diff options
Diffstat (limited to 'arch/powerpc/sysdev')
33 files changed, 595 insertions, 2716 deletions
diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig index 6c22d91..acdbf95 100644 --- a/arch/powerpc/sysdev/Kconfig +++ b/arch/powerpc/sysdev/Kconfig @@ -19,6 +19,7 @@ config PPC_MSI_BITMAP default y if MPIC default y if FSL_PCI default y if PPC4xx_MSI + default y if POWERNV_MSI source "arch/powerpc/sysdev/xics/Kconfig" diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index fa63186..4a66c65 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -29,7 +29,6 @@ obj-$(CONFIG_SIMPLE_GPIO) += simple_gpio.o obj-$(CONFIG_FSL_RIO) += fsl_rio.o fsl_rmu.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o obj-$(CONFIG_QUICC_ENGINE) += qe_lib/ -obj-$(CONFIG_PPC_BESTCOMM) += bestcomm/ mv64x60-$(CONFIG_PCI) += mv64x60_pci.o obj-$(CONFIG_MV64X60) += $(mv64x60-y) mv64x60_pic.o mv64x60_dev.o \ mv64x60_udbg.o @@ -40,6 +39,7 @@ obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o obj-$(CONFIG_PPC_I8259) += i8259.o obj-$(CONFIG_IPIC) += ipic.o obj-$(CONFIG_4xx) += uic.o +obj-$(CONFIG_PPC4xx_OCM) += ppc4xx_ocm.o obj-$(CONFIG_4xx_SOC) += ppc4xx_soc.o obj-$(CONFIG_XILINX_VIRTEX) += xilinx_intc.o obj-$(CONFIG_XILINX_PCI) += xilinx_pci.o @@ -67,6 +67,8 @@ endif obj-$(CONFIG_PPC_SCOM) += scom.o +obj-$(CONFIG_PPC_EARLY_DEBUG_MEMCONS) += udbg_memcons.o + subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror obj-$(CONFIG_PPC_XICS) += xics/ diff --git a/arch/powerpc/sysdev/bestcomm/Kconfig b/arch/powerpc/sysdev/bestcomm/Kconfig deleted file mode 100644 index 29e4270..0000000 --- a/arch/powerpc/sysdev/bestcomm/Kconfig +++ /dev/null @@ -1,36 +0,0 @@ -# -# Kconfig options for Bestcomm -# - -config PPC_BESTCOMM - tristate "Bestcomm DMA engine support" - depends on PPC_MPC52xx - default n - select PPC_LIB_RHEAP - help - BestComm is the name of the communication coprocessor found - on the Freescale MPC5200 family of processor. Its usage is - optional for some drivers (like ATA), but required for - others (like FEC). - - If you want to use drivers that require DMA operations, - answer Y or M. Otherwise say N. - -config PPC_BESTCOMM_ATA - tristate - depends on PPC_BESTCOMM - help - This option enables the support for the ATA task. - -config PPC_BESTCOMM_FEC - tristate - depends on PPC_BESTCOMM - help - This option enables the support for the FEC tasks. - -config PPC_BESTCOMM_GEN_BD - tristate - depends on PPC_BESTCOMM - help - This option enables the support for the GenBD tasks. - diff --git a/arch/powerpc/sysdev/bestcomm/Makefile b/arch/powerpc/sysdev/bestcomm/Makefile deleted file mode 100644 index aed2df2..0000000 --- a/arch/powerpc/sysdev/bestcomm/Makefile +++ /dev/null @@ -1,14 +0,0 @@ -# -# Makefile for BestComm & co -# - -bestcomm-core-objs := bestcomm.o sram.o -bestcomm-ata-objs := ata.o bcom_ata_task.o -bestcomm-fec-objs := fec.o bcom_fec_rx_task.o bcom_fec_tx_task.o -bestcomm-gen-bd-objs := gen_bd.o bcom_gen_bd_rx_task.o bcom_gen_bd_tx_task.o - -obj-$(CONFIG_PPC_BESTCOMM) += bestcomm-core.o -obj-$(CONFIG_PPC_BESTCOMM_ATA) += bestcomm-ata.o -obj-$(CONFIG_PPC_BESTCOMM_FEC) += bestcomm-fec.o -obj-$(CONFIG_PPC_BESTCOMM_GEN_BD) += bestcomm-gen-bd.o - diff --git a/arch/powerpc/sysdev/bestcomm/ata.c b/arch/powerpc/sysdev/bestcomm/ata.c deleted file mode 100644 index 901c9f9..0000000 --- a/arch/powerpc/sysdev/bestcomm/ata.c +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Bestcomm ATA task driver - * - * - * Patterned after bestcomm/fec.c by Dale Farnsworth <dfarnsworth@mvista.com> - * 2003-2004 (c) MontaVista, Software, Inc. - * - * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2006 Freescale - John Rigby - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <asm/io.h> - -#include "bestcomm.h" -#include "bestcomm_priv.h" -#include "ata.h" - - -/* ======================================================================== */ -/* Task image/var/inc */ -/* ======================================================================== */ - -/* ata task image */ -extern u32 bcom_ata_task[]; - -/* ata task vars that need to be set before enabling the task */ -struct bcom_ata_var { - u32 enable; /* (u16*) address of task's control register */ - u32 bd_base; /* (struct bcom_bd*) beginning of ring buffer */ - u32 bd_last; /* (struct bcom_bd*) end of ring buffer */ - u32 bd_start; /* (struct bcom_bd*) current bd */ - u32 buffer_size; /* size of receive buffer */ -}; - -/* ata task incs that need to be set before enabling the task */ -struct bcom_ata_inc { - u16 pad0; - s16 incr_bytes; - u16 pad1; - s16 incr_dst; - u16 pad2; - s16 incr_src; -}; - - -/* ======================================================================== */ -/* Task support code */ -/* ======================================================================== */ - -struct bcom_task * -bcom_ata_init(int queue_len, int maxbufsize) -{ - struct bcom_task *tsk; - struct bcom_ata_var *var; - struct bcom_ata_inc *inc; - - /* Prefetch breaks ATA DMA. Turn it off for ATA DMA */ - bcom_disable_prefetch(); - - tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_ata_bd), 0); - if (!tsk) - return NULL; - - tsk->flags = BCOM_FLAGS_NONE; - - bcom_ata_reset_bd(tsk); - - var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum); - inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum); - - if (bcom_load_image(tsk->tasknum, bcom_ata_task)) { - bcom_task_free(tsk); - return NULL; - } - - var->enable = bcom_eng->regs_base + - offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]); - var->bd_base = tsk->bd_pa; - var->bd_last = tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size); - var->bd_start = tsk->bd_pa; - var->buffer_size = maxbufsize; - - /* Configure some stuff */ - bcom_set_task_pragma(tsk->tasknum, BCOM_ATA_PRAGMA); - bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum); - - out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_RX], BCOM_IPR_ATA_RX); - out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_TX], BCOM_IPR_ATA_TX); - - out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */ - - return tsk; -} -EXPORT_SYMBOL_GPL(bcom_ata_init); - -void bcom_ata_rx_prepare(struct bcom_task *tsk) -{ - struct bcom_ata_inc *inc; - - inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum); - - inc->incr_bytes = -(s16)sizeof(u32); - inc->incr_src = 0; - inc->incr_dst = sizeof(u32); - - bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_RX); -} -EXPORT_SYMBOL_GPL(bcom_ata_rx_prepare); - -void bcom_ata_tx_prepare(struct bcom_task *tsk) -{ - struct bcom_ata_inc *inc; - - inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum); - - inc->incr_bytes = -(s16)sizeof(u32); - inc->incr_src = sizeof(u32); - inc->incr_dst = 0; - - bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_TX); -} -EXPORT_SYMBOL_GPL(bcom_ata_tx_prepare); - -void bcom_ata_reset_bd(struct bcom_task *tsk) -{ - struct bcom_ata_var *var; - - /* Reset all BD */ - memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size); - - tsk->index = 0; - tsk->outdex = 0; - - var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum); - var->bd_start = var->bd_base; -} -EXPORT_SYMBOL_GPL(bcom_ata_reset_bd); - -void bcom_ata_release(struct bcom_task *tsk) -{ - /* Nothing special for the ATA tasks */ - bcom_task_free(tsk); -} -EXPORT_SYMBOL_GPL(bcom_ata_release); - - -MODULE_DESCRIPTION("BestComm ATA task driver"); -MODULE_AUTHOR("John Rigby"); -MODULE_LICENSE("GPL v2"); - diff --git a/arch/powerpc/sysdev/bestcomm/ata.h b/arch/powerpc/sysdev/bestcomm/ata.h deleted file mode 100644 index 0b23718..0000000 --- a/arch/powerpc/sysdev/bestcomm/ata.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Header for Bestcomm ATA task driver - * - * - * Copyright (C) 2006 Freescale - John Rigby - * Copyright (C) 2006 Sylvain Munaut <tnt@246tNt.com> - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __BESTCOMM_ATA_H__ -#define __BESTCOMM_ATA_H__ - - -struct bcom_ata_bd { - u32 status; - u32 src_pa; - u32 dst_pa; -}; - -extern struct bcom_task * bcom_ata_init(int queue_len, int maxbufsize); -extern void bcom_ata_rx_prepare(struct bcom_task *tsk); -extern void bcom_ata_tx_prepare(struct bcom_task *tsk); -extern void bcom_ata_reset_bd(struct bcom_task *tsk); -extern void bcom_ata_release(struct bcom_task *tsk); - -#endif /* __BESTCOMM_ATA_H__ */ - diff --git a/arch/powerpc/sysdev/bestcomm/bcom_ata_task.c b/arch/powerpc/sysdev/bestcomm/bcom_ata_task.c deleted file mode 100644 index cc6049a..0000000 --- a/arch/powerpc/sysdev/bestcomm/bcom_ata_task.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Bestcomm ATA task microcode - * - * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * Created based on bestcom/code_dma/image_rtos1/dma_image.hex - */ - -#include <asm/types.h> - -/* - * The header consists of the following fields: - * u32 magic; - * u8 desc_size; - * u8 var_size; - * u8 inc_size; - * u8 first_var; - * u8 reserved[8]; - * - * The size fields contain the number of 32-bit words. - */ - -u32 bcom_ata_task[] = { - /* header */ - 0x4243544b, - 0x0e060709, - 0x00000000, - 0x00000000, - - /* Task descriptors */ - 0x8198009b, /* LCD: idx0 = var3; idx0 <= var2; idx0 += inc3 */ - 0x13e00c08, /* DRD1A: var3 = var1; FN=0 MORE init=31 WS=0 RS=0 */ - 0xb8000264, /* LCD: idx1 = *idx0, idx2 = var0; idx1 < var9; idx1 += inc4, idx2 += inc4 */ - 0x10000f00, /* DRD1A: var3 = idx0; FN=0 MORE init=0 WS=0 RS=0 */ - 0x60140002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */ - 0x0c8cfc8a, /* DRD2B1: *idx2 = EU3(); EU3(*idx2,var10) */ - 0xd8988240, /* LCDEXT: idx1 = idx1; idx1 > var9; idx1 += inc0 */ - 0xf845e011, /* LCDEXT: idx2 = *(idx0 + var00000015); ; idx2 += inc2 */ - 0xb845e00a, /* LCD: idx3 = *(idx0 + var00000019); ; idx3 += inc1 */ - 0x0bfecf90, /* DRD1A: *idx3 = *idx2; FN=0 TFD init=31 WS=3 RS=3 */ - 0x9898802d, /* LCD: idx1 = idx1; idx1 once var0; idx1 += inc5 */ - 0x64000005, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 INT EXT init=0 WS=0 RS=0 */ - 0x0c0cf849, /* DRD2B1: *idx0 = EU3(); EU3(idx1,var9) */ - 0x000001f8, /* NOP */ - - /* VAR[9]-VAR[14] */ - 0x40000000, - 0x7fff7fff, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - - /* INC[0]-INC[6] */ - 0x40000000, - 0xe0000000, - 0xe0000000, - 0xa000000c, - 0x20000000, - 0x00000000, - 0x00000000, -}; - diff --git a/arch/powerpc/sysdev/bestcomm/bcom_fec_rx_task.c b/arch/powerpc/sysdev/bestcomm/bcom_fec_rx_task.c deleted file mode 100644 index a1ad6a0..0000000 --- a/arch/powerpc/sysdev/bestcomm/bcom_fec_rx_task.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * Bestcomm FEC RX task microcode - * - * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * Automatically created based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex - * on Tue Mar 22 11:19:38 2005 GMT - */ - -#include <asm/types.h> - -/* - * The header consists of the following fields: - * u32 magic; - * u8 desc_size; - * u8 var_size; - * u8 inc_size; - * u8 first_var; - * u8 reserved[8]; - * - * The size fields contain the number of 32-bit words. - */ - -u32 bcom_fec_rx_task[] = { - /* header */ - 0x4243544b, - 0x18060709, - 0x00000000, - 0x00000000, - - /* Task descriptors */ - 0x808220e3, /* LCD: idx0 = var1, idx1 = var4; idx1 <= var3; idx0 += inc4, idx1 += inc3 */ - 0x10601010, /* DRD1A: var4 = var2; FN=0 MORE init=3 WS=0 RS=0 */ - 0xb8800264, /* LCD: idx2 = *idx1, idx3 = var0; idx2 < var9; idx2 += inc4, idx3 += inc4 */ - 0x10001308, /* DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ - 0x60140002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */ - 0x0cccfcca, /* DRD2B1: *idx3 = EU3(); EU3(*idx3,var10) */ - 0x80004000, /* LCDEXT: idx2 = 0x00000000; ; */ - 0xb8c58029, /* LCD: idx3 = *(idx1 + var00000015); idx3 once var0; idx3 += inc5 */ - 0x60000002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=0 RS=0 */ - 0x088cf8cc, /* DRD2B1: idx2 = EU3(); EU3(idx3,var12) */ - 0x991982f2, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var11; idx2 += inc6, idx3 += inc2 */ - 0x006acf80, /* DRD1A: *idx3 = *idx0; FN=0 init=3 WS=1 RS=1 */ - 0x80004000, /* LCDEXT: idx2 = 0x00000000; ; */ - 0x9999802d, /* LCD: idx3 = idx3; idx3 once var0; idx3 += inc5 */ - 0x70000002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */ - 0x034cfc4e, /* DRD2B1: var13 = EU3(); EU3(*idx1,var14) */ - 0x00008868, /* DRD1A: idx2 = var13; FN=0 init=0 WS=0 RS=0 */ - 0x99198341, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var13; idx2 += inc0, idx3 += inc1 */ - 0x007ecf80, /* DRD1A: *idx3 = *idx0; FN=0 init=3 WS=3 RS=3 */ - 0x99198272, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var9; idx2 += inc6, idx3 += inc2 */ - 0x046acf80, /* DRD1A: *idx3 = *idx0; FN=0 INT init=3 WS=1 RS=1 */ - 0x9819002d, /* LCD: idx2 = idx0; idx2 once var0; idx2 += inc5 */ - 0x0060c790, /* DRD1A: *idx1 = *idx2; FN=0 init=3 WS=0 RS=0 */ - 0x000001f8, /* NOP */ - - /* VAR[9]-VAR[14] */ - 0x40000000, - 0x7fff7fff, - 0x00000000, - 0x00000003, - 0x40000008, - 0x43ffffff, - - /* INC[0]-INC[6] */ - 0x40000000, - 0xe0000000, - 0xe0000000, - 0xa0000008, - 0x20000000, - 0x00000000, - 0x4000ffff, -}; - diff --git a/arch/powerpc/sysdev/bestcomm/bcom_fec_tx_task.c b/arch/powerpc/sysdev/bestcomm/bcom_fec_tx_task.c deleted file mode 100644 index b1c495c..0000000 --- a/arch/powerpc/sysdev/bestcomm/bcom_fec_tx_task.