kernel-ark/arch/arm/mach-pxa/idp.c
Linus Torvalds 9cd11c0c47 ARM: soc: multiplatform enablement
This is a pretty significant branch. It's the introduction of the
 first multiplatform support on ARM, and with this (and the later
 branch) merged, it is now possible to build one kernel that contains
 support for highbank, vexpress, mvebu, socfpga, and picoxcell. More
 platforms will be convered over in the next few releases.
 
 Two critical last things had to be done for this to be practical and
 possible:
 * Today each platform has its own include directory under
   mach-<mach>/include/mach/*, and traditionally that is where a lot of
   driver/platform shared definitions have gone, such as platform data
   structures. They now need to move out to a common location instead,
   and this branch moves a large number of those out to
   include/linux/platform_data.
 * Each platform used to list the device trees to compile for its
   boards in mach-<mach>/Makefile.boot.
 
 Both of the above changes will mean that there are some merge
 conflicts to come (and some to resolve here). It's a one-time move and
 once it settles in, we should be good for quite a while. Sorry for the
 overhead.
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc multiplatform enablement from Olof Johansson:
 "This is a pretty significant branch.  It's the introduction of the
  first multiplatform support on ARM, and with this (and the later
  branch) merged, it is now possible to build one kernel that contains
  support for highbank, vexpress, mvebu, socfpga, and picoxcell.  More
  platforms will be convered over in the next few releases.

  Two critical last things had to be done for this to be practical and
  possible:
   * Today each platform has its own include directory under
     mach-<mach>/include/mach/*, and traditionally that is where a lot
     of driver/platform shared definitions have gone, such as platform
     data structures.  They now need to move out to a common location
     instead, and this branch moves a large number of those out to
     include/linux/platform_data.
   * Each platform used to list the device trees to compile for its
     boards in mach-<mach>/Makefile.boot.

  Both of the above changes will mean that there are some merge
  conflicts to come (and some to resolve here).  It's a one-time move
  and once it settles in, we should be good for quite a while.  Sorry
  for the overhead."

Fix conflicts as per Olof.

* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
  ARM: add v7 multi-platform defconfig
  ARM: msm: Move core.h contents into common.h
  ARM: highbank: call highbank_pm_init from .init_machine
  ARM: dtb: move all dtb targets to common Makefile
  ARM: spear: move platform_data definitions
  ARM: samsung: move platform_data definitions
  ARM: orion: move platform_data definitions
  ARM: vexpress: convert to multi-platform
  ARM: initial multiplatform support
  ARM: mvebu: move armada-370-xp.h in mach dir
  ARM: vexpress: remove dependency on mach/* headers
  ARM: picoxcell: remove dependency on mach/* headers
  ARM: move all dtb targets out of Makefile.boot
  ARM: picoxcell: move debug macros to include/debug
  ARM: socfpga: move debug macros to include/debug
  ARM: mvebu: move debug macros to include/debug
  ARM: vexpress: move debug macros to include/debug
  ARM: highbank: move debug macros to include/debug
  ARM: move debug macros to common location
  ARM: make mach/gpio.h headers optional
  ...
2012-10-01 19:11:38 -07:00

