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alistair23-linux/arch/arm/mach-clps711x/board-p720t.c
Linus Torvalds 44c916d58b ARM: SoC cleanups for 3.17 
This merge window brings a good size of cleanups on various
 platforms. Among the bigger ones:
 
 * Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have
   lacked active support for quite a while, and after asking around nobody
   showed interest in keeping them around. If needed, they could be
   resurrected in the future but it's more likely that we would prefer
   reintroduction of them as DT and multiplatform-enabled platforms
   instead.
 * OMAP4 controller code register define diet. They defined a lot of registers
   that were never actually used, etc.
 * Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate)
   to drivers/soc so it can be shared with 64-bit code. This also converts them
   over to traditional driver models where possible.
 * Removal of legacy gpio-samsung driver, since the last users have been
   removed (moved to pinctrl)
 
 Plus a bunch of smaller changes for various platforms that sort of
 dissapear in the diffstat for the above. clps711x cleanups, shmobile
 header file refactoring/moves for multiplatform friendliness, some misc
 cleanups, etc.
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Merge tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This merge window brings a good size of cleanups on various platforms.
  Among the bigger ones:

   - Removal of Samsung s5pc100 and s5p64xx platforms.  Both of these
     have lacked active support for quite a while, and after asking
     around nobody showed interest in keeping them around.  If needed,
     they could be resurrected in the future but it's more likely that
     we would prefer reintroduction of them as DT and
     multiplatform-enabled platforms instead.

   - OMAP4 controller code register define diet.  They defined a lot of
     registers that were never actually used, etc.

   - Move of some of the Tegra platform code (PMC, APBIO, fuse,
     powergate) to drivers/soc so it can be shared with 64-bit code.
     This also converts them over to traditional driver models where
     possible.

   - Removal of legacy gpio-samsung driver, since the last users have
     been removed (moved to pinctrl)

  Plus a bunch of smaller changes for various platforms that sort of
  dissapear in the diffstat for the above.  clps711x cleanups, shmobile
  header file refactoring/moves for multiplatform friendliness, some
  misc cleanups, etc"

* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
  drivers: CCI: Correct use of ! and &
  video: clcd-versatile: Depend on ARM
  video: fix up versatile CLCD helper move
  MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
  ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
  MAINTAINERS: Remove Kirkwood
  ARM: tegra: Convert PMC to a driver
  soc/tegra: fuse: Set up in early initcall
  ARM: tegra: Always lock the CPU reset vector
  ARM: tegra: Setup CPU hotplug in a pure initcall
  soc/tegra: Implement runtime check for Tegra SoCs
  soc/tegra: fuse: fix dummy functions
  soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
  soc/tegra: Add efuse and apbmisc bindings
  soc/tegra: Add efuse driver for Tegra
  ARM: tegra: move fuse exports to soc/tegra/fuse.h
  ARM: tegra: export apb dma readl/writel
  ARM: tegra: Use a function to get the chip ID
  ARM: tegra: Sort includes alphabetically
  ARM: tegra: Move includes to include/soc/tegra
  ...
2014-08-08 11:00:26 -07:00

