ARM: mx5/mx51_3ds: add eCSPI2 support on the imx51_3ds board

Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index e57caefb1f28..2735314a78e0 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -18,6 +18,7 @@ config MACH_MX51_BABBAGE
 
 config MACH_MX51_3DS
         bool "Support MX51PDK (3DS)"
+        select IMX_HAVE_PLATFORM_SPI_IMX
         select MXC_DEBUG_BOARD
         help
           Include support for MX51PDK (3DS) platform. This includes specific
diff --git a/arch/arm/mach-mx5/board-mx51_3ds.c b/arch/arm/mach-mx5/board-mx51_3ds.c
index f95c2fd94667..c9c41282c996 100644
--- a/arch/arm/mach-mx5/board-mx51_3ds.c
+++ b/arch/arm/mach-mx5/board-mx51_3ds.c
@@ -24,9 +24,11 @@
 #include <mach/imx-uart.h>
 #include <mach/3ds_debugboard.h>
 
+#include "devices-imx51.h"
 #include "devices.h"
 
 #define EXPIO_PARENT_INT        (MXC_INTERNAL_IRQS + GPIO_PORTA + 6)
+#define MX51_3DS_ECSPI2_CS      (GPIO_PORTC + 28)
 
 static struct pad_desc mx51_3ds_pads[] = {
         /* UART1 */
@@ -61,6 +63,12 @@ static struct pad_desc mx51_3ds_pads[] = {
         MX51_PAD_KEY_COL3__KEY_COL3,
         MX51_PAD_KEY_COL4__KEY_COL4,
         MX51_PAD_KEY_COL5__KEY_COL5,
+
+        /* eCSPI2 */
+        MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
+        MX51_PAD_NANDF_RB3__ECSPI2_MISO,
+        MX51_PAD_NANDF_D15__ECSPI2_MOSI,
+        MX51_PAD_NANDF_D12__GPIO_3_28,
 };
 
 /* Serial ports */
@@ -127,6 +135,16 @@ static inline void mxc_init_keypad(void)
 }
 #endif
 
+static int mx51_3ds_spi2_cs[] = {
+        MXC_SPI_CS(0),
+        MX51_3DS_ECSPI2_CS,
+};
+
+static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
+        .chipselect     = mx51_3ds_spi2_cs,
+        .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
+};
+
 /*
  * Board specific initialization.
  */
@@ -136,6 +154,8 @@ static void __init mxc_board_init(void)
                                         ARRAY_SIZE(mx51_3ds_pads));
         mxc_init_imx_uart();
 
+        imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
+
         if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
                 printk(KERN_WARNING "Init of the debugboard failed, all "
                                     "devices on the board are unusable.\n");