+// 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 <environment.h>
+#include <env.h>
#include <misc.h>
#include <spl.h>
#include <syscon.h>
+#include <u-boot/crc.h>
#include <usb.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
#include <asm/io.h>
-#include <asm/gpio.h>
#include <asm/setup.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/cru_rk3399.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/grf_rk3399.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 <asm/arch-rockchip/misc.h>
#include <power/regulator.h>
#include <u-boot/sha256.h>
-DECLARE_GLOBAL_DATA_PTR;
-
-int board_init(void)
+static void setup_iodomain(void)
{
- int ret;
+ const u32 GRF_IO_VSEL_GPIO4CD_SHIFT = 3;
+ struct rk3399_grf_regs *grf =
+ syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
/*
- * We need to call into regulators_enable_boot_on() again, as the call
- * during SPL may have not included all 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 = regulators_enable_boot_on(false);
- if (ret)
- debug("%s: Cannot enable boot on regulator\n", __func__);
-
- return 0;
+ rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_GPIO4CD_SHIFT);
}
-static void rk3399_force_power_on_reset(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)
{
- ofnode node;
- struct gpio_desc sysreset_gpio;
-
- debug("%s: trying to force a power-on reset\n", __func__);
+ const char *boot_device =
+ ofnode_get_chosen_prop("u-boot,spl-boot-device");
+ char *env_default, *env;
- node = ofnode_path("/config");
- if (!ofnode_valid(node)) {
- debug("%s: no /config node?\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);
- 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;
+ 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);
- dm_gpio_set_value(&sysreset_gpio, 1);
-}
-
-void spl_board_init(void)
-{
- int ret;
- struct rk3399_cru *cru = rockchip_get_cru();
+ if (strcmp(env_default, env) != 0) {
+ debug("%s: boot_targets not default, don't change it\n",
+ __func__);
+ return 0;
+ }
/*
- * 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.
+ * 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).
*
- * 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.
+ * 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 (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 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;
+ 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);
+ }
}
- 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);
-
- /* 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
+ return 0;
}
-static void setup_serial(void)
+int misc_init_r(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;
- }
-
- /* 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",
- __func__);
- return;
- }
-
- memset(cpuid_str, 0, sizeof(cpuid_str));
- for (i = 0; i < 16; i++)
- sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]);
+ const u32 cpuid_offset = 0x7;
+ const u32 cpuid_length = 0x10;
+ u8 cpuid[cpuid_length];
+ int ret;
- debug("cpuid: %s\n", cpuid_str);
+ ret = rockchip_cpuid_from_efuse(cpuid_offset, cpuid_length, cpuid);
+ if (ret)
+ return ret;
- /*
- * 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];
- }
+ ret = rockchip_cpuid_set(cpuid, cpuid_length);
+ if (ret)
+ return ret;
- serialno = crc32_no_comp(0, low, 8);
- serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
- snprintf(serialno_str, sizeof(serialno_str), "%016llx", serialno);
+ ret = rockchip_setup_macaddr();
+ if (ret)
+ return ret;
- 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);
-}
-
-int misc_init_r(void)
-{
- setup_serial();
- setup_macaddr();
setup_iodomain();
+ setup_boottargets();
return 0;
}
projects / platform / kernel / u-boot.git / blobdiff