diff options
Diffstat (limited to 'board/st/stm32mp1/stm32mp1.c')
| -rw-r--r-- | board/st/stm32mp1/stm32mp1.c | 206 |
1 files changed, 180 insertions, 26 deletions
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 279c7b7797..18f9b84876 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -5,8 +5,8 @@ #include <common.h> #include <adc.h> #include <bootm.h> -#include <config.h> #include <clk.h> +#include <config.h> #include <dm.h> #include <env.h> #include <env_internal.h> @@ -17,10 +17,13 @@ #include <misc.h> #include <mtd.h> #include <mtd_node.h> +#include <netdev.h> #include <phy.h> +#include <remoteproc.h> #include <reset.h> #include <syscon.h> #include <usb.h> +#include <watchdog.h> #include <asm/io.h> #include <asm/gpio.h> #include <asm/arch/stm32.h> @@ -102,7 +105,7 @@ int checkboard(void) if (!ret) ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD), &otp, sizeof(otp)); - if (!ret && otp) { + if (ret > 0 && otp) { printf("Board: MB%04x Var%d Rev.%c-%02d\n", otp >> 16, (otp >> 12) & 0xF, @@ -232,6 +235,7 @@ int g_dnl_board_usb_cable_connected(void) } #endif /* CONFIG_USB_GADGET */ +#ifdef CONFIG_LED static int get_led(struct udevice **dev, char *led_string) { char *led_name; @@ -264,12 +268,42 @@ static int setup_led(enum led_state_t cmd) ret = led_set_state(dev, cmd); return ret; } +#endif + +static void __maybe_unused led_error_blink(u32 nb_blink) +{ +#ifdef CONFIG_LED + int ret; + struct udevice *led; + u32 i; +#endif + + if (!nb_blink) + return; + +#ifdef CONFIG_LED + ret = get_led(&led, "u-boot,error-led"); + if (!ret) { + /* make u-boot,error-led blinking */ + /* if U32_MAX and 125ms interval, for 17.02 years */ + for (i = 0; i < 2 * nb_blink; i++) { + led_set_state(led, LEDST_TOGGLE); + mdelay(125); + WATCHDOG_RESET(); + } + } +#endif + + /* infinite: the boot process must be stopped */ + if (nb_blink == U32_MAX) + hang(); +} +#ifdef CONFIG_ADC static int board_check_usb_power(void) { struct ofnode_phandle_args adc_args; struct udevice *adc; - struct udevice *led; ofnode node; unsigned int raw; int max_uV = 0; @@ -395,23 +429,11 @@ static int board_check_usb_power(void) pr_err("****************************************************\n\n"); } - ret = get_led(&led, "u-boot,error-led"); - if (ret) { - /* in unattached case, the boot process must be stopped */ - if (nb_blink == U32_MAX) - hang(); - return ret; - } - - /* make u-boot,error-led blinking */ - for (i = 0; i < nb_blink * 2; i++) { - led_set_state(led, LEDST_TOGGLE); - mdelay(125); - } - led_set_state(led, LEDST_ON); + led_error_blink(nb_blink); return 0; } +#endif /* CONFIG_ADC */ static void sysconf_init(void) { @@ -454,7 +476,9 @@ static void sysconf_init(void) * => U-Boot set the register only if VDD < 2.7V (in DT) * but this value need to be consistent with board design */ - ret = syscon_get_by_driver_data(STM32MP_SYSCON_PWR, &pwr_dev); + ret = uclass_get_device_by_driver(UCLASS_PMIC, + DM_GET_DRIVER(stm32mp_pwr_pmic), + &pwr_dev); if (!ret) { ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(stm32mp_bsec), @@ -465,11 +489,11 @@ static void sysconf_init(void) } ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4); - if (!ret) + if (ret > 0) otp = otp & BIT(13); - /* get VDD = pwr-supply */ - ret = device_get_supply_regulator(pwr_dev, "pwr-supply", + /* get VDD = vdd-supply */ + ret = device_get_supply_regulator(pwr_dev, "vdd-supply", &pwr_reg); /* check if VDD is Low Voltage */ @@ -505,6 +529,73 @@ static void sysconf_init(void) #endif } +#ifdef CONFIG_DM_REGULATOR +/* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */ +static int dk2_i2c1_fix(void) +{ + ofnode node; + struct gpio_desc hdmi, audio; + int ret = 0; + + node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39"); + if (!ofnode_valid(node)) { + pr_debug("%s: no hdmi-transmitter@39 ?\n", __func__); + return -ENOENT; + } + + if (gpio_request_by_name_nodev(node, "reset-gpios", 0, + &hdmi, GPIOD_IS_OUT)) { + pr_debug("%s: could not find reset-gpios\n", + __func__); + return -ENOENT; + } + + node = ofnode_path("/soc/i2c@40012000/cs42l51@4a"); + if (!ofnode_valid(node)) { + pr_debug("%s: no cs42l51@4a ?