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Bestcomm FEC TX task microcode - * - * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * Automatically created based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex - * on Tue Mar 22 11:19:29 2005 GMT - */ - -#include <asm/types.h> - -/* - * The header consists of the following fields: - * u32 magic; - * u8 desc_size; - * u8 var_size; - * u8 inc_size; - * u8 first_var; - * u8 reserved[8]; - * - * The size fields contain the number of 32-bit words. - */ - -u32 bcom_fec_tx_task[] = { - /* header */ - 0x4243544b, - 0x2407070d, - 0x00000000, - 0x00000000, - - /* Task descriptors */ - 0x8018001b, /* LCD: idx0 = var0; idx0 <= var0; idx0 += inc3 */ - 0x60000005, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */ - 0x01ccfc0d, /* DRD2B1: var7 = EU3(); EU3(*idx0,var13) */ - 0x8082a123, /* LCD: idx0 = var1, idx1 = var5; idx1 <= var4; idx0 += inc4, idx1 += inc3 */ - 0x10801418, /* DRD1A: var5 = var3; FN=0 MORE init=4 WS=0 RS=0 */ - 0xf88103a4, /* LCDEXT: idx2 = *idx1, idx3 = var2; idx2 < var14; idx2 += inc4, idx3 += inc4 */ - 0x801a6024, /* LCD: idx4 = var0; ; idx4 += inc4 */ - 0x10001708, /* DRD1A: var5 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ - 0x60140002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */ - 0x0cccfccf, /* DRD2B1: *idx3 = EU3(); EU3(*idx3,var15) */ - 0x991a002c, /* LCD: idx2 = idx2, idx3 = idx4; idx2 once var0; idx2 += inc5, idx3 += inc4 */ - 0x70000002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */ - 0x024cfc4d, /* DRD2B1: var9 = EU3(); EU3(*idx1,var13) */ - 0x60000003, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=3 EXT init=0 WS=0 RS=0 */ - 0x0cccf247, /* DRD2B1: *idx3 = EU3(); EU3(var9,var7) */ - 0x80004000, /* LCDEXT: idx2 = 0x00000000; ; */ - 0xb8c80029, /* LCD: idx3 = *(idx1 + var0000001a); idx3 once var0; idx3 += inc5 */ - 0x70000002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */ - 0x088cf8d1, /* DRD2B1: idx2 = EU3(); EU3(idx3,var17) */ - 0x00002f10, /* DRD1A: var11 = idx2; FN=0 init=0 WS=0 RS=0 */ - 0x99198432, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var16; idx2 += inc6, idx3 += inc2 */ - 0x008ac398, /* DRD1A: *idx0 = *idx3; FN=0 init=4 WS=1 RS=1 */ - 0x80004000, /* LCDEXT: idx2 = 0x00000000; ; */ - 0x9999802d, /* LCD: idx3 = idx3; idx3 once var0; idx3 += inc5 */ - 0x70000002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT MORE init=0 WS=0 RS=0 */ - 0x048cfc53, /* DRD2B1: var18 = EU3(); EU3(*idx1,var19) */ - 0x60000008, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=8 EXT init=0 WS=0 RS=0 */ - 0x088cf48b, /* DRD2B1: idx2 = EU3(); EU3(var18,var11) */ - 0x99198481, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var18; idx2 += inc0, idx3 += inc1 */ - 0x009ec398, /* DRD1A: *idx0 = *idx3; FN=0 init=4 WS=3 RS=3 */ - 0x991983b2, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var14; idx2 += inc6, idx3 += inc2 */ - 0x088ac398, /* DRD1A: *idx0 = *idx3; FN=0 TFD init=4 WS=1 RS=1 */ - 0x9919002d, /* LCD: idx2 = idx2; idx2 once var0; idx2 += inc5 */ - 0x60000005, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */ - 0x0c4cf88e, /* DRD2B1: *idx1 = EU3(); EU3(idx2,var14) */ - 0x000001f8, /* NOP */ - - /* VAR[13]-VAR[19] */ - 0x0c000000, - 0x40000000, - 0x7fff7fff, - 0x00000000, - 0x00000003, - 0x40000004, - 0x43ffffff, - - /* INC[0]-INC[6] */ - 0x40000000, - 0xe0000000, - 0xe0000000, - 0xa0000008, - 0x20000000, - 0x00000000, - 0x4000ffff, -}; - diff --git a/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_rx_task.c b/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_rx_task.c deleted file mode 100644 index efee022..0000000 --- a/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_rx_task.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Bestcomm GenBD RX task microcode - * - * Copyright (C) 2006 AppSpec Computer Technologies Corp. - * Jeff Gibbons <jeff.gibbons@appspec.com> - * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * Based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex - * on Tue Mar 4 10:14:12 2006 GMT - * - */ - -#include <asm/types.h> - -/* - * The header consists of the following fields: - * u32 magic; - * u8 desc_size; - * u8 var_size; - * u8 inc_size; - * u8 first_var; - * u8 reserved[8]; - * - * The size fields contain the number of 32-bit words. - */ - -u32 bcom_gen_bd_rx_task[] = { - /* header */ - 0x4243544b, - 0x0d020409, - 0x00000000, - 0x00000000, - - /* Task descriptors */ - 0x808220da, /* LCD: idx0 = var1, idx1 = var4; idx1 <= var3; idx0 += inc3, idx1 += inc2 */ - 0x13e01010, /* DRD1A: var4 = var2; FN=0 MORE init=31 WS=0 RS=0 */ - 0xb880025b, /* LCD: idx2 = *idx1, idx3 = var0; idx2 < var9; idx2 += inc3, idx3 += inc3 */ - 0x10001308, /* DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ - 0x60140002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */ - 0x0cccfcca, /* DRD2B1: *idx3 = EU3(); EU3(*idx3,var10) */ - 0xd9190240, /* LCDEXT: idx2 = idx2; idx2 > var9; idx2 += inc0 */ - 0xb8c5e009, /* LCD: idx3 = *(idx1 + var00000015); ; idx3 += inc1 */ - 0x07fecf80, /* DRD1A: *idx3 = *idx0; FN=0 INT init=31 WS=3 RS=3 */ - 0x99190024, /* LCD: idx2 = idx2; idx2 once var0; idx2 += inc4 */ - 0x60000005, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */ - 0x0c4cf889, /* DRD2B1: *idx1 = EU3(); EU3(idx2,var9) */ - 0x000001f8, /* NOP */ - - /* VAR[9]-VAR[10] */ - 0x40000000, - 0x7fff7fff, - - /* INC[0]-INC[3] */ - 0x40000000, - 0xe0000000, - 0xa0000008, - 0x20000000, -}; - diff --git a/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_tx_task.c b/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_tx_task.c deleted file mode 100644 index c605aa4..0000000 --- a/arch/powerpc/sysdev/bestcomm/bcom_gen_bd_tx_task.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Bestcomm GenBD TX task microcode - * - * Copyright (C) 2006 AppSpec Computer Technologies Corp. - * Jeff Gibbons <jeff.gibbons@appspec.com> - * Copyright (c) 2004 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * Based on BestCommAPI-2.2/code_dma/image_rtos1/dma_image.hex - * on Tue Mar 4 10:14:12 2006 GMT - * - */ - -#include <asm/types.h> - -/* - * The header consists of the following fields: - * u32 magic; - * u8 desc_size; - * u8 var_size; - * u8 inc_size; - * u8 first_var; - * u8 reserved[8]; - * - * The size fields contain the number of 32-bit words. - */ - -u32 bcom_gen_bd_tx_task[] = { - /* header */ - 0x4243544b, - 0x0f040609, - 0x00000000, - 0x00000000, - - /* Task descriptors */ - 0x800220e3, /* LCD: idx0 = var0, idx1 = var4; idx1 <= var3; idx0 += inc4, idx1 += inc3 */ - 0x13e01010, /* DRD1A: var4 = var2; FN=0 MORE init=31 WS=0 RS=0 */ - 0xb8808264, /* LCD: idx2 = *idx1, idx3 = var1; idx2 < var9; idx2 += inc4, idx3 += inc4 */ - 0x10001308, /* DRD1A: var4 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ - 0x60140002, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=2 RS=2 */ - 0x0cccfcca, /* DRD2B1: *idx3 = EU3(); EU3(*idx3,var10) */ - 0xd9190300, /* LCDEXT: idx2 = idx2; idx2 > var12; idx2 += inc0 */ - 0xb8c5e009, /* LCD: idx3 = *(idx1 + var00000015); ; idx3 += inc1 */ - 0x03fec398, /* DRD1A: *idx0 = *idx3; FN=0 init=31 WS=3 RS=3 */ - 0x9919826a, /* LCD: idx2 = idx2, idx3 = idx3; idx2 > var9; idx2 += inc5, idx3 += inc2 */ - 0x0feac398, /* DRD1A: *idx0 = *idx3; FN=0 TFD INT init=31 WS=1 RS=1 */ - 0x99190036, /* LCD: idx2 = idx2; idx2 once var0; idx2 += inc6 */ - 0x60000005, /* DRD2A: EU0=0 EU1=0 EU2=0 EU3=5 EXT init=0 WS=0 RS=0 */ - 0x0c4cf889, /* DRD2B1: *idx1 = EU3(); EU3(idx2,var9) */ - 0x000001f8, /* NOP */ - - /* VAR[9]-VAR[12] */ - 0x40000000, - 0x7fff7fff, - 0x00000000, - 0x40000004, - - /* INC[0]-INC[5] */ - 0x40000000, - 0xe0000000, - 0xe0000000, - 0xa0000008, - 0x20000000, - 0x4000ffff, -}; - diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.c b/arch/powerpc/sysdev/bestcomm/bestcomm.c deleted file mode 100644 index d913063..0000000 --- a/arch/powerpc/sysdev/bestcomm/bestcomm.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - * Driver for MPC52xx processor BestComm peripheral controller - * - * - * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2005 Varma Electronics Oy, - * ( by Andrey Volkov <avolkov@varma-el.com> ) - * Copyright (C) 2003-2004 MontaVista, Software, Inc. - * ( by Dale Farnsworth <dfarnsworth@mvista.com> ) - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/mpc52xx.h> - -#include "sram.h" -#include "bestcomm_priv.h" -#include "bestcomm.h" - -#define DRIVER_NAME "bestcomm-core" - -/* MPC5200 device tree match tables */ -static struct of_device_id mpc52xx_sram_ids[] = { - { .compatible = "fsl,mpc5200-sram", }, - { .compatible = "mpc5200-sram", }, - {} -}; - - -struct bcom_engine *bcom_eng = NULL; -EXPORT_SYMBOL_GPL(bcom_eng); /* needed for inline functions */ - -/* ======================================================================== */ -/* Public and private API */ -/* ======================================================================== */ - -/* Private API */ - -struct bcom_task * -bcom_task_alloc(int bd_count, int bd_size, int priv_size) -{ - int i, tasknum = -1; - struct bcom_task *tsk; - - /* Don't try to do anything if bestcomm init failed */ - if (!bcom_eng) - return NULL; - - /* Get and reserve a task num */ - spin_lock(&bcom_eng->lock); - - for (i=0; i<BCOM_MAX_TASKS; i++) - if (!bcom_eng->tdt[i].stop) { /* we use stop as a marker */ - bcom_eng->tdt[i].stop = 0xfffffffful; /* dummy addr */ - tasknum = i; - break; - } - - spin_unlock(&bcom_eng->lock); - - if (tasknum < 0) - return NULL; - - /* Allocate our structure */ - tsk = kzalloc(sizeof(struct bcom_task) + priv_size, GFP_KERNEL); - if (!tsk) - goto error; - - tsk->tasknum = tasknum; - if (priv_size) - tsk->priv = (void*)tsk + sizeof(struct bcom_task); - - /* Get IRQ of that task */ - tsk->irq = irq_of_parse_and_map(bcom_eng->ofnode, tsk->tasknum); - if (tsk->irq == NO_IRQ) - goto error; - - /* Init the BDs, if needed */ - if (bd_count) { - tsk->cookie = kmalloc(sizeof(void*) * bd_count, GFP_KERNEL); - if (!tsk->cookie) - goto error; - - tsk->bd = bcom_sram_alloc(bd_count * bd_size, 4, &tsk->bd_pa); - if (!tsk->bd) - goto error; - memset(tsk->bd, 0x00, bd_count * bd_size); - - tsk->num_bd = bd_count; - tsk->bd_size = bd_size; - } - - return tsk; - -error: - if (tsk) { - if (tsk->irq != NO_IRQ) - irq_dispose_mapping(tsk->irq); - bcom_sram_free(tsk->bd); - kfree(tsk->cookie); - kfree(tsk); - } - - bcom_eng->tdt[tasknum].stop = 0; - - return NULL; -} -EXPORT_SYMBOL_GPL(bcom_task_alloc); - -void -bcom_task_free(struct bcom_task *tsk) -{ - /* Stop the task */ - bcom_disable_task(tsk->tasknum); - - /* Clear TDT */ - bcom_eng->tdt[tsk->tasknum].start = 0; - bcom_eng->tdt[tsk->tasknum].stop = 0; - - /* Free everything */ - irq_dispose_mapping(tsk->irq); - bcom_sram_free(tsk->bd); - kfree(tsk->cookie); - kfree(tsk); -} -EXPORT_SYMBOL_GPL(bcom_task_free); - -int -bcom_load_image(int task, u32 *task_image) -{ - struct bcom_task_header *hdr = (struct bcom_task_header *)task_image; - struct bcom_tdt *tdt; - u32 *desc, *var, *inc; - u32 *desc_src, *var_src, *inc_src; - - /* Safety checks */ - if (hdr->magic != BCOM_TASK_MAGIC) { - printk(KERN_ERR DRIVER_NAME - ": Trying to load invalid microcode\n"); - return -EINVAL; - } - - if ((task < 0) || (task >= BCOM_MAX_TASKS)) { - printk(KERN_ERR DRIVER_NAME - ": Trying to load invalid task %d\n", task); - return -EINVAL; - } - - /* Initial load or reload */ - tdt = &bcom_eng->tdt[task]; - - if (tdt->start) { - desc = bcom_task_desc(task); - if (hdr->desc_size != bcom_task_num_descs(task)) { - printk(KERN_ERR DRIVER_NAME - ": Trying to reload wrong task image " - "(%d size %d/%d)!