]> git.sur5r.net Git - u-boot/commitdiff
rockchip: Add core SoC start-up code
authorSimon Glass <sjg@chromium.org>
Sun, 30 Aug 2015 22:55:38 +0000 (16:55 -0600)
committerSimon Glass <sjg@chromium.org>
Thu, 3 Sep 2015 03:28:24 +0000 (21:28 -0600)
Add code for starting up U-Boot SPL and U-Boot proper. This is generic and
makes use of devices provided by the board- or SoC-specific code.

Signed-off-by: Simon Glass <sjg@chromium.org>
arch/arm/Kconfig
arch/arm/Makefile
arch/arm/mach-rockchip/Kconfig [new file with mode: 0644]
arch/arm/mach-rockchip/Makefile [new file with mode: 0644]
arch/arm/mach-rockchip/board-spl.c [new file with mode: 0644]
arch/arm/mach-rockchip/board.c [new file with mode: 0644]
arch/arm/mach-rockchip/common.c [new file with mode: 0644]
arch/arm/mach-rockchip/rk3288/Kconfig [new file with mode: 0644]

index cd88df443ab0206c7a931f19126de0979f0f8a83..194fb7bd8bcedd69347bcf88c892bfe5f8b03e94 100644 (file)
@@ -829,6 +829,14 @@ config TARGET_STM32F429_DISCOVERY
        bool "Support STM32F429 Discovery"
        select CPU_V7M
 
+config ARCH_ROCKCHIP
+       bool "Support Rockchip SoCs"
+       select SUPPORT_SPL
+       select SPL
+       select OF_CONTROL
+       select CPU_V7
+       select DM
+
 endchoice
 
 source "arch/arm/mach-at91/Kconfig"
@@ -863,6 +871,8 @@ source "arch/arm/mach-orion5x/Kconfig"
 
 source "arch/arm/cpu/armv7/rmobile/Kconfig"
 
+source "arch/arm/mach-rockchip/Kconfig"
+
 source "arch/arm/cpu/armv7/s5pc1xx/Kconfig"
 
 source "arch/arm/mach-socfpga/Kconfig"
index e84d6d366e10cfacf4ab916499d1ddd1173d7d42..1eca815c08b3b68f4a28c535b0dcdf837f317261 100644 (file)
@@ -55,6 +55,7 @@ machine-$(CONFIG_ARCH_NOMADIK)                += nomadik
 # TODO: rename CONFIG_ORION5X -> CONFIG_ARCH_ORION5X
 machine-$(CONFIG_ORION5X)              += orion5x
 machine-$(CONFIG_ARCH_SOCFPGA)         += socfpga
+machine-$(CONFIG_ARCH_ROCKCHIP)                += rockchip
 machine-$(CONFIG_TEGRA)                        += tegra
 machine-$(CONFIG_ARCH_UNIPHIER)                += uniphier
 machine-$(CONFIG_ARCH_VERSATILE)       += versatile
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
new file mode 100644 (file)
index 0000000..ab50f4e
--- /dev/null
@@ -0,0 +1,41 @@
+if ARCH_ROCKCHIP
+
+config ROCKCHIP_RK3288
+       bool "Support Rockchip RK3288"
+       help
+         The Rockchip RK3288 is a ARM-based SoC with a quad-core Cortex-A17
+         including NEON and GPU, 1MB L2 cache, Mali-T7 graphics, two
+         video interfaces supporting HDMI and eDP, several DDR3 options
+         and video codec support. Peripherals include Gigabit Ethernet,
+         USB2 host and OTG, SDIO, I2S, UART,s, SPI, I2C and PWMs.
+
+config SYS_MALLOC_F
+       default y
+
+config SYS_MALLOC_F_LEN
+       default 0x800
+
+config SPL_DM
+       default y
+
+config DM_SERIAL
+       default y
+
+config DM_SPI
+       default y
+
+config DM_SPI_FLASH
+       default y
+
+config DM_I2C
+       default y
+
+config DM_GPIO
+       default y
+
+config ROCKCHIP_SERIAL
+       default y
+
+source "arch/arm/mach-rockchip/rk3288/Kconfig"
+
+endif
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
new file mode 100644 (file)
index 0000000..5a4e383
--- /dev/null
@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2014 Google, Inc
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+ifdef CONFIG_SPL_BUILD
+obj-y += board-spl.o
+else
+obj-y += board.o
+endif
+obj-y += common.o
+obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288/
diff --git a/arch/arm/mach-rockchip/board-spl.c b/arch/arm/mach-rockchip/board-spl.c
new file mode 100644 (file)
index 0000000..a241d96
--- /dev/null
@@ -0,0 +1,287 @@
+/*
+ * (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 <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);
+}
+
+struct rk3288_timer {
+       u32 timer_load_count0;
+       u32 timer_load_count1;
+       u32 timer_curr_value0;
+       u32 timer_curr_value1;
+       u32 timer_ctrl_reg;
+       u32 timer_int_status;
+};
+
+void init_timer(void)
+{
+       struct rk3288_timer * const timer7_ptr = (void *)TIMER7_BASE;
+
+       writel(0xffffffff, &timer7_ptr->timer_load_count0);
+       writel(0xffffffff, &timer7_ptr->timer_load_count1);
+       writel(1, &timer7_ptr->timer_ctrl_reg);
+}
+
+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();
+       }
+
+       init_timer();
+       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;
+       }
+}
+
+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();
+}
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
new file mode 100644 (file)
index 0000000..688bc0f
--- /dev/null
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ram.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+       return 0;
+}
+
+int dram_init(void)
+{
+       struct ram_info ram;
+       struct udevice *dev;
+       int ret;
+
+       ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+       if (ret) {
+               debug("DRAM init failed: %d\n", ret);
+               return ret;
+       }
+       ret = ram_get_info(dev, &ram);
+       if (ret) {
+               debug("Cannot get DRAM size: %d\n", ret);
+               return ret;
+       }
+       debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
+       gd->ram_size = ram.size;
+
+       return 0;
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+       /* Enable D-cache. I-cache is already enabled in start.S */
+       dcache_enable();
+}
+#endif
diff --git a/arch/arm/mach-rockchip/common.c b/arch/arm/mach-rockchip/common.c
new file mode 100644 (file)
index 0000000..fc7ac72
--- /dev/null
@@ -0,0 +1,28 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <linux/err.h>
+
+void *rockchip_get_cru(void)
+{
+       struct udevice *dev;
+       fdt_addr_t addr;
+       int ret;
+
+       ret = uclass_get_device(UCLASS_CLK, 0, &dev);
+       if (ret)
+               return ERR_PTR(ret);
+
+       addr = dev_get_addr(dev);
+       if (addr == FDT_ADDR_T_NONE)
+               return ERR_PTR(-EINVAL);
+
+       return (void *)addr;
+}
diff --git a/arch/arm/mach-rockchip/rk3288/Kconfig b/arch/arm/mach-rockchip/rk3288/Kconfig
new file mode 100644 (file)
index 0000000..26d5951
--- /dev/null
@@ -0,0 +1,6 @@
+if ROCKCHIP_RK3288
+
+config SYS_SOC
+       default "rockchip"
+
+endif