\n", __func__); + return -ENOENT; + } + + if (gpio_request_by_name_nodev(node, "reset-gpios", 0, + &audio, GPIOD_IS_OUT)) { + pr_debug("%s: could not find reset-gpios\n", + __func__); + return -ENOENT; + } + + /* before power up, insure that HDMI and AUDIO IC is under reset */ + ret = dm_gpio_set_value(&hdmi, 1); + if (ret) { + pr_err("%s: can't set_value for hdmi_nrst gpio", __func__); + goto error; + } + ret = dm_gpio_set_value(&audio, 1); + if (ret) { + pr_err("%s: can't set_value for audio_nrst gpio", __func__); + goto error; + } + + /* power-up audio IC */ + regulator_autoset_by_name("v1v8_audio", NULL); + + /* power-up HDMI IC */ + regulator_autoset_by_name("v1v2_hdmi", NULL); + regulator_autoset_by_name("v3v3_hdmi", NULL); + +error: + return ret; +} + +static bool board_is_dk2(void) +{ + if (CONFIG_IS_ENABLED(TARGET_STM32MP157C_DK2) && + of_machine_is_compatible("st,stm32mp157c-dk2")) + return true; + + return false; +} +#endif + /* board dependent setup after realloc */ int board_init(void) { @@ -523,12 +614,15 @@ int board_init(void) board_key_check(); #ifdef CONFIG_DM_REGULATOR + if (board_is_dk2()) + dk2_i2c1_fix(); + regulators_enable_boot_on(_DEBUG); #endif sysconf_init(); - if (IS_ENABLED(CONFIG_LED)) + if (CONFIG_IS_ENABLED(CONFIG_LED)) led_default_state(); return 0; @@ -536,9 +630,14 @@ int board_init(void) int board_late_init(void) { + char *boot_device; #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG const void *fdt_compat; int fdt_compat_len; + int ret; + u32 otp; + struct udevice *dev; + char buf[10]; fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible", &fdt_compat_len); @@ -548,26 +647,58 @@ int board_late_init(void) else env_set("board_name", fdt_compat + 3); } + ret = uclass_get_device_by_driver(UCLASS_MISC, + DM_GET_DRIVER(stm32mp_bsec), + &dev); + + if (!ret) + ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD), + &otp, sizeof(otp)); + if (!ret && otp) { + snprintf(buf, sizeof(buf), "0x%04x", otp >> 16); + env_set("board_id", buf); + + snprintf(buf, sizeof(buf), "0x%04x", + ((otp >> 8) & 0xF) - 1 + 0xA); + env_set("board_rev", buf); + } #endif +#ifdef CONFIG_ADC /* for DK1/DK2 boards */ board_check_usb_power(); +#endif /* CONFIG_ADC */ + + /* Check the boot-source to disable bootdelay */ + boot_device = env_get("boot_device"); + if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb")) + env_set("bootdelay", "0"); return 0; } void board_quiesce_devices(void) { +#ifdef CONFIG_LED setup_led(LEDST_OFF); +#endif } -/* board interface eth init */ -/* this is a weak define that we are overriding */ -int board_interface_eth_init(phy_interface_t interface_type, - bool eth_clk_sel_reg, bool eth_ref_clk_sel_reg) +/* eth init function : weak called in eqos driver */ +int board_interface_eth_init(struct udevice *dev, + phy_interface_t interface_type) { u8 *syscfg; u32 value; + bool eth_clk_sel_reg = false; + bool eth_ref_clk_sel_reg = false; + + /* Gigabit Ethernet 125MHz clock selection. */ + eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel"); + + /* Ethernet 50Mhz RMII clock selection */ + eth_ref_clk_sel_reg = + dev_read_bool(dev, "st,eth_ref_clk_sel"); syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG); @@ -771,3 +902,26 @@ int ft_board_setup(void *blob, bd_t *bd) return 0; } #endif + +static void board_copro_image_process(ulong fw_image, size_t fw_size) +{ + int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */ + + if (!rproc_is_initialized()) + if (rproc_init()) { + printf("Remote Processor %d initialization failed\n", + id); + return; + } + + ret = rproc_load(id, fw_image, fw_size); + printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n", + id, fw_image, fw_size, ret ? " Failed!" : " Success!"); + + if (!ret) { + rproc_start(id); + env_set("copro_state", "booted"); + } +} + +U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process); |