imx21: R.I.P.

It is broken since ~22 months and nobody takes care of that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35487 3c298f89-4303-0410-b956-a3cf2f4a3e73

8 files changed, 0 insertions, 626 deletions

diff --git a/target/linux/imx21/Makefile b/target/linux/imx21/Makefile
deleted file mode 100644
index 0ca5c8a750..0000000000
--- a/target/linux/imx21/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-#
-# Copyright (C) 2006-2011 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-include $(TOPDIR)/rules.mk
-
-ARCH:=arm
-BOARD:=imx21
-BOARDNAME:=Freescale i.MX21
-FEATURES:=jffs2 broken
-CFLAGS:=-Os -pipe -march=armv5te -mtune=arm926ej-s -fno-caller-saves
-
-LINUX_VERSION:=2.6.37.6
-
-DEVICE_TYPE=phone
-
-define Target/Description
-endef
-
-include $(INCLUDE_DIR)/target.mk
-
-$(eval $(call BuildTarget))
diff --git a/target/linux/imx21/config-default b/target/linux/imx21/config-default
deleted file mode 100644
index 068f1552c9..0000000000
--- a/target/linux/imx21/config-default
+++ /dev/null
@@ -1,132 +0,0 @@
-CONFIG_ALIGNMENT_TRAP=y
-# CONFIG_ARCH_MX1 is not set
-CONFIG_ARCH_MX2=y
-# CONFIG_ARCH_MX25 is not set
-# CONFIG_ARCH_MX3 is not set
-# CONFIG_ARCH_MX5 is not set
-CONFIG_ARCH_MXC=y
-# CONFIG_ARCH_MXC91231 is not set
-CONFIG_ARCH_MXC_AUDMUX_V1=y
-CONFIG_ARCH_REQUIRE_GPIOLIB=y
-# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
-# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
-CONFIG_ARCH_SUSPEND_POSSIBLE=y
-CONFIG_ARM=y
-CONFIG_ARM_L1_CACHE_SHIFT=5
-CONFIG_ARM_THUMB=y
-CONFIG_BITREVERSE=y
-# CONFIG_BLK_DEV is not set
-# CONFIG_BLK_DEV_INITRD is not set
-CONFIG_CMDLINE="unused -- bootloader passes ATAG list"
-CONFIG_COMMON_CLKDEV=y
-CONFIG_COMPAT_BRK=y
-CONFIG_CPU_32v5=y
-CONFIG_CPU_ABRT_EV5TJ=y
-CONFIG_CPU_ARM926T=y
-# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
-CONFIG_CPU_CACHE_VIVT=y
-CONFIG_CPU_COPY_V4WB=y
-CONFIG_CPU_CP15=y
-CONFIG_CPU_CP15_MMU=y
-# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
-# CONFIG_CPU_ICACHE_DISABLE is not set
-CONFIG_CPU_PABRT_LEGACY=y
-CONFIG_CPU_TLB_V4WBI=y
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_USER is not set
-CONFIG_DECOMPRESS_LZMA=y
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-# CONFIG_FPE_FASTFPE is not set
-# CONFIG_FPE_NWFPE is not set
-CONFIG_FRAME_POINTER=y
-# CONFIG_FSNOTIFY is not set
-CONFIG_GENERIC_ATOMIC64=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
-CONFIG_GENERIC_FIND_LAST_BIT=y
-CONFIG_GENERIC_GPIO=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
-CONFIG_GPIOLIB=y
-# CONFIG_GPIO_IT8761E is not set
-CONFIG_GPIO_SYSFS=y
-CONFIG_HARDIRQS_SW_RESEND=y
-CONFIG_HAS_DMA=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAVE_AOUT=y
-CONFIG_HAVE_ARCH_KGDB=y
-CONFIG_HAVE_CLK=y
-CONFIG_HAVE_FUNCTION_TRACER=y
-CONFIG_HAVE_GENERIC_DMA_COHERENT=y
-CONFIG_HAVE_IDE=y
-CONFIG_HAVE_KERNEL_GZIP=y
-CONFIG_HAVE_KERNEL_LZMA=y
-CONFIG_HAVE_KERNEL_LZO=y
-CONFIG_HAVE_KPROBES=y
-CONFIG_HAVE_KRETPROBES=y
-CONFIG_HAVE_LATENCYTOP_SUPPORT=y
-CONFIG_HAVE_OPROFILE=y
-CONFIG_HAVE_PERF_EVENTS=y
-CONFIG_HAVE_PROC_CPU=y
-# CONFIG_HW_RANDOM is not set
-CONFIG_IMX_HAVE_IOMUX_V1=y
-CONFIG_INPUT=y
