ARM: imx: merge plat-mxc into mach-imx

It's really unnecessary to have plat-mxc, and let's merge it into
mach-imx.  It's pretty much just a bunch of file renaming and
Kconfig/Makefile merge.

To make the change less invasive, we keep using Kconfig symbol
CONFIG_ARCH_MXC for mach-imx sub-architecture.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>

41 files changed, 0 insertions, 5655 deletions

diff --git a/arch/arm/plat-mxc/3ds_debugboard.c b/arch/arm/plat-mxc/3ds_debugboard.c
deleted file mode 100644
index 5c10ad05df7..00000000000
--- a/arch/arm/plat-mxc/3ds_debugboard.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-#include <linux/smsc911x.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/fixed.h>
-
-#include <mach/hardware.h>
-
-/* LAN9217 ethernet base address */
-#define LAN9217_BASE_ADDR(n)	(n + 0x0)
-/* External UART */
-#define UARTA_BASE_ADDR(n)	(n + 0x8000)
-#define UARTB_BASE_ADDR(n)	(n + 0x10000)
-
-#define BOARD_IO_ADDR(n)	(n + 0x20000)
-/* LED switchs */
-#define LED_SWITCH_REG		0x00
-/* buttons */
-#define SWITCH_BUTTONS_REG	0x08
-/* status, interrupt */
-#define INTR_STATUS_REG	0x10
-#define INTR_MASK_REG		0x38
-#define INTR_RESET_REG		0x20
-/* magic word for debug CPLD */
-#define MAGIC_NUMBER1_REG	0x40
-#define MAGIC_NUMBER2_REG	0x48
-/* CPLD code version */
-#define CPLD_CODE_VER_REG	0x50
-/* magic word for debug CPLD */
-#define MAGIC_NUMBER3_REG	0x58
-/* module reset register*/
-#define MODULE_RESET_REG	0x60
-/* CPU ID and Personality ID */
-#define MCU_BOARD_ID_REG	0x68
-
-#define MXC_MAX_EXP_IO_LINES	16
-
-/* interrupts like external uart , external ethernet etc*/
-#define EXPIO_INT_ENET		0
-#define EXPIO_INT_XUART_A	1
-#define EXPIO_INT_XUART_B	2
-#define EXPIO_INT_BUTTON_A	3
-#define EXPIO_INT_BUTTON_B	4
-
-static void __iomem *brd_io;
-static struct irq_domain *domain;
-
-static struct resource smsc911x_resources[] = {
-	{
-		.flags = IORESOURCE_MEM,
-	} , {
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct smsc911x_platform_config smsc911x_config = {
-	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
-	.flags = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
-};
-
-static struct platform_device smsc_lan9217_device = {
-	.name = "smsc911x",
-	.id = -1,
-	.dev = {
-		.platform_data = &smsc911x_config,
-	},
-	.num_resources = ARRAY_SIZE(smsc911x_resources),
-	.resource = smsc911x_resources,
-};
-
-static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc)
-{
-	u32 imr_val;
-	u32 int_valid;
-	u32 expio_irq;
-
-	/* irq = gpio irq number */
-	desc->irq_data.chip->irq_mask(&desc->irq_data);
-
-	imr_val = __raw_readw(brd_io + INTR_MASK_REG);
-	int_valid = __raw_readw(brd_io + INTR_STATUS_REG) & ~imr_val;
-
-	expio_irq = 0;
-	for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
-		if ((int_valid & 1) == 0)
-			continue;
-		generic_handle_irq(irq_find_mapping(domain, expio_irq));
-	}
-
-	desc->irq_data.chip->irq_ack(&desc->irq_data);
-	desc->irq_data.chip->irq_unmask(&desc->irq_data);
-}
-
-/*
- * Disable an expio pin's interrupt by setting the bit in the imr.