\n", - task, - hdr->desc_size, - bcom_task_num_descs(task)); - return -EINVAL; - } - } else { - phys_addr_t start_pa; - - desc = bcom_sram_alloc(hdr->desc_size * sizeof(u32), 4, &start_pa); - if (!desc) - return -ENOMEM; - - tdt->start = start_pa; - tdt->stop = start_pa + ((hdr->desc_size-1) * sizeof(u32)); - } - - var = bcom_task_var(task); - inc = bcom_task_inc(task); - - /* Clear & copy */ - memset(var, 0x00, BCOM_VAR_SIZE); - memset(inc, 0x00, BCOM_INC_SIZE); - - desc_src = (u32 *)(hdr + 1); - var_src = desc_src + hdr->desc_size; - inc_src = var_src + hdr->var_size; - - memcpy(desc, desc_src, hdr->desc_size * sizeof(u32)); - memcpy(var + hdr->first_var, var_src, hdr->var_size * sizeof(u32)); - memcpy(inc, inc_src, hdr->inc_size * sizeof(u32)); - - return 0; -} -EXPORT_SYMBOL_GPL(bcom_load_image); - -void -bcom_set_initiator(int task, int initiator) -{ - int i; - int num_descs; - u32 *desc; - int next_drd_has_initiator; - - bcom_set_tcr_initiator(task, initiator); - - /* Just setting tcr is apparently not enough due to some problem */ - /* with it. So we just go thru all the microcode and replace in */ - /* the DRD directly */ - - desc = bcom_task_desc(task); - next_drd_has_initiator = 1; - num_descs = bcom_task_num_descs(task); - - for (i=0; i<num_descs; i++, desc++) { - if (!bcom_desc_is_drd(*desc)) - continue; - if (next_drd_has_initiator) - if (bcom_desc_initiator(*desc) != BCOM_INITIATOR_ALWAYS) - bcom_set_desc_initiator(desc, initiator); - next_drd_has_initiator = !bcom_drd_is_extended(*desc); - } -} -EXPORT_SYMBOL_GPL(bcom_set_initiator); - - -/* Public API */ - -void -bcom_enable(struct bcom_task *tsk) -{ - bcom_enable_task(tsk->tasknum); -} -EXPORT_SYMBOL_GPL(bcom_enable); - -void -bcom_disable(struct bcom_task *tsk) -{ - bcom_disable_task(tsk->tasknum); -} -EXPORT_SYMBOL_GPL(bcom_disable); - - -/* ======================================================================== */ -/* Engine init/cleanup */ -/* ======================================================================== */ - -/* Function Descriptor table */ -/* this will need to be updated if Freescale changes their task code FDT */ -static u32 fdt_ops[] = { - 0xa0045670, /* FDT[48] - load_acc() */ - 0x80045670, /* FDT[49] - unload_acc() */ - 0x21800000, /* FDT[50] - and() */ - 0x21e00000, /* FDT[51] - or() */ - 0x21500000, /* FDT[52] - xor() */ - 0x21400000, /* FDT[53] - andn() */ - 0x21500000, /* FDT[54] - not() */ - 0x20400000, /* FDT[55] - add() */ - 0x20500000, /* FDT[56] - sub() */ - 0x20800000, /* FDT[57] - lsh() */ - 0x20a00000, /* FDT[58] - rsh() */ - 0xc0170000, /* FDT[59] - crc8() */ - 0xc0145670, /* FDT[60] - crc16() */ - 0xc0345670, /* FDT[61] - crc32() */ - 0xa0076540, /* FDT[62] - endian32() */ - 0xa0000760, /* FDT[63] - endian16() */ -}; - - -static int bcom_engine_init(void) -{ - int task; - phys_addr_t tdt_pa, ctx_pa, var_pa, fdt_pa; - unsigned int tdt_size, ctx_size, var_size, fdt_size; - - /* Allocate & clear SRAM zones for FDT, TDTs, contexts and vars/incs */ - tdt_size = BCOM_MAX_TASKS * sizeof(struct bcom_tdt); - ctx_size = BCOM_MAX_TASKS * BCOM_CTX_SIZE; - var_size = BCOM_MAX_TASKS * (BCOM_VAR_SIZE + BCOM_INC_SIZE); - fdt_size = BCOM_FDT_SIZE; - - bcom_eng->tdt = bcom_sram_alloc(tdt_size, sizeof(u32), &tdt_pa); - bcom_eng->ctx = bcom_sram_alloc(ctx_size, BCOM_CTX_ALIGN, &ctx_pa); - bcom_eng->var = bcom_sram_alloc(var_size, BCOM_VAR_ALIGN, &var_pa); - bcom_eng->fdt = bcom_sram_alloc(fdt_size, BCOM_FDT_ALIGN, &fdt_pa); - - if (!bcom_eng->tdt || !bcom_eng->ctx || !bcom_eng->var || !bcom_eng->fdt) { - printk(KERN_ERR "DMA: SRAM alloc failed in engine init !\n"); - - bcom_sram_free(bcom_eng->tdt); - bcom_sram_free(bcom_eng->ctx); - bcom_sram_free(bcom_eng->var); - bcom_sram_free(bcom_eng->fdt); - - return -ENOMEM; - } - - memset(bcom_eng->tdt, 0x00, tdt_size); - memset(bcom_eng->ctx, 0x00, ctx_size); - memset(bcom_eng->var, 0x00, var_size); - memset(bcom_eng->fdt, 0x00, fdt_size); - - /* Copy the FDT for the EU#3 */ - memcpy(&bcom_eng->fdt[48], fdt_ops, sizeof(fdt_ops)); - - /* Initialize Task base structure */ - for (task=0; task<BCOM_MAX_TASKS; task++) - { - out_be16(&bcom_eng->regs->tcr[task], 0); - out_8(&bcom_eng->regs->ipr[task], 0); - - bcom_eng->tdt[task].context = ctx_pa; - bcom_eng->tdt[task].var = var_pa; - bcom_eng->tdt[task].fdt = fdt_pa; - - var_pa += BCOM_VAR_SIZE + BCOM_INC_SIZE; - ctx_pa += BCOM_CTX_SIZE; - } - - out_be32(&bcom_eng->regs->taskBar, tdt_pa); - - /* Init 'always' initiator */ - out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ALWAYS], BCOM_IPR_ALWAYS); - - /* Disable COMM Bus Prefetch on the original 5200; it's broken */ - if ((mfspr(SPRN_SVR) & MPC5200_SVR_MASK) == MPC5200_SVR) - bcom_disable_prefetch(); - - /* Init lock */ - spin_lock_init(&bcom_eng->lock); - - return 0; -} - -static void -bcom_engine_cleanup(void) -{ - int task; - - /* Stop all tasks */ - for (task=0; task<BCOM_MAX_TASKS; task++) - { - out_be16(&bcom_eng->regs->tcr[task], 0); - out_8(&bcom_eng->regs->ipr[task], 0); - } - - out_be32(&bcom_eng->regs->taskBar, 0ul); - - /* Release the SRAM zones */ - bcom_sram_free(bcom_eng->tdt); - bcom_sram_free(bcom_eng->ctx); - bcom_sram_free(bcom_eng->var); - bcom_sram_free(bcom_eng->fdt); -} - - -/* ======================================================================== */ -/* OF platform driver */ -/* ======================================================================== */ - -static int mpc52xx_bcom_probe(struct platform_device *op) -{ - struct device_node *ofn_sram; - struct resource res_bcom; - - int rv; - - /* Inform user we're ok so far */ - printk(KERN_INFO "DMA: MPC52xx BestComm driver\n"); - - /* Get the bestcomm node */ - of_node_get(op->dev.of_node); - - /* Prepare SRAM */ - ofn_sram = of_find_matching_node(NULL, mpc52xx_sram_ids); - if (!ofn_sram) { - printk(KERN_ERR DRIVER_NAME ": " - "No SRAM found in device tree\n"); - rv = -ENODEV; - goto error_ofput; - } - rv = bcom_sram_init(ofn_sram, DRIVER_NAME); - of_node_put(ofn_sram); - - if (rv) { - printk(KERN_ERR DRIVER_NAME ": " - "Error in SRAM init\n"); - goto error_ofput; - } - - /* Get a clean struct */ - bcom_eng = kzalloc(sizeof(struct bcom_engine), GFP_KERNEL); - if (!bcom_eng) { - printk(KERN_ERR DRIVER_NAME ": " - "Can't allocate state structure\n"); - rv = -ENOMEM; - goto error_sramclean; - } - - /* Save the node */ - bcom_eng->ofnode = op->dev.of_node; - - /* Get, reserve & map io */ - if (of_address_to_resource(op->dev.of_node, 0, &res_bcom)) { - printk(KERN_ERR DRIVER_NAME ": " - "Can't get resource\n"); - rv = -EINVAL; - goto error_sramclean; - } - - if (!request_mem_region(res_bcom.start, sizeof(struct mpc52xx_sdma), - DRIVER_NAME)) { - printk(KERN_ERR DRIVER_NAME ": " - "Can't request registers region\n"); - rv = -EBUSY; - goto error_sramclean; - } - - bcom_eng->regs_base = res_bcom.start; - bcom_eng->regs = ioremap(res_bcom.start, sizeof(struct mpc52xx_sdma)); - if (!bcom_eng->regs) { - printk(KERN_ERR DRIVER_NAME ": " - "Can't map registers\n"); - rv = -ENOMEM; - goto error_release; - } - - /* Now, do the real init */ - rv = bcom_engine_init(); - if (rv) - goto error_unmap; - - /* Done ! */ - printk(KERN_INFO "DMA: MPC52xx BestComm engine @%08lx ok !\n", - (long)bcom_eng->regs_base); - - return 0; - - /* Error path */ -error_unmap: - iounmap(bcom_eng->regs); -error_release: - release_mem_region(res_bcom.start, sizeof(struct mpc52xx_sdma)); -error_sramclean: - kfree(bcom_eng); - bcom_sram_cleanup(); -error_ofput: - of_node_put(op->dev.of_node); - - printk(KERN_ERR "DMA: MPC52xx BestComm init failed !\n"); - - return rv; -} - - -static int mpc52xx_bcom_remove(struct platform_device *op) -{ - /* Clean up the engine */ - bcom_engine_cleanup(); - - /* Cleanup SRAM */ - bcom_sram_cleanup(); - - /* Release regs */ - iounmap(bcom_eng->regs); - release_mem_region(bcom_eng->regs_base, sizeof(struct mpc52xx_sdma)); - - /* Release the node */ - of_node_put(bcom_eng->ofnode); - - /* Release memory */ - kfree(bcom_eng); - bcom_eng = NULL; - - return 0; -} - -static struct of_device_id mpc52xx_bcom_of_match[] = { - { .compatible = "fsl,mpc5200-bestcomm", }, - { .compatible = "mpc5200-bestcomm", }, - {}, -}; - -MODULE_DEVICE_TABLE(of, mpc52xx_bcom_of_match); - - -static struct platform_driver mpc52xx_bcom_of_platform_driver = { - .probe = mpc52xx_bcom_probe, - .remove = mpc52xx_bcom_remove, - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - .of_match_table = mpc52xx_bcom_of_match, - }, -}; - - -/* ======================================================================== */ -/* Module */ -/* ======================================================================== */ - -static int __init -mpc52xx_bcom_init(void) -{ - return platform_driver_register(&mpc52xx_bcom_of_platform_driver); -} - -static void __exit -mpc52xx_bcom_exit(void) -{ - platform_driver_unregister(&mpc52xx_bcom_of_platform_driver); -} - -/* If we're not a module, we must make sure everything is setup before */ -/* anyone tries to use us ... that's why we use subsys_initcall instead */ -/* of module_init. */ -subsys_initcall(mpc52xx_bcom_init); -module_exit(mpc52xx_bcom_exit); - -MODULE_DESCRIPTION("Freescale MPC52xx BestComm DMA"); -MODULE_AUTHOR("Sylvain Munaut <tnt@246tNt.com>"); -MODULE_AUTHOR("Andrey Volkov <avolkov@varma-el.com>"); -MODULE_AUTHOR("Dale Farnsworth <dfarnsworth@mvista.com>"); -MODULE_LICENSE("GPL v2"); - diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.h b/arch/powerpc/sysdev/bestcomm/bestcomm.h deleted file mode 100644 index a0e2e6b..0000000 --- a/arch/powerpc/sysdev/bestcomm/bestcomm.h +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Public header for the MPC52xx processor BestComm driver - * - * - * Copyright (C) 2006 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2005 Varma Electronics Oy, - * ( by Andrey Volkov <avolkov@varma-el.com> ) - * Copyright (C) 2003-2004 MontaVista, Software, Inc. - * ( by Dale Farnsworth <dfarnsworth@mvista.com> ) - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __BESTCOMM_H__ -#define __BESTCOMM_H__ - -/** - * struct bcom_bd - Structure describing a generic BestComm buffer descriptor - * @status: The current status of this buffer. Exact meaning depends on the - * task type - * @data: An array of u32 extra data. Size of array is task dependent. - * - * Note: Don't dereference a bcom_bd pointer as an array. The size of the - * bcom_bd is variable. Use bcom_get_bd() instead. - */ -struct bcom_bd { - u32 status; - u32 data[0]; /* variable payload size */ -}; - -/* ======================================================================== */ -/* Generic task management */ -/* ======================================================================== */ - -/** - * struct bcom_task - Structure describing a loaded BestComm task - * - * This structure is never built by the driver it self. It's built and - * filled the intermediate layer of the BestComm API, the task dependent - * support code. - * - * Most likely you don't need to poke around inside this structure. The - * fields are exposed in the header just for the sake of inline functions - */ -struct bcom_task { - unsigned int tasknum; - unsigned int flags; - int irq; - - struct bcom_bd *bd; - phys_addr_t bd_pa; - void **cookie; - unsigned short index; - unsigned short outdex; - unsigned int num_bd; - unsigned int bd_size; - - void* priv; -}; - -#define BCOM_FLAGS_NONE 0x00000000ul -#define BCOM_FLAGS_ENABLE_TASK (1ul << 0) - -/** - * bcom_enable - Enable a BestComm task - * @tsk: The BestComm task structure - * - * This function makes sure the given task is enabled and can be run - * by the BestComm engine as needed - */ -extern void bcom_enable(struct bcom_task *tsk); - -/** - * bcom_disable - Disable a BestComm task - * @tsk: The BestComm task structure - * - * This function disable a given task, making sure it's not executed - * by the BestComm engine. - */ -extern void bcom_disable(struct bcom_task *tsk); - - -/** - * bcom_get_task_irq - Returns the irq number of a BestComm task - * @tsk: The BestComm task structure - */ -static inline int -bcom_get_task_irq(struct bcom_task *tsk) { - return tsk->irq; -} - -/* ======================================================================== */ -/* BD based tasks helpers */ -/* ======================================================================== */ - -#define BCOM_BD_READY 0x40000000ul - -/** _bcom_next_index - Get next input index. - * @tsk: pointer to task structure - * - * Support function; Device drivers should not call this - */ -static inline int -_bcom_next_index(struct bcom_task *tsk) -{ - return ((tsk->index + 1) == tsk->num_bd) ? 0 : tsk->index + 1; -} - -/** _bcom_next_outdex - Get next output index. - * @tsk: pointer to task structure - * - * Support function; Device drivers should not call this - */ -static inline int -_bcom_next_outdex(struct bcom_task *tsk) -{ - return ((tsk->outdex + 1) == tsk->num_bd) ? 