[PATCH 0/7] Add basic support for Telechips TCC8xxx SoCs

[PATCH 0/7] Add basic support for Telechips TCC8xxx SoCs

[Hans J. Koch]

Telechips' TCC8xxx SoCs are ARM9-based processors, mainly for automotive and
multimedia applications. I'll reply to this mail with a series of 7 patches
that implement basic support for these chips.

These patches were tested on a Telechips-TCC8000-SDK development board.
Support for this board is also included.

I've also got drivers for some on-chip peripherals (UART, MMC, NAND, USB host
and gadget). I'll post these in a second step. Board support is already
prepared to use them.

@Russell: Do you want me to post the drivers on linux-arm-kernel, or on the
appropriate subsystem mailing list?

The whole tree is also available here:

git://git.linutronix.de/users/hjk/linux-tcc.git

The "devel" branch contains all I've got ATM, including experimental stuff not
yet ready for mainline. 

@Russell: As soon as the review process stabilizes, I can set up a "for-rmk"
branch, if that's what you wish.

Thanks,
Hans

[PATCH 01/07] Introduce plat-tcc

[Hans J. Koch]

This patch introduces support for the tcc platform by creating an
arch/arm/plat-tcc and arch/arm/mach-tcc8k directories and adding
basic include files plus Kconfig and Makefile.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/Kconfig                             |   11 +
 arch/arm/Makefile                            |    2 +
 arch/arm/mach-tcc8k/Kconfig                  |    5 +
 arch/arm/plat-tcc/Kconfig                    |   20 +
 arch/arm/plat-tcc/Makefile                   |    3 +
 arch/arm/plat-tcc/include/mach/debug-macro.S |   33 +
 arch/arm/plat-tcc/include/mach/entry-macro.S |   69 ++
 arch/arm/plat-tcc/include/mach/hardware.h    |   43 ++
 arch/arm/plat-tcc/include/mach/memory.h      |   29 +
 arch/arm/plat-tcc/include/mach/system.h      |   31 +
 arch/arm/plat-tcc/include/mach/tcc8k-regs.h  |  855 ++++++++++++++++++++++++++
 arch/arm/plat-tcc/include/mach/uncompress.h  |   32 +
 arch/arm/plat-tcc/include/mach/vmalloc.h     |   11 +
 arch/arm/plat-tcc/system.c                   |   24 +
 14 files changed, 1168 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/Kconfig
 create mode 100644 arch/arm/plat-tcc/Kconfig
 create mode 100644 arch/arm/plat-tcc/Makefile
 create mode 100644 arch/arm/plat-tcc/include/mach/debug-macro.S
 create mode 100644 arch/arm/plat-tcc/include/mach/entry-macro.S
 create mode 100644 arch/arm/plat-tcc/include/mach/hardware.h
 create mode 100644 arch/arm/plat-tcc/include/mach/memory.h
 create mode 100644 arch/arm/plat-tcc/include/mach/system.h
 create mode 100644 arch/arm/plat-tcc/include/mach/tcc8k-regs.h
 create mode 100644 arch/arm/plat-tcc/include/mach/uncompress.h
 create mode 100644 arch/arm/plat-tcc/include/mach/vmalloc.h
 create mode 100644 arch/arm/plat-tcc/system.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c5408bf..8b9429c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -723,6 +723,15 @@ config ARCH_SHARK
 	  Support for the StrongARM based Digital DNARD machine, also known
 	  as "Shark" (<http://www.shark-linux.de/shark.html>).
 
+config ARCH_TCC_926
+	bool "Telechips TCC ARM926-based systems"
+	select CPU_ARM926T
+	select HAVE_CLK
+	select COMMON_CLKDEV
+	select GENERIC_CLOCKEVENTS
+	help
+	  Support for Telechips TCC ARM926-based systems.
+
 config ARCH_LH7A40X
 	bool "Sharp LH7A40X"
 	select CPU_ARM922T
@@ -887,6 +896,8 @@ source "arch/arm/plat-s3c24xx/Kconfig"
 source "arch/arm/plat-s5p/Kconfig"
 source "arch/arm/plat-s5pc1xx/Kconfig"
 