-CONFIG_INPUT_EVDEV=y
-CONFIG_INPUT_KEYBOARD=y
-# CONFIG_INPUT_MISC is not set
-# CONFIG_ISDN_CAPI is not set
-# CONFIG_ISDN_DRV_GIGASET is not set
-# CONFIG_ISDN_I4L is not set
-CONFIG_KEYBOARD_ATKBD=y
-CONFIG_KEYBOARD_GPIO=y
-CONFIG_KEYBOARD_IMX=y
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_MATRIX is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-CONFIG_LEDS_GPIO=y
-# CONFIG_LEDS_TRIGGER_NETDEV is not set
-# CONFIG_LKDTM is not set
-CONFIG_MACH_MX21=y
-# CONFIG_MACH_MX21ADS is not set
-# CONFIG_MACH_MX27 is not set
-CONFIG_MACH_VP6500=y
-# CONFIG_MFD_T7L66XB is not set
-# CONFIG_MTD_CFI_INTELEXT is not set
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_PHYSMAP=y
-# CONFIG_MXC_DEBUG_BOARD is not set
-# CONFIG_MXC_IRQ_PRIOR is not set
-# CONFIG_MXC_PWM is not set
-CONFIG_NEED_DMA_MAP_STATE=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NET_ETHERNET is not set
-CONFIG_PAGEFLAGS_EXTENDED=y
-CONFIG_PAGE_OFFSET=0xC0000000
-# CONFIG_PCI_SYSCALL is not set
-CONFIG_PERF_USE_VMALLOC=y
-CONFIG_RATIONAL=y
-# CONFIG_SCSI_DMA is not set
-CONFIG_SCSI_MOD=y
-# CONFIG_SERIAL_8250 is not set
-CONFIG_SERIAL_IMX=y
-CONFIG_SERIAL_IMX_CONSOLE=y
-CONFIG_SERIO=y
-# CONFIG_SERIO_ALTERA_PS2 is not set
-CONFIG_SERIO_LIBPS2=y
-CONFIG_SERIO_SERPORT=y
-CONFIG_SPLIT_PTLOCK_CPUS=999999
-CONFIG_SYS_SUPPORTS_APM_EMULATION=y
-# CONFIG_TREE_PREEMPT_RCU is not set
-# CONFIG_UID16 is not set
-CONFIG_VECTORS_BASE=0xffff0000
-# CONFIG_VFP is not set
-# CONFIG_WATCHDOG is not set
-CONFIG_XZ_DEC_ARM=y
-CONFIG_XZ_DEC_BCJ=y
-CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_ZBOOT_ROM_TEXT=0x0
-CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/imx21/files/arch/arm/mach-mx2/mach-vp6500.c b/target/linux/imx21/files/arch/arm/mach-mx2/mach-vp6500.c
deleted file mode 100644
index fb4464eb8e..0000000000
--- a/target/linux/imx21/files/arch/arm/mach-mx2/mach-vp6500.c
+++ /dev/null
@@ -1,255 +0,0 @@
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/physmap.h>
-#include <linux/gpio.h>
-#include <linux/leds.h>
-
-#include <mach/common.h>
-#include <mach/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/time.h>
-#include <asm/mach/map.h>
-#include <mach/imx-uart.h>
-#include <mach/imxfb.h>
-#include <mach/iomux-mx21.h>
-#include <mach/board-vp6500.h>
-
-#include "devices.h"
-
-#include <linux/input.h>
-#include <linux/input/matrix_keypad.h>
-#include <linux/gpio_keys.h>
-#include <linux/pwm_backlight.h>
-
-static unsigned int vp6500_pins[] = {
-	/* UART1 */
-	PE12_PF_UART1_TXD,
-	PE13_PF_UART1_RXD,
-
-#if 0
-	/* LCDC */
-	PA5_PF_LSCLK,
-	PA6_PF_LD0,
-	PA7_PF_LD1,
-	PA8_PF_LD2,
-	PA9_PF_LD3,
-	PA10_PF_LD4,
-	PA11_PF_LD5,
-	PA12_PF_LD6,
-	PA13_PF_LD7,
-	PA14_PF_LD8,
-	PA15_PF_LD9,
-	PA16_PF_LD10,
-	PA17_PF_LD11,
-	PA18_PF_LD12,
-	PA19_PF_LD13,
-	PA20_PF_LD14,
-	PA21_PF_LD15,
-	PA22_PF_LD16,
-	PA28_PF_HSYNC,
-	PA29_PF_VSYNC,
-	PA30_PF_CONTRAST,
-	PA31_PF_OE_ACD,
-#endif
-
-	/* LCD Backlight */
-	PE5_PF_PWMO,
-	VP6500_GPIO_BACKLIGHT_EN | GPIO_GPIO | GPIO_OUT,
-};
-
-/* Flash */
-
-static struct physmap_flash_data vp6500_flash_data = {
-	.width = 2,
-};
-
-static struct resource vp6500_flash_resource = {
