[U-Boot] [PATCH 2/2 V3] EXYNOS: SMDK5250: Enable the pinmux setup
Rajeshwari Shinde
rajeshwari.s at samsung.com
Fri Jun 1 13:37:38 CEST 2012
Use the pinmux configuration function for SMDK5250.
Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s at samsung.com>
Acked-by: Chander Kashyap <chander.kashyap at linaro.org>
Acked-by: Simon Glass <sjg at 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
More information about the U-Boot
mailing list