0 : tsk->outdex + 1; -} - -/** - * bcom_queue_empty - Checks if a BestComm task BD queue is empty - * @tsk: The BestComm task structure - */ -static inline int -bcom_queue_empty(struct bcom_task *tsk) -{ - return tsk->index == tsk->outdex; -} - -/** - * bcom_queue_full - Checks if a BestComm task BD queue is full - * @tsk: The BestComm task structure - */ -static inline int -bcom_queue_full(struct bcom_task *tsk) -{ - return tsk->outdex == _bcom_next_index(tsk); -} - -/** - * bcom_get_bd - Get a BD from the queue - * @tsk: The BestComm task structure - * index: Index of the BD to fetch - */ -static inline struct bcom_bd -*bcom_get_bd(struct bcom_task *tsk, unsigned int index) -{ - /* A cast to (void*) so the address can be incremented by the - * real size instead of by sizeof(struct bcom_bd) */ - return ((void *)tsk->bd) + (index * tsk->bd_size); -} - -/** - * bcom_buffer_done - Checks if a BestComm - * @tsk: The BestComm task structure - */ -static inline int -bcom_buffer_done(struct bcom_task *tsk) -{ - struct bcom_bd *bd; - if (bcom_queue_empty(tsk)) - return 0; - - bd = bcom_get_bd(tsk, tsk->outdex); - return !(bd->status & BCOM_BD_READY); -} - -/** - * bcom_prepare_next_buffer - clear status of next available buffer. - * @tsk: The BestComm task structure - * - * Returns pointer to next buffer descriptor - */ -static inline struct bcom_bd * -bcom_prepare_next_buffer(struct bcom_task *tsk) -{ - struct bcom_bd *bd; - - bd = bcom_get_bd(tsk, tsk->index); - bd->status = 0; /* cleanup last status */ - return bd; -} - -static inline void -bcom_submit_next_buffer(struct bcom_task *tsk, void *cookie) -{ - struct bcom_bd *bd = bcom_get_bd(tsk, tsk->index); - - tsk->cookie[tsk->index] = cookie; - mb(); /* ensure the bd is really up-to-date */ - bd->status |= BCOM_BD_READY; - tsk->index = _bcom_next_index(tsk); - if (tsk->flags & BCOM_FLAGS_ENABLE_TASK) - bcom_enable(tsk); -} - -static inline void * -bcom_retrieve_buffer(struct bcom_task *tsk, u32 *p_status, struct bcom_bd **p_bd) -{ - void *cookie = tsk->cookie[tsk->outdex]; - struct bcom_bd *bd = bcom_get_bd(tsk, tsk->outdex); - - if (p_status) - *p_status = bd->status; - if (p_bd) - *p_bd = bd; - tsk->outdex = _bcom_next_outdex(tsk); - return cookie; -} - -#endif /* __BESTCOMM_H__ */ diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h b/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h deleted file mode 100644 index 3b52f3f..0000000 --- a/arch/powerpc/sysdev/bestcomm/bestcomm_priv.h +++ /dev/null @@ -1,350 +0,0 @@ -/* - * Private header for the MPC52xx processor BestComm driver - * - * By private, we mean that driver should not use it directly. It's meant - * to be used by the BestComm engine driver itself and by the intermediate - * layer between the core and the drivers. - * - * Copyright (C) 2006 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2005 Varma Electronics Oy, - * ( by Andrey Volkov <avolkov@varma-el.com> ) - * Copyright (C) 2003-2004 MontaVista, Software, Inc. - * ( by Dale Farnsworth <dfarnsworth@mvista.com> ) - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __BESTCOMM_PRIV_H__ -#define __BESTCOMM_PRIV_H__ - -#include <linux/spinlock.h> -#include <linux/of.h> -#include <asm/io.h> -#include <asm/mpc52xx.h> - -#include "sram.h" - - -/* ======================================================================== */ -/* Engine related stuff */ -/* ======================================================================== */ - -/* Zones sizes and needed alignments */ -#define BCOM_MAX_TASKS 16 -#define BCOM_MAX_VAR 24 -#define BCOM_MAX_INC 8 -#define BCOM_MAX_FDT 64 -#define BCOM_MAX_CTX 20 -#define BCOM_CTX_SIZE (BCOM_MAX_CTX * sizeof(u32)) -#define BCOM_CTX_ALIGN 0x100 -#define BCOM_VAR_SIZE (BCOM_MAX_VAR * sizeof(u32)) -#define BCOM_INC_SIZE (BCOM_MAX_INC * sizeof(u32)) -#define BCOM_VAR_ALIGN 0x80 -#define BCOM_FDT_SIZE (BCOM_MAX_FDT * sizeof(u32)) -#define BCOM_FDT_ALIGN 0x100 - -/** - * struct bcom_tdt - Task Descriptor Table Entry - * - */ -struct bcom_tdt { - u32 start; - u32 stop; - u32 var; - u32 fdt; - u32 exec_status; /* used internally by BestComm engine */ - u32 mvtp; /* used internally by BestComm engine */ - u32 context; - u32 litbase; -}; - -/** - * struct bcom_engine - * - * This holds all info needed globaly to handle the engine - */ -struct bcom_engine { - struct device_node *ofnode; - struct mpc52xx_sdma __iomem *regs; - phys_addr_t regs_base; - - struct bcom_tdt *tdt; - u32 *ctx; - u32 *var; - u32 *fdt; - - spinlock_t lock; -}; - -extern struct bcom_engine *bcom_eng; - - -/* ======================================================================== */ -/* Tasks related stuff */ -/* ======================================================================== */ - -/* Tasks image header */ -#define BCOM_TASK_MAGIC 0x4243544B /* 'BCTK' */ - -struct bcom_task_header { - u32 magic; - u8 desc_size; /* the size fields */ - u8 var_size; /* are given in number */ - u8 inc_size; /* of 32-bits words */ - u8 first_var; - u8 reserved[8]; -}; - -/* Descriptors structure & co */ -#define BCOM_DESC_NOP 0x000001f8 -#define BCOM_LCD_MASK 0x80000000 -#define BCOM_DRD_EXTENDED 0x40000000 -#define BCOM_DRD_INITIATOR_SHIFT 21 - -/* Tasks pragma */ -#define BCOM_PRAGMA_BIT_RSV 7 /* reserved pragma bit */ -#define BCOM_PRAGMA_BIT_PRECISE_INC 6 /* increment 0=when possible, */ - /* 1=iter end */ -#define BCOM_PRAGMA_BIT_RST_ERROR_NO 5 /* don't reset errors on */ - /* task enable */ -#define BCOM_PRAGMA_BIT_PACK 4 /* pack data enable */ -#define BCOM_PRAGMA_BIT_INTEGER 3 /* data alignment */ - /* 0=frac(msb), 1=int(lsb) */ -#define BCOM_PRAGMA_BIT_SPECREAD 2 /* XLB speculative read */ -#define BCOM_PRAGMA_BIT_CW 1 /* write line buffer enable */ -#define BCOM_PRAGMA_BIT_RL 0 /* read line buffer enable */ - - /* Looks like XLB speculative read generates XLB errors when a buffer - * is at the end of the physical memory. i.e. when accessing the - * lasts words, the engine tries to prefetch the next but there is no - * next ... - */ -#define BCOM_STD_PRAGMA ((0 << BCOM_PRAGMA_BIT_RSV) | \ - (0 << BCOM_PRAGMA_BIT_PRECISE_INC) | \ - (0 << BCOM_PRAGMA_BIT_RST_ERROR_NO) | \ - (0 << BCOM_PRAGMA_BIT_PACK) | \ - (0 << BCOM_PRAGMA_BIT_INTEGER) | \ - (0 << BCOM_PRAGMA_BIT_SPECREAD) | \ - (1 << BCOM_PRAGMA_BIT_CW) | \ - (1 << BCOM_PRAGMA_BIT_RL)) - -#define BCOM_PCI_PRAGMA ((0 << BCOM_PRAGMA_BIT_RSV) | \ - (0 << BCOM_PRAGMA_BIT_PRECISE_INC) | \ - (0 << BCOM_PRAGMA_BIT_RST_ERROR_NO) | \ - (0 << BCOM_PRAGMA_BIT_PACK) | \ - (1 << BCOM_PRAGMA_BIT_INTEGER) | \ - (0 << BCOM_PRAGMA_BIT_SPECREAD) | \ - (1 << BCOM_PRAGMA_BIT_CW) | \ - (1 << BCOM_PRAGMA_BIT_RL)) - -#define BCOM_ATA_PRAGMA BCOM_STD_PRAGMA -#define BCOM_CRC16_DP_0_PRAGMA BCOM_STD_PRAGMA -#define BCOM_CRC16_DP_1_PRAGMA BCOM_STD_PRAGMA -#define BCOM_FEC_RX_BD_PRAGMA BCOM_STD_PRAGMA -#define BCOM_FEC_TX_BD_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_0_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_1_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_2_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_3_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_BD_0_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_DP_BD_1_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_RX_BD_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_TX_BD_PRAGMA BCOM_STD_PRAGMA -#define BCOM_GEN_LPC_PRAGMA BCOM_STD_PRAGMA -#define BCOM_PCI_RX_PRAGMA BCOM_PCI_PRAGMA -#define BCOM_PCI_TX_PRAGMA BCOM_PCI_PRAGMA - -/* Initiators number */ -#define BCOM_INITIATOR_ALWAYS 0 -#define BCOM_INITIATOR_SCTMR_0 1 -#define BCOM_INITIATOR_SCTMR_1 2 -#define BCOM_INITIATOR_FEC_RX 3 -#define BCOM_INITIATOR_FEC_TX 4 -#define BCOM_INITIATOR_ATA_RX 5 -#define BCOM_INITIATOR_ATA_TX 6 -#define BCOM_INITIATOR_SCPCI_RX 7 -#define BCOM_INITIATOR_SCPCI_TX 8 -#define BCOM_INITIATOR_PSC3_RX 9 -#define BCOM_INITIATOR_PSC3_TX 10 -#define BCOM_INITIATOR_PSC2_RX 11 -#define BCOM_INITIATOR_PSC2_TX 12 -#define BCOM_INITIATOR_PSC1_RX 13 -#define BCOM_INITIATOR_PSC1_TX 14 -#define BCOM_INITIATOR_SCTMR_2 15 -#define BCOM_INITIATOR_SCLPC 16 -#define BCOM_INITIATOR_PSC5_RX 17 -#define BCOM_INITIATOR_PSC5_TX 18 -#define BCOM_INITIATOR_PSC4_RX 19 -#define BCOM_INITIATOR_PSC4_TX 20 -#define BCOM_INITIATOR_I2C2_RX 21 -#define BCOM_INITIATOR_I2C2_TX 22 -#define BCOM_INITIATOR_I2C1_RX 23 -#define BCOM_INITIATOR_I2C1_TX 24 -#define BCOM_INITIATOR_PSC6_RX 25 -#define BCOM_INITIATOR_PSC6_TX 26 -#define BCOM_INITIATOR_IRDA_RX 25 -#define BCOM_INITIATOR_IRDA_TX 26 -#define BCOM_INITIATOR_SCTMR_3 27 -#define BCOM_INITIATOR_SCTMR_4 28 -#define BCOM_INITIATOR_SCTMR_5 29 -#define BCOM_INITIATOR_SCTMR_6 30 -#define BCOM_INITIATOR_SCTMR_7 31 - -/* Initiators priorities */ -#define BCOM_IPR_ALWAYS 7 -#define BCOM_IPR_SCTMR_0 2 -#define BCOM_IPR_SCTMR_1 2 -#define BCOM_IPR_FEC_RX 6 -#define BCOM_IPR_FEC_TX 5 -#define BCOM_IPR_ATA_RX 7 -#define BCOM_IPR_ATA_TX 7 -#define BCOM_IPR_SCPCI_RX 2 -#define BCOM_IPR_SCPCI_TX 2 -#define BCOM_IPR_PSC3_RX 2 -#define BCOM_IPR_PSC3_TX 2 -#define BCOM_IPR_PSC2_RX 2 -#define BCOM_IPR_PSC2_TX 2 -#define BCOM_IPR_PSC1_RX 2 -#define BCOM_IPR_PSC1_TX 2 -#define BCOM_IPR_SCTMR_2 2 -#define BCOM_IPR_SCLPC 2 -#define BCOM_IPR_PSC5_RX 2 -#define BCOM_IPR_PSC5_TX 2 -#define BCOM_IPR_PSC4_RX 2 -#define BCOM_IPR_PSC4_TX 2 -#define BCOM_IPR_I2C2_RX 2 -#define BCOM_IPR_I2C2_TX 2 -#define BCOM_IPR_I2C1_RX 2 -#define BCOM_IPR_I2C1_TX 2 -#define BCOM_IPR_PSC6_RX 2 -#define BCOM_IPR_PSC6_TX 2 -#define BCOM_IPR_IRDA_RX 2 -#define BCOM_IPR_IRDA_TX 2 -#define BCOM_IPR_SCTMR_3 2 -#define BCOM_IPR_SCTMR_4 2 -#define BCOM_IPR_SCTMR_5 2 -#define BCOM_IPR_SCTMR_6 2 -#define BCOM_IPR_SCTMR_7 2 - - -/* ======================================================================== */ -/* API */ -/* ======================================================================== */ - -extern struct bcom_task *bcom_task_alloc(int bd_count, int bd_size, int priv_size); -extern void bcom_task_free(struct bcom_task *tsk); -extern int bcom_load_image(int task, u32 *task_image); -extern void bcom_set_initiator(int task, int initiator); - - -#define TASK_ENABLE 0x8000 - -/** - * bcom_disable_prefetch - Hook to disable bus prefetching - * - * ATA DMA and the original MPC5200 need this due to silicon bugs. At the - * moment disabling prefetch is a one-way street. There is no mechanism - * in place to turn prefetch back on after it has been disabled. There is - * no reason it couldn't be done, it would just be more complex to implement. - */ -static inline void bcom_disable_prefetch(void) -{ - u16 regval; - - regval = in_be16(&bcom_eng->regs->PtdCntrl); - out_be16(&bcom_eng->regs->PtdCntrl, regval | 1); -}; - -static inline void -bcom_enable_task(int task) -{ - u16 reg; - reg = in_be16(&bcom_eng->regs->tcr[task]); - out_be16(&bcom_eng->regs->tcr[task], reg | TASK_ENABLE); -} - -static inline void -bcom_disable_task(int task) -{ - u16 reg = in_be16(&bcom_eng->regs->tcr[task]); - out_be16(&bcom_eng->regs->tcr[task], reg & ~TASK_ENABLE); -} - - -static inline u32 * -bcom_task_desc(int task) -{ - return bcom_sram_pa2va(bcom_eng->tdt[task].start); -} - -static inline int -bcom_task_num_descs(int task) -{ - return (bcom_eng->tdt[task].stop - bcom_eng->tdt[task].start)/sizeof(u32) + 1; -} - -static inline u32 * -bcom_task_var(int task) -{ - return bcom_sram_pa2va(bcom_eng->tdt[task].var); -} - -static inline u32 * -bcom_task_inc(int task) -{ - return &bcom_task_var(task)[BCOM_MAX_VAR]; -} - - -static inline int -bcom_drd_is_extended(u32 desc) -{ - return (desc) & BCOM_DRD_EXTENDED; -} - -static inline int -bcom_desc_is_drd(u32 desc) -{ - return !(desc & BCOM_LCD_MASK) && desc != BCOM_DESC_NOP; -} - -static inline int -bcom_desc_initiator(u32 desc) -{ - return (desc >> BCOM_DRD_INITIATOR_SHIFT) & 0x1f; -} - -static inline void -bcom_set_desc_initiator(u32 *desc, int initiator) -{ - *desc = (*desc & ~(0x1f << BCOM_DRD_INITIATOR_SHIFT)) | - ((initiator & 0x1f) << BCOM_DRD_INITIATOR_SHIFT); -} - - -static inline void -bcom_set_task_pragma(int task, int pragma) -{ - u32 *fdt = &bcom_eng->tdt[task].fdt; - *fdt = (*fdt & ~0xff) | pragma; -} - -static inline void -bcom_set_task_auto_start(int task, int next_task) -{ - u16 __iomem *tcr = &bcom_eng->regs->tcr[task]; - out_be16(tcr, (in_be16(tcr) & ~0xff) | 0x00c0 | next_task); -} - -static inline void -bcom_set_tcr_initiator(int task, int initiator) -{ - u16 __iomem *tcr = &bcom_eng->regs->tcr[task]; - out_be16(tcr, (in_be16(tcr) & ~0x1f00) | ((initiator & 0x1f) << 8)); -} - - -#endif /* __BESTCOMM_PRIV_H__ */ - diff --git a/arch/powerpc/sysdev/bestcomm/fec.c b/arch/powerpc/sysdev/bestcomm/fec.c deleted file mode 100644 index 957a988..0000000 --- a/arch/powerpc/sysdev/bestcomm/fec.