[U-Boot] [PATCH 2/2 V3] EXYNOS: SMDK5250: Enable the pinmux setup

1 Jun 2012

Use the pinmux configuration function for SMDK5250.
Signed-off-by: Abhilash Kesavan a.kesavan@samsung.com
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com
Acked-by: Chander Kashyap chander.kashyap@linaro.org
Acked-by: Simon Glass sjg@chromium.org
---
Changes in V2:
    - Removed exynos5_gpio_part1 *gpio1 global variable as initialised in
    pinmux.c.
Changes in V3:
    - Added a error return for smc9115_pre_init and board_uart_init.
 board/samsung/smdk5250/smdk5250.c |  176 ++++++++-----------------------------
 1 files changed, 38 insertions(+), 138 deletions(-)

diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 32786e2..4d16950 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -26,81 +26,16 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
+#include <asm/arch/pinmux.h>
 #include <asm/arch/sromc.h>
DECLARE_GLOBAL_DATA_PTR;
-struct exynos5_gpio_part1 *gpio1;
#ifdef CONFIG_SMC911X
-static void smc9115_pre_init(void)
+static int smc9115_pre_init(void)
 {
    u32 smc_bw_conf, smc_bc_conf;
-	int i;
-
-	/*
-	 * SROM:CS1 and EBI
-	 *
-	 * GPY0[0]	SROM_CSn[0]
-	 * GPY0[1]	SROM_CSn[1](2)
-	 * GPY0[2]	SROM_CSn[2]
-	 * GPY0[3]	SROM_CSn[3]
-	 * GPY0[4]	EBI_OEn(2)
-	 * GPY0[5]	EBI_EEn(2)
-	 *
-	 * GPY1[0]	EBI_BEn[0](2)
-	 * GPY1[1]	EBI_BEn[1](2)
-	 * GPY1[2]	SROM_WAIT(2)
-	 * GPY1[3]	EBI_DATA_RDn(2)
-	 */
-	s5p_gpio_cfg_pin(&gpio1->y0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
-	s5p_gpio_cfg_pin(&gpio1->y0, 4, GPIO_FUNC(2));
-	s5p_gpio_cfg_pin(&gpio1->y0, 5, GPIO_FUNC(2));
-
-	for (i = 0; i < 4; i++)
-		s5p_gpio_cfg_pin(&gpio1->y1, i, GPIO_FUNC(2));
-
-	/*
-	 * EBI: 8 Addrss Lines
-	 *
-	 * GPY3[0]	EBI_ADDR[0](2)
-	 * GPY3[1]	EBI_ADDR[1](2)
-	 * GPY3[2]	EBI_ADDR[2](2)
-	 * GPY3[3]	EBI_ADDR[3](2)
-	 * GPY3[4]	EBI_ADDR[4](2)
-	 * GPY3[5]	EBI_ADDR[5](2)
-	 * GPY3[6]	EBI_ADDR[6](2)
-	 * GPY3[7]	EBI_ADDR[7](2)
-	 *
-	 * EBI: 16 Data Lines
-	 *
-	 * GPY5[0]	EBI_DATA[0](2)
-	 * GPY5[1]	EBI_DATA[1](2)
-	 * GPY5[2]	EBI_DATA[2](2)
-	 * GPY5[3]	EBI_DATA[3](2)
-	 * GPY5[4]	EBI_DATA[4](2)
-	 * GPY5[5]	EBI_DATA[5](2)
-	 * GPY5[6]	EBI_DATA[6](2)
-	 * GPY5[7]	EBI_DATA[7](2)
-	 *
-	 * GPY6[0]	EBI_DATA[8](2)
-	 * GPY6[1]	EBI_DATA[9](2)
-	 * GPY6[2]	EBI_DATA[10](2)
-	 * GPY6[3]	EBI_DATA[11](2)
-	 * GPY6[4]	EBI_DATA[12](2)
-	 * GPY6[5]	EBI_DATA[13](2)
-	 * GPY6[6]	EBI_DATA[14](2)
-	 * GPY6[7]	EBI_DATA[15](2)
-	 */
-	for (i = 0; i < 8; i++) {
-		s5p_gpio_cfg_pin(&gpio1->y3, i, GPIO_FUNC(2));
-		s5p_gpio_set_pull(&gpio1->y3, i, GPIO_PULL_UP);
-
-		s5p_gpio_cfg_pin(&gpio1->y5, i, GPIO_FUNC(2));
-		s5p_gpio_set_pull(&gpio1->y5, i, GPIO_PULL_UP);
-
-		s5p_gpio_cfg_pin(&gpio1->y6, i, GPIO_FUNC(2));
-		s5p_gpio_set_pull(&gpio1->y6, i, GPIO_PULL_UP);
-	}
+	int err;
/* Ethernet needs data bus width of 16 bits */
    smc_bw_conf = SROMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK)
@@ -112,14 +47,20 @@ static void smc9115_pre_init(void)
    		| SROMC_BC_PMC(0x01);
/* Select and configure the SROMC bank */
+	err = exynos_pinmux_config(PERIPH_ID_SROMC,
+				CONFIG_ENV_SROM_BANK | PINMUX_FLAG_16BIT);
+	if (err < 0) {
+		debug("SROMC not configured\n");
+		return -1;
+	}
+
    s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
+	return 0;
 }
 #endif
int board_init(void)
 {
-	gpio1 = (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
-
    gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
    return 0;
