*/
#include <common.h>
-#include <cros_ec.h>
#include <fdtdec.h>
#include <asm/io.h>
#include <errno.h>
#include <i2c.h>
#include <netdev.h>
#include <spi.h>
+#include <asm/gpio.h>
#include <asm/arch/cpu.h>
#include <asm/arch/dwmmc.h>
-#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/power.h>
#include <asm/arch/sromc.h>
#include <power/pmic.h>
#include <power/max77686_pmic.h>
+#include <power/tps65090_pmic.h>
#include <tmu.h>
DECLARE_GLOBAL_DATA_PTR;
-#if defined CONFIG_EXYNOS_TMU
-/*
- * Boot Time Thermal Analysis for SoC temperature threshold breach
- */
-static void boot_temp_check(void)
-{
- int temp;
-
- switch (tmu_monitor(&temp)) {
- /* Status TRIPPED ans WARNING means corresponding threshold breach */
- case TMU_STATUS_TRIPPED:
- puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
- set_ps_hold_ctrl();
- hang();
- break;
- case TMU_STATUS_WARNING:
- puts("EXYNOS_TMU: WARNING! Temperature very high\n");
- break;
- /*
- * TMU_STATUS_INIT means something is wrong with temperature sensing
- * and TMU status was changed back from NORMAL to INIT.
- */
- case TMU_STATUS_INIT:
- default:
- debug("EXYNOS_TMU: Unknown TMU state\n");
- }
-}
-#endif
-
-struct local_info {
- struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
- int cros_ec_err; /* Error for cros_ec, 0 if ok */
-};
-
-static struct local_info local;
-
#ifdef CONFIG_SOUND_MAX98095
-static void board_enable_audio_codec(void)
+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);
+ gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
+ gpio_direction_output(EXYNOS5_GPIO_X17, 1);
+ gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
}
#endif
-struct cros_ec_dev *board_get_cros_ec_dev(void)
-{
- return local.cros_ec_dev;
-}
-
-static int board_init_cros_ec_devices(const void *blob)
+int exynos_init(void)
{
- local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
- if (local.cros_ec_err)
- return -1; /* Will report in board_late_init() */
-
- return 0;
-}
-
-int board_init(void)
-{
- gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
-
-#if defined CONFIG_EXYNOS_TMU
- if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
- debug("%s: Failed to init TMU\n", __func__);
- return -1;
- }
- boot_temp_check();
-#endif
-
-#ifdef CONFIG_EXYNOS_SPI
- spi_init();
-#endif
-
- if (board_init_cros_ec_devices(gd->fdt_blob))
- return -1;
-
#ifdef CONFIG_SOUND_MAX98095
board_enable_audio_codec();
#endif
return 0;
}
-int dram_init(void)
-{
- int i;
- u32 addr;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
- gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
- }
- return 0;
-}
-
#if defined(CONFIG_POWER)
+#ifdef CONFIG_POWER_MAX77686
static int pmic_reg_update(struct pmic *p, int reg, uint regval)
{
u32 val;
return 0;
}
-int power_init_board(void)
+static int max77686_init(void)
{
struct pmic *p;
- set_ps_hold_ctrl();
-
- i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-
if (pmic_init(I2C_PMIC))
return -1;
return 0;
}
-#endif
-
-void dram_init_banksize(void)
-{
- int i;
- u32 addr, size;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
- size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
-
- gd->bd->bi_dram[i].start = addr;
- gd->bd->bi_dram[i].size = size;
- }
-}
+#endif /* CONFIG_POWER_MAX77686 */
-static int decode_sromc(const void *blob, struct fdt_sromc *config)
+int exynos_power_init(void)
{
- int err;
- int node;
-
- node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
- if (node < 0) {
- debug("Could not find SROMC node\n");
- return node;
- }
+ int ret = 0;
- config->bank = fdtdec_get_int(blob, node, "bank", 0);
- config->width = fdtdec_get_int(blob, node, "width", 2);
+#ifdef CONFIG_POWER_MAX77686
+ ret = max77686_init();
+ if (ret)
+ return ret;
+#endif
+#ifdef CONFIG_POWER_TPS65090
+ /*
+ * The TPS65090 may not be in the device tree. If so, it is not
+ * an error.
