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Merge branch 'master' of git://git.denx.de/u-boot-spi

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This commit is contained in:
Tom Rini 2013-06-24 16:37:01 -04:00
commit f9c1456cf6
9 changed files with 373 additions and 152 deletions
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5
README
View File

@ -2520,6 +2520,11 @@ CBFS (Coreboot Filesystem) support
Define this option to include a destructive SPI flash
test ('sf test').
CONFIG_SPI_FLASH_BAR Ban/Extended Addr Reg
Define this option to use the Bank addr/Extended addr
support on SPI flashes which has size > 16Mbytes.
- SystemACE Support:
CONFIG_SYSTEMACE

9
drivers/mtd/spi/spansion.c
View File

@ -101,7 +101,7 @@ static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
.idcode2 = 0x4d01,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL129P_64K/S25FL128S",
.name = "S25FL129P_64K/S25FL128S_64K",
},
{
.idcode1 = 0x0219,
@ -110,6 +110,13 @@ static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
.nr_sectors = 512,
.name = "S25FL256S_64K",
},
{
.idcode1 = 0x0220,
.idcode2 = 0x4d01,
.pages_per_sector = 256,
.nr_sectors = 1024,
.name = "S25FL512S_64K",
},
};
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)

404
drivers/mtd/spi/spi_flash.c
View File

@ -68,108 +68,25 @@ int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
return spi_flash_read_write(spi, cmd, cmd_len, data, NULL, data_len);
}
int spi_flash_cmd_write_multi(struct spi_flash *flash, u32 offset,
size_t len, const void *buf)
{
unsigned long page_addr, byte_addr, page_size;
size_t chunk_len, actual;
int ret;
u8 cmd[4];
page_size = flash->page_size;
page_addr = offset / page_size;
byte_addr = offset % page_size;
ret = spi_claim_bus(flash->spi);
if (ret) {
debug("SF: unable to claim SPI bus\n");
return ret;
}
cmd[0] = CMD_PAGE_PROGRAM;
for (actual = 0; actual < len; actual += chunk_len) {
chunk_len = min(len - actual, page_size - byte_addr);
if (flash->spi->max_write_size)
chunk_len = min(chunk_len, flash->spi->max_write_size);
cmd[1] = page_addr >> 8;
cmd[2] = page_addr;
cmd[3] = byte_addr;
debug("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %zu\n",
buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len);
ret = spi_flash_cmd_write_enable(flash);
if (ret < 0) {
debug("SF: enabling write failed\n");
break;
}
ret = spi_flash_cmd_write(flash->spi, cmd, 4,
buf + actual, chunk_len);
if (ret < 0) {
debug("SF: write failed\n");
break;
}
ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
if (ret)
break;
byte_addr += chunk_len;
if (byte_addr == page_size) {
page_addr++;
byte_addr = 0;
}
}
spi_release_bus(flash->spi);
return ret;
}
int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
size_t cmd_len, void *data, size_t data_len)
{
struct spi_slave *spi = flash->spi;
int ret;
spi_claim_bus(spi);
ret = spi_flash_cmd_read(spi, cmd, cmd_len, data, data_len);
spi_release_bus(spi);
return ret;
}
int spi_flash_cmd_read_fast(struct spi_flash *flash, u32 offset,
size_t len, void *data)
{
u8 cmd[5];
/* Handle memory-mapped SPI */
if (flash->memory_map) {
memcpy(data, flash->memory_map + offset, len);
return 0;
}
cmd[0] = CMD_READ_ARRAY_FAST;
spi_flash_addr(offset, cmd);
cmd[4] = 0x00;
return spi_flash_read_common(flash, cmd, sizeof(cmd), data, len);
}
int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
u8 cmd, u8 poll_bit)
int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
{
struct spi_slave *spi = flash->spi;
unsigned long timebase;
int ret;
u8 status;
u8 check_status = 0x0;
u8 poll_bit = STATUS_WIP;
u8 cmd = flash->poll_cmd;
if (cmd == CMD_FLAG_STATUS) {
poll_bit = STATUS_PEC;
check_status = poll_bit;
}
ret = spi_xfer(spi, 8, &cmd, NULL, SPI_XFER_BEGIN);
if (ret) {
debug("SF: Failed to send command %02x: %d\n", cmd, ret);
debug("SF: fail to read %s status register\n",
cmd == CMD_READ_STATUS ? "read" : "flag");
return ret;
}
@ -181,14 +98,14 @@ int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
