linux/arch/arm/mach-davinci/board-da850-evm.c
Sekhar Nori 28bd2c3411 davinci: am18x/da850/omap-l138 evm: add support for higher speed grades
Apart from the regular AM18x/DA850/OMAP-L138 SoC operating
at 300MHz, these SoCs have variants that can operate at a
maximum of 456MHz. Variants at 408Mhz and 375 Mhz are available
as well.

Not all silicon is qualified to run at higher speeds and
unfortunately the maximum speed the chip can support can only
be determined from the label on the package (not software
readable).

The EVM hardware for all these variants is the same (except
for the actual SoC populated).

U-Boot on the EVM sets up ATAG_REVISION to inform the OS
regarding the speed grade supported by the silicon. We use
this information to pass on the speed grade information to
the SoC code.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-12-22 11:45:29 -08:00

1181 lines
29 KiB
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 <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <mach/nand.h>
#include <mach/mux.h>
#include <mach/aemif.h>
#define DA850_EVM_PHY_ID "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_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6)
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,
.options = NAND_USE_FLASH_BBT,
.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
};
static u32 ui_card_detected;
#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 (ui_card_detected & !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;
}
ui_card_detected = 1;
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_1,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 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 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
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_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);
}
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_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);
}
#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")
.boot_params = (DA8XX_DDR_BASE + 0x100),
.map_io = da850_evm_map_io,
.init_irq = cp_intc_init,
.timer = &davinci_timer,
.init_machine = da850_evm_init,
MACHINE_END