- 根目录:
- arch
- arm
- mach-davinci
- board-da850-evm.c
/*
* TI DA850/OMAP-L138 EVM board
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
*
* Derived from: arch/arm/mach-davinci/board-da830-evm.c
* Original Copyrights follow:
*
* 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/init.h>
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/i2c/pca953x.h>
#include <linux/input.h>
#include <linux/mfd/tps6507x.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/input/tps6507x-ts.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/delay.h>
#include <linux/wl12xx.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/system_info.h>
#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <mach/nand.h>
#include <mach/mux.h>
#include <mach/aemif.h>
#include <mach/spi.h>
#define DA850_EVM_PHY_ID "davinci_mdio-0:00"
#define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8)
#define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
#define DA850_WLAN_EN GPIO_TO_PIN(6, 9)
#define DA850_WLAN_IRQ GPIO_TO_PIN(6, 10)
#define DA850_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6)
static struct mtd_partition da850evm_spiflash_part[] = {
[0] = {
.name = "UBL",
.offset = 0,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
[1] = {
.name = "U-Boot",
.offset = MTDPART_OFS_APPEND,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE,
},
[2] = {
.name = "U-Boot-Env",
.offset = MTDPART_OFS_APPEND,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
[3] = {
.name = "Kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M + SZ_512K,
.mask_flags = 0,
},
[4] = {
.name = "Filesystem",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
.mask_flags = 0,
},
[5] = {
.name = "MAC-Address",
.offset = SZ_8M - SZ_64K,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
};
static struct flash_platform_data da850evm_spiflash_data = {
.name = "m25p80",
.parts = da850evm_spiflash_part,
.nr_parts = ARRAY_SIZE(da850evm_spiflash_part),
.type = "m25p64",
};
static struct davinci_spi_config da850evm_spiflash_cfg = {
.io_type = SPI_IO_TYPE_DMA,
.c2tdelay = 8,
.t2cdelay = 8,
};
static struct spi_board_info da850evm_spi_info[] = {
{
.modalias = "m25p80",
.platform_data = &da850evm_spiflash_data,
.controller_data = &da850evm_spiflash_cfg,
.mode = SPI_MODE_0,
.max_speed_hz = 30000000,
.bus_num = 1,
.chip_select = 0,
},
};
#ifdef CONFIG_MTD
static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
{
char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
size_t retlen;
if (!strcmp(mtd->name, "MAC-Address")) {
mtd_read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
if (retlen == ETH_ALEN)
pr_info("Read MAC addr from SPI Flash: %pM\n",
mac_addr);
}
}
static struct mtd_notifier da850evm_spi_notifier = {
.add = da850_evm_m25p80_notify_add,
};
static void da850_evm_setup_mac_addr(void)
{
register_mtd_user(&da850evm_spi_notifier);
}
#else
static void da850_evm_setup_mac_addr(void) { }
#endif
static struct mtd_partition da850_evm_norflash_partition[] = {
{
.name = "bootloaders + env",
.offset = 0,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0,
},
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct physmap_flash_data da850_evm_norflash_data = {
.width = 2,
.parts = da850_evm_norflash_partition,
.nr_parts = ARRAY_SIZE(da850_evm_norflash_partition),
};
static struct resource da850_evm_norflash_resource[] = {
{
.start = DA8XX_AEMIF_CS2_BASE,
.end = DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device da850_evm_norflash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &da850_evm_norflash_data,
},
.num_resources = 1,
.resource = da850_evm_norflash_resource,
};
static struct davinci_pm_config da850_pm_pdata = {
.sleepcount = 128,
};
static struct platform_device da850_pm_device = {
.name = "pm-davinci",
.dev = {
.platform_data = &da850_pm_pdata,
},
.id = -1,
};
/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
* (128K blocks). It may be used instead of the (default) SPI flash
* to boot, using TI's tools to install the secondary boot loader
* (UBL) and U-Boot.
