From 57794ac1580fc5efee3ba01a0c3e4539bb58d088 Mon Sep 17 00:00:00 2001 From: Stefan Tauner Date: Sat, 29 Dec 2012 15:04:20 +0000 Subject: Add support for Atmel's AT25F series of SPI flash chips This adds support for the following chips: - AT25F512, AT25F512A, AT25F512B - AT25F1024, AT25F1024A - AT25F2048 - AT25F4096 Besides the definitions of the the chips in flashchips.c this includes - a dedicated probing method (probe_spi_at25f) - pretty printing methods (spi_prettyprint_status_register_at25f*), and - unlocking methods (spi_disable_blockprotect_at25f*) Corresponding to flashrom svn r1637. Signed-off-by: Stefan Tauner Acked-by: Stefan Tauner --- spi25_statusreg.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'spi25_statusreg.c') diff --git a/spi25_statusreg.c b/spi25_statusreg.c index 2e01c06d6..c0891576d 100644 --- a/spi25_statusreg.c +++ b/spi25_statusreg.c @@ -378,6 +378,40 @@ int spi_prettyprint_status_register_at25df_sec(struct flashctx *flash) return spi_prettyprint_status_register_at25df(flash); } +/* used for AT25F512, AT25F1024(A), AT25F2048 */ +int spi_prettyprint_status_register_at25f(struct flashctx *flash) +{ + uint8_t status; + + status = spi_read_status_register(flash); + spi_prettyprint_status_register_hex(status); + + spi_prettyprint_status_register_atmel_at25_wpen(status); + spi_prettyprint_status_register_bit(status, 6); + spi_prettyprint_status_register_bit(status, 5); + spi_prettyprint_status_register_bit(status, 4); + spi_prettyprint_status_register_bp(status, 1); + spi_prettyprint_status_register_welwip(status); + return 0; +} + +int spi_prettyprint_status_register_at25f512a(struct flashctx *flash) +{ + uint8_t status; + + status = spi_read_status_register(flash); + spi_prettyprint_status_register_hex(status); + + spi_prettyprint_status_register_atmel_at25_wpen(status); + spi_prettyprint_status_register_bit(status, 6); + spi_prettyprint_status_register_bit(status, 5); + spi_prettyprint_status_register_bit(status, 4); + spi_prettyprint_status_register_bit(status, 3); + spi_prettyprint_status_register_bp(status, 0); + spi_prettyprint_status_register_welwip(status); + return 0; +} + int spi_prettyprint_status_register_at25f512b(struct flashctx *flash) { uint8_t status = spi_read_status_register(flash); @@ -392,6 +426,21 @@ int spi_prettyprint_status_register_at25f512b(struct flashctx *flash) return 0; } +int spi_prettyprint_status_register_at25f4096(struct flashctx *flash) +{ + uint8_t status; + + status = spi_read_status_register(flash); + spi_prettyprint_status_register_hex(status); + + spi_prettyprint_status_register_atmel_at25_wpen(status); + spi_prettyprint_status_register_bit(status, 6); + spi_prettyprint_status_register_bit(status, 5); + spi_prettyprint_status_register_bp(status, 2); + spi_prettyprint_status_register_welwip(status); + return 0; +} + int spi_prettyprint_status_register_at25fs010(struct flashctx *flash) { uint8_t status = spi_read_status_register(flash); @@ -450,6 +499,16 @@ int spi_disable_blockprotect_at25df_sec(struct flashctx *flash) return spi_disable_blockprotect_at25df(flash); } +int spi_disable_blockprotect_at25f(struct flashctx *flash) +{ + return spi_disable_blockprotect_generic(flash, 0x0C, 1 << 7, 0); +} + +int spi_disable_blockprotect_at25f512a(struct flashctx *flash) +{ + return spi_disable_blockprotect_generic(flash, 0x04, 1 << 7, 0); +} + int spi_disable_blockprotect_at25f512b(struct flashctx *flash) { /* spi_disable_blockprotect_at25df is not really the right way to do @@ -458,6 +517,11 @@ int spi_disable_blockprotect_at25f512b(struct flashctx *flash) return spi_disable_blockprotect_at25df(flash); } +int spi_disable_blockprotect_at25f4096(struct flashctx *flash) +{ + return spi_disable_blockprotect_generic(flash, 0x1C, 1 << 7, 0); +} + int spi_disable_blockprotect_at25fs010(struct flashctx *flash) { return spi_disable_blockprotect_generic(flash, 0x6C, 1 << 7, 0); -- cgit v1.2.3