diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-08-30 05:14:46 (GMT) |
---|---|---|
committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-08-30 05:14:46 (GMT) |
commit | 9bb7361d99fb5c510e62b521e4292581fa1bee98 (patch) | |
tree | f9a4797a2e97006947011fcdbf8677a84fbdf182 /arch/powerpc | |
parent | c6a389f123b9f68d605bb7e0f9b32ec1e3e14132 (diff) | |
parent | 9fcd768d0cc88b41ea459e25d2db12d3e25fa9dd (diff) | |
download | linux-9bb7361d99fb5c510e62b521e4292581fa1bee98.tar.xz |
Merge remote-tracking branch 'jwb/next' into next
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/Kconfig | 2 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/hcu4.dts | 168 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/yosemite.dts | 36 | ||||
-rw-r--r-- | arch/powerpc/configs/40x/hcu4_defconfig | 80 | ||||
-rw-r--r-- | arch/powerpc/configs/ppc40x_defconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/include/asm/kexec.h | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/misc_32.S | 171 | ||||
-rw-r--r-- | arch/powerpc/platforms/40x/Kconfig | 8 | ||||
-rw-r--r-- | arch/powerpc/platforms/40x/Makefile | 1 | ||||
-rw-r--r-- | arch/powerpc/platforms/40x/hcu4.c | 61 | ||||
-rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.c | 89 | ||||
-rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.h | 12 |
12 files changed, 293 insertions, 338 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 6926b61..0a3d556 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -345,7 +345,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE config KEXEC bool "kexec system call (EXPERIMENTAL)" - depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL + depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !47x)) && EXPERIMENTAL help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot diff --git a/arch/powerpc/boot/dts/hcu4.dts b/arch/powerpc/boot/dts/hcu4.dts deleted file mode 100644 index 7988598..0000000 --- a/arch/powerpc/boot/dts/hcu4.dts +++ /dev/null @@ -1,168 +0,0 @@ -/* -* Device Tree Source for Netstal Maschinen HCU4 -* based on the IBM Walnut -* -* Copyright 2008 -* Niklaus Giger <niklaus.giger@member.fsf.org> -* -* Copyright 2007 IBM Corp. -* Josh Boyer <jwboyer@linux.vnet.ibm.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. -*/ - -/dts-v1/; - -/ { - #address-cells = <0x1>; - #size-cells = <0x1>; - model = "netstal,hcu4"; - compatible = "netstal,hcu4"; - dcr-parent = <0x1>; - - aliases { - ethernet0 = "/plb/opb/ethernet@ef600800"; - serial0 = "/plb/opb/serial@ef600300"; - }; - - cpus { - #address-cells = <0x1>; - #size-cells = <0x0>; - - cpu@0 { - device_type = "cpu"; - model = "PowerPC,405GPr"; - reg = <0x0>; - clock-frequency = <0>; /* Filled in by U-Boot */ - timebase-frequency = <0x0>; /* Filled in by U-Boot */ - i-cache-line-size = <0x20>; - d-cache-line-size = <0x20>; - i-cache-size = <0x4000>; - d-cache-size = <0x4000>; - dcr-controller; - dcr-access-method = "native"; - linux,phandle = <0x1>; - }; - }; - - memory { - device_type = "memory"; - reg = <0x0 0x0>; /* Filled in by U-Boot */ - }; - - UIC0: interrupt-controller { - compatible = "ibm,uic"; - interrupt-controller; - cell-index = <0x0>; - dcr-reg = <0xc0 0x9>; - #address-cells = <0x0>; - #size-cells = <0x0>; - #interrupt-cells = <0x2>; - linux,phandle = <0x2>; - }; - - plb { - compatible = "ibm,plb3"; - #address-cells = <0x1>; - #size-cells = <0x1>; - ranges; - clock-frequency = <0x0>; /* Filled in by U-Boot */ - - SDRAM0: memory-controller { - compatible = "ibm,sdram-405gp"; - dcr-reg = <0x10 0x2>; - }; - - MAL: mcmal { - compatible = "ibm,mcmal-405gp", "ibm,mcmal"; - dcr-reg = <0x180 0x62>; - num-tx-chans = <0x1>; - num-rx-chans = <0x1>; - interrupt-parent = <0x2>; - interrupts = <0xb 0x4 0xc 0x4 0xa 0x4 0xd 0x4 0xe 0x4>; - linux,phandle = <0x3>; - }; - - POB0: opb { - compatible = "ibm,opb-405gp", "ibm,opb"; - #address-cells = <0x1>; - #size-cells = <0x1>; - ranges = <0xef600000 0xef600000 0xa00000>; - dcr-reg = <0xa0 0x5>; - clock-frequency = <0x0>; /* Filled in by U-Boot */ - - UART0: serial@ef600300 { - device_type = "serial"; - compatible = "ns16550"; - reg = <0xef600300 0x8>; - virtual-reg = <0xef600300>; - clock-frequency = <0x0>;/* Filled in by U-Boot */ - current-speed = <0>; /* Filled in by U-Boot */ - interrupt-parent = <0x2>; - interrupts = <0x0 0x4>; - }; - - IIC: i2c@ef600500 { - compatible = "ibm,iic-405gp", "ibm,iic"; - reg = <0xef600500 0x11>; - interrupt-parent = <0x2>; - interrupts = <0x2 0x4>; - }; - - GPIO: gpio@ef600700 { - compatible = "ibm,gpio-405gp"; - reg = <0xef600700 0x20>; - }; - - EMAC: ethernet@ef600800 { - device_type = "network"; - compatible = "ibm,emac-405gp", "ibm,emac"; - interrupt-parent = <0x2>; - interrupts = <0xf 0x4 0x9 0x4>; - local-mac-address = [00 00 00 00 00 00]; - reg = <0xef600800 0x70>; - mal-device = <0x3>; - mal-tx-channel = <0x0>; - mal-rx-channel = <0x0>; - cell-index = <0x0>; - max-frame-size = <0x5dc>; - rx-fifo-size = <0x1000>; - tx-fifo-size = <0x800>; - phy-mode = "rmii"; - phy-map = <0x1>; - }; - }; - - EBC0: ebc { - compatible = "ibm,ebc-405gp", "ibm,ebc"; - dcr-reg = <0x12 0x2>; - #address-cells = <0x2>; - #size-cells = <0x1>; - clock-frequency = <0x0>; /* Filled in by U-Boot */ - - sram@0,0 { - reg = <0x0 0x0 0x80000>; - }; - - flash@0,80000 { - compatible = "jedec-flash"; - bank-width = <0x1>; - reg = <0x0 0x80000 0x80000>; - #address-cells = <0x1>; - #size-cells = <0x1>; - - partition@0 { - label = "OpenBIOS"; - reg = <0x0 0x80000>; - read-only; - }; - }; - }; - }; - - chosen { - linux,stdout-path = "/plb/opb/serial@ef600300"; - }; -}; diff --git a/arch/powerpc/boot/dts/yosemite.dts b/arch/powerpc/boot/dts/yosemite.dts index 6492324..30bb475 100644 --- a/arch/powerpc/boot/dts/yosemite.dts +++ b/arch/powerpc/boot/dts/yosemite.dts @@ -138,6 +138,42 @@ clock-frequency = <0>; /* Filled in by zImage */ interrupts = <0x5 0x1>; interrupt-parent = <&UIC1>; + + nor_flash@0,0 { + compatible = "amd,s29gl256n", "cfi-flash"; + bank-width = <2>; + reg = <0x00000000 0x00000000 0x04000000>; + #address-cells = <1>; + #size-cells = <1>; + partition@0 { + label = "kernel"; + reg = <0x00000000 0x001e0000>; + }; + partition@1e0000 { + label = "dtb"; + reg = <0x001e0000 0x00020000>; + }; + partition@200000 { + label = "ramdisk"; + reg = <0x00200000 0x01400000>; + }; + partition@1600000 { + label = "jffs2"; + reg = <0x01600000 0x00400000>; + }; + partition@1a00000 { + label = "user"; + reg = <0x01a00000 0x02540000>; + }; + partition@3f40000 { + label = "env"; + reg = <0x03f40000 