+source "arch/arm/plat-tcc/Kconfig"
+
 if ARCH_S3C2410
 source "arch/arm/mach-s3c2400/Kconfig"
 source "arch/arm/mach-s3c2410/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ed820e7..9656799 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -172,6 +172,7 @@ machine-$(CONFIG_ARCH_SHARK)		:= shark
 machine-$(CONFIG_ARCH_SHMOBILE) 	:= shmobile
 machine-$(CONFIG_ARCH_STMP378X)		:= stmp378x
 machine-$(CONFIG_ARCH_STMP37XX)		:= stmp37xx
+machine-$(CONFIG_ARCH_TCC8K)		:= tcc8k
 machine-$(CONFIG_ARCH_U300)		:= u300
 machine-$(CONFIG_ARCH_U8500)		:= ux500
 machine-$(CONFIG_ARCH_VERSATILE)	:= versatile
@@ -192,6 +193,7 @@ plat-$(CONFIG_PLAT_PXA)		:= pxa
 plat-$(CONFIG_PLAT_S3C24XX)	:= s3c24xx samsung
 plat-$(CONFIG_PLAT_S5PC1XX)	:= s5pc1xx samsung
 plat-$(CONFIG_PLAT_S5P)		:= s5p samsung
+plat-$(CONFIG_ARCH_TCC_926)	:= tcc
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/mach-tcc8k/Kconfig b/arch/arm/mach-tcc8k/Kconfig
new file mode 100644
index 0000000..ec7f71b
--- /dev/null
+++ b/arch/arm/mach-tcc8k/Kconfig
@@ -0,0 +1,5 @@
+if ARCH_TCC8K
+
+comment "TCC8000 systems:"
+
+endif
diff --git a/arch/arm/plat-tcc/Kconfig b/arch/arm/plat-tcc/Kconfig
new file mode 100644
index 0000000..1bf4995
--- /dev/null
+++ b/arch/arm/plat-tcc/Kconfig
@@ -0,0 +1,20 @@
+if ARCH_TCC_926
+
+menu "Telechips ARM926-based CPUs"
+
+choice
+	prompt "Telechips CPU type:"
+	default ARCH_TCC8K
+
+config ARCH_TCC8K
+	bool TCC8000
+	select USB_ARCH_HAS_OHCI
+	help
+	  Support for Telechips TCC8000 systems
+
+endchoice
+
+source "arch/arm/mach-tcc8k/Kconfig"
+
+endmenu
+endif
diff --git a/arch/arm/plat-tcc/Makefile b/arch/arm/plat-tcc/Makefile
new file mode 100644
index 0000000..3f2e4fe
--- /dev/null
+++ b/arch/arm/plat-tcc/Makefile
@@ -0,0 +1,3 @@
+# "Telechips Platform Common Modules"
+
+obj-y := system.o
diff --git a/arch/arm/plat-tcc/include/mach/debug-macro.S b/arch/arm/plat-tcc/include/mach/debug-macro.S
new file mode 100644
index 0000000..9753784
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/debug-macro.S
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 1994-1999 Russell King
+ * Copyright (C) 2008-2009 Telechips
+ * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * 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.
+ *
+ */
+
+		.macro	addruart,rx,tmp
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0x90000000	@ physical base address
+		movne	\rx, #0xF1000000	@ virtual base
+		orr	\rx, \rx, #0x00007000	@ UART0
+		.endm
+
+		.macro	senduart,rd,rx
+		strb	\rd, [\rx, #0x44]
+		.endm
+
+		.macro	waituart,rd,rx
+		.endm
+
+		.macro	busyuart,rd,rx
+1001:
+		ldr \rd, [\rx, #0x14]
+		tst \rd, #0x20
+
+		beq 1001b
+		.endm
diff --git a/arch/arm/plat-tcc/include/mach/entry-macro.S b/arch/arm/plat-tcc/include/mach/entry-macro.S
new file mode 100644
index 0000000..6099b6a
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/entry-macro.S
@@ -0,0 +1,69 @@
+/*
+ * include/asm-arm/arch-tcc83x/entry-macro.S
+ *
+ * Author : <linux@telechips.com>
+ * Created: June 10, 2008
+ * Description: Low-level IRQ helper macros for Telechips-based platforms
+ *
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+
+	.macro	disable_fiq
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+		ldr	\base, =0xF2003000 @ base address of PIC registers
+
+		@@ read MREQ register of PIC0
+
+		mov	\irqnr, #0
+		ldr	\irqstat, [\base, #0x00000014 ]	@ lower 32 interrupts
+		cmp	\irqstat, #0
+		bne	1001f
+
+		@@ read MREQ register of PIC1
+
+		ldr	\irqstat, [\base, #0x00000094]	@ upper 32 interrupts
+		cmp	\irqstat, #0
+		beq	1002f
+		mov	\irqnr, #0x20
+
+1001:
+		movs	\tmp, \irqstat, lsl #16
+		movne	\irqstat, \tmp
+		addeq	\irqnr, \irqnr, #16
+
+		movs	\tmp, \irqstat, lsl #8
+		movne	\irqstat, \tmp
+		addeq	\irqnr, \irqnr, #8
+
+		movs	\tmp, \irqstat, lsl #4
+		movne	\irqstat, \tmp
+		addeq	\irqnr, \irqnr, #4
+
+		movs	\tmp, \irqstat, lsl #2
+		movne	\irqstat, \tmp
+		addeq	\irqnr, \irqnr, #2
+
+		movs	\tmp, \irqstat, lsl #1
+		addeq	\irqnr, \irqnr, #1
+		orrs	\base, \base, #1
+1002:
+		@@ exit here, Z flag unset if IRQ
+
+	.endm
+
diff --git a/arch/arm/plat-tcc/include/mach/hardware.h b/arch/arm/plat-tcc/include/mach/hardware.h
new file mode 100644
index 0000000..e70d126
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/hardware.h
@@ -0,0 +1,43 @@
+/*
+ * Author: RidgeRun, Inc. Greg Lonnon <glonnon@ridgerun.com>
+ * Reorganized for Linux-2.6 by Tony Lindgren <tony@atomide.com>
+ *                          and Dirk Behme <dirk.behme@de.bosch.com>
+ * Rewritten by:    <linux@telechips.com>
+ * Description: Hardware definitions for TCC8300 processors and boards
+ *
+ * Copyright (C) 2001 RidgeRun, Inc.
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * Modifications for mainline (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GNU Pulic License version 2.
+ */
+
+#ifndef __ASM_ARCH_TCC_HARDWARE_H
+#define __ASM_ARCH_TCC_HARDWARE_H
+
+#include <asm/sizes.h>
+#ifndef __ASSEMBLER__
+#include <asm/types.h>
+#endif
+#include <mach/io.h>
+
+/*
+ * ----------------------------------------------------------------------------
+ * Clocks
+ * ----------------------------------------------------------------------------
+ */
+#define CLKGEN_REG_BASE		0xfffece00
+#define ARM_CKCTL		(CLKGEN_REG_BASE + 0x0)
+#define ARM_IDLECT1		(CLKGEN_REG_BASE + 0x4)
+#define ARM_IDLECT2		(CLKGEN_REG_BASE + 0x8)
+#define ARM_EWUPCT		(CLKGEN_REG_BASE + 0xC)
+#define ARM_RSTCT1		(CLKGEN_REG_BASE + 0x10)
+#define ARM_RSTCT2		(CLKGEN_REG_BASE + 0x14)
+#define ARM_SYSST		(CLKGEN_REG_BASE + 0x18)
+#define ARM_IDLECT3		(CLKGEN_REG_BASE + 0x24)
+
+/* DPLL control registers */
+#define DPLL_CTL		0xfffecf00
+
+#endif	/* __ASM_ARCH_TCC_HARDWARE_H */
diff --git a/arch/arm/plat-tcc/include/mach/memory.h b/arch/arm/plat-tcc/include/mach/memory.h
new file mode 100644
index 0000000..3acc680
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/memory.h
@@ -0,0 +1,29 @@
+/*
+ * Based on:    linux/include/asm-arm/arch-intergrator/memory.h
+ * Author:  Greg Lonnon <glonnon@ridgerun.com>
+ * Rewritten by: <linux@telechips.com>
+ * Modified: June 10, 2008
+ * Description: Memory map for TCC8300
+ *
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * Licensed under the terms of the GPL v2.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET		UL(0x20000000)
+
+#define __virt_to_bus(x)	__virt_to_phys(x)
+#define __bus_to_virt(x)	__phys_to_virt(x)
+#define __pfn_to_bus(x)		__pfn_to_phys(x)
+#define __bus_to_pfn(x)		__phys_to_pfn(x)
+
+#endif
+
diff --git a/arch/arm/plat-tcc/include/mach/system.h b/arch/arm/plat-tcc/include/mach/system.h
new file mode 100644
index 0000000..909e603
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/system.h
@@ -0,0 +1,31 @@
+/*
+ * Author: <linux@telechips.com>
+ * Created: June 10, 2008
+ * Description: LINUX SYSTEM FUNCTIONS for TCC83x
+ *
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * Licensed under the terms of the GPL v2.
+ *
+ */
+
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+#include <linux/clk.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+extern void plat_tcc_reboot(void);
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode, const char *cmd)
+{
+	plat_tcc_reboot();
+}
+
+#endif
diff --git a/arch/arm/plat-tcc/include/mach/tcc8k-regs.h b/arch/arm/plat-tcc/include/mach/tcc8k-regs.h
new file mode 100644
index 0000000..67f866c
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/tcc8k-regs.h
@@ -0,0 +1,855 @@
+/*
+ * Telechips TCC8000 register definitions
+ *
+ * (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GPLv2.
+ */
+
+#ifndef TCC8K_REGS_H
+#define TCC8K_REGS_H
+
+#include <linux/types.h>
+
+#define EXT_SDRAM_BASE		0x20000000
+#define INT_SRAM_BASE		0x30000000
+#define INT_SRAM_SIZE		SZ_32K
+#define CS0_BASE		0x40000000
+#define CS1_BASE		0x50000000
+#define CS1_SIZE		SZ_64K
+#define CS2_BASE		0x60000000
+#define CS3_BASE		0x70000000
+#define AHB_PERI_BASE		0x80000000
+#define AHB_PERI_SIZE		SZ_64K
+#define APB0_PERI_BASE		0x90000000
+#define APB0_PERI_SIZE		SZ_128K
+#define APB1_PERI_BASE		0x98000000
+#define APB1_PERI_SIZE		SZ_128K
+#define DATA_TCM_BASE		0xa0000000
+#define DATA_TCM_SIZE		SZ_8K
+#define EXT_MEM_CTRL_BASE	0xf0000000
+#define EXT_MEM_CTRL_SIZE	SZ_4K
+
+#define CS1_BASE_VIRT		0xf7000000
+#define AHB_PERI_BASE_VIRT	0xf4000000
+#define APB0_PERI_BASE_VIRT	0xf1000000
+#define APB1_PERI_BASE_VIRT	0xf2000000
+#define EXT_MEM_CTRL_BASE_VIRT	0xf3000000
+#define INT_SRAM_BASE_VIRT	0xf5000000
+#define DATA_TCM_BASE_VIRT	0xf6000000
+
+#define __REG(x)     (*((volatile u32 *)(x)))
+
+/* USB Device Controller Registers */
+#define UDC_BASE	(AHB_PERI_BASE_VIRT + 0x8000)
+#define UDC_BASE_PHYS	(AHB_PERI_BASE + 0x8000)
+
+#define UDC_IR_OFFS		0x00
+#define UDC_EIR_OFFS		0x04
+#define UDC_EIER_OFFS		0x08
+#define UDC_FAR_OFFS		0x0c
+#define UDC_FNR_OFFS		0x10
+#define UDC_EDR_OFFS		0x14
+#define UDC_RT_OFFS		0x18
+#define UDC_SSR_OFFS		0x1c
+#define UDC_SCR_OFFS		0x20
+#define UDC_EP0SR_OFFS		0x24
+#define UDC_EP0CR_OFFS		0x28
+
+#define UDC_ESR_OFFS		0x2c
+#define UDC_ECR_OFFS		0x30
+#define UDC_BRCR_OFFS		0x34
+#define UDC_BWCR_OFFS		0x38
+#define UDC_MPR_OFFS		0x3c
+#define UDC_DCR_OFFS		0x40
+#define UDC_DTCR_OFFS		0x44
+#define UDC_DFCR_OFFS		0x48
+#define UDC_DTTCR1_OFFS		0x4c
+#define UDC_DTTCR2_OFFS		0x50
+#define UDC_ESR2_OFFS		0x54
+
+#define UDC_SCR2_OFFS		0x58
+#define UDC_EP0BUF_OFFS		0x60
+#define UDC_EP1BUF_OFFS		0x64
+#define UDC_EP2BUF_OFFS		0x68
+#define UDC_EP3BUF_OFFS		0x6c
+#define UDC_PLICR_OFFS		0xa0
+#define UDC_PCR_OFFS		0xa4
+
+#define UDC_UPCR0_OFFS		0xc8
+#define UDC_UPCR1_OFFS		0xcc
+#define UDC_UPCR2_OFFS		0xd0
+#define UDC_UPCR3_OFFS		0xd4
+
+/* Bits in UDC_EIR */
+#define UDC_EIR_EP0I		(1 << 0)
+#define UDC_EIR_EP1I		(1 << 1)
+#define UDC_EIR_EP2I		(1 << 2)
+#define UDC_EIR_EP3I		(1 << 3)
+#define UDC_EIR_EPI_MASK	0x0f
+
+/* Bits in UDC_EIER */
+#define UDC_EIER_EP0IE		(1 << 0)
+#define UDC_EIER_EP1IE		(1 << 1)
+#define UDC_EIER_EP2IE		(1 << 2)
+#define UDC_EIER_EP3IE		(1 << 3)
+
+/* Bits in UDC_FNR */
+#define UDC_FNR_FN_MASK		0x7ff
+#define UDC_FNR_SM		(1 << 13)
+#define UDC_FNR_FTL		(1 << 14)
+
+/* Bits in UDC_SSR */
+#define UDC_SSR_HFRES		(1 << 0)
+#define UDC_SSR_HFSUSP		(1 << 1)
+#define UDC_SSR_HFRM		(1 << 2)
+#define UDC_SSR_SDE		(1 << 3)
+#define UDC_SSR_HSP		(1 << 4)
+#define UDC_SSR_DM		(1 << 5)
+#define UDC_SSR_DP		(1 << 6)
+#define UDC_SSR_TBM		(1 << 7)
+#define UDC_SSR_VBON		(1 << 8)
+#define UDC_SSR_VBOFF		(1 << 9)
+#define UDC_SSR_EOERR		(1 << 10)
+#define UDC_SSR_DCERR		(1 << 11)
+#define UDC_SSR_TCERR		(1 << 12)
+#define UDC_SSR_BSERR		(1 << 13)
+#define UDC_SSR_TMERR		(1 << 14)
+#define UDC_SSR_BAERR		(1 << 15)
+
+/* Bits in UDC_SCR */
+#define UDC_SCR_HRESE		(1 << 0)
+#define UDC_SCR_HSSPE		(1 << 1)
+#define UDC_SCR_RRDE		(1 << 5)
+#define UDC_SCR_SPDEN		(1 << 6)
+#define UDC_SCR_DIEN		(1 << 12)
+
+/* Bits in UDC_EP0SR */
+#define UDC_EP0SR_RSR		(1 << 0)
+#define UDC_EP0SR_TST		(1 << 1)
+#define UDC_EP0SR_SHT		(1 << 4)
+#define UDC_EP0SR_LWO		(1 << 6)
+
+/* Bits in UDC_EP0CR */
+#define UDC_EP0CR_ESS		(1 << 1)
+
+/* Bits in UDC_ESR */
+#define UDC_ESR_RPS		(1 << 0)
+#define UDC_ESR_TPS		(1 << 1)
+#define UDC_ESR_LWO		(1 << 4)
+#define UDC_ESR_FFS		(1 << 6)
+
+/* Bits in UDC_ECR */
+#define UDC_ECR_ESS		(1 << 1)
+#define UDC_ECR_CDP		(1 << 2)
+
+#define UDC_ECR_FLUSH		(1 << 6)
+#define UDC_ECR_DUEN		(1 << 7)
