diff options
| -rw-r--r-- | src/mainboard/intel/apollolake_rvp/Kconfig | 9 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/Kconfig | 5 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/mmap_boot.c | 74 |
4 files changed, 91 insertions, 0 deletions
diff --git a/src/mainboard/intel/apollolake_rvp/Kconfig b/src/mainboard/intel/apollolake_rvp/Kconfig index 52d3777b35..9920b46fdf 100644 --- a/src/mainboard/intel/apollolake_rvp/Kconfig +++ b/src/mainboard/intel/apollolake_rvp/Kconfig @@ -17,4 +17,13 @@ config MAINBOARD_VENDOR string default "Intel" +config IFD_BIOS_END + hex + default 0x6FF000 + +config IFD_BIOS_START + hex + default 0x1000 + + endif diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig index c32b80f38f..2f6101582f 100644 --- a/src/soc/intel/apollolake/Kconfig +++ b/src/soc/intel/apollolake/Kconfig @@ -85,4 +85,9 @@ config C_ENV_BOOTBLOCK_SIZE hex default 0x8000 +# This SoC does not map SPI flash like many previous SoC. Therefore we provide +# a custom media driver that facilitates mapping +config X86_TOP4G_BOOTMEDIA_MAP + bool + default n endif diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc index 76fa4c7050..e27fd27128 100644 --- a/src/soc/intel/apollolake/Makefile.inc +++ b/src/soc/intel/apollolake/Makefile.inc @@ -11,6 +11,7 @@ bootblock-y += bootblock/bootblock.c bootblock-y += bootblock/cache_as_ram.S bootblock-y += bootblock/bootblock.c bootblock-y += gpio.c +bootblock-y += mmap_boot.c bootblock-y += placeholders.c bootblock-y += tsc_freq.c bootblock-$(CONFIG_SOC_UART_DEBUG) += uart_early.c @@ -18,11 +19,13 @@ bootblock-$(CONFIG_SOC_UART_DEBUG) += uart_early.c romstage-y += placeholders.c romstage-y += gpio.c romstage-$(CONFIG_SOC_UART_DEBUG) += uart_early.c +romstage-y += mmap_boot.c smm-y += placeholders.c ramstage-y += placeholders.c ramstage-y += gpio.c ramstage-$(CONFIG_SOC_UART_DEBUG) += uart_early.c +ramstage-y += mmap_boot.c CPPFLAGS_common += -I$(src)/soc/intel/apollolake/include diff --git a/src/soc/intel/apollolake/mmap_boot.c b/src/soc/intel/apollolake/mmap_boot.c new file mode 100644 index 0000000000..36259243f4 --- /dev/null +++ b/src/soc/intel/apollolake/mmap_boot.c @@ -0,0 +1,74 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corp. + * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.) + * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <boot_device.h> +#include <cbfs.h> +#include <commonlib/region.h> +#include <console/console.h> +#include <fmap.h> + +/* The 128 KiB right below 4G are decoded by readonly SRAM, not boot media */ +#define IFD_BIOS_MAX_MAPPED (CONFIG_IFD_BIOS_END - 128 * KiB) +#define IFD_MAPPED_SIZE (IFD_BIOS_MAX_MAPPED - CONFIG_IFD_BIOS_START) +#define IFD_BIOS_SIZE (CONFIG_IFD_BIOS_END - CONFIG_IFD_BIOS_START) + +/* + * If Apollo Lake is configured to boot from SPI flash "BIOS" region + * (as defined in descriptor) is mapped below 4GiB. Form a pointer for + * the base. + */ +#define VIRTUAL_ROM_BASE ((uintptr_t)(0x100000000ULL - IFD_BIOS_SIZE)) + +static const struct mem_region_device shadow_dev = MEM_REGION_DEV_INIT( + VIRTUAL_ROM_BASE, IFD_BIOS_MAX_MAPPED +); + +/* + * This is how we translate physical SPI flash address space into CPU memory-mapped space. In + * essence this means "BIOS" region (usually starts at flash physical 0x1000 is mapped to + * 4G - IFD_BIOS_SIZE. + */ +static const struct xlate_region_device real_dev = XLATE_REGION_INIT( + &shadow_dev.rdev, CONFIG_IFD_BIOS_START, + IFD_MAPPED_SIZE, CONFIG_ROM_SIZE +); + +const struct region_device *boot_device_ro(void) +{ + return &real_dev.rdev; +} + +static int iafw_boot_region_properties(struct cbfs_props *props) +{ + struct region regn; + + /* use fmap to locate CBFS area */ + if (fmap_locate_area("COREBOOT", ®n)) + return -1; + + props->offset = region_offset(®n); + props->size = region_sz(®n); + + printk(BIOS_DEBUG, "CBFS @ %zx size %zx\n", props->offset, props->size); + + return 0; +} + +/* + * Named cbfs_master_header_locator so that it overrides the default, but + * incompatible locator in cbfs.c + */ +const struct cbfs_locator cbfs_master_header_locator = { + .name = "IAFW Locator", + .locate = iafw_boot_region_properties, +}; |