#include <common.h>
#include <command.h>
+#include <errno.h>
#include <spi.h>
/*-----------------------------------------------------------------------
static uchar dout[MAX_SPI_BYTES];
static uchar din[MAX_SPI_BYTES];
+static int do_spi_xfer(int bus, int cs)
+{
+ struct spi_slave *slave;
+ int rcode = 0;
+
+ slave = spi_setup_slave(bus, cs, 1000000, mode);
+ if (!slave) {
+ printf("Invalid device %d:%d\n", bus, cs);
+ return -EINVAL;
+ }
+
+ spi_claim_bus(slave);
+ if (spi_xfer(slave, bitlen, dout, din,
+ SPI_XFER_BEGIN | SPI_XFER_END) != 0) {
+ printf("Error during SPI transaction\n");
+ rcode = -EIO;
+ } else {
+ int j;
+
+ for (j = 0; j < ((bitlen + 7) / 8); j++)
+ printf("%02X", din[j]);
+ printf("\n");
+ }
+ spi_release_bus(slave);
+ spi_free_slave(slave);
+
+ return rcode;
+}
+
/*
* SPI read/write
*
int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- struct spi_slave *slave;
char *cp = 0;
uchar tmp;
int j;
- int rcode = 0;
/*
* We use the last specified parameters, unless new ones are
return 1;
}
- slave = spi_setup_slave(bus, cs, 1000000, mode);
- if (!slave) {
- printf("Invalid device %d:%d\n", bus, cs);
+ if (do_spi_xfer(bus, cs))
return 1;
- }
-
- spi_claim_bus(slave);
- if(spi_xfer(slave, bitlen, dout, din,
- SPI_XFER_BEGIN | SPI_XFER_END) != 0) {
- printf("Error during SPI transaction\n");
- rcode = 1;
- } else {
- for(j = 0; j < ((bitlen + 7) / 8); j++) {
- printf("%02X", din[j]);
- }
- printf("\n");
- }
- spi_release_bus(slave);
- spi_free_slave(slave);
- return rcode;
+ return 0;
}
/***************************************************/
/* Assume all SPI flashes have 3 byte addresses since they do atm */
#define SF_ADDR_LEN 3
-struct sandbox_spi_flash_erase_commands {
- u8 cmd;
- u32 size;
-};
-#define IDCODE_LEN 5
-#define MAX_ERASE_CMDS 3
-struct sandbox_spi_flash_data {
- const char *name;
- u8 idcode[IDCODE_LEN];
- u32 size;
- const struct sandbox_spi_flash_erase_commands
- erase_cmds[MAX_ERASE_CMDS];
-};
-
-/* Structure describing all the flashes we know how to emulate */
-static const struct sandbox_spi_flash_data sandbox_sf_flashes[] = {
- {
- "M25P16", { 0x20, 0x20, 0x15 }, (2 << 20),
- { /* erase commands */
- { 0xd8, (64 << 10), }, /* sector */
- { 0xc7, (2 << 20), }, /* bulk */
- },
- },
- {
- "W25Q32", { 0xef, 0x40, 0x16 }, (4 << 20),
- { /* erase commands */
- { 0x20, (4 << 10), }, /* 4KB */
- { 0xd8, (64 << 10), }, /* sector */
- { 0xc7, (4 << 20), }, /* bulk */
- },
- },
- {
- "W25Q128", { 0xef, 0x40, 0x18 }, (16 << 20),
- { /* erase commands */
- { 0x20, (4 << 10), }, /* 4KB */
- { 0xd8, (64 << 10), }, /* sector */
- { 0xc7, (16 << 20), }, /* bulk */
- },
- },
-};
+#define IDCODE_LEN 3
/* Used to quickly bulk erase backing store */
static u8 sandbox_sf_0xff[0x1000];
*/
enum sandbox_sf_state state;
uint cmd;
- const void *cmd_data;
+ /* Erase size of current erase command */
+ uint erase_size;
/* Current position in the flash; used when reading/writing/etc... */
uint off;
/* How many address bytes we've consumed */
/* The current flash status (see STAT_XXX defines above) */
u16 status;
/* Data describing the flash we're emulating */
- const struct sandbox_spi_flash_data *data;
+ const struct spi_flash_params *data;
/* The file on disk to serv up data from */
int fd;
};
/* spec = idcode:file */
struct sandbox_spi_flash *sbsf;
const char *file;
- size_t i, len, idname_len;
- const struct sandbox_spi_flash_data *data;
+ size_t len, idname_len;
+ const struct spi_flash_params *data;
file = strchr(spec, ':');
if (!file) {
idname_len = file - spec;
++file;
- for (i = 0; i < ARRAY_SIZE(sandbox_sf_flashes); ++i) {
- data = &sandbox_sf_flashes[i];
+ for (data = spi_flash_params_table; data->name; data++) {
len = strlen(data->name);
if (idname_len != len)
continue;
if (!memcmp(spec, data->name, len))
break;
}
- if (i == ARRAY_SIZE(sandbox_sf_flashes)) {
+ if (!data->name) {