*/
static struct mtd_partition da850_evm_nandflash_partition[] = {
{
.name = "u-boot env",
.offset = 0,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "UBL",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "u-boot",
.offset = MTDPART_OFS_APPEND,
.size = 4 * SZ_128K,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.offset = 0x200000,
.size = SZ_2M,
.mask_flags = 0,
},
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct davinci_aemif_timing da850_evm_nandflash_timing = {
.wsetup = 24,
.wstrobe = 21,
.whold = 14,
.rsetup = 19,
.rstrobe = 50,
.rhold = 0,
.ta = 20,
};
static struct davinci_nand_pdata da850_evm_nandflash_data = {
.parts = da850_evm_nandflash_partition,
.nr_parts = ARRAY_SIZE(da850_evm_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
.ecc_bits = 4,
.bbt_options = NAND_BBT_USE_FLASH,
.timing = &da850_evm_nandflash_timing,
};
static struct resource da850_evm_nandflash_resource[] = {
{
.start = DA8XX_AEMIF_CS3_BASE,
.end = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = DA8XX_AEMIF_CTL_BASE,
.end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device da850_evm_nandflash_device = {
.name = "davinci_nand",
.id = 1,
.dev = {
.platform_data = &da850_evm_nandflash_data,
},
.num_resources = ARRAY_SIZE(da850_evm_nandflash_resource),
.resource = da850_evm_nandflash_resource,
};
static struct platform_device *da850_evm_devices[] __initdata = {
&da850_evm_nandflash_device,
&da850_evm_norflash_device,
};
#define DA8XX_AEMIF_CE2CFG_OFFSET 0x10
#define DA8XX_AEMIF_ASIZE_16BIT 0x1
static void __init da850_evm_init_nor(void)
{
void __iomem *aemif_addr;
aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
/* Configure data bus width of CS2 to 16 bit */
writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
DA8XX_AEMIF_ASIZE_16BIT,
aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);
iounmap(aemif_addr);
}
static const short da850_evm_nand_pins[] = {
DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
DA850_NEMA_WE, DA850_NEMA_OE,
-1
};
static const short da850_evm_nor_pins[] = {
DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
DA850_EMA_A_22, DA850_EMA_A_23,
-1
};
#if defined(CONFIG_MMC_DAVINCI) || \
defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
#else
#define HAS_MMC 0
#endif
static inline void da850_evm_setup_nor_nand(void)
{
int ret = 0;
if (!HAS_MMC) {
ret = davinci_cfg_reg_list(da850_evm_nand_pins);
if (ret)
pr_warning("da850_evm_init: nand mux setup failed: "
"%d\n", ret);
ret = davinci_cfg_reg_list(da850_evm_nor_pins);
if (ret)
pr_warning("da850_evm_init: nor mux setup failed: %d\n",
ret);
da850_evm_init_nor();
platform_add_devices(da850_evm_devices,
ARRAY_SIZE(da850_evm_devices));
}
}
#ifdef CONFIG_DA850_UI_RMII
static inline void da850_evm_setup_emac_rmii(int rmii_sel)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
soc_info->emac_pdata->rmii_en = 1;
gpio_set_value_cansleep(rmii_sel, 0);
}
#else
static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
#endif
#define DA850_KEYS_DEBOUNCE_MS 10
/*
* At 200ms polling interval it is possible to miss an
* event by tapping very lightly on the push button but most
* pushes do result in an event; longer intervals require the
* user to hold the button whereas shorter intervals require
* more CPU time for polling.
*/
#define DA850_GPIO_KEYS_POLL_MS 200
enum da850_evm_ui_exp_pins {
DA850_EVM_UI_EXP_SEL_C = 5,
DA850_EVM_UI_EXP_SEL_B,
DA850_EVM_UI_EXP_SEL_A,
DA850_EVM_UI_EXP_PB8,
DA850_EVM_UI_EXP_PB7,
DA850_EVM_UI_EXP_PB6,
DA850_EVM_UI_EXP_PB5,
DA850_EVM_UI_EXP_PB4,
