[U-Boot-Users] [PATCH 06/10] [ARM] TQMA31: add support for SPI and SPI device MC13783-RTC

[Jens Gehrlein]

Signed-off-by: Jens Gehrlein <sew_s at tqs.de>
---

 board/tqc/tqma31/tqma31.c             |   13 +++++++++++++
 include/asm-arm/arch-mx31/mx31-regs.h |   12 ++++++++++++
 include/configs/TQMA31.h              |   20 ++++++++++++++++++++
 3 files changed, 45 insertions(+), 0 deletions(-)


diff --git a/board/tqc/tqma31/tqma31.c b/board/tqc/tqma31/tqma31.c
index 0c67af3..c704c41 100644
--- a/board/tqc/tqma31/tqma31.c
+++ b/board/tqc/tqma31/tqma31.c
@@ -55,6 +55,19 @@ static void setup_iomux (void)
 	mx31_gpio_mux (MUX_I2C_DAT__I2C1_SDA);
 	mx31_pad_ctl (PAD_CTL_I2C_CLK, PAD_CTL_IPP_ODE_OD);
 	mx31_pad_ctl (PAD_CTL_I2C_DAT, PAD_CTL_IPP_ODE_OD);
+
+	/* Pins for SPI2 */
+	mx31_gpio_mux (MUX_CSPI2_MOSI__CSPI2_MOSI);
+	mx31_gpio_mux (MUX_CSPI2_MISO__CSPI2_MISO);
+	mx31_gpio_mux (MUX_CSPI2_SS0__CSPI2_SS0_B);
+	mx31_gpio_mux (MUX_CSPI2_SCLK__CSPI2_CLK);
+	mx31_pad_ctl (PAD_CTL_CSPI2_SS0, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_SS1, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_SS2, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_SCLK, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_SPI_RDY, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_MISO, 0);
+	mx31_pad_ctl (PAD_CTL_CSPI2_MOSI, 0);
 }
 
 int dram_init (void)
diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
index c0e516f..4d661e8 100644
--- a/include/asm-arm/arch-mx31/mx31-regs.h
+++ b/include/asm-arm/arch-mx31/mx31-regs.h
@@ -183,6 +183,11 @@
 #define MUX_CSPI2_MOSI__I2C2_SCL ((MUX_CTL_ALT1 << 8) | MUX_CTL_CSPI2_MOSI)
 #define MUX_CSPI2_MISO__I2C2_SDA ((MUX_CTL_ALT1 << 8) | MUX_CTL_CSPI2_MISO)
 
+#define MUX_CSPI2_MOSI__CSPI2_MOSI ((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_MOSI)
+#define MUX_CSPI2_MISO__CSPI2_MISO ((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_MISO)
+#define MUX_CSPI2_SS0__CSPI2_SS0_B ((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SS0)
+#define MUX_CSPI2_SCLK__CSPI2_CLK  ((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SCLK)
+
 #define MUX_I2C_CLK__I2C1_SCL	((MUX_CTL_FUNC << 8) | MUX_CTL_I2C_CLK)
 #define MUX_I2C_DAT__I2C1_SDA	((MUX_CTL_FUNC << 8) | MUX_CTL_I2C_DAT)
 
@@ -208,6 +213,13 @@
 #define	PAD_CTL_IO1_SHIFT		0
 #define	PAD_CTL_IO2_SHIFT		10
 #define	PAD_CTL_IO3_SHIFT		20
+#define PAD_CTL_CSPI2_SS2		((0x1F4 << 8) | PAD_CTL_IO3_SHIFT)
+#define PAD_CTL_CSPI2_SCLK		((0x1F4 << 8) | PAD_CTL_IO2_SHIFT)
+#define PAD_CTL_CSPI2_SPI_RDY		((0x1F4 << 8) | PAD_CTL_IO1_SHIFT)
+#define PAD_CTL_CSPI2_MISO		((0x1F8 << 8) | PAD_CTL_IO3_SHIFT)
+#define PAD_CTL_CSPI2_SS0		((0x1F8 << 8) | PAD_CTL_IO2_SHIFT)
+#define PAD_CTL_CSPI2_SS1		((0x1F8 << 8) | PAD_CTL_IO1_SHIFT)
+#define PAD_CTL_CSPI2_MOSI		((0x1FC << 8) | PAD_CTL_IO1_SHIFT)
 #define PAD_CTL_I2C_CLK			((0x21C << 8) | PAD_CTL_IO2_SHIFT)
 #define PAD_CTL_I2C_DAT			((0x21C << 8) | PAD_CTL_IO1_SHIFT)
 
diff --git a/include/configs/TQMA31.h b/include/configs/TQMA31.h
index f96fd74..ac81a32 100644
--- a/include/configs/TQMA31.h
+++ b/include/configs/TQMA31.h
@@ -191,6 +191,24 @@
 
 
 /*******************************************************************************
+ * SPI
+ ******************************************************************************/
+
+/* Use the processor internal controller */
+#define CONFIG_HARD_SPI			1
+#define CONFIG_MXC_SPI			1
+
+/* 0=CSPI1, 1=CSPI2, 2=CSPI3 */
+#define CONFIG_DEFAULT_SPI_BUS		1
+
+/* SCLK polarity: high; chipselect: active high */
+#define CONFIG_DEFAULT_SPI_MODE		(SPI_MODE_2 | SPI_CS_HIGH)
+
+/* Add PMIC RTC driver */
+#define CONFIG_RTC_MC13783		1
+
+
+/*******************************************************************************
  * Commands
  ******************************************************************************/
 
@@ -201,6 +219,8 @@
 #define CONFIG_CMD_I2C
 #define CONFIG_CMD_DTT
 #define CONFIG_CMD_EEPROM
+#define CONFIG_CMD_SPI
+#define CONFIG_CMD_DATE
 
 
 /*******************************************************************************