- * Irq is an expio virtual irq number
- */
-static void expio_mask_irq(struct irq_data *d)
-{
-	u16 reg;
-	u32 expio = d->hwirq;
-
-	reg = __raw_readw(brd_io + INTR_MASK_REG);
-	reg |= (1 << expio);
-	__raw_writew(reg, brd_io + INTR_MASK_REG);
-}
-
-static void expio_ack_irq(struct irq_data *d)
-{
-	u32 expio = d->hwirq;
-
-	__raw_writew(1 << expio, brd_io + INTR_RESET_REG);
-	__raw_writew(0, brd_io + INTR_RESET_REG);
-	expio_mask_irq(d);
-}
-
-static void expio_unmask_irq(struct irq_data *d)
-{
-	u16 reg;
-	u32 expio = d->hwirq;
-
-	reg = __raw_readw(brd_io + INTR_MASK_REG);
-	reg &= ~(1 << expio);
-	__raw_writew(reg, brd_io + INTR_MASK_REG);
-}
-
-static struct irq_chip expio_irq_chip = {
-	.irq_ack = expio_ack_irq,
-	.irq_mask = expio_mask_irq,
-	.irq_unmask = expio_unmask_irq,
-};
-
-static struct regulator_consumer_supply dummy_supplies[] = {
-	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
-	REGULATOR_SUPPLY("vddvario", "smsc911x"),
-};
-
-int __init mxc_expio_init(u32 base, u32 intr_gpio)
-{
-	u32 p_irq = gpio_to_irq(intr_gpio);
-	int irq_base;
-	int i;
-
-	brd_io = ioremap(BOARD_IO_ADDR(base), SZ_4K);
-	if (brd_io == NULL)
-		return -ENOMEM;
-
-	if ((__raw_readw(brd_io + MAGIC_NUMBER1_REG) != 0xAAAA) ||
-	    (__raw_readw(brd_io + MAGIC_NUMBER2_REG) != 0x5555) ||
-	    (__raw_readw(brd_io + MAGIC_NUMBER3_REG) != 0xCAFE)) {
-		pr_info("3-Stack Debug board not detected\n");
-		iounmap(brd_io);
-		brd_io = NULL;
-		return -ENODEV;
-	}
-
-	pr_info("3-Stack Debug board detected, rev = 0x%04X\n",
-		readw(brd_io + CPLD_CODE_VER_REG));
-
-	/*
-	 * Configure INT line as GPIO input
-	 */
-	gpio_request(intr_gpio, "expio_pirq");
-	gpio_direction_input(intr_gpio);
-
-	/* disable the interrupt and clear the status */
-	__raw_writew(0, brd_io + INTR_MASK_REG);
-	__raw_writew(0xFFFF, brd_io + INTR_RESET_REG);
-	__raw_writew(0, brd_io + INTR_RESET_REG);
-	__raw_writew(0x1F, brd_io + INTR_MASK_REG);
-
-	irq_base = irq_alloc_descs(-1, 0, MXC_MAX_EXP_IO_LINES, numa_node_id());
-	WARN_ON(irq_base < 0);
-
-	domain = irq_domain_add_legacy(NULL, MXC_MAX_EXP_IO_LINES, irq_base, 0,
-				       &irq_domain_simple_ops, NULL);
-	WARN_ON(!domain);
-
-	for (i = irq_base; i < irq_base + MXC_MAX_EXP_IO_LINES; i++) {
-		irq_set_chip_and_handler(i, &expio_irq_chip, handle_level_irq);
-		set_irq_flags(i, IRQF_VALID);
-	}
-	irq_set_irq_type(p_irq, IRQF_TRIGGER_LOW);
-	irq_set_chained_handler(p_irq, mxc_expio_irq_handler);
-
-	/* Register Lan device on the debugboard */
-	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
-
-	smsc911x_resources[0].start = LAN9217_BASE_ADDR(base);
-	smsc911x_resources[0].end = LAN9217_BASE_ADDR(base) + 0x100 - 1;
-	smsc911x_resources[1].start = irq_find_mapping(domain, EXPIO_INT_ENET);
-	smsc911x_resources[1].end = irq_find_mapping(domain, EXPIO_INT_ENET);
-	platform_device_register(&smsc_lan9217_device);
-
-	return 0;
-}
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
deleted file mode 100644
index 559c9d84627..00000000000
--- a/arch/arm/plat-mxc/Kconfig
