+++ /dev/null
-/*
- * (C) Copyright 2015 Google, Inc
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <debug_uart.h>
-#include <dm.h>
-#include <fdtdec.h>
-#include <led.h>
-#include <malloc.h>
-#include <ram.h>
-#include <spl.h>
-#include <asm/gpio.h>
-#include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/periph.h>
-#include <asm/arch/sdram.h>
-#include <asm/arch/timer.h>
-#include <dm/pinctrl.h>
-#include <dm/root.h>
-#include <dm/test.h>
-#include <dm/util.h>
-#include <power/regulator.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-u32 spl_boot_device(void)
-{
- const void *blob = gd->fdt_blob;
- struct udevice *dev;
- const char *bootdev;
- int node;
- int ret;
-
- bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
- debug("Boot device %s\n", bootdev);
- if (!bootdev)
- goto fallback;
-
- node = fdt_path_offset(blob, bootdev);
- if (node < 0) {
- debug("node=%d\n", node);
- goto fallback;
- }
- ret = device_get_global_by_of_offset(node, &dev);
- if (ret) {
- debug("device at node %s/%d not found: %d\n", bootdev, node,
- ret);
- goto fallback;
- }
- debug("Found device %s\n", dev->name);
- switch (device_get_uclass_id(dev)) {
- case UCLASS_SPI_FLASH:
- return BOOT_DEVICE_SPI;
- case UCLASS_MMC:
- return BOOT_DEVICE_MMC1;
- default:
- debug("Booting from device uclass '%s' not supported\n",
- dev_get_uclass_name(dev));
- }
-
-fallback:
- return BOOT_DEVICE_MMC1;
-}
-
-u32 spl_boot_mode(void)
-{
- return MMCSD_MODE_RAW;
-}
-
-/* read L2 control register (L2CTLR) */
-static inline uint32_t read_l2ctlr(void)
-{
- uint32_t val = 0;
-
- asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val));
-
- return val;
-}
-
-/* write L2 control register (L2CTLR) */
-static inline void write_l2ctlr(uint32_t val)
-{
- /*
- * Note: L2CTLR can only be written when the L2 memory system
- * is idle, ie before the MMU is enabled.
- */
- asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory");
- isb();
-}
-
-static void configure_l2ctlr(void)
-{
- uint32_t l2ctlr;
-
- l2ctlr = read_l2ctlr();
- l2ctlr &= 0xfffc0000; /* clear bit0~bit17 */
-
- /*
- * Data RAM write latency: 2 cycles
- * Data RAM read latency: 2 cycles
- * Data RAM setup latency: 1 cycle
- * Tag RAM write latency: 1 cycle
- * Tag RAM read latency: 1 cycle
- * Tag RAM setup latency: 1 cycle
- */
- l2ctlr |= (1 << 3 | 1 << 0);
- write_l2ctlr(l2ctlr);
-}
-
-static int configure_emmc(struct udevice *pinctrl)
-{
- struct gpio_desc desc;
- int ret;
-
- pinctrl_request_noflags(pinctrl, PERIPH_ID_EMMC);
-
- /*
- * TODO(sjg@chromium.org): Pick this up from device tree or perhaps
- * use the EMMC_PWREN setting.
- */
- ret = dm_gpio_lookup_name("D9", &desc);
- if (ret) {
- debug("gpio ret=%d\n", ret);
- return ret;
- }
- ret = dm_gpio_request(&desc, "emmc_pwren");
- if (ret) {
- debug("gpio_request ret=%d\n", ret);
- return ret;
- }
- ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
- if (ret) {
- debug("gpio dir ret=%d\n", ret);
- return ret;
- }
- ret = dm_gpio_set_value(&desc, 1);
- if (ret) {
- debug("gpio value ret=%d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-void board_init_f(ulong dummy)
-{
- struct udevice *pinctrl;
- struct udevice *dev;
- int ret;
-
- /* Example code showing how to enable the debug UART on RK3288 */
-#ifdef EARLY_UART
-#include <asm/arch/grf_rk3288.h>
- /* Enable early UART on the RK3288 */
-#define GRF_BASE 0xff770000
- struct rk3288_grf * const grf = (void *)GRF_BASE;
-
- rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
- GPIO7C6_MASK << GPIO7C6_SHIFT,
- GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
- GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
- /*
- * Debug UART can be used from here if required:
- *
- * debug_uart_init();
- * printch('a');
- * printhex8(0x1234);
- * printascii("string");
- */
- debug_uart_init();
-#endif
-
- ret = spl_init();
- if (ret) {
- debug("spl_init() failed: %d\n", ret);
- hang();
- }
-
- rockchip_timer_init();
- configure_l2ctlr();
-
- ret = uclass_get_device(UCLASS_CLK, 0, &dev);
- if (ret) {
- debug("CLK init failed: %d\n", ret);
- return;
- }
-
- ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
- if (ret) {
- debug("Pinctrl init failed: %d\n", ret);
- return;
- }
-
- ret = uclass_get_device(UCLASS_RAM, 0, &dev);
- if (ret) {
- debug("DRAM init failed: %d\n", ret);
- return;
- }
-
- /*
- * Now that DRAM is initialized setup base pointer for simple malloc
- * into RAM.