+
+/* Bits in UDC_UPCR0 */
+#define UDC_UPCR0_VBD		(1 << 1)
+#define UDC_UPCR0_VBDS		(1 << 6)
+#define UDC_UPCR0_RCD_12	(0x0 << 9)
+#define UDC_UPCR0_RCD_24	(0x1 << 9)
+#define UDC_UPCR0_RCD_48	(0x2 << 9)
+#define UDC_UPCR0_RCS_EXT	(0x1 << 11)
+#define UDC_UPCR0_RCS_XTAL	(0x0 << 11)
+
+/* Bits in UDC_UPCR1 */
+#define UDC_UPCR1_CDT(x)	((x) << 0)
+#define UDC_UPCR1_OTGT(x)	((x) << 3)
+#define UDC_UPCR1_SQRXT(x)	((x) << 8)
+#define UDC_UPCR1_TXFSLST(x)	((x) << 12)
+
+/* Bits in UDC_UPCR2 */
+#define UDC_UPCR2_TP		(1 << 0)
+#define UDC_UPCR2_TXRT(x)	((x) << 2)
+#define UDC_UPCR2_TXVRT(x)	((x) << 5)
+#define UDC_UPCR2_OPMODE(x)	((x) << 9)
+#define UDC_UPCR2_XCVRSEL(x)	((x) << 12)
+#define UDC_UPCR2_TM		(1 << 14)
+
+/* USB Host Controller registers */
+#define USBH0_BASE	(AHB_PERI_BASE_VIRT + 0xb000)
+#define USBH1_BASE	(AHB_PERI_BASE_VIRT + 0xb800)
+
+#define OHCI_INT_ENABLE_OFFS	0x10
+
+#define RH_DESCRIPTOR_A_OFFS	0x48
+#define RH_DESCRIPTOR_B_OFFS	0x4c
+
+#define USBHTCFG0_OFFS		0x100
+#define USBHHCFG0_OFFS		0x104
+#define USBHHCFG1_OFFS		0x104
+
+/* DMA controller registers */
+#define DMAC0_BASE	(AHB_PERI_BASE + 0x4000)
+#define DMAC1_BASE	(AHB_PERI_BASE + 0xa000)
+#define DMAC2_BASE	(AHB_PERI_BASE + 0x4800)
+#define DMAC3_BASE	(AHB_PERI_BASE + 0xa800)
+
+#define DMAC_CH_OFFSET(ch)	(ch * 0x30)
+
+#define ST_SADR_OFFS		0x00
+#define SPARAM_OFFS		0x04
+#define C_SADR_OFFS		0x0c
+#define ST_DADR_OFFS		0x10
+#define DPARAM_OFFS		0x14
+#define C_DADR_OFFS		0x1c
+#define HCOUNT_OFFS		0x20
+#define CHCTRL_OFFS		0x24
+#define RPTCTRL_OFFS		0x28
+#define EXTREQ_A_OFFS		0x2c
+
+/* Bits in CHCTRL register */
+#define CHCTRL_EN		(1 << 0)
+
+#define CHCTRL_IEN		(1 << 2)
+#define CHCTRL_FLAG		(1 << 3)
+#define CHCTRL_WSIZE8		(0 << 4)
+#define CHCTRL_WSIZE16		(1 << 4)
+#define CHCTRL_WSIZE32		(2 << 4)
+
+#define CHCTRL_BSIZE1		(0 << 6)
+#define CHCTRL_BSIZE2		(1 << 6)
+#define CHCTRL_BSIZE4		(2 << 6)
+#define CHCTRL_BSIZE8		(3 << 6)
+
+#define CHCTRL_TYPE_SINGLE_E	(0 << 8)
+#define CHCTRL_TYPE_HW		(1 << 8)
+#define CHCTRL_TYPE_SW		(2 << 8)
+#define CHCTRL_TYPE_SINGLE_L	(3 << 8)
+
+#define CHCTRL_BST		(1 << 10)
+
+/* Use DMA controller 0, channel 2 for USB */
+#define USB_DMA_BASE		(DMAC0_BASE + DMAC_CH_OFFSET(2))
+
+/* NAND flash controller registers */
+#define NFC_BASE	(AHB_PERI_BASE_VIRT + 0xd000)
+#define NFC_BASE_PHYS	(AHB_PERI_BASE + 0xd000)
+
+#define NFC_CMD_OFFS		0x00
+#define NFC_LADDR_OFFS		0x04
+#define NFC_BADDR_OFFS		0x08
+#define NFC_SADDR_OFFS		0x0c
+#define NFC_WDATA_OFFS		0x10
+#define NFC_LDATA_OFFS		0x20
+#define NFC_SDATA_OFFS		0x40
+#define NFC_CTRL_OFFS		0x50
+#define NFC_PSTART_OFFS		0x54
+#define NFC_RSTART_OFFS		0x58
+#define NFC_DSIZE_OFFS		0x5c
+#define NFC_IREQ_OFFS		0x60
+#define NFC_RST_OFFS		0x64
+#define NFC_CTRL1_OFFS		0x68
+#define NFC_MDATA_OFFS		0x70
+
+#define NFC_WDATA_PHYS_ADDR	(NFC_BASE_PHYS + NFC_WDATA_OFFS)
+
+/* Bits in NFC_CTRL */
+#define NFC_CTRL_BHLD_MASK	(0xf << 0)
+#define NFC_CTRL_BPW_MASK	(0xf << 4)
+#define NFC_CTRL_BSTP_MASK	(0xf << 8)
+#define NFC_CTRL_CADDR_MASK	(0x7 << 12)
+#define NFC_CTRL_CADDR_1	(0x0 << 12)
+#define NFC_CTRL_CADDR_2	(0x1 << 12)
+#define NFC_CTRL_CADDR_3	(0x2 << 12)
+#define NFC_CTRL_CADDR_4	(0x3 << 12)
+#define NFC_CTRL_CADDR_5	(0x4 << 12)
+#define NFC_CTRL_MSK		(1 << 15)
+#define NFC_CTRL_PSIZE256	(0 << 16)
+#define NFC_CTRL_PSIZE512	(1 << 16)
+#define NFC_CTRL_PSIZE1024	(2 << 16)
+#define NFC_CTRL_PSIZE2048	(3 << 16)
+#define NFC_CTRL_PSIZE4096	(4 << 16)
+#define NFC_CTRL_PSIZE_MASK	(7 << 16)
+#define NFC_CTRL_BSIZE1		(0 << 19)
+#define NFC_CTRL_BSIZE2		(1 << 19)
+#define NFC_CTRL_BSIZE4		(2 << 19)
+#define NFC_CTRL_BSIZE8		(3 << 19)
+#define NFC_CTRL_BSIZE_MASK	(3 << 19)
+#define NFC_CTRL_RDY		(1 << 21)
+#define NFC_CTRL_CS0SEL		(1 << 22)
+#define NFC_CTRL_CS1SEL		(1 << 23)
+#define NFC_CTRL_CS2SEL		(1 << 24)
+#define NFC_CTRL_CS3SEL		(1 << 25)
+#define NFC_CTRL_CSMASK		(0xf << 22)
+#define NFC_CTRL_BW		(1 << 26)
+#define NFC_CTRL_FS		(1 << 27)
+#define NFC_CTRL_DEN		(1 << 28)
+#define NFC_CTRL_READ_IEN	(1 << 29)
+#define NFC_CTRL_PROG_IEN	(1 << 30)
+#define NFC_CTRL_RDY_IEN	(1 << 31)
+
+/* Bits in NFC_IREQ */
+#define NFC_IREQ_IRQ0		(1 << 0)
+#define NFC_IREQ_IRQ1		(1 << 1)
+#define NFC_IREQ_IRQ2		(1 << 2)
+
+#define NFC_IREQ_FLAG0		(1 << 4)
+#define NFC_IREQ_FLAG1		(1 << 5)
+#define NFC_IREQ_FLAG2		(1 << 6)
+
+/* MMC controller registers */
+#define MMC0_BASE	(AHB_PERI_BASE_VIRT + 0xe000)
+#define MMC1_BASE	(AHB_PERI_BASE_VIRT + 0xe800)
+
+/* UART registers */
+
+#define UART0_BASE	(APB0_PERI_BASE_VIRT + 0x07000)
+#define UART0_BASE_PHYS	(APB0_PERI_BASE + 0x07000)
+#define UART1_BASE	(APB0_PERI_BASE_VIRT + 0x08000)
+#define UART1_BASE_PHYS	(APB0_PERI_BASE + 0x08000)
+#define UART2_BASE	(APB0_PERI_BASE_VIRT + 0x09000)
+#define UART2_BASE_PHYS	(APB0_PERI_BASE + 0x09000)
+#define UART3_BASE	(APB0_PERI_BASE_VIRT + 0x0a000)
+#define UART3_BASE_PHYS	(APB0_PERI_BASE + 0x0a000)
+#define UART4_BASE	(APB0_PERI_BASE_VIRT + 0x15000)
+#define UART4_BASE_PHYS	(APB0_PERI_BASE + 0x15000)
+
+#define UART_BASE	UART0_BASE
+#define UART_BASE_PHYS	UART0_BASE_PHYS
+
+#define UART_RBR_OFFS		0x00
+#define UART_THR_OFFS		0x00
+#define UART_DLL_OFFS		0x00
+#define UART_IER_OFFS		0x04
+#define UART_DLM_OFFS		0x04
+#define UART_IIR_OFFS		0x08
+#define UART_FCR_OFFS		0x08
+#define UART_LCR_OFFS		0x0c
+#define UART_MCR_OFFS		0x10
+#define UART_LSR_OFFS		0x14
+#define UART_MSR_OFFS		0x18
+#define UART_SCR_OFFS		0x1c
+#define UART_AFT_OFFS		0x20
+#define UART_UCR_OFFS		0x24
+#define UART_SRBR_OFFS		0x40
+#define UART_STHR_OFFS		0x44
+#define UART_SDLL_OFFS		0x48
+#define UART_SDLM_OFFS		0x4c
+#define UART_SIER_OFFS		0x50
+#define UART_SCCR_OFFS		0x60
+#define UART_STC_OFFS		0x64
+#define UART_IRCFG_OFFS		0x80
+
+/* Bits in UART_LCR */
+#define UART_LCR_DLAB	(1 << 7)
+#define UART_LCR_SB	(1 << 6)
+#define UART_LCR_SP	(1 << 5)
+#define UART_LCR_EPS	(1 << 4)
+#define UART_LCR_PEN	(1 << 3)
+#define UART_LCR_STB	(1 << 2)
+#define UART_LCR_WLS_5	(0 << 0)
+#define UART_LCR_WLS_6	(1 << 0)
+#define UART_LCR_WLS_7	(2 << 0)
+#define UART_LCR_WLS_8	(3 << 0)
+
+/* Bits in UART_FCR */
+#define UART_FCR_RXT_1	(0 << 6)
+#define UART_FCR_RXT_4	(1 << 6)
+#define UART_FCR_RXT_8	(2 << 6)
+#define UART_FCR_RXT_14	(3 << 6)
+#define UART_FCR_TXT_16 (0 << 4)
+#define UART_FCR_TXT_8	(1 << 4)
+#define UART_FCR_TXT_4	(2 << 4)
+#define UART_FCR_TXT_1	(3 << 4)
+#define UART_FCR_DRTE	(1 << 3)
+#define UART_FCR_TXFR	(1 << 2)
+#define UART_FCR_RXFR	(1 << 1)
+#define UART_FCR_FE	(1 << 0)
+
+/* Bits in UART_LSR */
+#define UART_LSR_ERF	(1 << 7)
+#define UART_LSR_TEMT	(1 << 6)
+#define UART_LSR_THRE	(1 << 5)
+#define UART_LSR_BI	(1 << 4)
+#define UART_LSR_FE	(1 << 3)
+#define UART_LSR_PE	(1 << 2)
+#define UART_LSR_OE	(1 << 1)
+#define UART_LSR_DR	(1 << 0)
+
+/* ECC controller */
+#define ECC_CTR_BASE	(APB0_PERI_BASE_VIRT + 0xd000)
+
+#define ECC_CTRL_OFFS		0x00
+#define ECC_BASE_OFFS		0x04
+#define ECC_MASK_OFFS		0x08
+#define ECC_CLEAR_OFFS		0x0c
+#define ECC4_0_OFFS		0x10
+#define ECC4_1_OFFS		0x14
+
+#define ECC_EADDR0_OFFS		0x50
+
+#define ECC_ERRNUM_OFFS		0x90
+#define ECC_IREQ_OFFS		0x94
+
+/* Bits in ECC_CTRL */
+#define ECC_CTRL_ECC4_DIEN	(1 << 28)
+#define ECC_CTRL_ECC8_DIEN	(1 << 29)
+#define ECC_CTRL_ECC12_DIEN	(1 << 30)
+#define ECC_CTRL_ECC_DISABLE	0x0
+#define ECC_CTRL_ECC_SLC_ENC	0x8
+#define ECC_CTRL_ECC_SLC_DEC	0x9
+#define ECC_CTRL_ECC4_ENC	0xa
+#define ECC_CTRL_ECC4_DEC	0xb
+#define ECC_CTRL_ECC8_ENC	0xc
+#define ECC_CTRL_ECC8_DEC	0xd
+#define ECC_CTRL_ECC12_ENC	0xe
+#define ECC_CTRL_ECC12_DEC	0xf
+
+/* Bits in ECC_IREQ */
+#define ECC_IREQ_E4DI		(1 << 4)
+
+#define ECC_IREQ_E4DF		(1 << 20)
+#define ECC_IREQ_E4EF		(1 << 21)
+
+/* Interrupt controller */
+
+#define PIC0_BASE	(APB1_PERI_BASE_VIRT + 0x3000)
+#define PIC0_BASE_PHYS	(APB1_PERI_BASE + 0x3000)
+
+#define PIC0_IEN_OFFS		0x00
+#define PIC0_CREQ_OFFS		0x04
+#define PIC0_IREQ_OFFS		0x08
+#define PIC0_IRQSEL_OFFS	0x0c
+#define PIC0_SRC_OFFS		0x10
+#define PIC0_MREQ_OFFS		0x14
+#define PIC0_TSTREQ_OFFS	0x18
+#define PIC0_POL_OFFS		0x1c
+#define PIC0_IRQ_OFFS		0x20
+#define PIC0_FIQ_OFFS		0x24
+#define PIC0_MIRQ_OFFS		0x28
+#define PIC0_MFIQ_OFFS		0x2c
+#define PIC0_TMODE_OFFS		0x30
+#define PIC0_SYNC_OFFS		0x34
+#define PIC0_WKUP_OFFS		0x38
+#define PIC0_TMODEA_OFFS	0x3c
+#define PIC0_INTOEN_OFFS	0x40
+#define PIC0_MEN0_OFFS		0x44
+#define PIC0_MEN_OFFS		0x48
+
+#define PIC0_IEN		__REG(PIC0_BASE + PIC0_IEN_OFFS)
+#define PIC0_IEN_PHYS		__REG(PIC0_BASE_PHYS + PIC0_IEN_OFFS)
+#define PIC0_CREQ		__REG(PIC0_BASE + PIC0_CREQ_OFFS)
+#define PIC0_CREQ_PHYS		__REG(PIC0_BASE_PHYS + PIC0_CREQ_OFFS)
+#define PIC0_IREQ		__REG(PIC0_BASE + PIC0_IREQ_OFFS)
+#define PIC0_IRQSEL		__REG(PIC0_BASE + PIC0_IRQSEL_OFFS)
+#define PIC0_IRQSEL_PHYS	__REG(PIC0_BASE_PHYS + PIC0_IRQSEL_OFFS)
+#define PIC0_SRC		__REG(PIC0_BASE + PIC0_SRC_OFFS)
+#define PIC0_MREQ		__REG(PIC0_BASE + PIC0_MREQ_OFFS)
+#define PIC0_TSTREQ		__REG(PIC0_BASE + PIC0_TSTREQ_OFFS)
+#define PIC0_POL		__REG(PIC0_BASE + PIC0_POL_OFFS)
+#define PIC0_IRQ		__REG(PIC0_BASE + PIC0_IRQ_OFFS)
+#define PIC0_FIQ		__REG(PIC0_BASE + PIC0_FIQ_OFFS)
+#define PIC0_MIRQ		__REG(PIC0_BASE + PIC0_MIRQ_OFFS)
+#define PIC0_MFIQ		__REG(PIC0_BASE + PIC0_MFIQ_OFFS)
+#define PIC0_TMODE		__REG(PIC0_BASE + PIC0_TMODE_OFFS)
+#define PIC0_TMODE_PHYS		__REG(PIC0_BASE_PHYS + PIC0_TMODE_OFFS)
+#define PIC0_SYNC		__REG(PIC0_BASE + PIC0_SYNC_OFFS)
+#define PIC0_WKUP		__REG(PIC0_BASE + PIC0_WKUP_OFFS)
+#define PIC0_TMODEA		__REG(PIC0_BASE + PIC0_TMODEA_OFFS)
+#define PIC0_INTOEN		__REG(PIC0_BASE + PIC0_INTOEN_OFFS)
+#define PIC0_MEN0		__REG(PIC0_BASE + PIC0_MEN0_OFFS)
+#define PIC0_MEN		__REG(PIC0_BASE + PIC0_MEN_OFFS)
+
+#define PIC1_BASE	(APB1_PERI_BASE_VIRT + 0x3080)
+
+#define PIC1_IEN_OFFS		0x00
+#define PIC1_CREQ_OFFS		0x04
+#define PIC1_IREQ_OFFS		0x08
+#define PIC1_IRQSEL_OFFS	0x0c
+#define PIC1_SRC_OFFS		0x10
+#define PIC1_MREQ_OFFS		0x14
+#define PIC1_TSTREQ_OFFS	0x18
+#define PIC1_POL_OFFS		0x1c
+#define PIC1_IRQ_OFFS		0x20
+#define PIC1_FIQ_OFFS		0x24
+#define PIC1_MIRQ_OFFS		0x28
+#define PIC1_MFIQ_OFFS		0x2c
+#define PIC1_TMODE_OFFS		0x30
+#define PIC1_SYNC_OFFS		0x34
+#define PIC1_WKUP_OFFS		0x38
+#define PIC1_TMODEA_OFFS	0x3c
+#define PIC1_INTOEN_OFFS	0x40
+#define PIC1_MEN1_OFFS		0x44
+#define PIC1_MEN_OFFS		0x48
+
+#define PIC1_IEN	__REG(PIC1_BASE + PIC1_IEN_OFFS)
+#define PIC1_CREQ	__REG(PIC1_BASE + PIC1_CREQ_OFFS)
+#define PIC1_IREQ	__REG(PIC1_BASE + PIC1_IREQ_OFFS)
+#define PIC1_IRQSEL	__REG(PIC1_BASE + PIC1_IRQSEL_OFFS)
+#define PIC1_SRC	__REG(PIC1_BASE + PIC1_SRC_OFFS)
+#define PIC1_MREQ	__REG(PIC1_BASE + PIC1_MREQ_OFFS)
+#define PIC1_TSTREQ	__REG(PIC1_BASE + PIC1_TSTREQ_OFFS)
+#define PIC1_POL	__REG(PIC1_BASE + PIC1_POL_OFFS)
+#define PIC1_IRQ	__REG(PIC1_BASE + PIC1_IRQ_OFFS)
+#define PIC1_FIQ	__REG(PIC1_BASE + PIC1_FIQ_OFFS)
+#define PIC1_MIRQ	__REG(PIC1_BASE + PIC1_MIRQ_OFFS)
+#define PIC1_MFIQ	__REG(PIC1_BASE + PIC1_MFIQ_OFFS)
+#define PIC1_TMODE	__REG(PIC1_BASE + PIC1_TMODE_OFFS)
+#define PIC1_SYNC	__REG(PIC1_BASE + PIC1_SYNC_OFFS)
+#define PIC1_WKUP	__REG(PIC1_BASE + PIC1_WKUP_OFFS)
+#define PIC1_TMODEA	__REG(PIC1_BASE + PIC1_TMODEA_OFFS)
+#define PIC1_INTOEN	__REG(PIC1_BASE + PIC1_INTOEN_OFFS)
+#define PIC1_MEN1	__REG(PIC1_BASE + PIC1_MEN1_OFFS)
+#define PIC1_MEN	__REG(PIC1_BASE + PIC1_MEN_OFFS)
+
+/* Timer registers */