0x00040000>; + }; + partition@3f80000 { + label = "u-boot"; + reg = <0x03f80000 0x00080000>; + }; + }; }; UART0: serial@ef600300 { diff --git a/arch/powerpc/configs/40x/hcu4_defconfig b/arch/powerpc/configs/40x/hcu4_defconfig deleted file mode 100644 index ebeb4ac..0000000 --- a/arch/powerpc/configs/40x/hcu4_defconfig +++ /dev/null @@ -1,80 +0,0 @@ -CONFIG_40x=y -CONFIG_EXPERIMENTAL=y -CONFIG_SYSVIPC=y -CONFIG_POSIX_MQUEUE=y -CONFIG_LOG_BUF_SHIFT=14 -CONFIG_BLK_DEV_INITRD=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -CONFIG_KALLSYMS_ALL=y -CONFIG_KALLSYMS_EXTRA_PASS=y -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_BLK_DEV_BSG is not set -CONFIG_HCU4=y -# CONFIG_WALNUT is not set -CONFIG_SPARSE_IRQ=y -CONFIG_PCI=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -CONFIG_IP_PNP=y -CONFIG_IP_PNP_DHCP=y -CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_IPV6 is not set -CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -CONFIG_CONNECTOR=y -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CMDLINE_PARTS=y -CONFIG_MTD_OF_PARTS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=m -CONFIG_MTD_CFI=y -CONFIG_MTD_JEDECPROBE=y -CONFIG_MTD_CFI_AMDSTD=y -CONFIG_MTD_PHYSMAP_OF=y -CONFIG_PROC_DEVICETREE=y -CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_SIZE=35000 -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_IBM_NEW_EMAC=y -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_EXTENDED=y -CONFIG_SERIAL_8250_SHARE_IRQ=y -CONFIG_SERIAL_OF_PLATFORM=y -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -CONFIG_VIDEO_OUTPUT_CONTROL=m -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -CONFIG_INOTIFY=y -CONFIG_PROC_KCORE=y -CONFIG_TMPFS=y -CONFIG_CRAMFS=y -CONFIG_NFS_FS=y -CONFIG_NFS_V3=y -CONFIG_ROOT_NFS=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_FS=y -CONFIG_DEBUG_KERNEL=y -CONFIG_DETECT_HUNG_TASK=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_CRYPTO=y -CONFIG_CRYPTO_CBC=y -CONFIG_CRYPTO_ECB=y -CONFIG_CRYPTO_PCBC=y -CONFIG_CRYPTO_MD5=y -CONFIG_CRYPTO_DES=y -# CONFIG_CRYPTO_ANSI_CPRNG is not set diff --git a/arch/powerpc/configs/ppc40x_defconfig b/arch/powerpc/configs/ppc40x_defconfig index bfd634b..e9d920c 100644 --- a/arch/powerpc/configs/ppc40x_defconfig +++ b/arch/powerpc/configs/ppc40x_defconfig @@ -14,7 +14,6 @@ CONFIG_MODULE_UNLOAD=y CONFIG_PPC4xx_GPIO=y CONFIG_ACADIA=y CONFIG_EP405=y -CONFIG_HCU4=y CONFIG_HOTFOOT=y CONFIG_KILAUEA=y CONFIG_MAKALU=y diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h index 8a33698..f921eb1 100644 --- a/arch/powerpc/include/asm/kexec.h +++ b/arch/powerpc/include/asm/kexec.h @@ -2,7 +2,7 @@ #define _ASM_POWERPC_KEXEC_H #ifdef __KERNEL__ -#ifdef CONFIG_FSL_BOOKE +#if defined(CONFIG_FSL_BOOKE) || defined(CONFIG_44x) /* * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 998a100..f7d760a 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -8,6 +8,8 @@ * kexec bits: * Copyright (C) 2002-2003 Eric Biederman <ebiederm@xmission.com> * GameCube/ppc32 port Copyright (C) 2004 Albert Herranz + * PPC44x port. Copyright (C) 2011, IBM Corporation + * Author: Suzuki Poulose <suzuki@in.ibm.