diff options
Diffstat (limited to 'src/cpu/amd/pi/spi.c')
-rw-r--r-- | src/cpu/amd/pi/spi.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/cpu/amd/pi/spi.c b/src/cpu/amd/pi/spi.c new file mode 100644 index 0000000000..1c652fd295 --- /dev/null +++ b/src/cpu/amd/pi/spi.c @@ -0,0 +1,49 @@ +/* + * 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. + * + * 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 <console/console.h> +#include <spi-generic.h> +#include <spi_flash.h> + +#include "s3_resume.h" + +void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len) +{ + struct spi_flash *flash; + + spi_init(); + flash = spi_flash_probe(0, 0); + if (!flash) { + printk(BIOS_DEBUG, "Could not find SPI device\n"); + /* Dont make flow stop. */ + return; + } + + flash->spi->rw = SPI_WRITE_FLAG; + spi_claim_bus(flash->spi); + + flash->erase(flash, pos, size); + flash->write(flash, pos, sizeof(len), &len); + flash->write(flash, pos + sizeof(len), len, buf); + + flash->spi->rw = SPI_WRITE_FLAG; + spi_release_bus(flash->spi); + + return; +} |