diff options
Diffstat (limited to 'src/soc/amd/common/block/s3')
| -rw-r--r-- | src/soc/amd/common/block/s3/Kconfig | 5 | ||||
| -rw-r--r-- | src/soc/amd/common/block/s3/Makefile.inc | 5 | ||||
| -rw-r--r-- | src/soc/amd/common/block/s3/spi.c | 39 |
3 files changed, 49 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/s3/Kconfig b/src/soc/amd/common/block/s3/Kconfig new file mode 100644 index 0000000000..85863ca42f --- /dev/null +++ b/src/soc/amd/common/block/s3/Kconfig @@ -0,0 +1,5 @@ +config SOC_AMD_COMMON_BLOCK_S3 + bool + default n + help + Select this option to add S3 related functions to the build. diff --git a/src/soc/amd/common/block/s3/Makefile.inc b/src/soc/amd/common/block/s3/Makefile.inc new file mode 100644 index 0000000000..f19cb2e3b4 --- /dev/null +++ b/src/soc/amd/common/block/s3/Makefile.inc @@ -0,0 +1,5 @@ +ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_S3),y) + +ramstage-$(CONFIG_HAVE_ACPI_RESUME) += spi.c + +endif diff --git a/src/soc/amd/common/block/s3/spi.c b/src/soc/amd/common/block/s3/spi.c new file mode 100644 index 0000000000..f72416ad97 --- /dev/null +++ b/src/soc/amd/common/block/s3/spi.c @@ -0,0 +1,39 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Advanced Micro Devices, 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. + */ + +#include <console/console.h> +#include <spi-generic.h> +#include <spi_flash.h> +#include <amdblocks/spi.h> + +void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len) +{ + struct spi_flash flash; + + spi_init(); + if (spi_flash_probe(0, 0, &flash)) { + printk(BIOS_DEBUG, "Could not find SPI device\n"); + /* Dont make flow stop. */ + return; + } + + spi_flash_volatile_group_begin(&flash); + + spi_flash_erase(&flash, pos, size); + spi_flash_write(&flash, pos, sizeof(len), &len); + spi_flash_write(&flash, pos + sizeof(len), len, buf); + + spi_flash_volatile_group_end(&flash); +} |