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -736,6 +738,175 @@ relocate_new_kernel: mr r5, r31 li r0, 0 +#elif defined(CONFIG_44x) && !defined(CONFIG_47x) + +/* + * Code for setting up 1:1 mapping for PPC440x for KEXEC + * + * We cannot switch off the MMU on PPC44x. + * So we: + * 1) Invalidate all the mappings except the one we are running from. + * 2) Create a tmp mapping for our code in the other address space(TS) and + * jump to it. Invalidate the entry we started in. + * 3) Create a 1:1 mapping for 0-2GiB in chunks of 256M in original TS. + * 4) Jump to the 1:1 mapping in original TS. + * 5) Invalidate the tmp mapping. + * + * - Based on the kexec support code for FSL BookE + * - Doesn't support 47x yet. + * + */ + /* Save our parameters */ + mr r29, r3 + mr r30, r4 + mr r31, r5 + + /* Load our MSR_IS and TID to MMUCR for TLB search */ + mfspr r3,SPRN_PID + mfmsr r4 + andi. r4,r4,MSR_IS@l + beq wmmucr + oris r3,r3,PPC44x_MMUCR_STS@h +wmmucr: + mtspr SPRN_MMUCR,r3 + sync + + /* + * Invalidate all the TLB entries except the current entry + * where we are running from + */ + bl 0f /* Find our address */ +0: mflr r5 /* Make it accessible */ + tlbsx r23,0,r5 /* Find entry we are in */ + li r4,0 /* Start at TLB entry 0 */ + li r3,0 /* Set PAGEID inval value */ +1: cmpw r23,r4 /* Is this our entry? */ + beq skip /* If so, skip the inval */ + tlbwe r3,r4,PPC44x_TLB_PAGEID /* If not, inval the entry */ +skip: + addi r4,r4,1 /* Increment */ + cmpwi r4,64 /* Are we done? */ + bne 1b /* If not, repeat */ + isync + + /* Create a temp mapping and jump to it */ + andi. r6, r23, 1 /* Find the index to use */ + addi r24, r6, 1 /* r24 will contain 1 or 2 */ + + mfmsr r9 /* get the MSR */ + rlwinm r5, r9, 27, 31, 31 /* Extract the MSR[IS] */ + xori r7, r5, 1 /* Use the other address space */ + + /* Read the current mapping entries */ + tlbre r3, r23, PPC44x_TLB_PAGEID + tlbre r4, r23, PPC44x_TLB_XLAT + tlbre r5, r23, PPC44x_TLB_ATTRIB + + /* Save our current XLAT entry */ + mr r25, r4 + + /* Extract the TLB PageSize */ + li r10, 1 /* r10 will hold PageSize */ + rlwinm r11, r3, 0, 24, 27 /* bits 24-27 */ + + /* XXX: As of now we use 256M, 4K pages */ + cmpwi r11, PPC44x_TLB_256M + bne tlb_4k + rotlwi r10, r10, 28 /* r10 = 256M */ + b write_out +tlb_4k: + cmpwi r11, PPC44x_TLB_4K + bne default + rotlwi r10, r10, 12 /* r10 = 4K */ + b write_out +default: + rotlwi r10, r10, 10 /* r10 = 1K */ + +write_out: + /* + * Write out the tmp 1:1 mapping for this code in other address space + * Fixup EPN = RPN , TS=other address space + */ + insrwi r3, r7, 1, 23 /* Bit 23 is TS for PAGEID field */ + + /* Write out the tmp mapping entries */ + tlbwe r3, r24, PPC44x_TLB_PAGEID + tlbwe r4, r24, PPC44x_TLB_XLAT + tlbwe r5, r24, PPC44x_TLB_ATTRIB + + subi r11, r10, 1 /* PageOffset Mask = PageSize - 1 */ + not r10, r11 /* Mask for PageNum */ + + /* Switch to other address space in MSR */ + insrwi r9, r7, 1, 26 /* Set MSR[IS] = r7 */ + + bl 1f +1: mflr r8 + addi r8, r8, (2f-1b) /* Find the target offset */ + + /* Jump to the tmp mapping */ + mtspr SPRN_SRR0, r8 + mtspr SPRN_SRR1, r9 + rfi + +2: + /* Invalidate the entry we were executing from */ + li r3, 0 + tlbwe r3, r23, PPC44x_TLB_PAGEID + + /* attribute fields. rwx for SUPERVISOR mode */ + li r5, 0 + ori r5, r5, (PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_SX | PPC44x_TLB_G) + + /* Create 1:1 mapping