+++ /dev/null
@@ -1,81 +0,0 @@
-if ARCH_MXC
-
-menu "Freescale MXC Implementations"
-
-choice
-	prompt "Freescale CPU family:"
-	default ARCH_IMX_V6_V7
-
-config ARCH_IMX_V4_V5
-	bool "i.MX1, i.MX21, i.MX25, i.MX27"
-	select ARM_PATCH_PHYS_VIRT
-	select AUTO_ZRELADDR if !ZBOOT_ROM
-	help
-	  This enables support for systems based on the Freescale i.MX ARMv4
-	  and ARMv5 SoCs
-
-config ARCH_IMX_V6_V7
-	bool "i.MX3, i.MX5, i.MX6"
-	select ARM_PATCH_PHYS_VIRT
-	select AUTO_ZRELADDR if !ZBOOT_ROM
-	select MIGHT_HAVE_CACHE_L2X0
-	help
-	  This enables support for systems based on the Freescale i.MX3, i.MX5
-	  and i.MX6 family.
-
-endchoice
-
-source "arch/arm/mach-imx/Kconfig"
-
-endmenu
-
-config MXC_IRQ_PRIOR
-	bool "Use IRQ priority"
-	help
-	  Select this if you want to use prioritized IRQ handling.
-	  This feature prevents higher priority ISR to be interrupted
-	  by lower priority IRQ even IRQF_DISABLED flag is not set.
-	  This may be useful in embedded applications, where are strong
-	  requirements for timing.
-	  Say N here, unless you have a specialized requirement.
-
-config MXC_TZIC
-	bool
-
-config MXC_AVIC
-	bool
-
-config MXC_DEBUG_BOARD
-	bool "Enable MXC debug board(for 3-stack)"
-	help
-	  The debug board is an integral part of the MXC 3-stack(PDK)
-	  platforms, it can be attached or removed from the peripheral
-	  board. On debug board, several debug devices(ethernet, UART,
-	  buttons, LEDs and JTAG) are implemented. Between the MCU and
-	  these devices, a CPLD is added as a bridge which performs
-	  data/address de-multiplexing and decode, signal level shift,
-	  interrupt control and various board functions.
-
-config HAVE_EPIT
-	bool
-
-config MXC_USE_EPIT
-	bool "Use EPIT instead of GPT"
-	depends on HAVE_EPIT
-	help
-	  Use EPIT as the system timer on systems that have it. Normally you
-	  don't have a reason to do so as the EPIT has the same features and
-	  uses the same clocks as the GPT. Anyway, on some systems the GPT
-	  may be in use for other purposes.
-
-config MXC_ULPI
-	bool
-
-config ARCH_HAS_RNGA
-	bool
-
-config IRAM_ALLOC
-	bool
-	select GENERIC_ALLOCATOR
-
-endif
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
deleted file mode 100644
index e33d2d139ba..00000000000
--- a/arch/arm/plat-mxc/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-# Common support
-obj-y := time.o cpu.o system.o irq-common.o
-
-obj-$(CONFIG_MXC_TZIC) += tzic.o
-obj-$(CONFIG_MXC_AVIC) += avic.o
-
-obj-$(CONFIG_IRAM_ALLOC) += iram_alloc.o
-obj-$(CONFIG_MXC_ULPI) += ulpi.o
-obj-$(CONFIG_MXC_USE_EPIT) += epit.o
-obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
-obj-$(CONFIG_CPU_FREQ_IMX)    += cpufreq.o
-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
-ifdef CONFIG_SND_IMX_SOC
-obj-y += ssi-fiq.o
-obj-y += ssi-fiq-ksym.o
-endif
diff --git a/arch/arm/plat-mxc/avic.c b/arch/arm/plat-mxc/avic.c
deleted file mode 100644
index cbd55c36def..00000000000
--- a/arch/arm/plat-mxc/avic.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301, USA.
