nds32: Support AE3XX platform.

Support Andestech AE3xx platform: serial, timer device tree flow.

Signed-off-by: rick <rick@andestech.com>

4 files changed, 139 insertions, 4 deletions

diff --git a/arch/nds32/include/asm/arch-ae3xx/ae3xx.h b/arch/nds32/include/asm/arch-ae3xx/ae3xx.h
new file mode 100644
index 0000000000..b074e8489a
--- /dev/null
+++ b/arch/nds32/include/asm/arch-ae3xx/ae3xx.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 Andes Technology Corporation
+ * Nobuhiro Lin, Andes Technology Corporation <nobuhiro@andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __AE3XX_H
+#define __AE3XX_H
+
+/* Hardware register bases */
+
+/* Static Memory Controller (SRAM) */
+#define CONFIG_FTSMC020_BASE		0xe0400000
+/* DMA Controller */
+#define CONFIG_FTDMAC020_BASE		0xf0c00000
+/* AHB-to-APB Bridge */
+#define CONFIG_FTAPBBRG020S_01_BASE	0xf0000000
+/* Reserved */
+#define CONFIG_RESERVED_01_BASE		0xe0500000
+/* Reserved */
+#define CONFIG_RESERVED_02_BASE		0xf0800000
+/* Reserved */
+#define CONFIG_RESERVED_03_BASE		0xf0900000
+/* Ethernet */
+#define CONFIG_FTMAC100_BASE		0xe0100000
+/* Reserved */
+#define CONFIG_RESERVED_04_BASE		0xf1000000
+
+/* APB Device definitions */
+
+/* UART1 */
+#define CONFIG_FTUART010_01_BASE	0xf0200000
+/* UART2 */
+#define CONFIG_FTUART010_02_BASE	0xf0300000
+/* Counter/Timers */
+#define CONFIG_FTTMR010_BASE		0xf0400000
+/* Watchdog Timer */
+#define CONFIG_FTWDT010_BASE		0xf0500000
+/* Real Time Clock */
+#define CONFIG_FTRTC010_BASE		0xf0600000
+/* GPIO */
+#define CONFIG_FTGPIO010_BASE		0xf0700000
+/* I2C */
+#define CONFIG_FTIIC010_BASE		0xf0a00000
+/* SD Controller */
+#define CONFIG_FTSDC010_BASE		0xf0e00000
+
+/* The following address was not defined in Linux */
+
+/* Synchronous Serial Port Controller (SSP) 01 */
+#define CONFIG_FTSSP010_01_BASE		0xf0d00000
+#endif	/* __AE3XX_H */
diff --git a/arch/nds32/include/asm/bootm.h b/arch/nds32/include/asm/bootm.h
new file mode 100644
index 0000000000..6b10c078df
--- /dev/null
+++ b/arch/nds32/include/asm/bootm.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2013, Google Inc.
+ *
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef NDS32_BOOTM_H
+#define NDS32_BOOTM_H
+
+extern void udc_disconnect(void);
+
+#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
+		defined(CONFIG_CMDLINE_TAG) || \
+		defined(CONFIG_INITRD_TAG) || \
+		defined(CONFIG_SERIAL_TAG) || \
+		defined(CONFIG_REVISION_TAG)
+# define BOOTM_ENABLE_TAGS		1
+#else
+# define BOOTM_ENABLE_TAGS		0
+#endif
+
+#ifdef CONFIG_SETUP_MEMORY_TAGS
+# define BOOTM_ENABLE_MEMORY_TAGS	1
+#else
+# define BOOTM_ENABLE_MEMORY_TAGS	0
+#endif
+
+#ifdef CONFIG_CMDLINE_TAG
+ #define BOOTM_ENABLE_CMDLINE_TAG	1
+#else
+ #define BOOTM_ENABLE_CMDLINE_TAG	0
+#endif
+
+#ifdef CONFIG_INITRD_TAG
+ #define BOOTM_ENABLE_INITRD_TAG	1
+#else
+ #define BOOTM_ENABLE_INITRD_TAG	0
+#endif
+
+#ifdef CONFIG_SERIAL_TAG
+ #define BOOTM_ENABLE_SERIAL_TAG	1
+void get_board_serial(struct tag_serialnr *serialnr);
+#else
+ #define BOOTM_ENABLE_SERIAL_TAG	0
+static inline void get_board_serial(struct tag_serialnr *serialnr)
+{
+}
+#endif
+
+#ifdef CONFIG_REVISION_TAG
+ #define BOOTM_ENABLE_REVISION_TAG	1
+u32 get_board_rev(void);
+#else
+ #define BOOTM_ENABLE_REVISION_TAG	0
+static inline u32 get_board_rev(void)
+{
+	return 0;
+}
+#endif
+
+#endif
diff --git a/arch/nds32/include/asm/cache.h b/arch/nds32/include/asm/cache.h
index 9038821b48..7e9aac80ff 100644
--- a/arch/nds32/include/asm/cache.h
+++ b/arch/nds32/include/asm/cache.h
@@ -16,6 +16,7 @@ void	icache_disable(void);
 int	dcache_status(void);
 void	dcache_enable(void);
 void	dcache_disable(void);
+void cache_flush(void);
 
