From 4e0ec592553fd94e14a239eeb05ba9ccb668b814 Mon Sep 17 00:00:00 2001 From: Frans Hendriks Date: Thu, 6 Jun 2019 10:07:17 +0200 Subject: {drivers,soc/intel/braswell}: Implement C_ENVIRONMENT_BOOTBLOCK support No C_ENVIRONMENT_BOOTBLOCK support for Braswell is available. Enable support and add required files for the Braswell Bootblock in C. The next changes are made support C_ENVIRONMENT_BOOTBLOCK: - Add car_stage_entry() function bootblock-c_entry() functions. - Specify config DCACHE_BSP_STACK_SIZE and C_ENV_BOOTBLOCK_SIZE. - Add bootblock_c_entry(). - Move init from car_soc_XXX_console_init() to bootblock_soc_XXX_Init() Removed the unused cache_as_ram_main() and weak car_XXX_XXX_console_init() BUG=NA TEST=Booting Embedded Linux on Facebook FBG-1701 Building Google Banos Change-Id: Iab48ad72f1514c93f20d70db5ef4fd8fa2383e8c Signed-off-by: Frans Hendriks Reviewed-on: https://review.coreboot.org/c/coreboot/+/29662 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans --- src/drivers/intel/fsp1_1/Makefile.inc | 3 +- src/drivers/intel/fsp1_1/cache_as_ram.S | 214 +++++++++++++++++++++++++++++ src/drivers/intel/fsp1_1/cache_as_ram.inc | 212 ---------------------------- src/drivers/intel/fsp1_1/car.c | 28 ---- src/drivers/intel/fsp1_1/include/fsp/car.h | 8 -- 5 files changed, 215 insertions(+), 250 deletions(-) create mode 100644 src/drivers/intel/fsp1_1/cache_as_ram.S delete mode 100644 src/drivers/intel/fsp1_1/cache_as_ram.inc (limited to 'src/drivers') diff --git a/src/drivers/intel/fsp1_1/Makefile.inc b/src/drivers/intel/fsp1_1/Makefile.inc index 93f3b59d4b..10877b9482 100644 --- a/src/drivers/intel/fsp1_1/Makefile.inc +++ b/src/drivers/intel/fsp1_1/Makefile.inc @@ -21,6 +21,7 @@ verstage-y += fsp_util.c verstage-$(CONFIG_SEPARATE_VERSTAGE) += verstage.c bootblock-y += bootblock.c +bootblock-$(CONFIG_USE_GENERIC_FSP_CAR_INC) += cache_as_ram.S bootblock-y += fsp_util.c romstage-y += car.c @@ -42,8 +43,6 @@ ramstage-$(CONFIG_MMA) += mma_core.c CPPFLAGS_common += -Isrc/drivers/intel/fsp1_1/include -cpu_incs-$(CONFIG_USE_GENERIC_FSP_CAR_INC) += $(src)/drivers/intel/fsp1_1/cache_as_ram.inc - postcar-y += stage_cache.c ifneq ($(CONFIG_SKIP_FSP_CAR),y) postcar-y += temp_ram_exit.c diff --git a/src/drivers/intel/fsp1_1/cache_as_ram.S b/src/drivers/intel/fsp1_1/cache_as_ram.S new file mode 100644 index 0000000000..3460b9da34 --- /dev/null +++ b/src/drivers/intel/fsp1_1/cache_as_ram.S @@ -0,0 +1,214 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2000,2007 Ronald G. Minnich + * Copyright (C) 2007-2008 coresystems GmbH + * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC. + * Copyright (C) 2015 Intel Corp. + * Copyright (C) 2018-2019 Eltan B.V. + * + * 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. + */ + +#include + +/* + * Replacement for cache_as_ram.inc when using the FSP binary. This code + * locates the FSP binary, initializes the cache as RAM and performs the + * first stage of initialization. Next this code switches the stack from + * the cache to RAM and then disables the cache as RAM. Finally this code + * performs the final stage of initialization. + */ + +#define LHLT_DELAY 0x50000 /* I/O delay between post codes on failure */ + +.global bootblock_pre_c_entry +bootblock_pre_c_entry: + /* + * Per FSP1.1 specs, following registers are preserved: + * EBX, EDI, ESI, EBP, MM0, MM1 + * + * Shift values to release MM2. + * mm0 -> ebx: BIST value + * mm1 -> mm0: low 32-bits of TSC value + * mm2 -> mm1: high 32-bits of TSC