static void check_hw_revision(void)
{
int modelrev = 0;
int i;
gpio2 = (struct exynos4x12_gpio_part2 *)samsung_get_base_gpio_part2();
/*
* 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 = 0; i < 2; i++)
s5p_gpio_cfg_pin(&gpio2->m1, i, GPIO_INPUT);
/* GPM1[5:2]: HW_REV[3:0] */
for (i = 2; i < 6; i++) {
s5p_gpio_cfg_pin(&gpio2->m1, i, GPIO_INPUT);
s5p_gpio_set_pull(&gpio2->m1, i, GPIO_PULL_NONE);
}
/* GPM1[1:0]: MODEL_REV[1:0] */
for (i = 0; i < 2; i++)
modelrev |= (s5p_gpio_get_value(&gpio2->m1, 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 */
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;
}
/* Set Initial global variables */
s5pc110_gpio = (struct s5pc110_gpio *)S5PC110_GPIO_BASE;
//smc9115_pre_init();
pwm_pre_init();
gd->bd->bi_arch_number = MACH_TYPE_SMDKC100;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
}
#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
printf("\nBoard: FriendlyARM-TINY210\n");
return 0;
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return rc;
}
ulong virt_to_phy_smdkc110(ulong addr)
{
if ((0xc0000000 <= addr) && (addr < 0xd0000000))
return (addr - 0xc0000000 + 0x20000000);
else
printf("The input address don't need "\
"a virtual-to-physical translation : %08lx\n", addr);
return addr;
}
#ifdef CONFIG_GENERIC_MMC
#define MOUTMMC (50000000) /* 50MHz */
int board_mmc_init(bd_t *bis)
{
int i;
struct s5pc110_clock *clk =
(struct s5pc110_clock *)samsung_get_base_clock();
unsigned long clk_src, clk_div, mpll, div;
/*
* 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]
*
* MMC1 GPIO
* GPG1[0] SD_1_CLK
* GPG1[1] SD_1_CMD
* GPG1[2] SD_1_CDn -> Not used
* GPG1[3:6] SD_1_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);
/* GPG1[0:6] special function 2 */
s5p_gpio_cfg_pin(&s5pc110_gpio->g1, i, 0x2);
/* GPG1[0:6] pull disable */
s5p_gpio_set_pull(&s5pc110_gpio->g1, i, GPIO_PULL_NONE);
/* GPG1[0:6] drv 4x */
s5p_gpio_set_drv(&s5pc110_gpio->g1, i, GPIO_DRV_4X);
}
clk_src = readl(&clk->res9[0]); /* CLK_SRC4 */
clk_src &= ~((0xf << 4) | 0xf);
clk_src |= (0x6 << 4) | 0x6; /* Set MMC0/1_SEL to SCLK_MPLL */
mpll = get_pll_clk(MPLL);
div = ((mpll + MOUTMMC) / MOUTMMC) - 1;
clk_div = readl(&clk->div4);
clk_div &= ~((0xf << 4) | 0xf);
clk_div |= (div << 4) | div;
writel(clk_src, &clk->res9[0]);
writel(clk_div, &clk->div4);
return (s5p_mmc_init(0, 4) || s5p_mmc_init(1, 4));
}
static int exynos5_mmc_config(int peripheral, int flags)
{
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
struct s5p_gpio_bank *bank, *bank_ext;
int i, start = 0, gpio_func = 0;
switch (peripheral) {
case PERIPH_ID_SDMMC0:
bank = &gpio1->c0;
bank_ext = &gpio1->c1;
start = 0;
gpio_func = GPIO_FUNC(0x2);
break;
case PERIPH_ID_SDMMC1:
bank = &gpio1->c2;
bank_ext = NULL;
break;
case PERIPH_ID_SDMMC2:
bank = &gpio1->c3;
bank_ext = &gpio1->c4;
start = 3;
gpio_func = GPIO_FUNC(0x3);
break;
case PERIPH_ID_SDMMC3:
bank = &gpio1->c4;
bank_ext = NULL;
break;
}
if ((flags & PINMUX_FLAG_8BIT_MODE) && !bank_ext) {
debug("SDMMC device %d does not support 8bit mode",
peripheral);
return -1;
}
if (flags & PINMUX_FLAG_8BIT_MODE) {
for (i = start; i <= (start + 3); i++) {
s5p_gpio_cfg_pin(bank_ext, i, gpio_func);
s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_UP);
s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);
}
}
for (i = 0; i < 2; i++) {
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
}
for (i = 3; i <= 6; i++) {
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
s5p_gpio_set_pull(bank, i, GPIO_PULL_UP);
s5p_gpio_set_drv(bank, i, GPIO_DRV_4X);
}
return 0;
}
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);
}
void exynos_cfg_lcd_gpio(void)
{
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
/* For Backlight */
s5p_gpio_cfg_pin(&gpio1->b2, 0, GPIO_OUTPUT);
