From 23b0053586974e0db70349a272d8cc09167fb4cb Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Wed, 10 Oct 2012 14:21:23 -0700 Subject: SPI: Fix and enable Fast Read support - Fix handling of 5-byte Fast Read command in the ICH SPI driver. This fix is ported from the U-boot driver. - Allow CONFIG_SPI_FLASH_NO_FAST_READ to be overridden by defining a name for the bool in Kconfig and removing the forced select in southbridge config - Fix use of CONFIG_SPI_FLASH_NO_FAST_READ in SPI drivers to use #if instead of #ifdef - Relocate flash functions in SMM so they are usable. This really only needs to happen for read function pointer since it uses a global function rather than a static one from the chip, but it is good to ensure the rest are set up correctly as well. Change-Id: Ic1bb0764cb111f96dd8a389d83b39fe8f5e72fbd Signed-off-by: Duncan Laurie Reviewed-on: http://review.coreboot.org/1775 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/drivers/spi/spi_flash.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'src/drivers/spi/spi_flash.c') diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c index 4757486bf5..7116cbfd99 100644 --- a/src/drivers/spi/spi_flash.c +++ b/src/drivers/spi/spi_flash.c @@ -281,7 +281,7 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, /* search the table for matches in shift and id */ for (i = 0; i < ARRAY_SIZE(flashes); ++i) if (flashes[i].shift == shift && flashes[i].idcode == *idp) { -#ifdef __SMM__ +#if CONFIG_SMM_TSEG && defined(__SMM__) /* Need to relocate this function */ tseg_relocate((void **)&flashes[i].probe); #endif @@ -296,6 +296,14 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, goto err_manufacturer_probe; } +#if CONFIG_SMM_TSEG && defined(__SMM__) + /* Ensure flash handlers are valid for TSEG */ + tseg_relocate((void **)&flash->read); + tseg_relocate((void **)&flash->write); + tseg_relocate((void **)&flash->erase); + tseg_relocate((void **)&flash->name); +#endif + printk(BIOS_INFO, "SF: Detected %s with page size %x, total %x\n", flash->name, flash->sector_size, flash->size); -- cgit v1.2.3