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[U-Boot,v2,02/12] arm, at91: add spi dataflash support for the taurus board

Message ID 1414656906-16632-3-git-send-email-hs@denx.de
State Superseded
Headers show

Commit Message

Heiko Schocher Oct. 30, 2014, 8:14 a.m. UTC 
Signed-off-by: Heiko Schocher <hs@denx.de>

---

Changes in v2:
  - add comment from Jagan Teki:
    - remove spi_init_f() from board file
    - remove CONFIG_SYS_SPI_WRITE_TOUT from board config file
      instead define a default in the spi driver -> new patch for v2

 board/siemens/taurus/taurus.c | 18 ++++++++++++++++++
 include/configs/taurus.h      | 10 ++++++++++
 2 files changed, 28 insertions(+)
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Patch

diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c
index 673b302..76609c7 100644
--- a/board/siemens/taurus/taurus.c
+++ b/board/siemens/taurus/taurus.c
@@ -22,6 +22,8 @@ 
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam9_sdramc.h>
 #include <atmel_mci.h>
+#include <asm/arch/at91_spi.h>
+#include <spi.h>
 
 #include <net.h>
 #include <netdev.h>
@@ -127,6 +129,21 @@  int board_early_init_f(void)
 	return 0;
 }
 
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs == 0;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	at91_set_gpio_value(TAURUS_SPI_CS_PIN, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	at91_set_gpio_value(TAURUS_SPI_CS_PIN, 1);
+}
+
 int board_init(void)
 {
 	/* adress of boot parameters */
@@ -139,6 +156,7 @@  int board_init(void)
 #ifdef CONFIG_MACB
 	taurus_macb_hw_init();
 #endif
+	at91_spi0_hw_init(TAURUS_SPI_MASK);
 
 	return 0;
 }
diff --git a/include/configs/taurus.h b/include/configs/taurus.h
index aadf4cd..ba9496f 100644
--- a/include/configs/taurus.h
+++ b/include/configs/taurus.h
@@ -127,6 +127,16 @@ 
 #define CONFIG_USB_STORAGE
 #endif
 
+/* SPI EEPROM */
+#define CONFIG_SPI
+#define CONFIG_CMD_SPI
+#define CONFIG_CMD_SF
+#define CONFIG_SPI_FLASH
+#define CONFIG_ATMEL_SPI
+#define CONFIG_SPI_FLASH_STMICRO
+#define TAURUS_SPI_MASK (1 << 4)
+#define TAURUS_SPI_CS_PIN	AT91_PIN_PA3
+
 /* load address */
 #define CONFIG_SYS_LOAD_ADDR			0x22000000