diff options
| author | Michael Walle <michael@walle.cc> | 2010-05-01 19:34:06 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2010-05-21 11:52:08 +0200 |
| commit | 0b2ec6fcfdad1dd9ce74c50e2d752afbb627b0d0 (patch) | |
| tree | 67770a56a521aa9279d39222c381bf0cea0ac630 /hw/pflash_cfi01.c | |
| parent | 81a204e44356a4e147ee4bcfded3d25793c5a2ad (diff) | |
pflash_cfi01: add device ID read command
Add support to read manufacturer and device ID. For everything else (eg.
lock bits) 0 is returned.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'hw/pflash_cfi01.c')
| -rw-r--r-- | hw/pflash_cfi01.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c index 20fe93d63c..19e13d632d 100644 --- a/hw/pflash_cfi01.c +++ b/hw/pflash_cfi01.c @@ -166,6 +166,22 @@ static uint32_t pflash_read (pflash_t *pfl, target_phys_addr_t offset, ret = pfl->status; DPRINTF("%s: status %x\n", __func__, ret); break; + case 0x90: + switch (boff) { + case 0: + ret = pfl->ident[0] << 8 | pfl->ident[1]; + DPRINTF("%s: Manufacturer Code %04x\n", __func__, ret); + break; + case 1: + ret = pfl->ident[2] << 8 | pfl->ident[3]; + DPRINTF("%s: Device ID Code %04x\n", __func__, ret); + break; + default: + DPRINTF("%s: Read Device Information boff=%x\n", __func__, boff); + ret = 0; + break; + } + break; case 0x98: /* Query mode */ if (boff > pfl->cfi_len) ret = 0; @@ -283,6 +299,10 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t offset, DPRINTF("%s: Read status register\n", __func__); pfl->cmd = cmd; return; + case 0x90: /* Read Device ID */ + DPRINTF("%s: Read Device information\n", __func__); + pfl->cmd = cmd; + return; case 0x98: /* CFI query */ DPRINTF("%s: CFI query\n", __func__); break; |