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linux-next/arch/arm/mach-omap2/board-cm-t3517.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-cm-t3517.c
*
* Support for the CompuLab CM-T3517 modules
*
* Copyright (C) 2010 CompuLab, Ltd.
* Author: Igor Grinberg <grinberg@compulab.co.il>
*
* 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.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/rtc-v3020.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/can/platform/ti_hecc.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/usb.h>
#include <plat/nand.h>
#include <plat/gpmc.h>
#include <mach/am35xx.h>
#include "mux.h"
#include "control.h"
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led cm_t3517_leds[] = {
[0] = {
.gpio = 186,
.name = "cm-t3517:green",
.default_trigger = "heartbeat",
.active_low = 0,
},
};
static struct gpio_led_platform_data cm_t3517_led_pdata = {
.num_leds = ARRAY_SIZE(cm_t3517_leds),
.leds = cm_t3517_leds,
};
static struct platform_device cm_t3517_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &cm_t3517_led_pdata,
},
};
static void __init cm_t3517_init_leds(void)
{
platform_device_register(&cm_t3517_led_device);
}
#else
static inline void cm_t3517_init_leds(void) {}
#endif
#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
static struct resource cm_t3517_hecc_resources[] = {
{
.start = AM35XX_IPSS_HECC_BASE,
.end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = INT_35XX_HECC0_IRQ,
.end = INT_35XX_HECC0_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
.scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
.scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
.hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
.int_line = AM35XX_HECC_INT_LINE,
.version = AM35XX_HECC_VERSION,
};
static struct platform_device cm_t3517_hecc_device = {
.name = "ti_hecc",
.id = 1,
.num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
.resource = cm_t3517_hecc_resources,
.dev = {
.platform_data = &cm_t3517_hecc_pdata,
},
};
static void cm_t3517_init_hecc(void)
{
platform_device_register(&cm_t3517_hecc_device);
}
#else
static inline void cm_t3517_init_hecc(void) {}
#endif
#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
#define RTC_IO_GPIO (153)
#define RTC_WR_GPIO (154)
#define RTC_RD_GPIO (160)
#define RTC_CS_GPIO (163)
struct v3020_platform_data cm_t3517_v3020_pdata = {
.use_gpio = 1,
.gpio_cs = RTC_CS_GPIO,
.gpio_wr = RTC_WR_GPIO,
.gpio_rd = RTC_RD_GPIO,
.gpio_io = RTC_IO_GPIO,
};
static struct platform_device cm_t3517_rtc_device = {
.name = "v3020",
.id = -1,
.dev = {
.platform_data = &cm_t3517_v3020_pdata,
}
};
static void __init cm_t3517_init_rtc(void)
{
platform_device_register(&cm_t3517_rtc_device);
}
#else
static inline void cm_t3517_init_rtc(void) {}
#endif
#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
#define HSUSB1_RESET_GPIO (146)
#define HSUSB2_RESET_GPIO (147)
#define USB_HUB_RESET_GPIO (152)
static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = true,
.reset_gpio_port[0] = HSUSB1_RESET_GPIO,
.reset_gpio_port[1] = HSUSB2_RESET_GPIO,
.reset_gpio_port[2] = -EINVAL,
};
static int cm_t3517_init_usbh(void)
{
int err;
err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
if (err) {
pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
} else {
gpio_direction_output(USB_HUB_RESET_GPIO, 0);
udelay(10);
gpio_set_value(USB_HUB_RESET_GPIO, 1);
msleep(1);
}
usb_ehci_init(&cm_t3517_ehci_pdata);
return 0;
}
#else
static inline int cm_t3517_init_usbh(void)
{
return 0;
}
#endif
#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
#define NAND_BLOCK_SIZE SZ_128K
static struct mtd_partition cm_t3517_nand_partitions[] = {
{
.name = "xloader",
.offset = 0, /* Offset = 0x00000 */
.size = 4 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE
},
{
.name = "uboot",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
.size = 15 * NAND_BLOCK_SIZE,
},
{
.name = "uboot environment",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
.size = 2 * NAND_BLOCK_SIZE,
},
{
.name = "linux",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
.size = 32 * NAND_BLOCK_SIZE,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
.size = MTDPART_SIZ_FULL,
},
};
static struct omap_nand_platform_data cm_t3517_nand_data = {
.parts = cm_t3517_nand_partitions,
.nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions),
.dma_channel = -1, /* disable DMA in OMAP NAND driver */
.cs = 0,
};
static void __init cm_t3517_init_nand(void)
{
if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
pr_err("CM-T3517: NAND initialization failed\n");
}
#else
static inline void cm_t3517_init_nand(void) {}
#endif
static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
};
static void __init cm_t3517_init_irq(void)
{
omap_board_config = cm_t3517_config;
omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
omap_init_irq();
}
static struct omap_board_mux board_mux[] __initdata = {
/* GPIO186 - Green LED */
OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* RTC GPIOs: IO, WR#, RD#, CS# */
OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* HSUSB1 RESET */
OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* HSUSB2 RESET */
OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* CM-T3517 USB HUB nRESET */
OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
static void __init cm_t3517_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_serial_init();
cm_t3517_init_leds();
cm_t3517_init_nand();
cm_t3517_init_rtc();
cm_t3517_init_usbh();
cm_t3517_init_hecc();
}
MACHINE_START(CM_T3517, "Compulab CM-T3517")
.boot_params = 0x80000100,
.map_io = omap3_map_io,
.reserve = omap_reserve,
.init_irq = cm_t3517_init_irq,
.init_machine = cm_t3517_init,
.timer = &omap_timer,
MACHINE_END
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