void exynos5_spi_config(int peripheral)
{
int cfg = 0, pin = 0, i;
switch (peripheral) {
case PERIPH_ID_SPI0:
cfg = S5P_GPIO_FUNC(0x2);
pin = EXYNOS5_GPIO_A20;
break;
case PERIPH_ID_SPI1:
cfg = S5P_GPIO_FUNC(0x2);
pin = EXYNOS5_GPIO_A24;
break;
case PERIPH_ID_SPI2:
cfg = S5P_GPIO_FUNC(0x5);
pin = EXYNOS5_GPIO_B11;
break;
case PERIPH_ID_SPI3:
cfg = S5P_GPIO_FUNC(0x2);
pin = EXYNOS5_GPIO_F10;
break;
case PERIPH_ID_SPI4:
for (i = 0; i < 2; i++) {
gpio_cfg_pin(EXYNOS5_GPIO_F02 + i, S5P_GPIO_FUNC(0x4));
gpio_cfg_pin(EXYNOS5_GPIO_E04 + i, S5P_GPIO_FUNC(0x4));
}
break;
}
if (peripheral != PERIPH_ID_SPI4) {
for (i = pin; i < pin + 4; i++)
gpio_cfg_pin(i, cfg);
}
}
static void exynos_pinmux_i2c(int start, int func)
{
gpio_cfg_pin(start, GPIO_FUNC(func));
gpio_cfg_pin(start + 1, GPIO_FUNC(func));
gpio_set_pull(start, GPIO_PULL_NONE);
gpio_set_pull(start + 1, GPIO_PULL_NONE);
}
static void check_hw_revision(void)
{
int modelrev = 0;
int i;
/*
* GPM1[1:0]: MODEL_REV[1:0]
* Don't set as pull-none for these N/C pin.
* TRM say that it may cause unexcepted state and leakage current.
* and pull-none is only for output function.
*/
for (i = EXYNOS4X12_GPIO_M10; i < EXYNOS4X12_GPIO_M12; i++)
gpio_cfg_pin(i, S5P_GPIO_INPUT);
/* GPM1[5:2]: HW_REV[3:0] */
for (i = EXYNOS4X12_GPIO_M12; i < EXYNOS4X12_GPIO_M16; i++) {
gpio_cfg_pin(i, S5P_GPIO_INPUT);
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
}
/* GPM1[1:0]: MODEL_REV[1:0] */
for (i = 0; i < 2; i++)
modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
/* board_rev[15:8] = model */
board_rev = modelrev << 8;
}
int board_mmc_init(bd_t *bis)
{
int i, ret, ret_sd = 0;
/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
gpio_request(S5PC110_GPIO_J27, "massmemory_en");
gpio_direction_output(S5PC110_GPIO_J27, 1);
/*
* MMC0 GPIO
* GPG0[0] SD_0_CLK
* GPG0[1] SD_0_CMD
* GPG0[2] SD_0_CDn -> Not used
* GPG0[3:6] SD_0_DATA[0:3]
*/
for (i = S5PC110_GPIO_G00; i < S5PC110_GPIO_G07; i++) {
if (i == S5PC110_GPIO_G02)
continue;
/* GPG0[0:6] special function 2 */
gpio_cfg_pin(i, 0x2);
/* GPG0[0:6] pull disable */
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
/* GPG0[0:6] drv 4x */
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
ret = s5p_mmc_init(0, 4);
if (ret)
pr_err("MMC: Failed to init MMC:0.\n");
/*
* SD card (T_FLASH) detect and init
* T_FLASH_DETECT: EINT28: GPH3[4] input mode
*/
gpio_request(S5PC110_GPIO_H34, "t_flash_detect");
gpio_cfg_pin(S5PC110_GPIO_H34, S5P_GPIO_INPUT);
gpio_set_pull(S5PC110_GPIO_H34, S5P_GPIO_PULL_UP);
if (!gpio_get_value(S5PC110_GPIO_H34)) {
for (i = S5PC110_GPIO_G20; i < S5PC110_GPIO_G27; i++) {
if (i == S5PC110_GPIO_G22)
continue;
/* GPG2[0:6] special function 2 */
gpio_cfg_pin(i, 0x2);
/* GPG2[0:6] pull disable */
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
/* GPG2[0:6] drv 4x */
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
