diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-10-10 14:21:23 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-12 17:09:21 +0100 |
| commit | 23b0053586974e0db70349a272d8cc09167fb4cb (patch) | |
| tree | 1fa83fb40811ea1b4261d97ed36dbc8fc4428c11 /src/drivers/spi/spi_flash.c | |
| parent | a571c70c14a86d242be39fc12610b2519499379f (diff) | |
| download | coreboot-23b0053586974e0db70349a272d8cc09167fb4cb.tar.xz | |
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 <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1775
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/drivers/spi/spi_flash.c')
| -rw-r--r-- | src/drivers/spi/spi_flash.c | 10 |
1 files changed, 9 insertions, 1 deletions
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); |