- */
- gd->malloc_base = CONFIG_SPL_STACK_R_ADDR;
- gd->malloc_ptr = 0;
-}
-
-static int setup_led(void)
-{
-#ifdef CONFIG_SPL_LED
- struct udevice *dev;
- char *led_name;
- int ret;
-
- led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
- if (!led_name)
- return 0;
- ret = led_get_by_label(led_name, &dev);
- if (ret) {
- debug("%s: get=%d\n", __func__, ret);
- return ret;
- }
- ret = led_set_on(dev, 1);
- if (ret)
- return ret;
-#endif
-
- return 0;
-}
-
-void spl_board_init(void)
-{
- struct udevice *pinctrl;
- int ret;
-
- ret = setup_led();
-
- if (ret) {
- debug("LED ret=%d\n", ret);
- hang();
- }
-
- ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
- if (ret) {
- debug("%s: Cannot find pinctrl device\n", __func__);
- goto err;
- }
- ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
- if (ret) {
- debug("%s: Failed to set up SD card\n", __func__);
- goto err;
- }
- ret = configure_emmc(pinctrl);
- if (ret) {
- debug("%s: Failed to set up eMMC\n", __func__);
- goto err;
- }
-
- /* Enable debug UART */
- ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
- if (ret) {
- debug("%s: Failed to set up console UART\n", __func__);
- goto err;
- }
-
- preloader_console_init();
- return;
-err:
- printf("spl_board_init: Error %d\n", ret);
-
- /* No way to report error here */
- hang();
-}
--- /dev/null
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <led.h>
+#include <malloc.h>
+#include <ram.h>
+#include <spl.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/periph.h>
+#include <asm/arch/sdram.h>
+#include <asm/arch/timer.h>
+#include <dm/pinctrl.h>
+#include <dm/root.h>
+#include <dm/test.h>
+#include <dm/util.h>
+#include <power/regulator.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 spl_boot_device(void)
+{
+ const void *blob = gd->fdt_blob;
+ struct udevice *dev;
+ const char *bootdev;
+ int node;
+ int ret;
+
+ bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
+ debug("Boot device %s\n", bootdev);
+ if (!bootdev)
+ goto fallback;
+
+ node = fdt_path_offset(blob, bootdev);
+ if (node < 0) {
+ debug("node=%d\n", node);
+ goto fallback;
+ }
+ ret = device_get_global_by_of_offset(node, &dev);
+ if (ret) {
+ debug("device at node %s/%d not found: %d\n", bootdev, node,
+ ret);
+ goto fallback;
+ }
+ debug("Found device %s\n", dev->name);
+ switch (device_get_uclass_id(dev)) {
+ case UCLASS_SPI_FLASH:
+ return BOOT_DEVICE_SPI;
+ case UCLASS_MMC:
+ return BOOT_DEVICE_MMC1;
+ default:
+ debug("Booting from device uclass '%s' not supported\n",
+ dev_get_uclass_name(dev));
+ }
+
+fallback:
+ return BOOT_DEVICE_MMC1;
+}
+
+u32 spl_boot_mode(void)
+{
+ return MMCSD_MODE_RAW;
+}
+
+/* read L2 control register (L2CTLR) */
+static inline uint32_t read_l2ctlr(void)
+{
+ uint32_t val = 0;
+
+ asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val));
+
+ return val;
+}
+
+/* write L2 control register (L2CTLR) */
+static inline void write_l2ctlr(uint32_t val)
+{
+ /*
+ * Note: L2CTLR can only be written when the L2 memory system
+ * is idle, ie before the MMU is enabled.