DA850_EVM_UI_EXP_PB3,
DA850_EVM_UI_EXP_PB2,
DA850_EVM_UI_EXP_PB1,
};
static const char const *da850_evm_ui_exp[] = {
[DA850_EVM_UI_EXP_SEL_C] = "sel_c",
[DA850_EVM_UI_EXP_SEL_B] = "sel_b",
[DA850_EVM_UI_EXP_SEL_A] = "sel_a",
[DA850_EVM_UI_EXP_PB8] = "pb8",
[DA850_EVM_UI_EXP_PB7] = "pb7",
[DA850_EVM_UI_EXP_PB6] = "pb6",
[DA850_EVM_UI_EXP_PB5] = "pb5",
[DA850_EVM_UI_EXP_PB4] = "pb4",
[DA850_EVM_UI_EXP_PB3] = "pb3",
[DA850_EVM_UI_EXP_PB2] = "pb2",
[DA850_EVM_UI_EXP_PB1] = "pb1",
};
#define DA850_N_UI_PB 8
static struct gpio_keys_button da850_evm_ui_keys[] = {
[0 ... DA850_N_UI_PB - 1] = {
.type = EV_KEY,
.active_low = 1,
.wakeup = 0,
.debounce_interval = DA850_KEYS_DEBOUNCE_MS,
.code = -1, /* assigned at runtime */
.gpio = -1, /* assigned at runtime */
.desc = NULL, /* assigned at runtime */
},
};
static struct gpio_keys_platform_data da850_evm_ui_keys_pdata = {
.buttons = da850_evm_ui_keys,
.nbuttons = ARRAY_SIZE(da850_evm_ui_keys),
.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};
static struct platform_device da850_evm_ui_keys_device = {
.name = "gpio-keys-polled",
.id = 0,
.dev = {
.platform_data = &da850_evm_ui_keys_pdata
},
};
static void da850_evm_ui_keys_init(unsigned gpio)
{
int i;
struct gpio_keys_button *button;
for (i = 0; i < DA850_N_UI_PB; i++) {
button = &da850_evm_ui_keys[i];
button->code = KEY_F8 - i;
button->desc = (char *)
da850_evm_ui_exp[DA850_EVM_UI_EXP_PB8 + i];
button->gpio = gpio + DA850_EVM_UI_EXP_PB8 + i;
}
}
static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
unsigned ngpio, void *c)
{
int sel_a, sel_b, sel_c, ret;
sel_a = gpio + DA850_EVM_UI_EXP_SEL_A;
sel_b = gpio + DA850_EVM_UI_EXP_SEL_B;
sel_c = gpio + DA850_EVM_UI_EXP_SEL_C;
ret = gpio_request(sel_a, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_A]);
if (ret) {
pr_warning("Cannot open UI expander pin %d\n", sel_a);
goto exp_setup_sela_fail;
}
ret = gpio_request(sel_b, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_B]);
if (ret) {
pr_warning("Cannot open UI expander pin %d\n", sel_b);
goto exp_setup_selb_fail;
}
ret = gpio_request(sel_c, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_C]);
if (ret) {
pr_warning("Cannot open UI expander pin %d\n", sel_c);
goto exp_setup_selc_fail;
}
/* deselect all functionalities */
gpio_direction_output(sel_a, 1);
gpio_direction_output(sel_b, 1);
gpio_direction_output(sel_c, 1);
da850_evm_ui_keys_init(gpio);
ret = platform_device_register(&da850_evm_ui_keys_device);
if (ret) {
pr_warning("Could not register UI GPIO expander push-buttons");
goto exp_setup_keys_fail;
}
pr_info("DA850/OMAP-L138 EVM UI card detected\n");
da850_evm_setup_nor_nand();
da850_evm_setup_emac_rmii(sel_a);
return 0;
exp_setup_keys_fail:
gpio_free(sel_c);
exp_setup_selc_fail:
gpio_free(sel_b);
exp_setup_selb_fail:
gpio_free(sel_a);
exp_setup_sela_fail:
return ret;
}
static int da850_evm_ui_expander_teardown(struct i2c_client *client,
unsigned gpio, unsigned ngpio, void *c)
{
platform_device_unregister(&da850_evm_ui_keys_device);
/* deselect all functionalities */
gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_C, 1);
gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_B, 1);
gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_A, 1);
gpio_free(gpio + DA850_EVM_UI_EXP_SEL_C);
gpio_free(gpio + DA850_EVM_UI_EXP_SEL_B);
gpio_free(gpio + DA850_EVM_UI_EXP_SEL_A);
return 0;
}
/* assign the baseboard expander's GPIOs after the UI board's */
#define DA850_UI_EXPANDER_N_GPIOS ARRAY_SIZE(da850_evm_ui_exp)
#define DA850_BB_EXPANDER_GPIO_BASE (DAVINCI_N_GPIO + DA850_UI_EXPANDER_N_GPIOS)