- */
-
-#include <linux/module.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <mach/common.h>
-#include <asm/mach/irq.h>
-#include <asm/exception.h>
-#include <mach/hardware.h>
-#include <mach/irqs.h>
-
-#include "irq-common.h"
-
-#define AVIC_INTCNTL		0x00	/* int control reg */
-#define AVIC_NIMASK		0x04	/* int mask reg */
-#define AVIC_INTENNUM		0x08	/* int enable number reg */
-#define AVIC_INTDISNUM		0x0C	/* int disable number reg */
-#define AVIC_INTENABLEH		0x10	/* int enable reg high */
-#define AVIC_INTENABLEL		0x14	/* int enable reg low */
-#define AVIC_INTTYPEH		0x18	/* int type reg high */
-#define AVIC_INTTYPEL		0x1C	/* int type reg low */
-#define AVIC_NIPRIORITY(x)	(0x20 + 4 * (7 - (x))) /* int priority */
-#define AVIC_NIVECSR		0x40	/* norm int vector/status */
-#define AVIC_FIVECSR		0x44	/* fast int vector/status */
-#define AVIC_INTSRCH		0x48	/* int source reg high */
-#define AVIC_INTSRCL		0x4C	/* int source reg low */
-#define AVIC_INTFRCH		0x50	/* int force reg high */
-#define AVIC_INTFRCL		0x54	/* int force reg low */
-#define AVIC_NIPNDH		0x58	/* norm int pending high */
-#define AVIC_NIPNDL		0x5C	/* norm int pending low */
-#define AVIC_FIPNDH		0x60	/* fast int pending high */
-#define AVIC_FIPNDL		0x64	/* fast int pending low */
-
-#define AVIC_NUM_IRQS 64
-
-void __iomem *avic_base;
-static struct irq_domain *domain;
-
-static u32 avic_saved_mask_reg[2];
-
-#ifdef CONFIG_MXC_IRQ_PRIOR
-static int avic_irq_set_priority(unsigned char irq, unsigned char prio)
-{
-	struct irq_data *d = irq_get_irq_data(irq);
-	unsigned int temp;
-	unsigned int mask = 0x0F << irq % 8 * 4;
-
-	irq = d->hwirq;
-
-	if (irq >= AVIC_NUM_IRQS)
-		return -EINVAL;
-
-	temp = __raw_readl(avic_base + AVIC_NIPRIORITY(irq / 8));
-	temp &= ~mask;
-	temp |= prio & mask;
-
-	__raw_writel(temp, avic_base + AVIC_NIPRIORITY(irq / 8));
-
-	return 0;
-}
-#endif
-
-#ifdef CONFIG_FIQ
-static int avic_set_irq_fiq(unsigned int irq, unsigned int type)
-{
-	struct irq_data *d = irq_get_irq_data(irq);
-	unsigned int irqt;
-
-	irq = d->hwirq;
-
-	if (irq >= AVIC_NUM_IRQS)
-		return -EINVAL;
-
-	if (irq < AVIC_NUM_IRQS / 2) {
-		irqt = __raw_readl(avic_base + AVIC_INTTYPEL) & ~(1 << irq);
-		__raw_writel(irqt | (!!type << irq), avic_base + AVIC_INTTYPEL);
-	} else {
-		irq -= AVIC_NUM_IRQS / 2;
-		irqt = __raw_readl(avic_base + AVIC_INTTYPEH) & ~(1 << irq);
-		__raw_writel(irqt | (!!type << irq), avic_base + AVIC_INTTYPEH);
-	}
-
-	return 0;
-}
-#endif /* CONFIG_FIQ */
-
-
-static struct mxc_extra_irq avic_extra_irq = {
-#ifdef CONFIG_MXC_IRQ_PRIOR
-	.set_priority = avic_irq_set_priority,
-#endif
-#ifdef CONFIG_FIQ
-	.set_irq_fiq = avic_set_irq_fiq,
-#endif
-};
-
-#ifdef CONFIG_PM
-static void avic_irq_suspend(struct irq_data *d)
-{
-	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
-	struct irq_chip_type *ct = gc->chip_types;
-	int idx = d->hwirq >> 5;
-