in 256M pages */ + xori r7, r7, 1 /* Revert back to Original TS */ + + li r8, 0 /* PageNumber */ + li r6, 3 /* TLB Index, start at 3 */ + +next_tlb: + rotlwi r3, r8, 28 /* Create EPN (bits 0-3) */ + mr r4, r3 /* RPN = EPN */ + ori r3, r3, (PPC44x_TLB_VALID | PPC44x_TLB_256M) /* SIZE = 256M, Valid */ + insrwi r3, r7, 1, 23 /* Set TS from r7 */ + + tlbwe r3, r6, PPC44x_TLB_PAGEID /* PageID field : EPN, V, SIZE */ + tlbwe r4, r6, PPC44x_TLB_XLAT /* Address translation : RPN */ + tlbwe r5, r6, PPC44x_TLB_ATTRIB /* Attributes */ + + addi r8, r8, 1 /* Increment PN */ + addi r6, r6, 1 /* Increment TLB Index */ + cmpwi r8, 8 /* Are we done ? */ + bne next_tlb + isync + + /* Jump to the new mapping 1:1 */ + li r9,0 + insrwi r9, r7, 1, 26 /* Set MSR[IS] = r7 */ + + bl 1f +1: mflr r8 + and r8, r8, r11 /* Get our offset within page */ + addi r8, r8, (2f-1b) + + and r5, r25, r10 /* Get our target PageNum */ + or r8, r8, r5 /* Target jump address */ + + mtspr SPRN_SRR0, r8 + mtspr SPRN_SRR1, r9 + rfi +2: + /* Invalidate the tmp entry we used */ + li r3, 0 + tlbwe r3, r24, PPC44x_TLB_PAGEID + sync + + /* Restore the parameters */ + mr r3, r29 + mr r4, r30 + mr r5, r31 + + li r0, 0 #else li r0, 0 diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index d733d7c..ae5e0bf 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -32,14 +32,6 @@ config EP405 help This option enables support for the EP405/EP405PC boards. -config HCU4 - bool "Hcu4" - depends on 40x - default n - select 405GPR - help - This option enables support for the Nestal Maschinen HCU4 board. - config HOTFOOT bool "Hotfoot" depends on 40x diff --git a/arch/powerpc/platforms/40x/Makefile b/arch/powerpc/platforms/40x/Makefile index 56e8900..88c22de 100644 --- a/arch/powerpc/platforms/40x/Makefile +++ b/arch/powerpc/platforms/40x/Makefile @@ -1,4 +1,3 @@ -obj-$(CONFIG_HCU4) += hcu4.o obj-$(CONFIG_WALNUT) += walnut.o obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD) += virtex.o obj-$(CONFIG_EP405) += ep405.o diff --git a/arch/powerpc/platforms/40x/hcu4.c b/arch/powerpc/platforms/40x/hcu4.c deleted file mode 100644 index 60b2afe..0000000 --- a/arch/powerpc/platforms/40x/hcu4.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Architecture- / platform-specific boot-time initialization code for - * IBM PowerPC 4xx based boards. Adapted from original - * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek - * <dan@net4x.com>. - * - * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * Rewritten and ported to the merged powerpc tree: - * Copyright 2007 IBM Corporation - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * - * 2002 (c) MontaVista, Software, Inc. 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/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id hcu4_of_bus[] = { - { .compatible = "ibm,plb3", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init hcu4_device_probe(void) -{ - of_platform_bus_probe(NULL, hcu4_of_bus, NULL); - return 0; -} -machine_device_initcall(hcu4, hcu4_device_probe); - -static int __init hcu4_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "netstal,hcu4")) - return 0; - - return 1; -} - -define_machine(hcu4) { - .name = "HCU4", - .probe = hcu4_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index