s5p_gpio_set_value(&gpio1->b2, 0, 1);
/* LCD power on */
s5p_gpio_cfg_pin(&gpio1->x1, 5, GPIO_OUTPUT);
s5p_gpio_set_value(&gpio1->x1, 5, 1);
/* Set Hotplug detect for DP */
s5p_gpio_cfg_pin(&gpio1->x0, 7, GPIO_FUNC(0x3));
}
static void exynos4_uart_config(int peripheral)
{
struct exynos4_gpio_part1 *gpio1 =
(struct exynos4_gpio_part1 *) samsung_get_base_gpio_part1();
struct s5p_gpio_bank *bank;
int i, start, count;
switch (peripheral) {
case PERIPH_ID_UART0:
bank = &gpio1->a0;
start = 0;
count = 4;
break;
case PERIPH_ID_UART1:
bank = &gpio1->a0;
start = 4;
count = 4;
break;
case PERIPH_ID_UART2:
bank = &gpio1->a1;
start = 0;
count = 4;
break;
case PERIPH_ID_UART3:
bank = &gpio1->a1;
start = 4;
count = 2;
break;
}
for (i = start; i < start + count; i++) {
s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE);
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
}
}
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_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 = 0; i < 7; i++) {
/* GPK2[0:6] special function 2 */
s5p_gpio_cfg_pin(&gpio2->k2, i, GPIO_FUNC(0x2));
/* GPK2[0:6] drv 4x */
s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
/* GPK2[0:1] pull disable */
if (i == 0 || i == 1) {
s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
continue;
}
/* GPK2[2:6] pull up */
s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_UP);
}
err = s5p_mmc_init(2, 4);
return err;
}
static void exynos5_i2s_config(int peripheral)
{
int i;
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
for (i = 0; i < 5; i++)
s5p_gpio_cfg_pin(&gpio1->b0, i, GPIO_FUNC(0x02));
}
/* set GPIO pin 'gpio' as an input */
static int exynos_gpio_direction_input(struct udevice *dev, unsigned offset)
{
struct exynos_bank_info *state = dev_get_priv(dev);
/* Configure GPIO direction as input. */
s5p_gpio_cfg_pin(state->bank, offset, S5P_GPIO_INPUT);
return 0;
}
void exynos5_spi_config(int peripheral)
{
int cfg = 0, pin = 0, i;
struct s5p_gpio_bank *bank = NULL;
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
struct exynos5_gpio_part2 *gpio2 =
(struct exynos5_gpio_part2 *) samsung_get_base_gpio_part2();
switch (peripheral) {
case PERIPH_ID_SPI0:
bank = &gpio1->a2;
cfg = GPIO_FUNC(0x2);
pin = 0;
break;
case PERIPH_ID_SPI1:
bank = &gpio1->a2;
cfg = GPIO_FUNC(0x2);
pin = 4;
break;
case PERIPH_ID_SPI2:
bank = &gpio1->b1;
cfg = GPIO_FUNC(0x5);
pin = 1;
break;
case PERIPH_ID_SPI3:
bank = &gpio2->f1;
cfg = GPIO_FUNC(0x2);
pin = 0;
break;
case PERIPH_ID_SPI4:
for (i = 0; i < 2; i++) {
s5p_gpio_cfg_pin(&gpio2->f0, i + 2, GPIO_FUNC(0x4));
s5p_gpio_cfg_pin(&gpio2->e0, i + 4, GPIO_FUNC(0x4));
}
break;
}
if (peripheral != PERIPH_ID_SPI4) {
for (i = pin; i < pin + 4; i++)
s5p_gpio_cfg_pin(bank, i, cfg);
}
}
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 s5p_gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en)
{
unsigned int value;
s5p_gpio_cfg_pin(bank, gpio, EXYNOS_GPIO_OUTPUT);
value = readl(&bank->dat);
value &= ~DAT_MASK(gpio);
if (en)
value |= DAT_SET(gpio);
writel(value, &bank->dat);
}
/* set GPIO pin 'gpio' as an output, with polarity 'value' */
static int exynos_gpio_direction_output(struct udevice *dev, unsigned offset,
int value)
{
struct exynos_bank_info *state = dev_get_priv(dev);
/* Configure GPIO output value. */
s5p_gpio_set_value(state->bank, offset, value);
/* Configure GPIO direction as output. */
s5p_gpio_cfg_pin(state->bank, offset, S5P_GPIO_OUTPUT);
return 0;
}
void exynos_cfg_lcd_gpio(void)
{
unsigned int i, f3_end = 4;
for (i = 0; i < 8; i++) {
/* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
s5p_gpio_cfg_pin(&gpio1->f0, i, GPIO_FUNC(2));
s5p_gpio_cfg_pin(&gpio1->f1, i, GPIO_FUNC(2));
s5p_gpio_cfg_pin(&gpio1->f2, i, GPIO_FUNC(2));
/* pull-up/down disable */
s5p_gpio_set_pull(&gpio1->f0, i, GPIO_PULL_NONE);
