+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
+#include <env.h>
+#include <environment.h>
#include <misc.h>
+#include <spl.h>
+#include <syscon.h>
+#include <usb.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
+#include <asm/io.h>
#include <asm/setup.h>
-#include <asm/arch/periph.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/grf_rk3399.h>
+#include <asm/arch-rockchip/periph.h>
#include <power/regulator.h>
-#include <spl.h>
#include <u-boot/sha256.h>
-DECLARE_GLOBAL_DATA_PTR;
-
-int board_init(void)
-{
- int ret;
-
- /*
- * We need to call into regulators_enable_boot_on() again, as the call
- * during SPL may have not included all regulators.
- */
- ret = regulators_enable_boot_on(false);
- if (ret)
- debug("%s: Cannot enable boot on regulator\n", __func__);
-
- return 0;
-}
-
-void spl_board_init(void)
-{
- int ret;
-
- /*
- * Turning the eMMC and SPI back on (if disabled via the Qseven
- * BIOS_ENABLE) signal is done through a always-on regulator).
- */
- ret = regulators_enable_boot_on(false);
- if (ret)
- debug("%s: Cannot enable boot on regulator\n", __func__);
-
- preloader_console_init();
-}
-
static void setup_macaddr(void)
{
#if CONFIG_IS_ENABLED(CMD_NET)
serialno = crc32_no_comp(0, low, 8);
serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
- snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);
+ snprintf(serialno_str, sizeof(serialno_str), "%016llx", serialno);
env_set("cpuid#", cpuid_str);
env_set("serial#", serialno_str);
#endif
}
+static void setup_iodomain(void)
+{
+ const u32 GRF_IO_VSEL_GPIO4CD_SHIFT = 3;
+ struct rk3399_grf_regs *grf =
+ syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+
+ /*
+ * 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.
+ */
+ rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_GPIO4CD_SHIFT);
+}
+
+/*
+ * 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)
+{
+ const char *boot_device =
+ ofnode_get_chosen_prop("u-boot,spl-boot-device");
+ char *env_default, *env;
+
+ 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);
+
+ 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);
+
+ if (strcmp(env_default, env) != 0) {
+ debug("%s: boot_targets not default, don't change it\n",
+ __func__);
+ return 0;
+ }
+
+ /*
+ * 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.
+ */
+ 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);
+ }
+ }
+
+ return 0;
+}
+
int misc_init_r(void)
{
setup_serial();
setup_macaddr();
+ setup_iodomain();
+ setup_boottargets();
return 0;
}
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);
+}
projects / oweals / u-boot.git / blobdiff