enum da850_evm_bb_exp_pins {
DA850_EVM_BB_EXP_DEEP_SLEEP_EN = 0,
DA850_EVM_BB_EXP_SW_RST,
DA850_EVM_BB_EXP_TP_23,
DA850_EVM_BB_EXP_TP_22,
DA850_EVM_BB_EXP_TP_21,
DA850_EVM_BB_EXP_USER_PB1,
DA850_EVM_BB_EXP_USER_LED2,
DA850_EVM_BB_EXP_USER_LED1,
DA850_EVM_BB_EXP_USER_SW1,
DA850_EVM_BB_EXP_USER_SW2,
DA850_EVM_BB_EXP_USER_SW3,
DA850_EVM_BB_EXP_USER_SW4,
DA850_EVM_BB_EXP_USER_SW5,
DA850_EVM_BB_EXP_USER_SW6,
DA850_EVM_BB_EXP_USER_SW7,
DA850_EVM_BB_EXP_USER_SW8
};
static const char const *da850_evm_bb_exp[] = {
[DA850_EVM_BB_EXP_DEEP_SLEEP_EN] = "deep_sleep_en",
[DA850_EVM_BB_EXP_SW_RST] = "sw_rst",
[DA850_EVM_BB_EXP_TP_23] = "tp_23",
[DA850_EVM_BB_EXP_TP_22] = "tp_22",
[DA850_EVM_BB_EXP_TP_21] = "tp_21",
[DA850_EVM_BB_EXP_USER_PB1] = "user_pb1",
[DA850_EVM_BB_EXP_USER_LED2] = "user_led2",
[DA850_EVM_BB_EXP_USER_LED1] = "user_led1",
[DA850_EVM_BB_EXP_USER_SW1] = "user_sw1",
[DA850_EVM_BB_EXP_USER_SW2] = "user_sw2",
[DA850_EVM_BB_EXP_USER_SW3] = "user_sw3",
[DA850_EVM_BB_EXP_USER_SW4] = "user_sw4",
[DA850_EVM_BB_EXP_USER_SW5] = "user_sw5",
[DA850_EVM_BB_EXP_USER_SW6] = "user_sw6",
[DA850_EVM_BB_EXP_USER_SW7] = "user_sw7",
[DA850_EVM_BB_EXP_USER_SW8] = "user_sw8",
};
#define DA850_N_BB_USER_SW 8
static struct gpio_keys_button da850_evm_bb_keys[] = {
[0] = {
.type = EV_KEY,
.active_low = 1,
.wakeup = 0,
.debounce_interval = DA850_KEYS_DEBOUNCE_MS,
.code = KEY_PROG1,
.desc = NULL, /* assigned at runtime */
.gpio = -1, /* assigned at runtime */
},
[1 ... DA850_N_BB_USER_SW] = {
.type = EV_SW,
.active_low = 1,
.wakeup = 0,
.debounce_interval = DA850_KEYS_DEBOUNCE_MS,
.code = -1, /* assigned at runtime */
.desc = NULL, /* assigned at runtime */
.gpio = -1, /* assigned at runtime */
},
};
static struct gpio_keys_platform_data da850_evm_bb_keys_pdata = {
.buttons = da850_evm_bb_keys,
.nbuttons = ARRAY_SIZE(da850_evm_bb_keys),
.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};
static struct platform_device da850_evm_bb_keys_device = {
.name = "gpio-keys-polled",
.id = 1,
.dev = {
.platform_data = &da850_evm_bb_keys_pdata
},
};
static void da850_evm_bb_keys_init(unsigned gpio)
{
int i;
struct gpio_keys_button *button;
button = &da850_evm_bb_keys[0];
button->desc = (char *)
da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_PB1];
button->gpio = gpio + DA850_EVM_BB_EXP_USER_PB1;
for (i = 0; i < DA850_N_BB_USER_SW; i++) {
button = &da850_evm_bb_keys[i + 1];
button->code = SW_LID + i;
button->desc = (char *)
da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_SW1 + i];
button->gpio = gpio + DA850_EVM_BB_EXP_USER_SW1 + i;
}
}
#define DA850_N_BB_USER_LED 2
static struct gpio_led da850_evm_bb_leds[] = {
[0 ... DA850_N_BB_USER_LED - 1] = {
.active_low = 1,
.gpio = -1, /* assigned at runtime */
.name = NULL, /* assigned at runtime */
},
};
static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
.leds = da850_evm_bb_leds,
.num_leds = ARRAY_SIZE(da850_evm_bb_leds),
};
static struct platform_device da850_evm_bb_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &da850_evm_bb_leds_pdata
}
};
static void da850_evm_bb_leds_init(unsigned gpio)
{
int i;
struct gpio_led *led;
for (i = 0; i < DA850_N_BB_USER_LED; i++) {
led = &da850_evm_bb_leds[i];
led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
led->name =
da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
}
}
static int da850_evm_bb_expander_setup(struct i2c_client *client,
unsigned gpio, unsigned ngpio,
void *c)
{
int ret;
/*
* Register the switches and pushbutton on the baseboard as a gpio-keys
* device.
