rockchip: rename board-spl.c to rk3288-board-spl.c

since different rockchip soc need different spl file,
so rename board-spl.c.

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

1 files changed, 277 insertions, 0 deletions

diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
new file mode 100644
index 0000000000..0426adf6b7
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -0,0 +1,277 @@
+/*
+ * (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();
+}