Merge branch 'wells/lpc32xx-arch_v2' of git://git.lpclinux.com/linux-2.6-lpc into devel-stable

93 files changed, 5152 insertions, 224 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c1e0cdfd1147..738f404d5e34 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -483,6 +483,19 @@ config ARCH_LOKI
 	help
 	  Support for the Marvell Loki (88RC8480) SoC.
 
+config ARCH_LPC32XX
+	bool "NXP LPC32XX"
+	select CPU_ARM926T
+	select ARCH_REQUIRE_GPIOLIB
+	select HAVE_IDE
+	select ARM_AMBA
+	select USB_ARCH_HAS_OHCI
+	select COMMON_CLKDEV
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	help
+	  Support for the NXP LPC32XX family of processors
+
 config ARCH_MV78XX0
 	bool "Marvell MV78xx0"
 	select CPU_FEROCEON
@@ -847,6 +860,8 @@ source "arch/arm/mach-lh7a40x/Kconfig"
 
 source "arch/arm/mach-loki/Kconfig"
 
+source "arch/arm/mach-lpc32xx/Kconfig"
+
 source "arch/arm/mach-msm/Kconfig"
 
 source "arch/arm/mach-mv78xx0/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ddf6da158ad8..71cbb17ff89c 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -146,6 +146,7 @@ machine-$(CONFIG_ARCH_KS8695)		:= ks8695
 machine-$(CONFIG_ARCH_L7200)		:= l7200
 machine-$(CONFIG_ARCH_LH7A40X)		:= lh7a40x
 machine-$(CONFIG_ARCH_LOKI) 		:= loki
+machine-$(CONFIG_ARCH_LPC32XX)		:= lpc32xx
 machine-$(CONFIG_ARCH_MMP)		:= mmp
 machine-$(CONFIG_ARCH_MSM)		:= msm
 machine-$(CONFIG_ARCH_MV78XX0)		:= mv78xx0
diff --git a/arch/arm/mach-clps711x/include/mach/debug-macro.S b/arch/arm/mach-clps711x/include/mach/debug-macro.S
index fedd8076a689..072cc6b61ba3 100644
--- a/arch/arm/mach-clps711x/include/mach/debug-macro.S
+++ b/arch/arm/mach-clps711x/include/mach/debug-macro.S
@@ -11,6 +11,7 @@
  *
 */
 
+#include <mach/hardware.h>
 #include <asm/hardware/clps7111.h>
 
 		.macro	addruart, rx, tmp
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index e3bc3f6f6b10..88b3dd89be89 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -232,7 +232,7 @@ EXPORT_SYMBOL(__bus_to_virt);
 
 unsigned long __pfn_to_bus(unsigned long pfn)
 {
-	return __pfn_to_phys(pfn) + (fb_bus_sdram_offset() - PHYS_OFFSET));
+	return __pfn_to_phys(pfn) + (fb_bus_sdram_offset() - PHYS_OFFSET);
 }
 EXPORT_SYMBOL(__pfn_to_bus);
 
diff --git a/arch/arm/mach-h720x/include/mach/debug-macro.S b/arch/arm/mach-h720x/include/mach/debug-macro.S
index a9ee8f0d48b7..27cafd12f033 100644
--- a/arch/arm/mach-h720x/include/mach/debug-macro.S
+++ b/arch/arm/mach-h720x/include/mach/debug-macro.S
@@ -11,8 +11,10 @@
  *
 */
 
-		.equ    io_virt, IO_BASE
-		.equ    io_phys, IO_START
+#include <mach/hardware.h>
+
+		.equ    io_virt, IO_VIRT
+		.equ    io_phys, IO_PHYS
 
 		.macro  addruart, rx, tmp
 		mrc     p15, 0, \rx, c1, c0
diff --git a/arch/arm/mach-kirkwood/tsx1x-common.h b/arch/arm/mach-kirkwood/tsx1x-common.h
index 9a592962a6ea..7fa037361b55 100644
--- a/arch/arm/mach-kirkwood/tsx1x-common.h
+++ b/arch/arm/mach-kirkwood/tsx1x-common.h
@@ -1,7 +1,7 @@
 #ifndef __ARCH_KIRKWOOD_TSX1X_COMMON_H
 #define __ARCH_KIRKWOOD_TSX1X_COMMON_H
 
-extern void qnap_tsx1x_register_flash(void);
+extern void __init qnap_tsx1x_register_flash(void);
 extern void qnap_tsx1x_power_off(void);
 