+#define TIMER_BASE		(APB1_PERI_BASE_VIRT + 0x4000)
+#define TIMER_BASE_PHYS		(APB1_PERI_BASE + 0x4000)
+
+#define TWDCFG_OFFS		0x70
+
+#define TC32EN_OFFS		0x80
+#define TC32LDV_OFFS		0x84
+#define TC32CMP0_OFFS		0x88
+#define TC32CMP1_OFFS		0x8c
+#define TC32PCNT_OFFS		0x90
+#define TC32MCNT_OFFS		0x94
+#define TC32IRQ_OFFS		0x98
+
+/* Bits in TC32EN */
+#define TC32EN_PRESCALE_MASK	0x00ffffff
+#define TC32EN_ENABLE		(1 << 24)
+#define TC32EN_LOADZERO		(1 << 25)
+#define TC32EN_STOPMODE		(1 << 26)
+#define TC32EN_LDM0		(1 << 28)
+#define TC32EN_LDM1		(1 << 29)
+
+/* Bits in TC32IRQ */
+#define TC32IRQ_MSTAT_MASK	0x0000001f
+#define TC32IRQ_RSTAT_MASK	(0x1f << 8)
+#define TC32IRQ_IRQEN0		(1 << 16)
+#define TC32IRQ_IRQEN1		(1 << 17)
+#define TC32IRQ_IRQEN2		(1 << 18)
+#define TC32IRQ_IRQEN3		(1 << 19)
+#define TC32IRQ_IRQEN4		(1 << 20)
+#define TC32IRQ_RSYNC		(1 << 30)
+#define TC32IRQ_IRQCLR		(1 << 31)
+
+/* GPIO registers */
+#define GPIOPD_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOPD_DAT_OFFS		0x00
+#define GPIOPD_DOE_OFFS		0x04
+#define GPIOPD_FS0_OFFS		0x08
+#define GPIOPD_FS1_OFFS		0x0c
+#define GPIOPD_FS2_OFFS		0x10
+#define GPIOPD_RPU_OFFS		0x30
+#define GPIOPD_RPD_OFFS		0x34
+#define GPIOPD_DV0_OFFS		0x38
+#define GPIOPD_DV1_OFFS		0x3c
+
+#define GPIOPS_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOPS_DAT_OFFS		0x40
+#define GPIOPS_DOE_OFFS		0x44
+#define GPIOPS_FS0_OFFS		0x48
+#define GPIOPS_FS1_OFFS		0x4c
+#define GPIOPS_FS2_OFFS		0x50
+#define GPIOPS_FS3_OFFS		0x54
+#define GPIOPS_RPU_OFFS		0x70
+#define GPIOPS_RPD_OFFS		0x74
+#define GPIOPS_DV0_OFFS		0x78
+#define GPIOPS_DV1_OFFS		0x7c
+
+#define GPIOPS_FS1_SDH0_BITS	0x000000ff
+#define GPIOPS_FS1_SDH1_BITS	0x0000ff00
+
+#define GPIOPU_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOPU_DAT_OFFS		0x80
+#define GPIOPU_DOE_OFFS		0x84
+#define GPIOPU_FS0_OFFS		0x88
+#define GPIOPU_FS1_OFFS		0x8c
+#define GPIOPU_FS2_OFFS		0x90
+#define GPIOPU_RPU_OFFS		0xb0
+#define GPIOPU_RPD_OFFS		0xb4
+#define GPIOPU_DV0_OFFS		0xb8
+#define GPIOPU_DV1_OFFS		0xbc
+
+#define GPIOPU_FS0_TXD0		(1 << 0)
+#define GPIOPU_FS0_RXD0		(1 << 1)
+#define GPIOPU_FS0_CTS0		(1 << 2)
+#define GPIOPU_FS0_RTS0		(1 << 3)
+#define GPIOPU_FS0_TXD1		(1 << 4)
+#define GPIOPU_FS0_RXD1		(1 << 5)
+#define GPIOPU_FS0_CTS1		(1 << 6)
+#define GPIOPU_FS0_RTS1		(1 << 7)
+#define GPIOPU_FS0_TXD2		(1 << 8)
+#define GPIOPU_FS0_RXD2		(1 << 9)
+#define GPIOPU_FS0_CTS2		(1 << 10)
+#define GPIOPU_FS0_RTS2		(1 << 11)
+#define GPIOPU_FS0_TXD3		(1 << 12)
+#define GPIOPU_FS0_RXD3		(1 << 13)
+#define GPIOPU_FS0_CTS3		(1 << 14)
+#define GPIOPU_FS0_RTS3		(1 << 15)
+#define GPIOPU_FS0_TXD4		(1 << 16)
+#define GPIOPU_FS0_RXD4		(1 << 17)
+#define GPIOPU_FS0_CTS4		(1 << 18)
+#define GPIOPU_FS0_RTS4		(1 << 19)
+
+#define GPIOFC_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOFC_DAT_OFFS		0xc0
+#define GPIOFC_DOE_OFFS		0xc4
+#define GPIOFC_FS0_OFFS		0xc8
+#define GPIOFC_FS1_OFFS		0xcc
+#define GPIOFC_FS2_OFFS		0xd0
+#define GPIOFC_FS3_OFFS		0xd4
+#define GPIOFC_RPU_OFFS		0xf0
+#define GPIOFC_RPD_OFFS		0xf4
+#define GPIOFC_DV0_OFFS		0xf8
+#define GPIOFC_DV1_OFFS		0xfc
+
+#define GPIOFD_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOFD_DAT_OFFS		0x100
+#define GPIOFD_DOE_OFFS		0x104
+#define GPIOFD_FS0_OFFS		0x108
+#define GPIOFD_FS1_OFFS		0x10c
+#define GPIOFD_FS2_OFFS		0x110
+#define GPIOFD_RPU_OFFS		0x130
+#define GPIOFD_RPD_OFFS		0x134
+#define GPIOFD_DV0_OFFS		0x138
+#define GPIOFD_DV1_OFFS		0x13c
+
+#define GPIOLC_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOLC_DAT_OFFS		0x140
+#define GPIOLC_DOE_OFFS		0x144
+#define GPIOLC_FS0_OFFS		0x148
+#define GPIOLC_FS1_OFFS		0x14c
+#define GPIOLC_RPU_OFFS		0x170
+#define GPIOLC_RPD_OFFS		0x174
+#define GPIOLC_DV0_OFFS		0x178
+#define GPIOLC_DV1_OFFS		0x17c
+
+#define GPIOLD_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOLD_DAT_OFFS		0x180
+#define GPIOLD_DOE_OFFS		0x184
+#define GPIOLD_FS0_OFFS		0x188
+#define GPIOLD_FS1_OFFS		0x18c
+#define GPIOLD_FS2_OFFS		0x190
+#define GPIOLD_RPU_OFFS		0x1b0
+#define GPIOLD_RPD_OFFS		0x1b4
+#define GPIOLD_DV0_OFFS		0x1b8
+#define GPIOLD_DV1_OFFS		0x1bc
+
+#define GPIOAD_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOAD_DAT_OFFS		0x1c0
+#define GPIOAD_DOE_OFFS		0x1c4
+#define GPIOAD_FS0_OFFS		0x1c8
+#define GPIOAD_RPU_OFFS		0x1f0
+#define GPIOAD_RPD_OFFS		0x1f4
+#define GPIOAD_DV0_OFFS		0x1f8
+#define GPIOAD_DV1_OFFS		0x1fc
+
+#define GPIOXC_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOXC_DAT_OFFS		0x200
+#define GPIOXC_DOE_OFFS		0x204
+#define GPIOXC_FS0_OFFS		0x208
+#define GPIOXC_RPU_OFFS		0x230
+#define GPIOXC_RPD_OFFS		0x234
+#define GPIOXC_DV0_OFFS		0x238
+#define GPIOXC_DV1_OFFS		0x23c
+
+#define GPIOXC_FS0		__REG(GPIOXC_BASE + GPIOXC_FS0_OFFS)
+
+#define GPIOXC_FS0_CS0		(1 << 26)
+#define GPIOXC_FS0_CS1		(1 << 27)
+
+#define GPIOXD_BASE		(APB1_PERI_BASE_VIRT + 0x5000)
+
+#define GPIOXD_DAT_OFFS		0x240
+#define GPIOXD_FS0_OFFS		0x248
+#define GPIOXD_RPU_OFFS		0x270
+#define GPIOXD_RPD_OFFS		0x274
+#define GPIOXD_DV0_OFFS		0x278
+#define GPIOXD_DV1_OFFS		0x27c
+
+#define GPIOPK_BASE		(APB1_PERI_BASE_VIRT + 0x1c000)
+
+#define GPIOPK_RST_OFFS		0x008
+#define GPIOPK_DAT_OFFS		0x100
+#define GPIOPK_DOE_OFFS		0x104
+#define GPIOPK_FS0_OFFS		0x108
+#define GPIOPK_FS1_OFFS		0x10c
+#define GPIOPK_FS2_OFFS		0x110
+#define GPIOPK_IRQST_OFFS	0x210
+#define GPIOPK_IRQEN_OFFS	0x214
+#define GPIOPK_IRQPOL_OFFS	0x218
+#define GPIOPK_IRQTM0_OFFS	0x21c
+#define GPIOPK_IRQTM1_OFFS	0x220
+#define GPIOPK_CTL_OFFS		0x22c
+
+#define PMGPIO_BASE		(APB1_PERI_BASE_VIRT + 0x10000)
+#define BACKUP_RAM_BASE		PMGPIO_BASE
+
+#define PMGPIO_DAT_OFFS		0x800
+#define PMGPIO_DOE_OFFS		0x804
+#define PMGPIO_FS0_OFFS		0x808
+#define PMGPIO_RPU_OFFS		0x810
+#define PMGPIO_RPD_OFFS		0x814
+#define PMGPIO_DV0_OFFS		0x818
+#define PMGPIO_DV1_OFFS		0x81c
+#define PMGPIO_EE0_OFFS		0x820
+#define PMGPIO_EE1_OFFS		0x824
+#define PMGPIO_CTL_OFFS		0x828
+#define PMGPIO_DI_OFFS		0x82c
+#define PMGPIO_STR_OFFS		0x830
+#define PMGPIO_STF_OFFS		0x834
+#define PMGPIO_POL_OFFS		0x838
+#define PMGPIO_APB_OFFS		0x800
+
+/* Clock controller registers */
+#define CKC_BASE		(APB1_PERI_BASE_VIRT + 0x6000)
+#define CKC_BASE_PHYS		(APB1_PERI_BASE + 0x6000)
+
+#define CLKCTRL_OFFS		0x00
+#define PLL0CFG_OFFS		0x04
+#define PLL1CFG_OFFS		0x08
+#define CLKDIVC0_OFFS		0x0c
+
+#define BCLKCTR0_OFFS		0x14
+#define SWRESET0_OFFS		0x18
+
+#define BCLKCTR1_OFFS		0x60
+#define SWRESET1_OFFS		0x64
+#define PWDCTL_OFFS		0x68
+#define PLL2CFG_OFFS		0x6c
+#define CLKDIVC1_OFFS		0x70
+
+#define ACLKREF_OFFS		0x80
+#define ACLKI2C_OFFS		0x84
+#define ACLKSPI0_OFFS		0x88
+#define ACLKSPI1_OFFS		0x8c
+#define ACLKUART0_OFFS		0x90
+#define ACLKUART1_OFFS		0x94
+#define ACLKUART2_OFFS		0x98
+#define ACLKUART3_OFFS		0x9c
+#define ACLKUART4_OFFS		0xa0
+#define ACLKTCT_OFFS		0xa4
+#define ACLKTCX_OFFS		0xa8
+#define ACLKTCZ_OFFS		0xac
+#define ACLKADC_OFFS		0xb0
+#define ACLKDAI0_OFFS		0xb4
+#define ACLKDAI1_OFFS		0xb8
+#define ACLKLCD_OFFS		0xbc
+#define ACLKSPDIF_OFFS		0xc0
+#define ACLKUSBH_OFFS		0xc4
+#define ACLKSDH0_OFFS		0xc8
+#define ACLKSDH1_OFFS		0xcc
+#define ACLKC3DEC_OFFS		0xd0
+#define ACLKEXT_OFFS		0xd4
+#define ACLKCAN0_OFFS		0xd8
+#define ACLKCAN1_OFFS		0xdc
+#define ACLKGSB0_OFFS		0xe0
+#define ACLKGSB1_OFFS		0xe4
+#define ACLKGSB2_OFFS		0xe8
+#define ACLKGSB3_OFFS		0xec
+
+#define PLLxCFG_PD		(1 << 31)
+
+/* CLKCTRL bits */
+#define CLKCTRL_XE		(1 << 31)
+
+/* CLKDIVCx bits */
+#define CLKDIVC0_XTE		(1 << 7)
+#define CLKDIVC0_XE		(1 << 15)
+#define CLKDIVC0_P1E		(1 << 23)
+#define CLKDIVC0_P0E		(1 << 31)
+
+#define CLKDIVC1_P2E		(1 << 7)
+
+/* BCLKCTR0 clock bits */
+#define BCLKCTR0_USBD		(1 << 4)
+#define BCLKCTR0_ECC		(1 << 9)
+#define BCLKCTR0_USBH0		(1 << 11)
+#define BCLKCTR0_NFC		(1 << 16)
+
+/* BCLKCTR1 clock bits */
+#define BCLKCTR1_USBH1		(1 << 20)
+
+/* SWRESET0 bits */
+#define SWRESET0_USBD		(1 << 4)
+#define SWRESET0_USBH0		(1 << 11)
+
+/* SWRESET1 bits */
+#define SWRESET1_USBH1		(1 << 20)
+
+/* System clock sources */
+enum root_clks {
+	CLK_SRC_PLL0 = 0,
+	CLK_SRC_PLL1,
+	CLK_SRC_PLL0DIV,
+	CLK_SRC_PLL1DIV,
+	CLK_SRC_XI,
+	CLK_SRC_XIDIV,
+	CLK_SRC_XTI,
+	CLK_SRC_XTIDIV,
+	CLK_SRC_PLL2,
+	CLK_SRC_PLL2DIV,
+	CLK_SRC_PK0,
+	CLK_SRC_PK1,
+	CLK_SRC_PK2,
+	CLK_SRC_PK3,
+	CLK_SRC_PK4,
+	CLK_SRC_48MHZ
+};
+
+#define CLK_SRC_MASK		0xf
+
+/* Bits in ACLK* registers */
+#define ACLK_EN		(1 << 28)
+#define ACLK_SEL_SHIFT		24
+#define ACLK_SEL_MASK		0x0f000000
+#define ACLK_DIV_MASK		0x00000fff
+
+/* System configuration registers */
+
+#define SCFG_BASE		(APB1_PERI_BASE_VIRT + 0x13000)
+
+#define	BMI_OFFS		0x00
+#define AHBCON0_OFFS		0x04
+#define APBPWE_OFFS		0x08
+#define DTCMWAIT_OFFS		0x0c
+#define ECCSEL_OFFS		0x10
+#define AHBCON1_OFFS		0x14
+#define SDHCFG_OFFS		0x18
+#define REMAP_OFFS		0x20
+#define LCDSIAE_OFFS		0x24
+#define XMCCFG_OFFS		0xe0
+#define IMCCFG_OFFS		0xe4
+
+/* Values for ECCSEL */
+#define ECCSEL_EXTMEM		0x0
+#define ECCSEL_DTCM		0x1
+#define ECCSEL_INT_SRAM		0x2
+#define ECCSEL_AHB		0x3
+
+/* Bits in XMCCFG */
+#define XMCCFG_NFCE		(1 << 1)
+#define XMCCFG_FDXD		(1 << 2)
+
+/* External memory controller registers */
+
+#define EMC_BASE		EXT_MEM_CTRL_BASE
+
+#define SDCFG_OFFS		0x00
+#define SDFSM_OFFS		0x04
+#define MCFG_OFFS		0x08
+
+#define CSCFG0_OFFS		0x10
+#define CSCFG1_OFFS		0x14
+#define CSCFG2_OFFS		0x18
+#define CSCFG3_OFFS		0x1c
+
+#define MCFG_SDEN		(1 << 4)
+
+#endif /* TCC8K_REGS_H */
diff --git a/arch/arm/plat-tcc/include/mach/uncompress.h b/arch/arm/plat-tcc/include/mach/uncompress.h
new file mode 100644
index 0000000..8e0294d
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/uncompress.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * This file is licensed under the terms of the GPL version 2.
+ */
+
+#include <linux/types.h>
+#include <mach/tcc8k-regs.h>
+
+unsigned int system_rev;
+
+#define ID_MASK			0x7fff
+
+static void putc(int c)
+{
+	u32 *uart_lsr = (u32 *)(UART_BASE_PHYS + UART_LSR_OFFS);
+	u32 *uart_thr = (u32 *)(UART_BASE_PHYS + UART_THR_OFFS);
+
+	while (!(*uart_lsr & UART_LSR_THRE))
+		barrier();
+	*uart_thr = c;
+}
+
+static inline void flush(void)
+{
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/arch/arm/plat-tcc/include/mach/vmalloc.h b/arch/arm/plat-tcc/include/mach/vmalloc.h
new file mode 100644
index 0000000..9635303
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/vmalloc.h
@@ -0,0 +1,11 @@
+/*
+ * Author: <linux@telechips.com>
+ * Created: June 10, 2008
+ *
+ * Copyright (C) 2000 Russell King.
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * Licensed under the terms of the GPL v2.
+ */
+#define VMALLOC_END	  (PAGE_OFFSET + 0x10000000)
+
diff --git a/arch/arm/plat-tcc/system.c b/arch/arm/plat-tcc/system.c
new file mode 100644
index 0000000..1a33ced
--- /dev/null
+++ b/arch/arm/plat-tcc/system.c
@@ -0,0 +1,24 @@
+/*
+ * System functions for Telechips TCCxxxx SoCs
+ *
+ * Copyright (C) Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GPL v2.
+ *
+ */
+
+#include <asm/io.h>
+#include <mach/tcc8k-regs.h>
+
+/* System reboot */
+void plat_tcc_reboot(void)
+{
+	/* Make sure clocks are on */
+	__raw_writel(0xffffffff, CKC_BASE + BCLKCTR0_OFFS);
+
+	/* Enable watchdog reset */
+	__raw_writel(0x49, TIMER_BASE + TWDCFG_OFFS);
+	/* Wait for reset */
+	unreachable();
+}
+
-- 
1.6.3.3

