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authorKyösti Mälkki <kyosti.malkki@gmail.com>2014-06-29 16:17:33 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2014-07-14 19:42:49 +0200
commit1110495de926db4b21b9969da522e5270c67f115 (patch)
tree04a04b6e797173c1b3639a4c4ecb90c544ab84ab /src/include
parent77d1280d0c866a9f85e62f74c43fe8d021a4ff39 (diff)
downloadcoreboot-1110495de926db4b21b9969da522e5270c67f115.tar.xz
SPI: Split writes using spi_crop_chunk()
SPI controllers in Intel and AMD bridges have a slightly different restriction on how long transactions they can handle. Change-Id: I3d149d4b7e7e9633482a153d5e380a86c553d871 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6163 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/spi-generic.h2
-rw-r--r--src/include/spi_flash.h8
2 files changed, 2 insertions, 8 deletions
diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h
index 6c62de6d1d..3b10ae9f49 100644
--- a/src/include/spi-generic.h
+++ b/src/include/spi-generic.h
@@ -168,6 +168,8 @@ void spi_cs_deactivate(struct spi_slave *slave);
*/
void spi_set_speed(struct spi_slave *slave, uint32_t hz);
+unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len);
+
/*-----------------------------------------------------------------------
* Write 8 bits, then read 8 bits.
* slave: The SPI slave we're communicating with
diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h
index 61c931e32c..70ca784c90 100644
--- a/src/include/spi_flash.h
+++ b/src/include/spi_flash.h
@@ -39,14 +39,6 @@
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
-#define CONFIG_ICH_SPI
-#ifdef CONFIG_ICH_SPI
-#define CONTROLLER_PAGE_LIMIT 64
-#else
-/* any number larger than 4K would do, actually */
-#define CONTROLLER_PAGE_LIMIT ((int)(~0U>>1))
-#endif
-
struct spi_flash {
struct spi_slave *spi;