+ */
+ asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory");
+ isb();
+}
+
+static void configure_l2ctlr(void)
+{
+ uint32_t l2ctlr;
+
+ l2ctlr = read_l2ctlr();
+ l2ctlr &= 0xfffc0000; /* clear bit0~bit17 */
+
+ /*
+ * Data RAM write latency: 2 cycles
+ * Data RAM read latency: 2 cycles
+ * Data RAM setup latency: 1 cycle
+ * Tag RAM write latency: 1 cycle
+ * Tag RAM read latency: 1 cycle
+ * Tag RAM setup latency: 1 cycle
+ */
+ l2ctlr |= (1 << 3 | 1 << 0);
+ write_l2ctlr(l2ctlr);
+}
+
+static int configure_emmc(struct udevice *pinctrl)
+{
+ struct gpio_desc desc;
+ int ret;
+
+ pinctrl_request_noflags(pinctrl, PERIPH_ID_EMMC);
+
+ /*
+ * TODO(sjg@chromium.org): Pick this up from device tree or perhaps
+ * use the EMMC_PWREN setting.
+ */
+ ret = dm_gpio_lookup_name("D9", &desc);
+ if (ret) {
+ debug("gpio ret=%d\n", ret);
+ return ret;
+ }
+ ret = dm_gpio_request(&desc, "emmc_pwren");
+ if (ret) {
+ debug("gpio_request ret=%d\n", ret);
+ return ret;
+ }
+ ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
+ if (ret) {
+ debug("gpio dir ret=%d\n", ret);
+ return ret;
+ }
+ ret = dm_gpio_set_value(&desc, 1);
+ if (ret) {
+ debug("gpio value ret=%d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+void board_init_f(ulong dummy)
+{
+ struct udevice *pinctrl;
+ struct udevice *dev;
+ int ret;
+
+ /* Example code showing how to enable the debug UART on RK3288 */
+#ifdef EARLY_UART
+#include <asm/arch/grf_rk3288.h>
+ /* Enable early UART on the RK3288 */
+#define GRF_BASE 0xff770000
+ struct rk3288_grf * const grf = (void *)GRF_BASE;
+
+ rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
+ GPIO7C6_MASK << GPIO7C6_SHIFT,
+ GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
+ GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
+ /*
+ * Debug UART can be used from here if required:
+ *
+ * debug_uart_init();
+ * printch('a');
+ * printhex8(0x1234);
+ * printascii("string");
+ */
+ debug_uart_init();
+#endif
+
+ ret = spl_init();
+ if (ret) {
+ debug("spl_init() failed: %d\n", ret);
+ hang();
+ }
+
+ rockchip_timer_init();
+ configure_l2ctlr();
+
+ ret = uclass_get_device(UCLASS_CLK, 0, &dev);
+ if (ret) {
+ debug("CLK init failed: %d\n", ret);
+ return;
+ }
+
+ ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
+ if (ret) {
+ debug("Pinctrl init failed: %d\n", ret);
+ return;
+ }
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret) {
+ debug("DRAM init failed: %d\n", ret);
+ return;
+ }
+
+ /*
+ * Now that DRAM is initialized setup base pointer for simple malloc
+ * into RAM.
+ */
+ gd->malloc_base = CONFIG_SPL_STACK_R_ADDR;
+ gd->malloc_ptr = 0;
+}
+
+static int setup_led(void)
+{
+#ifdef CONFIG_SPL_LED
+ struct udevice *dev;
+ char *led_name;
+ int ret;
+
+ led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
+ if (!led_name)
+ return 0;
+ ret = led_get_by_label(led_name, &dev);
+ if (ret) {
+ debug("%s: get=%d\n", __func__, ret);
+ return ret;
+ }
+ ret = led_set_on(dev, 1);
+ if (ret)
+ return ret;
+#endif
+
+ return 0;
+}
+
+void spl_board_init(void)
+{
+ struct udevice *pinctrl;
+ int ret;
+
+ ret = setup_led();
+
+ if (ret) {
+ debug("LED ret=%d\n", ret);
+ hang();
+ }
+
+ ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
+ if (ret) {
+ debug("%s: Cannot find pinctrl device\n", __func__);
+ goto err;
+ }
+ ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
+ if (ret) {
+ debug("%s: Failed to set up SD card\n", __func__);
+ goto err;
+ }
+ ret = configure_emmc(pinctrl);
+ if (ret) {
+ debug("%s: Failed to set up eMMC\n", __func__);
+ goto err;
+ }
+
+ /* Enable debug UART */
+ ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
+ if (ret) {
+ debug("%s: Failed to set up console UART\n", __func__);
+ goto err;
+ }
+
+ preloader_console_init();
+ return;
+err:
+ printf("spl_board_init: Error %d\n", ret);
+
+ /* No way to report error here */
+ hang();
+}
projects / oweals / u-boot.git / commitdiff