exynos: universal_c210: Move to driver model soft_spi

Adjust this board to use the driver model soft_spi implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>

arch/arm/dts/exynos4210-universal_c210.dts

@@ -41,6 +41,19 @@
 		status = "disabled";
 	};
 
+	soft-spi {
+		compatible = "u-boot,soft-spi";
+		cs-gpio = <&gpio 235 0>;	/* Y43 */
+		sclk-gpio = <&gpio 225 0>;	/* Y31 */
+		mosi-gpio = <&gpio 227 0>;	/* Y33 */
+		miso-gpio = <&gpio 224 0>;	/* Y30 */
+		spi-delay-us = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cs@0 {
+		};
+	};
+
 	fimd@11c00000 {
 		compatible = "samsung,exynos-fimd";
 		reg = <0x11c00000 0xa4>;

board/samsung/universal_c210/universal.c

@@ -201,53 +201,6 @@ int exynos_early_init_f(void)
 	return 0;
 }
 
-#ifdef CONFIG_SOFT_SPI
-static void soft_spi_init(void)
-{
-	gpio_direction_output(CONFIG_SOFT_SPI_GPIO_SCLK,
-		CONFIG_SOFT_SPI_MODE & SPI_CPOL);
-	gpio_direction_output(CONFIG_SOFT_SPI_GPIO_MOSI, 1);
-	gpio_direction_input(CONFIG_SOFT_SPI_GPIO_MISO);
-	gpio_direction_output(CONFIG_SOFT_SPI_GPIO_CS,
-		!(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
-	gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
-		!(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
-	SPI_SCL(1);
-	gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
-		CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH);
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
-	gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
-		!(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
-}
-
-int  spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
-	return bus == 0 && cs == 0;
-}
-
-void universal_spi_scl(int bit)
-{
-	gpio_set_value(CONFIG_SOFT_SPI_GPIO_SCLK, bit);
-}
-
-void universal_spi_sda(int bit)
-{
-	gpio_set_value(CONFIG_SOFT_SPI_GPIO_MOSI, bit);
-}
-
-int universal_spi_read(void)
-{
-	return gpio_get_value(CONFIG_SOFT_SPI_GPIO_MISO);
-}
-#endif
-
 static void init_pmic_lcd(void)
 {
 	unsigned char val;
@@ -332,8 +285,6 @@ void exynos_cfg_lcd_gpio(void)
 	/* gpio pad configuration for LCD reset. */
 	gpio_request(EXYNOS4_GPIO_Y45, "lcd_reset");
 	gpio_cfg_pin(EXYNOS4_GPIO_Y45, S5P_GPIO_OUTPUT);
-
-	spi_init();
 }
 
 int mipi_power(void)
@@ -401,9 +352,6 @@ int exynos_init(void)
 		break;
 	}
 
-#ifdef CONFIG_SOFT_SPI
-	soft_spi_init();
-#endif
 	check_hw_revision();
 	printf("HW Revision:\t0x%x\n", board_rev);
 

include/configs/s5pc210_universal.h

@@ -187,16 +187,7 @@
  * SPI Settings
  */
 #define CONFIG_SOFT_SPI
-#define CONFIG_SOFT_SPI_MODE SPI_MODE_3
-#define CONFIG_SOFT_SPI_GPIO_SCLK EXYNOS4_GPIO_Y31
-#define CONFIG_SOFT_SPI_GPIO_MOSI EXYNOS4_GPIO_Y33
-#define CONFIG_SOFT_SPI_GPIO_MISO EXYNOS4_GPIO_Y30
-#define CONFIG_SOFT_SPI_GPIO_CS EXYNOS4_GPIO_Y43
-
-#define SPI_DELAY udelay(1)
-#define SPI_SCL(bit) universal_spi_scl(bit)
-#define SPI_SDA(bit) universal_spi_sda(bit)
-#define SPI_READ universal_spi_read()
+
 #ifndef	__ASSEMBLY__
 void universal_spi_scl(int bit);
 void universal_spi_sda(int bit);