ret_sd = s5p_mmc_init(2, 4);
if (ret_sd)
pr_err("MMC: Failed to init SD card (MMC:2).\n");
}
return ret & ret_sd;
}
void exynos_pinmux_lcd(void)
{
gpio_cfg_pin(GPIO_Y25, GPIO_OUTPUT);
gpio_set_value(GPIO_Y25, 1);
gpio_cfg_pin(GPIO_X15, GPIO_OUTPUT);
gpio_set_value(GPIO_X15, 1);
gpio_cfg_pin(GPIO_X30, GPIO_OUTPUT);
gpio_set_value(GPIO_X30, 1);
}
void exynos_pinmux_spi4(void)
{
int i;
for (i = 0; i < 2; i++) {
gpio_cfg_pin(GPIO_F02 + i, GPIO_FUNC(0x4));
gpio_cfg_pin(GPIO_E04 + i, GPIO_FUNC(0x4));
}
}
int do_led_sample(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i, j;
struct s5p_gpio_bank gpio_bank;
unsigned char value, tmp = 0x0f;
unsigned char led_patten[] = {
0x0f, //0000_1111
0x0e, //0000_1110
0x0d, //0000_1101
0x0b, //0000_1011
0x07, //0000_0111
0x00, //0000_0000
0x05, //0000_0101
0x0a, //0000_1010
};
printf("%s\n", __func__);
gpio_bank.con = GPIO_M4_CON;
gpio_bank.dat = GPIO_M4_DAT;
gpio_bank.pull = GPIO_M4_PULL;
gpio_bank.drv = GPIO_M4_DRV;
gpio_bank.pdn_con = GPIO_M4_PDN_CON;
gpio_bank.pdn_pull = GPIO_M4_PDN_PULL;
/* configure gpio as output */
gpio_cfg_pin(&gpio_bank, 0, 1);
gpio_cfg_pin(&gpio_bank, 1, 1);
gpio_cfg_pin(&gpio_bank, 2, 1);
gpio_cfg_pin(&gpio_bank, 3, 1);
/* disabled GPM4PUD */
gpio_set_pull(&gpio_bank, 0, GPIO_PULL_NONE);
gpio_set_pull(&gpio_bank, 1, GPIO_PULL_NONE);
gpio_set_pull(&gpio_bank, 2, GPIO_PULL_NONE);
gpio_set_pull(&gpio_bank, 3, GPIO_PULL_NONE);
for (j = 0; j < 2; j++) {
tmp = 0x0f;
/* led_0 ~ led_3 off */
gpio_set_value(&gpio_bank, 0, 1);
gpio_set_value(&gpio_bank, 1, 1);
gpio_set_value(&gpio_bank, 2, 1);
gpio_set_value(&gpio_bank, 3, 1);
for (i = 0; i < 8; i++) {
tmp = tmp < i;
set_led(&gpio_bank, led_patten[i]);
udelay(1000000);
}
}
return 0;
}
static int exynos5_mmc_config(int peripheral, int flags)
{
int i, start, start_ext, gpio_func = 0;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
start = EXYNOS5_GPIO_C00;
start_ext = EXYNOS5_GPIO_C10;
gpio_func = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SDMMC1:
start = EXYNOS5_GPIO_C20;
start_ext = 0;
break;
case PERIPH_ID_SDMMC2:
start = EXYNOS5_GPIO_C30;
start_ext = EXYNOS5_GPIO_C43;
gpio_func = S5P_GPIO_FUNC(0x3);
break;
case PERIPH_ID_SDMMC3:
start = EXYNOS5_GPIO_C40;
start_ext = 0;
break;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return -1;
}
if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
debug("SDMMC device %d does not support 8bit mode",
peripheral);
return -1;
}
if (flags & PINMUX_FLAG_8BIT_MODE) {
for (i = start_ext; i <= (start_ext + 3); i++) {
gpio_cfg_pin(i, gpio_func);
gpio_set_pull(i, S5P_GPIO_PULL_UP);
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
}
for (i = start; i < (start + 2); i++) {
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
for (i = (start + 3); i <= (start + 6); i++) {
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
gpio_set_pull(i, S5P_GPIO_PULL_UP);
