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Commit a9eb1f67 authored by Sekhar Nori's avatar Sekhar Nori Committed by Kevin Hilman
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davinci: DA850/OMAP-L138 EVM: add support for TPS65070 PMIC 



This patch adds support for using the TPS65070 PMIC found
on the DA850/OMAP-L138 EVM.

It defines the power rail consumer mapping and registers the
the I2C based PMIC as a board device.

The power rail constraints are derived from the maxmimum and
minimum recommended operating condition values of the respective
consumers derived from section 5.2 of the OMAP-L138 datasheet.

Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent 09dc2d45

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

+153 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#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>
@@ -251,6 +252,153 @@ static void __init da850_evm_init_nor(void) 
	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_MTD_PHYSMAP) || \

    defined(CONFIG_MTD_PHYSMAP_MODULE)

#define HAS_NOR 1
@@ -275,6 +423,11 @@ 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_pinmux_setup(da850_nand_pins);

	if (ret)

		pr_warning("da850_evm_init: nand mux setup failed: %d\n",