if (ret)
return -1;
if ((status & poll_bit) == 0)
if ((status & poll_bit) == check_status)
break;
} while (get_timer(timebase) < timeout);
spi_xfer(spi, 0, NULL, NULL, SPI_XFER_END);
if ((status & poll_bit) == 0)
if ((status & poll_bit) == check_status)
return 0;
/* Timed out */
@ -196,17 +113,52 @@ int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
return -1;
}
int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd,
size_t cmd_len, const void *buf, size_t buf_len)
{
return spi_flash_cmd_poll_bit(flash, timeout,
CMD_READ_STATUS, STATUS_WIP);
struct spi_slave *spi = flash->spi;
unsigned long timeout = SPI_FLASH_PROG_TIMEOUT;
int ret;
if (buf == NULL)
timeout = SPI_FLASH_PAGE_ERASE_TIMEOUT;
ret = spi_claim_bus(flash->spi);
if (ret) {
debug("SF: unable to claim SPI bus\n");
return ret;
}
ret = spi_flash_cmd_write_enable(flash);
if (ret < 0) {
debug("SF: enabling write failed\n");
return ret;
}
ret = spi_flash_cmd_write(spi, cmd, cmd_len, buf, buf_len);
if (ret < 0) {
debug("SF: write cmd failed\n");
return ret;
}
ret = spi_flash_cmd_wait_ready(flash, timeout);
if (ret < 0) {
debug("SF: write %s timed out\n",
timeout == SPI_FLASH_PROG_TIMEOUT ?
"program" : "page erase");
return ret;
}
spi_release_bus(spi);
return ret;
}
int spi_flash_cmd_erase(struct spi_flash *flash, u32 offset, size_t len)
{
u32 end, erase_size;
int ret;
u32 erase_size;
u8 cmd[4];
int ret = -1;
erase_size = flash->sector_size;
if (offset % erase_size || len % erase_size) {
@ -214,40 +166,157 @@ int spi_flash_cmd_erase(struct spi_flash *flash, u32 offset, size_t len)
return -1;
}
ret = spi_claim_bus(flash->spi);
if (ret) {
debug("SF: Unable to claim SPI bus\n");
return ret;
}
if (erase_size == 4096)
cmd[0] = CMD_ERASE_4K;
else
cmd[0] = CMD_ERASE_64K;
end = offset + len;
while (offset < end) {
while (len) {
#ifdef CONFIG_SPI_FLASH_BAR
u8 bank_sel;
bank_sel = offset / SPI_FLASH_16MB_BOUN;
ret = spi_flash_cmd_bankaddr_write(flash, bank_sel);
if (ret) {
debug("SF: fail to set bank%d\n", bank_sel);
return ret;
}
#endif
spi_flash_addr(offset, cmd);
offset += erase_size;
debug("SF: erase %2x %2x %2x %2x (%x)\n", cmd[0], cmd[1],
cmd[2], cmd[3], offset);
ret = spi_flash_cmd_write_enable(flash);
if (ret)
goto out;
ret = spi_flash_cmd_write(flash->spi, cmd, sizeof(cmd), NULL, 0);
if (ret)
goto out;
ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
if (ret)
goto out;
ret = spi_flash_write_common(flash, cmd, sizeof(cmd), NULL, 0);
if (ret < 0) {
debug("SF: erase failed\n");
break;
}
offset += erase_size;
len -= erase_size;
}
return ret;
}
int spi_flash_cmd_write_multi(struct spi_flash *flash, u32 offset,
size_t len, const void *buf)
{
unsigned long byte_addr, page_size;
size_t chunk_len, actual;
u8 cmd[4];
int ret = -1;
page_size = flash->page_size;
cmd[0] = CMD_PAGE_PROGRAM;
for (actual = 0; actual < len; actual += chunk_len) {
#ifdef CONFIG_SPI_FLASH_BAR
u8 bank_sel;
bank_sel = offset / SPI_FLASH_16MB_BOUN;
ret = spi_flash_cmd_bankaddr_write(flash, bank_sel);
if (ret) {
debug("SF: fail to set bank%d\n", bank_sel);
return ret;
}
#endif
byte_addr = offset % page_size;
chunk_len = min(len - actual, page_size - byte_addr);
if (flash->spi->max_write_size)
chunk_len = min(chunk_len, flash->spi->max_write_size);
spi_flash_addr(offset, cmd);
debug("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %zu\n",
buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len);
ret = spi_flash_write_common(flash, cmd, sizeof(cmd),
buf + actual, chunk_len);
if (ret < 0) {
debug("SF: write failed\n");
break;
}
offset += chunk_len;
}
return ret;
}
int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
size_t cmd_len, void *data, size_t data_len)
{
struct spi_slave *spi = flash->spi;
int ret;
ret = spi_claim_bus(flash->spi);
if (ret) {
debug("SF: unable to claim SPI bus\n");
return ret;
}
ret = spi_flash_cmd_read(spi, cmd, cmd_len, data, data_len);
if (ret < 0) {
debug("SF: read cmd failed\n");