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
return 0;
}
static void exynos_dp_bridge_setup(void)
{
exynos_pinmux_dphpd();
gpio_set_value(dp_pd_l, 1);
gpio_cfg_pin(dp_pd_l, GPIO_OUTPUT);
gpio_set_pull(dp_pd_l, GPIO_PULL_NONE);
gpio_set_value(dp_rst_l, 0);
gpio_cfg_pin(dp_rst_l, GPIO_OUTPUT);
gpio_set_pull(dp_rst_l, GPIO_PULL_NONE);
udelay(10);
gpio_set_value(dp_rst_l, 1);
}
static void exynos5_i2s_config(int peripheral)
{
int i;
switch (peripheral) {
case PERIPH_ID_I2S0:
for (i = 0; i < 5; i++)
gpio_cfg_pin(EXYNOS5_GPIO_Z0 + i, S5P_GPIO_FUNC(0x02));
break;
case PERIPH_ID_I2S1:
for (i = 0; i < 5; i++)
gpio_cfg_pin(EXYNOS5_GPIO_B00 + i, S5P_GPIO_FUNC(0x02));
break;
}
}
int board_mmc_init(bd_t *bis)
{
int i, err;
/*
* MMC2 SD card GPIO:
*
* GPK2[0] SD_2_CLK(2)
* GPK2[1] SD_2_CMD(2)
* GPK2[2] SD_2_CDn
* GPK2[3:6] SD_2_DATA[0:3](2)
*/
for (i = EXYNOS4_GPIO_K20; i < EXYNOS4_GPIO_K27; i++) {
/* GPK2[0:6] special function 2 */
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
/* GPK2[0:6] drv 4x */
gpio_set_drv(i, S5P_GPIO_DRV_4X);
/* GPK2[0:1] pull disable */
if (i == EXYNOS4_GPIO_K20 || i == EXYNOS4_GPIO_K21) {
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
continue;
}
/* GPK2[2:6] pull up */
gpio_set_pull(i, S5P_GPIO_PULL_UP);
}
err = s5p_mmc_init(2, 4);
return err;
}
void exynos_cfg_lcd_gpio(void)
{
/* For Backlight */
gpio_request(EXYNOS5_GPIO_B20, "lcd_backlight");
gpio_cfg_pin(EXYNOS5_GPIO_B20, S5P_GPIO_OUTPUT);
gpio_set_value(EXYNOS5_GPIO_B20, 1);
}
int board_mmc_init(bd_t *bis)
{
int i;
/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
gpio_direction_output(&s5pc110_gpio->j2, 7, 1);
/*
* MMC0 GPIO
* GPG0[0] SD_0_CLK
* GPG0[1] SD_0_CMD
* GPG0[2] SD_0_CDn -> Not used
* GPG0[3:6] SD_0_DATA[0:3]
*/
for (i = 0; i < 7; i++) {
if (i == 2)
continue;
/* GPG0[0:6] special function 2 */
gpio_cfg_pin(&s5pc110_gpio->g0, i, 0x2);
/* GPG0[0:6] pull disable */
gpio_set_pull(&s5pc110_gpio->g0, i, GPIO_PULL_NONE);
/* GPG0[0:6] drv 4x */
gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
}
return s5p_mmc_init(0, 4);
}
static void exynos4x12_uart_config(int peripheral)
{
int i, start, count;
switch (peripheral) {
case PERIPH_ID_UART0:
start = EXYNOS4X12_GPIO_A00;
count = 4;
break;
case PERIPH_ID_UART1:
start = EXYNOS4X12_GPIO_A04;
count = 4;
break;
case PERIPH_ID_UART2:
start = EXYNOS4X12_GPIO_A10;
count = 4;
break;
case PERIPH_ID_UART3:
start = EXYNOS4X12_GPIO_A14;
count = 2;
break;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return;
}
for (i = start; i < (start + count); i++) {
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
}
}
static unsigned int get_hw_revision(void)
{
int hwrev = 0;
char str[10];
int i;
/* hw_rev[3:0] == GPE1[3:0] */
for (i = 0; i < 4; i++) {
int pin = i + EXYNOS4_GPIO_E10;
sprintf(str, "hw_rev%d", i);
gpio_request(pin, str);
gpio_cfg_pin(pin, S5P_GPIO_INPUT);
gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
}
udelay(1);
for (i = 0; i < 4; i++)
hwrev |= (gpio_get_value(EXYNOS4_GPIO_E10 + i) << i);
debug("hwrev 0x%x\n", hwrev);
return hwrev;
}
void exynos_pinmux_sromc(int bank, int sixteen_bit)
{
int i;
if (bank > 3) {
printk(BIOS_DEBUG, "Unsupported sromc bank %d.\n", bank);
return;
}
gpio_cfg_pin(GPIO_Y00 + bank, GPIO_FUNC(2));
gpio_cfg_pin(GPIO_Y04, GPIO_FUNC(2));
gpio_cfg_pin(GPIO_Y05, GPIO_FUNC(2));
for (i = 2; i < 4; i++)
gpio_cfg_pin(GPIO_Y10 + i, GPIO_FUNC(2));
for (i = 0; i < 8; i++) {
gpio_cfg_pin(GPIO_Y30 + i, GPIO_FUNC(2));
gpio_set_pull(GPIO_Y30 + i, GPIO_PULL_UP);
gpio_cfg_pin(GPIO_Y50 + i, GPIO_FUNC(2));
gpio_set_pull(GPIO_Y50 + i, GPIO_PULL_UP);
if (sixteen_bit) {
gpio_cfg_pin(GPIO_Y60 + i, GPIO_FUNC(2));
gpio_set_pull(GPIO_Y60 + i, GPIO_PULL_UP);
}
}
}
static int exynos4_mmc_config(int peripheral, int flags)
{
int i, start = 0, start_ext = 0;
unsigned int func, ext_func;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
start = EXYNOS4_GPIO_K00;
start_ext = EXYNOS4_GPIO_K13;
func = S5P_GPIO_FUNC(0x2);
ext_func = S5P_GPIO_FUNC(0x3);
break;
case PERIPH_ID_SDMMC2:
start = EXYNOS4_GPIO_K20;
start_ext = EXYNOS4_GPIO_K33;
func = S5P_GPIO_FUNC(0x2);
ext_func = S5P_GPIO_FUNC(0x3);
break;
case PERIPH_ID_SDMMC4:
start = EXYNOS4_GPIO_K00;
start_ext = EXYNOS4_GPIO_K13;
func = S5P_GPIO_FUNC(0x3);
ext_func = S5P_GPIO_FUNC(0x4);
break;
default:
return -1;
}
for (i = start; i < (start + 7); i++) {
if (i == (start + 2))
continue;
gpio_cfg_pin(i, func);
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
/* SDMMC2 do not use 8bit mode at exynos4 */
if (flags & PINMUX_FLAG_8BIT_MODE) {
for (i = start_ext; i < (start_ext + 4); i++) {
gpio_cfg_pin(i, ext_func);
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
gpio_set_drv(i, S5P_GPIO_DRV_4X);
}
}
return 0;
}
static void exynos_pinmux_uart(int start, int count)
{
int i;
for (i = start; i < start + count; i++) {
gpio_set_pull(i, GPIO_PULL_NONE);
gpio_cfg_pin(i, GPIO_FUNC(0x2));
}
}
void exynos_pinmux_i2s1(void)
{
int i;
for (i = 0; i < 5; i++) {
gpio_cfg_pin(GPIO_B00 + i, GPIO_FUNC(0x02));
gpio_set_pull(GPIO_B00 + i, GPIO_PULL_NONE);
}
}
void exynos5420_spi_config(int peripheral)
{
int cfg, pin, i;
switch (peripheral) {
case PERIPH_ID_SPI0:
pin = EXYNOS5420_GPIO_A20;
cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI1:
pin = EXYNOS5420_GPIO_A24;
cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI2:
pin = EXYNOS5420_GPIO_B11;
cfg = S5P_GPIO_FUNC(0x5);
break;
case PERIPH_ID_SPI3:
pin = EXYNOS5420_GPIO_F10;
cfg = S5P_GPIO_FUNC(0x2);
break;
case PERIPH_ID_SPI4:
cfg = 0;
pin = 0;
break;
default:
cfg = 0;
pin = 0;
debug("%s: invalid peripheral %d", __func__, peripheral);
return;
}
if (peripheral != PERIPH_ID_SPI4) {
for (i = pin; i < pin + 4; i++)
gpio_cfg_pin(i, cfg);
} else {
for (i = 0; i < 2; i++) {
