diff options
| author | Marcin Krzeminski <marcin.krzeminski@nokia.com> | 2016-03-30 17:27:23 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-03-30 17:27:23 +0100 |
| commit | 63e47f6f72cf0490447c3e08b62c8040680367fe (patch) | |
| tree | 8728dc02acaa05234869a426e3a2b2e8239b2c90 /hw/block/m25p80.c | |
| parent | aeb83edbf3d67b737b6cfd198b1b0cfcbb7327e8 (diff) | |
block: m25p80: Fast read and 4bytes commands
Adds fast read and 4bytes commands family.
This work is based on Pawel Lenkow patch from v1.
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1458719789-29868-9-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 | 50 |
1 files changed, 46 insertions, 4 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 04e8730fa4..1e615caab7 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -243,20 +243,29 @@ typedef enum { JEDEC_READ = 0x9f, BULK_ERASE = 0xc7, - READ = 0x3, - FAST_READ = 0xb, + READ = 0x03, + READ4 = 0x13, + FAST_READ = 0x0b, + FAST_READ4 = 0x0c, DOR = 0x3b, + DOR4 = 0x3c, QOR = 0x6b, + QOR4 = 0x6c, DIOR = 0xbb, + DIOR4 = 0xbc, QIOR = 0xeb, + QIOR4 = 0xec, - PP = 0x2, + PP = 0x02, + PP4 = 0x12, DPP = 0xa2, QPP = 0x32, ERASE_4K = 0x20, + ERASE4_4K = 0x21, ERASE_32K = 0x52, ERASE_SECTOR = 0xd8, + ERASE4_SECTOR = 0xdc, EN_4BYTE_ADDR = 0xB7, EX_4BYTE_ADDR = 0xE9, @@ -379,6 +388,7 @@ static void flash_erase(Flash *s, int offset, FlashCMD cmd) switch (cmd) { case ERASE_4K: + case ERASE4_4K: len = 4 << 10; capa_to_assert = ER_4K; break; @@ -387,6 +397,7 @@ static void flash_erase(Flash *s, int offset, FlashCMD cmd) capa_to_assert = ER_32K; break; case ERASE_SECTOR: + case ERASE4_SECTOR: len = s->pi->sector_size; break; case BULK_ERASE: @@ -445,7 +456,20 @@ void flash_write8(Flash *s, uint64_t addr, uint8_t data) static inline int get_addr_length(Flash *s) { - return s->four_bytes_address_mode ? 4 : 3; + switch (s->cmd_in_progress) { + case PP4: + case READ4: + case QIOR4: + case ERASE4_4K: + case ERASE4_SECTOR: + case FAST_READ4: + case DOR4: + case QOR4: + case DIOR4: + return 4; + default: + return s->four_bytes_address_mode ? 4 : 3; + } } static void complete_collecting_data(Flash *s) @@ -469,19 +493,28 @@ static void complete_collecting_data(Flash *s) case DPP: case QPP: case PP: + case PP4: s->state = STATE_PAGE_PROGRAM; break; case READ: + case READ4: case FAST_READ: + case FAST_READ4: case DOR: + case DOR4: case QOR: + case QOR4: case DIOR: + case DIOR4: case QIOR: + case QIOR4: s->state = STATE_READ; break; case ERASE_4K: + case ERASE4_4K: case ERASE_32K: case ERASE_SECTOR: + case ERASE4_SECTOR: flash_erase(s, s->cur_addr, s->cmd_in_progress); break; case WRSR: @@ -568,12 +601,16 @@ static void decode_new_cmd(Flash *s, uint32_t value) switch (value) { case ERASE_4K: + case ERASE4_4K: case ERASE_32K: case ERASE_SECTOR: + case ERASE4_SECTOR: case READ: + case READ4: case DPP: case QPP: case PP: + case PP4: s->needed_bytes = get_addr_length(s); s->pos = 0; s->len = 0; @@ -581,8 +618,11 @@ static void decode_new_cmd(Flash *s, uint32_t value) break; case FAST_READ: + case FAST_READ4: case DOR: + case DOR4: case QOR: + case QOR4: s->needed_bytes = get_addr_length(s); if (((s->pi->jedec >> 16) & 0xFF) == JEDEC_NUMONYX) { /* Dummy cycles modeled with bytes writes instead of bits */ @@ -594,6 +634,7 @@ static void decode_new_cmd(Flash *s, uint32_t value) break; case DIOR: + case DIOR4: switch ((s->pi->jedec >> 16) & 0xFF) { case JEDEC_WINBOND: case JEDEC_SPANSION: @@ -610,6 +651,7 @@ static void decode_new_cmd(Flash *s, uint32_t value) break; case QIOR: + case QIOR4: switch ((s->pi->jedec >> 16) & 0xFF) { case JEDEC_WINBOND: case JEDEC_SPANSION: |