printf("sandbox_sf: unknown flash '%*s'\n", (int)idname_len,
spec);
goto error;
sbsf->pad_addr_bytes = 1;
case CMD_READ_ARRAY_SLOW:
case CMD_PAGE_PROGRAM:
- state_addr:
sbsf->state = SF_ADDR;
break;
case CMD_WRITE_DISABLE:
sbsf->status |= STAT_WEL;
break;
default: {
- size_t i;
-
- /* handle erase commands first */
- for (i = 0; i < MAX_ERASE_CMDS; ++i) {
- const struct sandbox_spi_flash_erase_commands *
- erase_cmd = &sbsf->data->erase_cmds[i];
-
- if (erase_cmd->cmd == 0x00)
- continue;
- if (sbsf->cmd != erase_cmd->cmd)
- continue;
-
- sbsf->cmd_data = erase_cmd;
- goto state_addr;
+ int flags = sbsf->data->flags;
+
+ /* we only support erase here */
+ if (sbsf->cmd == CMD_ERASE_CHIP) {
+ sbsf->erase_size = sbsf->data->sector_size *
+ sbsf->data->nr_sectors;
+ } else if (sbsf->cmd == CMD_ERASE_4K && (flags & SECT_4K)) {
+ sbsf->erase_size = 4 << 10;
+ } else if (sbsf->cmd == CMD_ERASE_32K && (flags & SECT_32K)) {
+ sbsf->erase_size = 32 << 10;
+ } else if (sbsf->cmd == CMD_ERASE_64K &&
+ !(flags & (SECT_4K | SECT_32K))) {
+ sbsf->erase_size = 64 << 10;
+ } else {
+ debug(" cmd unknown: %#x\n", sbsf->cmd);
+ return 1;
}
-
- debug(" cmd unknown: %#x\n", sbsf->cmd);
- return 1;
+ sbsf->state = SF_ADDR;
+ break;
}
}
u8 id;
debug(" id: off:%u tx:", sbsf->off);
- if (sbsf->off < IDCODE_LEN)
- id = sbsf->data->idcode[sbsf->off];
- else
+ if (sbsf->off < IDCODE_LEN) {
+ /* Extract correct byte from ID 0x00aabbcc */
+ id = sbsf->data->jedec >>
+ (8 * (IDCODE_LEN - 1 - sbsf->off));
+ } else {
id = 0;
- debug("%02x\n", id);
+ }
+ debug("%d %02x\n", sbsf->off, id);
tx[pos++] = id;
++sbsf->off;
break;
break;
case SF_ERASE:
case_sf_erase: {
- const struct sandbox_spi_flash_erase_commands *
- erase_cmd = sbsf->cmd_data;
-
if (!(sbsf->status & STAT_WEL)) {
puts("sandbox_sf: write enable not set before erase\n");
goto done;
}
/* verify address is aligned */
- if (sbsf->off & (erase_cmd->size - 1)) {
+ if (sbsf->off & (sbsf->erase_size - 1)) {
debug(" sector erase: cmd:%#x needs align:%#x, but we got %#x\n",
- erase_cmd->cmd, erase_cmd->size,
+ sbsf->cmd, sbsf->erase_size,
sbsf->off);
sbsf->status &= ~STAT_WEL;
goto done;
}
- debug(" sector erase addr: %u\n", sbsf->off);
+ debug(" sector erase addr: %u, size: %u\n", sbsf->off,
+ sbsf->erase_size);
cnt = bytes - pos;
sandbox_spi_tristate(&tx[pos], cnt);
* TODO(vapier@gentoo.org): latch WIP in status, and
* delay before clearing it ?
*/
- ret = sandbox_erase_part(sbsf, erase_cmd->size);
+ ret = sandbox_erase_part(sbsf, sbsf->erase_size);
sbsf->status &= ~STAT_WEL;
if (ret) {
debug("sandbox_sf: Erase failed\n");
#define SPI_XFER_MMAP 0x08 /* Memory Mapped start */
#define SPI_XFER_MMAP_END 0x10 /* Memory Mapped End */
#define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END)
-#define SPI_XFER_U_PAGE (1 << 5)
+#define SPI_XFER_U_PAGE (1 << 5)
/* SPI TX operation modes */
-#define SPI_OPM_TX_QPP 1 << 0
+#define SPI_OPM_TX_QPP (1 << 0)
/* SPI RX operation modes */
-#define SPI_OPM_RX_AS 1 << 0
-#define SPI_OPM_RX_DOUT 1 << 1
-#define SPI_OPM_RX_DIO 1 << 2
-#define SPI_OPM_RX_QOF 1 << 3
-#define SPI_OPM_RX_QIOF 1 << 4
-#define SPI_OPM_RX_EXTN SPI_OPM_RX_AS | SPI_OPM_RX_DOUT | \
+#define SPI_OPM_RX_AS (1 << 0)
+#define SPI_OPM_RX_DOUT (1 << 1)
+#define SPI_OPM_RX_DIO (1 << 2)
+#define SPI_OPM_RX_QOF (1 << 3)
+#define SPI_OPM_RX_QIOF (1 << 4)
+#define SPI_OPM_RX_EXTN (SPI_OPM_RX_AS | SPI_OPM_RX_DOUT | \
SPI_OPM_RX_DIO | SPI_OPM_RX_QOF | \
- SPI_OPM_RX_QIOF
+ SPI_OPM_RX_QIOF)
-/* SPI bus connection options */
-#define SPI_CONN_DUAL_SHARED 1 << 0
-#define SPI_CONN_DUAL_SEPARATED 1 << 1
+/* SPI bus connection options - see enum spi_dual_flash */
+#define SPI_CONN_DUAL_SHARED (1 << 0)
+#define SPI_CONN_DUAL_SEPARATED (1 << 1)
/* Header byte that marks the start of the message */
#define SPI_PREAMBLE_END_BYTE 0xec
projects / karo-tx-uboot.git / commitdiff