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/*
* linux/arch/arm/mach-clps711x/p720t.c
*
* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
#include <linux/basic_mmio_gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <video/platform_lcd.h>
#include "common.h"
#include "devices.h"
#define P720T_USERLED CLPS711X_GPIO(3, 0)
#define P720T_NAND_CLE CLPS711X_GPIO(4, 0)
#define P720T_NAND_ALE CLPS711X_GPIO(4, 1)
#define P720T_NAND_NCE CLPS711X_GPIO(4, 2)
#define P720T_NAND_BASE (CLPS711X_SDRAM1_BASE)
#define P720T_MMGPIO_BASE (CLPS711X_NR_GPIO)
#define SYSPLD_PHYS_BASE IOMEM(CS1_PHYS_BASE)
#define PLD_INT (SYSPLD_PHYS_BASE + 0x000000)
#define PLD_INT_MMGPIO_BASE (P720T_MMGPIO_BASE + 0)
#define PLD_INT_PENIRQ (PLD_INT_MMGPIO_BASE + 5)
#define PLD_INT_UCB_IRQ (PLD_INT_MMGPIO_BASE + 1)
#define PLD_INT_KBD_ATN (PLD_INT_MMGPIO_BASE + 0) /* EINT1 */
#define PLD_PWR (SYSPLD_PHYS_BASE + 0x000004)
#define PLD_PWR_MMGPIO_BASE (P720T_MMGPIO_BASE + 8)
#define PLD_PWR_EXT (PLD_PWR_MMGPIO_BASE + 5)
#define PLD_PWR_MODE (PLD_PWR_MMGPIO_BASE + 4) /* 1 = PWM, 0 = PFM */
#define PLD_S4_ON (PLD_PWR_MMGPIO_BASE + 3) /* LCD bias voltage enable */
#define PLD_S3_ON (PLD_PWR_MMGPIO_BASE + 2) /* LCD backlight enable */
#define PLD_S2_ON (PLD_PWR_MMGPIO_BASE + 1) /* LCD 3V3 supply enable */
#define PLD_S1_ON (PLD_PWR_MMGPIO_BASE + 0) /* LCD 3V supply enable */
#define PLD_KBD (SYSPLD_PHYS_BASE + 0x000008)
#define PLD_KBD_MMGPIO_BASE (P720T_MMGPIO_BASE + 16)
#define PLD_KBD_WAKE (PLD_KBD_MMGPIO_BASE + 1)
#define PLD_KBD_EN (PLD_KBD_MMGPIO_BASE + 0)
#define PLD_SPI (SYSPLD_PHYS_BASE + 0x00000c)
#define PLD_SPI_MMGPIO_BASE (P720T_MMGPIO_BASE + 24)
#define PLD_SPI_EN (PLD_SPI_MMGPIO_BASE + 0)
#define PLD_IO (SYSPLD_PHYS_BASE + 0x000010)
#define PLD_IO_MMGPIO_BASE (P720T_MMGPIO_BASE + 32)
#define PLD_IO_BOOTSEL (PLD_IO_MMGPIO_BASE + 6) /* Boot sel switch */
#define PLD_IO_USER (PLD_IO_MMGPIO_BASE + 5) /* User defined switch */
#define PLD_IO_LED3 (PLD_IO_MMGPIO_BASE + 4)
#define PLD_IO_LED2 (PLD_IO_MMGPIO_BASE + 3)
#define PLD_IO_LED1 (PLD_IO_MMGPIO_BASE + 2)
#define PLD_IO_LED0 (PLD_IO_MMGPIO_BASE + 1)
#define PLD_IO_LEDEN (PLD_IO_MMGPIO_BASE + 0)
#define PLD_IRDA (SYSPLD_PHYS_BASE + 0x000014)
#define PLD_IRDA_MMGPIO_BASE (P720T_MMGPIO_BASE + 40)
#define PLD_IRDA_EN (PLD_IRDA_MMGPIO_BASE + 0)
#define PLD_COM2 (SYSPLD_PHYS_BASE + 0x000018)
#define PLD_COM2_MMGPIO_BASE (P720T_MMGPIO_BASE + 48)
#define PLD_COM2_EN (PLD_COM2_MMGPIO_BASE + 0)
#define PLD_COM1 (SYSPLD_PHYS_BASE + 0x00001c)
#define PLD_COM1_MMGPIO_BASE (P720T_MMGPIO_BASE + 56)
#define PLD_COM1_EN (PLD_COM1_MMGPIO_BASE + 0)