-	.start = MX21_CS0_BASE_ADDR,
-	.end = MX21_CS0_BASE_ADDR + SZ_64M - 1,
-	.flags = IORESOURCE_MEM,
-};
-
-static struct platform_device vp6500_nor_mtd_device = {
-	.name = "physmap-flash",
-	.id = -1,
-	.dev = {
-		.platform_data = &vp6500_flash_data,
-	},
-	.num_resources = 1,
-	.resource = &vp6500_flash_resource,
-};
-
-/* LEDs */
-
-static struct gpio_led vp6500_leds[] = {
-	{
-		.name = "vp6500:orange:keypad",
-		.gpio = VP6500_GPIO_LED_KEYPAD,
-	},
-	{
-		.name = "vp6500:green:",
-		.gpio = VP6500_GPIO_LED_GREEN,
-		.active_low = 1,
-		.default_state = LEDS_GPIO_DEFSTATE_ON,
-	},
-	{
-		.name = "vp6500:red:",
-		.gpio = VP6500_GPIO_LED_RED,
-	},
-	{
-		.name = "vp6500:red:camera",
-		.gpio = VP6500_GPIO_LED_CAMERA,
-	},
-};
-
-static struct gpio_led_platform_data vp6500_leds_data = {
-	.leds		= vp6500_leds,
-	.num_leds	= ARRAY_SIZE(vp6500_leds),
-};
-
-static struct platform_device vp6500_leds_device = {
-	.name = "leds-gpio",
-	.id = -1,
-	.dev = {
-		.platform_data = &vp6500_leds_data,
-	},
-};
-
-/* Keypad */
-
-static const uint32_t vp6500_keypad_keys[] = {
-	KEY(0, 3, KEY_F2),
-	KEY(0, 4, KEY_RIGHT),
-	KEY(1, 0, KEY_ZOOM),
-	KEY(1, 1, KEY_NUMERIC_POUND),
-	KEY(1, 2, KEY_0),
-	KEY(1, 3, KEY_ENTER),
-	KEY(1, 4, KEY_8),
-	KEY(2, 0, KEY_5),
-	KEY(2, 1, KEY_2),
-	KEY(2, 2, KEY_DOWN),
-	KEY(2, 3, KEY_OK),
-	KEY(2, 4, KEY_UP),
-	KEY(3, 0, KEY_CAMERA),
-	KEY(3, 1, KEY_NUMERIC_STAR),
-	KEY(3, 2, KEY_9),
-	KEY(3, 3, KEY_LEFT),
-	KEY(3, 4, KEY_6),
-	KEY(4, 0, KEY_7),
-	KEY(4, 1, KEY_4),
-	KEY(4, 2, KEY_1),
-	KEY(4, 3, KEY_3),
-	KEY(4, 4, KEY_F1),
-};
-
-static struct matrix_keymap_data vp6500_keypad_data = {
-	.keymap = vp6500_keypad_keys,
-	.keymap_size = ARRAY_SIZE(vp6500_keypad_keys),
-};
-
-static struct resource vp6500_keypad_resources[] = {
-	{
-		.start = MX21_KPP_BASE_ADDR,
-		.end = MX21_KPP_BASE_ADDR + 0x10 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.start = MX21_INT_KPP,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device vp6500_keypad_device = {
-	.name = "imx-keypad",
-	.id = 0,
-	.dev = {
-		.platform_data = &vp6500_keypad_data,
-	},
-	.resource = vp6500_keypad_resources,
-	.num_resources = ARRAY_SIZE(vp6500_keypad_resources),
-};
-
-static struct gpio_keys_button vp6500_keys = {
-	.gpio = VP6500_GPIO_POWER_KEY,
-	.code = KEY_POWER,
-	.desc = "Power button",
-	.active_low = 1,
-};
-
-static struct gpio_keys_platform_data vp6500_key_data = {
-	.buttons = &vp6500_keys,
-	.nbuttons = 1,
-};
-
-static struct platform_device vp6500_key_device = {
-	.name = "gpio-keys",
-	.id = -1,
-	.dev = {
-		.platform_data = &vp6500_key_data,
-	},
-};
-
-/* LCD backlight */
-
-static int vp6500_backlight_notify(struct device *dev, int brightness)
-{
-	gpio_set_value(VP6500_GPIO_BACKLIGHT_EN, !!brightness);
-
-	return brightness;
-}
-
-static struct platform_pwm_backlight_data vp6500_backlight_data = {
-	.max_brightness = 255,
-	.dft_brightness = 100,
-	.pwm_period_ns = 15000000,
-	.notify = vp6500_backlight_notify,
-};
-
-static struct platform_device vp6500_backlight_device = {
-	.name = "pwm-backlight",
-	.id = -1,
-	.dev = {
-		.parent = &mxc_pwm_device.dev,
-		.platform_data = &vp6500_backlight_data,
