diff options
Diffstat (limited to 'src/drivers/intel/fsp1_1')
| -rw-r--r-- | src/drivers/intel/fsp1_1/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/drivers/intel/fsp1_1/after_raminit.S | 153 | ||||
| -rw-r--r-- | src/drivers/intel/fsp1_1/cache_as_ram.inc | 137 | ||||
| -rw-r--r-- | src/drivers/intel/fsp1_1/car.c | 85 | ||||
| -rw-r--r-- | src/drivers/intel/fsp1_1/include/fsp/car.h | 52 | ||||
| -rw-r--r-- | src/drivers/intel/fsp1_1/include/fsp/util.h | 7 |
6 files changed, 295 insertions, 140 deletions
diff --git a/src/drivers/intel/fsp1_1/Makefile.inc b/src/drivers/intel/fsp1_1/Makefile.inc index bab68e142d..78e1006de4 100644 --- a/src/drivers/intel/fsp1_1/Makefile.inc +++ b/src/drivers/intel/fsp1_1/Makefile.inc @@ -18,6 +18,7 @@ # Foundation, Inc. # +romstage-y += car.c romstage-y += fsp_util.c romstage-y += hob.c diff --git a/src/drivers/intel/fsp1_1/after_raminit.S b/src/drivers/intel/fsp1_1/after_raminit.S new file mode 100644 index 0000000000..2cc4ef3f20 --- /dev/null +++ b/src/drivers/intel/fsp1_1/after_raminit.S @@ -0,0 +1,153 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2000,2007 Ronald G. Minnich <rminnich@gmail.com> + * Copyright (C) 2007-2008 coresystems GmbH + * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC. + * Copyright (C) 2015 Intel 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; version 2 of the License. + * + * 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. + */ + +#include <cpu/x86/mtrr.h> +#include <cpu/x86/cache.h> +#include <cpu/x86/post_code.h> + +/* + * This is the common entry point after DRAM has been initialized. + */ + /* + * eax: New stack address + * ebx: FSP_INFO_HEADER address + */ + + /* Switch to the stack in RAM */ + movl %eax, %esp + + /* Calculate TempRamExit entry into FSP */ + movl %ebx, %ebp + mov 0x40(%ebp), %eax + add 0x1c(%ebp), %eax + + /* Build the call frame */ + pushl $0 + + /* Call TempRamExit */ + call *%eax + add $4, %esp + cmp $0, %eax + jz 1f + /* + * Failures for post code BC - failed in TempRamExit + * + * 0x00 - FSP_SUCCESS: Temp RAM Exit completed successfully. + * 0x02 - FSP_INVALID_PARAMETER: Input parameters are invalid. + * 0x03 - FSP_UNSUPPORTED: The FSP calling conditions were not met. + * 0x07 - FSP_DEVICE_ERROR: Temp RAM Exit failed. + */ + movb $0xBC, %ah + jmp .Lhlt + +1: + /* Display the MTRRs */ + call soc_display_mtrrs + + /* + * The stack contents are initialized in src/soc/intel/common/stack.c + * to be the following: + * + * * + * * + * * + * +36: MTRR mask 1 63:32 + * +32: MTRR mask 1 31:0 + * +28: MTRR base 1 63:32 + * +24: MTRR base 1 31:0 + * +20: MTRR mask 0 63:32 + * +16: MTRR mask 0 31:0 + * +12: MTRR base 0 63:32 + * +8: MTRR base 0 31:0 + * +4: Number of MTRRs to setup (described above) + * +0: Number of variable MTRRs to clear + */ + + /* Clear all of the variable MTRRs. */ + popl %ebx + movl $MTRRphysBase_MSR(0), %ecx + clr %eax + clr %edx + +1: + testl %ebx, %ebx + jz 1f + wrmsr /* Write MTRR base. */ + inc %ecx + wrmsr /* Write MTRR mask. */ + inc %ecx + dec %ebx + jmp 1b + +1: + /* Get number of MTRRs. */ + popl %ebx + movl $MTRRphysBase_MSR(0), %ecx +2: + testl %ebx, %ebx + jz 2f + + /* Low 32 bits of MTRR base. */ + popl %eax + /* Upper 32 bits of MTRR base. */ + popl %edx + /* Write MTRR base. */ + wrmsr + inc %ecx + /* Low 32 bits of MTRR mask. */ + popl %eax + /* Upper 32 bits of MTRR mask. */ + popl %edx + /* Write MTRR mask. */ + wrmsr + inc %ecx + + dec %ebx + jmp 2b +2: + post_code(0x39) + + /* And enable cache again after setting MTRRs. */ + movl %cr0, %eax + andl $~(CR0_CacheDisable | CR0_NoWriteThrough), %eax + movl %eax, %cr0 + + post_code(0x3a) + + /* Enable MTRR. */ + movl $MTRRdefType_MSR, %ecx + rdmsr + orl $MTRRdefTypeEn, %eax + wrmsr + + post_code(0x3b) + + /* Invalidate the cache again. */ + invd + + post_code(0x3c) + +__main: + post_code(POST_PREPARE_RAMSTAGE) + cld /* Clear direction flag. */ + call after_cache_as_ram + diff --git a/src/drivers/intel/fsp1_1/cache_as_ram.inc b/src/drivers/intel/fsp1_1/cache_as_ram.inc