#define PLD_AUD (SYSPLD_PHYS_BASE + 0x000020)
#define PLD_AUD_MMGPIO_BASE (P720T_MMGPIO_BASE + 64)
#define PLD_AUD_DIV1 (PLD_AUD_MMGPIO_BASE + 6)
#define PLD_AUD_DIV0 (PLD_AUD_MMGPIO_BASE + 5)
#define PLD_AUD_CLK_SEL1 (PLD_AUD_MMGPIO_BASE + 4)
#define PLD_AUD_CLK_SEL0 (PLD_AUD_MMGPIO_BASE + 3)
#define PLD_AUD_MIC_PWR (PLD_AUD_MMGPIO_BASE + 2)
#define PLD_AUD_MIC_GAIN (PLD_AUD_MMGPIO_BASE + 1)
#define PLD_AUD_CODEC_EN (PLD_AUD_MMGPIO_BASE + 0)
#define PLD_CF (SYSPLD_PHYS_BASE + 0x000024)
#define PLD_CF_MMGPIO_BASE (P720T_MMGPIO_BASE + 72)
#define PLD_CF2_SLEEP (PLD_CF_MMGPIO_BASE + 5)
#define PLD_CF1_SLEEP (PLD_CF_MMGPIO_BASE + 4)
#define PLD_CF2_nPDREQ (PLD_CF_MMGPIO_BASE + 3)
#define PLD_CF1_nPDREQ (PLD_CF_MMGPIO_BASE + 2)
#define PLD_CF2_nIRQ (PLD_CF_MMGPIO_BASE + 1)
#define PLD_CF1_nIRQ (PLD_CF_MMGPIO_BASE + 0)
#define PLD_SDC (SYSPLD_PHYS_BASE + 0x000028)
#define PLD_SDC_MMGPIO_BASE (P720T_MMGPIO_BASE + 80)
#define PLD_SDC_INT_EN (PLD_SDC_MMGPIO_BASE + 2)
#define PLD_SDC_WP (PLD_SDC_MMGPIO_BASE + 1)
#define PLD_SDC_CD (PLD_SDC_MMGPIO_BASE + 0)
#define PLD_CODEC (SYSPLD_PHYS_BASE + 0x400000)
#define PLD_CODEC_MMGPIO_BASE (P720T_MMGPIO_BASE + 88)
#define PLD_CODEC_IRQ3 (PLD_CODEC_MMGPIO_BASE + 4)
#define PLD_CODEC_IRQ2 (PLD_CODEC_MMGPIO_BASE + 3)
#define PLD_CODEC_IRQ1 (PLD_CODEC_MMGPIO_BASE + 2)
#define PLD_CODEC_EN (PLD_CODEC_MMGPIO_BASE + 0)
#define PLD_BRITE (SYSPLD_PHYS_BASE + 0x400004)
#define PLD_BRITE_MMGPIO_BASE (P720T_MMGPIO_BASE + 96)
#define PLD_BRITE_UP (PLD_BRITE_MMGPIO_BASE + 1)
#define PLD_BRITE_DN (PLD_BRITE_MMGPIO_BASE + 0)
#define PLD_LCDEN (SYSPLD_PHYS_BASE + 0x400008)
#define PLD_LCDEN_MMGPIO_BASE (P720T_MMGPIO_BASE + 104)
#define PLD_LCDEN_EN (PLD_LCDEN_MMGPIO_BASE + 0)
#define PLD_TCH (SYSPLD_PHYS_BASE + 0x400010)
#define PLD_TCH_MMGPIO_BASE (P720T_MMGPIO_BASE + 112)
#define PLD_TCH_PENIRQ (PLD_TCH_MMGPIO_BASE + 1)
#define PLD_TCH_EN (PLD_TCH_MMGPIO_BASE + 0)
#define PLD_GPIO (SYSPLD_PHYS_BASE + 0x400014)
#define PLD_GPIO_MMGPIO_BASE (P720T_MMGPIO_BASE + 120)
#define PLD_GPIO2 (PLD_GPIO_MMGPIO_BASE + 2)
#define PLD_GPIO1 (PLD_GPIO_MMGPIO_BASE + 1)
#define PLD_GPIO0 (PLD_GPIO_MMGPIO_BASE + 0)
static struct gpio p720t_gpios[] __initconst = {
{ PLD_S1_ON, GPIOF_OUT_INIT_LOW, "PLD_S1_ON" },
{ PLD_S2_ON, GPIOF_OUT_INIT_LOW, "PLD_S2_ON" },
{ PLD_S3_ON, GPIOF_OUT_INIT_LOW, "PLD_S3_ON" },
{ PLD_S4_ON, GPIOF_OUT_INIT_LOW, "PLD_S4_ON" },
{ PLD_KBD_EN, GPIOF_OUT_INIT_LOW, "PLD_KBD_EN" },
{ PLD_SPI_EN, GPIOF_OUT_INIT_LOW, "PLD_SPI_EN" },
{ PLD_IO_USER, GPIOF_OUT_INIT_LOW, "PLD_IO_USER" },
{ PLD_IO_LED0, GPIOF_OUT_INIT_LOW, "PLD_IO_LED0" },
