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linux-next/arch/arm/mach-nomadik/board-nhk8815.c
Linus Torvalds 06fe918e9f These are the bulk pinctrl changes for kernel v3.7: 
- Add subdrivers for the DB8540 and NHK8815 Nomadik-type ASICs,
   provide platform config for the Nomadik.
 - Add a driver for the i.MX35.
 - Add a driver for the BCM2835, an advanced GPIO expander.
 - Various fixes and clean-ups and minor improvements for the core,
   Nomadik, pinctr-single, sirf drivers.
 - Some platform config for the ux500.
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Merge tag 'pinctrl-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl changes from Linus Walleij:
 "Some of this stuff is hitting arch/arm/* and have been ACKed by the
  ARM SoC folks, or it's device tree bindings pertaining to the specific
  driver.

  These are the bulk pinctrl changes for kernel v3.7:
   - Add subdrivers for the DB8540 and NHK8815 Nomadik-type ASICs,
     provide platform config for the Nomadik.
   - Add a driver for the i.MX35.
   - Add a driver for the BCM2835, an advanced GPIO expander.
   - Various fixes and clean-ups and minor improvements for the core,
     Nomadik, pinctr-single, sirf drivers.
   - Some platform config for the ux500."

* tag 'pinctrl-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (27 commits)
  pinctrl: add bcm2835 driver
  pinctrl: clarify idle vs sleep states
  pinctrl/nomadik: use irq_find_mapping()
  pinctrl: sirf: add lost chained_irq_enter and exit in sirfsoc_gpio_handle_irq
  pinctrl: sirf: initialize the irq_chip pointer of pinctrl_gpio_range
  pinctrl: sirf: fix spinlock deadlock in sirfsoc_gpio_set_input
  pinctrl: sirf: add missing pins to pinctrl list
  pinctrl: sirf: fix a typo in sirfsoc_gpio_probe
  pinctrl: pinctrl-single: add debugfs pin h/w state info
  ARM: ux500: 8500: update I2C sleep states pinctrl
  pinctrl: Fix potential memory leak in pinctrl_register_one_pin()
  ARM: ux500: tidy up pin sleep modes
  ARM: ux500: fix spi2 pin group
  pinctrl: imx: remove duplicated const
  pinctrl: document semantics vs GPIO
  ARM: ux500: 8500: use hsit_a_2 group for HSI
  pinctrl: use kasprintf() in pinmux_request_gpio()
  pinctrl: pinctrl-single: Add pinctrl-single,bits type of mux
  pinctrl/nomadik : add MC1_a_2 pin MC1 function group list
  pinctrl: pinctrl-single: Make sure we do not change bits outside of mask
  ...
2012-10-02 16:20:20 -07:00

