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 57287ff..7ea7199 100644
--- 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 c3d5cda..2034a5e 100644
--- 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 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 c85c71a..58991d7 100644
--- a/arch/arm/mach-omap2/omap5/hw_data.c
+++ b/arch/arm/mach-omap2/omap5/hw_data.c
@@ -336,6 +336,22 @@
.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,