-	avic_saved_mask_reg[idx] = __raw_readl(avic_base + ct->regs.mask);
-	__raw_writel(gc->wake_active, avic_base + ct->regs.mask);
-}
-
-static void avic_irq_resume(struct irq_data *d)
-{
-	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
-	struct irq_chip_type *ct = gc->chip_types;
-	int idx = d->hwirq >> 5;
-
-	__raw_writel(avic_saved_mask_reg[idx], avic_base + ct->regs.mask);
-}
-
-#else
-#define avic_irq_suspend NULL
-#define avic_irq_resume NULL
-#endif
-
-static __init void avic_init_gc(int idx, unsigned int irq_start)
-{
-	struct irq_chip_generic *gc;
-	struct irq_chip_type *ct;
-
-	gc = irq_alloc_generic_chip("mxc-avic", 1, irq_start, avic_base,
-				    handle_level_irq);
-	gc->private = &avic_extra_irq;
-	gc->wake_enabled = IRQ_MSK(32);
-
-	ct = gc->chip_types;
-	ct->chip.irq_mask = irq_gc_mask_clr_bit;
-	ct->chip.irq_unmask = irq_gc_mask_set_bit;
-	ct->chip.irq_ack = irq_gc_mask_clr_bit;
-	ct->chip.irq_set_wake = irq_gc_set_wake;
-	ct->chip.irq_suspend = avic_irq_suspend;
-	ct->chip.irq_resume = avic_irq_resume;
-	ct->regs.mask = !idx ? AVIC_INTENABLEL : AVIC_INTENABLEH;
-	ct->regs.ack = ct->regs.mask;
-
-	irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0);
-}
-
-asmlinkage void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
-{
-	u32 nivector;
-
-	do {
-		nivector = __raw_readl(avic_base + AVIC_NIVECSR) >> 16;
-		if (nivector == 0xffff)
-			break;
-
-		handle_IRQ(irq_find_mapping(domain, nivector), regs);
-	} while (1);
-}
-
-/*
- * This function initializes the AVIC hardware and disables all the
- * interrupts. It registers the interrupt enable and disable functions
- * to the kernel for each interrupt source.
- */
-void __init mxc_init_irq(void __iomem *irqbase)
-{
-	struct device_node *np;
-	int irq_base;
-	int i;
-
-	avic_base = irqbase;
-
-	/* put the AVIC into the reset value with
-	 * all interrupts disabled
-	 */
-	__raw_writel(0, avic_base + AVIC_INTCNTL);
-	__raw_writel(0x1f, avic_base + AVIC_NIMASK);
-
-	/* disable all interrupts */
-	__raw_writel(0, avic_base + AVIC_INTENABLEH);
-	__raw_writel(0, avic_base + AVIC_INTENABLEL);
-
-	/* all IRQ no FIQ */
-	__raw_writel(0, avic_base + AVIC_INTTYPEH);
-	__raw_writel(0, avic_base + AVIC_INTTYPEL);
-
-	irq_base = irq_alloc_descs(-1, 0, AVIC_NUM_IRQS, numa_node_id());
-	WARN_ON(irq_base < 0);
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,avic");
-	domain = irq_domain_add_legacy(np, AVIC_NUM_IRQS, irq_base, 0,
-				       &irq_domain_simple_ops, NULL);
-	WARN_ON(!domain);
-
-	for (i = 0; i < AVIC_NUM_IRQS / 32; i++, irq_base += 32)
-		avic_init_gc(i, irq_base);
-
-	/* Set default priority value (0) for all IRQ's */
-	for (i = 0; i < 8; i++)
-		__raw_writel(0, avic_base + AVIC_NIPRIORITY(i));
-
-#ifdef CONFIG_FIQ
-	/* Initialize FIQ */
-	init_FIQ(FIQ_START);
-#endif
-
-	printk(KERN_INFO "MXC IRQ initialized\n");
-}
diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c