*/
da850_evm_bb_keys_init(gpio);
ret = platform_device_register(&da850_evm_bb_keys_device);
if (ret) {
pr_warning("Could not register baseboard GPIO expander keys");
goto io_exp_setup_sw_fail;
}
da850_evm_bb_leds_init(gpio);
ret = platform_device_register(&da850_evm_bb_leds_device);
if (ret) {
pr_warning("Could not register baseboard GPIO expander LEDS");
goto io_exp_setup_leds_fail;
}
return 0;
io_exp_setup_leds_fail:
platform_device_unregister(&da850_evm_bb_keys_device);
io_exp_setup_sw_fail:
return ret;
}
static int da850_evm_bb_expander_teardown(struct i2c_client *client,
unsigned gpio, unsigned ngpio, void *c)
{
platform_device_unregister(&da850_evm_bb_leds_device);
platform_device_unregister(&da850_evm_bb_keys_device);
return 0;
}
static struct pca953x_platform_data da850_evm_ui_expander_info = {
.gpio_base = DAVINCI_N_GPIO,
.setup = da850_evm_ui_expander_setup,
.teardown = da850_evm_ui_expander_teardown,
.names = da850_evm_ui_exp,
};
static struct pca953x_platform_data da850_evm_bb_expander_info = {
.gpio_base = DA850_BB_EXPANDER_GPIO_BASE,
.setup = da850_evm_bb_expander_setup,
.teardown = da850_evm_bb_expander_teardown,
.names = da850_evm_bb_exp,
};
static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
{
I2C_BOARD_INFO("tlv320aic3x", 0x18),
},
{
I2C_BOARD_INFO("tca6416", 0x20),
.platform_data = &da850_evm_ui_expander_info,
},
{
I2C_BOARD_INFO("tca6416", 0x21),
.platform_data = &da850_evm_bb_expander_info,
},
};
static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
};
static struct davinci_uart_config da850_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE,
RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
};
static struct snd_platform_data da850_evm_snd_data = {
.tx_dma_offset = 0x2000,
.rx_dma_offset = 0x2000,
.op_mode = DAVINCI_MCASP_IIS_MODE,
.num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
.tdm_slots = 2,
.serial_dir = da850_iis_serializer_direction,
.asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 1,
};
static const short da850_evm_mcasp_pins[] __initconst = {
DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
DA850_AXR_11, DA850_AXR_12,
-1
};
static int da850_evm_mmc_get_ro(int index)
{
return gpio_get_value(DA850_MMCSD_WP_PIN);
}
static int da850_evm_mmc_get_cd(int index)
{
return !gpio_get_value(DA850_MMCSD_CD_PIN);
}
static struct davinci_mmc_config da850_mmc_config = {
.get_ro = da850_evm_mmc_get_ro,
.get_cd = da850_evm_mmc_get_cd,
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.version = MMC_CTLR_VERSION_2,
};
static const short da850_evm_mmcsd0_pins[] __initconst = {
DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
DA850_GPIO4_0, DA850_GPIO4_1,
-1
};
static void da850_panel_power_ctrl(int val)
{
/* lcd backlight */
gpio_set_value(DA850_LCD_BL_PIN, val);
/* lcd power */
gpio_set_value(DA850_LCD_PWR_PIN, val);
}
static int da850_lcd_hw_init(void)
{
int status;
status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
if (status < 0)
return status;
status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
if (status < 0) {
gpio_free(DA850_LCD_BL_PIN);
return status;
}
gpio_direction_output(DA850_LCD_BL_PIN, 0);
gpio_direction_output(DA850_LCD_PWR_PIN, 0);
/* Switch off panel power and backlight */
da850_panel_power_ctrl(0);
/* Switch on panel power and backlight */
da850_panel_power_ctrl(1);
return 0;
}
/* TPS65070 voltage regulator support */
/* 3.3V */
static struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
{
.supply = "usb0_vdda33",
},
{
.supply = "usb1_vdda33",
},
};
/* 3.3V or 1.8V */
static struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
{
.supply = "dvdd3318_a",
},
{
.supply = "dvdd3318_b",
},
{
.supply = "dvdd3318_c",
},
};
/* 1.2V */
static struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
{
.supply = "cvdd",
},
};
/* 1.8V LDO */
static struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
{
.supply = "sata_vddr",
},
{
.supply = "usb0_vdda18",
},
{
.supply = "usb1_vdda18",
},
{
.supply = "ddr_dvdd18",
},
};
/* 1.2V LDO */
static struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
{
.supply = "sata_vdd",
},
{
.supply = "pll0_vdda",
},
{
.supply = "pll1_vdda",
},
{