[PATCH 02/07] Add clock framework for plat-tcc

[Hans J. Koch]

Add the clock framework for Telechips TCC8xxx processors.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/mach-tcc8k/Makefile            |    6 +
 arch/arm/mach-tcc8k/clock.c             |  589 +++++++++++++++++++++++++++++++
 arch/arm/plat-tcc/Makefile              |    2 +-
 arch/arm/plat-tcc/clock.c               |  170 +++++++++
 arch/arm/plat-tcc/include/mach/clkdev.h |    7 +
 arch/arm/plat-tcc/include/mach/clock.h  |   48 +++
 6 files changed, 821 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/Makefile
 create mode 100644 arch/arm/mach-tcc8k/clock.c
 create mode 100644 arch/arm/plat-tcc/clock.c
 create mode 100644 arch/arm/plat-tcc/include/mach/clkdev.h
 create mode 100644 arch/arm/plat-tcc/include/mach/clock.h

diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
new file mode 100644
index 0000000..805d850
--- /dev/null
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for TCC8K boards and common files.
+#
+
+# Common support
+obj-y += clock.o
diff --git a/arch/arm/mach-tcc8k/clock.c b/arch/arm/mach-tcc8k/clock.c
new file mode 100644
index 0000000..2910d9a
--- /dev/null
+++ b/arch/arm/mach-tcc8k/clock.c
@@ -0,0 +1,589 @@
+/*
+ * Lowlevel clock handling for Telechips TCC8xxx SoCs
+ *
+ * Copyright (C) 2010 by Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GPL v2
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+
+#include <asm/clkdev.h>
+
+#include <mach/clock.h>
+#include <mach/irqs.h>
+#include <mach/tcc8k-regs.h>
+
+extern int __init tcc8k_timer_init(struct clk *clock,
+					void __iomem *base, int irq);
+
+#define BCLKCTR0	(void __iomem *)(CKC_BASE + BCLKCTR0_OFFS)
+#define BCLKCTR1	(void __iomem *)(CKC_BASE + BCLKCTR1_OFFS)
+
+#define ACLKREF		(void __iomem *)(CKC_BASE + ACLKREF_OFFS)
+#define ACLKUART0	(void __iomem *)(CKC_BASE + ACLKUART0_OFFS)
+#define ACLKUART1	(void __iomem *)(CKC_BASE + ACLKUART1_OFFS)
+#define ACLKUART2	(void __iomem *)(CKC_BASE + ACLKUART2_OFFS)
+#define ACLKUART3	(void __iomem *)(CKC_BASE + ACLKUART3_OFFS)
+#define ACLKUART4	(void __iomem *)(CKC_BASE + ACLKUART4_OFFS)
+#define ACLKI2C		(void __iomem *)(CKC_BASE + ACLKI2C_OFFS)
+#define ACLKADC		(void __iomem *)(CKC_BASE + ACLKADC_OFFS)
+#define ACLKUSBH	(void __iomem *)(CKC_BASE + ACLKUSBH_OFFS)
+#define ACLKLCD		(void __iomem *)(CKC_BASE + ACLKLCD_OFFS)
+#define ACLKSDH0	(void __iomem *)(CKC_BASE + ACLKSDH0_OFFS)
+#define ACLKSDH1	(void __iomem *)(CKC_BASE + ACLKSDH1_OFFS)
+#define ACLKSPI0	(void __iomem *)(CKC_BASE + ACLKSPI0_OFFS)
+#define ACLKSPI1	(void __iomem *)(CKC_BASE + ACLKSPI1_OFFS)
+#define ACLKSPDIF	(void __iomem *)(CKC_BASE + ACLKSPDIF_OFFS)
+#define ACLKC3DEC	(void __iomem *)(CKC_BASE + ACLKC3DEC_OFFS)
+#define ACLKCAN0	(void __iomem *)(CKC_BASE + ACLKCAN0_OFFS)
+#define ACLKCAN1	(void __iomem *)(CKC_BASE + ACLKCAN1_OFFS)
+#define ACLKGSB0	(void __iomem *)(CKC_BASE + ACLKGSB0_OFFS)
+#define ACLKGSB1	(void __iomem *)(CKC_BASE + ACLKGSB1_OFFS)
+#define ACLKGSB2	(void __iomem *)(CKC_BASE + ACLKGSB2_OFFS)
+#define ACLKGSB3	(void __iomem *)(CKC_BASE + ACLKGSB3_OFFS)
+#define ACLKUSBH	(void __iomem *)(CKC_BASE + ACLKUSBH_OFFS)
+#define ACLKTCT		(void __iomem *)(CKC_BASE + ACLKTCT_OFFS)
+#define ACLKTCX		(void __iomem *)(CKC_BASE + ACLKTCX_OFFS)
+#define ACLKTCZ		(void __iomem *)(CKC_BASE + ACLKTCZ_OFFS)
+
+/* Crystal frequencies */
+static unsigned long xi_rate, xti_rate;
+
+static int index_of_root_clk(struct clk *clock);
+
+static void __iomem *pll_cfg_addr(int pll)
+{
+	switch (pll) {
+	case 0: return (void __iomem *)(CKC_BASE + PLL0CFG_OFFS);
+	case 1: return (void __iomem *)(CKC_BASE + PLL1CFG_OFFS);
+	case 2: return (void __iomem *)(CKC_BASE + PLL2CFG_OFFS);
+	default: BUG();
+	}
+}
+
+static int pll_enable(int pll, int enable)
+{
+	u32 reg;
+	void __iomem *addr = pll_cfg_addr(pll);
+
+	reg = __raw_readl(addr);
+	if (enable)
+		reg &= ~PLLxCFG_PD;
+	else
+		reg |= PLLxCFG_PD;
+
+	__raw_writel(reg, addr);
+	return 0;
+}
+
+static int xi_enable(int enable)
+{
+	u32 reg;
+
+	reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
+	if (enable)
+		reg |= CLKCTRL_XE;
+	else
+		reg &= ~CLKCTRL_XE;
+
+	__raw_writel(reg, CKC_BASE + CLKCTRL_OFFS);
+	return 0;
+}
+
+static int root_clk_enable(enum root_clks src)
+{
+	switch (src) {
+	case CLK_SRC_PLL0: return pll_enable(0, 1);
+	case CLK_SRC_PLL1: return pll_enable(1, 1);
+	case CLK_SRC_PLL2: return pll_enable(2, 1);
+	case CLK_SRC_XI: return xi_enable(1);
+	default: BUG();
+	}
+	return 0;
+}
+
+static int root_clk_disable(enum root_clks root_src)
+{
+	switch (root_src) {
+	case CLK_SRC_PLL0: return pll_enable(0, 0);
+	case CLK_SRC_PLL1: return pll_enable(1, 0);
+	case CLK_SRC_PLL2: return pll_enable(2, 0);
+	case CLK_SRC_XI: return xi_enable(0);
+	default: BUG();
+	}
+	return 0;
+}
+
+static int enable_clk(struct clk *clk)
+{
+	u32 reg;
+
+	if (clk->root_id)
+		return root_clk_enable(clk->root_id - 1);
+
+	if (clk->aclkreg) {
+		reg = __raw_readl(clk->aclkreg);
+		reg |= ACLK_EN;
+		__raw_writel(reg, clk->aclkreg);
+	}
+	if (clk->bclkctr) {
+		reg = __raw_readl(clk->bclkctr);
+		reg |= 1 << clk->bclk_shift;
+		__raw_writel(reg, clk->bclkctr);
+	}
+	return 0;
+}
+
+static void disable_clk(struct clk *clk)
+{
+	u32 reg;
+
+	if (clk->root_id) {
+		root_clk_disable(clk->root_id - 1);
+		return;
+	}
+
+	if (clk->bclkctr) {
+		reg = __raw_readl(clk->bclkctr);
+		reg &= ~(1 << clk->bclk_shift);
+		__raw_writel(reg, clk->bclkctr);
+	}
+	if (clk->aclkreg) {
+		reg = __raw_readl(clk->aclkreg);
+		reg &= ~ACLK_EN;
+		__raw_writel(reg, clk->aclkreg);
+	}
+}
+
+static unsigned long get_rate_pll(int pll)
+{
+	u32 reg;
+	unsigned long s, m, p;
+	void __iomem *addr = pll_cfg_addr(pll);
+
+	reg = __raw_readl(addr);
+	s = (reg >> 16) & 0x07;
+	m = (reg >> 8) & 0xff;
+	p = reg & 0x3f;
+
+	return (m * xi_rate) / (p * (1 << s));
+}
+
+static unsigned long get_rate_pll_div(int pll)
+{
+	u32 reg;
+	unsigned long div = 0;
+	void __iomem *addr;
+
+	switch (pll) {
+	case 0:
+		addr = (void __iomem *)(CKC_BASE + CLKDIVC0_OFFS);
+		reg = __raw_readl(addr);
+		if (reg & CLKDIVC0_P0E)
+			div = (reg >> 24) & 0x3f;
+		break;
+	case 1:
+		addr = (void __iomem *)(CKC_BASE + CLKDIVC0_OFFS);
+		reg = __raw_readl(addr);
+		if (reg & CLKDIVC0_P1E)
+			div = (reg >> 16) & 0x3f;
+		break;
+	case 2:
+		addr = (void __iomem *)(CKC_BASE + CLKDIVC1_OFFS);
+		reg = __raw_readl(addr);
+		if (reg & CLKDIVC1_P2E)
+			div = __raw_readl(addr) & 0x3f;
+		break;
+	}
+	return get_rate_pll(pll) / (div + 1);
+}
+
+static unsigned long get_rate_xi_div(void)
+{
+	unsigned long div = 0;
+	u32 reg = __raw_readl(CKC_BASE + CLKDIVC0_OFFS);
+
+	if (reg & CLKDIVC0_XE)
+		div = (reg >> 8) & 0x3f;
+
+	return xi_rate / (div + 1);
+}
+
+static unsigned long get_rate_xti_div(void)
+{
+	unsigned long div = 0;
+	u32 reg = __raw_readl(CKC_BASE + CLKDIVC0_OFFS);
+
+	if (reg & CLKDIVC0_XTE)
+		div = reg & 0x3f;
+
+	return xti_rate / (div + 1);
+}
+
+static unsigned long root_clk_get_rate(enum root_clks src)
+{
+	switch (src) {
+	case CLK_SRC_PLL0: return get_rate_pll(0);
+	case CLK_SRC_PLL1: return get_rate_pll(1);
+	case CLK_SRC_PLL2: return get_rate_pll(2);
+	case CLK_SRC_PLL0DIV: return get_rate_pll_div(0);
+	case CLK_SRC_PLL1DIV: return get_rate_pll_div(1);
+	case CLK_SRC_PLL2DIV: return get_rate_pll_div(2);
+	case CLK_SRC_XI: return xi_rate;
+	case CLK_SRC_XTI: return xti_rate;
+	case CLK_SRC_XIDIV: return get_rate_xi_div();
+	case CLK_SRC_XTIDIV: return get_rate_xti_div();
+	default: return 0;
+	}
+}
+
+static unsigned long aclk_get_rate(struct clk *clk)
+{
+	u32 reg;
+	unsigned long div;
+	unsigned int src;
+
+	reg = __raw_readl(clk->aclkreg);
+	div = reg & 0x0fff;
+	src = (reg >> ACLK_SEL_SHIFT) & CLK_SRC_MASK;
+	return root_clk_get_rate(src) / (div + 1);
+}
+
+static unsigned long aclk_best_div(struct clk *clk, unsigned long rate)
+{
+	unsigned long div, src, freq, r1, r2;
+
+	src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
+	src &= CLK_SRC_MASK;
+	freq = root_clk_get_rate(src);
+	div = freq / rate + 1;
+	r1 = freq / div;
+	r2 = freq / (div + 1);
+	if (r2 >= rate)
+		return div + 1;
+	if ((rate - r2) < (r1 - rate))
+		return div + 1;
+
+	return div;
+}
+
+static unsigned long aclk_round_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int src;
+
+	src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
+	src &= CLK_SRC_MASK;
+
+	return root_clk_get_rate(src) / aclk_best_div(clk, rate);
+}
+
+static int aclk_set_rate(struct clk *clk, unsigned long rate)
+{
+	u32 reg;
+
+	reg = __raw_readl(clk->aclkreg) & ~ACLK_DIV_MASK;
+	reg |= aclk_best_div(clk, rate);
+	return 0;
+}
+
+static unsigned long get_rate_sys(struct clk *clk)
+{
+	unsigned int src;
+
+	src = __raw_readl(CKC_BASE + CLKCTRL_OFFS) & CLK_SRC_MASK;
+		return root_clk_get_rate(src);
+}
+
+static unsigned long get_rate_bus(struct clk *clk)
+{
+	unsigned int div;
+
+	div = (__raw_readl(CKC_BASE + CLKCTRL_OFFS) >> 4) & 0xff;
+	return get_rate_sys(clk) / (div + 1);
+}
+
+static unsigned long get_rate_cpu(struct clk *clk)
+{
+	unsigned int reg, div, fsys, fbus;
+
+	fbus = get_rate_bus(clk);
+	reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
+	if (reg & (1 << 29))
+		return fbus;
+	fsys = get_rate_sys(clk);
+	div = (reg >> 16) & 0x0f;
+	return fbus + ((fsys - fbus) * (div + 1)) / 16;
+}
+
+static unsigned long get_rate_root(struct clk *clk)
+{
+	return root_clk_get_rate(clk->root_id - 1);
+}
+
+static int __set_parent(struct clk *clock, struct clk *parent)
+{
+	if (clock->parent && (clock->parent != parent)) {
+		clock->parent->refcount--;
+		if ((clock->parent->refcount == 0) && clock->parent->disable)
+			clock->parent->disable(clock->parent);
+	}
+
+	clock->parent = parent;
+	if (clock->parent)
+		clock->parent->refcount++;
+	return 0;
+}
+
+static int aclk_set_parent(struct clk *clock, struct clk *parent)
+{
+	int new_src;
+	u32 reg;
+
+	if (clock->parent == parent)
+		return 0;
+
+	if (!parent)
+		return __set_parent(clock, parent);
+
+	new_src = index_of_root_clk(parent);
+	if (new_src < 0)
+		return __set_parent(clock, parent);
+	reg = __raw_readl(clock->aclkreg);
+	reg &= ~ACLK_SEL_MASK;
+	reg |= (new_src << ACLK_SEL_SHIFT) & ACLK_SEL_MASK;
+	__raw_writel(reg, clock->aclkreg);
+
+	return 0;
+}
+
+#define DEFINE_ROOT_CLOCK(name, ri, p)	\
+	static struct clk name = {		\
+		.root_id = ri,			\
+		.get_rate = get_rate_root,			\
+		.enable = enable_clk,		\
+		.disable = disable_clk,		\
+		.parent = p,			\
+	};
+
+#define DEFINE_SPECIAL_CLOCK(name, gr, p)	\
+	static struct clk name = {		\
+		.get_rate = gr,			\
+		.parent = p,			\
+	};
+
+#define DEFINE_ACLOCK(name, bc, bs, ar)		\
+	static struct clk name = {		\
+		.bclkctr = bc,			\
+		.bclk_shift = bs,		\
+		.aclkreg = ar,			\
+		.get_rate = aclk_get_rate,	\
+		.set_rate = aclk_set_rate,	\
+		.round_rate = aclk_round_rate,	\
+		.enable = enable_clk,		\
+		.disable = disable_clk,		\
+		.set_parent = aclk_set_parent,	\
+	};
+
+#define DEFINE_BCLOCK(name, bc, bs, gr, p)	\
+	static struct clk name = {		\
+		.bclkctr = bc,			\
+		.bclk_shift = bs,		\
+		.get_rate = gr,			\
+		.enable = enable_clk,		\
+		.disable = disable_clk,		\
+		.parent = p,			\
+	};
+
+DEFINE_ROOT_CLOCK(xi, CLK_SRC_XI + 1, NULL)
+DEFINE_ROOT_CLOCK(xti, CLK_SRC_XTI + 1, NULL)
+DEFINE_ROOT_CLOCK(xidiv, CLK_SRC_XIDIV + 1, &xi)
+DEFINE_ROOT_CLOCK(xtidiv, CLK_SRC_XTIDIV + 1, &xti)
+DEFINE_ROOT_CLOCK(pll0, CLK_SRC_PLL0 + 1, &xi)
+DEFINE_ROOT_CLOCK(pll1, CLK_SRC_PLL1 + 1, &xi)
+DEFINE_ROOT_CLOCK(pll2, CLK_SRC_PLL2 + 1, &xi)
+DEFINE_ROOT_CLOCK(pll0div, CLK_SRC_PLL0DIV + 1, &pll0)
+DEFINE_ROOT_CLOCK(pll1div, CLK_SRC_PLL1DIV + 1, &pll1)
+DEFINE_ROOT_CLOCK(pll2div, CLK_SRC_PLL2DIV + 1, &pll2)
+
+/* The following 3 clocks are special and are initialized explicitly later */
+DEFINE_SPECIAL_CLOCK(sys, get_rate_sys, NULL)
+DEFINE_SPECIAL_CLOCK(bus, get_rate_bus, &sys)
+DEFINE_SPECIAL_CLOCK(cpu, get_rate_cpu, &sys)
+
+DEFINE_ACLOCK(tct, NULL, 0, ACLKTCT)
+DEFINE_ACLOCK(tcx, NULL, 0, ACLKTCX)
+DEFINE_ACLOCK(tcz, NULL, 0, ACLKTCZ)
+DEFINE_ACLOCK(ref, NULL, 0, ACLKREF)
+DEFINE_ACLOCK(uart0, BCLKCTR0, 5, ACLKUART0)
+DEFINE_ACLOCK(uart1, BCLKCTR0, 23, ACLKUART1)
+DEFINE_ACLOCK(uart2, BCLKCTR0, 6, ACLKUART2)
+DEFINE_ACLOCK(uart3, BCLKCTR0, 8, ACLKUART3)
+DEFINE_ACLOCK(uart4, BCLKCTR1, 6, ACLKUART4)
+DEFINE_ACLOCK(i2c, BCLKCTR0, 7, ACLKI2C)
+DEFINE_ACLOCK(adc, BCLKCTR0, 10, ACLKADC)
+DEFINE_ACLOCK(usbh0, BCLKCTR0, 11, ACLKUSBH)
+DEFINE_ACLOCK(lcd, BCLKCTR0, 13, ACLKLCD)
+DEFINE_ACLOCK(sd0, BCLKCTR0, 17, ACLKSDH0)
+DEFINE_ACLOCK(sd1, BCLKCTR1, 5, ACLKSDH1)
+DEFINE_ACLOCK(spi0, BCLKCTR0, 24, ACLKSPI0)
+DEFINE_ACLOCK(spi1, BCLKCTR0, 30, ACLKSPI1)
+DEFINE_ACLOCK(spdif, BCLKCTR1, 2, ACLKSPDIF)
+DEFINE_ACLOCK(c3dec, BCLKCTR1, 9, ACLKC3DEC)
+DEFINE_ACLOCK(can0, BCLKCTR1, 10, ACLKCAN0)
+DEFINE_ACLOCK(can1, BCLKCTR1, 11, ACLKCAN1)
+DEFINE_ACLOCK(gsb0, BCLKCTR1, 13, ACLKGSB0)
+DEFINE_ACLOCK(gsb1, BCLKCTR1, 14, ACLKGSB1)
+DEFINE_ACLOCK(gsb2, BCLKCTR1, 15, ACLKGSB2)
+DEFINE_ACLOCK(gsb3, BCLKCTR1, 16, ACLKGSB3)
+DEFINE_ACLOCK(usbh1, BCLKCTR1, 20, ACLKUSBH)
+
+DEFINE_BCLOCK(dai0, BCLKCTR0, 0, NULL, NULL)
+DEFINE_BCLOCK(pic, BCLKCTR0, 1, NULL, NULL)
+DEFINE_BCLOCK(tc, BCLKCTR0, 2, NULL, NULL)
+DEFINE_BCLOCK(gpio, BCLKCTR0, 3, NULL, NULL)
+DEFINE_BCLOCK(usbd, BCLKCTR0, 4, NULL, NULL)
+DEFINE_BCLOCK(ecc, BCLKCTR0, 9, NULL, NULL)
+DEFINE_BCLOCK(gdma0, BCLKCTR0, 12, NULL, NULL)
+DEFINE_BCLOCK(rtc, BCLKCTR0, 15, NULL, NULL)
+DEFINE_BCLOCK(nfc, BCLKCTR0, 16, NULL, NULL)
+DEFINE_BCLOCK(g2d, BCLKCTR0, 18, NULL, NULL)
+DEFINE_BCLOCK(gdma1, BCLKCTR0, 22, NULL, NULL)
+DEFINE_BCLOCK(mscl, BCLKCTR0, 25, NULL, NULL)
+DEFINE_BCLOCK(bdma, BCLKCTR1, 0, NULL, NULL)
+DEFINE_BCLOCK(adma0, BCLKCTR1, 1, NULL, NULL)
+DEFINE_BCLOCK(scfg, BCLKCTR1, 3, NULL, NULL)
+DEFINE_BCLOCK(cid, BCLKCTR1, 4, NULL, NULL)
+DEFINE_BCLOCK(dai1, BCLKCTR1, 7, NULL, NULL)
+DEFINE_BCLOCK(adma1, BCLKCTR1, 8, NULL, NULL)
+DEFINE_BCLOCK(gps, BCLKCTR1, 12, NULL, NULL)
+DEFINE_BCLOCK(gdma2, BCLKCTR1, 17, NULL, NULL)
+DEFINE_BCLOCK(gdma3, BCLKCTR1, 18, NULL, NULL)
+DEFINE_BCLOCK(ddrc, BCLKCTR1, 19, NULL, NULL)
+
+#define _REGISTER_CLOCK(d, n, c) \
+	{ \
+		.dev_id = d, \
+		.con_id = n, \
+		.clk = &c, \
+	},
+
+static struct clk_lookup lookups[] = {
+	_REGISTER_CLOCK(NULL, "bus", bus)
+	_REGISTER_CLOCK(NULL, "cpu", cpu)
+	_REGISTER_CLOCK(NULL, "tct", tct)
+	_REGISTER_CLOCK(NULL, "tcx", tcx)
+	_REGISTER_CLOCK(NULL, "tcz", tcz)
+	_REGISTER_CLOCK(NULL, "ref", ref)
+	_REGISTER_CLOCK(NULL, "dai0", dai0)
+	_REGISTER_CLOCK(NULL, "pic", pic)
+	_REGISTER_CLOCK(NULL, "tc", tc)
+	_REGISTER_CLOCK(NULL, "gpio", gpio)
+	_REGISTER_CLOCK(NULL, "usbd", usbd)
+	_REGISTER_CLOCK("tcc-uart.0", NULL, uart0)
+	_REGISTER_CLOCK("tcc-uart.2", NULL, uart2)
+	_REGISTER_CLOCK("tcc-i2c", NULL, i2c)
+	_REGISTER_CLOCK("tcc-uart.3", NULL, uart3)
+	_REGISTER_CLOCK(NULL, "ecc", ecc)
+	_REGISTER_CLOCK(NULL, "adc", adc)
+	_REGISTER_CLOCK("tcc-usbh.0", "usb", usbh0)
+	_REGISTER_CLOCK(NULL, "gdma0", gdma0)
+	_REGISTER_CLOCK(NULL, "lcd", lcd)
+	_REGISTER_CLOCK(NULL, "rtc", rtc)
+	_REGISTER_CLOCK(NULL, "nfc", nfc)
+	_REGISTER_CLOCK("tcc-mmc.0", NULL, sd0)
+	_REGISTER_CLOCK(NULL, "g2d", g2d)
+	_REGISTER_CLOCK(NULL, "gdma1", gdma1)
+	_REGISTER_CLOCK("tcc-uart.1", NULL, uart1)
+	_REGISTER_CLOCK("tcc-spi.0", NULL, spi0)
+	_REGISTER_CLOCK(NULL, "mscl", mscl)
+	_REGISTER_CLOCK("tcc-spi.1", NULL, spi1)
+	_REGISTER_CLOCK(NULL, "bdma", bdma)
+	_REGISTER_CLOCK(NULL, "adma0", adma0)
+	_REGISTER_CLOCK(NULL, "spdif", spdif)
+	_REGISTER_CLOCK(NULL, "scfg", scfg)
+	_REGISTER_CLOCK(NULL, "cid", cid)
+	_REGISTER_CLOCK("tcc-mmc.1", NULL, sd1)
+	_REGISTER_CLOCK("tcc-uart.4", NULL, uart4)
+	_REGISTER_CLOCK(NULL, "dai1", dai1)
+	_REGISTER_CLOCK(NULL, "adma1", adma1)
+	_REGISTER_CLOCK(NULL, "c3dec", c3dec)
+	_REGISTER_CLOCK("tcc-can.0", NULL, can0)
+	_REGISTER_CLOCK("tcc-can.1", NULL, can1)
+	_REGISTER_CLOCK(NULL, "gps", gps)
+	_REGISTER_CLOCK("tcc-gsb.0", NULL, gsb0)
+	_REGISTER_CLOCK("tcc-gsb.1", NULL, gsb1)
+	_REGISTER_CLOCK("tcc-gsb.2", NULL, gsb2)
+	_REGISTER_CLOCK("tcc-gsb.3", NULL, gsb3)
+	_REGISTER_CLOCK(NULL, "gdma2", gdma2)
+	_REGISTER_CLOCK(NULL, "gdma3", gdma3)
+	_REGISTER_CLOCK(NULL, "ddrc", ddrc)
+	_REGISTER_CLOCK("tcc-usbh.1", "usb", usbh1)
+};
+
+static struct clk *root_clk_by_index(enum root_clks src)
+{
+	switch (src) {
+	case CLK_SRC_PLL0: return &pll0;
+	case CLK_SRC_PLL1: return &pll1;
+	case CLK_SRC_PLL2: return &pll2;
+	case CLK_SRC_PLL0DIV: return &pll0div;
+	case CLK_SRC_PLL1DIV: return &pll1div;
+	case CLK_SRC_PLL2DIV: return &pll2div;
+	case CLK_SRC_XI: return &xi;
+	case CLK_SRC_XTI: return &xti;
+	case CLK_SRC_XIDIV: return &xidiv;
+	case CLK_SRC_XTIDIV: return &xtidiv;
+	default: return NULL;
+	}
+}
+
+static int index_of_root_clk(struct clk *clock)
+{
+	if (clock->root_id)
+		return clock->root_id - 1;
+
+	return -1;
+}
+
+static void find_aclk_parent(struct clk *clk)
+{
+	unsigned int src;
+	struct clk *clock;
+
+	if (!clk->aclkreg)
+		return;
+
+	src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
+	src &= CLK_SRC_MASK;
+
+	clock = root_clk_by_index(src);
+	if (!clock)
+		return;
+
+	clk->parent = clock;
+	clk->set_parent = aclk_set_parent;
+}
+
+int __init tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq)
+{
+	int i;
+
+	xi_rate = xi_freq;
+	xti_rate = xti_freq;
+
+	/* fixup parents and refcounts */
+	for (i = 0; i < ARRAY_SIZE(lookups); i++) {
+		find_aclk_parent(lookups[i].clk);
+		if (lookups[i].clk->parent)
+			__set_parent(lookups[i].clk, lookups[i].clk->parent);
+		clkdev_add(&lookups[i]);
+	}
+
+	return tcc8k_timer_init(&tcz, (void __iomem *)TIMER_BASE, INT_TC32);
+}
diff --git a/arch/arm/plat-tcc/Makefile b/arch/arm/plat-tcc/Makefile
index 3f2e4fe..eceabc8 100644
--- a/arch/arm/plat-tcc/Makefile
+++ b/arch/arm/plat-tcc/Makefile
@@ -1,3 +1,3 @@
 # "Telechips Platform Common Modules"
 
