*
* SPDX-License-Identifier: GPL-2.0+
*/
+
#include <common.h>
#include <dm.h>
#include <misc.h>
-#include <ram.h>
+#include <spl.h>
+#include <usb.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
+#include <asm/gpio.h>
+#include <asm/setup.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3399.h>
#include <asm/arch/periph.h>
#include <power/regulator.h>
#include <u-boot/sha256.h>
DECLARE_GLOBAL_DATA_PTR;
-#define RK3399_CPUID_OFF 0x7
-#define RK3399_CPUID_LEN 0x10
-
-DECLARE_GLOBAL_DATA_PTR;
-
int board_init(void)
{
- struct udevice *pinctrl, *regulator;
int ret;
/*
- * 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.
+ * We need to call into regulators_enable_boot_on() again, as the call
+ * during SPL may have not included all regulators.
*/
- ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
- if (ret) {
- debug("%s: Cannot find pinctrl device\n", __func__);
- goto out;
+ ret = regulators_enable_boot_on(false);
+ if (ret)
+ debug("%s: Cannot enable boot on regulator\n", __func__);
+
+ return 0;
+}
+
+static void rk3399_force_power_on_reset(void)
+{
+ ofnode node;
+ struct gpio_desc sysreset_gpio;
+
+ debug("%s: trying to force a power-on reset\n", __func__);
+
+ node = ofnode_path("/config");
+ if (!ofnode_valid(node)) {
+ debug("%s: no /config node?\n", __func__);
+ return;
}
- ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
- if (ret) {
- debug("%s PWM2 pinctrl init fail!\n", __func__);
- goto out;
+ if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0,
+ &sysreset_gpio, GPIOD_IS_OUT)) {
+ debug("%s: could not find a /config/sysreset-gpio\n", __func__);
+ return;
}
- /* rk3399 need to init vdd_center to get the correct output voltage */
- ret = regulator_get_by_platname("vdd_center", ®ulator);
+ dm_gpio_set_value(&sysreset_gpio, 1);
+}
+
+void spl_board_init(void)
+{
+ int ret;
+ struct rk3399_cru *cru = rockchip_get_cru();
+
+ /*
+ * The RK3399 resets only 'almost all logic' (see also in the TRM
+ * "3.9.4 Global software reset"), when issuing a software reset.
+ * This may cause issues during boot-up for some configurations of
+ * the application software stack.
+ *
+ * To work around this, we test whether the last reset reason was
+ * a power-on reset and (if not) issue an overtemp-reset to reset
+ * the entire module.
+ *
+ * While this was previously fixed by modifying the various places
+ * that could generate a software reset (e.g. U-Boot's sysreset
+ * driver, the ATF or Linux), we now have it here to ensure that
+ * we no longer have to track this through the various components.
+ */
+ if (cru->glb_rst_st != 0)
+ rk3399_force_power_on_reset();
+
+ /*
+ * 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 get vdd_center regulator\n", __func__);
+ debug("%s: Cannot enable boot on regulator\n", __func__);
+
+ preloader_console_init();
+}
+
+static void setup_macaddr(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;
+
+ 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;
+ }
+
+ /* Copy 6 bytes of the hash to base the MAC address on */
+ memcpy(mac_addr, hash, 6);
- ret = regulator_get_by_platname("vcc5v0_host", ®ulator);
+ /* 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 vcc5v0_host init fail! ret %d\n", __func__, ret);
- goto out;
+ debug("%s: could not find efuse device\n", __func__);
+ return;
}
- ret = regulator_set_enable(regulator, true);
+ /* read the cpu_id range from the efuses */
+ ret = misc_read(dev, cpuid_offset, &cpuid, sizeof(cpuid));
if (ret) {
- debug("%s vcc5v0-host-en set fail!\n", __func__);
- goto out;
+ debug("%s: reading cpuid from the efuses failed\n",
+ __func__);
+ return;
+ }
+
+ 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
+ */
+ for (i = 0; i < 8; i++) {
+ low[i] = cpuid[1 + (i << 1)];
+ high[i] = cpuid[i << 1];
}
-out:
+ 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
+}
+
+int misc_init_r(void)
+{
+ setup_serial();
+ setup_macaddr();
+
return 0;
}
-int dram_init(void)
+#ifdef CONFIG_SERIAL_TAG
+void get_board_serial(struct tag_serialnr *serialnr)
{
- struct ram_info ram;
- struct udevice *dev;
+ char *serial_string;
+ u64 serial = 0;
+
+ serial_string = env_get("serial#");
+
+ if (serial_string)
+ serial = simple_strtoull(serial_string, NULL, 16);
+
+ serialnr->high = (u32)(serial >> 32);
+ 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;
- ret = uclass_get_device(UCLASS_RAM, 0, &dev);
- if (ret) {
- debug("DRAM init failed: %d\n", 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 = ram_get_info(dev, &ram);
+
+ ret = regulator_get_by_platname(regname, ®ulator);
if (ret) {
- debug("Cannot get DRAM size: %d\n", ret);
+ debug("%s: ctrl '%s' port %d: could not get regulator '%s'\n",
+ __func__, dev_read_name(dev), port, regname);
return ret;
}
- debug("SDRAM base=%llx, size=%x\n", ram.base, (unsigned int)ram.size);
- gd->ram_size = ram.size;
+ regulator_set_enable(regulator, enable);
return 0;
+#else
+ return -ENOTSUPP;
+#endif
}
-int dram_init_banksize(void)
+void usb_hub_reset_devices(struct usb_hub_device *hub, int port)
{
- /* Reserve 0x200000 for ATF bl31 */
- gd->bd->bi_dram[0].start = 0x200000;
- gd->bd->bi_dram[0].size = 0x7e000000;
+ struct udevice *dev = hub->pusb_dev->dev;
+ struct udevice *ctrl;
- return 0;
+ /* 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