X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=board%2Ftheobroma-systems%2Fpuma_rk3399%2Fpuma-rk3399.c;h=9887d2020717af06043d226d50d88d5cb73e70c3;hb=3db7110857524cf1b7d0a374c1ebcde8a2680de0;hp=e55a5c6657e97e6346f89e6a0a5c643b8bbd5cbe;hpb=fb7406469c012092d652741f103b0993103cf8e3;p=platform%2Fkernel%2Fu-boot.git diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index e55a5c6..9887d20 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -1,162 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH - * - * SPDX-License-Identifier: GPL-2.0+ */ #include #include +#include #include +#include +#include +#include +#include #include #include +#include #include -#include +#include +#include +#include +#include +#include #include -#include #include -DECLARE_GLOBAL_DATA_PTR; - -int board_init(void) +static void setup_iodomain(void) { - struct udevice *pinctrl, *regulator; - int ret; + const u32 GRF_IO_VSEL_GPIO4CD_SHIFT = 3; + struct rk3399_grf_regs *grf = + syscon_get_first_range(ROCKCHIP_SYSCON_GRF); /* - * The PWM does not have decicated interrupt number in dts and can - * not get periph_id by pinctrl framework, so let's init them here. - * The PWM2 and PWM3 are for pwm regulators. + * Set bit 3 in GRF_IO_VSEL so PCIE_RST# works (pin GPIO4_C6). + * Linux assumes that PCIE_RST# works out of the box as it probes + * PCIe before loading the iodomain driver. */ - ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); - if (ret) { - debug("%s: Cannot find pinctrl device\n", __func__); - goto out; - } - - ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2); - if (ret) { - debug("%s PWM2 pinctrl init fail!\n", __func__); - goto out; - } - - /* rk3399 need to init vdd_center to get the correct output voltage */ - ret = regulator_get_by_platname("vdd_center", ®ulator); - if (ret) - debug("%s: Cannot get vdd_center regulator\n", __func__); - - ret = regulator_get_by_platname("vcc5v0_host", ®ulator); - if (ret) { - debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret); - goto out; - } - - ret = regulator_set_enable(regulator, true); - if (ret) { - debug("%s vcc5v0-host-en set fail!\n", __func__); - goto out; - } - -out: - return 0; + rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_GPIO4CD_SHIFT); } -void spl_board_init(void) -{ - preloader_console_init(); -} - -static void setup_macaddr(void) +/* + * Swap mmc0 and mmc1 in boot_targets if booted from SD-Card. + * + * If bootsource is uSD-card we can assume that we want to use the + * SD-Card instead of the eMMC as first boot_target for distroboot. + * We only want to swap the defaults and not any custom environment a + * user has set. We exit early if a changed boot_targets environment + * is detected. + */ +static int setup_boottargets(void) { -#if CONFIG_IS_ENABLED(CMD_NET) - int ret; - const char *cpuid = env_get("cpuid#"); - u8 hash[SHA256_SUM_LEN]; - int size = sizeof(hash); - u8 mac_addr[6]; - - /* Only generate a MAC address, if none is set in the environment */ - if (env_get("ethaddr")) - return; + const char *boot_device = + ofnode_get_chosen_prop("u-boot,spl-boot-device"); + char *env_default, *env; - if (!cpuid) { - debug("%s: could not retrieve 'cpuid#'\n", __func__); - return; - } - - ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size); - if (ret) { - debug("%s: failed to calculate SHA256\n", __func__); - return; + if (!boot_device) { + debug("%s: /chosen/u-boot,spl-boot-device not set\n", + __func__); + return -1; } + debug("%s: booted from %s\n", __func__, boot_device); - /* Copy 6 bytes of the hash to base the MAC address on */ - memcpy(mac_addr, hash, 6); - - /* Make this a valid MAC address and set it */ - mac_addr[0] &= 0xfe; /* clear multicast bit */ - mac_addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ - eth_env_set_enetaddr("ethaddr", mac_addr); -#endif -} - -static void setup_serial(void) -{ -#if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE) - const u32 cpuid_offset = 0x7; - const u32 cpuid_length = 0x10; - - struct udevice *dev; - int ret, i; - u8 cpuid[cpuid_length]; - u8 low[cpuid_length/2], high[cpuid_length/2]; - char cpuid_str[cpuid_length * 2 + 1]; - u64 serialno; - char serialno_str[17]; - - /* retrieve the device */ - ret = uclass_get_device_by_driver(UCLASS_MISC, - DM_GET_DRIVER(rockchip_efuse), &dev); - if (ret) { - debug("%s: could not find efuse device\n", __func__); - return; + env_default = env_get_default("boot_targets"); + env = env_get("boot_targets"); + if (!env) { + debug("%s: boot_targets does not exist\n", __func__); + return -1; } + debug("%s: boot_targets current: %s - default: %s\n", + __func__, env, env_default); - /* read the cpu_id range from the efuses */ - ret = misc_read(dev, cpuid_offset, &cpuid, sizeof(cpuid)); - if (ret) { - debug("%s: reading cpuid from the efuses failed\n", + if (strcmp(env_default, env) != 0) { + debug("%s: boot_targets not default, don't change it\n", __func__); - return; + return 0; } - memset(cpuid_str, 0, sizeof(cpuid_str)); - for (i = 0; i < 16; i++) - sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]); - - debug("cpuid: %s\n", cpuid_str); - /* - * Mix the cpuid bytes using the same rules as in - * ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c + * Only run, if booting from mmc1 (i.e. /dwmmc@fe320000) and + * only consider cases where the default boot-order first + * tries to boot from mmc0 (eMMC) and then from mmc1 + * (i.e. external SD). + * + * In other words: the SD card will be moved to earlier in the + * order, if U-Boot was also loaded from the SD-card. */ - for (i = 0; i < 8; i++) { - low[i] = cpuid[1 + (i << 1)]; - high[i] = cpuid[i << 1]; + if (!strcmp(boot_device, "/dwmmc@fe320000")) { + char *mmc0, *mmc1; + + debug("%s: booted from SD-Card\n", __func__); + mmc0 = strstr(env, "mmc0"); + mmc1 = strstr(env, "mmc1"); + + if (!mmc0 || !mmc1) { + debug("%s: only one mmc boot_target found\n", __func__); + return -1; + } + + /* + * If mmc0 comes first in the boot order, we need to change + * the strings to make mmc1 first. + */ + if (mmc0 < mmc1) { + mmc0[3] = '1'; + mmc1[3] = '0'; + debug("%s: set boot_targets to: %s\n", __func__, env); + env_set("boot_targets", env); + } } - serialno = crc32_no_comp(0, low, 8); - serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32; - snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno); - - env_set("cpuid#", cpuid_str); - env_set("serial#", serialno_str); -#endif + return 0; } int misc_init_r(void) { - setup_serial(); - setup_macaddr(); + const u32 cpuid_offset = 0x7; + const u32 cpuid_length = 0x10; + u8 cpuid[cpuid_length]; + int ret; + + ret = rockchip_cpuid_from_efuse(cpuid_offset, cpuid_length, cpuid); + if (ret) + return ret; + + ret = rockchip_cpuid_set(cpuid, cpuid_length); + if (ret) + return ret; + + ret = rockchip_setup_macaddr(); + if (ret) + return ret; + + setup_iodomain(); + setup_boottargets(); return 0; } @@ -176,3 +150,70 @@ void get_board_serial(struct tag_serialnr *serialnr) serialnr->low = (u32)(serial & 0xffffffff); } #endif + +/** + * Switch power at an external regulator (for our root hub). + * + * @param ctrl pointer to the xHCI controller + * @param port port number as in the control message (one-based) + * @param enable boolean indicating whether to enable or disable power + * @return returns 0 on success, an error-code on failure + */ +static int board_usb_port_power_set(struct udevice *dev, int port, + bool enable) +{ +#if CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(DM_REGULATOR) + /* We start counting ports at 0, while USB counts from 1. */ + int index = port - 1; + const char *regname = NULL; + struct udevice *regulator; + const char *prop = "tsd,usb-port-power"; + int ret; + + debug("%s: ctrl '%s' port %d enable %s\n", __func__, + dev_read_name(dev), port, enable ? "true" : "false"); + + ret = dev_read_string_index(dev, prop, index, ®name); + if (ret < 0) { + debug("%s: ctrl '%s' port %d: no entry in '%s'\n", + __func__, dev_read_name(dev), port, prop); + return ret; + } + + ret = regulator_get_by_platname(regname, ®ulator); + if (ret) { + debug("%s: ctrl '%s' port %d: could not get regulator '%s'\n", + __func__, dev_read_name(dev), port, regname); + return ret; + } + + regulator_set_enable(regulator, enable); + return 0; +#else + return -ENOTSUPP; +#endif +} + +void usb_hub_reset_devices(struct usb_hub_device *hub, int port) +{ + struct udevice *dev = hub->pusb_dev->dev; + struct udevice *ctrl; + + /* We are only interested in our root-hubs */ + if (usb_hub_is_root_hub(dev) == false) + return; + + ctrl = usb_get_bus(dev); + if (!ctrl) { + debug("%s: could not retrieve ctrl for hub\n", __func__); + return; + } + + /* + * To work around an incompatibility between the single-threaded + * USB stack in U-Boot and (a strange low-power mode of) the USB + * hub we have on-module, we need to delay powering on the hub + * until the first time the port is probed. + */ + board_usb_port_power_set(ctrl, port, true); +}