 #endif
diff --git a/arch/arm/mach-lpc32xx/Kconfig b/arch/arm/mach-lpc32xx/Kconfig
new file mode 100644
index 000000000000..fde663508696
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/Kconfig
@@ -0,0 +1,33 @@
+if ARCH_LPC32XX
+
+menu "Individual UART enable selections"
+
+config ARCH_LPC32XX_UART3_SELECT
+	bool "Add support for standard UART3"
+	help
+	 Adds support for standard UART 3 when the 8250 serial support
+	 is enabled.
+
+config ARCH_LPC32XX_UART4_SELECT
+	bool "Add support for standard UART4"
+	help
+	 Adds support for standard UART 4 when the 8250 serial support
+	 is enabled.
+
+config ARCH_LPC32XX_UART5_SELECT
+	bool "Add support for standard UART5"
+	default y
+	help
+	 Adds support for standard UART 5 when the 8250 serial support
+	 is enabled.
+
+config ARCH_LPC32XX_UART6_SELECT
+	bool "Add support for standard UART6"
+	help
+	 Adds support for standard UART 6 when the 8250 serial support
+	 is enabled.
+
+endmenu
+
+endif
+
diff --git a/arch/arm/mach-lpc32xx/Makefile b/arch/arm/mach-lpc32xx/Makefile
new file mode 100644
index 000000000000..a5fc5d0eeaeb
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y	:= timer.o irq.o common.o serial.o clock.o
+obj-y	+= gpiolib.o pm.o suspend.o
+obj-y	+= phy3250.o
+
diff --git a/arch/arm/mach-lpc32xx/Makefile.boot b/arch/arm/mach-lpc32xx/Makefile.boot
new file mode 100644
index 000000000000..b796b41ebf8f
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/Makefile.boot
@@ -0,0 +1,4 @@
+   zreladdr-y	:= 0x80008000
+params_phys-y	:= 0x80000100
+initrd_phys-y	:= 0x82000000
+
diff --git a/arch/arm/mach-lpc32xx/clock.c b/arch/arm/mach-lpc32xx/clock.c
new file mode 100644
index 000000000000..32d63796430a
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/clock.c
@@ -0,0 +1,1137 @@
+/*
+ * arch/arm/mach-lpc32xx/clock.c
+ *
+ * Author: Kevin Wells <kevin.wells@nxp.com>
+ *
+ * Copyright (C) 2010 NXP Semiconductors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * LPC32xx clock management driver overview
+ *
+ * The LPC32XX contains a number of high level system clocks that can be
+ * generated from different sources. These system clocks are used to
+ * generate the CPU and bus rates and the individual peripheral clocks in
+ * the system. When Linux is started by the boot loader, the system
+ * clocks are already running. Stopping a system clock during normal
+ * Linux operation should never be attempted, as peripherals that require
+ * those clocks will quit working (ie, DRAM).
+ *
+ * The LPC32xx high level clock tree looks as follows. Clocks marked with
+ * an asterisk are always on and cannot be disabled. Clocks marked with
+ * an ampersand can only be disabled in CPU suspend mode. Clocks marked
+ * with a caret are always on if it is the selected clock for the SYSCLK
+ * source. The clock that isn't used for SYSCLK can be enabled and
+ * disabled normally.
+ *                               32KHz oscillator*
+ *                               /      |      \
+ *                             RTC*   PLL397^ TOUCH
+ *                                     /
+ *               Main oscillator^     /
+ *                   |        \      /
+ *                   |         SYSCLK&
+ *                   |            \
+ *                   |             \
+ *                USB_PLL       HCLK_PLL&
+ *                   |           |    |
+ *            USB host/device  PCLK&  |
+ *                               |    |
+ *                             Peripherals
+ *
+ * The CPU and chip bus rates are derived from the HCLK PLL, which can
+ * generate various clock rates up to 266MHz and beyond. The internal bus
+ * rates (PCLK and HCLK) are generated from dividers based on the HCLK
+ * PLL rate. HCLK can be a ratio of 1:1, 1:2, or 1:4 or HCLK PLL rate,