s5p_gpio_set_pull(&gpio1->f1, i, GPIO_PULL_NONE);
s5p_gpio_set_pull(&gpio1->f2, i, GPIO_PULL_NONE);
/* drive strength to max (24bit) */
s5p_gpio_set_drv(&gpio1->f0, i, GPIO_DRV_4X);
s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
s5p_gpio_set_drv(&gpio1->f1, i, GPIO_DRV_4X);
s5p_gpio_set_rate(&gpio1->f1, i, GPIO_DRV_SLOW);
s5p_gpio_set_drv(&gpio1->f2, i, GPIO_DRV_4X);
s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
}
for (i = 0; i < f3_end; i++) {
/* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
s5p_gpio_cfg_pin(&gpio1->f3, i, GPIO_FUNC(2));
/* pull-up/down disable */
s5p_gpio_set_pull(&gpio1->f3, i, GPIO_PULL_NONE);
/* drive strength to max (24bit) */
s5p_gpio_set_drv(&gpio1->f3, i, GPIO_DRV_4X);
s5p_gpio_set_rate(&gpio1->f3, i, GPIO_DRV_SLOW);
}
/* gpio pad configuration for LCD reset. */
s5p_gpio_cfg_pin(&gpio2->y4, 5, GPIO_OUTPUT);
spi_init();
}
static void smc9115_pre_init(void)
{
u32 smc_bw_conf, smc_bc_conf;
/* gpio configuration GPK0CON */
s5p_gpio_cfg_pin(&gpio2->y0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
/* Ethernet needs bus width of 16 bits */
smc_bw_conf = SROMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
smc_bc_conf = SROMC_BC_TACS(0x0F) | SROMC_BC_TCOS(0x0F)
| SROMC_BC_TACC(0x0F) | SROMC_BC_TCOH(0x0F)
| SROMC_BC_TAH(0x0F) | SROMC_BC_TACP(0x0F)
| SROMC_BC_PMC(0x0F);
/* Select and configure the SROMC bank */
s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
}
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;
}
static unsigned int get_hw_revision(void)
{
struct exynos4_gpio_part1 *gpio =
(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
int hwrev = 0;
int i;
/* hw_rev[3:0] == GPE1[3:0] */
for (i = 0; i < 4; i++) {
s5p_gpio_cfg_pin(&gpio->e1, i, GPIO_INPUT);
s5p_gpio_set_pull(&gpio->e1, i, GPIO_PULL_NONE);
}
udelay(1);
for (i = 0; i < 4; i++)
hwrev |= (s5p_gpio_get_value(&gpio->e1, i) << i);
debug("hwrev 0x%x\n", hwrev);
return hwrev;
}
void s5p_gpio_direction_input(struct s5p_gpio_bank *bank, int gpio)
{
s5p_gpio_cfg_pin(bank, gpio, EXYNOS_GPIO_INPUT);
}
static void exynos4_i2c_config(int peripheral, int flags)
{
struct exynos4_gpio_part1 *gpio1 =
(struct exynos4_gpio_part1 *) samsung_get_base_gpio_part1();
switch (peripheral) {
case PERIPH_ID_I2C0:
s5p_gpio_cfg_pin(&gpio1->d1, 0, GPIO_FUNC(0x2));
s5p_gpio_cfg_pin(&gpio1->d1, 1, GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C1:
s5p_gpio_cfg_pin(&gpio1->d1, 2, GPIO_FUNC(0x2));
s5p_gpio_cfg_pin(&gpio1->d1, 3, GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C2:
s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C3:
s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C4:
s5p_gpio_cfg_pin(&gpio1->b, 2, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->b, 3, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C5:
s5p_gpio_cfg_pin(&gpio1->b, 6, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->b, 7, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C6:
s5p_gpio_cfg_pin(&gpio1->c1, 3, GPIO_FUNC(0x4));
s5p_gpio_cfg_pin(&gpio1->c1, 4, GPIO_FUNC(0x4));
break;
case PERIPH_ID_I2C7:
s5p_gpio_cfg_pin(&gpio1->d0, 2, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->d0, 3, GPIO_FUNC(0x3));
break;
}
}
static void exynos5_sromc_config(int flags)
{
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
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, (flags & PINMUX_FLAG_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);
}
}
void gpio_cfg_pin(int gpio, int cfg)
{
s5p_gpio_cfg_pin(s5p_gpio_get_bank(gpio),
s5p_gpio_get_pin(gpio), cfg);
}
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;
}
void s5p_gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en)
{
s5p_gpio_cfg_pin(bank, gpio, GPIO_OUTPUT);
s5p_gpio_set_value(bank, gpio, en);
}
