This patch adds a basic support for the ARM-based Rockchip SoCs of the
RK3xxx family.
Signed-off-by: Beniamino Galvani <b.galvani@xxxxxxxxx>
---
arch/arm/Kconfig | 6 +++++
arch/arm/Makefile | 1 +
arch/arm/mach-rockchip/Kconfig | 7 +++++
arch/arm/mach-rockchip/Makefile | 1 +
arch/arm/mach-rockchip/core.c | 28 ++++++++++++++++++++
.../arm/mach-rockchip/include/mach/rockchip-regs.h | 25 +++++++++++++++++
6 files changed, 68 insertions(+)
create mode 100644 arch/arm/mach-rockchip/Kconfig
create mode 100644 arch/arm/mach-rockchip/Makefile
create mode 100644 arch/arm/mach-rockchip/core.c
create mode 100644 arch/arm/mach-rockchip/include/mach/rockchip-regs.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3754646..a7db86c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -125,6 +125,11 @@ config ARCH_PXA
select GENERIC_GPIO
select HAS_POWEROFF
+config ARCH_ROCKCHIP
+ bool "Rockchip RX3xxx"
+ select CPU_V7
+ select ARM_SMP_TWD
+
config ARCH_SOCFPGA
bool "Altera SOCFPGA cyclone5"
select HAS_DEBUG_LL
@@ -204,6 +209,7 @@ source arch/arm/mach-netx/Kconfig
source arch/arm/mach-nomadik/Kconfig
source arch/arm/mach-omap/Kconfig
source arch/arm/mach-pxa/Kconfig
+source arch/arm/mach-rockchip/Kconfig
source arch/arm/mach-samsung/Kconfig
source arch/arm/mach-socfpga/Kconfig
source arch/arm/mach-versatile/Kconfig
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index c1bd836..3312a49 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -64,6 +64,7 @@ machine-$(CONFIG_ARCH_NOMADIK) := nomadik
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_OMAP) := omap
machine-$(CONFIG_ARCH_PXA) := pxa
+machine-$(CONFIG_ARCH_ROCKCHIP) := rockchip
machine-$(CONFIG_ARCH_SAMSUNG) := samsung
machine-$(CONFIG_ARCH_SOCFPGA) := socfpga
machine-$(CONFIG_ARCH_VERSATILE) := versatile
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
new file mode 100644
index 0000000..dfaf146
--- /dev/null
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -0,0 +1,7 @@
+if ARCH_ROCKCHIP
+
+config ARCH_TEXT_BASE
+ hex
+ default 0x68000000
+
+endif
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
new file mode 100644
index 0000000..820eb10
--- /dev/null
+++ b/arch/arm/mach-rockchip/Makefile
@@ -0,0 +1 @@
+obj-y += core.o
diff --git a/arch/arm/mach-rockchip/core.c b/arch/arm/mach-rockchip/core.c
new file mode 100644
index 0000000..bab06df
--- /dev/null
+++ b/arch/arm/mach-rockchip/core.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <asm/io.h>
+#include <common.h>
+#include <mach/rockchip-regs.h>
+
+void __noreturn reset_cpu(unsigned long addr)
+{
+ /* Map bootrom from address 0 */
+ writel(RK_SOC_CON0_REMAP << 16, RK_GRF_BASE + RK_GRF_SOC_CON0);
+ /* Reset */
+ writel(0xeca8, RK_CRU_BASE + RK_CRU_GLB_SRST_SND);
+
+ while (1)
+ ;
+}
+EXPORT_SYMBOL(reset_cpu);
diff --git a/arch/arm/mach-rockchip/include/mach/rockchip-regs.h b/arch/arm/mach-rockchip/include/mach/rockchip-regs.h
new file mode 100644
index 0000000..a6a1c64
--- /dev/null
+++ b/arch/arm/mach-rockchip/include/mach/rockchip-regs.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MACH_ROCKCHIP_REGS_H
+#define __MACH_ROCKCHIP_REGS_H
+
+#define RK_CRU_BASE 0x20000000
+#define RK_GRF_BASE 0x20008000
+
+#define RK_CRU_GLB_SRST_SND 0x0104
+#define RK_GRF_SOC_CON0 0x00a0
+
+#define RK_SOC_CON0_REMAP (1 << 12)
+
+#endif /* __MACH_ROCKCHIP_REGS_H */
--
1.7.10.4
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