.supply = "usbs_cvdd",
},
{
.supply = "vddarnwa1",
},
};
/* We take advantage of the fact that both defdcdc{2,3} are tied high */
static struct tps6507x_reg_platform_data tps6507x_platform_data = {
.defdcdc_default = true,
};
static struct regulator_init_data tps65070_regulator_data[] = {
/* dcdc1 */
{
.constraints = {
.min_uV = 3150000,
.max_uV = 3450000,
.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS),
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc1_consumers),
.consumer_supplies = tps65070_dcdc1_consumers,
},
/* dcdc2 */
{
.constraints = {
.min_uV = 1710000,
.max_uV = 3450000,
.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS),
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
.consumer_supplies = tps65070_dcdc2_consumers,
.driver_data = &tps6507x_platform_data,
},
/* dcdc3 */
{
.constraints = {
.min_uV = 950000,
.max_uV = 1350000,
.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS),
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
.consumer_supplies = tps65070_dcdc3_consumers,
.driver_data = &tps6507x_platform_data,
},
/* ldo1 */
{
.constraints = {
.min_uV = 1710000,
.max_uV = 1890000,
.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS),
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo1_consumers),
.consumer_supplies = tps65070_ldo1_consumers,
},
/* ldo2 */
{
.constraints = {
.min_uV = 1140000,
.max_uV = 1320000,
.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS),
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo2_consumers),
.consumer_supplies = tps65070_ldo2_consumers,
},
};
static struct touchscreen_init_data tps6507x_touchscreen_data = {
.poll_period = 30, /* ms between touch samples */
.min_pressure = 0x30, /* minimum pressure to trigger touch */
.vref = 0, /* turn off vref when not using A/D */
.vendor = 0, /* /sys/class/input/input?/id/vendor */
.product = 65070, /* /sys/class/input/input?/id/product */
.version = 0x100, /* /sys/class/input/input?/id/version */
};
static struct tps6507x_board tps_board = {
.tps6507x_pmic_init_data = &tps65070_regulator_data[0],
.tps6507x_ts_init_data = &tps6507x_touchscreen_data,
};
static struct i2c_board_info __initdata da850_evm_tps65070_info[] = {
{
I2C_BOARD_INFO("tps6507x", 0x48),
.platform_data = &tps_board,
},
};
static int __init pmic_tps65070_init(void)
{
return i2c_register_board_info(1, da850_evm_tps65070_info,
ARRAY_SIZE(da850_evm_tps65070_info));
}
static const short da850_evm_lcdc_pins[] = {
DA850_GPIO2_8, DA850_GPIO2_15,
-1
};
static const short da850_evm_mii_pins[] = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
DA850_MDIO_D,
-1
};
static const short da850_evm_rmii_pins[] = {
DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
DA850_MDIO_D,
-1
};
static int __init da850_evm_config_emac(void)
{
void __iomem *cfg_chip3_base;
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
u8 rmii_en = soc_info->emac_pdata->rmii_en;
if (!machine_is_davinci_da850_evm())
return 0;
cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
val = __raw_readl(cfg_chip3_base);
if (rmii_en) {
val |= BIT(8);
ret = davinci_cfg_reg_list(da850_evm_rmii_pins);
pr_info("EMAC: RMII PHY configured, MII PHY will not be"
" functional\n");
} else {
val &= ~BIT(8);
ret = davinci_cfg_reg_list(da850_evm_mii_pins);
pr_info("EMAC: MII PHY configured, RMII PHY will not be"
" functional\n");
}
if (ret)
pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
ret);
/* configure the CFGCHIP3 register for RMII or MII */
__raw_writel(val, cfg_chip3_base);
ret = davinci_cfg_reg(DA850_GPIO2_6);
if (ret)
pr_warning("da850_evm_init:GPIO(2,6) mux setup "
"failed\n");
ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
if (ret) {
pr_warning("Cannot open GPIO %d\n",
DA850_MII_MDIO_CLKEN_PIN);
return ret;
}
/* Enable/Disable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;
ret = da8xx_register_emac();
if (ret)
pr_warning("da850_evm_init: emac registration failed: %d\n",
ret);
return 0;
}
device_initcall(da850_evm_config_emac);
/*
* The following EDMA channels/slots are not being used by drivers (for
* example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM, hence
* they are being reserved for codecs on the DSP side.
