From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52715) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1alHZJ-0004hF-7W for qemu-devel@nongnu.org; Wed, 30 Mar 2016 10:58:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1alHZI-00053Q-0Y for qemu-devel@nongnu.org; Wed, 30 Mar 2016 10:58:01 -0400 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:56293) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1alHZH-00050z-Pp for qemu-devel@nongnu.org; Wed, 30 Mar 2016 10:57:59 -0400 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.84_2) (envelope-from ) id 1alHZE-0001CG-3a for qemu-devel@nongnu.org; Wed, 30 Mar 2016 15:57:56 +0100 From: Peter Maydell Date: Wed, 30 Mar 2016 15:57:45 +0100 Message-Id: <1459349869-25448-14-git-send-email-peter.maydell@linaro.org> In-Reply-To: <1459349869-25448-1-git-send-email-peter.maydell@linaro.org> References: <1459349869-25448-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PULL 13/17] block: m25p80: at25128a/at25256a models List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org From: Marcin Krzeminski Signed-off-by: Marcin Krzeminski Reviewed-by: Peter Crosthwaite Message-id: 1458719789-29868-12-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell --- hw/block/m25p80.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index bdd87fa..906b712 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: -- 1.9.1