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Bestcomm FEC tasks driver - * - * - * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2003-2004 MontaVista, Software, Inc. - * ( by Dale Farnsworth <dfarnsworth@mvista.com> ) - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <asm/io.h> - -#include "bestcomm.h" -#include "bestcomm_priv.h" -#include "fec.h" - - -/* ======================================================================== */ -/* Task image/var/inc */ -/* ======================================================================== */ - -/* fec tasks images */ -extern u32 bcom_fec_rx_task[]; -extern u32 bcom_fec_tx_task[]; - -/* rx task vars that need to be set before enabling the task */ -struct bcom_fec_rx_var { - u32 enable; /* (u16*) address of task's control register */ - u32 fifo; /* (u32*) address of fec's fifo */ - u32 bd_base; /* (struct bcom_bd*) beginning of ring buffer */ - u32 bd_last; /* (struct bcom_bd*) end of ring buffer */ - u32 bd_start; /* (struct bcom_bd*) current bd */ - u32 buffer_size; /* size of receive buffer */ -}; - -/* rx task incs that need to be set before enabling the task */ -struct bcom_fec_rx_inc { - u16 pad0; - s16 incr_bytes; - u16 pad1; - s16 incr_dst; - u16 pad2; - s16 incr_dst_ma; -}; - -/* tx task vars that need to be set before enabling the task */ -struct bcom_fec_tx_var { - u32 DRD; /* (u32*) address of self-modified DRD */ - u32 fifo; /* (u32*) address of fec's fifo */ - u32 enable; /* (u16*) address of task's control register */ - u32 bd_base; /* (struct bcom_bd*) beginning of ring buffer */ - u32 bd_last; /* (struct bcom_bd*) end of ring buffer */ - u32 bd_start; /* (struct bcom_bd*) current bd */ - u32 buffer_size; /* set by uCode for each packet */ -}; - -/* tx task incs that need to be set before enabling the task */ -struct bcom_fec_tx_inc { - u16 pad0; - s16 incr_bytes; - u16 pad1; - s16 incr_src; - u16 pad2; - s16 incr_src_ma; -}; - -/* private structure in the task */ -struct bcom_fec_priv { - phys_addr_t fifo; - int maxbufsize; -}; - - -/* ======================================================================== */ -/* Task support code */ -/* ======================================================================== */ - -struct bcom_task * -bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize) -{ - struct bcom_task *tsk; - struct bcom_fec_priv *priv; - - tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd), - sizeof(struct bcom_fec_priv)); - if (!tsk) - return NULL; - - tsk->flags = BCOM_FLAGS_NONE; - - priv = tsk->priv; - priv->fifo = fifo; - priv->maxbufsize = maxbufsize; - - if (bcom_fec_rx_reset(tsk)) { - bcom_task_free(tsk); - return NULL; - } - - return tsk; -} -EXPORT_SYMBOL_GPL(bcom_fec_rx_init); - -int -bcom_fec_rx_reset(struct bcom_task *tsk) -{ - struct bcom_fec_priv *priv = tsk->priv; - struct bcom_fec_rx_var *var; - struct bcom_fec_rx_inc *inc; - - /* Shutdown the task */ - bcom_disable_task(tsk->tasknum); - - /* Reset the microcode */ - var = (struct bcom_fec_rx_var *) bcom_task_var(tsk->tasknum); - inc = (struct bcom_fec_rx_inc *) bcom_task_inc(tsk->tasknum); - - if (bcom_load_image(tsk->tasknum, bcom_fec_rx_task)) - return -1; - - var->enable = bcom_eng->regs_base + - offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]); - var->fifo = (u32) priv->fifo; - var->bd_base = tsk->bd_pa; - var->bd_last = tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size); - var->bd_start = tsk->bd_pa; - var->buffer_size = priv->maxbufsize; - - inc->incr_bytes = -(s16)sizeof(u32); /* These should be in the */ - inc->incr_dst = sizeof(u32); /* task image, but we stick */ - inc->incr_dst_ma= sizeof(u8); /* to the official ones */ - - /* Reset the BDs */ - tsk->index = 0; - tsk->outdex = 0; - - memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size); - - /* Configure some stuff */ - bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_RX_BD_PRAGMA); - bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum); - - out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_RX], BCOM_IPR_FEC_RX); - - out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */ - - return 0; -} -EXPORT_SYMBOL_GPL(bcom_fec_rx_reset); - -void -bcom_fec_rx_release(struct bcom_task *tsk) -{ - /* Nothing special for the FEC tasks */ - bcom_task_free(tsk); -} -EXPORT_SYMBOL_GPL(bcom_fec_rx_release); - - - - /* Return 2nd to last DRD */ - /* This is an ugly hack, but at least it's only done - once at initialization */ -static u32 *self_modified_drd(int tasknum) -{ - u32 *desc; - int num_descs; - int drd_count; - int i; - - num_descs = bcom_task_num_descs(tasknum); - desc = bcom_task_desc(tasknum) + num_descs - 1; - drd_count = 0; - for (i=0; i<num_descs; i++, desc--) - if (bcom_desc_is_drd(*desc) && ++drd_count == 3) - break; - return desc; -} - -struct bcom_task * -bcom_fec_tx_init(int queue_len, phys_addr_t fifo) -{ - struct bcom_task *tsk; - struct bcom_fec_priv *priv; - - tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd), - sizeof(struct bcom_fec_priv)); - if (!tsk) - return NULL; - - tsk->flags = BCOM_FLAGS_ENABLE_TASK; - - priv = tsk->priv; - priv->fifo = fifo; - - if (bcom_fec_tx_reset(tsk)) { - bcom_task_free(tsk); - return NULL; - } - - return tsk; -} -EXPORT_SYMBOL_GPL(bcom_fec_tx_init); - -int -bcom_fec_tx_reset(struct bcom_task *tsk) -{ - struct bcom_fec_priv *priv = tsk->priv; - struct bcom_fec_tx_var *var; - struct bcom_fec_tx_inc *inc; - - /* Shutdown the task */ - bcom_disable_task(tsk->tasknum); - - /* Reset the microcode */ - var = (struct bcom_fec_tx_var *) bcom_task_var(tsk->tasknum); - inc = (struct bcom_fec_tx_inc *) bcom_task_inc(tsk->tasknum); - - if (bcom_load_image(tsk->tasknum, bcom_fec_tx_task)) - return -1; - - var->enable = bcom_eng->regs_base + - offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]); - var->fifo = (u32) priv->fifo; - var->DRD = bcom_sram_va2pa(self_modified_drd(tsk->tasknum)); - var->bd_base = tsk->bd_pa; - var->bd_last = tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size); - var->bd_start = tsk->bd_pa; - - inc->incr_bytes = -(s16)sizeof(u32); /* These should be in the */ - inc->incr_src = sizeof(u32); /* task image, but we stick */ - inc->incr_src_ma= sizeof(u8); /* to the official ones */ - - /* Reset the BDs */ - tsk->index = 0; - tsk->outdex = 0; - - memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size); - - /* Configure some stuff */ - bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_TX_BD_PRAGMA); - bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum); - - out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_TX], BCOM_IPR_FEC_TX); - - out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */ - - return 0; -} -EXPORT_SYMBOL_GPL(bcom_fec_tx_reset); - -void -bcom_fec_tx_release(struct bcom_task *tsk) -{ - /* Nothing special for the FEC tasks */ - bcom_task_free(tsk); -} -EXPORT_SYMBOL_GPL(bcom_fec_tx_release); - - -MODULE_DESCRIPTION("BestComm FEC tasks driver"); -MODULE_AUTHOR("Dale Farnsworth <dfarnsworth@mvista.com>"); -MODULE_LICENSE("GPL v2"); - diff --git a/arch/powerpc/sysdev/bestcomm/fec.h b/arch/powerpc/sysdev/bestcomm/fec.h deleted file mode 100644 index ee565d9..0000000 --- a/arch/powerpc/sysdev/bestcomm/fec.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Header for Bestcomm FEC tasks driver - * - * - * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2003-2004 MontaVista, Software, Inc. - * ( by Dale Farnsworth <dfarnsworth@mvista.com> ) - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __BESTCOMM_FEC_H__ -#define __BESTCOMM_FEC_H__ - - -struct bcom_fec_bd { - u32 status; - u32 skb_pa; -}; - -#define BCOM_FEC_TX_BD_TFD 0x08000000ul /* transmit frame done */ -#define BCOM_FEC_TX_BD_TC 0x04000000ul /* transmit CRC */ -#define BCOM_FEC_TX_BD_ABC 0x02000000ul /* append bad CRC */ - -#define BCOM_FEC_RX_BD_L 0x08000000ul /* buffer is last in frame */ -#define BCOM_FEC_RX_BD_BC 0x00800000ul /* DA is broadcast */ -#define BCOM_FEC_RX_BD_MC 0x00400000ul /* DA is multicast and not broadcast */ -#define BCOM_FEC_RX_BD_LG 0x00200000ul /* Rx frame length violation */ -#define BCOM_FEC_RX_BD_NO 0x00100000ul /* Rx non-octet aligned frame */ -#define BCOM_FEC_RX_BD_CR 0x00040000ul /* Rx CRC error */ -#define BCOM_FEC_RX_BD_OV 0x00020000ul /* overrun */ -#define BCOM_FEC_RX_BD_TR 0x00010000ul /* Rx frame truncated */ -#define BCOM_FEC_RX_BD_LEN_MASK 0x000007fful /* mask for length of received frame */ -#define BCOM_FEC_RX_BD_ERRORS (BCOM_FEC_RX_BD_LG | BCOM_FEC_RX_BD_NO | \ - BCOM_FEC_RX_BD_CR | BCOM_FEC_RX_BD_OV | BCOM_FEC_RX_BD_TR) - - -extern struct bcom_task * -bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize); - -extern int -bcom_fec_rx_reset(struct bcom_task *tsk); - -extern void -bcom_fec_rx_release(struct bcom_task *tsk); - - -extern struct bcom_task * -bcom_fec_tx_init(int queue_len, phys_addr_t fifo); - -extern int -bcom_fec_tx_reset(struct bcom_task *tsk); - -extern void -bcom_fec_tx_release(struct bcom_task *tsk); - - -#endif /* __BESTCOMM_FEC_H__ */ - diff --git a/arch/powerpc/sysdev/bestcomm/gen_bd.c b/arch/powerpc/sysdev/bestcomm/gen_bd.c deleted file mode 100644 index e0a53e3..0000000 --- a/arch/powerpc/sysdev/bestcomm/gen_bd.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - * Driver for MPC52xx processor BestComm General Buffer Descriptor - * - * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2006 AppSpec Computer Technologies Corp. - * Jeff Gibbons <jeff.gibbons@appspec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <asm/errno.h> -#include <asm/io.h> - -#include <asm/mpc52xx.h> -#include <asm/mpc52xx_psc.h> - -#include "bestcomm.h" -#include "bestcomm_priv.h" -#include "gen_bd.h" - - -/* ======================================================================== */ -/* Task image/var/inc */ -/* ======================================================================== */ - -/* gen_bd tasks images */ -extern u32 bcom_gen_bd_rx_task[]; -extern u32 bcom_gen_bd_tx_task[]; - -/* rx task vars that need to be set before enabling the task */ -struct bcom_gen_bd_rx_var { - u32 enable; /* (u16*) address of task's control register */ - u32 fifo; /* (u32*) address of gen_bd's fifo */ - u32 bd_base; /* (struct bcom_bd*) beginning of ring buffer */ - u32 bd_last; /* (struct bcom_bd*) end of ring buffer */ - u32 bd_start; /* (struct bcom_bd*) current bd */ - u32 buffer_size; /* size of receive buffer */ -}; - -/* rx task incs that need to be set before enabling the task */ -struct bcom_gen_bd_rx_inc { - u16 pad0; - s16 incr_bytes; - u16 pad1; - s16 incr_dst; -}; - -/* tx task vars that need to be set before enabling the task */ -struct bcom_gen_bd_tx_var { - u32 fifo; /* (u32*) address of gen_bd's fifo */ - u32 enable; /* (u16*) address of task's control register */ - u32 bd_base; /* (struct bcom_bd*) beginning of ring buffer */ - u32 bd_last; /* (struct bcom_bd*) end of ring buffer */ - u32 bd_start; /* (struct bcom_bd*) current bd */ - u32 buffer_size; /* set by uCode for each packet */ -}; - -/* tx task incs that need to be set before enabling the task */ -struct bcom_gen_bd_tx_inc { - u16 pad0; - s16 incr_bytes; - u16 pad1; - s16 incr_src; - u16 pad2; - s16 incr_src_ma; -}; - -/* private structure */ -struct bcom_gen_bd_priv { - phys_addr_t fifo; - int initiator; - int ipr; - int maxbufsize; -}; - - -/* ======================================================================== */ -/* Task support code */ -/* ======================================================================== */ - -struct bcom_task * -bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo, - int initiator, int ipr, int maxbufsize) -{ - struct bcom_task *tsk; - struct bcom_gen_bd_priv *priv; - - tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_gen_bd), - sizeof(struct bcom_gen_bd_priv)); - if (!tsk) - return NULL; - - tsk->flags = BCOM_FLAGS_NONE; - - priv = tsk->priv; - priv->fifo = fifo; - priv->initiator = initiator; - priv->ipr = ipr; - priv->maxbufsize = maxbufsize; - - if (bcom_gen_bd_rx_reset(tsk)) { - bcom_task_free(tsk); - return NULL; - } - - return tsk; -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_init); - -int -bcom_gen_bd_rx_reset(struct bcom_task *tsk) -{ - struct bcom_gen_bd_priv *priv = tsk->priv; - struct bcom_gen_bd_rx_var *var; - struct bcom_gen_bd_rx_inc *inc; - - /* Shutdown