deleted file mode 100644
index 220dd6f9312..00000000000
--- a/arch/arm/plat-mxc/cpu.c
+++ /dev/null
@@ -1,44 +0,0 @@
-
-#include <linux/module.h>
-#include <linux/io.h>
-#include <mach/hardware.h>
-
-unsigned int __mxc_cpu_type;
-EXPORT_SYMBOL(__mxc_cpu_type);
-
-void mxc_set_cpu_type(unsigned int type)
-{
-	__mxc_cpu_type = type;
-}
-
-void imx_print_silicon_rev(const char *cpu, int srev)
-{
-	if (srev == IMX_CHIP_REVISION_UNKNOWN)
-		pr_info("CPU identified as %s, unknown revision\n", cpu);
-	else
-		pr_info("CPU identified as %s, silicon rev %d.%d\n",
-				cpu, (srev >> 4) & 0xf, srev & 0xf);
-}
-
-void __init imx_set_aips(void __iomem *base)
-{
-	unsigned int reg;
-/*
- * Set all MPROTx to be non-bufferable, trusted for R/W,
- * not forced to user-mode.
- */
-	__raw_writel(0x77777777, base + 0x0);
-	__raw_writel(0x77777777, base + 0x4);
-
-/*
- * Set all OPACRx to be non-bufferable, to not require
- * supervisor privilege level for access, allow for
- * write access and untrusted master access.
- */
-	__raw_writel(0x0, base + 0x40);
-	__raw_writel(0x0, base + 0x44);
-	__raw_writel(0x0, base + 0x48);
-	__raw_writel(0x0, base + 0x4C);
-	reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
-	__raw_writel(reg, base + 0x50);
-}
diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c
deleted file mode 100644
index b5b6f808313..00000000000
--- a/arch/arm/plat-mxc/cpufreq.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
- */
-
-/*
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-/*
- * A driver for the Freescale Semiconductor i.MXC CPUfreq module.
- * The CPUFREQ driver is for controlling CPU frequency. It allows you to change
- * the CPU clock speed on the fly.
- */
-
-#include <linux/module.h>
-#include <linux/cpufreq.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <mach/hardware.h>
-
-#define CLK32_FREQ	32768
-#define NANOSECOND	(1000 * 1000 * 1000)
-
-struct cpu_op *(*get_cpu_op)(int *op);
-
-static int cpu_freq_khz_min;
-static int cpu_freq_khz_max;
-
-static struct clk *cpu_clk;
-static struct cpufreq_frequency_table *imx_freq_table;
-
-static int cpu_op_nr;
-static struct cpu_op *cpu_op_tbl;
-
-static int set_cpu_freq(int freq)
-{
-	int ret = 0;
-	int org_cpu_rate;
-
-	org_cpu_rate = clk_get_rate(cpu_clk);
-	if (org_cpu_rate == freq)
-		return ret;
-
-	ret = clk_set_rate(cpu_clk, freq);
-	if (ret != 0) {
-		printk(KERN_DEBUG "cannot set CPU clock rate\n");
-		return ret;
-	}
-
-	return ret;
-}
-
-static int mxc_verify_speed(struct cpufreq_policy *policy)
-{
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	return cpufreq_frequency_table_verify(policy, imx_freq_table);
-}
-
-static unsigned int mxc_get_speed(unsigned int cpu)
-{
-	if (cpu)
-		return 0;
-
-	return clk_get_rate(cpu_clk) / 1000;
-}
-
-static int mxc_set_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq, unsigned int relation)
-{
-	struct cpufreq_freqs freqs;