+ */
+ ret = tps65090_init();
+ if (ret == 0 || ret == -ENODEV)
+ return 0;
+#endif
- err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
- FDT_SROM_TIMING_COUNT);
- if (err < 0) {
- debug("Could not decode SROMC configuration Error: %s\n",
- fdt_strerror(err));
- return -FDT_ERR_NOTFOUND;
- }
- return 0;
+ return ret;
}
+#endif /* CONFIG_POWER */
-int board_eth_init(bd_t *bis)
+#ifdef CONFIG_LCD
+static int board_dp_bridge_setup(void)
{
-#ifdef CONFIG_SMC911X
- u32 smc_bw_conf, smc_bc_conf;
- struct fdt_sromc config;
- fdt_addr_t base_addr;
- int node;
+ const int max_tries = 10;
+ int num_tries, node;
- node = decode_sromc(gd->fdt_blob, &config);
- if (node < 0) {
- debug("%s: Could not find sromc configuration\n", __func__);
- return 0;
- }
- node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
+ /*
+ * TODO(sjg): Use device tree for GPIOs when exynos GPIO
+ * numbering patch is in mainline.
+ */
+ debug("%s\n", __func__);
+ node = fdtdec_next_compatible(gd->fdt_blob, 0, COMPAT_NXP_PTN3460);
if (node < 0) {
- debug("%s: Could not find lan9215 configuration\n", __func__);
- return 0;
+ debug("%s: No node for DP bridge in device tree\n", __func__);
+ return -ENODEV;
}
- /* We now have a node, so any problems from now on are errors */
- base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
- if (base_addr == FDT_ADDR_T_NONE) {
- debug("%s: Could not find lan9215 address\n", __func__);
- return -1;
- }
+ /* Setup the GPIOs */
- /* Ethernet needs data bus width of 16 bits */
- if (config.width != 2) {
- debug("%s: Unsupported bus width %d\n", __func__,
- config.width);
- return -1;
- }
- smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
- | SROMC_BYTE_ENABLE(config.bank);
-
- smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS]) |
- SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
- SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
- SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
- SROMC_BC_TAH(config.timing[FDT_SROM_TAH]) |
- SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
- SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
-
- /* Select and configure the SROMC bank */
- exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
- s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
- return smc911x_initialize(0, base_addr);
-#endif
- return 0;
-}
+ /* PD is ACTIVE_LOW, and initially de-asserted */
+ gpio_request(EXYNOS5_GPIO_Y25, "dp_bridge_pd");
+ gpio_set_pull(EXYNOS5_GPIO_Y25, S5P_GPIO_PULL_NONE);
+ gpio_direction_output(EXYNOS5_GPIO_Y25, 1);
-#ifdef CONFIG_DISPLAY_BOARDINFO
-int checkboard(void)
-{
- const char *board_name;
+ /* Reset is ACTIVE_LOW */
+ gpio_request(EXYNOS5_GPIO_X15, "dp_bridge_reset");
+ gpio_set_pull(EXYNOS5_GPIO_X15, S5P_GPIO_PULL_NONE);
+ gpio_direction_output(EXYNOS5_GPIO_X15, 0);
- board_name = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
- if (board_name == NULL)
- printf("\nUnknown Board\n");
- else
- printf("\nBoard: %s\n", board_name);
+ udelay(10);
+ gpio_set_value(EXYNOS5_GPIO_X15, 1);
- return 0;
-}
-#endif
+ gpio_request(EXYNOS5_GPIO_X07, "dp_bridge_hpd");
+ gpio_direction_input(EXYNOS5_GPIO_X07);
-#ifdef CONFIG_GENERIC_MMC
-int board_mmc_init(bd_t *bis)
-{
- int ret;
- /* dwmmc initializattion for available channels */
- ret = exynos_dwmmc_init(gd->fdt_blob);
- if (ret)
- debug("dwmmc init failed\n");
+ /*
+ * We need to wait for 90ms after bringing up the bridge since there
+ * is a phantom "high" on the HPD chip during its bootup. The phantom
+ * high comes within 7ms of de-asserting PD and persists for at least
+ * 15ms. The real high comes roughly 50ms after PD is de-asserted. The
+ * phantom high makes it hard for us to know when the NXP chip is up.
