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kernel-ark/arch/arm/mach-omap2/board-am3517evm.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

519 lines
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/*
* linux/arch/arm/mach-omap2/board-am3517evm.c
*
* Copyright (C) 2009 Texas Instruments Incorporated
* Author: Ranjith Lohithakshan <ranjithl@ti.com>
*
* Based on mach-omap2/board-omap3evm.c
*
* 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 version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
* whether express or implied; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c/pca953x.h>
#include <linux/can/platform/ti_hecc.h>
#include <linux/davinci_emac.h>
#include <mach/hardware.h>
#include <mach/am35xx.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/display.h>
#include "mux.h"
#include "control.h"
#define AM35XX_EVM_MDIO_FREQUENCY (1000000)
static struct mdio_platform_data am3517_evm_mdio_pdata = {
.bus_freq = AM35XX_EVM_MDIO_FREQUENCY,
};
static struct resource am3517_mdio_resources[] = {
{
.start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
.end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device am3517_mdio_device = {
.name = "davinci_mdio",
.id = 0,
.num_resources = ARRAY_SIZE(am3517_mdio_resources),
.resource = am3517_mdio_resources,
.dev.platform_data = &am3517_evm_mdio_pdata,
};
static struct emac_platform_data am3517_evm_emac_pdata = {
.rmii_en = 1,
};
static struct resource am3517_emac_resources[] = {
{
.start = AM35XX_IPSS_EMAC_BASE,
.end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
.flags = IORESOURCE_MEM,
},
{
.start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
.end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
.flags = IORESOURCE_IRQ,
},
{
.start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
.end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
.flags = IORESOURCE_IRQ,
},
{
.start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
.end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
.flags = IORESOURCE_IRQ,
},
{
.start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
.end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device am3517_emac_device = {
.name = "davinci_emac",
.id = -1,
.num_resources = ARRAY_SIZE(am3517_emac_resources),
.resource = am3517_emac_resources,
};
static void am3517_enable_ethernet_int(void)
{
u32 regval;
regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
AM35XX_CPGMAC_C0_TX_PULSE_CLR |
AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
AM35XX_CPGMAC_C0_RX_THRESH_CLR);
omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
}
static void am3517_disable_ethernet_int(void)
{
u32 regval;
regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
AM35XX_CPGMAC_C0_TX_PULSE_CLR);
omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
}
static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
{
unsigned int regval;
pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET;
pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET;
pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET;
pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE;
pdata->version = EMAC_VERSION_2;
pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR;
pdata->interrupt_enable = am3517_enable_ethernet_int;
pdata->interrupt_disable = am3517_disable_ethernet_int;
am3517_emac_device.dev.platform_data = pdata;
platform_device_register(&am3517_emac_device);
platform_device_register(&am3517_mdio_device);
clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
NULL, &am3517_emac_device.dev);
regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
return ;
}
#define LCD_PANEL_PWR 176
#define LCD_PANEL_BKLIGHT_PWR 182
#define LCD_PANEL_PWM 181
static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
{
I2C_BOARD_INFO("s35390a", 0x30),
},
};
/*
* RTC - S35390A
*/
#define GPIO_RTCS35390A_IRQ 55
static void __init am3517_evm_rtc_init(void)
{
int r;
omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
if (r < 0) {
printk(KERN_WARNING "failed to request GPIO#%d\n",
GPIO_RTCS35390A_IRQ);
return;
}
r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
if (r < 0) {
printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
GPIO_RTCS35390A_IRQ);
gpio_free(GPIO_RTCS35390A_IRQ);
return;
}
am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
}
/*
* I2C GPIO Expander - TCA6416
*/
/* Mounted on Base-Board */
static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
.gpio_base = OMAP_MAX_GPIO_LINES,
};
static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
{
I2C_BOARD_INFO("tca6416", 0x21),
.platform_data = &am3517evm_gpio_expander_info_0,
},
};
/* Mounted on UI Card */
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
.gpio_base = OMAP_MAX_GPIO_LINES + 16,
};
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
.gpio_base = OMAP_MAX_GPIO_LINES + 32,
};
static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
{
I2C_BOARD_INFO("tca6416", 0x20),
.platform_data = &am3517evm_ui_gpio_expander_info_1,
},
{
I2C_BOARD_INFO("tca6416", 0x21),
.platform_data = &am3517evm_ui_gpio_expander_info_2,
},
};
static int __init am3517_evm_i2c_init(void)
{
omap_register_i2c_bus(1, 400, NULL, 0);
omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
ARRAY_SIZE(am3517evm_i2c2_boardinfo));
omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
ARRAY_SIZE(am3517evm_i2c3_boardinfo));
return 0;
}
static int lcd_enabled;
static int dvi_enabled;
#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
static void __init am3517_evm_display_init(void)
{
int r;
omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
/*
* Enable GPIO 182 = LCD Backlight Power