-	int freq_Hz;
-	int ret = 0;
-	unsigned int index;
-
-	cpufreq_frequency_table_target(policy, imx_freq_table,
-			target_freq, relation, &index);
-	freq_Hz = imx_freq_table[index].frequency * 1000;
-
-	freqs.old = clk_get_rate(cpu_clk) / 1000;
-	freqs.new = freq_Hz / 1000;
-	freqs.cpu = 0;
-	freqs.flags = 0;
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-	ret = set_cpu_freq(freq_Hz);
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
-}
-
-static int mxc_cpufreq_init(struct cpufreq_policy *policy)
-{
-	int ret;
-	int i;
-
-	printk(KERN_INFO "i.MXC CPU frequency driver\n");
-
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	if (!get_cpu_op)
-		return -EINVAL;
-
-	cpu_clk = clk_get(NULL, "cpu_clk");
-	if (IS_ERR(cpu_clk)) {
-		printk(KERN_ERR "%s: failed to get cpu clock\n", __func__);
-		return PTR_ERR(cpu_clk);
-	}
-
-	cpu_op_tbl = get_cpu_op(&cpu_op_nr);
-
-	cpu_freq_khz_min = cpu_op_tbl[0].cpu_rate / 1000;
-	cpu_freq_khz_max = cpu_op_tbl[0].cpu_rate / 1000;
-
-	imx_freq_table = kmalloc(
-		sizeof(struct cpufreq_frequency_table) * (cpu_op_nr + 1),
-			GFP_KERNEL);
-	if (!imx_freq_table) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	for (i = 0; i < cpu_op_nr; i++) {
-		imx_freq_table[i].index = i;
-		imx_freq_table[i].frequency = cpu_op_tbl[i].cpu_rate / 1000;
-
-		if ((cpu_op_tbl[i].cpu_rate / 1000) < cpu_freq_khz_min)
-			cpu_freq_khz_min = cpu_op_tbl[i].cpu_rate / 1000;
-
-		if ((cpu_op_tbl[i].cpu_rate / 1000) > cpu_freq_khz_max)
-			cpu_freq_khz_max = cpu_op_tbl[i].cpu_rate / 1000;
-	}
-
-	imx_freq_table[i].index = i;
-	imx_freq_table[i].frequency = CPUFREQ_TABLE_END;
-
-	policy->cur = clk_get_rate(cpu_clk) / 1000;
-	policy->min = policy->cpuinfo.min_freq = cpu_freq_khz_min;
-	policy->max = policy->cpuinfo.max_freq = cpu_freq_khz_max;
-
-	/* Manual states, that PLL stabilizes in two CLK32 periods */
-	policy->cpuinfo.transition_latency = 2 * NANOSECOND / CLK32_FREQ;
-
-	ret = cpufreq_frequency_table_cpuinfo(policy, imx_freq_table);
-
-	if (ret < 0) {
-		printk(KERN_ERR "%s: failed to register i.MXC CPUfreq with error code %d\n",
-		       __func__, ret);
-		goto err;
-	}
-
-	cpufreq_frequency_table_get_attr(imx_freq_table, policy->cpu);
-	return 0;
-err:
-	kfree(imx_freq_table);
-err1:
-	clk_put(cpu_clk);
-	return ret;
-}
-
-static int mxc_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-
-	set_cpu_freq(cpu_freq_khz_max * 1000);
-	clk_put(cpu_clk);
-	kfree(imx_freq_table);
-	return 0;
-}
-
-static struct cpufreq_driver mxc_driver = {
-	.flags = CPUFREQ_STICKY,
-	.verify = mxc_verify_speed,
-	.target = mxc_set_target,
-	.get = mxc_get_speed,
-	.init = mxc_cpufreq_init,
-	.exit = mxc_cpufreq_exit,
-	.name = "imx",
-};
-
-static int __devinit mxc_cpufreq_driver_init(void)
-{
-	return cpufreq_register_driver(&mxc_driver);
-}
-
-static void mxc_cpufreq_driver_exit(void)
-{
-	cpufreq_unregister_driver(&mxc_driver