diff options
Diffstat (limited to 'sfdp.c')
| -rw-r--r-- | sfdp.c | 65 |
1 files changed, 39 insertions, 26 deletions
@@ -78,8 +78,10 @@ static int sfdp_add_uniform_eraser(struct flashctx *flash, uint8_t opcode, uint3 uint32_t total_size = flash->total_size * 1024; erasefunc_t *erasefn = spi_get_erasefn_from_opcode(opcode); - if (erasefn == NULL || block_size == 0 || total_size % block_size != 0) { - msg_cdbg("%s: invalid input\n", __func__); + if (erasefn == NULL || total_size == 0 || block_size == 0 || + total_size % block_size != 0) { + msg_cdbg("%s: invalid input, please report to " + "flashrom@flashrom.org\n", __func__); return 1; } @@ -89,11 +91,12 @@ static int sfdp_add_uniform_eraser(struct flashctx *flash, uint8_t opcode, uint3 if (eraser->eraseblocks[0].size == block_size && eraser->block_erase == erasefn) { msg_cdbg2(" Tried to add a duplicate block eraser: " - "%d x %d B with opcode 0x%02x\n", + "%d x %d B with opcode 0x%02x.\n", total_size/block_size, block_size, opcode); return 1; } - if (eraser->eraseblocks[0].size != 0 || !eraser->block_erase) { + if (eraser->eraseblocks[0].size != 0 || + eraser->block_erase != NULL) { msg_cspew(" Block Eraser %d is already occupied.\n", i); continue; @@ -115,11 +118,12 @@ static int sfdp_add_uniform_eraser(struct flashctx *flash, uint8_t opcode, uint3 static int sfdp_fill_flash(struct flashctx *flash, uint8_t *buf, uint16_t len) { + uint8_t opcode_4k_erase = 0xFF; uint32_t tmp32; uint8_t tmp8; uint32_t total_size; /* in bytes */ uint32_t block_size; - int dw, j; + int j; msg_cdbg("Parsing JEDEC flash parameter table... "); if (len != 9 * 4 && len != 4 * 4) { @@ -129,11 +133,10 @@ static int sfdp_fill_flash(struct flashctx *flash, uint8_t *buf, uint16_t len) msg_cdbg2("\n"); /* 1. double word */ - dw = 0; - tmp32 = buf[(4 * dw) + 0]; - tmp32 |= ((unsigned int)buf[(4 * dw) + 1]) << 8; - tmp32 |= ((unsigned int)buf[(4 * dw) + 2]) << 16; - tmp32 |= ((unsigned int)buf[(4 * dw) + 3]) << 24; + tmp32 = ((unsigned int)buf[(4 * 0) + 0]); + tmp32 |= ((unsigned int)buf[(4 * 0) + 1]) << 8; + tmp32 |= ((unsigned int)buf[(4 * 0) + 2]) << 16; + tmp32 |= ((unsigned int)buf[(4 * 0) + 3]) << 24; tmp8 = (tmp32 >> 17) & 0x3; switch (tmp8) { @@ -181,15 +184,17 @@ static int sfdp_fill_flash(struct flashctx *flash, uint8_t *buf, uint16_t len) } if ((tmp32 & 0x3) == 0x1) { - sfdp_add_uniform_eraser(flash, (tmp32 >> 8) & 0xFF, 4 * 1024); - } + opcode_4k_erase = (tmp32 >> 8) & 0xFF; + msg_cspew(" 4kB erase opcode is 0x%02x.\n", opcode_4k_erase); + /* add the eraser later, because we don't know total_size yet */ + } else + msg_cspew(" 4kB erase opcode is not defined.\n"); /* 2. double word */ - dw = 1; - tmp32 = buf[(4 * dw) + 0]; - tmp32 |= ((unsigned int)buf[(4 * dw) + 1]) << 8; - tmp32 |= ((unsigned int)buf[(4 * dw) + 2]) << 16; - tmp32 |= ((unsigned int)buf[(4 * dw) + 3]) << 24; + tmp32 = ((unsigned int)buf[(4 * 1) + 0]); + tmp32 |= ((unsigned int)buf[(4 * 1) + 1]) << 8; + tmp32 |= ((unsigned int)buf[(4 * 1) + 2]) << 16; + tmp32 |= ((unsigned int)buf[(4 * 1) + 3]) << 24; if (tmp32 & (1 << 31)) { msg_cdbg("Flash chip size >= 4 Gb/512 MB not supported.\n"); @@ -204,31 +209,38 @@ static int sfdp_fill_flash(struct flashctx *flash, uint8_t *buf, uint16_t len) return 1; } + if (opcode_4k_erase != 0xFF) + sfdp_add_uniform_eraser(flash, opcode_4k_erase, 4 * 1024); + /* FIXME: double words 3-7 contain unused fast read information */ if (len == 4 * 4) { - msg_cdbg("It seems like this chip supports the preliminary " + msg_cdbg(" It seems like this chip supports the preliminary " "Intel version of SFDP, skipping processing of double " "words 3-9.\n"); goto done; } - dw = 8; + /* 8. double word */ for (j = 0; j < 4; j++) { - /* 8 double words from the start + 2 words for every eraser */ - tmp8 = buf[(4 * dw) + (2 * j)]; + /* 7 double words from the start + 2 bytes for every eraser */ + tmp8 = buf[(4 * 7) + (j * 2)]; + msg_cspew(" Erase Sector Type %d Size: 0x%02x\n", j + 1, + tmp8); if (tmp8 == 0) { - msg_cdbg2(" Block eraser %d is unused.\n", j); + msg_cspew(" Erase Sector Type %d is unused.\n", j); continue; } if (tmp8 >= 31) { - msg_cdbg2(" Block size of eraser %d (2^%d) is too big " - "for flashrom.\n", j, tmp8); + msg_cdbg2(" Block size of erase Sector Type %d (2^%d) " + "is too big for flashrom.\n", j, tmp8); continue; } block_size = 1 << (tmp8); /* block_size = 2 ^ field */ - tmp8 = buf[(4 * dw) + (2 * j) + 1]; + tmp8 = buf[(4 * 7) + (j * 2) + 1]; + msg_cspew(" Erase Sector Type %d Opcode: 0x%02x\n", j + 1, + tmp8); sfdp_add_uniform_eraser(flash, tmp8, block_size); } @@ -332,7 +344,7 @@ int probe_spi_sfdp(struct flashctx *flash) if ((tmp32 % 8) == 0) { msg_cspew(" 0x%04x: ", tmp32); } - msg_cspew(" %02x", buf[tmp32]); + msg_cspew(" %02x", tbuf[tmp32]); if ((tmp32 % 8) == 7) { msg_cspew("\n"); continue; @@ -342,6 +354,7 @@ int probe_spi_sfdp(struct flashctx *flash) continue; } } + msg_cspew("\n"); if (i == 0) { /* Mandatory JEDEC SFDP parameter table */ if (hdrs[i].id != 0) |
