MX31: Add support for PMIC to the QONG module

Add support for the PMIC (MC13783) controller
and enables charging of the RTC battery.
Signed-off-by: NStefano Babic <sbabic@denx.de>

board/davedenx/qong/qong.c

@@ -26,6 +26,7 @@
 #include <asm/arch/mx31.h>
 #include <asm/arch/mx31-regs.h>
 #include <nand.h>
+#include <fsl_pmic.h>
 #include "qong_fpga.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -128,6 +129,13 @@ int board_init (void)
 	mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
 	mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
 
+	/* setup pins for SPI (pmic) */
+	mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B);
+	mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI);
+	mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO);
+	mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK);
+	mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B);
+
 	/* board id for linux */
 	gd->bd->bi_arch_number = MACH_TYPE_QONG;
 	gd->bd->bi_boot_params = (0x80000100);	/* adress of boot parameters */
@@ -135,6 +143,18 @@ int board_init (void)
 	return 0;
 }
 
+int board_late_init(void)
+{
+	u32 val;
+
+	/* Enable RTC battery */
+	val = pmic_reg_read(REG_POWER_CTL0);
+	pmic_reg_write(REG_POWER_CTL0, val | COINCHEN);
+	pmic_reg_write(REG_INT_STATUS1, RTCRSTI);
+
+	return 0;
+}
+
 int checkboard (void)
 {
 	printf("Board: DAVE/DENX Qong\n");

include/configs/qong.h

@@ -54,6 +54,17 @@
 
 #define CONFIG_MX31_GPIO
 
+#define CONFIG_MXC_SPI
+#define CONFIG_DEFAULT_SPI_BUS	1
+#define CONFIG_DEFAULT_SPI_MODE	(SPI_MODE_2 | SPI_CS_HIGH)
+#define CONFIG_RTC_MC13783
+
+#define CONFIG_FSL_PMIC
+#define CONFIG_FSL_PMIC_BUS	1
+#define CONFIG_FSL_PMIC_CS	0
+#define CONFIG_FSL_PMIC_CLK	100000
+#define CONFIG_FSL_PMIC_MODE	(SPI_MODE_2 | SPI_CS_HIGH)
+
 /* FPGA */
 #define CONFIG_QONG_FPGA	1
 #define CONFIG_FPGA_BASE	(CS1_BASE)
@@ -98,6 +109,9 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_MII
 #define CONFIG_CMD_NAND
+#define CONFIG_CMD_SPI
+#define CONFIG_CMD_DATE
+#define BOARD_LATE_INIT
 
 /*
  * You can compile in a MAC address and your custom net settings by using