*/
#include <common.h>
+#include <fdtdec.h>
#include <malloc.h>
#include <spi.h>
#include <spi_flash.h>
#include "spi_flash_internal.h"
+DECLARE_GLOBAL_DATA_PTR;
+
static void spi_flash_addr(u32 addr, u8 *cmd)
{
/* cmd[0] is actual command */
}
}
- debug("SF: program %s %zu bytes @ %#x\n",
- ret ? "failure" : "success", len, offset);
-
spi_release_bus(flash->spi);
return ret;
}
{
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;
int spi_flash_cmd_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- u32 start, end, erase_size;
+ u32 end, erase_size;
int ret;
u8 cmd[4];
cmd[0] = CMD_ERASE_4K;
else
cmd[0] = CMD_ERASE_64K;
- start = offset;
- end = start + len;
+ end = offset + len;
while (offset < end) {
spi_flash_addr(offset, cmd);
goto out;
}
- debug("SF: Successfully erased %zu bytes @ %#x\n", len, start);
-
out:
spi_release_bus(flash->spi);
return ret;
return 0;
}
+#ifdef CONFIG_OF_CONTROL
+int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
+{
+ fdt_addr_t addr;
+ fdt_size_t size;
+ int node;
+
+ /* If there is no node, do nothing */
+ node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH);
+ if (node < 0)
+ return 0;
+
+ addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
+ if (addr == FDT_ADDR_T_NONE) {
+ debug("%s: Cannot decode address\n", __func__);
+ return 0;
+ }
+
+ if (flash->size != size) {
+ debug("%s: Memory map must cover entire device\n", __func__);
+ return -1;
+ }
+ flash->memory_map = (void *)addr;
+
+ return 0;
+}
+#endif /* CONFIG_OF_CONTROL */
+
/*
* The following table holds all device probe functions
*
#ifdef CONFIG_SPI_FLASH_EON
{ 0, 0x1c, spi_flash_probe_eon, },
#endif
+#ifdef CONFIG_SPI_FLASH_GIGADEVICE
+ { 0, 0xc8, spi_flash_probe_gigadevice, },
+#endif
#ifdef CONFIG_SPI_FLASH_MACRONIX
{ 0, 0xc2, spi_flash_probe_macronix, },
#endif
goto err_manufacturer_probe;
}
+#ifdef CONFIG_OF_CONTROL
+ if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
+ debug("SF: FDT decode error\n");
+ goto err_manufacturer_probe;
+ }
+#endif
printf("SF: Detected %s with page size ", flash->name);
print_size(flash->sector_size, ", total ");
- print_size(flash->size, "\n");
+ print_size(flash->size, "");
+ if (flash->memory_map)
+ printf(", mapped at %p", flash->memory_map);
+ puts("\n");
spi_release_bus(spi);