the task */ - bcom_disable_task(tsk->tasknum); - - /* Reset the microcode */ - var = (struct bcom_gen_bd_rx_var *) bcom_task_var(tsk->tasknum); - inc = (struct bcom_gen_bd_rx_inc *) bcom_task_inc(tsk->tasknum); - - if (bcom_load_image(tsk->tasknum, bcom_gen_bd_rx_task)) - return -1; - - var->enable = bcom_eng->regs_base + - offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]); - var->fifo = (u32) priv->fifo; - var->bd_base = tsk->bd_pa; - var->bd_last = tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size); - var->bd_start = tsk->bd_pa; - var->buffer_size = priv->maxbufsize; - - inc->incr_bytes = -(s16)sizeof(u32); - inc->incr_dst = sizeof(u32); - - /* Reset the BDs */ - tsk->index = 0; - tsk->outdex = 0; - - memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size); - - /* Configure some stuff */ - bcom_set_task_pragma(tsk->tasknum, BCOM_GEN_RX_BD_PRAGMA); - bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum); - - out_8(&bcom_eng->regs->ipr[priv->initiator], priv->ipr); - bcom_set_initiator(tsk->tasknum, priv->initiator); - - out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */ - - return 0; -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_reset); - -void -bcom_gen_bd_rx_release(struct bcom_task *tsk) -{ - /* Nothing special for the GenBD tasks */ - bcom_task_free(tsk); -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_rx_release); - - -extern struct bcom_task * -bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo, - int initiator, int ipr) -{ - struct bcom_task *tsk; - struct bcom_gen_bd_priv *priv; - - tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_gen_bd), - sizeof(struct bcom_gen_bd_priv)); - if (!tsk) - return NULL; - - tsk->flags = BCOM_FLAGS_NONE; - - priv = tsk->priv; - priv->fifo = fifo; - priv->initiator = initiator; - priv->ipr = ipr; - - if (bcom_gen_bd_tx_reset(tsk)) { - bcom_task_free(tsk); - return NULL; - } - - return tsk; -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_init); - -int -bcom_gen_bd_tx_reset(struct bcom_task *tsk) -{ - struct bcom_gen_bd_priv *priv = tsk->priv; - struct bcom_gen_bd_tx_var *var; - struct bcom_gen_bd_tx_inc *inc; - - /* Shutdown the task */ - bcom_disable_task(tsk->tasknum); - - /* Reset the microcode */ - var = (struct bcom_gen_bd_tx_var *) bcom_task_var(tsk->tasknum); - inc = (struct bcom_gen_bd_tx_inc *) bcom_task_inc(tsk->tasknum); - - if (bcom_load_image(tsk->tasknum, bcom_gen_bd_tx_task)) - return -1; - - var->enable = bcom_eng->regs_base + - offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]); - var->fifo = (u32) priv->fifo; - var->bd_base = tsk->bd_pa; - var->bd_last = tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size); - var->bd_start = tsk->bd_pa; - - inc->incr_bytes = -(s16)sizeof(u32); - inc->incr_src = sizeof(u32); - inc->incr_src_ma = sizeof(u8); - - /* Reset the BDs */ - tsk->index = 0; - tsk->outdex = 0; - - memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size); - - /* Configure some stuff */ - bcom_set_task_pragma(tsk->tasknum, BCOM_GEN_TX_BD_PRAGMA); - bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum); - - out_8(&bcom_eng->regs->ipr[priv->initiator], priv->ipr); - bcom_set_initiator(tsk->tasknum, priv->initiator); - - out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */ - - return 0; -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_reset); - -void -bcom_gen_bd_tx_release(struct bcom_task *tsk) -{ - /* Nothing special for the GenBD tasks */ - bcom_task_free(tsk); -} -EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_release); - -/* --------------------------------------------------------------------- - * PSC support code - */ - -/** - * bcom_psc_parameters - Bestcomm initialization value table for PSC devices - * - * This structure is only used internally. It is a lookup table for PSC - * specific parameters to bestcomm tasks. - */ -static struct bcom_psc_params { - int rx_initiator; - int rx_ipr; - int tx_initiator; - int tx_ipr; -} bcom_psc_params[] = { - [0] = { - .rx_initiator = BCOM_INITIATOR_PSC1_RX, - .rx_ipr = BCOM_IPR_PSC1_RX, - .tx_initiator = BCOM_INITIATOR_PSC1_TX, - .tx_ipr = BCOM_IPR_PSC1_TX, - }, - [1] = { - .rx_initiator = BCOM_INITIATOR_PSC2_RX, - .rx_ipr = BCOM_IPR_PSC2_RX, - .tx_initiator = BCOM_INITIATOR_PSC2_TX, - .tx_ipr = BCOM_IPR_PSC2_TX, - }, - [2] = { - .rx_initiator = BCOM_INITIATOR_PSC3_RX, - .rx_ipr = BCOM_IPR_PSC3_RX, - .tx_initiator = BCOM_INITIATOR_PSC3_TX, - .tx_ipr = BCOM_IPR_PSC3_TX, - }, - [3] = { - .rx_initiator = BCOM_INITIATOR_PSC4_RX, - .rx_ipr = BCOM_IPR_PSC4_RX, - .tx_initiator = BCOM_INITIATOR_PSC4_TX, - .tx_ipr = BCOM_IPR_PSC4_TX, - }, - [4] = { - .rx_initiator = BCOM_INITIATOR_PSC5_RX, - .rx_ipr = BCOM_IPR_PSC5_RX, - .tx_initiator = BCOM_INITIATOR_PSC5_TX, - .tx_ipr = BCOM_IPR_PSC5_TX, - }, - [5] = { - .rx_initiator = BCOM_INITIATOR_PSC6_RX, - .rx_ipr = BCOM_IPR_PSC6_RX, - .tx_initiator = BCOM_INITIATOR_PSC6_TX, - .tx_ipr = BCOM_IPR_PSC6_TX, - }, -}; - -/** - * bcom_psc_gen_bd_rx_init - Allocate a receive bcom_task for a PSC port - * @psc_num: Number of the PSC to allocate a task for - * @queue_len: number of buffer descriptors to allocate for the task - * @fifo: physical address of FIFO register - * @maxbufsize: Maximum receive data size in bytes. - * - * Allocate a bestcomm task structure for receiving data from a PSC. - */ -struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len, - phys_addr_t fifo, int maxbufsize) -{ - if (psc_num >= MPC52xx_PSC_MAXNUM) - return NULL; - - return bcom_gen_bd_rx_init(queue_len, fifo, - bcom_psc_params[psc_num].rx_initiator, - bcom_psc_params[psc_num].rx_ipr, - maxbufsize); -} -EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_rx_init); - -/** - * bcom_psc_gen_bd_tx_init - Allocate a transmit bcom_task for a PSC port - * @psc_num: Number of the PSC to allocate a task for - * @queue_len: number of buffer descriptors to allocate for the task - * @fifo: physical address of FIFO register - * - * Allocate a bestcomm task structure for transmitting data to a PSC. - */ -struct bcom_task * -bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len, phys_addr_t fifo) -{ - struct psc; - return bcom_gen_bd_tx_init(queue_len, fifo, - bcom_psc_params[psc_num].tx_initiator, - bcom_psc_params[psc_num].tx_ipr); -} -EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_tx_init); - - -MODULE_DESCRIPTION("BestComm General Buffer Descriptor tasks driver"); -MODULE_AUTHOR("Jeff Gibbons <jeff.gibbons@appspec.com>"); -MODULE_LICENSE("GPL v2"); - diff --git a/arch/powerpc/sysdev/bestcomm/gen_bd.h b/arch/powerpc/sysdev/bestcomm/gen_bd.h deleted file mode 100644 index de47260..0000000 --- a/arch/powerpc/sysdev/bestcomm/gen_bd.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Header for Bestcomm General Buffer Descriptor tasks driver - * - * - * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2006 AppSpec Computer Technologies Corp. - * Jeff Gibbons <jeff.gibbons@appspec.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * - */ - -#ifndef __BESTCOMM_GEN_BD_H__ -#define __BESTCOMM_GEN_BD_H__ - -struct bcom_gen_bd { - u32 status; - u32 buf_pa; -}; - - -extern struct bcom_task * -bcom_gen_bd_rx_init(int queue_len, phys_addr_t fifo, - int initiator, int ipr, int maxbufsize); - -extern int -bcom_gen_bd_rx_reset(struct bcom_task *tsk); - -extern void -bcom_gen_bd_rx_release(struct bcom_task *tsk); - - -extern struct bcom_task * -bcom_gen_bd_tx_init(int queue_len, phys_addr_t fifo, - int initiator, int ipr); - -extern int -bcom_gen_bd_tx_reset(struct bcom_task *tsk); - -extern void -bcom_gen_bd_tx_release(struct bcom_task *tsk); - - -/* PSC support utility wrappers */ -struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len, - phys_addr_t fifo, int maxbufsize); -struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len, - phys_addr_t fifo); -#endif /* __BESTCOMM_GEN_BD_H__ */ - diff --git a/arch/powerpc/sysdev/bestcomm/sram.c b/arch/powerpc/sysdev/bestcomm/sram.c deleted file mode 100644 index b6db23e..0000000 --- a/arch/powerpc/sysdev/bestcomm/sram.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Simple memory allocator for on-board SRAM - * - * - * Maintainer : Sylvain Munaut <tnt@246tNt.com> - * - * Copyright (C) 2005 Sylvain Munaut <tnt@246tNt.com> - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include <linux/err.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/of.h> - -#include <asm/io.h> -#include <asm/mmu.h> - -#include "sram.h" - - -/* Struct keeping our 'state' */ -struct bcom_sram *bcom_sram = NULL; -EXPORT_SYMBOL_GPL(bcom_sram); /* needed for inline functions */ - - -/* ======================================================================== */ -/* Public API */ -/* ======================================================================== */ -/* DO NOT USE in interrupts, if needed in irq handler, we should use the - _irqsave version of the spin_locks */ - -int bcom_sram_init(struct device_node *sram_node, char *owner) -{ - int rv; - const u32 *regaddr_p; - u64 regaddr64, size64; - unsigned int psize; - - /* Create our state struct */ - if (bcom_sram) { - printk(KERN_ERR "%s: bcom_sram_init: " - "Already initialized !\n", owner); - return -EBUSY; - } - - bcom_sram = kmalloc(sizeof(struct bcom_sram), GFP_KERNEL); - if (!bcom_sram) { - printk(KERN_ERR "%s: bcom_sram_init: " - "Couldn't allocate internal state !\n", owner); - return -ENOMEM; - } - - /* Get address and size of the sram */ - regaddr_p = of_get_address(sram_node, 0, &size64, NULL); - if (!regaddr_p) { - printk(KERN_ERR "%s: bcom_sram_init: " - "Invalid device node !\n", owner); - rv = -EINVAL; - goto error_free; - } - - regaddr64 = of_translate_address(sram_node, regaddr_p); - - bcom_sram->base_phys = (phys_addr_t) regaddr64; - bcom_sram->size = (unsigned int) size64; - - /* Request region */ - if (!request_mem_region(bcom_sram->base_phys, bcom_sram->size, owner)) { - printk(KERN_ERR "%s: bcom_sram_init: " - "Couldn't request region !\n", owner); - rv = -EBUSY; - goto error_free; - } - - /* Map SRAM */ - /* sram is not really __iomem */ - bcom_sram->base_virt = (void*) ioremap(bcom_sram->base_phys, bcom_sram->size); - - if (!bcom_sram->base_virt) { - printk(KERN_ERR "%s: bcom_sram_init: " - "Map error SRAM zone 0x%08lx (0x%0x)!\n", - owner, (long)bcom_sram->base_phys, bcom_sram->size ); - rv = -ENOMEM; - goto error_release; - } - - /* Create an rheap (defaults to 32 bits word alignment) */ - bcom_sram->rh = rh_create(4); - - /* Attach the free zones */ -#if 0 - /* Currently disabled ... for future use only */ - reg_addr_p = of_get_property(sram_node, "available", &psize); -#else - regaddr_p = NULL; - psize = 0; -#endif - - if (!regaddr_p || !psize) { - /* Attach the whole zone */ - rh_attach_region(bcom_sram->rh, 0, bcom_sram->size); - } else { - /* Attach each zone independently */ - while (psize >= 2 * sizeof(u32)) { - phys_addr_t zbase = of_translate_address(sram_node, regaddr_p); - rh_attach_region(bcom_sram->rh, zbase - bcom_sram->base_phys, regaddr_p[1]); - regaddr_p += 2; - psize -= 2 * sizeof(u32); - } - } - - /* Init our spinlock */ - spin_lock_init(&bcom_sram->lock); - - return 0; - -error_release: - release_mem_region(bcom_sram->base_phys, bcom_sram->size); -error_free: - kfree(bcom_sram); - bcom_sram = NULL; - - return rv; -} -EXPORT_SYMBOL_GPL(bcom_sram_init); - -void bcom_sram_cleanup(void) -{ - /* Free resources */ - if (bcom_sram) { - rh_destroy(bcom_sram->rh); - iounmap((void __iomem *)bcom_sram->base_virt); - release_mem_region(bcom_sram->base_phys, bcom_sram->size); - kfree(bcom_sram); - bcom_sram = NULL; - } -} -EXPORT_SYMBOL_GPL(bcom_sram_cleanup); - -void* bcom_sram_alloc(int size, int align, phys_addr_t *phys) -{ - unsigned long offset; - - spin_lock(&bcom_sram->lock); - offset = rh_alloc_align(bcom_sram->rh, size, align, NULL); - spin_unlock(&bcom_sram->lock); - - if (IS_ERR_VALUE(offset)) - return NULL; - - *phys = bcom_sram->base_phys + offset; - return bcom_sram->base_virt + offset; -} -EXPORT_SYMBOL_GPL(bcom_sram_alloc); - -void bcom_sram_free(void *ptr) -{ - unsigned long offset; - - if (!ptr) - return; - - offset = ptr - bcom_sram->base_virt; - - spin_lock(&bcom_sram->lock); - rh_free(bcom_sram->rh, offset); - spin_unlock(&bcom_sram->lock); -} -EXPORT_SYMBOL_GPL(bcom_sram_free); - diff --git a/arch/powerpc/sysdev/bestcomm/sram.h b/arch/powerpc/sysdev/bestcomm/sram.h deleted file mode 100644 index b6d6689..0000000 --- a/arch/powerpc/sysdev/bestcomm/sram.