gpio_cfg_pin(EXYNOS5420_GPIO_F02 + i,
S5P_GPIO_FUNC(0x4));
gpio_cfg_pin(EXYNOS5420_GPIO_E04 + i,
S5P_GPIO_FUNC(0x4));
}
}
}
static void exynos_pinmux_spi(int start, int cfg)
{
int i;
for (i = start; i < start + 4; i++) {
gpio_cfg_pin(i, cfg);
gpio_set_pull(i, GPIO_PULL_NONE);
gpio_set_drv(i, GPIO_DRV_3X);
}
}
static void exynos_pinmux_spi(int start, int cfg)
{
int i;
for (i = 0; i < 4; i++) {
gpio_cfg_pin(start + i, GPIO_FUNC(cfg));
gpio_set_pull(start + i, GPIO_PULL_NONE);
gpio_set_drv(start + i, GPIO_DRV_3X);
}
}
static void parade_dp_bridge_setup(void)
{
int i;
gpio_set_value(dp_pd_l, 1);
gpio_cfg_pin(dp_pd_l, GPIO_OUTPUT);
gpio_set_pull(dp_pd_l, GPIO_PULL_NONE);
gpio_set_value(dp_rst_l, 0);
gpio_cfg_pin(dp_rst_l, GPIO_OUTPUT);
gpio_set_pull(dp_rst_l, GPIO_PULL_NONE);
udelay(10);
gpio_set_value(dp_rst_l, 1);
gpio_set_pull(dp_hpd, GPIO_PULL_NONE);
gpio_cfg_pin(dp_hpd, GPIO_INPUT);
/* De-assert PD (and possibly RST) to power up the bridge. */
gpio_set_value(dp_pd_l, 1);
gpio_set_value(dp_rst_l, 1);
/* Hang around for the bridge to come up. */
mdelay(40);
/* Configure the bridge chip. */
exynos_pinmux_i2c7();
i2c_init(7, 100000, 0x00);
parade_ps8625_bridge_setup(7, 0x48, parade_writes,
ARRAY_SIZE(parade_writes));
/* Spin until the display is ready.
* It's quite important to try really hard to get the display up,
* so be generous. It will typically be ready in only 5 ms. and
* we're out of here.
* If it's not ready after a second, then we're in big trouble.
*/
for(i = 0; i < 1000; i++){
if (gpio_get_value(dp_hpd))
break;
mdelay(1);
}
}
static void exynos_pinmux_sdmmc(struct gpio *gpios, int num_gpios)
{
int i;
for (i = 0; i < num_gpios; i++) {
gpio_set_drv(gpios[i].pin, gpios[i].drv);
gpio_set_pull(gpios[i].pin, gpios[i].pull);
gpio_cfg_pin(gpios[i].pin, GPIO_FUNC(gpios[i].func));
}
}
static int exynos5_pinmux_config(int peripheral, int flags)
{
switch (peripheral) {
case PERIPH_ID_UART0:
case PERIPH_ID_UART1:
case PERIPH_ID_UART2:
case PERIPH_ID_UART3:
exynos5_uart_config(peripheral);
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
case PERIPH_ID_SDMMC2:
case PERIPH_ID_SDMMC3:
return exynos5_mmc_config(peripheral, flags);
case PERIPH_ID_SROMC:
exynos5_sromc_config(flags);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
case PERIPH_ID_I2C2:
case PERIPH_ID_I2C3:
case PERIPH_ID_I2C4:
case PERIPH_ID_I2C5:
case PERIPH_ID_I2C6:
case PERIPH_ID_I2C7:
exynos5_i2c_config(peripheral, flags);
break;
case PERIPH_ID_I2S0:
case PERIPH_ID_I2S1:
exynos5_i2s_config(peripheral);
break;
case PERIPH_ID_SPI0:
case PERIPH_ID_SPI1:
case PERIPH_ID_SPI2:
case PERIPH_ID_SPI3:
case PERIPH_ID_SPI4:
exynos5_spi_config(peripheral);
break;
case PERIPH_ID_DPHPD:
/* Set Hotplug detect for DP */
gpio_cfg_pin(EXYNOS5_GPIO_X07, S5P_GPIO_FUNC(0x3));
/*
* Hotplug detect should have an external pullup; disable the
* internal pulldown so they don't fight.