{ PLD_IO_LED1, GPIOF_OUT_INIT_LOW, "PLD_IO_LED1" },
{ PLD_IO_LED2, GPIOF_OUT_INIT_LOW, "PLD_IO_LED2" },
{ PLD_IO_LED3, GPIOF_OUT_INIT_LOW, "PLD_IO_LED3" },
{ PLD_IO_LEDEN, GPIOF_OUT_INIT_LOW, "PLD_IO_LEDEN" },
{ PLD_IRDA_EN, GPIOF_OUT_INIT_LOW, "PLD_IRDA_EN" },
{ PLD_COM1_EN, GPIOF_OUT_INIT_HIGH, "PLD_COM1_EN" },
{ PLD_COM2_EN, GPIOF_OUT_INIT_HIGH, "PLD_COM2_EN" },
{ PLD_CODEC_EN, GPIOF_OUT_INIT_LOW, "PLD_CODEC_EN" },
{ PLD_LCDEN_EN, GPIOF_OUT_INIT_LOW, "PLD_LCDEN_EN" },
{ PLD_TCH_EN, GPIOF_OUT_INIT_LOW, "PLD_TCH_EN" },
{ P720T_USERLED,GPIOF_OUT_INIT_LOW, "USER_LED" },
};
static struct resource p720t_mmgpio_resource[] __initdata = {
DEFINE_RES_MEM_NAMED(0, 4, "dat"),
};
static struct bgpio_pdata p720t_mmgpio_pdata = {
.ngpio = 8,
};
static struct platform_device p720t_mmgpio __initdata = {
.name = "basic-mmio-gpio",
.id = -1,
.resource = p720t_mmgpio_resource,
.num_resources = ARRAY_SIZE(p720t_mmgpio_resource),
.dev = {
.platform_data = &p720t_mmgpio_pdata,
},
};
static void __init p720t_mmgpio_init(void __iomem *addrbase, int gpiobase)
{
p720t_mmgpio_resource[0].start = (unsigned long)addrbase;
p720t_mmgpio_pdata.base = gpiobase;
platform_device_register(&p720t_mmgpio);
}
static struct {
void __iomem *addrbase;
int gpiobase;
} mmgpios[] __initconst = {
{ PLD_INT, PLD_INT_MMGPIO_BASE },
{ PLD_PWR, PLD_PWR_MMGPIO_BASE },
{ PLD_KBD, PLD_KBD_MMGPIO_BASE },
{ PLD_SPI, PLD_SPI_MMGPIO_BASE },
{ PLD_IO, PLD_IO_MMGPIO_BASE },
{ PLD_IRDA, PLD_IRDA_MMGPIO_BASE },
{ PLD_COM2, PLD_COM2_MMGPIO_BASE },
{ PLD_COM1, PLD_COM1_MMGPIO_BASE },
{ PLD_AUD, PLD_AUD_MMGPIO_BASE },
{ PLD_CF, PLD_CF_MMGPIO_BASE },
{ PLD_SDC, PLD_SDC_MMGPIO_BASE },
{ PLD_CODEC, PLD_CODEC_MMGPIO_BASE },
{ PLD_BRITE, PLD_BRITE_MMGPIO_BASE },
{ PLD_LCDEN, PLD_LCDEN_MMGPIO_BASE },
{ PLD_TCH, PLD_TCH_MMGPIO_BASE },
{ PLD_GPIO, PLD_GPIO_MMGPIO_BASE },
};
static struct resource p720t_nand_resource[] __initdata = {
DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
};
static struct mtd_partition p720t_nand_parts[] __initdata = {
{
.name = "Flash partition 1",
.offset = 0,
.size = SZ_2M,
},
{
.name = "Flash partition 2",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
.gpio_rdy = -1,
.gpio_nce = P720T_NAND_NCE,
.gpio_ale = P720T_NAND_ALE,
.gpio_cle = P720T_NAND_CLE,
.gpio_nwp = -1,
.chip_delay = 15,
.parts = p720t_nand_parts,
.num_parts = ARRAY_SIZE(p720t_nand_parts),
};
static struct platform_device p720t_nand_pdev __initdata = {
.name = "gpio-nand",
.id = -1,
.resource = p720t_nand_resource,
.num_resources = ARRAY_SIZE(p720t_nand_resource),
.dev = {
.platform_data = &p720t_nand_pdata,
},