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Handling of a sram zone for bestcomm - * - * - * Copyright (C) 2007 Sylvain Munaut <tnt@246tNt.com> - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __BESTCOMM_SRAM_H__ -#define __BESTCOMM_SRAM_H__ - -#include <asm/rheap.h> -#include <asm/mmu.h> -#include <linux/spinlock.h> - - -/* Structure used internally */ - /* The internals are here for the inline functions - * sake, certainly not for the user to mess with ! - */ -struct bcom_sram { - phys_addr_t base_phys; - void *base_virt; - unsigned int size; - rh_info_t *rh; - spinlock_t lock; -}; - -extern struct bcom_sram *bcom_sram; - - -/* Public API */ -extern int bcom_sram_init(struct device_node *sram_node, char *owner); -extern void bcom_sram_cleanup(void); - -extern void* bcom_sram_alloc(int size, int align, phys_addr_t *phys); -extern void bcom_sram_free(void *ptr); - -static inline phys_addr_t bcom_sram_va2pa(void *va) { - return bcom_sram->base_phys + - (unsigned long)(va - bcom_sram->base_virt); -} - -static inline void *bcom_sram_pa2va(phys_addr_t pa) { - return bcom_sram->base_virt + - (unsigned long)(pa - bcom_sram->base_phys); -} - - -#endif /* __BESTCOMM_SRAM_H__ */ - diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c index 6e0e100..9cd0e60 100644 --- a/arch/powerpc/sysdev/ehv_pic.c +++ b/arch/powerpc/sysdev/ehv_pic.c @@ -81,7 +81,7 @@ int ehv_pic_set_affinity(struct irq_data *d, const struct cpumask *dest, ev_int_set_config(src, config, prio, cpuid); spin_unlock_irqrestore(&ehv_pic_lock, flags); - return 0; + return IRQ_SET_MASK_OK; } static unsigned int ehv_pic_type_to_vecpri(unsigned int type) diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index b29a4ab..b346247 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -442,6 +442,8 @@ static int fsl_of_msi_remove(struct platform_device *ofdev) return 0; } +static struct lock_class_key fsl_msi_irq_class; + static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev, int offset, int irq_index) { @@ -460,7 +462,7 @@ static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev, dev_err(&dev->dev, "No memory for MSI cascade data\n"); return -ENOMEM; } - + irq_set_lockdep_class(virt_msir, &fsl_msi_irq_class); msi->msi_virqs[irq_index] = virt_msir; cascade_data->index = offset; cascade_data->msi_data = msi; diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index d213c83..74064e1 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -102,22 +102,14 @@ static int fsl_indirect_read_config(struct pci_bus *bus, unsigned int devfn, return indirect_read_config(bus, devfn, offset, len, val); } -static struct pci_ops fsl_indirect_pci_ops = +#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) + +static struct pci_ops fsl_indirect_pcie_ops = { .read = fsl_indirect_read_config, .write = indirect_write_config, }; -static void __init fsl_setup_indirect_pci(struct pci_controller* hose, - resource_size_t cfg_addr, - resource_size_t cfg_data, u32 flags) -{ - setup_indirect_pci(hose, cfg_addr, cfg_data, flags); - hose->ops = &fsl_indirect_pci_ops; -} - -#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) - #define MAX_PHYS_ADDR_BITS 40 static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS; @@ -158,7 +150,7 @@ static int setup_one_atmu(struct ccsr_pci __iomem *pci, flags |= 0x10000000; /* enable relaxed ordering */ for (i = 0; size > 0; i++) { - unsigned int bits = min(__ilog2_u64(size), + unsigned int bits = min(ilog2(size), __ffs(pci_addr | phys_addr)); if (index + i >= 5) @@ -183,7 +175,7 @@ static void setup_pci_atmu(struct pci_controller *hose) struct ccsr_pci __iomem *pci = hose->private_data; int i, j, n, mem_log, win_idx = 3, start_idx = 1, end_idx = 4; u64 mem, sz, paddr_hi = 0; - u64 paddr_lo = ULLONG_MAX; + u64 offset = 0, paddr_lo = ULLONG_MAX; u32 pcicsrbar = 0, pcicsrbar_sz; u32 piwar = PIWAR_EN | PIWAR_PF | PIWAR_TGI_LOCAL | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; @@ -246,8 +238,9 @@ static void setup_pci_atmu(struct pci_controller *hose) paddr_lo = min(paddr_lo, (u64)hose->mem_resources[i].start); paddr_hi = max(paddr_hi, (u64)hose->mem_resources[i].end); - n = setup_one_atmu(pci, j, &hose->mem_resources[i], - hose->pci_mem_offset); + /* We assume all memory resources have the same offset */ + offset = hose->mem_offset[i]; + n = setup_one_atmu(pci, j, &hose->mem_resources[i], offset); if (n < 0 || j >= 5) { pr_err("Ran out of outbound PCI ATMUs for resource %d!\n", i); @@ -271,14 +264,14 @@ static void setup_pci_atmu(struct pci_controller *hose) out_be32(&pci->pow[j].powbar, (hose->io_base_phys >> 12)); /* Enable, IO R/W */ out_be32(&pci->pow[j].powar, 0x80088000 - | (__ilog2_u64(hose->io_resource.end + | (ilog2(hose->io_resource.end - hose->io_resource.start + 1) - 1)); } } /* convert to pci address space */ - paddr_hi -= hose->pci_mem_offset; - paddr_lo -= hose->pci_mem_offset; + paddr_hi -= offset; + paddr_lo -= offset; if (paddr_hi == paddr_lo) { pr_err("%s: No outbound window space\n", name); @@ -336,7 +329,7 @@ static void setup_pci_atmu(struct pci_controller *hose) } sz = min(mem, paddr_lo); - mem_log = __ilog2_u64(sz); + mem_log = ilog2(sz); /* PCIe can overmap inbound & outbound since RX & TX are separated */ #ifdef CONFIG_PPC_QEMU_E500 @@ -369,7 +362,7 @@ static void setup_pci_atmu(struct pci_controller *hose) * SWIOTLB and access the full range of memory */ if (sz != mem) { - mem_log = __ilog2_u64(mem); + mem_log = ilog2(mem); /* Size window up if we dont fit in exact power-of-2 */ if ((1ull << mem_log) != mem) @@ -406,7 +399,7 @@ static void setup_pci_atmu(struct pci_controller *hose) sz -= 1ull << mem_log; if (sz) { - mem_log = __ilog2_u64(sz); + mem_log = ilog2(sz); piwar |= (mem_log - 1); out_be32(&pci->piw[win_idx].pitar, paddr >> 12); @@ -547,13 +540,15 @@ int __init fsl_add_bridge(struct platform_device *pdev, int is_primary) if (!hose->private_data) goto no_bridge; - fsl_setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4, - PPC_INDIRECT_TYPE_BIG_ENDIAN); + setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4, + PPC_INDIRECT_TYPE_BIG_ENDIAN); if (in_be32(&pci->block_rev1) < PCIE_IP_REV_3_0) hose->indirect_type |= PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK; if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { + /* use fsl_indirect_read_config for PCIe */ + hose->ops = &fsl_indirect_pcie_ops; /* For PCIE read HEADER_TYPE to identify controler mode */ early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type); if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) diff --git a/arch/powerpc/sysdev/mpc5xxx_clocks.c b/arch/powerpc/sysdev/mpc5xxx_clocks.c index 96f815a..5492dc5 100644 --- a/arch/powerpc/sysdev/mpc5xxx_clocks.c +++ b/arch/powerpc/sysdev/mpc5xxx_clocks.c @@ -9,9 +9,9 @@ #include <linux/kernel.h> #include <linux/of_platform.h> #include <linux/export.h> +#include <asm/mpc5xxx.h> -unsigned int -mpc5xxx_get_bus_frequency(struct device_node *node) +unsigned long mpc5xxx_get_bus_frequency(struct device_node *node) { struct device_node *np; const unsigned int *p_bus_freq = NULL; diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index c8e41c0..e500517 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -836,7 +836,7 @@ int mpic_set_affinity(struct irq_data *d, const struct cpumask *cpumask, mpic_physmask(mask)); } - return 0; + return IRQ_SET_MASK_OK; } static unsigned int mpic_type_to_vecpri(struct mpic *mpic, unsigned int type) @@ -1016,8 +1016,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, if (hw == mpic->spurious_vec) return -EINVAL; - if (mpic->protected && test_bit(hw, mpic->protected)) - return -EINVAL; + if (mpic->protected && test_bit(hw, mpic->protected)) { + pr_warning("mpic: Mapping of source 0x%x failed, " + "source protected by firmware !\n",\ + (unsigned int)hw); + return -EPERM; + } #ifdef CONFIG_SMP else if (hw >= mpic->ipi_vecs[0]) { @@ -1044,8 +1048,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, if (mpic_map_error_int(mpic, virq, hw)) return 0; - if (hw >= mpic->num_sources) + if (hw >= mpic->num_sources) { + pr_warning("mpic: Mapping of source 0x%x failed, " + "source out of range !\n",\ + (unsigned int)hw); return -EINVAL; + } mpic_msi_reserve_hwirq(mpic, hw); diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c index 0f6af41..4a25c26 100644 --- a/arch/powerpc/sysdev/mv64x60_dev.c +++ b/arch/powerpc/sysdev/mv64x60_dev.c @@ -214,15 +214,27 @@ static struct platform_device * __init mv64x60_eth_register_shared_pdev( struct device_node *np, int id) { struct platform_device *pdev; - struct resource r[1]; + struct resource r[2]; int err; err = of_address_to_resource(np, 0, &r[0]); if (err) return ERR_PTR(err); + /* register an orion mdio bus driver */ + r[1].start = r[0].start + 0x4; + r[1].end = r[0].start + 0x84 - 1; + r[1].flags = IORESOURCE_MEM; + + if (id == 0) { + pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1); + if (!pdev) + return pdev; + } + pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id, - r, 1); + &r[0], 1); + return pdev; } diff --git a/arch/powerpc/sysdev/ppc4xx_ocm.c b/arch/powerpc/sysdev/ppc4xx_ocm.c new file mode 100644 index 0000000..1b15f93 --- /dev/null +++ b/arch/powerpc/sysdev/ppc4xx_ocm.c @@ -0,0 +1,415 @@ +/* + * PowerPC 4xx OCM memory allocation support + * + * (C) Copyright 2009, Applied Micro Circuits Corporation + * Victor Gallardo (vgallardo@amcc.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/of.h> +#include <asm/rheap.h> +#include <asm/ppc4xx_ocm.h> +#include <linux/slab.h> +#include <linux/debugfs.h> + +#define OCM_DISABLED 0 +#define OCM_ENABLED 1 + +struct ocm_block { + struct list_head list; + void __iomem *addr; + int size; + const char *owner; +}; + +/* non-cached or cached region */ +struct ocm_region { + phys_addr_t phys; + void __iomem *virt; + + int memtotal; + int memfree; + + rh_info_t *rh; + struct list_head list; +}; + +struct ocm_info { + int index; + int status; + int ready; + + phys_addr_t phys; + + int alignment; + int memtotal; + int cache_size; + + struct ocm_region nc; /* non-cached region */ + struct ocm_region c; /* cached region */ +}; + +static struct ocm_info *ocm_nodes; +static int ocm_count; + +static struct ocm_info *ocm_get_node(unsigned int index) +{ + if (index >= ocm_count) { + printk(KERN_ERR "PPC4XX OCM: invalid index"); + return NULL; + } + + return &ocm_nodes[index]; +} + +static int ocm_free_region(struct ocm_region *ocm_reg, const void *addr) +{ + struct ocm_block *blk, *tmp; + unsigned long offset; + + if (!ocm_reg->virt) + return 0; + + list_for_each_entry_safe(blk, tmp, &ocm_reg->list, list) { + if (blk->addr == addr) { + offset = addr - ocm_reg->virt; + ocm_reg->memfree += blk->size; + rh_free(ocm_reg->rh, offset); + list_del(&blk->list); + kfree(blk); + return 1; + } + } + + return 0; +} + +static void __init ocm_init_node(int count, struct device_node *node) +{ + struct ocm_info *ocm; + + const unsigned int *cell_index; + const unsigned int *cache_size; + int len; + + struct resource rsrc; + int ioflags; + + ocm = ocm_get_node(count); + + cell_index = of_get_property(node, "cell-index", &len); + if (!cell_index) { + printk(KERN_ERR "PPC4XX OCM: missing cell-index property"); + return; + } + ocm->index = *cell_index; + + if (of_device_is_available(node)) + ocm->status = OCM_ENABLED; + + cache_size = of_get_property(node, "cached-region-size", &len); + if (cache_size) + ocm->cache_size = *cache_size; + + if (of_address_to_resource(node, 0, &rsrc)) { + printk(KERN_ERR "PPC4XX OCM%d: could not get resource address\n", + ocm->index); + return; + } + + ocm->phys = rsrc.start; + ocm->memtotal = (rsrc.end - rsrc.start + 1); + + printk(KERN_INFO "PPC4XX OCM%d: %d Bytes (%s)\n", + ocm->index, ocm->memtotal, + (ocm->status == OCM_DISABLED) ? "disabled" : "enabled"); + + if (ocm->status == OCM_DISABLED) + return; + + /* request region */ + + if (!request_mem_region(ocm->phys, ocm->memtotal, "ppc4xx_ocm")) { + printk(KERN_ERR "PPC4XX OCM%d: could not request region\n", + ocm->index); + return; + } + + /* Configure non-cached and cached regions */ + + ocm->nc.phys = ocm->phys; + ocm->nc.memtotal = ocm->memtotal - ocm->cache_size; + ocm->nc.memfree = ocm->nc.memtotal; + + ocm->c.phys = ocm->phys + ocm->nc.memtotal; + ocm->c.memtotal = ocm->cache_size; + ocm->c.memfree = ocm->c.memtotal; + + if (ocm->nc.memtotal == 0) + ocm->nc.phys = 0; + + if (ocm->c.memtotal == 0) + ocm->c.phys = 0; + + printk(KERN_INFO "PPC4XX OCM%d: %d Bytes (non-cached)\n", + ocm->index, ocm->nc.memtotal); + + printk(KERN_INFO "PPC4XX OCM%d: %d Bytes (cached)\n", + ocm->index, ocm->c.memtotal); + + /* ioremap the non-cached region */ + if (ocm->nc.memtotal) { + ioflags = _PAGE_NO_CACHE | _PAGE_GUARDED | _PAGE_EXEC; + ocm->nc.virt = __ioremap(ocm->nc.phys, ocm->nc.memtotal, + ioflags); + + if (!ocm->nc.virt) { + printk(KERN_ERR + "PPC4XX OCM%d: failed to ioremap non-cached memory\n", + ocm->index); + ocm->nc.memfree = 0; + return; + } + } + + /* ioremap the cached region */ + + if (ocm->c.memtotal) { + ioflags = _PAGE_EXEC; + ocm->c.virt = __ioremap(ocm->c.phys, ocm->c.memtotal, + ioflags); + + if (!ocm->c.virt) { + printk(KERN_ERR + "PPC4XX OCM%d: failed to ioremap cached memory\n", + ocm->index); + ocm->c.memfree = 0; + return; + } + } + + /* Create Remote Heaps */ + + ocm->alignment = 4; /* default 4 byte alignment */ + + if (ocm->nc.virt) { + ocm->nc.rh = rh_create(ocm->alignment); + rh_attach_region(ocm->nc.rh, 0, ocm->nc.memtotal); + } + + if (ocm->c.virt) { + ocm->c.rh = rh_create(ocm->alignment); + rh_attach_region(ocm->c.rh, 0, ocm->c.memtotal); + } + + INIT_LIST_HEAD(&ocm->nc.list); + INIT_LIST_HEAD(&ocm->c.list); + + ocm->ready = 1; + + return; +} + +static int ocm_debugfs_show(struct seq_file *m, void *v) +{ + struct ocm_block *blk, *tmp; + unsigned int i; + + for (i = 0; i < ocm_count; i++) { + struct ocm_info *ocm = ocm_get_node(i); + + if (!ocm || !ocm->ready) + continue; + + seq_printf(m, "PPC4XX OCM : %d\n", ocm->index); + seq_printf(m, "PhysAddr : 0x%llx\n", ocm->phys); + seq_printf(m, "MemTotal : %d Bytes\n", ocm->memtotal); + seq_printf(m, "MemTotal(NC) : %d Bytes\n", ocm->nc.memtotal); + seq_printf(m, "MemTotal(C) : %d Bytes\n", ocm->c.memtotal); + + seq_printf(m, "\n"); + + seq_printf(m, "NC.PhysAddr : 0x%llx\n", ocm->nc.phys); + seq_printf(m, "NC.VirtAddr : 0x%p\n", ocm->nc.virt); + seq_printf(m, "NC.MemTotal : %d Bytes\n", ocm->nc.memtotal); + seq_printf(m, "NC.MemFree : %d Bytes\n", ocm->nc.memfree); + + list_for_each_entry_safe(blk, tmp, &ocm->nc.list, list) { + seq_printf(m, "NC.MemUsed : %d Bytes (%s)\n", + blk->size, blk->owner); + } + + seq_printf(m, "\n"); + + seq_printf(m, "C.PhysAddr : 0x%llx\n", ocm->c.phys); + seq_printf(m, "C.VirtAddr : 0x%p\n", ocm->c.virt); + seq_printf(m, "C.MemTotal : %d Bytes\n", ocm->c.memtotal); + seq_printf(m, "C.MemFree : %d Bytes\n", ocm->c.memfree); + + list_for_each_entry_safe(blk, tmp, &ocm->c.list, list) { + seq_printf(m, "C.MemUsed : %d Bytes (%s)\n", + blk->size, blk->owner); + } + + seq_printf(m, "\n"); + } + + return 0; +} + +static int ocm_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, ocm_debugfs_show, NULL); +} + +static const struct file_operations ocm_debugfs_fops = { + .open = ocm_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int ocm_debugfs_init(void) +{ + struct dentry *junk; + + junk = debugfs_create_dir("ppc4xx_ocm", 0); + if (!junk) { + printk(KERN_ALERT "debugfs ppc4xx ocm: failed to create dir\n"); + return -1; + } + + if (debugfs_create_file("info", 0644, junk, NULL, &ocm_debugfs_fops)) { + printk(KERN_ALERT "debugfs ppc4xx ocm: failed to create file\n"); + return -1; + } + + return 0; +} + +void *ppc4xx_ocm_alloc(phys_addr_t *phys, int size, int align, + int flags, const char *owner) +{ + void __iomem *addr = NULL; + unsigned long offset; + struct ocm_info *ocm; + struct ocm_region *ocm_reg; + struct ocm_block *ocm_blk; + int i; + + for (i = 0; i < ocm_count; i++) { + ocm = ocm_get_node(i); + + if (!ocm || !ocm->ready) + continue; + + if (flags == PPC4XX_OCM_NON_CACHED) + ocm_reg = &ocm->nc; + else + ocm_reg = &ocm->c; + + if (!ocm_reg->virt) + continue; + + if (align < ocm->alignment) + align = ocm->alignment; + + offset = rh_alloc_align(ocm_reg->rh, size, align, NULL); + + if (IS_ERR_VALUE(offset)) + continue; + + ocm_blk = kzalloc(sizeof(struct ocm_block *), GFP_KERNEL); + if (!ocm_blk) { + printk(KERN_ERR "PPC4XX OCM: could not allocate ocm block"); + rh_free(ocm_reg->rh, offset); + break; + } + + *phys = ocm_reg->phys + offset; + addr = ocm_reg->virt + offset; + size = ALIGN(size, align); + + ocm_blk->addr = addr; + ocm_blk->size = size; + ocm_blk->owner = owner; + list_add_tail(&ocm_blk->list, &ocm_reg->list); + + ocm_reg->memfree -= size; + + break; + } + + return addr; +} + +void ppc4xx_ocm_free(const void *addr) +{ + int i; + + if (!addr) + return; + + for (i = 0; i < ocm_count; i++) { + struct ocm_info *ocm = ocm_get_node(i); + + if (!ocm || !ocm->ready) + continue; + + if (ocm_free_region(&ocm->nc, addr) || + ocm_free_region(&ocm->c, addr)) + return; + } +} + +static int __init ppc4xx_ocm_init(void) +{ + struct device_node *np; + int count; + + count = 0; + for_each_compatible_node(np, NULL, "ibm,ocm") + count++; + + if (!count) + return 0; + + ocm_nodes = kzalloc((count * sizeof(struct ocm_info)), GFP_KERNEL); + if (!ocm_nodes) { + printk(KERN_ERR "PPC4XX OCM: failed to allocate OCM nodes!\n"); + return -ENOMEM; + } + + ocm_count = count; + count = 0; + + for_each_compatible_node(np, NULL, "ibm,ocm") { + ocm_init_node(count, np); + count++; + } + + ocm_debugfs_init(); + + return 0; +} + +arch_initcall(ppc4xx_ocm_init); diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index 56e8b3c..64603a1 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -257,6 +257,7 @@ static void __init ppc4xx_configure_pci_PMMs(struct pci_controller *hose, /* Setup outbound memory windows */ for (i = j = 0; i < 3; i++) { struct resource *res = &hose->mem_resources[i]; + resource_size_t offset = hose->mem_offset[i]; /* we only care about memory windows */ if (!(res->flags & IORESOURCE_MEM)) @@ -270,7 +271,7 @@ static void __init ppc4xx_configure_pci_PMMs(struct pci_controller *hose, /* Configure the resource */ if (ppc4xx_setup_one_pci_PMM(hose, reg, res->start, - res->start - hose->pci_mem_offset, + res->start - offset, resource_size(res), res->flags, j) == 0) { @@ -279,7 +280,7 @@ static void __init ppc4xx_configure_pci_PMMs(struct pci_controller *hose, /* If the resource PCI address is 0 then we have our * ISA memory hole */ - if (res->start == hose->pci_mem_offset) + if (res->start == offset) found_isa_hole = 1; } } @@ -457,6 +458,7 @@ static void __init ppc4xx_configure_pcix_POMs(struct pci_controller *hose, /* Setup outbound memory windows */ for (i = j = 0; i < 3; i++) { struct resource *res = &hose->mem_resources[i]; + resource_size_t offset = hose->mem_offset[i]; /* we only care about memory windows */ if (!(res->flags & IORESOURCE_MEM)) @@ -470,7 +472,7 @@ static void __init ppc4xx_configure_pcix_POMs(struct pci_controller *hose, /* Configure the resource */ if (ppc4xx_setup_one_pcix_POM(hose, reg, res->start, - res->start - hose->pci_mem_offset, + res->start - offset, resource_size(res), res->flags, j) == 0) { @@ -479,7 +481,7 @@ static void __init ppc4xx_configure_pcix_POMs(struct pci_controller *hose, /* If the resource PCI address is 0 then we have our * ISA memory hole */ - if (res->start == hose->pci_mem_offset) + if (res->start == offset) found_isa_hole = 1; } } @@ -1792,6 +1794,7 @@ static void __init ppc4xx_configure_pciex_POMs(struct ppc4xx_pciex_port *port, /* Setup outbound memory windows */ for (i = j = 0; i < 3; i++) { struct resource *res = &hose->mem_resources[i]; + resource_size_t offset = hose->mem_offset[i]; /* we only care about memory windows */ if (!(res->flags & IORESOURCE_MEM)) @@ -1805,7 +1808,7 @@ static void __init ppc4xx_configure_pciex_POMs(struct ppc4xx_pciex_port *port, /* Configure the resource */ if (ppc4xx_setup_one_pciex_POM(port, hose, mbase, res->start, - res->start - hose->pci_mem_offset, + res->start - offset, resource_size(res), res->flags, j) == 0) { @@ -1814,7 +1817,7 @@ static void __init ppc4xx_configure_pciex_POMs(struct ppc4xx_pciex_port *port, /* If the resource PCI address is 0 then we have our * ISA memory hole */ - if (res->start == hose->pci_mem_offset) + if (res->start == offset) found_isa_hole = 1; } } diff --git a/arch/powerpc/sysdev/rtc_cmos_setup.c b/arch/powerpc/sysdev/rtc_cmos_setup.c index 9afba92..af79e1e 100644 --- a/arch/powerpc/sysdev/rtc_cmos_setup.c +++ b/arch/powerpc/sysdev/rtc_cmos_setup.c @@ -62,10 +62,7 @@ static int __init add_rtc(void) pd = platform_device_register_simple("rtc_cmos", -1, &res[0], num_res); - if (IS_ERR(pd)) - return PTR_ERR(pd); - - return 0; + return PTR_RET(pd); } fs_initcall(add_rtc); diff --git a/arch/powerpc/sysdev/udbg_memcons.c b/arch/powerpc/sysdev/udbg_memcons.c new file mode 100644 index 0000000..ce5a7b4 --- /dev/null +++ b/arch/powerpc/sysdev/udbg_memcons.c @@ -0,0 +1,105 @@ +/* + * A udbg backend which logs messages and reads input from in memory + * buffers. + * + * The console output can be read from memcons_output which is a + * circular buffer whose next write position is stored in memcons.output_pos. + * + * Input may be passed by writing into the memcons_input buffer when it is + * empty. The input buffer is empty when both input_pos == input_start and + * *input_start == '\0'. + * + * Copyright (C) 2003-2005 Anton Blanchard and Milton Miller, IBM Corp + * Copyright (C) 2013 Alistair Popple, IBM Corp + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <asm/barrier.h> +#include <asm/page.h> +#include <asm/processor.h> +#include <asm/udbg.h> + +struct memcons { + char *output_start; + char *output_pos; + char *output_end; + char *input_start; + char *input_pos; + char *input_end; +}; + +static char memcons_output[CONFIG_PPC_MEMCONS_OUTPUT_SIZE]; +static char memcons_input[CONFIG_PPC_MEMCONS_INPUT_SIZE]; + +struct memcons memcons = { + .output_start = memcons_output, + .output_pos = memcons_output, + .output_end = &memcons_output[CONFIG_PPC_MEMCONS_OUTPUT_SIZE], + .input_start = memcons_input, + .input_pos = memcons_input, + .input_end = &memcons_input[CONFIG_PPC_MEMCONS_INPUT_SIZE], +}; + +void memcons_putc(char c) +{ + char *new_output_pos; + + *memcons.output_pos = c; + wmb(); + new_output_pos = memcons.output_pos + 1; + if (new_output_pos >= memcons.output_end) + new_output_pos = memcons.output_start; + + memcons.output_pos = new_output_pos; +} + +int memcons_getc_poll(void) +{ + char c; + char *new_input_pos; + + if (*memcons.input_pos) { + c = *memcons.input_pos; + + new_input_pos = memcons.input_pos + 1; + if (new_input_pos >= memcons.input_end) + new_input_pos = memcons.input_start; + else if (*new_input_pos == '\0') + new_input_pos = memcons.input_start; + + *memcons.input_pos = '\0'; + wmb(); + memcons.input_pos = new_input_pos; + return c; + } + + return -1; +} + +int memcons_getc(void) +{ + int c; + + while (1) { + c = memcons_getc_poll(); + if (c == -1) + cpu_relax(); + else + break; + } + + return c; +} + +void udbg_init_memcons(void) +{ + udbg_putc = memcons_putc; + udbg_getc = memcons_getc; + udbg_getc_poll = memcons_getc_poll; +} diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index 48861d3..7cd728b 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -51,6 +51,12 @@ static struct icp_ipl __iomem *icp_native_regs[NR_CPUS]; static inline unsigned int icp_native_get_xirr(void) { int cpu = smp_processor_id(); + unsigned int xirr; + + /* Handled an interrupt latched by KVM */ + xirr = kvmppc_get_xics_latch(); + if (xirr) + return xirr; return in_be32(&icp_native_regs[cpu]->xirr.word); } @@ -81,7 +87,7 @@ static void icp_native_set_cpu_priority(unsigned char cppr) iosync(); } -static void icp_native_eoi(struct irq_data *d) +void icp_native_eoi(struct irq_data *d) { unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d); @@ -138,6 +144,7 @@ static unsigned int icp_native_get_irq(void) static void icp_native_cause_ipi(int cpu, unsigned long data) { + kvmppc_set_host_ipi(cpu, 1); icp_native_set_qirr(cpu, IPI_PRIORITY); } @@ -151,6 +158,7 @@ static irqreturn_t icp_native_ipi_action(int irq, void *dev_id) { int cpu = smp_processor_id(); + kvmppc_set_host_ipi(cpu, 0); icp_native_set_qirr(cpu, 0xff); return smp_ipi_demux(); diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c index f7e8609..39d7221 100644 --- a/arch/powerpc/sysdev/xics/ics-opal.c +++ b/arch/powerpc/sysdev/xics/ics-opal.c @@ -148,7 +148,7 @@ static int ics_opal_set_affinity(struct irq_data *d, __func__, d->irq, hw_irq, server, rc); return -1; } - return 0; + return IRQ_SET_MASK_OK; } static struct irq_chip ics_opal_irq_chip = { diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c index c782f85..936575d 100644 --- a/arch/powerpc/sysdev/xics/ics-rtas.c +++ b/arch/powerpc/sysdev/xics/ics-rtas.c @@ -213,7 +213,7 @@ static int ics_rtas_host_match(struct ics *ics, struct device_node *node) return !of_device_is_compatible(node, "chrp,iic"); } -int ics_rtas_init(void) +__init int ics_rtas_init(void) { ibm_get_xive = rtas_token("ibm,get-xive"); ibm_set_xive = rtas_token("ibm,set-xive"); |