*/
gpio_set_pull(EXYNOS5_GPIO_X07, S5P_GPIO_PULL_NONE);
break;
default:
debug("%s: invalid peripheral %d", __func__, peripheral);
return -1;
}
return 0;
}
int board_dp_bridge_setup(const void *blob, unsigned *wait_ms)
{
int ret;
ret = board_dp_fill_gpios(blob);
if (ret)
return ret;
/* Mux HPHPD to the special hotplug detect mode */
exynos_pinmux_config(PERIPH_ID_DPHPD, 0);
/* Setup the GPIOs */
ret = fdtdec_setup_gpio(&local.dp_pd);
if (ret) {
debug("%s: Could not setup pd gpio (%d)\n", __func__, ret);
return ret;
}
ret = fdtdec_setup_gpio(&local.dp_rst);
if (ret) {
debug("%s: Could not setup rst gpio (%d)\n", __func__, ret);
return ret;
}
ret = fdtdec_setup_gpio(&local.dp_hpd);
if (ret) {
debug("%s: Could not setup hpd gpio (%d)\n", __func__, ret);
return ret;
}
fdtdec_set_gpio(&local.dp_pd, 0);
gpio_cfg_pin(local.dp_pd.gpio, EXYNOS_GPIO_OUTPUT);
gpio_set_pull(local.dp_pd.gpio, EXYNOS_GPIO_PULL_NONE);
if (fdt_gpio_isvalid(&local.dp_rst)) {
fdtdec_set_gpio(&local.dp_rst, 1);
gpio_cfg_pin(local.dp_rst.gpio, EXYNOS_GPIO_OUTPUT);
gpio_set_pull(local.dp_rst.gpio, EXYNOS_GPIO_PULL_NONE);
udelay(10);
fdtdec_set_gpio(&local.dp_rst, 0);
}
*wait_ms = 0;
return 0;
}
void exynos_pinmux_dphpd(void)
{
/* Set Hotplug detect for DP */
gpio_cfg_pin(GPIO_X07, GPIO_FUNC(0x3));
/*
* Hotplug detect should have an external pullup; disable the
* internal pulldown so they don't fight.
*/
gpio_set_pull(GPIO_X07, GPIO_PULL_NONE);
}
void exynos_backlight_on(unsigned int onoff)
{
/* For PWM */
gpio_request(EXYNOS5420_GPIO_B20, "backlight_on");
gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(0x1));
gpio_set_value(EXYNOS5420_GPIO_B20, 1);
#ifdef CONFIG_POWER_TPS65090
tps65090_fet_enable(1);
#endif
}
void gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en)
{
unsigned int value;
gpio_cfg_pin(bank, gpio, GPIO_OUTPUT);
value = readl(&bank->dat);
value &= ~DAT_MASK(gpio);
if (en)
value |= DAT_SET(gpio);
writel(value, &bank->dat);
}
static void exynos_pinmux_sdmmc(int start, int start_ext)
{
int i;
if (start_ext) {
for (i = 0; i <= 3; i++) {
gpio_cfg_pin(start_ext + i, GPIO_FUNC(0x2));
gpio_set_pull(start_ext + i, GPIO_PULL_UP);
gpio_set_drv(start_ext + i, GPIO_DRV_4X);
}
}
for (i = 0; i < 2; i++) {
gpio_cfg_pin(start + i, GPIO_FUNC(0x2));
gpio_set_pull(start + i, GPIO_PULL_NONE);
gpio_set_drv(start + i, GPIO_DRV_4X);
}
for (i = 2; i <= 6; i++) {
gpio_cfg_pin(start + i, GPIO_FUNC(0x2));
gpio_set_pull(start + i, GPIO_PULL_UP);
gpio_set_drv(start + i, GPIO_DRV_4X);
}
}
