From 76316a318de91f6184e7c22a10e02d275ade2441 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Sun, 11 Mar 2007 13:42:58 +0100 Subject: [Microblaze][PATCH] timer support interrupt controller support flash support ethernet support cache support board information support env support booting image support adding support for Xilinx ML401 diff --git a/board/xilinx/ml401/Makefile b/board/xilinx/ml401/Makefile new file mode 100644 index 0000000..9ab5633 --- /dev/null +++ b/board/xilinx/ml401/Makefile @@ -0,0 +1,65 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 $(TOPDIR)/config.mk +ifneq ($(OBJTREE),$(SRCTREE)) +$(shell mkdir -p $(obj)../common) +$(shell mkdir -p $(obj)../xilinx_enet) +endif + +INCS := -I../common -I../xilinx_enet +CFLAGS += $(INCS) +HOST_CFLAGS += $(INCS) + +LIB = $(obj)lib$(BOARD).a + +COBJS = $(BOARD).o \ + ../xilinx_enet/emac_adapter.o ../xilinx_enet/xemac.o \ + ../xilinx_enet/xemac_options.o ../xilinx_enet/xemac_polled.o \ + ../xilinx_enet/xemac_intr.o ../xilinx_enet/xemac_g.o \ + ../xilinx_enet/xemac_intr_dma.o ../common/xipif_v1_23_b.o \ + ../common/xbasic_types.o ../common/xdma_channel.o \ + ../common/xdma_channel_sg.o ../common/xpacket_fifo_v1_00_b.o \ + ../common/xversion.o \ + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/xilinx/ml401/config.mk b/board/xilinx/ml401/config.mk new file mode 100644 index 0000000..48f792a --- /dev/null +++ b/board/xilinx/ml401/config.mk @@ -0,0 +1,29 @@ +# +# (C) Copyright 2004 Atmark Techno, Inc. +# +# Yasushi SHOJI +# +# 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 +# + +TEXT_BASE = 0x12000000 + +PLATFORM_CPPFLAGS += -mno-xl-soft-mul +PLATFORM_CPPFLAGS += -mno-xl-soft-div +PLATFORM_CPPFLAGS += -mxl-barrel-shift diff --git a/board/xilinx/ml401/ml401.c b/board/xilinx/ml401/ml401.c new file mode 100644 index 0000000..a341ac2 --- /dev/null +++ b/board/xilinx/ml401/ml401.c @@ -0,0 +1,49 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + +/* This is a board specific file. It's OK to include board specific + * header files */ + +#include +#include + +void do_reset (void) +{ +#ifdef CFG_GPIO_0 + *((unsigned long *)(CFG_GPIO_0_ADDR)) = + ++(*((unsigned long *)(CFG_GPIO_0_ADDR))); +#endif +#ifdef CFG_RESET_ADDRESS + puts ("Reseting board\n"); + asm ("bra r0"); +#endif +} + +int gpio_init (void) +{ +#ifdef CFG_GPIO_0 + *((unsigned long *)(CFG_GPIO_0_ADDR)) = 0x0; +#endif + return 0; +} diff --git a/board/xilinx/ml401/u-boot.lds b/board/xilinx/ml401/u-boot.lds new file mode 100644 index 0000000..93147fc --- /dev/null +++ b/board/xilinx/ml401/u-boot.lds @@ -0,0 +1,66 @@ +/* + * (C) Copyright 2004 Atmark Techno, Inc. + * + * Yasushi SHOJI + * + * 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 + */ + +OUTPUT_ARCH(microblaze) +ENTRY(_start) + +SECTIONS +{ + .text ALIGN(0x4): + { + __text_start = .; + cpu/microblaze/start.o (.text) + *(.text) + __text_end = .; + } + + .rodata ALIGN(0x4): + { + __rodata_start = .; + *(.rodata) + __rodata_end = .; + } + + .data ALIGN(0x4): + { + __data_start = .; + *(.data) + __data_end = .; + } + + .u_boot_cmd ALIGN(0x4): + { + . = .; + __u_boot_cmd_start = .; + *(.u_boot_cmd) + __u_boot_cmd_end = .; + } + + .bss ALIGN(0x4): + { + __bss_start = .; + *(.bss) + __bss_end = .; + } +} diff --git a/board/xilinx/ml401/xparameters.h b/board/xilinx/ml401/xparameters.h new file mode 100644 index 0000000..8ec2864 --- /dev/null +++ b/board/xilinx/ml401/xparameters.h @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + +/* DDR SDRAM */ +#define CONFIG_XILINX_ERAM_START 0x10000000 +#define CONFIG_XILINX_ERAM_SIZE 0x04000000 + +/* FLASH_MEMORY Settings */ +#define CONFIG_XILINX_FLASH_START 0x28000000 +#define CONFIG_XILINX_FLASH_SIZE 0x00800000 + +/* serial line */ +#define CONFIG_XILINX_UARTLITE_0_BASEADDR 0xA0000000 +#define CONFIG_XILINX_UARTLITE_0_BAUDRATE 115200 + +/* GPIO */ +#define CONFIG_XILINX_GPIO_0_BASEADDR 0x90000000 + +/* INTC */ +#define CONFIG_XILINX_INTC_0_BASEADDR 0xD1000FC0 +#define CONFIG_XILINX_INTC_0_NUM_INTR_INPUTS 12 + +/* TIMER */ +#define CONFIG_XILINX_TIMER_0_BASEADDR 0xA2000000 +#define CONFIG_XILINX_TIMER_0_IRQ 0 + +/* ethernet */ +#define XPAR_XEMAC_NUM_INSTANCES 1 +#define XPAR_OPB_ETHERNET_0_BASEADDR 0x60000000 +#define XPAR_OPB_ETHERNET_0_HIGHADDR 0x60003FFF +#define XPAR_OPB_ETHERNET_0_DEVICE_ID 0 +#define XPAR_EMAC_0_DEVICE_ID 0 +#define XPAR_OPB_ETHERNET_0_ERR_COUNT_EXIST 1 +#define XPAR_OPB_ETHERNET_0_DMA_PRESENT 1 +#define XPAR_OPB_ETHERNET_0_MII_EXIST 1 diff --git a/cpu/microblaze/cache.c b/cpu/microblaze/cache.c new file mode 100644 index 0000000..fc388eb --- /dev/null +++ b/cpu/microblaze/cache.c @@ -0,0 +1,48 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + +#if (CONFIG_COMMANDS & CFG_CMD_CACHE) + +int dcache_status (void) +{ + int i = 0; + int mask = 0x80; + __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory"); + /* i&=0x80 */ + __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory"); + return i; +} + +int icache_status (void) +{ + int i = 0; + int mask = 0x20; + __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory"); + /* i&=0x20 */ + __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory"); + return i; +} +#endif diff --git a/cpu/microblaze/dcache.S b/cpu/microblaze/dcache.S new file mode 100644 index 0000000..eaf9671 --- /dev/null +++ b/cpu/microblaze/dcache.S @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + .text + .globl dcache_enable + .ent dcache_enable + .align 2 +dcache_enable: + /* Make space on stack for a temporary */ + addi r1, r1, -4 + /* Save register r12 */ + swi r12, r1, 0 + /* Read the MSR register */ + mfs r12, rmsr + /* Set the instruction enable bit */ + ori r12, r12, 0x80 + /* Save the MSR register */ + mts rmsr, r12 + /* Load register r12 */ + lwi r12, r1, 0 + /* Return */ + rtsd r15, 8 + /* Update stack in the delay slot */ + addi r1, r1, 4 + .end dcache_enable + + .text + .globl dcache_disable + .ent dcache_disable + .align 2 +dcache_disable: + /* Make space on stack for a temporary */ + addi r1, r1, -4 + /* Save register r12 */ + swi r12, r1, 0 + /* Read the MSR register */ + mfs r12, rmsr + /* Clear the data cache enable bit */ + andi r12, r12, ~0x80 + /* Save the MSR register */ + mts rmsr, r12 + /* Load register r12 */ + lwi r12, r1, 0 + /* Return */ + rtsd r15, 8 + /* Update stack in the delay slot */ + addi r1, r1, 4 + .end dcache_disable diff --git a/cpu/microblaze/disable_int.S b/cpu/microblaze/disable_int.S new file mode 100644 index 0000000..aecd795 --- /dev/null +++ b/cpu/microblaze/disable_int.S @@ -0,0 +1,46 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + + .text + .globl microblaze_disable_interrupts + .ent microblaze_disable_interrupts + .align 2 +microblaze_disable_interrupts: + #Make space on stack for a temporary + addi r1, r1, -4 + #Save register r12 + swi r12, r1, 0 + #Read the MSR register + mfs r12, rmsr + #Clear the interrupt enable bit + andi r12, r12, ~2 + #Save the MSR register + mts rmsr, r12 + #Load register r12 + lwi r12, r1, 0 + #Return + rtsd r15, 8 + #Update stack in the delay slot + addi r1, r1, 4 + .end microblaze_disable_interrupts diff --git a/cpu/microblaze/enable_int.S b/cpu/microblaze/enable_int.S new file mode 100644 index 0000000..c096c6c --- /dev/null +++ b/cpu/microblaze/enable_int.S @@ -0,0 +1,38 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + + .text + .globl microblaze_enable_interrupts + .ent microblaze_enable_interrupts + .align 2 +microblaze_enable_interrupts: + addi r1, r1, -4 + swi r12, r1, 0 + mfs r12, rmsr + ori r12, r12, 2 + mts rmsr, r12 + lwi r12, r1, 0 + rtsd r15, 8 + addi r1, r1, 4 + .end microblaze_enable_interrupts diff --git a/cpu/microblaze/exception.c b/cpu/microblaze/exception.c new file mode 100644 index 0000000..b135acb --- /dev/null +++ b/cpu/microblaze/exception.c @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + +void _hw_exception_handler (void) +{ + int address = 0; + int state = 0; + /* loading address of exception EAR */ + __asm__ __volatile ("mfs %0,rear"::"r" (address):"memory"); + /* loading excetpion state register ESR */ + __asm__ __volatile ("mfs %0,resr"::"r" (state):"memory"); + printf ("Hardware exception at 0x%x address\n", address); + switch (state & 0x1f) { /* mask on exception cause */ + case 0x1: + puts ("Unaligned data access exception\n"); + break; + case 0x2: + puts ("Illegal op-code exception\n"); + break; + case 0x3: + puts ("Instruction bus error exception\n"); + break; + case 0x4: + puts ("Data bus error exception\n"); + break; + case 0x5: + puts ("Divide by zero exception\n"); + break; + default: + puts ("Undefined cause\n"); + break; + } + printf ("Unaligned %sword access\n", ((state & 0x800) ? "" : "half")); + printf ("Unaligned %s access\n", ((state & 0x400) ? "store" : "load")); + printf ("Register R%x\n", (state & 0x3E) >> 5); + hang (); +} + +#ifdef CFG_USR_EXCEP +void _exception_handler (void) +{ + puts ("User vector_exception\n"); + hang (); +} +#endif diff --git a/cpu/microblaze/icache.S b/cpu/microblaze/icache.S new file mode 100644 index 0000000..25940d1 --- /dev/null +++ b/cpu/microblaze/icache.S @@ -0,0 +1,69 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + + .text + .globl icache_enable + .ent icache_enable + .align 2 +icache_enable: + /* Make space on stack for a temporary */ + addi r1, r1, -4 + /* Save register r12 */ + swi r12, r1, 0 + /* Read the MSR register */ + mfs r12, rmsr + /* Set the instruction enable bit */ + ori r12, r12, 0x20 + /* Save the MSR register */ + mts rmsr, r12 + /* Load register r12 */ + lwi r12, r1, 0 + /* Return */ + rtsd r15, 8 + /* Update stack in the delay slot */ + addi r1, r1, 4 + .end icache_enable + + .text + .globl icache_disable + .ent icache_disable + .align 2 +icache_disable: + /* Make space on stack for a temporary */ + addi r1, r1, -4 + /* Save register r12 */ + swi r12, r1, 0 + /* Read the MSR register */ + mfs r12, rmsr + /* Clear the instruction enable bit */ + andi r12, r12, ~0x20 + /* Save the MSR register */ + mts rmsr, r12 + /* Load register r12 */ + lwi r12, r1, 0 + /* Return */ + rtsd r15, 8 + /* Update stack in the delay slot */ + addi r1, r1, 4 + .end icache_disable diff --git a/cpu/microblaze/irq.S b/cpu/microblaze/irq.S new file mode 100644 index 0000000..a4e3fbf --- /dev/null +++ b/cpu/microblaze/irq.S @@ -0,0 +1,165 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + .text + .global _interrupt_handler +_interrupt_handler: + addi r1, r1, -4 + swi r2, r1, 0 + addi r1, r1, -4 + swi r3, r1, 0 + addi r1, r1, -4 + swi r4, r1, 0 + addi r1, r1, -4 + swi r5, r1, 0 + addi r1, r1, -4 + swi r6, r1, 0 + addi r1, r1, -4 + swi r7, r1, 0 + addi r1, r1, -4 + swi r8, r1, 0 + addi r1, r1, -4 + swi r9, r1, 0 + addi r1, r1, -4 + swi r10, r1, 0 + addi r1, r1, -4 + swi r11, r1, 0 + addi r1, r1, -4 + swi r12, r1, 0 + addi r1, r1, -4 + swi r13, r1, 0 + addi r1, r1, -4 + swi r14, r1, 0 + addi r1, r1, -4 + swi r15, r1, 0 + addi r1, r1, -4 + swi r16, r1, 0 + addi r1, r1, -4 + swi r17, r1, 0 + addi r1, r1, -4 + swi r18, r1, 0 + addi r1, r1, -4 + swi r19, r1, 0 + addi r1, r1, -4 + swi r20, r1, 0 + addi r1, r1, -4 + swi r21, r1, 0 + addi r1, r1, -4 + swi r22, r1, 0 + addi r1, r1, -4 + swi r23, r1, 0 + addi r1, r1, -4 + swi r24, r1, 0 + addi r1, r1, -4 + swi r25, r1, 0 + addi r1, r1, -4 + swi r26, r1, 0 + addi r1, r1, -4 + swi r27, r1, 0 + addi r1, r1, -4 + swi r28, r1, 0 + addi r1, r1, -4 + swi r29, r1, 0 + addi r1, r1, -4 + swi r30, r1, 0 + addi r1, r1, -4 + swi r31, r1, 0 + brlid r15, interrupt_handler + nop + nop + lwi r31, r1, 0 + addi r1, r1, 4 + lwi r30, r1, 0 + addi r1, r1, 4 + lwi r29, r1, 0 + addi r1, r1, 4 + lwi r28, r1, 0 + addi r1, r1, 4 + lwi r27, r1, 0 + addi r1, r1, 4 + lwi r26, r1, 0 + addi r1, r1, 4 + lwi r25, r1, 0 + addi r1, r1, 4 + lwi r24, r1, 0 + addi r1, r1, 4 + lwi r23, r1, 0 + addi r1, r1, 4 + lwi r22, r1, 0 + addi r1, r1, 4 + lwi r21, r1, 0 + addi r1, r1, 4 + lwi r20, r1, 0 + addi r1, r1, 4 + lwi r19, r1, 0 + addi r1, r1, 4 + lwi r18, r1, 0 + addi r1, r1, 4 + lwi r17, r1, 0 + addi r1, r1, 4 + lwi r16, r1, 0 + addi r1, r1, 4 + lwi r15, r1, 0 + addi r1, r1, 4 + lwi r14, r1, 0 + addi r1, r1, 4 + lwi r13, r1, 0 + addi r1, r1, 4 + lwi r12, r1, 0 + addi r1, r1, 4 + lwi r11, r1, 0 + addi r1, r1, 4 + lwi r10, r1, 0 + addi r1, r1, 4 + lwi r9, r1, 0 + addi r1, r1, 4 + lwi r8, r1, 0 + addi r1, r1, 4 + lwi r7, r1, 0 + addi r1, r1, 4 + lwi r6, r1, 0 + addi r1, r1, 4 + lwi r5, r1, 0 + addi r1, r1, 4 + lwi r4, r1, 0 + addi r1, r1, 4 + lwi r3, r1, 0 + addi r1, r1, 4 + lwi r2, r1, 0 + addi r1, r1, 4 + + /* enable_interrupt */ + addi r1, r1, -4 + swi r12, r1, 0 + mfs r12, rmsr + ori r12, r12, 2 + mts rmsr, r12 + lwi r12, r1, 0 + addi r1, r1, 4 + nop + bra r14 + nop + nop + .size _interrupt_handler,.-_interrupt_handler diff --git a/cpu/microblaze/timer.c b/cpu/microblaze/timer.c new file mode 100644 index 0000000..be4fd57 --- /dev/null +++ b/cpu/microblaze/timer.c @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 +#include + +volatile int timestamp = 0; + +void reset_timer (void) +{ + timestamp = 0; +} + +ulong get_timer (ulong base) +{ + return (timestamp - base); +} + +void set_timer (ulong t) +{ + timestamp = t; +} + +#ifdef CFG_INTC_0 +#ifdef CFG_TIMER_0 +extern void install_interrupt_handler (int irq, interrupt_handler_t * hdlr, + void *arg); + +microblaze_timer_t *tmr = (microblaze_timer_t *) (CFG_TIMER_0_ADDR); + +void timer_isr (void *arg) +{ + timestamp++; + tmr->control = tmr->control | TIMER_INTERRUPT; +} + +void timer_init (void) +{ + tmr->loadreg = CFG_TIMER_0_PRELOAD; + tmr->control = TIMER_INTERRUPT | TIMER_RESET; + tmr->control = + TIMER_ENABLE | TIMER_ENABLE_INTR | TIMER_RELOAD | TIMER_DOWN_COUNT; + reset_timer (); + install_interrupt_handler (CFG_TIMER_0_IRQ, timer_isr, (void *)tmr); +} +#endif +#endif diff --git a/include/asm-microblaze/microblaze_intc.h b/include/asm-microblaze/microblaze_intc.h new file mode 100644 index 0000000..73f732c --- /dev/null +++ b/include/asm-microblaze/microblaze_intc.h @@ -0,0 +1,41 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + +typedef volatile struct microblaze_intc_t { + int isr; /* interrupt status register */ + int ipr; /* interrupt pending register */ + int ier; /* interrupt enable register */ + int iar; /* interrupt acknowledge register */ + int sie; /* set interrupt enable bits */ + int cie; /* clear interrupt enable bits */ + int ivr; /* interrupt vector register */ + int mer; /* master enable register */ +} microblaze_intc_t; + +struct irq_action { + interrupt_handler_t *handler; /* pointer to interrupt rutine */ + void *arg; + int count; /* number of interrupt */ +}; + diff --git a/include/asm-microblaze/microblaze_timer.h b/include/asm-microblaze/microblaze_timer.h new file mode 100644 index 0000000..b3d194b --- /dev/null +++ b/include/asm-microblaze/microblaze_timer.h @@ -0,0 +1,42 @@ +/* + * (C) Copyright 2007 Michal Simek + * + * Michal SIMEK + * + * 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 + */ + +#define TIMER_ENABLE_ALL 0x400 /* ENALL */ +#define TIMER_PWM 0x200 /* PWMA0 */ +#define TIMER_INTERRUPT 0x100 /* T0INT */ +#define TIMER_ENABLE 0x080 /* ENT0 */ +#define TIMER_ENABLE_INTR 0x040 /* ENIT0 */ +#define TIMER_RESET 0x020 /* LOAD0 */ +#define TIMER_RELOAD 0x010 /* ARHT0 */ +#define TIMER_EXT_CAPTURE 0x008 /* CAPT0 */ +#define TIMER_EXT_COMPARE 0x004 /* GENT0 */ +#define TIMER_DOWN_COUNT 0x002 /* UDT0 */ +#define TIMER_CAPTURE_MODE 0x001 /* MDT0 */ + +typedef volatile struct microblaze_timer_t { + int control; /* control/statuc register TCSR */ + int loadreg; /* load register TLR */ + int counter; /* timer/counter register */ +} microblaze_timer_t; + diff --git a/include/configs/ml401.h b/include/configs/ml401.h new file mode 100644 index 0000000..4dc2afc --- /dev/null +++ b/include/configs/ml401.h @@ -0,0 +1,221 @@ +/* + * (C) Copyright 2007 Czech Technical University. + * + * Michal SIMEK + * + * 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 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include "../board/xilinx/ml401/xparameters.h" + +#define CONFIG_MICROBLAZE 1 /* MicroBlaze CPU */ +#define CONFIG_ML401 1 /* ML401 Board */ + +/* uart */ +#define CONFIG_SERIAL_BASE CONFIG_XILINX_UARTLITE_0_BASEADDR +#define CONFIG_BAUDRATE CONFIG_XILINX_UARTLITE_0_BAUDRATE +#define CFG_BAUDRATE_TABLE { CONFIG_BAUDRATE } + +/* setting reset address */ +#define CFG_RESET_ADDRESS TEXT_BASE + +/* gpio */ +#define CFG_GPIO_0 1 +#define CFG_GPIO_0_ADDR CONFIG_XILINX_GPIO_0_BASEADDR + +/* interrupt controller */ +#define CFG_INTC_0 1 +#define CFG_INTC_0_ADDR CONFIG_XILINX_INTC_0_BASEADDR +#define CFG_INTC_0_NUM CONFIG_XILINX_INTC_0_NUM_INTR_INPUTS + +/* timer */ +#define CFG_TIMER_0 1 +#define CFG_TIMER_0_ADDR CONFIG_XILINX_TIMER_0_BASEADDR +#define CFG_TIMER_0_IRQ CONFIG_XILINX_TIMER_0_IRQ +#define FREQUENCE 66666666 +#define CFG_TIMER_0_PRELOAD ( FREQUENCE/1000 ) + +/* + * memory layout - Example + * TEXT_BASE = 0x1200_0000; + * CFG_SRAM_BASE = 0x1000_0000; + * CFG_SRAM_SIZE = 0x0400_0000; + * + * CFG_GBL_DATA_OFFSET = 0x1000_0000 + 0x0400_0000 - 0x1000 = 0x13FF_F000 + * CFG_MONITOR_BASE = 0x13FF_F000 - 0x40000 = 0x13FB_F000 + * + * 0x1000_0000 CFG_SDRAM_BASE + * FREE + * 0x1200_0000 TEXT_BASE + * U-BOOT code + * 0x1202_0000 + * FREE + * + * STACK + * 0x11FB_F000 CFG_MONITOR_BASE + * MONITOR_CODE + * 0x13FF_F000 CFG_GBL_DATA_OFFSET + * GLOBAL_DATA + * 0x1400_0000 CFG_SDRAM_BASE + CFG_SDRAM_SIZE + */ + +/* ddr sdram - main memory */ +#define CFG_SDRAM_BASE CONFIG_XILINX_ERAM_START +#define CFG_SDRAM_SIZE CONFIG_XILINX_ERAM_SIZE +#define CFG_MEMTEST_START CFG_SDRAM_BASE +#define CFG_MEMTEST_END (CFG_SDRAM_BASE + 0x1000) + +/* global pointer */ +#define CFG_GBL_DATA_SIZE 0x1000 /* size of global data */ +#define CFG_GBL_DATA_OFFSET (CFG_SDRAM_BASE + CFG_SDRAM_SIZE - CFG_GBL_DATA_SIZE) /* start of global data */ + +/* monitor code */ +#define SIZE 0x40000 +#define CFG_MONITOR_LEN SIZE +#define CFG_MONITOR_BASE (CFG_GBL_DATA_OFFSET - CFG_MONITOR_LEN) +#define CFG_MALLOC_LEN SIZE + +/* stack */ +#define CFG_INIT_SP_OFFSET CFG_MONITOR_BASE + +/*#define RAMENV */ +#define FLASH + +#ifdef FLASH + #define CFG_FLASH_BASE