+ * while PCLK can be 1:1 to 1:32 of HCLK PLL rate. Most peripherals high
+ * level clocks are based on either HCLK or PCLK, but have their own
+ * dividers as part of the IP itself. Because of this, the system clock
+ * rates should not be changed.
+ *
+ * The HCLK PLL is clocked from SYSCLK, which can be derived from the
+ * main oscillator or PLL397. PLL397 generates a rate that is 397 times
+ * the 32KHz oscillator rate. The main oscillator runs at the selected
+ * oscillator/crystal rate on the mosc_in pin of the LPC32xx. This rate
+ * is normally 13MHz, but depends on the selection of external crystals
+ * or oscillators. If USB operation is required, the main oscillator must
+ * be used in the system.
+ *
+ * Switching SYSCLK between sources during normal Linux operation is not
+ * supported. SYSCLK is preset in the bootloader. Because of the
+ * complexities of clock management during clock frequency changes,
+ * there are some limitations to the clock driver explained below:
+ * - The PLL397 and main oscillator can be enabled and disabled by the
+ *   clk_enable() and clk_disable() functions unless SYSCLK is based
+ *   on that clock. This allows the other oscillator that isn't driving
+ *   the HCLK PLL to be used as another system clock that can be routed
+ *   to an external pin.
+ * - The muxed SYSCLK input and HCLK_PLL rate cannot be changed with
+ *   this driver.
+ * - HCLK and PCLK rates cannot be changed as part of this driver.
+ * - Most peripherals have their own dividers are part of the peripheral
+ *   block. Changing SYSCLK, HCLK PLL, HCLK, or PCLK sources or rates
+ *   will also impact the individual peripheral rates.
+ */
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+
+#include <mach/hardware.h>
+#include <asm/clkdev.h>
+#include <mach/clkdev.h>
+#include <mach/platform.h>
+#include "clock.h"
+#include "common.h"
+
+static struct clk clk_armpll;
+static struct clk clk_usbpll;
+static DEFINE_MUTEX(clkm_lock);
+
+/*
+ * Post divider values for PLLs based on selected register value
+ */
+static const u32 pll_postdivs[4] = {1, 2, 4, 8};
+
+static unsigned long local_return_parent_rate(struct clk *clk)
+{
+	/*
+	 * If a clock has a rate of 0, then it inherits it's parent
+	 * clock rate
+	 */
+	while (clk->rate == 0)
+		clk = clk->parent;
+
+	return clk->rate;
+}
+
+/* 32KHz clock has a fixed rate and is not stoppable */
+static struct clk osc_32KHz = {
+	.rate		= LPC32XX_CLOCK_OSC_FREQ,
+	.get_rate	= local_return_parent_rate,
+};
+
+static int local_pll397_enable(struct clk *clk, int enable)
+{
+	u32 reg;
+	unsigned long timeout = 1 + msecs_to_jiffies(10);
+
+	reg = __raw_readl(LPC32XX_CLKPWR_PLL397_CTRL);
+
+	if (enable == 0) {
+		reg |= LPC32XX_CLKPWR_SYSCTRL_PLL397_DIS;
+		__raw_writel(reg, LPC32XX_CLKPWR_PLL397_CTRL);
+	} else {
+		/* Enable PLL397 */
+		reg &= ~LPC32XX_CLKPWR_SYSCTRL_PLL397_DIS;
+		__raw_writel(reg, LPC32XX_CLKPWR_PLL397_CTRL);
+
+		/* Wait for PLL397 lock */
+		while (((__raw_readl(LPC32XX_CLKPWR_PLL397_CTRL) &
+			LPC32XX_CLKPWR_SYSCTRL_PLL397_STS) == 0) &&
+			(timeout > jiffies))
+			cpu_relax();
+
+		if ((__raw_readl(LPC32XX_CLKPWR_PLL397_CTRL) &
+			LPC32XX_CLKPWR_SYSCTRL_PLL397_STS) == 0)
+			return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int local_oscmain_enable(struct clk *clk, int enable)
+{
+	u32 reg;
+	unsigned long timeout = 1 + msecs_to_jiffies(10);
+
+	reg = __raw_readl(LPC32XX_CLKPWR_MAIN_OSC_CTRL);
+
+	if (enable == 0) {
+		reg |= LPC32XX_CLKPWR_MOSC_DISABLE;
+		__raw_writel(reg, LPC32XX_CLKPWR_MAIN_OSC_CTRL);
+	} else {
+		/* Enable main oscillator */
+		reg &= ~LPC32XX_CLKPWR_MOSC_DISABLE;
+		__raw_writel(reg, LPC32XX_CLKPWR_MAIN_OSC_CTRL);
+
+		/* Wait for main oscillator to start */
+		while (((__raw_readl(LPC32XX_CLKPWR_M