rockchip: Add core Soc start-up code for rv1108

RV1108 is embedded with an ARM Cortex-A7 single core and a DSP core
from Rockchip. It is designed for varies application scenario such
as car DVR, sports DV, secure camera and UAV camera.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-rockchip/Kconfig

@@ -79,6 +79,13 @@ config ROCKCHIP_RK3399
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UARTs, SPI, I2C and PWMs.
 
+config ROCKCHIP_RV1108
+	bool "Support Rockchip RV1108"
+	select CPU_V7
+	help
+	  The Rockchip RV1108 is a ARM-based SoC with a single-core Cortex-A7
+	  and a DSP.
+
 config ROCKCHIP_SPL_BACK_TO_BROM
 	bool "SPL returns to bootrom"
 	default y if ROCKCHIP_RK3036
@@ -108,4 +115,5 @@ source "arch/arm/mach-rockchip/rk3288/Kconfig"
 source "arch/arm/mach-rockchip/rk3328/Kconfig"
 source "arch/arm/mach-rockchip/rk3368/Kconfig"
 source "arch/arm/mach-rockchip/rk3399/Kconfig"
+source "arch/arm/mach-rockchip/rv1108/Kconfig"
 endif

arch/arm/mach-rockchip/Makefile

@@ -33,3 +33,4 @@ obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288/
 obj-$(CONFIG_ROCKCHIP_RK3328) += rk3328/
 obj-$(CONFIG_ROCKCHIP_RK3368) += rk3368/
 obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399/
+obj-$(CONFIG_ROCKCHIP_RV1108) += rv1108/

arch/arm/mach-rockchip/rv1108/Kconfig

@@ -0,0 +1,9 @@
+if ROCKCHIP_RV1108
+
+config SYS_SOC
+	default "rockchip"
+
+config SYS_MALLOC_F_LEN
+	default 0x400
+
+endif

arch/arm/mach-rockchip/rv1108/Makefile

@@ -0,0 +1,11 @@
+#
+# (C) Copyright 2016 Rockchip Electronics Co., Ltd
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+ifndef CONFIG_SPL_BUILD
+obj-y += syscon_rv1108.o
+endif
+obj-y += rv1108.o
+obj-y += clk_rv1108.o

arch/arm/mach-rockchip/rv1108/clk_rv1108.c

@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ * Author: Andy Yan <andy.yan@rock-chips.com>
+ * SPDX-License-Identifier:     GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rv1108.h>
+
+int rockchip_get_clk(struct udevice **devp)
+{
+	return uclass_get_device_by_driver(UCLASS_CLK,
+			DM_GET_DRIVER(clk_rv1108), devp);
+}
+
+void *rockchip_get_cru(void)
+{
+	struct rv1108_clk_priv *priv;
+	struct udevice *dev;
+	int ret;
+
+	ret = rockchip_get_clk(&dev);
+	if (ret)
+		return ERR_PTR(ret);
+
+	priv = dev_get_priv(dev);
+
+	return priv->cru;
+}

arch/arm/mach-rockchip/rv1108/rv1108.c

@@ -0,0 +1,15 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ * Author: Andy Yan <andy.yan@rock-chips.com>
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif

arch/arm/mach-rockchip/rv1108/syscon_rv1108.c

@@ -0,0 +1,21 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch/clock.h>
+
+static const struct udevice_id rv1108_syscon_ids[] = {
+	{ .compatible = "rockchip,rv1108-grf", .data = ROCKCHIP_SYSCON_GRF },
+	{ }
+};
+
+U_BOOT_DRIVER(syscon_rv1108) = {
+	.name = "rv1108_syscon",
+	.id = UCLASS_SYSCON,
+	.of_match = rv1108_syscon_ids,
+};

drivers/sysreset/Makefile

@@ -17,6 +17,7 @@ obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o
 obj-$(CONFIG_ROCKCHIP_RK3328) += sysreset_rk3328.o
 obj-$(CONFIG_ROCKCHIP_RK3368) += sysreset_rk3368.o
 obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o
+obj-$(CONFIG_ROCKCHIP_RV1108) += sysreset_rv1108.o
 obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o
 obj-$(CONFIG_ARCH_SNAPDRAGON) += sysreset_snapdragon.o
 obj-$(CONFIG_ARCH_STI) += sysreset_sti.o

drivers/sysreset/sysreset_rv1108.c

@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ * Author: Andy Yan <andy.yan@rock-chips.com>
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rv1108.h>
+#include <asm/arch/hardware.h>
+#include <linux/err.h>
+
+int rv1108_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct rv1108_cru *cru = rockchip_get_cru();
+
+	if (IS_ERR(cru))
+		return PTR_ERR(cru);
+
+	switch (type) {
+	case SYSRESET_WARM:
+		writel(0xeca8, &cru->glb_srst_snd_val);
+		break;
+	case SYSRESET_COLD:
+		writel(0xfdb9, &cru->glb_srst_fst_val);
+		break;
+	default:
+		return -EPROTONOSUPPORT;
+	}
+
+	return -EINPROGRESS;
+}
+
+static struct sysreset_ops rv1108_sysreset = {
+	.request	= rv1108_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rv1108) = {
+	.name	= "rv1108_sysreset",
+	.id	= UCLASS_SYSRESET,
+	.ops	= &rv1108_sysreset,
+};

include/configs/rv1108_common.h

@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#ifndef __CONFIG_RV1108_COMMON_H
+#define __CONFIG_RV1108_COMMON_H
+
+#include <asm/arch/hardware.h>
+#include "rockchip-common.h"
+
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			0x2000
+#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_MALLOC_LEN		(32 << 20)
+#define CONFIG_SYS_CBSIZE		1024
+#define CONFIG_SKIP_LOWLEVEL_INIT
+
+#define CONFIG_SYS_TIMER_RATE		(24 * 1000 * 1000)
+/* TIMER1,initialized by ddr initialize code */
+#define CONFIG_SYS_TIMER_BASE		0x10350020
+#define CONFIG_SYS_TIMER_COUNTER	(CONFIG_SYS_TIMER_BASE + 8)
+
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_MEM32
+
+#define CONFIG_SYS_SDRAM_BASE		0x60000000
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_TEXT_BASE		CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_TEXT_BASE + 0x100000)
+#define CONFIG_SYS_LOAD_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x2000000)
+
+#endif