index 2349985326..dd45221030 100644 --- a/src/drivers/intel/fsp1_1/cache_as_ram.inc +++ b/src/drivers/intel/fsp1_1/cache_as_ram.inc @@ -28,10 +28,6 @@ * performs the final stage of initialization. */ -#include <cpu/x86/mtrr.h> -#include <cpu/x86/cache.h> -#include <cpu/x86/post_code.h> -#include <cbmem.h> #define LHLT_DELAY 0x50000 /* I/O delay between post codes on failure */ @@ -125,12 +121,10 @@ CAR_init_done: * mm1: high 32-bits of TSC value */ - /* Create fsp_car_context on stack. */ + /* Create cache_as_ram_params on stack */ pushl %edx /* bootloader CAR end */ pushl %ecx /* bootloader CAR begin */ pushl %ebp /* FSP_INFO_HEADER */ - /* Create cache_as_ram_params on stack */ - pushl %esp /* chipset_context -> fsp_car_context */ pushl %edi /* bist */ movd %mm1, %eax pushl %eax /* tsc[63:32] */ @@ -154,122 +148,10 @@ CAR_init_done: before_romstage: post_code(0x23) - /* Call romstage_main(struct cache_as_ram_params *) */ - call romstage_main - - /* - * eax: New stack address - * ebx: FSP_INFO_HEADER address - */ - - /* Switch to the stack in RAM */ - movl %eax, %esp - - /* Calculate TempRamExit entry into FSP */ - movl %ebx, %ebp - mov 0x40(%ebp), %eax - add 0x1c(%ebp), %eax - - /* Build the call frame */ - pushl $0 - - /* Call TempRamExit */ - call *%eax - add $4, %esp - cmp $0, %eax - jne halt3 - - /* Display the MTRRs */ - call soc_display_mtrrs - - /* - * The stack contents are initialized in src/soc/intel/common/stack.c - * to be the following: - * - * * - * * - * * - * +36: MTRR mask 1 63:32 - * +32: MTRR mask 1 31:0 - * +28: MTRR base 1 63:32 - * +24: MTRR base 1 31:0 - * +20: MTRR mask 0 63:32 - * +16: MTRR mask 0 31:0 - * +12: MTRR base 0 63:32 - * +8: MTRR base 0 31:0 - * +4: Number of MTRRs to setup (described above) - * +0: Number of variable MTRRs to clear - */ - - /* Clear all of the variable MTRRs. */ - popl %ebx - movl $MTRRphysBase_MSR(0), %ecx - clr %eax - clr %edx - -1: - testl %ebx, %ebx - jz 1f - wrmsr /* Write MTRR base. */ - inc %ecx - wrmsr /* Write MTRR mask. */ - inc %ecx - dec %ebx - jmp 1b - -1: - /* Get number of MTRRs. */ - popl %ebx - movl $MTRRphysBase_MSR(0), %ecx -2: - testl %ebx, %ebx - jz 2f - - /* Low 32 bits of MTRR base. */ - popl %eax - /* Upper 32 bits of MTRR base. */ - popl %edx - /* Write MTRR base. */ - wrmsr - inc %ecx - /* Low 32 bits of MTRR mask. */ - popl %eax - /* Upper 32 bits of MTRR mask. */ - popl %edx - /* Write MTRR mask. */ - wrmsr - inc %ecx - - dec %ebx - jmp 2b -2: - post_code(0x39) - - /* And enable cache again after setting MTRRs. */ - movl %cr0, %eax - andl $~(CR0_CacheDisable | CR0_NoWriteThrough), %eax - movl %eax, %cr0 - - post_code(0x3a) - - /* Enable MTRR. */ - movl $MTRRdefType_MSR, %ecx - rdmsr - orl $MTRRdefTypeEn, %eax - wrmsr - - post_code(0x3b) - - /* Invalidate the cache again. */ - invd - - post_code(0x3c) - -__main: - post_code(POST_PREPARE_RAMSTAGE) - cld /* Clear direction flag. */ - call romstage_after_car + /* Call cache_as_ram_main(struct cache_as_ram_params *) */ + call cache_as_ram_main +#include "after_raminit.S" movb $0x69, %ah jmp .Lhlt @@ -304,17 +186,6 @@ halt2: movb $0xBB, %ah jmp .Lhlt -halt3: - /* - * Failures for post code BC - failed in TempRamExit - * - * 0x00 - FSP_SUCCESS: Temp RAM Exit completed successfully. - * 0x02 - FSP_INVALID_PARAMETER: Input parameters are invalid. - * 0x03 - FSP_UNSUPPORTED: The FSP calling conditions were not met. - * 0x07 - FSP_DEVICE_ERROR: Temp RAM Exit failed. - */ - movb $0xBC, %ah - .Lhlt: xchg %al, %ah #if IS_ENABLED(CONFIG_POST_IO) diff --git a/src/drivers/intel/fsp1_1/car.c b/src/drivers/intel/fsp1_1/car.c new file mode 100644 index 0000000000..9f87983668 --- /dev/null +++ b/src/drivers/intel/fsp1_1/car.c @@ -0,0 +1,85 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google Inc. + * + * 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; version 2 of the License. + * + * 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. + */ + +#include <console/console.h> +#include <ec/google/chromeec/ec.h> +#include <fsp/car.h> +#include <soc/intel/common/util.h> +#include <timestamp.h> + +asmlinkage void *cache_as_ram_main(struct cache_as_ram_params *car_params) +{ + /* Initialize timestamp book keeping only once. */ + timestamp_init(car_params->tsc); + + /* Call into pre-console init code then initialize console. */ + car_soc_pre_console_init(); + car_mainboard_pre_console_init(); + console_init(); + + printk(BIOS_DEBUG, "FSP TempRamInit successful\n"); + + printk(BIOS_SPEW, "bist: 0x%08x\n", car_params->bist); + printk(BIOS_SPEW, "tsc: 0x%016llx\n", car_params->tsc); + + if (car_params->bootloader_car_start != CONFIG_DCACHE_RAM_BASE || + car_params->bootloader_car_end != + (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE)) { + printk(BIOS_INFO, "CAR mismatch: %08x--%08x vs %08lx--%08lx\n", + CONFIG_DCACHE_RAM_BASE, + CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE, + (long)car_params->bootloader_car_start, + (long)car_params->bootloader_car_end); + } + + car_soc_post_console_init(); + car_mainboard_post_console_init(); + + /* Ensure the EC is in the right mode for recovery */ + if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)) + google_chromeec_early_init(); + + /* Return new stack value in ram back to assembly stub. */ + return cache_as_ram_stage_main(car_params->fih); +} + +asmlinkage void after_cache_as_ram(void *chipset_context) +{ + timestamp_add_now(TS_FSP_TEMP_RAM_EXIT_END); + printk(BIOS_DEBUG, "FspTempRamExit returned successfully\n"); + soc_display_mtrrs(); + + after_cache_as_ram_stage(); +} + +void __attribute__((weak)) car_mainboard_pre_console_init(void) +{ +} + +void __attribute__((weak)) car_soc_pre_console_init(void) +{ +} + +void __attribute__((weak)) car_mainboard_post_console_init(void) +{ +} + +void __attribute__((weak)) car_soc_post_console_init(void) +{ +} diff --git a/src/drivers/intel/fsp1_1/include/fsp/car.h b/src/drivers/intel/fsp1_1/include/fsp/car.h new file mode 100644 index 0000000000..8234b37ea8 --- /dev/null +++ b/src/drivers/intel/fsp1_1/include/fsp/car.h @@ -0,0 +1,52 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google Inc. + * + * 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; version 2 of the License. + * + * 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. + */ + +#ifndef FSP1_1_CAR_H +#define FSP1_1_CAR_H + +#include <arch/cpu.h> +#include <fsp/api.h> +#include <stdint.h> + +/* cache-as-ram support for FSP 1.1. */ +struct cache_as_ram_params { + uint64_t tsc; + uint32_t bist; + FSP_INFO_HEADER *fih; + uintptr_t bootloader_car_start; + uintptr_t bootloader_car_end; +}; + +/* Entry points from the cache-as-ram assembly code. */ +asmlinkage void *cache_as_ram_main(struct cache_as_ram_params *car_params); +asmlinkage void after_cache_as_ram(void *chipset_context); +/* Per stage calls from the above two functions. The void * return from + * cache_as_ram_stage_main() is the stack pointer to use in ram after + * exiting cache-as-ram mode. */ +void *cache_as_ram_stage_main(FSP_INFO_HEADER *fih); +void after_cache_as_ram_stage(void); + +/* Mainboard and SoC initialization prior to console. */ +void car_mainboard_pre_console_init(void); +void car_soc_pre_console_init(void); +/* Mainboard and SoC initialization post console initialization. */ +void car_mainboard_post_console_init(void); +void car_soc_post_console_init(void); + +#endif diff --git a/src/drivers/intel/fsp1_1/include/fsp/util.h b/src/drivers/intel/fsp1_1/include/fsp/util.h index 0919c660d0..b3772a2598 100644 --- a/src/drivers/intel/fsp1_1/include/fsp/util.h +++ b/src/drivers/intel/fsp1_1/include/fsp/util.h @@ -28,13 +28,6 @@ #include <program_loading.h> #include <commonlib/region.h> -/* cache-as-ram context for FSP 1.1. */ -struct fsp_car_context { - FSP_INFO_HEADER *fih; - uintptr_t bootloader_car_start; - uintptr_t bootloader_car_end; -}; - /* find_fsp() should only be called from assembly code. */ FSP_INFO_HEADER *find_fsp(uintptr_t fsp_base_address); /* Set FSP's runtime information. */ |