 }
@@ -168,7 +109,8 @@ void dram_init_banksize(void)
 int board_eth_init(bd_t *bis)
 {
 #ifdef CONFIG_SMC911X
-	smc9115_pre_init();
+	if (smc9115_pre_init())
+		return -1;
    return smc911x_initialize(0, CONFIG_SMC911X_BASE);
 #endif
    return 0;
@@ -186,31 +128,12 @@ int checkboard(void)
 #ifdef CONFIG_GENERIC_MMC
 int board_mmc_init(bd_t *bis)
 {
-	int i, err;
-
-	/*
-	 * MMC2 SD card GPIO:
-	 *
-	 * GPC2[0]	SD_2_CLK(2)
-	 * GPC2[1]	SD_2_CMD(2)
-	 * GPC2[2]	SD_2_CDn
-	 * GPC2[3:6]	SD_2_DATA[0:3](2)
-	 */
-	for (i = 0; i < 7; i++) {
-		/* GPC2[0:6] special function 2 */
-		s5p_gpio_cfg_pin(&gpio1->c2, i, GPIO_FUNC(0x2));
-
-		/* GPK2[0:6] drv 4x */
-		s5p_gpio_set_drv(&gpio1->c2, i, GPIO_DRV_4X);
+	int err;
-		/* GPK2[0:1] pull disable */
-		if (i == 0 || i == 1) {
-			s5p_gpio_set_pull(&gpio1->c2, i, GPIO_PULL_NONE);
-			continue;
-		}
-
-		/* GPK2[2:6] pull up */
-		s5p_gpio_set_pull(&gpio1->c2, i, GPIO_PULL_UP);
+	err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
+	if (err < 0) {
+		debug("SDMMC2 not configured\n");
+		return err;
    }
err = s5p_mmc_init(2, 4);
@@ -218,63 +141,40 @@ int board_mmc_init(bd_t *bis)
 }
 #endif
-static void board_uart_init(void)
+static int board_uart_init(void)
 {
-	struct exynos5_gpio_part1 *gpio1 =
-		(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
-	int i;
+	int err;
-	/*
-	 * UART0 GPIOs : GPA0CON[3:0] 0x2222
-	 * Must set CFG17 switches to select UART0 to use.
-	 */
-	for (i = 0; i <= 3; i++) {
-		s5p_gpio_set_pull(&gpio1->a0, i, GPIO_PULL_NONE);
-		s5p_gpio_cfg_pin(&gpio1->a0, i, GPIO_FUNC(0x2));
+	err = exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
+	if (err < 0) {
+		debug("UART0 not configured\n");
+		return err;
    }
-	/*
-	 * UART1 GPIOs : GPA0CON[5:4] 0x22
-	 * Must set CFG17 switches to select UART1 to use.
-	 *
-	 * This only sets RXD/TXD, as RTS/CTS need a resistor soldered down
-	 * in order to use them (so that those pins can be used for I2C).
-	 */
-	for (i = 4; i <= 5; i++) {
-		s5p_gpio_set_pull(&gpio1->a0, i, GPIO_PULL_NONE);
-		s5p_gpio_cfg_pin(&gpio1->a0, i, GPIO_FUNC(0x2));
+	err = exynos_pinmux_config(PERIPH_ID_UART1, PINMUX_FLAG_NONE);
+	if (err < 0) {
+		debug("UART1 not configured\n");
+		return err;
    }
-	/*
-	 * UART2 GPIOs : GPA1CON[1:0] 0x22
-	 * Must set CFG17 switches to select UART2 to use.
-	 *
-	 * This only sets RXD/TXD, as RTS/CTS need a resistor soldered down
-	 * in order to use them (so that those pins can be used for I2C).
-	 */
-	for (i = 0; i <= 1; i++) {
-		s5p_gpio_set_pull(&gpio1->a1, i, GPIO_PULL_NONE);
-		s5p_gpio_cfg_pin(&gpio1->a1, i, GPIO_FUNC(0x2));
+	err = exynos_pinmux_config(PERIPH_ID_UART2, PINMUX_FLAG_NONE);
+	if (err < 0) {
+		debug("UART2 not configured\n");
+		return err;
    }
-	/*
-	 * UART3 GPIOs : GPA1CON[5:4] 0x22
-	 * Must set CFG16 switches to select UART3 to use.
-	 */
-	for (i = 4; i <= 5; i++) {
-		s5p_gpio_set_pull(&gpio1->a1, i, GPIO_PULL_NONE);
-		s5p_gpio_cfg_pin(&gpio1->a1, i, GPIO_FUNC(0x2));
+	err = exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
+	if (err < 0) {
+		debug("UART3 not configured\n");
+		return err;
    }
-	/*
-	 * There's no mux for UART4--it's internal only
-	 */
+	return 0;
 }
#ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_early_init_f(void)
 {
-	board_uart_init();
-	return 0;
+	return board_uart_init();
 }
 #endif
-- 
1.7.4.4


    

Rajeshwari Shinde

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