-obj-y := system.o
+obj-y := clock.o system.o
diff --git a/arch/arm/plat-tcc/clock.c b/arch/arm/plat-tcc/clock.c
new file mode 100644
index 0000000..2c08131
--- /dev/null
+++ b/arch/arm/plat-tcc/clock.c
@@ -0,0 +1,170 @@
+/*
+ * Clock framework for Telechips SoCs
+ * Based on arch/arm/plat-mxc/clock.c
+ *
+ * Copyright (C) 2004 - 2005 Nokia corporation
+ * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
+ * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Juergen Beisert, kernel at pengutronix.de
+ * Copyright 2010 Hans J. Koch, hjk at linutronix.de
+ *
+ * Licensed under the terms of the GPL v2.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/string.h>
+
+#include <mach/clock.h>
+#include <mach/hardware.h>
+
+static DEFINE_MUTEX(clocks_mutex);
+
+/*-------------------------------------------------------------------------
+ * Standard clock functions defined in include/linux/clk.h
+ *-------------------------------------------------------------------------*/
+
+static void __clk_disable(struct clk *clk)
+{
+	if (!clk)
+		return;
+
+	BUG_ON(clk->refcount == 0);
+
+	if (!(--clk->refcount) && clk->disable)
+		clk->disable(clk);
+	__clk_disable(clk->parent);
+}
+
+static int __clk_enable(struct clk *clk)
+{
+	if (!clk)
+		return -EINVAL;
+
+	__clk_enable(clk->parent);
+
+	if (clk->refcount++ == 0 && clk->enable)
+		clk->enable(clk);
+
+	return 0;
+}
+
+/* This function increments the reference count on the clock and enables the
+ * clock if not already enabled. The parent clock tree is recursively enabled
+ */
+int clk_enable(struct clk *clk)
+{
+	int ret = 0;
+
+	if (!clk)
+		return -EINVAL;
+
+	mutex_lock(&clocks_mutex);
+	ret = __clk_enable(clk);
+	mutex_unlock(&clocks_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(clk_enable);
+
+/* This function decrements the reference count on the clock and disables
+ * the clock when reference count is 0. The parent clock tree is
+ * recursively disabled
+ */
+void clk_disable(struct clk *clk)
+{
+	if (!clk)
+		return;
+
+	mutex_lock(&clocks_mutex);
+	__clk_disable(clk);
+	mutex_unlock(&clocks_mutex);
+}
+EXPORT_SYMBOL_GPL(clk_disable);
+
+/* Retrieve the *current* clock rate. If the clock itself
+ * does not provide a special calculation routine, ask
+ * its parent and so on, until one is able to return
+ * a valid clock rate
+ */
+unsigned long clk_get_rate(struct clk *clk)
+{
+	if (!clk)
+		return 0UL;
+
+	if (clk->get_rate)
+		return clk->get_rate(clk);
+
+	return clk_get_rate(clk->parent);
+}
+EXPORT_SYMBOL_GPL(clk_get_rate);
+
+/* Round the requested clock rate to the nearest supported
+ * rate that is less than or equal to the requested rate.
+ * This is dependent on the clock's current parent.
+ */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	if (!clk)
+		return 0;
+	if (!clk->round_rate)
+		return 0;
+
+	return clk->round_rate(clk, rate);
+}
+EXPORT_SYMBOL_GPL(clk_round_rate);
+
+/* Set the clock to the requested clock rate. The rate must
+ * match a supported rate exactly based on what clk_round_rate returns
+ */
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	int ret = -EINVAL;
+
+	if (!clk)
+		return ret;
+	if (!clk->set_rate || !rate)
+		return ret;
+
+	mutex_lock(&clocks_mutex);
+	ret = clk->set_rate(clk, rate);
+	mutex_unlock(&clocks_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(clk_set_rate);
+
+/* Set the clock's parent to another clock source */
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	int ret = -EINVAL;
+
+	if (!clk)
+		return ret;
+	if (!clk->set_parent || !parent)
+		return ret;
+
+	mutex_lock(&clocks_mutex);
+	ret = clk->set_parent(clk, parent);
+	if (ret == 0)
+		clk->parent = parent;
+	mutex_unlock(&clocks_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(clk_set_parent);
+
+/* Retrieve the clock's parent clock source */
+struct clk *clk_get_parent(struct clk *clk)
+{
+	if (!clk)
+		return NULL;
+
+	return clk->parent;
+}
+EXPORT_SYMBOL_GPL(clk_get_parent);
+
diff --git a/arch/arm/plat-tcc/include/mach/clkdev.h b/arch/arm/plat-tcc/include/mach/clkdev.h
new file mode 100644
index 0000000..04b37a8
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/clkdev.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
diff --git a/arch/arm/plat-tcc/include/mach/clock.h b/arch/arm/plat-tcc/include/mach/clock.h
new file mode 100644
index 0000000..a12f58a
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/clock.h
@@ -0,0 +1,48 @@
+/*
+ * Low level clock header file for Telechips TCC architecture
+ * (C) 2010 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the GPL v2.
+ */
+
+#ifndef __ASM_ARCH_TCC_CLOCK_H__
+#define __ASM_ARCH_TCC_CLOCK_H__
+
+#ifndef __ASSEMBLY__
+
+struct clk {
+	struct clk *parent;
+	/* id number of a root clock, 0 for normal clocks */
+	int root_id;
+	/* Reference count of clock enable/disable */
+	int refcount;
+	/* Address of associated BCLKCTRx register. Must be set. */
+	void __iomem *bclkctr;
+	/* Bit position for BCLKCTRx. Must be set. */
+	int bclk_shift;
+	/* Address of ACLKxxx register, if any. */
+	void __iomem *aclkreg;
+	/* get the current clock rate (always a fresh value) */
+	unsigned long (*get_rate) (struct clk *);
+	/* Function ptr to set the clock to a new rate. The rate must match a
+	   supported rate returned from round_rate. Leave blank if clock is not
+	   programmable */
+	int (*set_rate) (struct clk *, unsigned long);
+	/* Function ptr to round the requested clock rate to the nearest
+	   supported rate that is less than or equal to the requested rate. */
+	unsigned long (*round_rate) (struct clk *, unsigned long);
+	/* Function ptr to enable the clock. Leave blank if clock can not
+	   be gated. */
+	int (*enable) (struct clk *);
+	/* Function ptr to disable the clock. Leave blank if clock can not
+	   be gated. */
+	void (*disable) (struct clk *);
+	/* Function ptr to set the parent clock of the clock. */
+	int (*set_parent) (struct clk *, struct clk *);
+};
+
+int clk_register(struct clk *clk);
+void clk_unregister(struct clk *clk);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_ARCH_MXC_CLOCK_H__ */
-- 
1.6.3.3

[PATCH 03/07] Introduce plat-tcc irq framework

[Hans J. Koch]

Introduce lowlevel interrupt routines.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/mach-tcc8k/Makefile          |    3 +-
 arch/arm/mach-tcc8k/irq.c             |  113 +++++++++++++++++++++++++++++++++
 arch/arm/plat-tcc/include/mach/irqs.h |   84 ++++++++++++++++++++++++
 3 files changed, 199 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/irq.c
 create mode 100644 arch/arm/plat-tcc/include/mach/irqs.h

diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 805d850..24356e9 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,4 +3,5 @@
 #
 
 # Common support
-obj-y += clock.o
+obj-y += clock.o irq.o
+
diff --git a/arch/arm/mach-tcc8k/irq.c b/arch/arm/mach-tcc8k/irq.c
new file mode 100644
index 0000000..4d72859
--- /dev/null
+++ b/arch/arm/mach-tcc8k/irq.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) Telechips, Inc.
+ * Copyright (C) 2009-2010 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GNU GPL version 2.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <asm/io.h>
+
+#include <mach/tcc8k-regs.h>
+#include <mach/irqs.h>
+
+/* Disable IRQ */
+static void tcc8000_mask_ack_irq0(unsigned int irq)
+{
+	PIC0_IEN &= ~(1 << irq);
+	PIC0_CREQ |=  (1 << irq);
+}
+
+static void tcc8000_mask_ack_irq1(unsigned int irq)
+{
+	PIC1_IEN &= ~(1 << (irq - 32));
+	PIC1_CREQ |= (1 << (irq - 32));
+}
+
+static void tcc8000_mask_irq0(unsigned int irq)
+{
+	PIC0_IEN &= ~(1 << irq);
+}
+
+static void tcc8000_mask_irq1(unsigned int irq)
+{
+	PIC1_IEN &= ~(1 << (irq - 32));
+}
+
+static void tcc8000_ack_irq0(unsigned int irq)
+{
+	PIC0_CREQ |=  (1 << irq);
+}
+
+static void tcc8000_ack_irq1(unsigned int irq)
+{
+	PIC1_CREQ |= (1 << (irq - 32));
+}
+
+/* Enable IRQ */
+static void tcc8000_unmask_irq0(unsigned int irq)
+{
+	PIC0_IEN |= (1 << irq);
+	PIC0_INTOEN |= (1 << irq);
+}
+
+static void tcc8000_unmask_irq1(unsigned int irq)
+{
+	PIC1_IEN |= (1 << (irq - 32));
+	PIC1_INTOEN |= (1 << (irq - 32));
+}
+
+static struct irq_chip tcc8000_irq_chip0 = {
+	.name		= "tcc_irq0",
+	.mask		= tcc8000_mask_irq0,
+	.ack		= tcc8000_ack_irq0,
+	.mask_ack	= tcc8000_mask_ack_irq0,
+	.unmask		= tcc8000_unmask_irq0,
+};
+
+static struct irq_chip tcc8000_irq_chip1 = {
+	.name		= "tcc_irq1",
+	.mask		= tcc8000_mask_irq1,
+	.ack		= tcc8000_ack_irq1,
+	.mask_ack	= tcc8000_mask_ack_irq1,
+	.unmask		= tcc8000_unmask_irq1,
+};
+
+void __init tcc8k_init_irq(void)
+{
+	int irqno;
+
+	/* Mask and clear all interrupts */
+	PIC0_IEN = 0x00000000;
+	PIC0_CREQ = 0xffffffff;
+	PIC1_IEN = 0x00000000;
+	PIC1_CREQ = 0xffffffff;
+
+	PIC0_MEN0 = 0x00000003;
+	PIC1_MEN1 = 0x00000003;
+	PIC1_MEN = 0x00000003;
+
+	/* let all IRQs be level triggered */
+	PIC0_TMODE = 0xffffffff;
+	PIC1_TMODE = 0xffffffff;
+	/* all IRQs are IRQs (not FIQs) */
+	PIC0_IRQSEL = 0xffffffff;
+	PIC1_IRQSEL = 0xffffffff;
+
+	for (irqno = 0; irqno < NR_IRQS; irqno++) {
+		if (irqno < 32)
+			set_irq_chip(irqno, &tcc8000_irq_chip0);
+		else
+			set_irq_chip(irqno, &tcc8000_irq_chip1);
+		set_irq_handler(irqno, handle_level_irq);
+		set_irq_flags(irqno, IRQF_VALID);
+	}
+}
+
diff --git a/arch/arm/plat-tcc/include/mach/irqs.h b/arch/arm/plat-tcc/include/mach/irqs.h
new file mode 100644
index 0000000..2e6bed8
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/irqs.h
@@ -0,0 +1,84 @@
+/*
+ * IRQ definitions for TCC8xxx
+ *
+ * Copyright (C) 2008-2009 Telechips
+ * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GPL v2.
+ *
+ */
+
+#ifndef __ASM_ARCH_TCC_IRQS_H
+#define __ASM_ARCH_TCC_IRQS_H
+
+#define NR_IRQS 64
+
+/* PIC0 interrupts */
+#define INT_ADMA1	0
+#define INT_BDMA	1
+#define INT_ADMA0	2
+#define INT_GDMA1	3
+#define INT_I2S0RX	4
+#define INT_I2S0TX	5
+#define INT_TC		6
+#define INT_UART0	7
+#define INT_USBD	8
+#define INT_SPI0TX	9
+#define INT_UDMA	10
+#define INT_LIRQ	11
+#define INT_GDMA2	12
+#define INT_GDMA0	13
+#define INT_TC32	14
+#define INT_LCD		15
+#define INT_ADC		16
+#define INT_I2C		17
+#define INT_RTCP	18
+#define INT_RTCA	19
+#define INT_NFC		20
+#define INT_SD0		21
+#define INT_GSB0	22
+#define INT_PK		23
+#define INT_USBH0	24
+#define INT_USBH1	25
+#define INT_G2D		26
+#define INT_ECC		27
+#define INT_SPI0RX	28
+#define INT_UART1	29
+#define INT_MSCL	30
+#define INT_GSB1	31
+/* PIC1 interrupts */
+#define INT_E0		32
+#define INT_E1		33
+#define INT_E2		34
+#define INT_E3		35
+#define INT_E4		36
+#define INT_E5		37
+#define INT_E6		38
+#define INT_E7		39
+#define INT_UART2	40
+#define INT_UART3	41
+#define INT_SPI1TX	42
+#define INT_SPI1RX	43
+#define INT_GSB2	44
+#define INT_SPDIF	45
+#define INT_CDIF	46
+#define INT_VBON	47
+#define INT_VBOFF	48
+#define INT_SD1		49
+#define INT_UART4	50
+#define INT_GDMA3	51
+#define INT_I2S1RX	52
+#define INT_I2S1TX	53
+#define INT_CAN0	54
+#define INT_CAN1	55
+#define INT_GSB3	56
+#define INT_KRST	57
+#define INT_UNUSED	58
+#define INT_SD0D3	59
+#define INT_SD1D3	60
+#define INT_GPS0	61
+#define INT_GPS1	62
+#define INT_GPS2	63
+
+#endif  /* ASM_ARCH_TCC_IRQS_H */
+
-- 
1.6.3.3

[PATCH 04/07] Add TCC8xxx system timer

[Hans J. Koch]

Add the system timer using clockevents with the internal TC32 timer.
This also adds a clocksource using the same timer.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/Kconfig                       |    1 +
 arch/arm/mach-tcc8k/Makefile           |    2 +-
 arch/arm/mach-tcc8k/time.c             |  150 ++++++++++++++++++++++++++++++++
 arch/arm/plat-tcc/include/mach/timex.h |    5 +
 4 files changed, 157 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/time.c
 create mode 100644 arch/arm/plat-tcc/include/mach/timex.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8b9429c..7c6e731 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -728,6 +728,7 @@ config ARCH_TCC_926
 	select CPU_ARM926T
 	select HAVE_CLK
 	select COMMON_CLKDEV
+	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Telechips TCC ARM926-based systems.
diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 24356e9..5673868 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,5 +3,5 @@
 #
 