return ret;
}
spi_release_bus(spi);
return ret;
}
int spi_flash_cmd_read_fast(struct spi_flash *flash, u32 offset,
size_t len, void *data)
{
u8 cmd[5], bank_sel = 0;
u32 remain_len, read_len;
int ret = -1;
/* Handle memory-mapped SPI */
if (flash->memory_map) {
memcpy(data, flash->memory_map + offset, len);
return 0;
}
cmd[0] = CMD_READ_ARRAY_FAST;
cmd[4] = 0x00;
while (len) {
#ifdef CONFIG_SPI_FLASH_BAR
bank_sel = offset / SPI_FLASH_16MB_BOUN;
ret = spi_flash_cmd_bankaddr_write(flash, bank_sel);
if (ret) {
debug("SF: fail to set bank%d\n", bank_sel);
return ret;
}
#endif
remain_len = (SPI_FLASH_16MB_BOUN * (bank_sel + 1) - offset);
if (len < remain_len)
read_len = len;
else
read_len = remain_len;
spi_flash_addr(offset, cmd);
ret = spi_flash_read_common(flash, cmd, sizeof(cmd),
data, read_len);
if (ret < 0) {
debug("SF: read failed\n");
break;
}
offset += read_len;
len -= read_len;
data += read_len;
}
out:
spi_release_bus(flash->spi);
return ret;
}
@ -256,28 +325,75 @@ int spi_flash_cmd_write_status(struct spi_flash *flash, u8 sr)
u8 cmd;
int ret;
ret = spi_flash_cmd_write_enable(flash);
if (ret < 0) {
debug("SF: enabling write failed\n");
return ret;
}
cmd = CMD_WRITE_STATUS;
ret = spi_flash_cmd_write(flash->spi, &cmd, 1, &sr, 1);
if (ret) {
debug("SF: fail to write status register\n");
return ret;
}
ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
ret = spi_flash_write_common(flash, &cmd, 1, &sr, 1);
if (ret < 0) {
debug("SF: write status register timed out\n");
debug("SF: fail to write status register\n");
return ret;
}
return 0;
}
#ifdef CONFIG_SPI_FLASH_BAR
int spi_flash_cmd_bankaddr_write(struct spi_flash *flash, u8 bank_sel)
{
u8 cmd;
int ret;
if (flash->bank_curr == bank_sel) {
debug("SF: not require to enable bank%d\n", bank_sel);
return 0;
}
cmd = flash->bank_write_cmd;
ret = spi_flash_write_common(flash, &cmd, 1, &bank_sel, 1);
if (ret < 0) {
debug("SF: fail to write bank register\n");
return ret;
}
flash->bank_curr = bank_sel;
return 0;
}
int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0)
{
u8 cmd;
u8 curr_bank = 0;
/* discover bank cmds */
switch (idcode0) {
case SPI_FLASH_SPANSION_IDCODE0:
flash->bank_read_cmd = CMD_BANKADDR_BRRD;
flash->bank_write_cmd = CMD_BANKADDR_BRWR;
break;
case SPI_FLASH_STMICRO_IDCODE0:
case SPI_FLASH_WINBOND_IDCODE0:
flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
break;
default:
printf("SF: Unsupported bank commands %02x\n", idcode0);
return -1;
}
/* read the bank reg - on which bank the flash is in currently */
cmd = flash->bank_read_cmd;
if (flash->size > SPI_FLASH_16MB_BOUN) {
if (spi_flash_read_common(flash, &cmd, 1, &curr_bank, 1)) {
debug("SF: fail to read bank addr register\n");
return -1;
}
flash->bank_curr = curr_bank;
} else {
flash->bank_curr = curr_bank;
}
return 0;
}
#endif
#ifdef CONFIG_OF_CONTROL
int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
{
@ -425,6 +541,13 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
goto err_manufacturer_probe;
}
#ifdef CONFIG_SPI_FLASH_BAR
/* Configure the BAR - disover bank cmds and read current bank */
ret = spi_flash_bank_config(flash, *idp);
if (ret < 0)
goto err_manufacturer_probe;
#endif
#ifdef CONFIG_OF_CONTROL
if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
debug("SF: FDT decode error\n");
@ -437,6 +560,12 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
if (flash->memory_map)
printf(", mapped at %p", flash->memory_map);
puts("\n");
#ifndef CONFIG_SPI_FLASH_BAR
if (flash->size > SPI_FLASH_16MB_BOUN) {
puts("SF: Warning - Only lower 16MiB accessible,");
puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
}
#endif
spi_release_bus(spi);
@ -467,6 +596,7 @@ void *spi_flash_do_alloc(int offset, int size, struct spi_slave *spi,
/* Set up some basic fields - caller will sort out sizes */
flash->spi = spi;
flash->name = name;
flash->poll_cmd = CMD_READ_STATUS;
flash->read = spi_flash_cmd_read_fast;
flash->write = spi_flash_cmd_write_multi;