*/
static const s16 da850_dma0_rsv_chans[][2] = {
/* (offset, number) */
{ 8, 6},
{24, 4},
{30, 2},
{-1, -1}
};
static const s16 da850_dma0_rsv_slots[][2] = {
/* (offset, number) */
{ 8, 6},
{24, 4},
{30, 50},
{-1, -1}
};
static const s16 da850_dma1_rsv_chans[][2] = {
/* (offset, number) */
{ 0, 28},
{30, 2},
{-1, -1}
};
static const s16 da850_dma1_rsv_slots[][2] = {
/* (offset, number) */
{ 0, 28},
{30, 90},
{-1, -1}
};
static struct edma_rsv_info da850_edma_cc0_rsv = {
.rsv_chans = da850_dma0_rsv_chans,
.rsv_slots = da850_dma0_rsv_slots,
};
static struct edma_rsv_info da850_edma_cc1_rsv = {
.rsv_chans = da850_dma1_rsv_chans,
.rsv_slots = da850_dma1_rsv_slots,
};
static struct edma_rsv_info *da850_edma_rsv[2] = {
&da850_edma_cc0_rsv,
&da850_edma_cc1_rsv,
};
#ifdef CONFIG_CPU_FREQ
static __init int da850_evm_init_cpufreq(void)
{
switch (system_rev & 0xF) {
case 3:
da850_max_speed = 456000;
break;
case 2:
da850_max_speed = 408000;
break;
case 1:
da850_max_speed = 372000;
break;
}
return da850_register_cpufreq("pll0_sysclk3");
}
#else
static __init int da850_evm_init_cpufreq(void) { return 0; }
#endif
#ifdef CONFIG_DA850_WL12XX
static void wl12xx_set_power(int index, bool power_on)
{
static bool power_state;
pr_debug("Powering %s wl12xx", power_on ? "on" : "off");
if (power_on == power_state)
return;
power_state = power_on;
if (power_on) {
/* Power up sequence required for wl127x devices */
gpio_set_value(DA850_WLAN_EN, 1);
usleep_range(15000, 15000);
gpio_set_value(DA850_WLAN_EN, 0);
usleep_range(1000, 1000);
gpio_set_value(DA850_WLAN_EN, 1);
msleep(70);
} else {
gpio_set_value(DA850_WLAN_EN, 0);
}
}
static struct davinci_mmc_config da850_wl12xx_mmc_config = {
.set_power = wl12xx_set_power,
.wires = 4,
.max_freq = 25000000,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_NONREMOVABLE |
MMC_CAP_POWER_OFF_CARD,
.version = MMC_CTLR_VERSION_2,
};
static const short da850_wl12xx_pins[] __initconst = {
DA850_MMCSD1_DAT_0, DA850_MMCSD1_DAT_1, DA850_MMCSD1_DAT_2,
DA850_MMCSD1_DAT_3, DA850_MMCSD1_CLK, DA850_MMCSD1_CMD,
DA850_GPIO6_9, DA850_GPIO6_10,
-1
};
static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
.irq = -1,
.board_ref_clock = WL12XX_REFCLOCK_38,
.platform_quirks = WL12XX_PLATFORM_QUIRK_EDGE_IRQ,
};
static __init int da850_wl12xx_init(void)
{
int ret;
ret = davinci_cfg_reg_list(da850_wl12xx_pins);
if (ret) {
pr_err("wl12xx/mmc mux setup failed: %d\n", ret);
goto exit;
}
ret = da850_register_mmcsd1(&da850_wl12xx_mmc_config);
if (ret) {
pr_err("wl12xx/mmc registration failed: %d\n", ret);
goto exit;
}
ret = gpio_request_one(DA850_WLAN_EN, GPIOF_OUT_INIT_LOW, "wl12xx_en");
if (ret) {
pr_err("Could not request wl12xx enable gpio: %d\n", ret);
goto exit;
}
ret = gpio_request_one(DA850_WLAN_IRQ, GPIOF_IN, "wl12xx_irq");
if (ret) {
pr_err("Could not request wl12xx irq gpio: %d\n", ret);
goto free_wlan_en;
}
da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);
ret = wl12xx_set_platform_data(&da850_wl12xx_wlan_data);
if (ret) {
pr_err("Could not set wl12xx data: %d\n", ret);
goto free_wlan_irq;
}
return 0;
free_wlan_irq:
gpio_free(DA850_WLAN_IRQ);
free_wlan_en:
gpio_free(DA850_WLAN_EN);
exit:
return ret;
}
#else /* CONFIG_DA850_WL12XX */
static __init int da850_wl12xx_init(void)
{
return 0;
}
#endif /* CONFIG_DA850_WL12XX */
#define DA850EVM_SATA_REFCLKPN_RATE (100 * 1000 * 1000)
static __init void da850_evm_init(void)
{
int ret;
ret = pmic_tps65070_init();
if (ret)
pr_warning("da850_evm_init: TPS65070 PMIC init failed: %d\n",
ret);
