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OpenCloudOS-Kernel/arch/arm/mach-davinci/board-da850-evm.c

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/*
* 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/gpio.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 <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>
#define DA850_EVM_PHY_MASK 0x1
#define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
#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 = "NOR filesystem",
.offset = 0,
.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,
};
/* 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.
*/
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_nand_pdata da850_evm_nandflash_data = {
.parts = da850_evm_nandflash_partition,
.nr_parts = ARRAY_SIZE(da850_evm_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
.options = NAND_USE_FLASH_BBT,
};
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 u32 ui_card_detected;
static void da850_evm_setup_nor_nand(void);
static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
unsigned ngpio, void *c)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
int sel_a, sel_b, sel_c, ret;
sel_a = gpio + 7;
sel_b = gpio + 6;
sel_c = gpio + 5;
ret = gpio_request(sel_a, "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, "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, "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);
ui_card_detected = 1;
pr_info("DA850/OMAP-L138 EVM UI card detected\n");
da850_evm_setup_nor_nand();
if (soc_info->emac_pdata->rmii_en)
/* enable RMII */
gpio_set_value(sel_a, 0);
return 0;
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)
{
/* deselect all functionalities */
gpio_set_value(gpio + 5, 1);
gpio_set_value(gpio + 6, 1);
gpio_set_value(gpio + 7, 1);
gpio_free(gpio + 5);
gpio_free(gpio + 6);
gpio_free(gpio + 7);
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,
};
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,
},
};
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,
};
static struct platform_device *da850_evm_devices[] __initdata = {
&da850_evm_nandflash_device,
&da850_evm_norflash_device,
};
/* 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,
.eventq_no = 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,
.version = MMC_CTLR_VERSION_2,
};
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);
/* disable lcd backlight */
gpio_set_value(DA850_LCD_BL_PIN, 0);
/* disable lcd power */
gpio_set_value(DA850_LCD_PWR_PIN, 0);
/* enable lcd power */
gpio_set_value(DA850_LCD_PWR_PIN, 1);
/* enable lcd backlight */
gpio_set_value(DA850_LCD_BL_PIN, 1);
return 0;
}
#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);
}
/* TPS65070 voltage regulator support */
/* 3.3V */
struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
{
.supply = "usb0_vdda33",
},
{
.supply = "usb1_vdda33",
},
};
/* 3.3V or 1.8V */
struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
{
.supply = "dvdd3318_a",
},
{
.supply = "dvdd3318_b",
},
{
.supply = "dvdd3318_c",
},
};
/* 1.2V */
struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
{
.supply = "cvdd",
},
};
/* 1.8V LDO */
struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
{
.supply = "sata_vddr",
},
{
.supply = "usb0_vdda18",
},
{
.supply = "usb1_vdda18",
},
{
.supply = "ddr_dvdd18",
},
};
/* 1.2V LDO */
struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
{
.supply = "sata_vdd",
},
{
.supply = "pll0_vdda",
},
{
.supply = "pll1_vdda",
},
{
.supply = "usbs_cvdd",
},
{
.supply = "vddarnwa1",
},
};
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,
},
/* dcdc3 */
{
.constraints = {
.min_uV = 950000,
.max_uV = 1320000,
.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,
},
/* 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 i2c_board_info __initdata da850evm_tps65070_info[] = {
{
I2C_BOARD_INFO("tps6507x", 0x48),
.platform_data = &tps65070_regulator_data[0],
},
};
static int __init pmic_tps65070_init(void)
{
return i2c_register_board_info(1, da850evm_tps65070_info,
ARRAY_SIZE(da850evm_tps65070_info));
}
#if defined(CONFIG_MMC_DAVINCI) || \
defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
#else
#define HAS_MMC 0
#endif
static void da850_evm_setup_nor_nand(void)
{
int ret = 0;
if (ui_card_detected & !HAS_MMC) {
ret = da8xx_pinmux_setup(da850_nand_pins);
if (ret)
pr_warning("da850_evm_init: nand mux setup failed: "
"%d\n", ret);
ret = da8xx_pinmux_setup(da850_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));
}
}
static const short da850_evm_lcdc_pins[] = {
DA850_GPIO2_8, DA850_GPIO2_15,
-1
};
static int __init da850_evm_config_emac(u8 rmii_en)
{
void __iomem *cfg_chip3_base;
int ret;
u32 val;
cfg_chip3_base = DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG);
/* configure the CFGCHIP3 register for RMII or MII */
val = __raw_readl(cfg_chip3_base);
if (rmii_en)
val |= BIT(8);
else
val &= ~BIT(8);
__raw_writel(val, cfg_chip3_base);
if (!rmii_en)
ret = da8xx_pinmux_setup(da850_cpgmac_pins);
else
ret = da8xx_pinmux_setup(da850_rmii_pins);
if (ret)
pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
ret);
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;
}
if (rmii_en) {
/* Disable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, 1);
pr_info("EMAC: RMII PHY configured, MII PHY will not be"
" functional\n");
} else {
/* Enable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, 0);
pr_info("EMAC: MII PHY configured, RMII PHY will not be"
" functional\n");
}
return 0;
}
static __init void da850_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
int ret;
ret = pmic_tps65070_init();
if (ret)
pr_warning("da850_evm_init: TPS65070 PMIC init failed: %d\n",
ret);
ret = da8xx_register_edma();
if (ret)
pr_warning("da850_evm_init: edma registration failed: %d\n",
ret);
ret = da8xx_pinmux_setup(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);
soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
#ifdef CONFIG_DA850_UI_RMII
soc_info->emac_pdata->rmii_en = 1;
#else
soc_info->emac_pdata->rmii_en = 0;
#endif
ret = da850_evm_config_emac(soc_info->emac_pdata->rmii_en);
if (ret)
pr_warning("da850_evm_init: emac setup failed: %d\n", ret);
ret = da8xx_register_emac();
if (ret)
pr_warning("da850_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);
if (HAS_MMC) {
ret = da8xx_pinmux_setup(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 = da8xx_pinmux_setup(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 = da8xx_pinmux_setup(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 = da8xx_pinmux_setup(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);
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_register_cpufreq();
if (ret)
pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif
static __init void da850_evm_irq_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
soc_info->intc_irq_prios);
}
static void __init da850_evm_map_io(void)
{
da850_init();
}
MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DA8XX_DDR_BASE + 0x100),
.map_io = da850_evm_map_io,
.init_irq = da850_evm_irq_init,
.timer = &davinci_timer,
.init_machine = da850_evm_init,
MACHINE_END
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