From: Michael Williamson <[email protected]> This patch adds the i2c0 bus and attached devices to the MityDSP-L138 and MityARM-1808 davinci SoM. Included is a TPS65023 voltage regulator needed for power management and a small 24c02 EPROM that contains factory configuration data.
Signed-off-by: Michael Williamson <[email protected]> Signed-off-by: Kevin Hilman <[email protected]> --- arch/arm/mach-davinci/board-mityomapl138.c | 145 ++++++++++++++++++++++++++++ 1 files changed, 145 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index 7146916..84d5aff 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c @@ -13,6 +13,8 @@ #include <linux/console.h> #include <linux/platform_device.h> #include <linux/mtd/partitions.h> +#include <linux/regulator/machine.h> +#include <linux/i2c.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -25,6 +27,141 @@ #define MITYOMAPL138_PHY_MASK 0x08 /* hardcoded for now */ #define MITYOMAPL138_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ +static struct davinci_i2c_platform_data mityomap_i2c_0_pdata = { + .bus_freq = 100, /* kHz */ + .bus_delay = 0, /* usec */ +}; + +/* TPS65023 voltage regulator support */ +/* 1.2V Core */ +struct regulator_consumer_supply tps65023_dcdc1_consumers[] = { + { + .supply = "cvdd", + }, +}; + +/* 1.8V */ +struct regulator_consumer_supply tps65023_dcdc2_consumers[] = { + { + .supply = "usb0_vdda18", + }, + { + .supply = "usb1_vdda18", + }, + { + .supply = "ddr_dvdd18", + }, + { + .supply = "sata_vddr", + }, +}; + +/* 1.2V */ +struct regulator_consumer_supply tps65023_dcdc3_consumers[] = { + { + .supply = "sata_vdd", + }, + { + .supply = "usb_cvdd", + }, + { + .supply = "pll0_vdda", + }, + { + .supply = "pll1_vdda", + }, +}; + +/* 1.8V Aux LDO, not used */ +struct regulator_consumer_supply tps65023_ldo1_consumers[] = { + { + .supply = "1.8v_aux", + }, +}; + +/* FPGA VCC Aux (2.5 or 3.3) LDO */ +struct regulator_consumer_supply tps65023_ldo2_consumers[] = { + { + .supply = "vccaux", + }, +}; + +struct regulator_init_data tps65023_regulator_data[] = { + /* dcdc1 */ + { + .constraints = { + .min_uV = 1150000, + .max_uV = 1350000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc1_consumers), + .consumer_supplies = tps65023_dcdc1_consumers, + }, + /* dcdc2 */ + { + .constraints = { + .min_uV = 1800000, + .max_uV = 1800000, + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc2_consumers), + .consumer_supplies = tps65023_dcdc2_consumers, + }, + /* dcdc3 */ + { + .constraints = { + .min_uV = 1200000, + .max_uV = 1200000, + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc3_consumers), + .consumer_supplies = tps65023_dcdc3_consumers, + }, + /* ldo1 */ + { + .constraints = { + .min_uV = 1800000, + .max_uV = 1800000, + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo1_consumers), + .consumer_supplies = tps65023_ldo1_consumers, + }, + /* ldo2 */ + { + .constraints = { + .min_uV = 2500000, + .max_uV = 3300000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo2_consumers), + .consumer_supplies = tps65023_ldo2_consumers, + }, +}; + +static struct i2c_board_info __initdata mityomap_tps65023_info[] = { + { + I2C_BOARD_INFO("tps65023", 0x48), + .platform_data = &tps65023_regulator_data[0], + }, + { + I2C_BOARD_INFO("24c02", 0x50), + }, +}; + +static int __init pmic_tps65023_init(void) +{ + return i2c_register_board_info(1, mityomap_tps65023_info, + ARRAY_SIZE(mityomap_tps65023_info)); +} + /* * MityDSP-L138 includes a 256 MByte large-page NAND flash * (128K blocks). @@ -172,6 +309,14 @@ static void __init mityomapl138_init(void) davinci_serial_init(&mityomapl138_uart_config); + ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata); + if (ret) + pr_warning("i2c0 registration failed: %d\n", ret); + + ret = pmic_tps65023_init(); + if (ret) + pr_warning("TPS65023 PMIC init failed: %d\n", ret); + mityomapl138_setup_nand(); mityomapl138_config_emac(); -- 1.7.2.1 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