ret = da850_register_edma(da850_edma_rsv);
if (ret)
pr_warning("da850_evm_init: edma registration failed: %d\n",
ret);
ret = davinci_cfg_reg_list(da850_i2c0_pins);
if (ret)
pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
ret);
ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
if (ret)
pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
ret);
ret = da8xx_register_watchdog();
if (ret)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
if (HAS_MMC) {
ret = davinci_cfg_reg_list(da850_evm_mmcsd0_pins);
if (ret)
pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
" %d\n", ret);
ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
if (ret)
pr_warning("da850_evm_init: can not open GPIO %d\n",
DA850_MMCSD_CD_PIN);
gpio_direction_input(DA850_MMCSD_CD_PIN);
ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
if (ret)
pr_warning("da850_evm_init: can not open GPIO %d\n",
DA850_MMCSD_WP_PIN);
gpio_direction_input(DA850_MMCSD_WP_PIN);
ret = da8xx_register_mmcsd0(&da850_mmc_config);
if (ret)
pr_warning("da850_evm_init: mmcsd0 registration failed:"
" %d\n", ret);
ret = da850_wl12xx_init();
if (ret)
pr_warning("da850_evm_init: wl12xx initialization"
" failed: %d\n", ret);
}
davinci_serial_init(&da850_evm_uart_config);
i2c_register_board_info(1, da850_evm_i2c_devices,
ARRAY_SIZE(da850_evm_i2c_devices));
/*
* shut down uart 0 and 1; they are not used on the board and
* accessing them causes endless "too much work in irq53" messages
* with arago fs
*/
__raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
__raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
ret = davinci_cfg_reg_list(da850_evm_mcasp_pins);
if (ret)
pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
ret);
da8xx_register_mcasp(0, &da850_evm_snd_data);
ret = davinci_cfg_reg_list(da850_lcdcntl_pins);
if (ret)
pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
ret);
/* Handle board specific muxing for LCD here */
ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
if (ret)
pr_warning("da850_evm_init: evm specific lcd mux setup "
"failed: %d\n", ret);
ret = da850_lcd_hw_init();
if (ret)
pr_warning("da850_evm_init: lcd initialization failed: %d\n",
ret);
sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
if (ret)
pr_warning("da850_evm_init: lcdc registration failed: %d\n",
ret);
ret = da8xx_register_rtc();
if (ret)
pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);
ret = da850_evm_init_cpufreq();
if (ret)
pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
ret);
ret = da8xx_register_cpuidle();
if (ret)
pr_warning("da850_evm_init: cpuidle registration failed: %d\n",
ret);
ret = da850_register_pm(&da850_pm_device);
if (ret)
pr_warning("da850_evm_init: suspend registration failed: %d\n",
ret);
ret = da8xx_register_spi(1, da850evm_spi_info,
ARRAY_SIZE(da850evm_spi_info));
if (ret)
pr_warning("da850_evm_init: spi 1 registration failed: %d\n",
ret);
ret = da850_register_sata(DA850EVM_SATA_REFCLKPN_RATE);
if (ret)
pr_warning("da850_evm_init: sata registration failed: %d\n",
ret);
da850_evm_setup_mac_addr();
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
if (!machine_is_davinci_da850_evm())
return 0;
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif
static void __init da850_evm_map_io(void)
{
da850_init();
}
MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
.atag_offset = 0x100,
.map_io = da850_evm_map_io,
.init_irq = cp_intc_init,
.timer = &davinci_timer,
.init_machine = da850_evm_init,
.dma_zone_size = SZ_128M,
.restart = da8xx_restart,
MACHINE_END