value + */ + movd %mm0, %ebx + movd %mm1, %eax + movd %eax, %mm0 + movd %mm2, %eax + movd %eax, %mm1 + +cache_as_ram: + post_code(0x20) + + /* + * Find the FSP binary in cbfs. + * Make a fake stack that has the return value back to this code. + */ + lea fake_fsp_stack, %esp + jmp find_fsp +find_fsp_ret: + /* Save the FSP location */ + mov %eax, %ebp + + /* + * Only when a valid FSP binary is found at CONFIG_FSP_LOC is + * the returned FSP_INFO_HEADER structure address above the base + * address of FSP binary specified by the CONFIG_FSP_LOC value. + * All of the error values are in the 0x8xxxxxxx range which are + * below the CONFIG_FSP_LOC value. + */ + cmp $CONFIG_FSP_LOC, %eax + jbe halt1 + + post_code(POST_FSP_TEMP_RAM_INIT) + + /* Calculate entry into FSP */ + mov 0x30(%ebp), %eax /* Load TempRamInitEntry */ + add 0x1c(%ebp), %eax /* add in the offset for FSP */ + + /* + * Pass early init variables on a fake stack (no memory yet) + * as well as the return location + */ + lea CAR_init_stack, %esp + + /* + * BIST value is zero + * eax: TempRamInitApi address + * ebx: BIST value + * ebp: FSP_INFO_HEADER address + * esi: Not used + * mm0: low 32-bits of TSC value + * mm1: high 32-bits of TSC value + */ + + /* call FSP binary to setup temporary stack */ + jmp *%eax + +CAR_init_done: + + /* + * ebp: FSP_INFO_HEADER address + * ebx: BIST value + * ecx: Temp RAM base + * edx: Temp RAM top + * mm0: low 32-bits of TSC value + * mm1: high 32-bits of TSC value + */ + + cmp $0, %eax + jne halt2 + + /* Setup bootloader stack */ + movl %edx, %esp + + /* + * ebp: FSP_INFO_HEADER address + * ebx: BIST value + * ecx: Temp RAM base + * edx: Temp RAM top + * esp: Top of stack in temp RAM + * mm0: low 32-bits of TSC value + * mm1: high 32-bits of TSC value + */ + + /* coreboot assumes stack/heap region will be zero */ + cld + movl %ecx, %edi + neg %ecx + /* Clear up to Temp Ram top. */ + add %edx, %ecx + shrl $2, %ecx + xorl %eax, %eax + rep stosl + + /* Need to align stack to 16 bytes at call instruction. Account for + the pushes below. */ + andl $0xfffffff0, %esp + subl $8, %esp + + /* Push initial timestamp on the stack */ + movd %mm1, %eax + pushl %eax /* tsc[63:32] */ + movd %mm0, %eax + pushl %eax /* tsc[31:0] */ + +before_romstage: + post_code(0x2A) + + /* Call bootblock_c_entry(uint64_t base_timestamp) */ + call bootblock_c_entry + + /* Never reached */ + +halt1: + /* + * Failures for postcode 0xBA - failed in fsp_fih_early_find() + * + * Values are: + * 0x01 - FV signature, "_FVH" not present + * 0x02 - FFS GUID not present + * 0x03 - FSP INFO Header not found + * 0x04 - ImageBase does not equal CONFIG_FSP_LOC - Is the FSP rebased + * to a different location, or does it need to be? + * 0x05 - FSP INFO Header signature "FSPH" not found + * 0x06 - FSP Image ID is not the expected ID. + */ + movb $0xBA, %ah + jmp .Lhlt + +halt2: + /* + * Failures for postcode 0xBB - failed in the FSP: + * + * 0x00 - FSP_SUCCESS: Temp RAM was initialized 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 initialization failed + * 0x0E - FSP_NOT_FOUND: No valid microcode was found in the microcode + * region. + * 0x14 - FSP_ALREADY_STARTED: Temp RAM initialization has been invoked + */ + movb $0xBB, %ah + jmp .Lhlt + +.Lhlt: + xchg %al, %ah +#if CONFIG(POST_IO) + outb %al, $CONFIG_POST_IO_PORT +#else + post_code(POST_DEAD_CODE) +#endif + movl $LHLT_DELAY, %ecx +.Lhlt_Delay: + outb %al, $0xED + loop .Lhlt_Delay + jmp .Lhlt + +/* + * esp is set to this location