*/
r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
if (r) {
printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
return;
}
gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
/*
* Enable GPIO 181 = LCD Panel PWM
*/
r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
if (r) {
printk(KERN_ERR "failed to get lcd_pwm\n");
goto err_1;
}
gpio_direction_output(LCD_PANEL_PWM, 1);
/*
* Enable GPIO 176 = LCD Panel Power enable pin
*/
r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
if (r) {
printk(KERN_ERR "failed to get lcd_panel_pwr\n");
goto err_2;
}
gpio_direction_output(LCD_PANEL_PWR, 1);
printk(KERN_INFO "Display initialized successfully\n");
return;
err_2:
gpio_free(LCD_PANEL_PWM);
err_1:
gpio_free(LCD_PANEL_BKLIGHT_PWR);
}
#else
static void __init am3517_evm_display_init(void) {}
#endif
static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
{
if (dvi_enabled) {
printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
return -EINVAL;
}
gpio_set_value(LCD_PANEL_PWR, 1);
lcd_enabled = 1;
return 0;
}
static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
{
gpio_set_value(LCD_PANEL_PWR, 0);
lcd_enabled = 0;
}
static struct omap_dss_device am3517_evm_lcd_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "lcd",
.driver_name = "sharp_lq_panel",
.phy.dpi.data_lines = 16,
.platform_enable = am3517_evm_panel_enable_lcd,
.platform_disable = am3517_evm_panel_disable_lcd,
};
static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
{
return 0;
}
static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
{
}
static struct omap_dss_device am3517_evm_tv_device = {
.type = OMAP_DISPLAY_TYPE_VENC,
.name = "tv",
.driver_name = "venc",
.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
.platform_enable = am3517_evm_panel_enable_tv,
.platform_disable = am3517_evm_panel_disable_tv,
};
static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
{
if (lcd_enabled) {
printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
return -EINVAL;
}
dvi_enabled = 1;
return 0;
}
static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
{
dvi_enabled = 0;
}
static struct omap_dss_device am3517_evm_dvi_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "dvi",
.driver_name = "generic_panel",
.phy.dpi.data_lines = 24,
.platform_enable = am3517_evm_panel_enable_dvi,
.platform_disable = am3517_evm_panel_disable_dvi,
};
static struct omap_dss_device *am3517_evm_dss_devices[] = {
&am3517_evm_lcd_device,
&am3517_evm_tv_device,
&am3517_evm_dvi_device,
};
static struct omap_dss_board_info am3517_evm_dss_data = {
.num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
.devices = am3517_evm_dss_devices,
.default_device = &am3517_evm_lcd_device,
};
static struct platform_device am3517_evm_dss_device = {
.name = "omapdss",
.id = -1,
.dev = {
.platform_data = &am3517_evm_dss_data,
},
};
/*
* Board initialization
*/
static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
};
static struct platform_device *am3517_evm_devices[] __initdata = {
&am3517_evm_dss_device,
};
static void __init am3517_evm_init_irq(void)
{
omap_board_config = am3517_evm_config;
omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
omap_init_irq();
}
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
.mode = MUSB_OTG,
.power = 500,
};
static __init void am3517_evm_musb_init(void)
{
u32 devconf2;
/*
* Set up USB clock/mode in the DEVCONF2 register.
*/
devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
/* USB2.0 PHY reference clock is 13 MHz */
devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
| CONF2_DATPOL;
omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
usb_musb_init(&musb_board_data);
}
static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
#else
.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
#endif
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = true,
.reset_gpio_port[0] = 57,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
/* USB OTG DRVVBUS offset = 0x212 */
OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct resource am3517_hecc_resources[] = {
{
.start = AM35XX_IPSS_HECC_BASE,
.end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
.flags = IORESOURCE_MEM,
},
{
.start = INT_35XX_HECC0_IRQ,
.end = INT_35XX_HECC0_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device am3517_hecc_device = {
.name = "ti_hecc",
.id = -1,
.num_resources = ARRAY_SIZE(am3517_hecc_resources),
.resource = am3517_hecc_resources,
};
static struct ti_hecc_platform_data am3517_evm_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 void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
{
am3517_hecc_device.dev.platform_data = pdata;
platform_device_register(&am3517_hecc_device);
}
static void __init am3517_evm_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
am3517_evm_i2c_init();
platform_add_devices(am3517_evm_devices,
ARRAY_SIZE(am3517_evm_devices));
omap_serial_init();
/* Configure GPIO for EHCI port */
omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
usb_ehci_init(&ehci_pdata);
am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
/* DSS */
am3517_evm_display_init();
/* RTC - S35390A */
am3517_evm_rtc_init();
i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
ARRAY_SIZE(am3517evm_i2c1_boardinfo));
/*Ethernet*/
am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
/* MUSB */
am3517_evm_musb_init();
}
MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
.boot_params = 0x80000100,
.map_io = omap3_map_io,
.reserve = omap_reserve,
.init_irq = am3517_evm_init_irq,
.init_machine = am3517_evm_init,
.timer = &omap_timer,
MACHINE_END
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