39
drivers/mtd/spi/spi_flash_internal.h
View File

@ -22,14 +22,31 @@
#define CMD_PAGE_PROGRAM 0x02
#define CMD_WRITE_DISABLE 0x04
#define CMD_READ_STATUS 0x05
#define CMD_FLAG_STATUS 0x70
#define CMD_WRITE_ENABLE 0x06
#define CMD_ERASE_4K 0x20
#define CMD_ERASE_32K 0x52
#define CMD_ERASE_64K 0xd8
#define CMD_ERASE_CHIP 0xc7
#define SPI_FLASH_16MB_BOUN 0x1000000
/* Manufacture ID's */
#define SPI_FLASH_SPANSION_IDCODE0 0x01
#define SPI_FLASH_STMICRO_IDCODE0 0x20
#define SPI_FLASH_WINBOND_IDCODE0 0xef
#ifdef CONFIG_SPI_FLASH_BAR
/* Bank addr access commands */
# define CMD_BANKADDR_BRWR 0x17
# define CMD_BANKADDR_BRRD 0x16
# define CMD_EXTNADDR_WREAR 0xC5
# define CMD_EXTNADDR_RDEAR 0xC8
#endif
/* Common status */
#define STATUS_WIP 0x01
#define STATUS_PEC 0x80
/* Send a single-byte command to the device and read the response */
int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len);
@ -77,16 +94,30 @@ static inline int spi_flash_cmd_write_disable(struct spi_flash *flash)
/* Program the status register. */
int spi_flash_cmd_write_status(struct spi_flash *flash, u8 sr);
#ifdef CONFIG_SPI_FLASH_BAR
/* Program the bank address register */
int spi_flash_cmd_bankaddr_write(struct spi_flash *flash, u8 bank_sel);
/* Configure the BAR - discover the bank cmds */
int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0);
#endif
/*
* Same as spi_flash_cmd_read() except it also claims/releases the SPI
* bus. Used as common part of the ->read() operation.
*/
int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
size_t cmd_len, void *data, size_t data_len);
/* Send a command to the device and wait for some bit to clear itself. */
int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
u8 cmd, u8 poll_bit);
/*
* Used for spi_flash write operation
* - SPI claim
* - spi_flash_cmd_write_enable
* - spi_flash_cmd_write
* - spi_flash_cmd_wait_ready
* - SPI release
*/
int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd,
size_t cmd_len, const void *buf, size_t buf_len);
/*
* Send the read status command to the device and wait for the wip

