board: ti: dra71x-evm: Add PMIC support

Add the pmic_data for LP873x PMIC which is used to power
up dra71x-evm.

Note: As per the DM[1] DRA71x supports only OP_NOM. So, updating
the efuse registers only to use OPP_NOM irrespective of any
CONFIG_DRA7_<VOLT>_OPP_{NOM,od,high} is defined.

[1] http://www.ti.com/product/DRA718/technicaldocuments

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/arch/arm/include/asm/arch-omap5/clock.h b/arch/arm/include/asm/arch-omap5/clock.h
index 57287ff36c768fede437e0d96d9794b0210568f0..7ea7199f2b74e2dc67b4bf948e50cf312a84764d 100644 (file)
--- a/arch/arm/include/asm/arch-omap5/clock.h
+++ b/arch/arm/include/asm/arch-omap5/clock.h
@@ -324,6 +324,9 @@
 /* Standard offset is 0.5v expressed in uv */
 #define PALMAS_SMPS_BASE_VOLT_UV 500000
 
+/* Offset is 0.73V for LP873x */
+#define LP873X_BUCK_BASE_VOLT_UV               730000
+
 /* TPS659038 */
 #define TPS659038_I2C_SLAVE_ADDR               0x58
 #define TPS659038_REG_ADDR_SMPS12              0x23
@@ -338,6 +341,11 @@
 #define TPS65917_REG_ADDR_SMPS2                0x27
 #define TPS65917_REG_ADDR_SMPS3                0x2F
 
+/* LP873X */
+#define LP873X_I2C_SLAVE_ADDR          0x60
+#define LP873X_REG_ADDR_BUCK0          0x6
+#define LP873X_REG_ADDR_BUCK1          0x7
+#define LP873X_REG_ADDR_LDO1           0xA
 
 /* TPS */
 #define TPS62361_I2C_SLAVE_ADDR                0x60

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index c3d5cda6a1eeee10bce8f3772c14d65dc5a1d545..2034a5e9b85ec183f8ba75d84b90fdba5d36c134 100644 (file)
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -600,6 +600,7 @@ extern struct omap_sys_ctrl_regs const omap5_ctrl;
 extern struct omap_sys_ctrl_regs const dra7xx_ctrl;
 
 extern struct pmic_data tps659038;
+extern struct pmic_data lp8733;
 
 void hw_data_init(void);
 

diff --git a/arch/arm/mach-omap2/omap5/hw_data.c b/arch/arm/mach-omap2/omap5/hw_data.c
index c85c71a87c3d01088fae5ffe7e1fcbfe4cb68ffb..58991d7d0484e9026ab996f463ddecf9b29a56ff 100644 (file)
--- a/arch/arm/mach-omap2/omap5/hw_data.c
+++ b/arch/arm/mach-omap2/omap5/hw_data.c
@@ -336,6 +336,22 @@ struct pmic_data tps659038 = {
        .gpio_en = 0,
 };
 
+/* The LP8732 and LP8733 are software-compatible, use common struct */
+struct pmic_data lp8733 = {
+       .base_offset = LP873X_BUCK_BASE_VOLT_UV,
+       .step = 5000, /* 5 mV represented in uV */
+       /*
+        * Offset codes 0 - 0x13 Invalid.
+        * Offset codes 0x14 0x17 give 10mV steps
+        * Offset codes 0x17 through 0x9D give 5mV steps
+        * So let us start with our operating range from .73V
+        */
+       .start_code = 0x17,
+       .i2c_slave_addr = 0x60,
+       .pmic_bus_init  = gpi2c_init,
+       .pmic_write     = palmas_i2c_write_u8,
+};
+
 struct vcores_data omap5430_volts = {
        .mpu.value[OPP_NOM] = VDD_MPU,
        .mpu.addr = SMPS_REG_ADDR_12_MPU,

diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c
index f2d16a0f5e2535557769c3ad4785abc2e0604697..eaca899df808bcfd281dd5c5840d77b5ffe9f4de 100644 (file)
--- a/board/ti/dra7xx/evm.c
+++ b/board/ti/dra7xx/evm.c
@@ -408,10 +408,60 @@ struct vcores_data dra722_volts = {
        .iva.abb_tx_done_mask = OMAP_ABB_IVA_TXDONE_MASK,
 };
 
+struct vcores_data dra718_volts = {
+       /*
+        * In the case of dra71x GPU MPU and CORE
+        * are all powered up by BUCK0 of LP873X PMIC
+        */
+       .mpu.value[OPP_NOM]     = VDD_MPU_DRA7_NOM,
+       .mpu.efuse.reg[OPP_NOM] = STD_FUSE_OPP_VMIN_MPU_NOM,
+       .mpu.efuse.reg_bits     = DRA752_EFUSE_REGBITS,
+       .mpu.addr       = LP873X_REG_ADDR_BUCK0,
+       .mpu.pmic       = &lp8733,
+       .mpu.abb_tx_done_mask = OMAP_ABB_MPU_TXDONE_MASK,
+
+       .core.value[OPP_NOM]            = VDD_CORE_DRA7_NOM,
+       .core.efuse.reg[OPP_NOM]        = STD_FUSE_OPP_VMIN_CORE_NOM,
+       .core.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+       .core.addr      = LP873X_REG_ADDR_BUCK0,
+       .core.pmic      = &lp8733,
+
+       .gpu.value[OPP_NOM]     = VDD_GPU_DRA7_NOM,
+       .gpu.efuse.reg[OPP_NOM] = STD_FUSE_OPP_VMIN_GPU_NOM,
+       .gpu.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+       .gpu.addr       = LP873X_REG_ADDR_BUCK0,
+       .gpu.pmic       = &lp8733,
+       .gpu.abb_tx_done_mask = OMAP_ABB_GPU_TXDONE_MASK,
+
+       /*
+        * The DSPEVE and IVA rails are grouped on DRA71x-evm
+        * and are powered by BUCK1 of LP873X PMIC
+        */
+       .eve.value[OPP_NOM]     = VDD_EVE_DRA7_NOM,
+       .eve.efuse.reg[OPP_NOM] = STD_FUSE_OPP_VMIN_DSPEVE_NOM,
+       .eve.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+       .eve.addr       = LP873X_REG_ADDR_BUCK1,
+       .eve.pmic       = &lp8733,
+       .eve.abb_tx_done_mask = OMAP_ABB_EVE_TXDONE_MASK,
+
+       .iva.value[OPP_NOM]     = VDD_IVA_DRA7_NOM,
+       .iva.efuse.reg[OPP_NOM] = STD_FUSE_OPP_VMIN_IVA_NOM,
+       .iva.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+       .iva.addr       = LP873X_REG_ADDR_BUCK1,
+       .iva.pmic       = &lp8733,
+       .iva.abb_tx_done_mask = OMAP_ABB_IVA_TXDONE_MASK,
+};
+
 int get_voltrail_opp(int rail_offset)
 {
        int opp;
 
+       /*
+        * DRA71x supports only OPP_NOM.
+        */
+       if (board_is_dra71x_evm())
+               return OPP_NOM;
+
        switch (rail_offset) {
        case VOLT_MPU:
                opp = DRA7_MPU_OPP;
@@ -541,6 +591,8 @@ void vcores_init(void)
                *omap_vcores = &dra752_volts;
        } else if (board_is_dra72x_evm()) {
                *omap_vcores = &dra722_volts;
+       } else if (board_is_dra71x_evm()) {
+               *omap_vcores = &dra718_volts;
        } else {
                /* If EEPROM is not populated */
                if (is_dra72x())