-	},
-};
-
-
-static struct platform_device *platform_devices[] __initdata = {
-	&vp6500_nor_mtd_device,
-	&vp6500_leds_device,
-	&vp6500_keypad_device,
-	&vp6500_key_device,
-	&vp6500_backlight_device,
-};
-
-static void __init vp6500_board_init(void)
-{
-	mxc_gpio_setup_multiple_pins(vp6500_pins, ARRAY_SIZE(vp6500_pins),
-			"vp6500");
-
-	mxc_register_device(&mxc_uart_device0, NULL);
-	mxc_register_device(&mxc_pwm_device, NULL);
-
-	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
-}
-
-static void __init vp6500_timer_init(void)
-{
-	mx21_clocks_init(32768, 26000000);
-}
-
-static struct sys_timer vp6500_timer = {
-	.init	= vp6500_timer_init,
-};
-
-MACHINE_START(VP6500, "Phillips VP6500")
-	.phys_io        = MX21_AIPI_BASE_ADDR,
-	.io_pg_offst    = ((MX21_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
-	.boot_params    = MX21_PHYS_OFFSET + 0x100,
-	.map_io         = mx21_map_io,
-	.init_irq       = mx21_init_irq,
-	.init_machine   = vp6500_board_init,
-	.timer          = &vp6500_timer,
-MACHINE_END
diff --git a/target/linux/imx21/files/arch/arm/plat-mxc/include/mach/board-vp6500.h b/target/linux/imx21/files/arch/arm/plat-mxc/include/mach/board-vp6500.h
deleted file mode 100644
index c11d053a5c..0000000000
--- a/target/linux/imx21/files/arch/arm/plat-mxc/include/mach/board-vp6500.h
+++ /dev/null
@@ -1,17 +0,0 @@
-
-#ifndef __BOARD_VP6500__
-#define __BOARD_VP6500__
-
-#define VP6500_GPIO_POWER_KEY		GPIO_PORTB | 5
-#define VP6500_GPIO_CAMERA_DIRECTION	GPIO_PORTB | 13
-#define VP6500_GPIO_LED_KEYPAD		GPIO_PORTC | 18
-#define VP6500_GPIO_AMP_ENABLE		GPIO_PORTC | 25
-#define VP6500_GPIO_LED_RED		GPIO_PORTC | 27
-#define VP6500_GPIO_LED_GREEN		GPIO_PORTC | 28
-#define VP6500_GPIO_LED_CAMERA		GPIO_PORTC | 29
-#define VP6500_GPIO_BACKLIGHT_EN	GPIO_PORTE | 10
-
-#define VP6500_GPIO_TLV_RESET		GPIO_PORTB | 27
-#define VP6500_GPIO_TLV_ENABLE		GPIO_PORTC | 25
-
-#endif
diff --git a/target/linux/imx21/image/Makefile b/target/linux/imx21/image/Makefile
deleted file mode 100644
index 70636ae4d6..0000000000
--- a/target/linux/imx21/image/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Copyright (C) 2010 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/image.mk
-
-JFFS2_BLOCKSIZE=128k 16k
-#JFFS2OPTS += -n -s 2048
-JFFS2OPTS += -n
-
-define Image/BuildKernel
-	mkdir -p $(BIN_DIR)
-	cp $(KDIR)/vmlinuz $(BIN_DIR)/$(IMG_PREFIX)-zImage
-endef
-
-define Image/Prepare
-	cp $(LINUX_DIR)/arch/arm/boot/zImage $(KDIR)/vmlinuz
-endef
-
-
-define Image/Build/squashfs
-    $(call prepare_generic_squashfs,$(BIN_DIR)/$(IMG_PREFIX)-root.$(1))
-endef
-
-$(eval $(call BuildImage))
diff --git a/target/linux/imx21/patches/010-mach-vp6500.patch b/target/linux/imx21/patches/010-mach-vp6500.patch
deleted file mode 100644
index 37bfa676f9..0000000000
--- a/target/linux/imx21/patches/010-mach-vp6500.patch
+++ /dev/null
@@ -1,22 +0,0 @@
---- a/arch/arm/mach-imx/Kconfig
-+++ b/arch/arm/mach-imx/Kconfig
-@@ -83,6 +83,12 @@ if MACH_MX27
- 
- comment "MX27 platforms:"
- 
-+config MACH_VP6500
-+	bool "Phillips VP6500 VoIP phone"
-+	depends on MACH_MX21
-+	help
-+	  Include support for the Phillips VP6500 VoIP phone.