28
drivers/mtd/spi/stmicro.c
View File

@ -140,6 +140,30 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
.nr_sectors = 512,
.name = "N25Q256A",
},
{
.id = 0xba20,
.pages_per_sector = 256,
.nr_sectors = 1024,
.name = "N25Q512",
},
{
.id = 0xbb20,
.pages_per_sector = 256,
.nr_sectors = 1024,
.name = "N25Q512A",
},
{
.id = 0xba21,
.pages_per_sector = 256,
.nr_sectors = 2048,
.name = "N25Q1024",
},
{
.id = 0xbb21,
.pages_per_sector = 256,
.nr_sectors = 2048,
.name = "N25Q1024A",
},
};
struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
@ -186,5 +210,9 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
flash->sector_size = 256 * params->pages_per_sector;
flash->size = flash->sector_size * params->nr_sectors;
/* for >= 512MiB flashes, use flag status instead of read_status */
if (flash->size >= 0x4000000)
flash->poll_cmd = CMD_FLAG_STATUS;
return flash;
}

24
drivers/mtd/spi/winbond.c
View File

@ -55,27 +55,27 @@ static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
{
.id = 0x4014,
.nr_blocks = 16,
.name = "W25Q80BL",
.name = "W25Q80BL/W25Q80BV",
},
{
.id = 0x4015,
.nr_blocks = 32,
.name = "W25Q16",
.name = "W25Q16CL/W25Q16DV",
},
{
.id = 0x4016,
.nr_blocks = 64,
.name = "W25Q32",
.name = "W25Q32BV/W25Q32FV_SPI",
},
{
.id = 0x4017,
.nr_blocks = 128,
.name = "W25Q64",
.name = "W25Q64CV/W25Q64FV_SPI",
},
{
.id = 0x4018,
.nr_blocks = 256,
.name = "W25Q128",
.name = "W25Q128BV/W25Q128FV_SPI",
},
{
.id = 0x4019,
@ -87,15 +87,25 @@ static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
.nr_blocks = 16,
.name = "W25Q80BW",
},
{
.id = 0x6015,
.nr_blocks = 32,
.name = "W25Q16DW",
},
{
.id = 0x6016,
.nr_blocks = 64,
.name = "W25Q32DW",
.name = "W25Q32DW/W25Q32FV_QPI",
},
{
.id = 0x6017,
.nr_blocks = 128,
.name = "W25Q64DW",
.name = "W25Q64DW/W25Q64FV_QPI",
},
{
.id = 0x6018,
.nr_blocks = 256,
.name = "W25Q128FW/W25Q128FV_QPI",
},
};

2
drivers/spi/cf_qspi.c
View File

@ -171,7 +171,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
volatile qspi_t *qspi = dev->regs;
u8 *txbuf = (u8 *)dout;
u8 *rxbuf = (u8 *)din;
u32 count = ((bitlen / 8) + (bitlen % 8 ? 1 : 0));
u32 count = DIV_ROUND_UP(bitlen, 8);
u32 n, i = 0;
/* Sanitize arguments */

6
drivers/spi/mxc_spi.c
View File

@ -224,7 +224,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
const u8 *dout, u8 *din, unsigned long flags)
{
struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
int nbytes = (bitlen + 7) / 8;
int nbytes = DIV_ROUND_UP(bitlen, 8);
u32 data, cnt, i;
struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
@ -294,7 +294,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
/* Transfer completed, clear any pending request */
reg_write(&regs->stat, MXC_CSPICTRL_TC | MXC_CSPICTRL_RXOVF);
nbytes = (bitlen + 7) / 8;
nbytes = DIV_ROUND_UP(bitlen, 8);
cnt = nbytes % 32;
@ -330,7 +330,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
void *din, unsigned long flags)
{
int n_bytes = (bitlen + 7) / 8;
int n_bytes = DIV_ROUND_UP(bitlen, 8);
int n_bits;
int ret;
u32 blk_size;

10
include/spi_flash.h
View File

@ -38,6 +38,16 @@ struct spi_flash {
u32 page_size;
/* Erase (sector) size */
u32 sector_size;
#ifdef CONFIG_SPI_FLASH_BAR
/* Bank read cmd */
u8 bank_read_cmd;
/* Bank write cmd */
u8 bank_write_cmd;
/* Current flash bank */
u8 bank_curr;
#endif
/* Poll cmd - for flash erase/program */
u8 poll_cmd;
void *memory_map; /* Address of read-only SPI flash access */
int (*read)(struct spi_flash *flash, u32 offset,