arm: armada-xp: Add basic support for Marvell Armada XP SoC

This basic support for the Marvell Armada XP is base on the existing kirkwood
support. Which has been generatized by moving some common files into
common marvell locations.

This is in preparation for the upcoming Armada XP MV78460 support.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>

1 files changed, 107 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-armada-xp/cpu.h b/arch/arm/include/asm/arch-armada-xp/cpu.h
new file mode 100644
index 0000000..6b60c21
--- /dev/null
+++ b/arch/arm/include/asm/arch-armada-xp/cpu.h
@@ -0,0 +1,107 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ARMADA_XP_CPU_H
+#define _ARMADA_XP_CPU_H
+
+#include <asm/system.h>
+
+#ifndef __ASSEMBLY__
+
+#define MVEBU_REG_PCIE_DEVID		(MVEBU_REG_PCIE_BASE + 0x00)
+#define MVEBU_REG_PCIE_REVID		(MVEBU_REG_PCIE_BASE + 0x08)
+
+enum memory_bank {
+	BANK0,
+	BANK1,
+	BANK2,
+	BANK3
+};
+
+enum cpu_winen {
+	CPU_WIN_DISABLE,
+	CPU_WIN_ENABLE
+};
+
+enum cpu_target {
+	CPU_TARGET_DRAM = 0x0,
+	CPU_TARGET_DEVICEBUS_BOOTROM_SPI = 0x1,
+	CPU_TARGET_ETH23 = 0x3,
+	CPU_TARGET_PCIE02 = 0x4,
+	CPU_TARGET_ETH01 = 0x7,
+	CPU_TARGET_PCIE13 = 0x8,
+	CPU_TARGET_SASRAM = 0x9,
+	CPU_TARGET_NAND = 0xd,
+};
+
+enum cpu_attrib {
+	CPU_ATTR_SASRAM = 0x01,
+	CPU_ATTR_DRAM_CS0 = 0x0e,
+	CPU_ATTR_DRAM_CS1 = 0x0d,
+	CPU_ATTR_DRAM_CS2 = 0x0b,
+	CPU_ATTR_DRAM_CS3 = 0x07,
+	CPU_ATTR_NANDFLASH = 0x2f,
+	CPU_ATTR_SPIFLASH = 0x1e,
+	CPU_ATTR_BOOTROM = 0x1d,
+	CPU_ATTR_PCIE_IO = 0xe0,
+	CPU_ATTR_PCIE_MEM = 0xe8,
+	CPU_ATTR_DEV_CS0 = 0x3e,
+	CPU_ATTR_DEV_CS1 = 0x3d,
+	CPU_ATTR_DEV_CS2 = 0x3b,
+	CPU_ATTR_DEV_CS3 = 0x37,
+};
+
+/*
+ * Default Device Address MAP BAR values
+ */
+#define DEFADR_PCI_MEM		0x90000000
+#define DEFADR_PCI_IO		0xC0000000
+#define DEFADR_SPIF		0xF4000000
+#define DEFADR_BOOTROM		0xF8000000
+
+struct mbus_win {
+	u32 base;
+	u32 size;
+	u8 target;
+	u8 attr;
+};
+
+/*
+ * System registers
+ * Ref: Datasheet sec:A.28
+ */
+struct mvebu_system_registers {
+	u8 pad1[0x60];
+	u32 rstoutn_mask; /* 0x60 */
+	u32 sys_soft_rst; /* 0x64 */
+};
+
+/*
+ * GPIO Registers
+ * Ref: Datasheet sec:A.19
+ */
+struct kwgpio_registers {
+	u32 dout;
+	u32 oe;
+	u32 blink_en;
+	u32 din_pol;
+	u32 din;
+	u32 irq_cause;
+	u32 irq_mask;
+	u32 irq_level;
+};
+
+/*
+ * functions
+ */
+unsigned int mvebu_sdram_bar(enum memory_bank bank);
+unsigned int mvebu_sdram_bs(enum memory_bank bank);
+void mvebu_sdram_size_adjust(enum memory_bank bank);
+int mvebu_mbus_probe(struct mbus_win windows[], int count);
+#endif /* __ASSEMBLY__ */
+#endif /* _ARMADA_XP_CPU_H */