+ */
+ mdelay(90);
- return ret;
-}
-#endif
+ for (num_tries = 0; num_tries < max_tries; num_tries++) {
+ /* Check HPD. If it's high, we're all good. */
+ if (gpio_get_value(EXYNOS5_GPIO_X07))
+ return 0;
-static int board_uart_init(void)
-{
- int err, uart_id, ret = 0;
-
- for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
- err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
- if (err) {
- debug("UART%d not configured\n",
- (uart_id - PERIPH_ID_UART0));
- ret |= err;
- }
+ debug("%s: eDP bridge failed to come up; try %d of %d\n",
+ __func__, num_tries, max_tries);
}
- return ret;
-}
-#ifdef CONFIG_BOARD_EARLY_INIT_F
-int board_early_init_f(void)
-{
- int err;
- err = board_uart_init();
- if (err) {
- debug("UART init failed\n");
- return err;
- }
-#ifdef CONFIG_SYS_I2C_INIT_BOARD
- board_i2c_init(gd->fdt_blob);
-#endif
- return err;
+ /* Immediately go into bridge reset if the hp line is not high */
+ return -ENODEV;
}
-#endif
-#ifdef CONFIG_LCD
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);
+ gpio_request(EXYNOS5_GPIO_B20, "lcd_backlight");
+ gpio_cfg_pin(EXYNOS5_GPIO_B20, S5P_GPIO_OUTPUT);
+ gpio_set_value(EXYNOS5_GPIO_B20, 1);
/* LCD power on */
- s5p_gpio_cfg_pin(&gpio1->x1, 5, GPIO_OUTPUT);
- s5p_gpio_set_value(&gpio1->x1, 5, 1);
+ gpio_request(EXYNOS5_GPIO_X15, "lcd_power");
+ gpio_cfg_pin(EXYNOS5_GPIO_X15, S5P_GPIO_OUTPUT);
+ gpio_set_value(EXYNOS5_GPIO_X15, 1);
/* Set Hotplug detect for DP */
- s5p_gpio_cfg_pin(&gpio1->x0, 7, GPIO_FUNC(0x3));
+ gpio_cfg_pin(EXYNOS5_GPIO_X07, S5P_GPIO_FUNC(0x3));
}
void exynos_set_dp_phy(unsigned int onoff)
{
set_dp_phy_ctrl(onoff);
}
+
+void exynos_backlight_on(unsigned int on)
+{
+ debug("%s(%u)\n", __func__, on);
+
+ if (!on)
+ return;
+
+#ifdef CONFIG_POWER_TPS65090
+ int ret;
+
+ ret = tps65090_fet_enable(1); /* Enable FET1, backlight */
+ if (ret)
+ return;
+
+ /* T5 in the LCD timing spec (defined as > 10ms) */
+ mdelay(10);
+
+ /* board_dp_backlight_pwm */
+ gpio_direction_output(EXYNOS5_GPIO_B20, 1);
+
+ /* T6 in the LCD timing spec (defined as > 10ms) */
+ mdelay(10);
+
+ /* board_dp_backlight_en */
+ gpio_request(EXYNOS5_GPIO_X30, "board_dp_backlight_en");
+ gpio_direction_output(EXYNOS5_GPIO_X30, 1);
#endif
+}
-#ifdef CONFIG_BOARD_LATE_INIT
-int board_late_init(void)
+void exynos_lcd_power_on(void)
{
- stdio_print_current_devices();
+ int ret;
- if (local.cros_ec_err) {
- /* Force console on */
- gd->flags &= ~GD_FLG_SILENT;
+ debug("%s\n", __func__);
- printf("cros-ec communications failure %d\n",
- local.cros_ec_err);
- puts("\nPlease reset with Power+Refresh\n\n");
- panic("Cannot init cros-ec device");
- return -1;
- }
- return 0;
+#ifdef CONFIG_POWER_TPS65090
+ /* board_dp_lcd_vdd */
+ tps65090_fet_enable(6); /* Enable FET6, lcd panel */
+#endif
+
+ ret = board_dp_bridge_setup();
+ if (ret && ret != -ENODEV)
+ printf("LCD bridge failed to enable: %d\n", ret);
}
+
#endif
projects / karo-tx-uboot.git / blobdiff