arm: rockchip: Add RV1126 arch core support

Rockchip RV1126 is a high-performance vision processor SoC
for IPC/CVR, especially for AI related application.

Add arch core support for it.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Change-Id: I22fde40ec375e3c6aba39808abf252edc45d4b04

9 files changed, 268 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rv1126/boot0.h b/arch/arm/include/asm/arch-rv1126/boot0.h
new file mode 100644
index 000000000000..2e78b074ade8
--- /dev/null
+++ b/arch/arm/include/asm/arch-rv1126/boot0.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ */
+
+#ifndef __ASM_ARCH_BOOT0_H__
+#define __ASM_ARCH_BOOT0_H__
+
+#include <asm/arch-rockchip/boot0.h>
+
+#endif
diff --git a/arch/arm/include/asm/arch-rv1126/gpio.h b/arch/arm/include/asm/arch-rv1126/gpio.h
new file mode 100644
index 000000000000..eca79d515940
--- /dev/null
+++ b/arch/arm/include/asm/arch-rv1126/gpio.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ */
+
+#ifndef __ASM_ARCH_GPIO_H__
+#define __ASM_ARCH_GPIO_H__
+
+#include <asm/arch-rockchip/gpio.h>
+
+#endif
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 4898260017d4..b678ec41318e 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -302,6 +302,51 @@ config ROCKCHIP_RV1108
 	  The Rockchip RV1108 is a ARM-based SoC with a single-core Cortex-A7
 	  and a DSP.
 
+config ROCKCHIP_RV1126
+	bool "Support Rockchip RV1126"
+	select CPU_V7A
+	select SKIP_LOWLEVEL_INIT_ONLY
+	select TPL
+	select SUPPORT_TPL
+	select TPL_NEEDS_SEPARATE_STACK
+	select TPL_ROCKCHIP_BACK_TO_BROM
+	select SPL
+	select SUPPORT_SPL
+	select SPL_STACK_R
+	select CLK
+	select FIT
+	select PINCTRL
+	select RAM
+	select ROCKCHIP_SDRAM_COMMON
+	select REGMAP
+	select SYSCON
+	select DM_PMIC
+	select DM_REGULATOR_FIXED
+	select DM_RESET
+	select REGULATOR_RK8XX
+	select PMIC_RK8XX
+	select BOARD_LATE_INIT
+	imply ROCKCHIP_COMMON_BOARD
+	imply TPL_DM
+	imply TPL_LIBCOMMON_SUPPORT
+	imply TPL_LIBGENERIC_SUPPORT
+	imply TPL_OF_CONTROL
+	imply TPL_OF_PLATDATA
+	imply TPL_RAM
+	imply TPL_ROCKCHIP_COMMON_BOARD
+	imply TPL_SERIAL
+	imply SPL_CLK
+	imply SPL_DM
+	imply SPL_DRIVERS_MISC
+	imply SPL_LIBCOMMON_SUPPORT
+	imply SPL_LIBGENERIC_SUPPORT
+	imply SPL_OF_CONTROL
+	imply SPL_RAM
+	imply SPL_REGMAP
+	imply SPL_ROCKCHIP_COMMON_BOARD
+	imply SPL_SERIAL
+	imply SPL_SYSCON
+
 config ROCKCHIP_USB_UART
 	bool "Route uart output to usb pins"
 	help
@@ -447,4 +492,5 @@ source "arch/arm/mach-rockchip/rk3368/Kconfig"
 source "arch/arm/mach-rockchip/rk3399/Kconfig"
 source "arch/arm/mach-rockchip/rk3568/Kconfig"
 source "arch/arm/mach-rockchip/rv1108/Kconfig"
+source "arch/arm/mach-rockchip/rv1126/Kconfig"
 endif
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index 6c1c7b8a1080..32138fa723fe 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -45,6 +45,7 @@ obj-$(CONFIG_ROCKCHIP_RK3368) += rk3368/
 obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399/
 obj-$(CONFIG_ROCKCHIP_RK3568) += rk3568/
 obj-$(CONFIG_ROCKCHIP_RV1108) += rv1108/
+obj-$(CONFIG_ROCKCHIP_RV1126) += rv1126/
 
