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| author | Nico Huber <nico.h@gmx.de> | 2018-03-13 18:14:52 +0100 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2018-10-03 13:14:57 +0000 |
| commit | 86bddb5d52659f23531282db137350cbf7fb5992 (patch) | |
| tree | 2f2b2da3f475065c9e86218b79ded18547c6b2c3 /flash.h | |
| parent | 57dbd64b33143964bb8eb91d33d72a2147f0091c (diff) | |
| download | flashrom-86bddb5d52659f23531282db137350cbf7fb5992.tar.gz flashrom-86bddb5d52659f23531282db137350cbf7fb5992.tar.bz2 flashrom-86bddb5d52659f23531282db137350cbf7fb5992.zip | |
Enable 4BA mode for Spansion 25FL256S
4BA mode is entered by setting bit 7 for the extended address register.
Change-Id: I807bf55d65763a9f48a6a3377f14f4e5288a7a4c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Tested-by: Michael Fuckner <michael@fuckner.net>
Reviewed-on: https://review.coreboot.org/25133
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'flash.h')
| -rw-r--r-- | flash.h | 14 |
1 files changed, 8 insertions, 6 deletions
@@ -117,21 +117,23 @@ enum write_granularity { #define FEATURE_QPI (1 << 9) #define FEATURE_4BA_ENTER (1 << 10) /**< Can enter/exit 4BA mode with instructions 0xb7/0xe9 w/o WREN */ #define FEATURE_4BA_ENTER_WREN (1 << 11) /**< Can enter/exit 4BA mode with instructions 0xb7/0xe9 after WREN */ -#define FEATURE_4BA_EXT_ADDR (1 << 12) /**< Regular 3-byte operations can be used by writing the most +#define FEATURE_4BA_ENTER_EAR7 (1 << 12) /**< Can enter/exit 4BA mode by setting bit7 of the ext addr reg */ +#define FEATURE_4BA_EXT_ADDR (1 << 13) /**< Regular 3-byte operations can be used by writing the most significant address byte into an extended address register. */ -#define FEATURE_4BA_READ (1 << 13) /**< Native 4BA read instruction (0x13) is supported. */ -#define FEATURE_4BA_FAST_READ (1 << 14) /**< Native 4BA fast read instruction (0x0c) is supported. */ -#define FEATURE_4BA_WRITE (1 << 15) /**< Native 4BA byte program (0x12) is supported. */ +#define FEATURE_4BA_READ (1 << 14) /**< Native 4BA read instruction (0x13) is supported. */ +#define FEATURE_4BA_FAST_READ (1 << 15) /**< Native 4BA fast read instruction (0x0c) is supported. */ +#define FEATURE_4BA_WRITE (1 << 16) /**< Native 4BA byte program (0x12) is supported. */ /* 4BA Shorthands */ #define FEATURE_4BA_NATIVE (FEATURE_4BA_READ | FEATURE_4BA_FAST_READ | FEATURE_4BA_WRITE) #define FEATURE_4BA (FEATURE_4BA_ENTER | FEATURE_4BA_EXT_ADDR | FEATURE_4BA_NATIVE) #define FEATURE_4BA_WREN (FEATURE_4BA_ENTER_WREN | FEATURE_4BA_EXT_ADDR | FEATURE_4BA_NATIVE) +#define FEATURE_4BA_EAR7 (FEATURE_4BA_ENTER_EAR7 | FEATURE_4BA_EXT_ADDR | FEATURE_4BA_NATIVE) /* * Most flash chips are erased to ones and programmed to zeros. However, some * other flash chips, such as the ENE KB9012 internal flash, work the opposite way. */ -#define FEATURE_ERASED_ZERO (1 << 16) -#define FEATURE_NO_ERASE (1 << 17) +#define FEATURE_ERASED_ZERO (1 << 17) +#define FEATURE_NO_ERASE (1 << 18) #define ERASED_VALUE(flash) (((flash)->chip->feature_bits & FEATURE_ERASED_ZERO) ? 0x00 : 0xff) |