diff options
Diffstat (limited to 'src/soc/samsung/exynos5250')
| -rw-r--r-- | src/soc/samsung/exynos5250/Kconfig | 55 | ||||
| -rw-r--r-- | src/soc/samsung/exynos5250/alternate_cbfs.c | 28 | ||||
| -rw-r--r-- | src/soc/samsung/exynos5250/alternate_cbfs.h | 12 | ||||
| -rw-r--r-- | src/soc/samsung/exynos5250/cpu.h | 3 | ||||
| -rw-r--r-- | src/soc/samsung/exynos5250/memlayout.ld | 46 |
5 files changed, 62 insertions, 82 deletions
diff --git a/src/soc/samsung/exynos5250/Kconfig b/src/soc/samsung/exynos5250/Kconfig index 3c7d6c4e77..4126ec1e59 100644 --- a/src/soc/samsung/exynos5250/Kconfig +++ b/src/soc/samsung/exynos5250/Kconfig @@ -32,59 +32,4 @@ config CBFS_ROM_OFFSET hex "offset of CBFS data in ROM" default 0x0A080 -config SYS_SDRAM_BASE - hex - default 0x40000000 - -# Example SRAM/iRAM map for Exynos5250 platform: -# -# 0x0202_0000: vendor-provided BL1 -# 0x0202_3400: bootblock, assume up to 32KB in size -# 0x0203_0000: romstage, assume up to 128KB in size. -# 0x0207_8000: stack pointer - -config BOOTBLOCK_BASE - hex - default 0x02023400 - -config ROMSTAGE_BASE - hex - default 0x02030000 - -config RAMSTAGE_BASE - hex - default SYS_SDRAM_BASE - -# Stack may reside in either IRAM or DRAM. We will define it to live -# at the top of IRAM for now. -# -# Stack grows downward, push operation stores register contents in -# consecutive memory locations ending just below SP -config STACK_TOP - hex - default 0x02078000 - -config STACK_BOTTOM - hex - default 0x02074000 - -config STACK_SIZE - hex - default 0x4000 - -# TODO We may probably move this to board-specific implementation files instead -# of KConfig values. -config CBFS_CACHE_ADDRESS - hex "memory address to put CBFS cache data" - default 0x0205c000 - -config CBFS_CACHE_SIZE - hex "size of CBFS cache data" - default 0x00018000 - -# TTB needs to be aligned to 16KB. -config TTB_BUFFER - hex "memory address of the TTB buffer" - default 0x02058000 - endif diff --git a/src/soc/samsung/exynos5250/alternate_cbfs.c b/src/soc/samsung/exynos5250/alternate_cbfs.c index 10b33f0c2b..e46221cd2d 100644 --- a/src/soc/samsung/exynos5250/alternate_cbfs.c +++ b/src/soc/samsung/exynos5250/alternate_cbfs.c @@ -22,6 +22,7 @@ #include <cbfs.h> /* This driver serves as a CBFS media source. */ #include <stdlib.h> #include <string.h> +#include <symbols.h> #include <console/console.h> #include "alternate_cbfs.h" #include "power.h" @@ -33,14 +34,14 @@ * by the IROM / BL1, so this code has nothing to do with them. * * The third transfer is a valid CBFS image that contains only the romstage, - * and must be small enough to fit into alternate_cbfs_size[__BOOT_BLOCK__] in + * and must be small enough to fit into the PRE_RAM CBFS cache in * IRAM. It is loaded when this function gets called in the boot block, and * the normal CBFS code extracts the romstage from it. * * The fourth transfer is also a CBFS image, but can be of arbitrary size and * should contain all available stages/payloads/etc. It is loaded when this * function is called a second time at the end of the romstage, and copied to - * alternate_cbfs_buffer[!__BOOT_BLOCK__] in DRAM. It will reside there for the + * the romstage/ramstage CBFS cache in DRAM. It will reside there for the * rest of the firmware's lifetime and all subsequent stages (which will not * have __PRE_RAM__ defined) can just directly reference it there. */ @@ -60,12 +61,12 @@ static int usb_cbfs_open(struct cbfs_media *media) /* * We need to trust the host/irom to copy the image to our - * alternate_cbfs_buffer address... there is no way to control or even + * _cbfs_cache address... there is no way to control or even * check the transfer size or target address from our side. */ printk(BIOS_DEBUG, "USB A-A transfer successful, CBFS image should now" - " be at %p\n", alternate_cbfs_buffer); + " be at %p\n", _cbfs_cache); first_run = 0; #endif return 0; @@ -86,11 +87,11 @@ static int sdmmc_cbfs_open(struct cbfs_media *media) * In the bootblock, we just copy the small part that fits in the buffer * and hope that it's enough (since the romstage is currently always the * first component in the image, this should work out). In the romstage, - * we copy until our buffer is full (currently 12M) to avoid the pain of + * we copy until our cache is full (currently 12M) to avoid the pain of * figuring out the true image size from in here. Since this is mainly a * developer/debug boot mode, those shortcomings should be bearable. */ - const u32 count = alternate_cbfs_size / 512; + const u32 count = _cbfs_cache_size / 512; static int first_run = 1; int (*irom_load_sdmmc)(u32 start, u32 count, void *dst) = *irom_sdmmc_read_blocks_ptr; @@ -98,13 +99,13 @@ static int sdmmc_cbfs_open(struct cbfs_media *media) if (!first_run) return 0; - if (!irom_load_sdmmc(1, count, alternate_cbfs_buffer)) { + if (!irom_load_sdmmc(1, count, _cbfs_cache)) { printk(BIOS_EMERG, "Unable to load CBFS image from SDMMC!