 #define DEFINE_GET_SYS_REG(reg) \
 	static inline unsigned long GET_##reg(void)		\
@@ -30,10 +31,24 @@ void	dcache_disable(void);
 enum cache_t {ICACHE, DCACHE};
 DEFINE_GET_SYS_REG(ICM_CFG);
 DEFINE_GET_SYS_REG(DCM_CFG);
-#define ICM_CFG_OFF_ISZ	6	/* I-cache line size */
-#define ICM_CFG_MSK_ISZ	(0x7UL << ICM_CFG_OFF_ISZ)
-#define DCM_CFG_OFF_DSZ	6	/* D-cache line size */
-#define DCM_CFG_MSK_DSZ	(0x7UL << DCM_CFG_OFF_DSZ)
+/* I-cache sets (# of cache lines) per way */
+#define ICM_CFG_OFF_ISET	0
+/* I-cache ways */
+#define ICM_CFG_OFF_IWAY	3
+#define ICM_CFG_MSK_ISET	(0x7 << ICM_CFG_OFF_ISET)
+#define ICM_CFG_MSK_IWAY	(0x7 << ICM_CFG_OFF_IWAY)
+/* D-cache sets (# of cache lines) per way */
+#define DCM_CFG_OFF_DSET	0
+/* D-cache ways */
+#define DCM_CFG_OFF_DWAY	3
+#define DCM_CFG_MSK_DSET	(0x7 << DCM_CFG_OFF_DSET)
+#define DCM_CFG_MSK_DWAY	(0x7 << DCM_CFG_OFF_DWAY)
+/* I-cache line size */
+#define ICM_CFG_OFF_ISZ	6
+#define ICM_CFG_MSK_ISZ		(0x7UL << ICM_CFG_OFF_ISZ)
+/* D-cache line size */
+#define DCM_CFG_OFF_DSZ	6
+#define DCM_CFG_MSK_DSZ		(0x7UL << DCM_CFG_OFF_DSZ)
 
 /*
  * The current upper bound for NDS32 L1 data cache line sizes is 32 bytes.
diff --git a/arch/nds32/include/asm/mach-types.h b/arch/nds32/include/asm/mach-types.h
index 1959d7eb0b..99904f9ed5 100644
--- a/arch/nds32/include/asm/mach-types.h
+++ b/arch/nds32/include/asm/mach-types.h
@@ -13,6 +13,7 @@ extern unsigned int __machine_arch_type;
 
 /* see arch/arm/kernel/arch.c for a description of these */
 #define MACH_TYPE_ADPAG101P            1
+#define MACH_TYPE_ADPAE3XX	2
 
 #ifdef CONFIG_ARCH_ADPAG101P
 # ifdef machine_arch_type