int exynos_init(void)
{
gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
switch (get_hwrev()) {
case 0:
/*
* Set the low to enable LDO_EN
* But when you use the test board for eMMC booting
* you should set it HIGH since it removes the inverter
*/
/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
s5p_gpio_direction_output(&gpio1->e3, 6, 0);
break;
default:
/*
* Default reset state is High and there's no inverter
* But set it as HIGH to ensure
*/
/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
s5p_gpio_direction_output(&gpio1->e1, 3, 1);
break;
}
#ifdef CONFIG_SOFT_SPI
soft_spi_init();
#endif
check_hw_revision();
printf("HW Revision:\t0x%x\n", board_rev);
return 0;
}
void exynos_reset_lcd(void)
{
struct exynos4_gpio_part2 *gpio2 =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
s5p_gpio_direction_output(&gpio2->y4, 5, 1);
udelay(10000);
s5p_gpio_direction_output(&gpio2->y4, 5, 0);
udelay(10000);
s5p_gpio_direction_output(&gpio2->y4, 5, 1);
}
int board_mmc_init(bd_t *bis)
{
int err;
switch (get_hwrev()) {
case 0:
/*
* Set the low to enable LDO_EN
* But when you use the test board for eMMC booting
* you should set it HIGH since it removes the inverter
*/
/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
s5p_gpio_direction_output(&gpio1->e3, 6, 0);
break;
default:
/*
* Default reset state is High and there's no inverter
* But set it as HIGH to ensure
*/
/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
s5p_gpio_direction_output(&gpio1->e1, 3, 1);
break;
}
/*
* MMC device init
* mmc0 : eMMC (8-bit buswidth)
* mmc2 : SD card (4-bit buswidth)
*/
err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
if (err)
debug("SDMMC0 not configured\n");
else
err = s5p_mmc_init(0, 8);
/* T-flash detect */
s5p_gpio_cfg_pin(&gpio2->x3, 4, 0xf);
s5p_gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);
/*
* Check the T-flash detect pin
* GPX3[4] T-flash detect pin
*/
if (!s5p_gpio_get_value(&gpio2->x3, 4)) {
err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
if (err)
debug("SDMMC2 not configured\n");
else
err = s5p_mmc_init(2, 4);
}
return err;
}
void i2c_init_board(void)
{
struct exynos4_gpio_part1 *gpio1 =
(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
struct exynos4_gpio_part2 *gpio2 =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
/* I2C_5 -> PMIC -> Adapter 0 */
s5p_gpio_direction_output(&gpio1->b, 7, 1);
s5p_gpio_direction_output(&gpio1->b, 6, 1);
/* I2C_9 -> FG -> Adapter 1 */
s5p_gpio_direction_output(&gpio2->y4, 0, 1);
s5p_gpio_direction_output(&gpio2->y4, 1, 1);
}
static void board_uart_init(void)
{
struct exynos4_gpio_part1 *gpio1 =
(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
struct exynos4_gpio_part2 *gpio2 =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
int i;
/*
* UART2 GPIOs
* GPA1CON[0] = UART_2_RXD(2)
* GPA1CON[1] = UART_2_TXD(2)
* GPA1CON[2] = I2C_3_SDA (3)
* GPA1CON[3] = I2C_3_SCL (3)
*/
for (i = 0; i < 4; i++) {
s5p_gpio_set_pull(&gpio1->a1, i, GPIO_PULL_NONE);
s5p_gpio_cfg_pin(&gpio1->a1, i, GPIO_FUNC((i > 1) ? 0x3 : 0x2));
}
/* UART_SEL GPY4[7] (part2) at EXYNOS4 */
s5p_gpio_set_pull(&gpio2->y4, 7, GPIO_PULL_UP);
s5p_gpio_direction_output(&gpio2->y4, 7, 1);
}
int board_mmc_init(bd_t *bis)
{
int i;
/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
s5p_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 */
s5p_gpio_cfg_pin(&s5pc110_gpio->g0, i, 0x2);
/* GPG0[0:6] pull disable */
s5p_gpio_set_pull(&s5pc110_gpio->g0, i, GPIO_PULL_NONE);
/* GPG0[0:6] drv 4x */
s5p_gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
}