-+
- config MACH_MX27ADS
- 	bool "MX27ADS platform"
- 	select IMX_HAVE_PLATFORM_IMX_I2C
---- a/arch/arm/mach-imx/Makefile
-+++ b/arch/arm/mach-imx/Makefile
-@@ -32,3 +32,4 @@ obj-$(CONFIG_MACH_CPUIMX27) += mach-cpui
- obj-$(CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD) += eukrea_mbimx27-baseboard.o
- obj-$(CONFIG_MACH_PCA100) += mach-pca100.o
- obj-$(CONFIG_MACH_MXT_TD60) += mach-mxt_td60.o
-+obj-$(CONFIG_MACH_VP6500) += mach-vp6500.o
diff --git a/target/linux/imx21/patches/011-mach-type.patch b/target/linux/imx21/patches/011-mach-type.patch
deleted file mode 100644
index 873f03083a..0000000000
--- a/target/linux/imx21/patches/011-mach-type.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/arch/arm/tools/mach-types
-+++ b/arch/arm/tools/mach-types
-@@ -530,7 +530,7 @@ sg560			MACH_SG560		SG560			513
- dp1000			MACH_DP1000		DP1000			514
- omap_osk		MACH_OMAP_OSK		OMAP_OSK		515
- rg100v3			MACH_RG100V3		RG100V3			516
--mx2ads			MACH_MX2ADS		MX2ADS			517
-+vp6500			MACH_VP6500		VP6500			517
- pxa_kilo		MACH_PXA_KILO		PXA_KILO		518
- ixp4xx_eagle		MACH_IXP4XX_EAGLE	IXP4XX_EAGLE		519
- tosa			MACH_TOSA		TOSA			520
diff --git a/target/linux/imx21/patches/040-pwm.patch b/target/linux/imx21/patches/040-pwm.patch
deleted file mode 100644
index af47ad1de0..0000000000
--- a/target/linux/imx21/patches/040-pwm.patch
+++ /dev/null
@@ -1,137 +0,0 @@
---- a/arch/arm/plat-mxc/pwm.c
-+++ b/arch/arm/plat-mxc/pwm.c
-@@ -25,6 +25,11 @@
- #define MX1_PWMS    0x04   /* PWM Sample Register */
- #define MX1_PWMP    0x08   /* PWM Period Register */
- 
-+#define MX1_PWMC_EN (1 << 4)
-+#define MX1_PWMC_PRESCALER_MASK (0x7f << 8)
-+#define MX1_PWMC_PRESCALER(x) ((x & 0x7f) << 8)
-+#define MX1_PWMC_CLKSEL_MASK 0x3
-+#define MX1_PWMC_CLKSEL(x) ((x & 0x3))
- 
- /* i.MX27, i.MX31, i.MX35 share the same PWM function block: */
- 
-@@ -54,26 +59,33 @@ struct pwm_device {
- 
- int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
- {
-+	unsigned long long c;
-+	unsigned long period_cycles, duty_cycles, prescale;
-+
- 	if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
- 		return -EINVAL;
- 
-+	c = clk_get_rate(pwm->clk);
-+
-+	c = c * period_ns;
-+
-+	if (cpu_is_mx1() || cpu_is_mx2())
-+		c >>= 1;
-+
-+	do_div(c, 1000000000);
-+	period_cycles = c;
-+
-+	prescale = period_cycles / 0x10000 + 1;
-+
-+	period_cycles /= prescale;
-+	c = (unsigned long long)period_cycles * duty_ns;
-+	do_div(c, period_ns);
-+	duty_cycles = c;
-+
-+
- 	if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
--		unsigned long long c;
--		unsigned long period_cycles, duty_cycles, prescale;
- 		u32 cr;
- 
--		c = clk_get_rate(pwm->clk);
--		c = c * period_ns;
--		do_div(c, 1000000000);
--		period_cycles = c;