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/*
* linux/arch/arm/mach-nomadik/board-8815nhk.c
*
* Copyright (C) STMicroelectronics
*
* 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.
*
* NHK15 board specifc driver definition
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <linux/amba/mmci.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/pinctrl/machine.h>
#include <asm/hardware/vic.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
#include <plat/gpio-nomadik.h>
#include <plat/mtu.h>
#include <plat/pincfg.h>
#include <linux/platform_data/mtd-nomadik-nand.h>
#include <mach/fsmc.h>
#include "cpu-8815.h"
/* Initial value for SRC control register: all timers use MXTAL/8 source */
#define SRC_CR_INIT_MASK 0x00007fff
#define SRC_CR_INIT_VAL 0x2aaa8000
/* These addresses span 16MB, so use three individual pages */
static struct resource nhk8815_nand_resources[] = {
{
.name = "nand_addr",
.start = NAND_IO_ADDR,
.end = NAND_IO_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
}, {
.name = "nand_cmd",
.start = NAND_IO_CMD,
.end = NAND_IO_CMD + 0xfff,
.flags = IORESOURCE_MEM,
}, {
.name = "nand_data",
.start = NAND_IO_DATA,
.end = NAND_IO_DATA + 0xfff,
.flags = IORESOURCE_MEM,
}
};
static int nhk8815_nand_init(void)
{
/* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
writel(0x0000000E, FSMC_PCR(0));
writel(0x000D0A00, FSMC_PMEM(0));
writel(0x00100A00, FSMC_PATT(0));
/* enable access to the chip select area */
writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
return 0;
}
/*
* These partitions are the same as those used in the 2.6.20 release
* shipped by the vendor; the first two partitions are mandated
* by the boot ROM, and the bootloader area is somehow oversized...
*/
static struct mtd_partition nhk8815_partitions[] = {
{
.name = "X-Loader(NAND)",
.offset = 0,
.size = SZ_256K,
}, {
.name = "MemInit(NAND)",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K,
}, {
.name = "BootLoader(NAND)",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
}, {
.name = "Kernel zImage(NAND)",
.offset = MTDPART_OFS_APPEND,
.size = 3 * SZ_1M,
}, {
.name = "Root Filesystem(NAND)",
.offset = MTDPART_OFS_APPEND,
.size = 22 * SZ_1M,
}, {
.name = "User Filesystem(NAND)",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
}
};
static struct nomadik_nand_platform_data nhk8815_nand_data = {
.parts = nhk8815_partitions,
.nparts = ARRAY_SIZE(nhk8815_partitions),
.options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING,
.init = nhk8815_nand_init,
};
static struct platform_device nhk8815_nand_device = {
.name = "nomadik_nand",
.dev = {
.platform_data = &nhk8815_nand_data,
},
.resource = nhk8815_nand_resources,
.num_resources = ARRAY_SIZE(nhk8815_nand_resources),
};
/* These are the partitions for the OneNand device, different from above */
static struct mtd_partition nhk8815_onenand_partitions[] = {
{
.name = "X-Loader(OneNAND)",
.offset = 0,
.size = SZ_256K,
}, {
.name = "MemInit(OneNAND)",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K,
}, {
.name = "BootLoader(OneNAND)",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M-SZ_256K,
}, {
.name = "SysImage(OneNAND)",
.offset = MTDPART_OFS_APPEND,
.size = 4 * SZ_1M,
}, {
.name = "Root Filesystem(OneNAND)",
.offset = MTDPART_OFS_APPEND,
.size = 22 * SZ_1M,
}, {
.name = "User Filesystem(OneNAND)",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
}
};
static struct onenand_platform_data nhk8815_onenand_data = {
.parts = nhk8815_onenand_partitions,
.nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
};
static struct resource nhk8815_onenand_resource[] = {
{
.start = 0x30000000,
.end = 0x30000000 + SZ_128K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device nhk8815_onenand_device = {
.name = "onenand-flash",
.id = -1,
.dev = {
.platform_data = &nhk8815_onenand_data,
},
.resource = nhk8815_onenand_resource,
.num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
};
static void __init nhk8815_onenand_init(void)
{
#ifdef CONFIG_MTD_ONENAND
/* Set up SMCS0 for OneNand */
writel(0x000030db, FSMC_BCR(0));
writel(0x02100551, FSMC_BTR(0));
#endif
}
static struct mmci_platform_data mmcsd_plat_data = {
.ocr_mask = MMC_VDD_29_30,
.f_max = 48000000,
.gpio_wp = -1,
.gpio_cd = 111,
.cd_invert = true,
.capabilities = MMC_CAP_MMC_HIGHSPEED |
MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
};
static int __init nhk8815_mmcsd_init(void)
{
int ret;
ret = gpio_request(112, "card detect bias");
if (ret)
return ret;
gpio_direction_output(112, 0);
amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
return 0;
}
module_init(nhk8815_mmcsd_init);
static struct resource nhk8815_eth_resources[] = {
{
.name = "smc91x-regs",
.start = 0x34000000 + 0x300,
.end = 0x34000000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = NOMADIK_GPIO_TO_IRQ(115),
.end = NOMADIK_GPIO_TO_IRQ(115),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
}
};
static struct platform_device nhk8815_eth_device = {
.name = "smc91x",
.resource = nhk8815_eth_resources,
.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
};
static int __init nhk8815_eth_init(void)
{
int gpio_nr = 115; /* hardwired in the board */
int err;
err = gpio_request(gpio_nr, "eth_irq");
if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
if (!err) err = gpio_direction_input(gpio_nr);
if (err)
pr_err("Error %i in %s\n", err, __func__);
return err;
}
device_initcall(nhk8815_eth_init);
static struct platform_device *nhk8815_platform_devices[] __initdata = {
&nhk8815_nand_device,
&nhk8815_onenand_device,
&nhk8815_eth_device,
/* will add more devices */
};
static void __init nomadik_timer_init(void)
{
u32 src_cr;
/* Configure timer sources in "system reset controller" ctrl reg */
src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
src_cr &= SRC_CR_INIT_MASK;
src_cr |= SRC_CR_INIT_VAL;
writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
}
static struct sys_timer nomadik_timer = {
.init = nomadik_timer_init,
};
static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
{
I2C_BOARD_INFO("stw4811", 0x2d),
},
};
static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
{
I2C_BOARD_INFO("camera", 0x10),
},
{
I2C_BOARD_INFO("stw5095", 0x1a),
},
{
I2C_BOARD_INFO("lis3lv02dl", 0x1d),
},
};
static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
{
I2C_BOARD_INFO("stw4811-usb", 0x2d),
},
};
static unsigned long out_low[] = { PIN_OUTPUT_LOW };
static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
static struct pinctrl_map __initdata nhk8815_pinmap[] = {
PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
/* Hog in MMC/SD card mux */
PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
/* MCCLK */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
/* MCCMD */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
/* MCCMDDIR */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
/* MCDAT3-0 */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
/* MCDAT0DIR */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
/* MCDAT31DIR */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
/* MCMSFBCLK */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
/* CD input GPIO */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
/* CD bias drive */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
};
static void __init nhk8815_platform_init(void)
{
pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
cpu8815_platform_init();
nhk8815_onenand_init();
platform_add_devices(nhk8815_platform_devices,
ARRAY_SIZE(nhk8815_platform_devices));
amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
i2c_register_board_info(0, nhk8815_i2c0_devices,
ARRAY_SIZE(nhk8815_i2c0_devices));
i2c_register_board_info(1, nhk8815_i2c1_devices,
ARRAY_SIZE(nhk8815_i2c1_devices));
i2c_register_board_info(2, nhk8815_i2c2_devices,
ARRAY_SIZE(nhk8815_i2c2_devices));
}
MACHINE_START(NOMADIK, "NHK8815")
/* Maintainer: ST MicroElectronics */
.atag_offset = 0x100,
.map_io = cpu8815_map_io,
.init_irq = cpu8815_init_irq,
.handle_irq = vic_handle_irq,
.timer = &nomadik_timer,
.init_machine = nhk8815_platform_init,
.restart = cpu8815_restart,
MACHINE_END
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