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linux-next/arch/arm/mach-omap2/board-h4.c
Paul Walmsley 4805734bcc OMAP2+: io: split omap2_init_common_hw() 
Split omap2_init_common_hw() into two functions.  The first,
omap2_init_common_infrastructure(), initializes the hwmod code and
data, the OMAP PM code, and the clock code and data.  The second,
omap2_init_common_devices(), handles any other early device
initialization that, for whatever reason, has not been or cannot be
moved to initcalls or early platform devices.

This patch is required for the hwmod postsetup patch, which allows
board files to change the state that hwmods should be placed into at
the conclusion of the hwmod _setup() function.  For example, for a
board whose creators wish to ensure watchdog coverage across the
entire kernel boot process, code to change the watchdog's postsetup
state will be added in the board-*.c file between the
omap2_init_common_infrastructure() and omap2_init_common_devices() function
calls.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2010-12-21 19:55:11 -07:00

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/*
* linux/arch/arm/mach-omap2/board-h4.c
*
* Copyright (C) 2005 Nokia Corporation
* Author: Paul Mundt <paul.mundt@nokia.com>
*
* Modified from mach-omap/omap1/board-generic.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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/input.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/gpio.h>
#include <plat/usb.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/keypad.h>
#include <plat/menelaus.h>
#include <plat/dma.h>
#include <plat/gpmc.h>
#include "mux.h"
#include "control.h"
#define H4_FLASH_CS 0
#define H4_SMC91X_CS 1
#define H4_ETHR_GPIO_IRQ 92
static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
static int h4_keymap[] = {
KEY(0, 0, KEY_LEFT),
KEY(0, 1, KEY_RIGHT),
KEY(0, 2, KEY_A),
KEY(0, 3, KEY_B),
KEY(0, 4, KEY_C),
KEY(1, 0, KEY_DOWN),
KEY(1, 1, KEY_UP),
KEY(1, 2, KEY_E),
KEY(1, 3, KEY_F),
KEY(1, 4, KEY_G),
KEY(2, 0, KEY_ENTER),
KEY(2, 1, KEY_I),
KEY(2, 2, KEY_J),
KEY(2, 3, KEY_K),
KEY(2, 4, KEY_3),
KEY(3, 0, KEY_M),
KEY(3, 1, KEY_N),
KEY(3, 2, KEY_O),
KEY(3, 3, KEY_P),
KEY(3, 4, KEY_Q),
KEY(4, 0, KEY_R),
KEY(4, 1, KEY_4),
KEY(4, 2, KEY_T),
KEY(4, 3, KEY_U),
KEY(4, 4, KEY_ENTER),
KEY(5, 0, KEY_V),
KEY(5, 1, KEY_W),
KEY(5, 2, KEY_L),
KEY(5, 3, KEY_S),
KEY(5, 4, KEY_ENTER),
0
};
static struct mtd_partition h4_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
{
.name = "bootloader",
.offset = 0,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next sector */
{
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = 0,
},
/* kernel */
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0
},
/* file system */
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct physmap_flash_data h4_flash_data = {
.width = 2,
.parts = h4_partitions,
.nr_parts = ARRAY_SIZE(h4_partitions),
};
static struct resource h4_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device h4_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &h4_flash_data,
},
.num_resources = 1,
.resource = &h4_flash_resource,
};
static struct omap_kp_platform_data h4_kp_data = {
.rows = 6,
.cols = 7,
.keymap = h4_keymap,
.keymapsize = ARRAY_SIZE(h4_keymap),
.rep = 1,
.row_gpios = row_gpios,
.col_gpios = col_gpios,
};
static struct platform_device h4_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &h4_kp_data,
},
};
static struct platform_device h4_lcd_device = {
.name = "lcd_h4",
.id = -1,
};
static struct platform_device *h4_devices[] __initdata = {
&h4_flash_device,
&h4_kp_device,
&h4_lcd_device,
};
/* 2420 Sysboot setup (2430 is different) */
static u32 get_sysboot_value(void)
{
return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
(OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
}
/* H4-2420's always used muxed mode, H4-2422's always use non-muxed
*
* Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
* correctly. The macro needs to look at production_id not just hawkeye.