\n"); return -1; } printk(BIOS_DEBUG, "SDMMC read successful, CBFS image should now be" - " at %p\n", alternate_cbfs_buffer); + " at %p\n", _cbfs_cache); first_run = 0; #endif return 0; @@ -115,16 +116,16 @@ static int alternate_cbfs_close(struct cbfs_media *media) { return 0; } static size_t alternate_cbfs_read(struct cbfs_media *media, void *dest, size_t offset, size_t count) { - ASSERT(offset + count < alternate_cbfs_size); - memcpy(dest, alternate_cbfs_buffer + offset, count); + ASSERT(offset + count < _cbfs_cache_size); + memcpy(dest, _cbfs_cache + offset, count); return count; } static void *alternate_cbfs_map(struct cbfs_media *media, size_t offset, size_t count) { - ASSERT(offset + count < alternate_cbfs_size); - return alternate_cbfs_buffer + offset; + ASSERT(offset + count < _cbfs_cache_size); + return _cbfs_cache + offset; } static void *alternate_cbfs_unmap(struct cbfs_media *media, @@ -166,8 +167,7 @@ int init_default_cbfs_media(struct cbfs_media *media) return initialize_exynos_sdmmc_cbfs_media(media); case OM_STAT_SPI: return initialize_exynos_spi_cbfs_media(media, - (void*)CONFIG_CBFS_CACHE_ADDRESS, - CONFIG_CBFS_CACHE_SIZE); + _cbfs_cache, _cbfs_cache_size); default: printk(BIOS_EMERG, "Exynos OM_STAT value 0x%x not supported!\n", exynos_power->om_stat); diff --git a/src/soc/samsung/exynos5250/alternate_cbfs.h b/src/soc/samsung/exynos5250/alternate_cbfs.h index a064b62e88..fe1af46d72 100644 --- a/src/soc/samsung/exynos5250/alternate_cbfs.h +++ b/src/soc/samsung/exynos5250/alternate_cbfs.h @@ -36,16 +36,4 @@ static u32 * const iram_secondary_base = (u32 *)0x02020018; #define OM_STAT_SPI 0x14 #define OM_STAT_MASK 0x7f -#if defined(__PRE_RAM__) && !defined(__ROMSTAGE__) - /* A small space in IRAM to hold the romstage-only image */ - static void * const alternate_cbfs_buffer = - (void *)CONFIG_CBFS_CACHE_ADDRESS; - static size_t const alternate_cbfs_size = CONFIG_CBFS_CACHE_SIZE; -#else - /* Just put this anywhere in RAM that's far enough from anything else */ - /* TODO: Find a better way to "reserve" this region? */ - static void * const alternate_cbfs_buffer = (void *)0x77400000; - static size_t const alternate_cbfs_size = 0xc00000; -#endif - #endif diff --git a/src/soc/samsung/exynos5250/cpu.h b/src/soc/samsung/exynos5250/cpu.h index 10f9ef4d21..c9c5832359 100644 --- a/src/soc/samsung/exynos5250/cpu.h +++ b/src/soc/samsung/exynos5250/cpu.h @@ -21,6 +21,7 @@ #define CPU_SAMSUNG_EXYNOS5250_CPU_H #include <arch/io.h> +#include <symbols.h> /* Base address registers */ #define EXYNOS5_GPIO_PART6_BASE 0x03860000 /* Z<6:0> */ @@ -76,7 +77,7 @@ extern struct tmu_info exynos5250_tmu_info; /* TODO clean up defines. */ #define FB_SIZE_KB 4096 -#define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10) +#define RAM_BASE_KB ((uintptr_t)_dram/KiB) #define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL) static inline u32 get_fb_base_kb(void) diff --git a/src/soc/samsung/exynos5250/memlayout.ld b/src/soc/samsung/exynos5250/memlayout.ld new file mode 100644 index 0000000000..010bb7b64d --- /dev/null +++ b/src/soc/samsung/exynos5250/memlayout.ld @@ -0,0 +1,46 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <memlayout.h> + +#include <arch/header.ld> + +/* + * Note: The BootROM loads the 8K BL1 at [0x2020000:0x2022000), so the bootblock + * must be placed after that. After the handoff, the space can be reclaimed. + */ + +SECTIONS +{ + SRAM_START(0x2020000) + /* 13K hole, includes BL1 */ + BOOTBLOCK(0x2023400, 32K) + /* 19K hole */ + ROMSTAGE(0x2030000, 128K) + /* 32K hole */ + TTB(0x2058000, 16K) + PRERAM_CBFS_CACHE(0x205C000, 96K) + STACK(0x2074000, 16K) + SRAM_END(0x2078000) + + DRAM_START(0x40000000) + RAMSTAGE(0x40000000, 128K) + POSTRAM_CBFS_CACHE(0x41000000, 8M) + DMA_COHERENT(0x77300000, 1M) +} |