 # Clear out SPL objects, in case this is a TPL build
 obj-spl-$(CONFIG_TPL_BUILD) =
diff --git a/arch/arm/mach-rockchip/rv1126/Kconfig b/arch/arm/mach-rockchip/rv1126/Kconfig
new file mode 100644
index 000000000000..4f5021b0834e
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/Kconfig
@@ -0,0 +1,43 @@
+if ROCKCHIP_RV1126
+
+config SOC_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select HAS_CUSTOM_SYS_INIT_SP_ADDR
+
+config ROCKCHIP_BOOT_MODE_REG
+	default 0xfe020200
+
+config ROCKCHIP_STIMER_BASE
+	default 0xff670020
+
+config SYS_SOC
+	default "rv1126"
+
+config CUSTOM_SYS_INIT_SP_ADDR
+	default 0x800000
+
+config SPL_STACK
+	default 0x600000
+
+config SPL_STACK_R_ADDR
+	default 0x800000
+
+config TPL_LDSCRIPT
+	default "arch/arm/mach-rockchip/u-boot-tpl.lds"
+
+config TPL_STACK
+        default 0xff718000
+
+config TPL_SYS_MALLOC_F_LEN
+	default 0x2000
+
+config TPL_TEXT_BASE
+	default 0xff701000
+
+config SYS_MALLOC_F_LEN
+	default 0x2000
+
+config TEXT_BASE
+	default 0x600000
+
+endif
diff --git a/arch/arm/mach-rockchip/rv1126/Makefile b/arch/arm/mach-rockchip/rv1126/Makefile
new file mode 100644
index 000000000000..b2875633db59
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/Makefile
@@ -0,0 +1,13 @@
+#
+# (C) Copyright 2019 Rockchip Electronics Co., Ltd
+# Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += rv1126.o
+
+ifndef CONFIG_TPL_BUILD
+obj-y += clk_rv1126.o
+obj-y += syscon_rv1126.o
+endif
diff --git a/arch/arm/mach-rockchip/rv1126/clk_rv1126.c b/arch/arm/mach-rockchip/rv1126/clk_rv1126.c
new file mode 100644
index 000000000000..bd8902718f20
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/clk_rv1126.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/cru_rv1126.h>
+#include <linux/err.h>
+
+int rockchip_get_clk(struct udevice **devp)
+{
+	return uclass_get_device_by_driver(UCLASS_CLK,
+			DM_DRIVER_GET(rockchip_rv1126_cru), devp);
+}
+
+void *rockchip_get_cru(void)
+{
+	struct rv1126_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;
+}
diff --git a/arch/arm/mach-rockchip/rv1126/rv1126.c b/arch/arm/mach-rockchip/rv1126/rv1126.c
new file mode 100644
index 000000000000..91554c98b65f
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/rv1126.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 Rockchip Electronics Co., Ltd
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/grf_rv1126.h>
+
+#define GRF_BASE		0xFE000000
+
+const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+	[BROM_BOOTSOURCE_EMMC] = "/mmc@ffc50000",
+	[BROM_BOOTSOURCE_SD] = "/mmc@ffc60000",
+};
+
+/* GRF_GPIO3A_IOMUX_L */
+enum {
+	GPIO3A3_SHIFT		= 12,
+	GPIO3A3_MASK		= GENMASK(14, 12),
+	GPIO3A3_GPIO		= 0,
+	GPIO3A3_UART2_RX_M1,
+	GPIO3A3_A7_JTAG_TMS_M1,
+
+	GPIO3A2_SHIFT		= 8,
+	GPIO3A2_MASK		= GENMASK(10, 8),
+	GPIO3A2_GPIO		= 0,
+	GPIO3A2_UART2_TX_M1,
+	GPIO3A2_A7_JTAG_TCK_M1,
+};
+
+/* GRF_IOFUNC_CON2 */
+enum {
+	UART2_IO_SEL_SHIFT	= 8,
+	UART2_IO_SEL_MASK	= GENMASK(8, 8),
+	UART2_IO_SEL_M0		= 0,
+	UART2_IO_SEL_M1,
+};
+
+void board_debug_uart_init(void)
+{
+	static struct rv1126_grf * const grf = (void *)GRF_BASE;
+
+	/* Enable early UART2 channel m1 on the rv1126 */
+	rk_clrsetreg(&grf->iofunc_con2, UART2_IO_SEL_MASK,
+		     UART2_IO_SEL_M1 << UART2_IO_SEL_SHIFT);
+
+	/* Switch iomux */
+	rk_clrsetreg(&grf->gpio3a_iomux_l,
+		     GPIO3A3_MASK | GPIO3A2_MASK,
+		     GPIO3A3_UART2_RX_M1 << GPIO3A3_SHIFT |
+		     GPIO3A2_UART2_TX_M1 << GPIO3A2_SHIFT);
+}
+
+#ifndef CONFIG_TPL_BUILD
+int arch_cpu_init(void)
+{
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-rockchip/rv1126/syscon_rv1126.c b/arch/arm/mach-rockchip/rv1126/syscon_rv1126.c
new file mode 100644
index 000000000000..599ea66e3d67
--- /dev/null
+++ b/arch/arm/mach-rockchip/rv1126/syscon_rv1126.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <syscon.h>
+#include <asm/arch-rockchip/clock.h>
+
+static const struct udevice_id rv1126_syscon_ids[] = {
+	{ .compatible = "rockchip,rv1126-grf", .data = ROCKCHIP_SYSCON_GRF },
+	{ .compatible = "rockchip,rv1126-pmugrf", .data = ROCKCHIP_SYSCON_PMUGRF },
+	{ }
+};
+
+U_BOOT_DRIVER(syscon_rv1126) = {
+	.name = "rv1126_syscon",
+	.id = UCLASS_SYSCON,
+	.of_match = rv1126_syscon_ids,
+};
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+static int rv1126_syscon_bind_of_plat(struct udevice *dev)
+{
+	dev->driver_data = dev->driver->of_match->data;
+	debug("syscon: %s %d\n", dev->name, (uint)dev->driver_data);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(rockchip_rv1126_pmu) = {
+	.name = "rockchip_rv1126_pmu",
+	.id = UCLASS_SYSCON,
+	.of_match = rv1126_syscon_ids,
+	.bind = rv1126_syscon_bind_of_plat,
+};
+
+U_BOOT_DRIVER(rockchip_rv1126_pmugrf) = {
+	.name = "rockchip_rv1126_pmugrf",
+	.id = UCLASS_SYSCON,
+	.of_match = rv1126_syscon_ids + 1,
+	.bind = rv1126_syscon_bind_of_plat,
+};
+#endif