return s5p_mmc_init(0, 4);
}
int board_usb_init(int index, enum usb_init_type init)
{
struct exynos5_gpio_part1 *gpio = (struct exynos5_gpio_part1 *)
samsung_get_base_gpio_part1();
/* Configure gpios for usb 3503 hub:
* disconnect, toggle reset and connect
*/
s5p_gpio_direction_output(&gpio->d1, 7, 0);
s5p_gpio_direction_output(&gpio->x3, 5, 0);
s5p_gpio_direction_output(&gpio->x3, 5, 1);
s5p_gpio_direction_output(&gpio->d1, 7, 1);
return 0;
}
void i2c_init_board(void)
{
int err;
struct exynos4_gpio_part2 *gpio2 =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
/* I2C_5 -> PMIC */
err = exynos_pinmux_config(PERIPH_ID_I2C5, PINMUX_FLAG_NONE);
if (err) {
debug("I2C%d not configured\n", (I2C_5));
return;
}
/* I2C_8 -> FG */
s5p_gpio_direction_output(&gpio2->y4, 0, 1);
s5p_gpio_direction_output(&gpio2->y4, 1, 1);
}
static void pmic_reset(void)
{
struct exynos4_gpio_part2 *gpio =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
s5p_gpio_direction_output(&gpio->x0, 7, 1);
s5p_gpio_set_pull(&gpio->x2, 7, GPIO_PULL_NONE);
}
static void board_enable_audio_codec(void)
{
struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *)
samsung_get_base_gpio_part1();
/* Enable MAX98095 Codec */
s5p_gpio_direction_output(&gpio1->x1, 7, 1);
s5p_gpio_set_pull(&gpio1->x1, 7, GPIO_PULL_NONE);
}
void exynos_reset_lcd(void)
{
gpio1 = (struct exynos4x12_gpio_part1 *)samsung_get_base_gpio_part1();
/* reset lcd */
s5p_gpio_direction_output(&gpio1->f2, 1, 0);
udelay(10);
s5p_gpio_set_value(&gpio1->f2, 1, 1);
}
int board_mmc_init(bd_t *bis)
{
int i, ret, ret_sd = 0;
/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
s5p_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 */
s5p_gpio_cfg_pin(&s5pc110_gpio->g0, i, 0x2);
/* GPG0[0:6] pull disable */
s5p_gpio_set_pull(&s5pc110_gpio->g0, i, GPIO_PULL_NONE);
/* GPG0[0:6] drv 4x */
s5p_gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
}
ret = s5p_mmc_init(0, 4);
if (ret)
error("MMC: Failed to init MMC:0.\n");
/*
* SD card (T_FLASH) detect and init
* T_FLASH_DETECT: EINT28: GPH3[4] input mode
*/
s5p_gpio_cfg_pin(&s5pc110_gpio->h3, 4, GPIO_INPUT);
s5p_gpio_set_pull(&s5pc110_gpio->h3, 4, GPIO_PULL_UP);
if (!s5p_gpio_get_value(&s5pc110_gpio->h3, 4)) {
for (i = 0; i < 7; i++) {
if (i == 2)
continue;
/* GPG2[0:6] special function 2 */
s5p_gpio_cfg_pin(&s5pc110_gpio->g2, i, 0x2);
/* GPG2[0:6] pull disable */
s5p_gpio_set_pull(&s5pc110_gpio->g2, i, GPIO_PULL_NONE);
/* GPG2[0:6] drv 4x */
s5p_gpio_set_drv(&s5pc110_gpio->g2, i, GPIO_DRV_4X);
}
ret_sd = s5p_mmc_init(2, 4);
if (ret_sd)
error("MMC: Failed to init SD card (MMC:2).\n");
}
return ret & ret_sd;
}
int board_usb_vbus_init(void)
{
struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *)
samsung_get_base_gpio_part1();
/* Enable VBUS power switch */
s5p_gpio_direction_output(&gpio1->x2, 6, 1);
/* VBUS turn ON time */
mdelay(3);
return 0;
}
static void board_init_i2c(void)
{
int err;
gpio1 = (struct exynos4x12_gpio_part1 *)samsung_get_base_gpio_part1();
gpio2 = (struct exynos4x12_gpio_part2 *)samsung_get_base_gpio_part2();
/* I2C_7 */
err = exynos_pinmux_config(PERIPH_ID_I2C7, PINMUX_FLAG_NONE);
if (err) {
debug("I2C%d not configured\n", (I2C_7));
return;
}
/* I2C_8 */
s5p_gpio_direction_output(&gpio1->f1, 4, 1);
s5p_gpio_direction_output(&gpio1->f1, 5, 1);
/* I2C_9 */
s5p_gpio_direction_output(&gpio2->m2, 1, 1);
s5p_gpio_direction_output(&gpio2->m2, 0, 1);
}
void exynos_lcd_power_on(void)
{
struct pmic *p = pmic_get("MAX77686_PMIC");
gpio1 = (struct exynos4x12_gpio_part1 *)samsung_get_base_gpio_part1();
