diff options
| author | Marcin Krzeminski <marcin.krzeminski@nokia.com> | 2016-03-30 17:27:24 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-03-30 17:27:24 +0100 |
| commit | 1435bcd6122d490a135c86cafefdccee3fb7c634 (patch) | |
| tree | 22d8aa6428c2a2948470f0307ed13de3766d0fcd /hw/block/m25p80.c | |
| parent | d31912bd7eabae09cf2e69becb17e6773c3794ef (diff) | |
block: m25p80: at25128a/at25256a models
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1458719789-29868-12-git-send-email-marcin.krzeminski@nokia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/block/m25p80.c')
| -rw-r--r-- | hw/block/m25p80.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index bdd87fa629..906b71257e 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -47,7 +47,7 @@ /* set to allow the page program command to write 0s back to 1. Useful for * modelling EEPROM with SPI flash command set */ -#define WR_1 0x100 +#define EEPROM 0x100 /* 16 MiB max in 3 byte address mode */ #define MAX_3BYTES_SIZE 0x1000000 @@ -123,6 +123,12 @@ static const FlashPartInfo known_devices[] = { { INFO("at45db081d", 0x1f2500, 0, 64 << 10, 16, ER_4K) }, + /* Atmel EEPROMS - it is assumed, that don't care bit in command + * is set to 0. Block protection is not supported. + */ + { INFO("at25128a-nonjedec", 0x0, 0, 1, 131072, EEPROM) }, + { INFO("at25256a-nonjedec", 0x0, 0, 1, 262144, EEPROM) }, + /* EON -- en25xxx */ { INFO("en25f32", 0x1c3116, 0, 64 << 10, 64, ER_4K) }, { INFO("en25p32", 0x1c2016, 0, 64 << 10, 64, 0) }, @@ -450,7 +456,7 @@ void flash_write8(Flash *s, uint64_t addr, uint8_t data) " -> %" PRIx8 "\n", addr, prev, data); } - if (s->pi->flags & WR_1) { + if (s->pi->flags & EEPROM) { s->storage[s->cur_addr] = data; } else { s->storage[s->cur_addr] &= data; @@ -462,6 +468,11 @@ void flash_write8(Flash *s, uint64_t addr, uint8_t data) static inline int get_addr_length(Flash *s) { + /* check if eeprom is in use */ + if (s->pi->flags == EEPROM) { + return 2; + } + switch (s->cmd_in_progress) { case PP4: case READ4: |