spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node

[karo-tx-uboot.git] / drivers / mtd / spi / sf_probe.c

diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
index 5eb8ffe843e07eb1dd128a37f23fc93312e37dd0..ca127155b50182dda8ccc0b5c0106702a3f30ea0 100644 (file)
--- a/drivers/mtd/spi/sf_probe.c
+++ b/drivers/mtd/spi/sf_probe.c
@@ -285,16 +285,13 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
 }
 #endif /* CONFIG_OF_CONTROL */
 
-struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
-               unsigned int max_hz, unsigned int spi_mode)
+static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi)
 {
-       struct spi_slave *spi;
        struct spi_flash *flash = NULL;
        u8 idcode[5];
        int ret;
 
        /* Setup spi_slave */
-       spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
        if (!spi) {
                printf("SF: Failed to set up slave\n");
                return NULL;
@@ -358,6 +355,26 @@ err_claim_bus:
        return NULL;
 }
 
+struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
+               unsigned int max_hz, unsigned int spi_mode)
+{
+       struct spi_slave *spi;
+
+       spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
+       return spi_flash_probe_slave(spi);
+}
+
+#ifdef CONFIG_OF_SPI_FLASH
+struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node,
+                                     int spi_node)
+{
+       struct spi_slave *spi;
+
+       spi = spi_setup_slave_fdt(blob, slave_node, spi_node);
+       return spi_flash_probe_slave(spi);
+}
+#endif
+
 void spi_flash_free(struct spi_flash *flash)
 {
        spi_free_slave(flash->spi);