 # Common support
-obj-y += clock.o irq.o
+obj-y += clock.o irq.o time.o
 
diff --git a/arch/arm/mach-tcc8k/time.c b/arch/arm/mach-tcc8k/time.c
new file mode 100644
index 0000000..db0a6da
--- /dev/null
+++ b/arch/arm/mach-tcc8k/time.c
@@ -0,0 +1,150 @@
+/*
+ * TCC8000 system timer setup
+ *
+ * (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GPL version 2.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/clockchips.h>
+
+#include <asm/io.h>
+#include <asm/mach/time.h>
+
+#include <mach/tcc8k-regs.h>
+#include <mach/irqs.h>
+
+static void __iomem *timer_base;
+static struct clock_event_device clockevent_tcc;
+static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED;
+
+static cycle_t tcc_get_cycles(struct clocksource *cs)
+{
+	return __raw_readl(timer_base + TC32MCNT_OFFS);
+}
+
+static struct clocksource clocksource_tcc = {
+	.name		= "tcc_tc32",
+	.rating		= 200,
+	.read		= tcc_get_cycles,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.shift		= 28,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int tcc_set_next_event(unsigned long evt,
+			      struct clock_event_device *unused)
+{
+	unsigned long reg = __raw_readl(timer_base + TC32MCNT_OFFS);
+
+	__raw_writel(reg + evt, timer_base + TC32CMP0_OFFS);
+	return 0;
+}
+
+static void tcc_set_mode(enum clock_event_mode mode,
+				struct clock_event_device *evt)
+{
+	unsigned long tc32irq;
+
+	clockevent_mode = mode;
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_ONESHOT:
+		tc32irq = __raw_readl(timer_base + TC32IRQ_OFFS);
+		tc32irq |= TC32IRQ_IRQEN0;
+		__raw_writel(tc32irq, timer_base + TC32IRQ_OFFS);
+		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+		tc32irq = __raw_readl(timer_base + TC32IRQ_OFFS);
+		tc32irq &= ~TC32IRQ_IRQEN0;
+		__raw_writel(tc32irq, timer_base + TC32IRQ_OFFS);
+		break;
+	case CLOCK_EVT_MODE_PERIODIC:
+	case CLOCK_EVT_MODE_RESUME:
+		break;
+	}
+}
+
+static irqreturn_t tcc8k_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = &clockevent_tcc;
+
+	/* Acknowledge TC32 interrupt by reading TC32IRQ */
+	__raw_readl(timer_base + TC32IRQ_OFFS);
+
+	evt->event_handler(evt);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction tcc8k_timer_irq = {
+	.name		= "TC32_timer",
+	.flags		= IRQF_DISABLED | IRQF_TIMER,
+	.handler	= tcc8k_timer_interrupt,
+};
+
+static struct clock_event_device clockevent_tcc = {
+	.name		= "tcc_timer1",
+	.features	= CLOCK_EVT_FEAT_ONESHOT,
+	.shift		= 32,
+	.set_mode	= tcc_set_mode,
+	.set_next_event	= tcc_set_next_event,
+	.rating		= 200,
+};
+
+static int __init tcc_clockevent_init(struct clk *clock)
+{
+	unsigned int c = clk_get_rate(clock);
+
+	clocksource_tcc.mult = clocksource_hz2mult(c,
+					clocksource_tcc.shift);
+	clocksource_register(&clocksource_tcc);
+
+	clockevent_tcc.mult = div_sc(c, NSEC_PER_SEC,
+					clockevent_tcc.shift);
+	clockevent_tcc.max_delta_ns =
+			clockevent_delta2ns(0xfffffffe, &clockevent_tcc);
+	clockevent_tcc.min_delta_ns =
+			clockevent_delta2ns(0xff, &clockevent_tcc);
+
+	clockevent_tcc.cpumask = cpumask_of(0);
+
+	clockevents_register_device(&clockevent_tcc);
+
+	return 0;
+}
+
+void __init tcc8k_timer_init(struct clk *clock, void __iomem *base, int irq)
+{
+	u32 reg;
+
+	timer_base = base;
+	tcc8k_timer_irq.irq = irq;
+
+	/* Enable clocks */
+	clk_enable(clock);
+
+	/* Initialize 32-bit timer */
+	reg = __raw_readl(timer_base + TC32EN_OFFS);
+	reg &= ~TC32EN_ENABLE; /* Disable timer */
+	__raw_writel(reg, timer_base + TC32EN_OFFS);
+	/* Free running timer, counting from 0 to 0xffffffff */
+	__raw_writel(0, timer_base + TC32EN_OFFS);
+	__raw_writel(0, timer_base + TC32LDV_OFFS);
+	reg = __raw_readl(timer_base + TC32IRQ_OFFS);
+	reg |= TC32IRQ_IRQEN0; /* irq at match with CMP0 */
+	__raw_writel(reg, timer_base + TC32IRQ_OFFS);
+
+	__raw_writel(TC32EN_ENABLE, timer_base + TC32EN_OFFS);
+
+	tcc_clockevent_init(clock);
+	setup_irq(irq, &tcc8k_timer_irq);
+}
diff --git a/arch/arm/plat-tcc/include/mach/timex.h b/arch/arm/plat-tcc/include/mach/timex.h
new file mode 100644
index 0000000..057acbe
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/timex.h
@@ -0,0 +1,5 @@
+/*
+ * A definition needed by arch core code.
+ *
+ */
+#define CLOCK_TICK_RATE		(HZ * 100000UL)
-- 
1.6.3.3

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

Map the IO ranges of TCC8xxx peripherals.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/mach-tcc8k/Makefile        |    2 +-
 arch/arm/mach-tcc8k/io.c            |   82 +++++++++++++++++++++++++++++++++++
 arch/arm/plat-tcc/include/mach/io.h |   53 ++++++++++++++++++++++
 3 files changed, 136 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/io.c
 create mode 100644 arch/arm/plat-tcc/include/mach/io.h

diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 5673868..09552e2 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,5 +3,5 @@
 #
 
 # Common support
-obj-y += clock.o irq.o time.o
+obj-y += clock.o irq.o time.o io.o
 
diff --git a/arch/arm/mach-tcc8k/io.c b/arch/arm/mach-tcc8k/io.c
new file mode 100644
index 0000000..1187fca
--- /dev/null
+++ b/arch/arm/mach-tcc8k/io.c
@@ -0,0 +1,82 @@
+/*
+ * linux/arch/arm/mach-tcc8k/io.c
+ *
+ * (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * derived from TCC83xx io.c
+ * Copyright (C) Telechips, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/tlb.h>
+#include <asm/mach/map.h>
+#include <asm/io.h>
+
+#include <mach/tcc8k-regs.h>
+
+/*
+ * The machine specific code may provide the extra mapping besides the
+ * default mapping provided here.
+ */
+static struct map_desc tcc8k_io_desc[] __initdata = {
+	{
+		.virtual	= CS1_BASE_VIRT,	/* CS1 (CS8900) */
+		.pfn		= __phys_to_pfn(CS1_BASE),
+		.length		= CS1_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= AHB_PERI_BASE_VIRT,	/* AHB peripherals */
+		.pfn		= __phys_to_pfn(AHB_PERI_BASE),
+		.length		= AHB_PERI_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= APB0_PERI_BASE_VIRT,	/* APB peripherals */
+		.pfn		= __phys_to_pfn(APB0_PERI_BASE),
+		.length		= APB0_PERI_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= APB1_PERI_BASE_VIRT,	/* APB peripherals */
+		.pfn		= __phys_to_pfn(APB1_PERI_BASE),
+		.length		= APB1_PERI_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= EXT_MEM_CTRL_BASE_VIRT, /* Ext. mem.contr. */
+		.pfn		= __phys_to_pfn(EXT_MEM_CTRL_BASE),
+		.length		= EXT_MEM_CTRL_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= INT_SRAM_BASE_VIRT,	/* Internal SRAM */
+		.pfn		= __phys_to_pfn(INT_SRAM_BASE),
+		.length		= INT_SRAM_SIZE,
+		.type		= MT_DEVICE
+	},
+	{
+		.virtual	= DATA_TCM_BASE_VIRT,	/* Data TCM */
+		.pfn		= __phys_to_pfn(DATA_TCM_BASE),
+		.length		= DATA_TCM_SIZE,
+		.type		= MT_DEVICE
+	},
+};
+
+/*
+ * Maps common IO regions for tcc8k.
+ *
+ */
+void __init tcc8k_map_common_io(void)
+{
+	iotable_init(tcc8k_io_desc, ARRAY_SIZE(tcc8k_io_desc));
+	local_flush_tlb_all();
+	flush_cache_all();
+}
+
diff --git a/arch/arm/plat-tcc/include/mach/io.h b/arch/arm/plat-tcc/include/mach/io.h
new file mode 100644
index 0000000..7d84370
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/io.h
@@ -0,0 +1,53 @@
+/*
+ * Based on:    linux/include/asm-arm/arch-sa1100/io.h
+ * Author : <linux@telechips.com>
+ * Created: June 10, 2008
+ * Description: IO definitions for TCC8300 processors and boards
+ *
+ * Copyright (C) 1997-1999 Russell King
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * Modifications for mainline (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of the GNU Public License version 2.
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)		(a)
+
+/*
+ * ----------------------------------------------------------------------------
+ * I/O mapping
+ * ----------------------------------------------------------------------------
+ */
+
+#define PCIO_BASE	0
+
+/* Address Map of Internal Peripherials (Base 0x80000000) */
+#define IO_PHYS_A			0x80000000
+#define IO_OFFSET_A			0x70000000 /* Virtual IO = 0xF0000000 */
+#define IO_SIZE_A			0x100000
+#define IO_VIRT_A			(IO_PHYS + IO_OFFSET)
+#define IO_ADDRESS_A(pa)	((pa) + IO_OFFSET)
+#define IO_P2V_A(pa)		((pa) + IO_OFFSET)
+#define IO_V2P_A(va)		((va) - IO_OFFSET)
+
+/* Address Map of Internal Peripherials (Base 0x90000000) */
+#define IO_PHYS_B			0x90000000
+#define IO_OFFSET_B			0x61000000 /* Virtual IO = 0xF1000000 */
+#define IO_SIZE_B			0x100000
+#define IO_VIRT_B			(IO_PHYS + IO_OFFSET)
+#define IO_ADDRESS_B(pa)	((pa) + IO_OFFSET)
+#define IO_P2V_B(pa)		((pa) + IO_OFFSET)
+#define IO_V2P_B(va)		((va) - IO_OFFSET)
+
+#endif
-- 
1.6.3.3

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Linus Walleij]

2010/3/22 Hans J. Koch <hjk@linutronix.de>:

> Map the IO ranges of TCC8xxx peripherals.
> (...)
> + ? ? ? {
> + ? ? ? ? ? ? ? .virtual ? ? ? ?= DATA_TCM_BASE_VIRT, ? /* Data TCM */
> + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(DATA_TCM_BASE),
> + ? ? ? ? ? ? ? .length ? ? ? ? = DATA_TCM_SIZE,
> + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> + ? ? ? },

Hey, that no peripheral, that's onchip TCM memory, MT_DEVICE is
very inappropriate since it will cause readthrough/writethrough.

Please use the generic TCM memory support as described in
Documentation/arm/tcm.txt for your TCM memory, example of
a platform using this can be found in arch/arm/mach-u300,
just grep -r for TCM. Note the flag in arch/arm/Kconfig as well.

Any problems, ask.

Yours,
Linus Walleij

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

On Mon, Mar 22, 2010 at 10:13:53PM +0100, Linus Walleij wrote:
> 2010/3/22 Hans J. Koch <hjk@linutronix.de>:
> 
> > Map the IO ranges of TCC8xxx peripherals.
> > (...)
> > + ? ? ? {
> > + ? ? ? ? ? ? ? .virtual ? ? ? ?= DATA_TCM_BASE_VIRT, ? /* Data TCM */
> > + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(DATA_TCM_BASE),
> > + ? ? ? ? ? ? ? .length ? ? ? ? = DATA_TCM_SIZE,
> > + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> > + ? ? ? },
> 
> Hey, that no peripheral, that's onchip TCM memory, MT_DEVICE is
> very inappropriate since it will cause readthrough/writethrough.
> 
> Please use the generic TCM memory support as described in
> Documentation/arm/tcm.txt for your TCM memory, example of
> a platform using this can be found in arch/arm/mach-u300,
> just grep -r for TCM. Note the flag in arch/arm/Kconfig as well.

Thanks for that hint. Will fix.

Hans

> 
> Any problems, ask.
> 
> Yours,
> Linus Walleij

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

On Mon, Mar 22, 2010 at 08:27:49PM +0100, Hans J. Koch wrote:
> Map the IO ranges of TCC8xxx peripherals.
> 
> Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
> ---
>  arch/arm/mach-tcc8k/Makefile        |    2 +-
>  arch/arm/mach-tcc8k/io.c            |   82 +++++++++++++++++++++++++++++++++++
>  arch/arm/plat-tcc/include/mach/io.h |   53 ++++++++++++++++++++++
>  3 files changed, 136 insertions(+), 1 deletions(-)
>  create mode 100644 arch/arm/mach-tcc8k/io.c
>  create mode 100644 arch/arm/plat-tcc/include/mach/io.h
> 
> diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
> index 5673868..09552e2 100644
> --- a/arch/arm/mach-tcc8k/Makefile
> +++ b/arch/arm/mach-tcc8k/Makefile
> @@ -3,5 +3,5 @@
>  #
>  
>  # Common support
> -obj-y += clock.o irq.o time.o
> +obj-y += clock.o irq.o time.o io.o
>  
> diff --git a/arch/arm/mach-tcc8k/io.c b/arch/arm/mach-tcc8k/io.c
> new file mode 100644
> index 0000000..1187fca
> --- /dev/null
> +++ b/arch/arm/mach-tcc8k/io.c
[...]
> +
> +/*
> + * Maps common IO regions for tcc8k.
> + *
> + */
> +void __init tcc8k_map_common_io(void)
> +{
> +	iotable_init(tcc8k_io_desc, ARRAY_SIZE(tcc8k_io_desc));
> +	local_flush_tlb_all();
> +	flush_cache_all();

Reviewing my own patch...
These last to "flush" lines are probably crap, at least unneeded.
I thought I threw them out, but somehow they crept in again.
Will test and fix.

Hans

> +}

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Linus Walleij]

2010/3/22 Hans J. Koch <hjk@linutronix.de>:

> Map the IO ranges of TCC8xxx peripherals.
> + ? ? ? {
> + ? ? ? ? ? ? ? .virtual ? ? ? ?= INT_SRAM_BASE_VIRT, ? /* Internal SRAM */
> + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(INT_SRAM_BASE),
> + ? ? ? ? ? ? ? .length ? ? ? ? = INT_SRAM_SIZE,
> + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> + ? ? ? },

MT_DEVICE is probably inappropriate here as well.

> + ? ? ? {
> + ? ? ? ? ? ? ? .virtual ? ? ? ?= DATA_TCM_BASE_VIRT, ? /* Data TCM */
> + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(DATA_TCM_BASE),
> + ? ? ? ? ? ? ? .length ? ? ? ? = DATA_TCM_SIZE,
> + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> + ? ? ? },

Actually, look close at your specs here, because you seem to have both
SRAM and TCM, usually you have ITCM+DTCM, so the thing that is
called SRAM may be something else.

Looking at the .h file:

+#define INT_SRAM_BASE          0x30000000
+#define INT_SRAM_SIZE          SZ_32K
(...)
+#define DATA_TCM_BASE          0xa0000000
+#define DATA_TCM_SIZE          SZ_8K

Check if the SRAM is really an SRAM and not ITCM (which can be
suspected). Also check that the DTCM is really such a thing.
(The code in arch/arm/kernel/tcm.c does this once you enable it,
it will scream if the config of the system does not match what the
CPU register is saying about ITCM+DTCM.)

If the DTCM is really an embedded TCM you can move it wherever
you want, even i physical memory space. It doesn't have to be on
0xa0000000, this is probably only the place where your boot code
locates it.

Yours,
Linus Walleij

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

On Tue, Mar 23, 2010 at 08:29:01AM +0100, Linus Walleij wrote:
> 2010/3/22 Hans J. Koch <hjk@linutronix.de>:
> 
> > Map the IO ranges of TCC8xxx peripherals.
> > + ? ? ? {
> > + ? ? ? ? ? ? ? .virtual ? ? ? ?= INT_SRAM_BASE_VIRT, ? /* Internal SRAM */
> > + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(INT_SRAM_BASE),
> > + ? ? ? ? ? ? ? .length ? ? ? ? = INT_SRAM_SIZE,
> > + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> > + ? ? ? },
> 
> MT_DEVICE is probably inappropriate here as well.
> 
> > + ? ? ? {
> > + ? ? ? ? ? ? ? .virtual ? ? ? ?= DATA_TCM_BASE_VIRT, ? /* Data TCM */
> > + ? ? ? ? ? ? ? .pfn ? ? ? ? ? ?= __phys_to_pfn(DATA_TCM_BASE),
> > + ? ? ? ? ? ? ? .length ? ? ? ? = DATA_TCM_SIZE,
> > + ? ? ? ? ? ? ? .type ? ? ? ? ? = MT_DEVICE
> > + ? ? ? },
> 
> Actually, look close at your specs here, because you seem to have both
> SRAM and TCM, usually you have ITCM+DTCM, so the thing that is
> called SRAM may be something else.
> 
> Looking at the .h file:
> 
> +#define INT_SRAM_BASE          0x30000000
> +#define INT_SRAM_SIZE          SZ_32K
> (...)
> +#define DATA_TCM_BASE          0xa0000000
> +#define DATA_TCM_SIZE          SZ_8K
> 
> Check if the SRAM is really an SRAM and not ITCM (which can be
> suspected).

I'm quite sure it's normal SRAM. I've got the boot ROM code sources, they
use it for both code and variables, like any standard SRAM. 

