diff options
Diffstat (limited to 'src/soc/amd')
| -rw-r--r-- | src/soc/amd/picasso/Makefile.inc | 15 | ||||
| -rw-r--r-- | src/soc/amd/picasso/bootblock/bootblock.c | 105 | ||||
| -rw-r--r-- | src/soc/amd/picasso/cache_as_ram.S | 20 |
3 files changed, 26 insertions, 114 deletions
diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc index bb24c67b05..e8c022fcda 100644 --- a/src/soc/amd/picasso/Makefile.inc +++ b/src/soc/amd/picasso/Makefile.inc @@ -37,17 +37,12 @@ subdirs-y += ../../../cpu/x86/mtrr subdirs-y += ../../../cpu/x86/pae subdirs-y += ../../../cpu/x86/smm -bootblock-$(CONFIG_STONEYRIDGE_UART) += uart.c +# TODO: Make coreboot modifications so bootblock can be removed. This soc +# also selects C_ENVIRONMENT_BOOTBLOCK to enforce certain codepaths +# in romstage. As a result, the bootblock build also needs a +# dummy cache_as_ram.S +bootblock-y += cache_as_ram.S bootblock-y += bootblock/bootblock.c -bootblock-y += gpio.c -bootblock-y += i2c.c -bootblock-y += monotonic_timer.c -bootblock-y += pmutil.c -bootblock-y += reset.c -bootblock-y += tsc_freq.c -bootblock-y += southbridge.c -bootblock-$(CONFIG_SPI_FLASH) += spi.c -bootblock-$(CONFIG_HAVE_SMI_HANDLER) += smi_util.c romstage-y += i2c.c romstage-y += romstage.c diff --git a/src/soc/amd/picasso/bootblock/bootblock.c b/src/soc/amd/picasso/bootblock/bootblock.c index 9239030d6c..62e4e1589f 100644 --- a/src/soc/amd/picasso/bootblock/bootblock.c +++ b/src/soc/amd/picasso/bootblock/bootblock.c @@ -1,9 +1,6 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2016 Intel Corporation.. - * Copyright (C) 2017 Advanced Micro Devices - * * 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. @@ -14,109 +11,9 @@ * GNU General Public License for more details. */ -#include <stdint.h> -#include <assert.h> -#include <console/console.h> -#include <cpu/x86/msr.h> -#include <cpu/amd/msr.h> -#include <cpu/x86/mtrr.h> -#include <smp/node.h> #include <bootblock_common.h> -#include <amdblocks/agesawrapper.h> -#include <amdblocks/agesawrapper_call.h> -#include <soc/pci_devs.h> -#include <soc/cpu.h> -#include <soc/northbridge.h> -#include <soc/southbridge.h> -#include <amdblocks/psp.h> -#include <timestamp.h> -#include <halt.h> - -#if CONFIG_PI_AGESA_TEMP_RAM_BASE < 0x100000 -#error "Error: CONFIG_PI_AGESA_TEMP_RAM_BASE must be >= 1MB" -#endif -#if CONFIG_PI_AGESA_CAR_HEAP_BASE < 0x100000 -#error "Error: CONFIG_PI_AGESA_CAR_HEAP_BASE must be >= 1MB" -#endif - -/* Set the MMIO Configuration Base Address, Bus Range, and misc MTRRs. */ -static void amd_initmmio(void) -{ - msr_t mmconf; - msr_t mtrr_cap = rdmsr(MTRR_CAP_MSR); - int mtrr; - - mmconf.hi = 0; - mmconf.lo = CONFIG_MMCONF_BASE_ADDRESS | MMIO_RANGE_EN - | fms(CONFIG_MMCONF_BUS_NUMBER) << MMIO_BUS_RANGE_SHIFT; - wrmsr(MMIO_CONF_BASE, mmconf); - - /* - * todo: AGESA currently writes variable MTRRs. Once that is - * corrected, un-hardcode this MTRR. - * - * Be careful not to use get_free_var_mtrr/set_var_mtrr pairs - * where all cores execute the path. Both cores within a compute - * unit share MTRRs. Programming core0 has the appearance of - * modifying core1 too. Using the pair again will create - * duplicate copies. - */ - mtrr = (mtrr_cap.lo & MTRR_CAP_VCNT) - SOC_EARLY_VMTRR_FLASH; - set_var_mtrr(mtrr, FLASH_BASE_ADDR, CONFIG_ROM_SIZE, MTRR_TYPE_WRPROT); - - mtrr = (mtrr_cap.lo & MTRR_CAP_VCNT) - SOC_EARLY_VMTRR_CAR_HEAP; - set_var_mtrr(mtrr, CONFIG_PI_AGESA_CAR_HEAP_BASE, - CONFIG_PI_AGESA_HEAP_SIZE, MTRR_TYPE_WRBACK); - - mtrr = (mtrr_cap.lo & MTRR_CAP_VCNT) - SOC_EARLY_VMTRR_TEMPRAM; - set_var_mtrr(mtrr, CONFIG_PI_AGESA_TEMP_RAM_BASE, - CONFIG_PI_AGESA_HEAP_SIZE, MTRR_TYPE_UNCACHEABLE); -} asmlinkage void bootblock_c_entry(uint64_t base_timestamp) { - amd_initmmio(); - /* - * Call lib/bootblock.c main with BSP, shortcut for APs - */ - if (!boot_cpu()) { - void (*ap_romstage_entry)(void) = - (void (*)(void))get_ap_entry_ptr(); - - ap_romstage_entry(); /* execution does not return */ - halt(); - } - - /* TSC cannot be relied upon. Override the TSC value passed in. */ - bootblock_main_with_timestamp(timestamp_get(), NULL, 0); -} - -void bootblock_soc_early_init(void) -{ - /* - * This call (sb_reset_i2c_slaves) was originally early at - * bootblock_c_entry, but had to be moved here. There was an - * unexplained delay in the middle of the i2c transaction when - * we had it in bootblock_c_entry. Moving it to this point - * (or adding delays) fixes the issue. It seems like the processor - * just pauses but we don't know why. - */ - sb_reset_i2c_slaves(); - bootblock_fch_early_init(); - post_code(0x90); -} - -void bootblock_soc_init(void) -{ - if (CONFIG(STONEYRIDGE_UART)) - assert(CONFIG_UART_FOR_CONSOLE >= 0 - && CONFIG_UART_FOR_CONSOLE <= 1); - - u32 val = cpuid_eax(1); - printk(BIOS_DEBUG, "Family_Model: %08x\n", val); - - bootblock_fch_init(); - - /* Initialize any early i2c buses. */ - i2c_soc_early_init(); + /* This function is here for building/linking only */ } diff --git a/src/soc/amd/picasso/cache_as_ram.S b/src/soc/amd/picasso/cache_as_ram.S new file mode 100644 index 0000000000..28690628d6 --- /dev/null +++ b/src/soc/amd/picasso/cache_as_ram.S @@ -0,0 +1,20 @@ +/* + * This file is part of the coreboot 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; 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. + */ + +/* + * TODO: This is a dummy file for making bootblock build and link. At some + * point, this should be removed from picasso since bootblock is + * ignored. + */ +.global bootblock_pre_c_entry +bootblock_pre_c_entry: |