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| author | Nico Huber <nico.h@gmx.de> | 2017-10-14 18:00:20 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2017-12-28 10:45:46 +0000 |
| commit | a1672f829328e877d9b8dea7777f25e2eba52d0e (patch) | |
| tree | 8f90cab7e18bc875241ff66eef153b80e7c4a71b /flash.h | |
| parent | f43c654ad0dcb11b2738bbfac9246d09bb1949e5 (diff) | |
| download | flashrom-a1672f829328e877d9b8dea7777f25e2eba52d0e.tar.gz flashrom-a1672f829328e877d9b8dea7777f25e2eba52d0e.tar.bz2 flashrom-a1672f829328e877d9b8dea7777f25e2eba52d0e.zip | |
spi25: Enable native 4BA read and write using feature bits
Prefer the native 4BA instruction when they are supported. In this
case, override our logic to decide to use a 4BA address.
Change-Id: I2f6817ca198bf923671a7aa67e956e5477d71848
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/22385
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'flash.h')
| -rw-r--r-- | flash.h | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -122,6 +122,8 @@ enum write_granularity { #define FEATURE_4BA_SUPPORT (1 << 10) #define FEATURE_4BA_EXT_ADDR (1 << 11) /**< Regular 3-byte operations can be used by writing the most significant address byte into an extended address register. */ +#define FEATURE_4BA_READ (1 << 12) /**< Native 4BA read instruction (0x13) is supported. */ +#define FEATURE_4BA_WRITE (1 << 13) /**< Native 4BA byte program (0x12) is supported. */ enum test_state { OK = 0, |