/* LCD_2.2V_EN: GPC0[1] */
s5p_gpio_set_pull(&gpio1->c0, 1, GPIO_PULL_UP);
s5p_gpio_direction_output(&gpio1->c0, 1, 1);
/* LDO25 VCC_3.1V_LCD */
pmic_probe(p);
max77686_set_ldo_voltage(p, 25, 3100000);
max77686_set_ldo_mode(p, 25, OPMODE_LPM);
}
int board_mmc_init(bd_t *bis)
{
struct exynos4_gpio_part2 *gpio =
(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
int err;
/* eMMC_EN: SD_0_CDn: GPK0[2] Output High */
s5p_gpio_direction_output(&gpio->k0, 2, 1);
s5p_gpio_set_pull(&gpio->k0, 2, GPIO_PULL_NONE);
/*
* MMC device init
* mmc0 : eMMC (8-bit buswidth)
* mmc2 : SD card (4-bit buswidth)
*/
err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
if (err)
debug("SDMMC0 not configured\n");
else
err = s5p_mmc_init(0, 8);
/* T-flash detect */
s5p_gpio_cfg_pin(&gpio->x3, 4, 0xf);
s5p_gpio_set_pull(&gpio->x3, 4, GPIO_PULL_UP);
/*
* Check the T-flash detect pin
* GPX3[4] T-flash detect pin
*/
if (!s5p_gpio_get_value(&gpio->x3, 4)) {
err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
if (err)
debug("SDMMC2 not configured\n");
else
err = s5p_mmc_init(2, 4);
}
return err;
}
int gpio_direction_output(unsigned gpio, int value)
{
s5p_gpio_direction_output(s5p_gpio_get_bank(gpio),
s5p_gpio_get_pin(gpio), value);
return 0;
}
int gpio_direction_output(int nr, int value)
{
s5p_gpio_direction_output(s5p_gpio_get_bank(nr),
s5p_gpio_get_pin(nr), value);
return 0;
}
int board_mmc_init(bd_t *bis)
{
int i, err;
switch (get_hwrev()) {
case 0:
/*
* Set the low to enable LDO_EN
* But when you use the test board for eMMC booting
* you should set it HIGH since it removes the inverter
*/
/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
s5p_gpio_direction_output(&gpio1->e3, 6, 0);
break;
default:
/*
* Default reset state is High and there's no inverter
* But set it as HIGH to ensure
*/
/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
s5p_gpio_direction_output(&gpio1->e1, 3, 1);
break;
}
/*
* eMMC GPIO:
* SDR 8-bit@48MHz at MMC0
* GPK0[0] SD_0_CLK(2)
* GPK0[1] SD_0_CMD(2)
* GPK0[2] SD_0_CDn -> Not used
* GPK0[3:6] SD_0_DATA[0:3](2)
* GPK1[3:6] SD_0_DATA[0:3](3)
*
* DDR 4-bit@26MHz at MMC4
* GPK0[0] SD_4_CLK(3)
* GPK0[1] SD_4_CMD(3)
* GPK0[2] SD_4_CDn -> Not used
* GPK0[3:6] SD_4_DATA[0:3](3)
* GPK1[3:6] SD_4_DATA[4:7](4)
*/
for (i = 0; i < 7; i++) {
if (i == 2)
continue;
/* GPK0[0:6] special function 2 */
s5p_gpio_cfg_pin(&gpio2->k0, i, 0x2);
/* GPK0[0:6] pull disable */
s5p_gpio_set_pull(&gpio2->k0, i, GPIO_PULL_NONE);
/* GPK0[0:6] drv 4x */
s5p_gpio_set_drv(&gpio2->k0, i, GPIO_DRV_4X);
}
for (i = 3; i < 7; i++) {
/* GPK1[3:6] special function 3 */
s5p_gpio_cfg_pin(&gpio2->k1, i, 0x3);
/* GPK1[3:6] pull disable */
s5p_gpio_set_pull(&gpio2->k1, i, GPIO_PULL_NONE);
/* GPK1[3:6] drv 4x */
s5p_gpio_set_drv(&gpio2->k1, i, GPIO_DRV_4X);
}
/* T-flash detect */
s5p_gpio_cfg_pin(&gpio2->x3, 4, 0xf);
s5p_gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);
/*
* MMC device init
* mmc0 : eMMC (8-bit buswidth)
* mmc2 : SD card (4-bit buswidth)
*/
err = s5p_mmc_init(0, 8);
/*
* Check the T-flash detect pin
* GPX3[4] T-flash detect pin
*/
if (!s5p_gpio_get_value(&gpio2->x3, 4)) {
/*
* SD card GPIO:
* GPK2[0] SD_2_CLK(2)
* GPK2[1] SD_2_CMD(2)
* GPK2[2] SD_2_CDn -> Not used
* GPK2[3:6] SD_2_DATA[0:3](2)
*/
for (i = 0; i < 7; i++) {
if (i == 2)
continue;
/* GPK2[0:6] special function 2 */
s5p_gpio_cfg_pin(&gpio2->k2, i, 0x2);
/* GPK2[0:6] pull disable */
s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
/* GPK2[0:6] drv 4x */
s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
}
err = s5p_mmc_init(2, 4);
}
return err;
}
