/*
* TI DA830/OMAP L137 EVM board
*
* Author: Mark A. Greer <mgreer@mvista.com>
* Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
*
* 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/i2c/at24.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/cp_intc.h>
#include <mach/mux.h>
#include <mach/da8xx.h>
#include <mach/asp.h>
#include <mach/usb.h>
#define DA830_EVM_PHY_MASK 0x0
#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
static struct at24_platform_data da830_evm_i2c_eeprom_info = {
.byte_len = SZ_256K / 8,
.page_size = 64,
.flags = AT24_FLAG_ADDR16,
.setup = davinci_get_mac_addr,
.context = (void *)0x7f00,
};
static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
unsigned ngpio, void *context)
{
gpio_request(gpio + 6, "MUX_MODE");
#ifdef CONFIG_DA830_UI_LCD
gpio_direction_output(gpio + 6, 0);
#else /* Must be NAND or NOR */
gpio_direction_output(gpio + 6, 1);
#endif
return 0;
}
static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
unsigned ngpio, void *context)
{
gpio_free(gpio + 6);
return 0;
}
static struct pcf857x_platform_data da830_evm_ui_expander_info = {
.gpio_base = DAVINCI_N_GPIO,
.setup = da830_evm_ui_expander_setup,
.teardown = da830_evm_ui_expander_teardown,
};
static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
{
I2C_BOARD_INFO("24c256", 0x50),
.platform_data = &da830_evm_i2c_eeprom_info,
},
{
I2C_BOARD_INFO("tlv320aic3x", 0x18),
},
{
I2C_BOARD_INFO("pcf8574", 0x3f),
.platform_data = &da830_evm_ui_expander_info,
},
};
static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
};
/*
* USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
*/
#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
static const short da830_evm_usb11_pins[] = {
DA830_GPIO1_15, DA830_GPIO2_4,
-1
};
static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
static int da830_evm_usb_set_power(unsigned port, int on)
{
gpio_set_value(ON_BD_USB_DRV, on);
return 0;
}
static int da830_evm_usb_get_power(unsigned port)
{
return gpio_get_value(ON_BD_USB_DRV);
}
static int da830_evm_usb_get_oci(unsigned port)
{
return !gpio_get_value(ON_BD_USB_OVC);
}
static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
{
int irq = gpio_to_irq(ON_BD_USB_OVC);
int error = 0;
if (handler != NULL) {
da830_evm_usb_ocic_handler = handler;
error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"OHCI over-current indicator", NULL);
if (error)
printk(KERN_ERR "%s: could not request IRQ to watch "
"over-current indicator changes\n", __func__);
} else
free_irq(irq, NULL);
return error;
}
static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
.set_power = da830_evm_usb_set_power,
.get_power = da830_evm_usb_get_power,
.get_oci = da830_evm_usb_get_oci,
.ocic_notify = da830_evm_usb_ocic_notify,
/* TPS2065 switch @ 5V */
.potpgt = (3 + 1) / 2, /* 3 ms max */
};
static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
{
da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
return IRQ_HANDLED;
}
static __init void da830_evm_usb_init(void)
{
u32 cfgchip2;
int ret;
/*
* Set up USB clock/mode in the CFGCHIP2 register.
* FYI: CFGCHIP2 is 0x0000ef00 initially.
*/
cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
/* USB2.0 PHY reference clock is 24 MHz */
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
/*
* Select internal reference clock for USB 2.0 PHY
* and use it as a clock source for USB 1.1 PHY
* (this is the default setting anyway).
*/
cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
__raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
gpio_direction_output(ON_BD_USB_DRV, 0);
ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
return;
}
gpio_direction_input(ON_BD_USB_OVC);
ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
if (ret)
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
}
static struct davinci_uart_config da830_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
static const short da830_evm_mcasp1_pins[] = {
DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
DA830_AXR1_11,
-1
};
static u8 da830_iis_serializer_direction[] = {
RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
};
static struct snd_platform_data da830_evm_snd_data = {
.tx_dma_offset = 0x2000,
.rx_dma_offset = 0x2000,
.op_mode = DAVINCI_MCASP_IIS_MODE,
.num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
.tdm_slots = 2,
.serial_dir = da830_iis_serializer_direction,
.eventq_no = EVENTQ_0,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 1,
};
/*
* GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
*/
static const short da830_evm_mmc_sd_pins[] = {
DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
-1
};
#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
static int da830_evm_mmc_get_ro(int index)
{
return gpio_get_value(DA830_MMCSD_WP_PIN);
}
static struct davinci_mmc_config da830_evm_mmc_config = {
.get_ro = da830_evm_mmc_get_ro,
.wires = 4,
.version = MMC_CTLR_VERSION_2,
};
static inline void da830_evm_init_mmc(void)
{
int ret;
ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
if (ret) {
pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
ret);
return;
}
ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
if (ret) {
pr_warning("da830_evm_init: can not open GPIO %d\n",
DA830_MMCSD_WP_PIN);
return;
}
gpio_direction_input(DA830_MMCSD_WP_PIN);
ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
if (ret) {
pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
ret);
gpio_free(DA830_MMCSD_WP_PIN);
}
}
static __init void da830_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
int ret;
ret = da8xx_register_edma();
if (ret)
pr_warning("da830_evm_init: edma registration failed: %d\n",
ret);
ret = da8xx_pinmux_setup(da830_i2c0_pins);
if (ret)
pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
ret);
ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
if (ret)
pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
ret);
da830_evm_usb_init();
soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
soc_info->emac_pdata->rmii_en = 1;
ret = da8xx_pinmux_setup(da830_cpgmac_pins);
if (ret)
pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
ret);
ret = da8xx_register_emac();
if (ret)
pr_warning("da830_evm_init: emac registration failed: %d\n",
ret);
ret = da8xx_register_watchdog();
if (ret)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
davinci_serial_init(&da830_evm_uart_config);
i2c_register_board_info(1, da830_evm_i2c_devices,
ARRAY_SIZE(da830_evm_i2c_devices));
ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
if (ret)
pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
ret);
da8xx_register_mcasp(1, &da830_evm_snd_data);
da830_evm_init_mmc();
#ifdef CONFIG_DA830_UI_LCD
ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
if (ret)
pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
ret);
ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
if (ret)
pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
#endif
ret = da8xx_register_rtc();
if (ret)
pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da830_evm_console_init(void)
{
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da830_evm_console_init);
#endif
static __init void da830_evm_irq_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
soc_info->intc_irq_prios);
}
static void __init da830_evm_map_io(void)
{
da830_init();
}
MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DA8XX_DDR_BASE + 0x100),
.map_io = da830_evm_map_io,
.init_irq = da830_evm_irq_init,
.timer = &davinci_timer,
.init_machine = da830_evm_init,
MACHINE_END