--
--		prescale = period_cycles / 0x10000 + 1;
--
--		period_cycles /= prescale;
--		c = (unsigned long long)period_cycles * duty_ns;
--		do_div(c, period_ns);
--		duty_cycles = c;
--
- 		writel(duty_cycles, pwm->mmio_base + MX3_PWMSAR);
- 		writel(period_cycles, pwm->mmio_base + MX3_PWMPR);
- 
-@@ -86,25 +98,28 @@ int pwm_config(struct pwm_device *pwm, i
- 
- 		writel(cr, pwm->mmio_base + MX3_PWMCR);
- 	} else if (cpu_is_mx1() || cpu_is_mx21()) {
--		/* The PWM subsystem allows for exact frequencies. However,
--		 * I cannot connect a scope on my device to the PWM line and
--		 * thus cannot provide the program the PWM controller
--		 * exactly. Instead, I'm relying on the fact that the
--		 * Bootloader (u-boot or WinCE+haret) has programmed the PWM
--		 * function group already. So I'll just modify the PWM sample
--		 * register to follow the ratio of duty_ns vs. period_ns
--		 * accordingly.
--		 *
--		 * This is good enough for programming the brightness of
--		 * the LCD backlight.
--		 *
--		 * The real implementation would divide PERCLK[0] first by
--		 * both the prescaler (/1 .. /128) and then by CLKSEL
--		 * (/2 .. /16).
--		 */
--		u32 max = readl(pwm->mmio_base + MX1_PWMP);
--		u32 p = max * duty_ns / period_ns;
--		writel(max - p, pwm->mmio_base + MX1_PWMS);
-+		unsigned long clksel = 0;
-+		u32 ctrl;
-+
-+		while (prescale >= 0x80 && clksel < 4) {
-+			prescale >>= 1;
-+			++clksel;
-+		}
-+
-+		if (clksel > 3)
-+			return -EINVAL;
-+
-+		ctrl = readl(pwm->mmio_base + MX1_PWMC);
-+		writel(ctrl & ~MX1_PWMC_EN, pwm->mmio_base + MX1_PWMC);
-+
-+		writel(duty_cycles, pwm->mmio_base + MX1_PWMS);
-+		writel(period_cycles, pwm->mmio_base + MX1_PWMP);
-+
-+		ctrl &= ~(MX1_PWMC_PRESCALER_MASK | MX1_PWMC_CLKSEL_MASK);
-+		ctrl |= MX1_PWMC_PRESCALER(prescale);
-+		ctrl |= MX1_PWMC_CLKSEL(clksel);
-+		writel(ctrl, pwm->mmio_base + MX1_PWMC);
-+
- 	} else {
- 		BUG();
- 	}
-@@ -116,6 +131,11 @@ EXPORT_SYMBOL(pwm_config);
- int pwm_enable(struct pwm_device *pwm)
- {
- 	int rc = 0;
-+	if (cpu_is_mx1() || cpu_is_mx2()) {
-+		u32 ctrl;
-+		ctrl = readl(pwm->mmio_base + MX1_PWMC);
-+		writel(ctrl | MX1_PWMC_EN, pwm->mmio_base + MX1_PWMC);
-+	}
- 
- 	if (!pwm->clk_enabled) {
- 		rc = clk_enable(pwm->clk);
-@@ -128,7 +148,13 @@ EXPORT_SYMBOL(pwm_enable);
- 
- void pwm_disable(struct pwm_device *pwm)
- {
--	writel(0, pwm->mmio_base + MX3_PWMCR);
-+	if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
-+		writel(0, pwm->mmio_base + MX3_PWMCR);
-+	} else if (cpu_is_mx1() || cpu_is_mx2()) {
-+		u32 ctrl;
-+		ctrl = readl(pwm->mmio_base + MX1_PWMC);
-+		writel(ctrl & ~MX1_PWMC_EN, pwm->mmio_base + MX1_PWMC);
-+	}
- 
- 	if (pwm->clk_enabled) {
- 		clk_disable(pwm->clk);