};
static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
if (power) {
gpio_set_value(PLD_LCDEN_EN, 1);
gpio_set_value(PLD_S1_ON, 1);
gpio_set_value(PLD_S2_ON, 1);
gpio_set_value(PLD_S4_ON, 1);
} else {
gpio_set_value(PLD_S1_ON, 0);
gpio_set_value(PLD_S2_ON, 0);
gpio_set_value(PLD_S4_ON, 0);
gpio_set_value(PLD_LCDEN_EN, 0);
}
}
static struct plat_lcd_data p720t_lcd_power_pdata = {
.set_power = p720t_lcd_power_set,
};
static void p720t_lcd_backlight_set_intensity(int intensity)
{
gpio_set_value(PLD_S3_ON, intensity);
}
static struct generic_bl_info p720t_lcd_backlight_pdata = {
.name = "lcd-backlight.0",
.default_intensity = 0x01,
.max_intensity = 0x01,
.set_bl_intensity = p720t_lcd_backlight_set_intensity,
};
static void __init
fixup_p720t(struct tag *tag, char **cmdline)
{
/*
* Our bootloader doesn't setup any tags (yet).
*/
if (tag->hdr.tag != ATAG_CORE) {
tag->hdr.tag = ATAG_CORE;
tag->hdr.size = tag_size(tag_core);
tag->u.core.flags = 0;
tag->u.core.pagesize = PAGE_SIZE;
tag->u.core.rootdev = 0x0100;
tag = tag_next(tag);
tag->hdr.tag = ATAG_MEM;
tag->hdr.size = tag_size(tag_mem32);
tag->u.mem.size = 4096;
tag->u.mem.start = PHYS_OFFSET;
tag = tag_next(tag);
tag->hdr.tag = ATAG_NONE;
tag->hdr.size = 0;
}
}
static struct gpio_led p720t_gpio_leds[] = {
{
.name = "User LED",
.default_trigger = "heartbeat",
.gpio = P720T_USERLED,
},
};
static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
.leds = p720t_gpio_leds,
.num_leds = ARRAY_SIZE(p720t_gpio_leds),
};
static void __init p720t_init(void)
{
int i;
clps711x_devices_init();
for (i = 0; i < ARRAY_SIZE(mmgpios); i++)
p720t_mmgpio_init(mmgpios[i].addrbase, mmgpios[i].gpiobase);
platform_device_register(&p720t_nand_pdev);
}
static void __init p720t_init_late(void)
{
WARN_ON(gpio_request_array(p720t_gpios, ARRAY_SIZE(p720t_gpios)));
platform_device_register_data(NULL, "platform-lcd", 0,
&p720t_lcd_power_pdata,
sizeof(p720t_lcd_power_pdata));
platform_device_register_data(NULL, "generic-bl", 0,
&p720t_lcd_backlight_pdata,
sizeof(p720t_lcd_backlight_pdata));
platform_device_register_simple("video-clps711x", 0, NULL, 0);
platform_device_register_data(NULL, "leds-gpio", 0,
&p720t_gpio_led_pdata,
sizeof(p720t_gpio_led_pdata));
}
MACHINE_START(P720T, "ARM-Prospector720T")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.atag_offset = 0x100,
.fixup = fixup_p720t,
.map_io = clps711x_map_io,
.init_irq = clps711x_init_irq,
.init_time = clps711x_timer_init,
.init_machine = p720t_init,
.init_late = p720t_init_late,
.restart = clps711x_restart,
MACHINE_END
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