CONFIG_XILINX_FLASH_START + #define CFG_FLASH_SIZE CONFIG_XILINX_FLASH_SIZE + #define CFG_FLASH_CFI 1 + #define CFG_FLASH_CFI_DRIVER 1 + #define CFG_FLASH_EMPTY_INFO 1 /* ?empty sector */ + #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ + #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ + + #ifdef RAMENV + #define CFG_ENV_IS_NOWHERE 1 + #define CFG_ENV_SIZE 0x1000 + #define CFG_ENV_ADDR (CFG_MONITOR_BASE - CFG_ENV_SIZE) + + #else /* !RAMENV */ + #define CFG_ENV_IS_IN_FLASH 1 + #define CFG_ENV_ADDR 0x40000 + #define CFG_ENV_SECT_SIZE 0x40000 /* 256K(one sector) for env */ + #define CFG_ENV_SIZE 0x2000 + #endif /* !RAMBOOT */ +#else /* !FLASH */ + /* ENV in RAM */ + #define CFG_NO_FLASH 1 + #define CFG_ENV_IS_NOWHERE 1 + #define CFG_ENV_SIZE 0x1000 + #define CFG_ENV_ADDR (CFG_MONITOR_BASE - CFG_ENV_SIZE) +#endif /* !FLASH */ + +#ifdef FLASH + #ifdef RAMENV + #define CONFIG_COMMANDS (CONFIG__CMD_DFL |\ + CFG_CMD_MEMORY |\ + CFG_CMD_MISC |\ + CFG_CMD_AUTOSCRIPT |\ + CFG_CMD_IRQ |\ + CFG_CMD_ASKENV |\ + CFG_CMD_BDI |\ + CFG_CMD_RUN |\ + CFG_CMD_LOADS |\ + CFG_CMD_LOADB |\ + CFG_CMD_IMI |\ + CFG_CMD_NET |\ + CFG_CMD_CACHE |\ + CFG_CMD_IMLS |\ + CFG_CMD_FLASH |\ + CFG_CMD_PING \ + ) + #else /* !RAMENV */ + #define CONFIG_COMMANDS (CONFIG__CMD_DFL |\ + CFG_CMD_MEMORY |\ + CFG_CMD_MISC |\ + CFG_CMD_AUTOSCRIPT |\ + CFG_CMD_IRQ |\ + CFG_CMD_ASKENV |\ + CFG_CMD_BDI |\ + CFG_CMD_RUN |\ + CFG_CMD_LOADS |\ + CFG_CMD_LOADB |\ + CFG_CMD_IMI |\ + CFG_CMD_NET |\ + CFG_CMD_CACHE |\ + CFG_CMD_IMLS |\ + CFG_CMD_FLASH |\ + CFG_CMD_PING |\ + CFG_CMD_ENV |\ + CFG_CMD_SAVES \ + ) + + #endif + +#else /* !FLASH */ + #define CONFIG_COMMANDS (CONFIG__CMD_DFL |\ + CFG_CMD_MEMORY |\ + CFG_CMD_MISC |\ + CFG_CMD_AUTOSCRIPT |\ + CFG_CMD_IRQ |\ + CFG_CMD_ASKENV |\ + CFG_CMD_BDI |\ + CFG_CMD_RUN |\ + CFG_CMD_LOADS |\ + CFG_CMD_LOADB |\ + CFG_CMD_IMI |\ + CFG_CMD_NET |\ + CFG_CMD_CACHE |\ + CFG_CMD_PING \ + ) +#endif /* !FLASH */ +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include + +/* Miscellaneous configurable options */ +#define CFG_PROMPT "U-Boot-mONStR> " +#define CFG_CBSIZE 512 /* size of console buffer */ +#define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT) + 16) /* print buffer size */ +#define CFG_MAXARGS 15 /* max number of command args */ +#define CFG_LONGHELP +#define CFG_LOAD_ADDR 0x12000000 /* default load address */ + +#define CONFIG_BOOTDELAY 30 +#define CONFIG_BOOTARGS "root=romfs" +#define CONFIG_HOSTNAME "ml401" +#define CONFIG_BOOTCOMMAND "base 0;tftp 11000000 image.img;bootm" +#define CONFIG_IPADDR 192.168.0.3 +#define CONFIG_SERVERIP 192.168.0.5 +#define CONFIG_GATEWAYIP 192.168.0.1 +#define CONFIG_ETHADDR 00:E0:0C:00:00:FD + +/* architecture dependent code */ +#define CFG_USR_EXCEP /* user exception */ +#define CFG_HZ 1000 + +/* system ace */ +/*#define CONFIG_SYSTEMACE +#define DEBUG_SYSTEMACE +#define CFG_SYSTEMACE_BASE 0xCF000000 +#define CFG_SYSTEMACE_WIDTH 8 +#define CONFIG_DOS_PARTITION +*/ +#endif /* __CONFIG_H */ -- cgit v0.10.2