286 lines
5.9 KiB
C

/*
* linux/arch/arm/mach-pxa/idp.c
*
* 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.
*
* Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
*
* 2001-09-13: Cliff Brake <cbrake@accelent.com>
* Initial code
*
* 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
* <http://www.vibren.com> <http://bec-systems.com>
* Updated for 2.6 kernel
*
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/pxa25x.h>
#include <mach/idp.h>
#include <linux/platform_data/video-pxafb.h>
#include <mach/bitfield.h>
#include <linux/platform_data/mmc-pxamci.h>
#include "generic.h"
#include "devices.h"
/* TODO:
* - add pxa2xx_audio_ops_t device structure
* - Ethernet interrupt
*/
static unsigned long idp_pin_config[] __initdata = {
/* LCD */
GPIOxx_LCD_DSTN_16BPP,
/* BTUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
/* STUART */
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
/* Ethernet */
GPIO33_nCS_5, /* Ethernet CS */
GPIO4_GPIO, /* Ethernet IRQ */
};
static struct resource smc91x_resources[] = {
[0] = {
.start = (IDP_ETH_PHYS + 0x300),
.end = (IDP_ETH_PHYS + 0xfffff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_GPIO_TO_IRQ(4),
.end = PXA_GPIO_TO_IRQ(4),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
}
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
static void idp_backlight_power(int on)
{
if (on) {
IDP_CPLD_LCD |= (1<<1);
} else {
IDP_CPLD_LCD &= ~(1<<1);
}
}
static void idp_vlcd(int on)
{
if (on) {
IDP_CPLD_LCD |= (1<<2);
} else {
IDP_CPLD_LCD &= ~(1<<2);
}
}
static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
{
if (on) {
IDP_CPLD_LCD |= (1<<0);
} else {
IDP_CPLD_LCD &= ~(1<<0);
}
/* call idp_vlcd for now as core driver does not support
* both power and vlcd hooks. Note, this is not technically
* the correct sequence, but seems to work. Disclaimer:
* this may eventually damage the display.
*/
idp_vlcd(on);
}
static struct pxafb_mode_info sharp_lm8v31_mode = {
.pixclock = 270000,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 1,
.left_margin = 3,
.right_margin = 3,
.vsync_len = 1,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.cmap_greyscale = 0,
};
static struct pxafb_mach_info sharp_lm8v31 = {
.modes = &sharp_lm8v31_mode,
.num_modes = 1,
.cmap_inverse = 0,
.cmap_static = 0,
.lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
LCD_AC_BIAS_FREQ(255),
.pxafb_backlight_power = &idp_backlight_power,
.pxafb_lcd_power = &idp_lcd_power
};
static struct pxamci_platform_data idp_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_power = -1,
};
static void __init idp_init(void)
{
printk("idp_init()\n");
pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
platform_device_register(&smc91x_device);
//platform_device_register(&mst_audio_device);
pxa_set_fb_info(NULL, &sharp_lm8v31);
pxa_set_mci_info(&idp_mci_platform_data);
}
static struct map_desc idp_io_desc[] __initdata = {
{
.virtual = IDP_COREVOLT_VIRT,
.pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
.length = IDP_COREVOLT_SIZE,
.type = MT_DEVICE
}, {
.virtual = IDP_CPLD_VIRT,
.pfn = __phys_to_pfn(IDP_CPLD_PHYS),
.length = IDP_CPLD_SIZE,
.type = MT_DEVICE
}
};
static void __init idp_map_io(void)
{
pxa25x_map_io();
iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
}
/* LEDs */
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
struct idp_led {
struct led_classdev cdev;
u8 mask;
};
/*
* The triggers lines up below will only be used if the
* LED triggers are compiled in.
*/
static const struct {
const char *name;
const char *trigger;
} idp_leds[] = {
{ "idp:green", "heartbeat", },
{ "idp:red", "cpu0", },
};
static void idp_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct idp_led *led = container_of(cdev,
struct idp_led, cdev);
u32 reg = IDP_CPLD_LED_CONTROL;
if (b != LED_OFF)
reg &= ~led->mask;
else
reg |= led->mask;
IDP_CPLD_LED_CONTROL = reg;
}
static enum led_brightness idp_led_get(struct led_classdev *cdev)
{
struct idp_led *led = container_of(cdev,
struct idp_led, cdev);
return (IDP_CPLD_LED_CONTROL & led->mask) ? LED_OFF : LED_FULL;
}
static int __init idp_leds_init(void)
{
int i;
if (!machine_is_pxa_idp())
return -ENODEV;
for (i = 0; i < ARRAY_SIZE(idp_leds); i++) {
struct idp_led *led;
led = kzalloc(sizeof(*led), GFP_KERNEL);
if (!led)
break;
led->cdev.name = idp_leds[i].name;
led->cdev.brightness_set = idp_led_set;
led->cdev.brightness_get = idp_led_get;
led->cdev.default_trigger = idp_leds[i].trigger;
if (i == 0)
led->mask = IDP_HB_LED;
else
led->mask = IDP_BUSY_LED;
if (led_classdev_register(NULL, &led->cdev) < 0) {
kfree(led);
break;
}
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(idp_leds_init);
#endif
MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
/* Maintainer: Vibren Technologies */
.map_io = idp_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa25x_init_irq,
.handle_irq = pxa25x_handle_irq,
.timer = &pxa_timer,
.init_machine = idp_init,
.restart = pxa_restart,
MACHINE_END