dbfe96b..2ec046d 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -1092,6 +1092,10 @@ static int __init ppc460sx_pciex_core_init(struct device_node *np) mtdcri(SDR0, PESDR1_460SX_HSSSLEW, 0xFFFF0000); mtdcri(SDR0, PESDR2_460SX_HSSSLEW, 0xFFFF0000); + /* Set HSS PRBS enabled */ + mtdcri(SDR0, PESDR0_460SX_HSSCTLSET, 0x00001130); + mtdcri(SDR0, PESDR2_460SX_HSSCTLSET, 0x00001130); + udelay(100); /* De-assert PLLRESET */ @@ -1132,9 +1136,6 @@ static int ppc460sx_pciex_init_port_hw(struct ppc4xx_pciex_port *port) dcri_clrset(SDR0, port->sdr_base + PESDRn_UTLSET2, 0, 0x01000000); - /*Gen-1*/ - mtdcri(SDR0, port->sdr_base + PESDRn_460SX_RCEI, 0x08000000); - dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET, (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL), PESDRx_RCSSET_RSTPYN); @@ -1148,14 +1149,42 @@ static int ppc460sx_pciex_init_utl(struct ppc4xx_pciex_port *port) { /* Max 128 Bytes */ out_be32 (port->utl_base + PEUTL_PBBSZ, 0x00000000); + /* Assert VRB and TXE - per datasheet turn off addr validation */ + out_be32(port->utl_base + PEUTL_PCTL, 0x80800000); return 0; } +static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port) +{ + void __iomem *mbase; + int attempt = 50; + + port->link = 0; + + mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000); + if (mbase == NULL) { + printk(KERN_ERR "%s: Can't map internal config space !", + port->node->full_name); + goto done; + } + + while (attempt && (0 == (in_le32(mbase + PECFG_460SX_DLLSTA) + & PECFG_460SX_DLLSTA_LINKUP))) { + attempt--; + mdelay(10); + } + if (attempt) + port->link = 1; +done: + iounmap(mbase); + +} + static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = { .core_init = ppc460sx_pciex_core_init, .port_init_hw = ppc460sx_pciex_init_port_hw, .setup_utl = ppc460sx_pciex_init_utl, - .check_link = ppc4xx_pciex_check_link_sdr, + .check_link = ppc460sx_pciex_check_link, }; #endif /* CONFIG_44x */ @@ -1338,15 +1367,15 @@ static int __init ppc4xx_pciex_port_init(struct ppc4xx_pciex_port *port) if (rc != 0) return rc; - if (ppc4xx_pciex_hwops->check_link) - ppc4xx_pciex_hwops->check_link(port); - /* * Initialize mapping: disable all regions and configure * CFG and REG regions based on resources in the device tree */ ppc4xx_pciex_port_init_mapping(port); + if (ppc4xx_pciex_hwops->check_link) + ppc4xx_pciex_hwops->check_link(port); + /* * Map UTL */ @@ -1360,13 +1389,23 @@ static int __init ppc4xx_pciex_port_init(struct ppc4xx_pciex_port *port) ppc4xx_pciex_hwops->setup_utl(port); /* - * Check for VC0 active and assert RDY. + * Check for VC0 active or PLL Locked and assert RDY. */ if (port->sdr_base) { - if (port->link && - ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS, - 1 << 16, 1 << 16, 5000)) { - printk(KERN_INFO "PCIE%d: VC0 not active\n", port->index); + if (of_device_is_compatible(port->node, + "ibm,plb-pciex-460sx")){ + if (port->link && ppc4xx_pciex_wait_on_sdr(port, + PESDRn_RCSSTS, + 1 << 12, 1 << 12, 5000)) { + printk(KERN_INFO "PCIE%d: PLL not locked\n", + port->index); + port->link = 0; + } + } else if (port->link && + ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS, + 1 << 16, 1 << 16, 5000)) { + printk(KERN_INFO "PCIE%d: VC0 not active\n", + port->index); port->link = 0; } @@ -1573,8 +1612,15 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port, dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAH, lah); dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAL, lal); dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKH, 0x7fffffff); - /* Note that 3 here means enabled | single region */ - dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, sa | 3); + /*Enabled and single region */ + if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx")) + dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, + sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT + | DCRO_PEGPL_OMRxMSKL_VAL); + else + dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, + sa | DCRO_PEGPL_OMR1MSKL_UOT + | DCRO_PEGPL_OMRxMSKL_VAL); break; case 1: out_le32(mbase + PECFG_POM1LAH, pciah); @@ -1582,8 +1628,8 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port, dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAH, lah); dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAL, lal); dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKH, 0x7fffffff); - /* Note that 3 here means enabled | single region */ - dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL, sa | 3); + dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL, + sa | DCRO_PEGPL_OMRxMSKL_VAL); break; case 2: out_le32(mbase + PECFG_POM2LAH, pciah); @@ -1592,7 +1638,9 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port, dcr_write(port->dcrs, DCRO_PEGPL_OMR3BAL, lal); dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKH, 0x7fffffff); /* Note that 3 here means enabled | IO space !!! */ - dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL, sa | 3); + dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL, + sa | DCRO_PEGPL_OMR3MSKL_IO + | DCRO_PEGPL_OMRxMSKL_VAL); break; } @@ -1693,6 +1741,9 @@ static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port, if (res->flags & IORESOURCE_PREFETCH) sa |= 0x8; + if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx")) + sa |= PCI_BASE_ADDRESS_MEM_TYPE_64; + out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa)); out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa)); @@ -1854,6 +1905,10 @@ static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port) } out_le16(mbase + 0x202, val); + /* Enable Bus master, memory, and io space */ + if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx")) + out_le16(mbase + 0x204, 0x7); + if (!port->endpoint) { /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */ out_le32(mbase + 0x208, 0x06040001); diff --git a/arch/powerpc/sysdev/ppc4xx_pci.h b/arch/powerpc/sysdev/ppc4xx_pci.h index c39a134..32ce763 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.h +++ b/arch/powerpc/sysdev/ppc4xx_pci.h @@ -464,6 +464,18 @@ #define PECFG_POM2LAL 0x390 #define PECFG_POM2LAH 0x394 +/* 460sx only */ +#define PECFG_460SX_DLLSTA 0x3f8 + +/* 460sx Bit Mappings */ +#define PECFG_460SX_DLLSTA_LINKUP 0x00000010 +#define DCRO_PEGPL_460SX_OMR1MSKL_UOT 0x00000004 + +/* PEGPL Bit Mappings */ +#define DCRO_PEGPL_OMRxMSKL_VAL 0x00000001 +#define DCRO_PEGPL_OMR1MSKL_UOT 0x00000002 +#define DCRO_PEGPL_OMR3MSKL_IO 0x00000002 + /* SDR Bit Mappings */ #define PESDRx_RCSSET_HLDPLB 0x10000000 #define PESDRx_RCSSET_RSTGU 0x01000000 |