> Also check that the DTCM is really such a thing.

Yep, I'll do this.

> (The code in arch/arm/kernel/tcm.c does this once you enable it,
> it will scream if the config of the system does not match what the
> CPU register is saying about ITCM+DTCM.)

OK, will try.

> 
> If the DTCM is really an embedded TCM you can move it wherever
> you want, even i physical memory space. It doesn't have to be on
> 0xa0000000, this is probably only the place where your boot code
> locates it.

Thanks a lot for your detailed review and your hints.

Hans

> 
> Yours,
> Linus Walleij

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Linus Walleij]

2010/3/23 Hans J. Koch <hjk@linutronix.de>:
> On Tue, Mar 23, 2010 at 08:29:01AM +0100, Linus Walleij wrote:
>> 2010/3/22 Hans J. Koch <hjk@linutronix.de>:
>> Also check that the DTCM is really such a thing.
>
> Yep, I'll do this.

If you really have a system with *only* DTCM and no ITCM, I don't
know if the TCM support in the kernel works with that right now,
I've never seen a system with just ITCM or just DTCM, but if
you can help me testing I will try to fix it up.

Linus

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

On Fri, Mar 26, 2010 at 06:28:13PM +0100, Linus Walleij wrote:
> 2010/3/23 Hans J. Koch <hjk@linutronix.de>:
> > On Tue, Mar 23, 2010 at 08:29:01AM +0100, Linus Walleij wrote:
> >> 2010/3/22 Hans J. Koch <hjk@linutronix.de>:
> >> Also check that the DTCM is really such a thing.
> >
> > Yep, I'll do this.
> 
> If you really have a system with *only* DTCM and no ITCM, I don't
> know if the TCM support in the kernel works with that right now,

It won't, AFAICT. I removed TCM from the mappings in v2. Unfortunately,
the Telechips manual doesn't say much about it, but always calls it
"DTCM" or "Data TCM". I'll try to get more information, and come up
with a patch later. It's not really important ATM.

> I've never seen a system with just ITCM or just DTCM, but if
> you can help me testing I will try to fix it up.

If I change things in arch/arm/kernel/tcm.c, I'll Cc: you anyway since
you're mentioned in the header. The code itself seems quite clear.

Thanks,
Hans

> 
> Linus

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Linus Walleij]

2010/3/26 Hans J. Koch <hjk@linutronix.de>:

>> If you really have a system with *only* DTCM and no ITCM, I don't
>> know if the TCM support in the kernel works with that right now,
>
> It won't, AFAICT. I removed TCM from the mappings in v2. Unfortunately,
> the Telechips manual doesn't say much about it, but always calls it
> "DTCM" or "Data TCM". I'll try to get more information, and come up
> with a patch later. It's not really important ATM.

You really only need to include a call to
u32 tcm_status = read_cpuid_tcmstatus();
pr_info("TCM status 0x%08x", tcm_status);

To find out what kind of TCMs you have on your system,
if they are true TCMs!

Bit 1 is set if you have some ITCM, bit 16 is set if you have
some DTCM. Else it's something custom.

Linus

[PATCH 05/07] Basic IO mappings for mach-tcc8k

[Hans J. Koch]

On Sat, Mar 27, 2010 at 10:33:22AM +0100, Linus Walleij wrote:
> 2010/3/26 Hans J. Koch <hjk@linutronix.de>:
> 
> >> If you really have a system with *only* DTCM and no ITCM, I don't
> >> know if the TCM support in the kernel works with that right now,
> >
> > It won't, AFAICT. I removed TCM from the mappings in v2. Unfortunately,
> > the Telechips manual doesn't say much about it, but always calls it
> > "DTCM" or "Data TCM". I'll try to get more information, and come up
> > with a patch later. It's not really important ATM.
> 
> You really only need to include a call to
> u32 tcm_status = read_cpuid_tcmstatus();
> pr_info("TCM status 0x%08x", tcm_status);
> 
> To find out what kind of TCMs you have on your system,
> if they are true TCMs!
> 
> Bit 1 is set if you have some ITCM, bit 16 is set if you have
> some DTCM. Else it's something custom.

Yep, that's what I saw in your code. I'll try that as soon as I've got the
time.

Thanks,
Hans

> 
> Linus

[PATCH 06/07] Add common platform devices for TCC8xxx SoCs

[Hans J. Koch]

This patch introduces a first set of platform devices for integrated
peripherals of TCC8xxx processors. Drivers for these devices are
available and will be posted in a second step.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/mach-tcc8k/Makefile  |    2 +-
 arch/arm/mach-tcc8k/devices.c |  274 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 275 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/devices.c

diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 09552e2..e8a1134 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,5 +3,5 @@
 #
 
 # Common support
-obj-y += clock.o irq.o time.o io.o
+obj-y += clock.o irq.o time.o io.o devices.o
 
diff --git a/arch/arm/mach-tcc8k/devices.c b/arch/arm/mach-tcc8k/devices.c
new file mode 100644
index 0000000..b6273af
--- /dev/null
+++ b/arch/arm/mach-tcc8k/devices.c
@@ -0,0 +1,274 @@
+/*
+ * linux/arch/arm/mach-tcc8k/devices.c
+ *
+ * Copyright (C) Telechips, Inc.
+ * Modifications for mainline (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of GPL v2.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include <asm/mach/map.h>
+
+#include <mach/tcc8k-regs.h>
+#include <mach/irqs.h>
+
+static u64 tcc8k_dmamask = DMA_BIT_MASK(32);
+
+#ifdef CONFIG_MTD_NAND_TCC
+/* NAND controller */
+static struct resource tcc_nand_resources[] = {
+	{
+		.start	= NFC_BASE,
+		.end	= NFC_BASE + 0x7f,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= INT_NFC,
+		.end	= INT_NFC,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device tcc_nand_device = {
+	.name = "tcc_nand",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(tcc_nand_resources),
+	.resource = tcc_nand_resources,
+};
+#endif
+
+#ifdef CONFIG_MMC_TCC8K
+/* MMC controller */
+static struct resource tcc8k_mmc0_resource[] = {
+	{
+		.start = INT_SD0,
+		.end   = INT_SD0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct resource tcc8k_mmc1_resource[] = {
+	{
+		.start = INT_SD1,
+		.end   = INT_SD1,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device tcc8k_mmc0_device = {
+	.name		= "tcc-mmc",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(tcc8k_mmc0_resource),
+	.resource	= tcc8k_mmc0_resource,
+	.dev		= {
+		.dma_mask		= &tcc8k_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	}
+};
+
+struct platform_device tcc8k_mmc1_device = {
+	.name		= "tcc-mmc",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(tcc8k_mmc1_resource),
+	.resource	= tcc8k_mmc1_resource,
+	.dev		= {
+		.dma_mask		= &tcc8k_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	}
+};
+
+static inline void tcc8k_init_mmc(void)
+{
+	u32 reg = __raw_readl(GPIOPS_BASE + GPIOPS_FS1_OFFS);
+
+	reg |= GPIOPS_FS1_SDH0_BITS | GPIOPS_FS1_SDH1_BITS;
+	__raw_writel(reg, GPIOPS_BASE + GPIOPS_FS1_OFFS);
+
+	platform_device_register(&tcc8k_mmc0_device);
+	platform_device_register(&tcc8k_mmc1_device);
+}
+#else
+static inline void tcc8k_init_mmc(void) { }
+#endif
+
+#ifdef CONFIG_SERIAL_TCC
+static struct resource uart0_resources[] = {
+	[0] = {
+		.start	= UART0_BASE,
+		.end	= UART0_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= INT_UART0,
+		.end	= INT_UART0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device tcc8k_uart0_device = {
+	.name		= "tcc-uart",
+	.id		= 0,
+	.resource	= uart0_resources,
+	.num_resources	= ARRAY_SIZE(uart0_resources),
+};
+
+static inline void tcc8k_init_uart(void)
+{
+	u32 reg = __raw_readl(GPIOPU_BASE + GPIOPU_FS0_OFFS);
+
+	reg |= GPIOPU_FS0_TXD0 | GPIOPU_FS0_RXD0 |
+		GPIOPU_FS0_CTS0 | GPIOPU_FS0_RTS0;
+	__raw_writel(reg, GPIOPU_BASE + GPIOPU_FS0_OFFS);
+
+	platform_device_register(&tcc8k_uart0_device);
+}
+#else
+static inline void tcc8k_init_uart(void) { }
+#endif
+
+#ifdef CONFIG_USB_OHCI_HCD
+static int tcc8k_ohci_init(struct device *dev)
+{
+	u32 reg;
+
+	/* Use GPIO PK19 as VBUS control output */
+	reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS0_OFFS);
+	reg &= ~(1 << 19);
+	__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS0_OFFS);
+	reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS1_OFFS);
+	reg &= ~(1 << 19);
+	__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS1_OFFS);
+
+	reg = __raw_readl(GPIOPK_BASE + GPIOPK_DOE_OFFS);
+	reg |= (1 << 19);
+	__raw_writel(reg, GPIOPK_BASE + GPIOPK_DOE_OFFS);
+	/* Turn on VBUS */
+	reg = __raw_readl(GPIOPK_BASE + GPIOPK_DAT_OFFS);
+	reg |= (1 << 19);
+	__raw_writel(reg, GPIOPK_BASE + GPIOPK_DAT_OFFS);
+
+	return 0;
+}
+
+static struct resource tcc8k_ohci0_resources[] = {
+	[0] = {
+		.start = USBH0_BASE,
+		.end   = USBH0_BASE + 0x5c,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = INT_USBH0,
+		.end   = INT_USBH0,
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct resource tcc8k_ohci1_resources[] = {
+	[0] = {
+		.start = USBH1_BASE,
+		.end   = USBH1_BASE + 0x5c,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = INT_USBH1,
+		.end   = INT_USBH1,
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct tccohci_platform_data tcc8k_ohci0_platform_data = {
+	.controller	= 0,
+	.port_mode	= PMM_PERPORT_MODE,
+	.init		= tcc8k_ohci_init,
+};
+
+static struct tccohci_platform_data tcc8k_ohci1_platform_data = {
+	.controller	= 1,
+	.port_mode	= PMM_PERPORT_MODE,
+	.init		= tcc8k_ohci_init,
+};
+
+static struct platform_device ohci0_device = {
+	.name = "tcc-ohci",
+	.id = 0,
+	.dev = {
+		.dma_mask = &tcc8k_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = &tcc8k_ohci0_platform_data,
+	},
+	.num_resources  = ARRAY_SIZE(tcc8k_ohci0_resources),
+	.resource       = tcc8k_ohci0_resources,
+};
+
+static struct platform_device ohci1_device = {
+	.name = "tcc-ohci",
+	.id = 1,
+	.dev = {
+		.dma_mask = &tcc8k_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = &tcc8k_ohci1_platform_data,
+	},
+	.num_resources  = ARRAY_SIZE(tcc8k_ohci1_resources),
+	.resource       = tcc8k_ohci1_resources,
+};
+
+static void __init tcc8k_init_usbhost(void)
+{
+	platform_device_register(&ohci0_device);
+	platform_device_register(&ohci1_device);
+}
+#else
+static void __init tcc8k_init_usbhost(void) { }
+#endif
+
+/* USB device controller*/
+#ifdef CONFIG_USB_GADGET_TCC8K
+static struct resource udc_resources[] = {
+	[0] = {
+		.start = INT_USBD,
+		.end   = INT_USBD,
+		.flags = IORESOURCE_IRQ,
+	},
+	[1] = {
+		.start = INT_UDMA,
+		.end   = INT_UDMA,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device tcc8k_udc_device = {
+	.name = "tcc-udc",
+	.id = 0,
+	.resource = udc_resources,
+	.num_resources = ARRAY_SIZE(udc_resources),
+	.dev = {
+		 .dma_mask = &tcc8k_dmamask,
+		 .coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+static void __init tcc8k_init_usb_gadget(void)
+{
+	platform_device_register(&tcc8k_udc_device);
+}
+#else
+static void __init tcc8k_init_usb_gadget(void) { }
+#endif	/* CONFIG_USB_GADGET_TCC83X */
+
+static int __init tcc8k_init_devices(void)
+{
+	tcc8k_init_uart();
+	tcc8k_init_mmc();
+	tcc8k_init_usbhost();
+	tcc8k_init_usb_gadget();
+	return 0;
+}
+
+arch_initcall(tcc8k_init_devices);
-- 
1.6.3.3

[PATCH 07/07] Add board support for Telechips TCC8000-SDK board

[Hans J. Koch]

Add support for the Telechips TCC8000-SDK development board.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
---
 arch/arm/mach-tcc8k/Kconfig             |    6 +++
 arch/arm/mach-tcc8k/Makefile            |    3 ++
 arch/arm/mach-tcc8k/Makefile.boot       |    3 ++
 arch/arm/mach-tcc8k/board-tcc8000-sdk.c |   59 +++++++++++++++++++++++++++++++
 arch/arm/mach-tcc8k/board-tcc8000-sdk.h |   18 +++++++++
 5 files changed, 89 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-tcc8k/Makefile.boot
 create mode 100644 arch/arm/mach-tcc8k/board-tcc8000-sdk.c
 create mode 100644 arch/arm/mach-tcc8k/board-tcc8000-sdk.h

diff --git a/arch/arm/mach-tcc8k/Kconfig b/arch/arm/mach-tcc8k/Kconfig
index ec7f71b..ad86415 100644
--- a/arch/arm/mach-tcc8k/Kconfig
+++ b/arch/arm/mach-tcc8k/Kconfig
@@ -2,4 +2,10 @@ if ARCH_TCC8K
 
 comment "TCC8000 systems:"
 
+config MACH_TCC8000_SDK
+	bool "Telechips TCC8000-SDK development kit"
+	default y
+	help
+	  Support for the Telechips TCC8000-SDK board.
+
 endif
diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index e8a1134..cd92cde 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -5,3 +5,6 @@
 # Common support
 obj-y += clock.o irq.o time.o io.o devices.o
 
+# Specific board support
+obj-$(CONFIG_MACH_TCC8000_SDK) += board-tcc8000-sdk.o
+
diff --git a/arch/arm/mach-tcc8k/Makefile.boot b/arch/arm/mach-tcc8k/Makefile.boot
new file mode 100644
index 0000000..f135c9d
--- /dev/null
+++ b/arch/arm/mach-tcc8k/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y		:= 0x20008000
+params_phys-y		:= 0x20000100
+initrd_phys-y		:= 0x20800000
diff --git a/arch/arm/mach-tcc8k/board-tcc8000-sdk.c b/arch/arm/mach-tcc8k/board-tcc8000-sdk.c
new file mode 100644
index 0000000..545e586
--- /dev/null
+++ b/arch/arm/mach-tcc8k/board-tcc8000-sdk.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+
+#include "board-tcc8000-sdk.h"
+
+#ifdef CONFIG_MTD_NAND_TCC
+/* NAND */
+static struct tcc_nand_platform_data tcc8k_sdk_nand_data = {
+	.width = 1,
+	.hw_ecc = 0,
+};
+#endif
+
+static void __init tcc8k_init(void)
+{
+#ifdef CONFIG_MTD_NAND_TCC
+	tcc_nand_device.dev.platform_data = &tcc8k_sdk_nand_data;
+	platform_device_register(&tcc_nand_device);
+#endif
+}
+
+static void __init tcc8k_timer_init(void)
+{
+	tcc_clocks_init(XI_FREQUENCY, XTI_FREQUENCY);
+}
+
+static struct sys_timer tcc8k_timer = {
+	.init	= tcc8k_timer_init,
+};
+
+static void __init tcc8k_map_io(void)
+{
+	tcc8k_map_common_io();
+}
+
+MACHINE_START(TCC8000_SDK, "Telechips TCC8000-SDK Demo Board")
+	.phys_io	= 0x90000000,
+	.io_pg_offst	= ((0xf1000000) >> 18) & 0xfffc,
+	.boot_params	= PHYS_OFFSET + 0x00000100,
+	.map_io		= tcc8k_map_io,
+	.init_irq	= tcc8k_init_irq,
+	.init_machine	= tcc8k_init,
+	.timer		= &tcc8k_timer,
+MACHINE_END
diff --git a/arch/arm/mach-tcc8k/board-tcc8000-sdk.h b/arch/arm/mach-tcc8k/board-tcc8000-sdk.h
new file mode 100644
index 0000000..1d4e791
--- /dev/null
+++ b/arch/arm/mach-tcc8k/board-tcc8000-sdk.h
@@ -0,0 +1,18 @@
+/*
+ * Some defines for arch/arm/mach-tcc8k/board-tcc8000-sdk.c
+ *
+ */
+
+#ifndef _BOARD_TCC_8000_SDK_H_
+#define _BOARD_TCC_8000_SDK_H_
+
+extern void __init tcc8k_init_irq(void);
+extern void __init tcc8k_map_common_io(void);
+extern int __init tcc_clocks_init(unsigned long xi_freq,
+					unsigned long xti_freq);
+extern struct platform_device tcc_nand_device;
+
+#define XI_FREQUENCY	12000000
+#define XTI_FREQUENCY	32768
+
+#endif
-- 
1.6.3.3