so that the call into and return from the FSP + * in find_fsp will work. + */ + .align 4 +fake_fsp_stack: + .long find_fsp_ret + .long CONFIG_FSP_LOC /* FSP base address */ + +CAR_init_params: + .long CONFIG_CPU_MICROCODE_CBFS_LOC /* Microcode Location */ + .long CONFIG_CPU_MICROCODE_CBFS_LEN /* Microcode Length */ + .long 0xFFFFFFFF - CONFIG_ROM_SIZE + 1 /* Firmware Location */ + .long CONFIG_ROM_SIZE /* Firmware Length */ + +CAR_init_stack: + .long CAR_init_done + .long CAR_init_params diff --git a/src/drivers/intel/fsp1_1/cache_as_ram.inc b/src/drivers/intel/fsp1_1/cache_as_ram.inc deleted file mode 100644 index 493dbc8d04..0000000000 --- a/src/drivers/intel/fsp1_1/cache_as_ram.inc +++ /dev/null @@ -1,212 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2000,2007 Ronald G. Minnich - * 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. - */ - -/* - * Replacement for cache_as_ram.inc when using the FSP binary. This code - * locates the FSP binary, initializes the cache as RAM and performs the - * first stage of initialization. Next this code switches the stack from - * the cache to RAM and then disables the cache as RAM. Finally this code - * performs the final stage of initialization. - */ - -/* I/O delay between post codes on failure */ -#define LHLT_DELAY 0x50000 - /* - * Per FSP1.1 specs, following registers are preserved: - * EBX, EDI, ESI, EBP, MM0, MM1 - * - * Shift values to release MM2. - * mm0 -> ebx: BIST value - * mm1 -> mm0: low 32-bits of TSC value - * mm2 -> mm1: high 32-bits of TSC value - */ - movd %mm0, %ebx - movd %mm1, %eax - movd %eax, %mm0 - movd %mm2, %eax - movd %eax, %mm1 - -cache_as_ram: - post_code(0x20) - - /* - * Find the FSP binary in cbfs. - * Make a fake stack that has the return value back to this code. - */ - lea fake_fsp_stack, %esp - jmp find_fsp -find_fsp_ret: - /* Save the FSP location */ - mov %eax, %ebp - - /* - * Only when a valid FSP binary is found at CONFIG_FSP_LOC is - * the returned FSP_INFO_HEADER structure address above the base - * address of FSP binary specified by the CONFIG_FSP_LOC value. - * All of the error values are in the 0x8xxxxxxx range which are - * below the CONFIG_FSP_LOC value. - */ - cmp $CONFIG_FSP_LOC, %eax - jbe halt1 - - post_code(POST_FSP_TEMP_RAM_INIT) - - /* Calculate entry into FSP */ - mov 0x30(%ebp), %eax /* Load TempRamInitEntry */ - add 0x1c(%ebp), %eax /* add in the offset for FSP */ - - /* - * Pass early init variables on a fake stack (no memory yet) - * as well as the return location - */ - lea CAR_init_stack, %esp - - /* - * BIST value is zero - * eax: TempRamInitApi address - * ebx: BIST value - * ebp: FSP_INFO_HEADER address - * esi: Not used - * mm0: low 32-bits of TSC value - * mm1: high 32-bits of TSC value - */ - - /* call FSP binary to setup temporary stack */ - jmp *%eax - -CAR_init_done: - - /* - * ebp: FSP_INFO_HEADER address - * ebx: BIST value - * ecx: Temp RAM base - * edx: Temp RAM top - * mm0: low 32-bits of TSC value - * mm1: high 32-bits of TSC value - */ - - cmp $0, %eax - jne halt2 - - /* Setup bootloader stack */ - movl %edx, %esp - - /* - * ebp: FSP_INFO_HEADER address - * ebx: BIST value - * ecx: Temp RAM base - * edx: Temp RAM top - * esp: Top of stack in temp RAM - * mm0: low 32-bits of TSC value - * mm1: high 32-bits of TSC value - */ - - /* coreboot assumes stack/heap region will be zero */ - cld - movl %ecx, %edi - neg %ecx - /* Clear up to Temp Ram top. */ - add %edx, %ecx - shrl $2, %ecx - xorl %eax, %eax - rep stosl - - /* Need to align stack to 16 bytes at call instruction. Account for - the pushes below. */ - andl $0xfffffff0, %esp - subl $4, %esp - - /* Push BIST and initial timestamp on the stack */ - pushl %ebx /* bist */ - movd %mm1, %eax - pushl %eax /* tsc[63:32] */ - movd %mm0, %eax - pushl %eax /* tsc[31:0] */ - -before_romstage: - post_code(0x2A) - - /* Call bootblock_c_entry_bist(uint64_t base_timestamp, uint32_t bist) - in cpu/intel/car/romstage.c */ - call bootblock_c_entry_bist - - movb $0x69, %ah - jmp .Lhlt - -halt1: - /* - * Failures for postcode 0xBA - failed in fsp_fih_early_find() - * - * Values are: - * 0x01 - FV signature, "_FVH" not present - * 0x02 - FFS GUID not present - * 0x03 - FSP INFO Header not found - * 0x04 - ImageBase does not equal CONFIG_FSP_LOC - Is the FSP rebased - * to a different location, or does it need to be? - * 0x05 - FSP INFO Header signature "FSPH" not found - * 0x06 - FSP Image ID is not the expected ID. - */ - movb $0xBA, %ah - jmp .Lhlt - -halt2: - /* - * Failures for postcode 0xBB - failed in the FSP: - * - * 0x00 - FSP_SUCCESS: Temp RAM was initialized 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 initialization failed - * 0x0E - FSP_NOT_FOUND: No valid microcode was found in the microcode - * region. - * 0x14 - FSP_ALREADY_STARTED: Temp RAM initialization has been invoked - */ - movb $0xBB, %ah - jmp .Lhlt - -.Lhlt: - xchg %al, %ah -#if CONFIG(POST_IO) - outb %al, $CONFIG_POST_IO_PORT -#else - post_code(POST_DEAD_CODE) -#endif - movl $LHLT_DELAY, %ecx -.Lhlt_Delay: - outb %al, $0xED - loop .Lhlt_Delay - jmp .Lhlt - -/* - * esp is set to this location so that the call into and return from the FSP - * in find_fsp will work. - */ - .align 4 -fake_fsp_stack: - .long find_fsp_ret - .long CONFIG_FSP_LOC /* FSP base address */ - -CAR_init_params: - .long CONFIG_CPU_MICROCODE_CBFS_LOC /* Microcode Location */ - .long CONFIG_CPU_MICROCODE_CBFS_LEN /* Microcode Length */ - .long 0xFFFFFFFF - CONFIG_ROM_SIZE + 1 /* Firmware Location */ - .long CONFIG_ROM_SIZE /* Firmware Length */ - -CAR_init_stack: - .long CAR_init_done - .long CAR_init_params diff --git a/src/drivers/intel/fsp1_1/car.c b/src/drivers/intel/fsp1_1/car.c index dd17664036..67ed099695 100644 --- a/src/drivers/intel/fsp1_1/car.c +++ b/src/drivers/intel/fsp1_1/car.c @@ -101,18 +101,6 @@ void mainboard_romstage_entry(unsigned long bist) * is still enabled. We can directly access work buffer here. */ struct prog fsp = PROG_INIT(PROG_REFCODE, "fsp.bin"); - if (!CONFIG(C_ENVIRONMENT_BOOTBLOCK)) { - /* Call into pre-console init code then initialize console. */ - car_soc_pre_console_init(); - car_mainboard_pre_console_init(); - console_init(); - - display_mtrrs(); - - car_soc_post_console_init(); - car_mainboard_post_console_init(); - } - if (prog_locate(&fsp)) die_with_post_code(POST_INVALID_CBFS, "Unable to locate fsp.bin"); @@ -125,19 +113,3 @@ void mainboard_romstage_entry(unsigned long bist) cache_as_ram_stage_main(fih); } - -void __weak car_mainboard_pre_console_init(void) -{ -} - -void __weak car_soc_pre_console_init(void) -{ -} - -void __weak car_mainboard_post_console_init(void) -{ -} - -void __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 index 8d7a683672..3d99fa6dc9 100644 --- a/src/drivers/intel/fsp1_1/include/fsp/car.h +++ b/src/drivers/intel/fsp1_1/include/fsp/car.h @@ -24,12 +24,4 @@ * 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); - -/* 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 -- cgit v1.2.3