[U-Boot] [PATCH v6 10/76] mtd: spi-nor: Add spi_flash_probe for mtd-dm-spi-nor

Jagan Teki
2016-02-14T20:48:09Z

While probing spi-nor in SPL spi_flash_probe is needed,
so add the flash probe code in spi-nor-probe.c

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
---
drivers/mtd/spi-nor/spi-nor-probe.c | 15 +++++++++++++++
include/spi_flash.h | 6 ++++++
2 files changed, 21 insertions(+)

diff --git a/drivers/mtd/spi-nor/spi-nor-probe.c b/drivers/mtd/spi-nor/spi-nor-probe.c
index c808a7d..9bc61ea 100644
--- a/drivers/mtd/spi-nor/spi-nor-probe.c
+++ b/drivers/mtd/spi-nor/spi-nor-probe.c
@@ -9,6 +9,21 @@
#include <spi.h>
#include <spi_flash.h>

+/*
+ * TODO(sjg at chromium.org): This is an old-style function. We should remove
+ * it when all SPI flash drivers use dm
+ */
+spi_flash_t *spi_flash_probe(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int spi_mode)
+{
+ struct udevice *dev;
+
+ if (spi_flash_probe_bus_cs(bus, cs, max_hz, spi_mode, &dev))
+ return NULL;
+
+ return dev_get_uclass_priv(dev);
+}
+
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp)
diff --git a/include/spi_flash.h b/include/spi_flash.h
index db07b99..45fda7a 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -110,10 +110,16 @@ struct spi_flash {

#if defined(CONFIG_MTD_SPI_NOR) && defined(CONFIG_MTD_DM_SPI_NOR)

+typedef struct mtd_info spi_flash_t;
+
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp);

+/* Compatibility function - this is the old U-Boot API */
+spi_flash_t *spi_flash_probe(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int spi_mode);
+
#endif

struct dm_spi_flash_ops {
--
1.9.1