*/
static u32 is_gpmc_muxed(void)
{
u32 mux;
mux = get_sysboot_value();
if ((mux & 0xF) == 0xd)
return 1; /* NAND config (could be either) */
if (mux & 0x2) /* if mux'ed */
return 1;
else
return 0;
}
static inline void __init h4_init_debug(void)
{
int eth_cs;
unsigned long cs_mem_base;
unsigned int muxed, rate;
struct clk *gpmc_fck;
eth_cs = H4_SMC91X_CS;
gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
if (IS_ERR(gpmc_fck)) {
WARN_ON(1);
return;
}
clk_enable(gpmc_fck);
rate = clk_get_rate(gpmc_fck);
clk_disable(gpmc_fck);
clk_put(gpmc_fck);
if (is_gpmc_muxed())
muxed = 0x200;
else
muxed = 0;
/* Make sure CS1 timings are correct */
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
0x00011000 | muxed);
if (rate >= 160000000) {
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
} else if (rate >= 130000000) {
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
} else {/* rate = 100000000 */
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
}
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
goto out;
}
udelay(100);
omap_mux_init_gpio(92, 0);
if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
gpmc_cs_free(eth_cs);
out:
clk_disable(gpmc_fck);
clk_put(gpmc_fck);
}
static void __init h4_init_flash(void)
{
unsigned long base;
if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
printk("Can't request GPMC CS for flash\n");
return;
}
h4_flash_resource.start = base;
h4_flash_resource.end = base + SZ_64M - 1;
}
static struct omap_lcd_config h4_lcd_config __initdata = {
.ctrl_name = "internal",
};
static struct omap_usb_config h4_usb_config __initdata = {
/* S1.10 OFF -- usb "download port"
* usb0 switched to Mini-B port and isp1105 transceiver;
* S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
*/
.register_dev = 1,
.pins[0] = 3,
/* .hmc_mode = 0x14,*/ /* 0:dev 1:host 2:disable */
.hmc_mode = 0x00, /* 0:dev|otg 1:disable 2:disable */
};
static struct omap_board_config_kernel h4_config[] __initdata = {
{ OMAP_TAG_LCD, &h4_lcd_config },
};
static void __init omap_h4_init_irq(void)
{
omap_board_config = h4_config;
omap_board_config_size = ARRAY_SIZE(h4_config);
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
omap_init_irq();
h4_init_flash();
}
static struct at24_platform_data m24c01 = {
.byte_len = SZ_1K / 8,
.page_size = 16,
};
static struct i2c_board_info __initdata h4_i2c_board_info[] = {
{
I2C_BOARD_INFO("isp1301_omap", 0x2d),
.irq = OMAP_GPIO_IRQ(125),
},
{ /* EEPROM on mainboard */
I2C_BOARD_INFO("24c01", 0x52),
.platform_data = &m24c01,
},
{ /* EEPROM on cpu card */
I2C_BOARD_INFO("24c01", 0x57),
.platform_data = &m24c01,
},
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static void __init omap_h4_init(void)
{
omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on
* if not needed.
*/
#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
if (omap_has_menelaus()) {
omap_mux_init_signal("sdrc_a14.gpio0",
OMAP_PULL_ENA | OMAP_PULL_UP);
omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
omap_mux_init_signal("gpio_98", 0);
row_gpios[5] = 0;
col_gpios[2] = 15;
col_gpios[6] = 18;
} else {
omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
omap_mux_init_signal("gpio_100", 0);
omap_mux_init_signal("gpio_98", 0);
}
omap_mux_init_signal("gpio_90", 0);
omap_mux_init_signal("gpio_91", 0);
omap_mux_init_signal("gpio_36", 0);
omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
omap_mux_init_signal("gpio_97", 0);
#endif
i2c_register_board_info(1, h4_i2c_board_info,
ARRAY_SIZE(h4_i2c_board_info));
platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
omap2_usbfs_init(&h4_usb_config);
omap_serial_init();
}
static void __init omap_h4_map_io(void)
{
omap2_set_globals_242x();
omap242x_map_common_io();
}
MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
.boot_params = 0x80000100,
.map_io = omap_h4_map_io,
.reserve = omap_reserve,
.init_irq = omap_h4_init_irq,
.init_machine = omap_h4_init,
.timer = &omap_timer,
MACHINE_END
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