nrhw20: set da9063 current limits
- factor out da9063 function from board.c
This commit is contained in:
Rene Straub
parent
26da1f4009
commit
9a753c5ebc
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@ -36,6 +36,7 @@
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#include "../common/bdparser.h"
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#include "../common/board_descriptor.h"
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#include "board.h"
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#include "da9063.h"
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#include "shield.h"
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#include "shield_can.h"
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#include "shield_comio.h"
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@ -154,6 +155,16 @@ static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
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static BD_Context bdctx[3]; /* The descriptor contexts */
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static void init_i2c(void)
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{
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i2c_set_bus_num(0);
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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i2c_set_bus_num(2);
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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i2c_set_bus_num(0);
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}
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static int _bd_init(void)
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{
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int old_bus;
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@ -183,7 +194,6 @@ static int _bd_init(void)
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return 0;
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}
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static void init_indicator_leds(void)
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{
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int old_bus;
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@ -294,7 +304,22 @@ void am33xx_spl_board_init(void)
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/* Set CORE Frequencies to OPP100 (600MHz) */
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do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
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/* TODO: Modify PMIC settings if required */
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/* Configure both I2C buses used in NRHW20 */
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init_i2c();
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/* Configure default PMIC current limits. Will be overridden in Linux.
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* MEM = 1.5A (0.55A)
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* IO = 1.5A (0.5A)
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* PERI = 2.0A (1.0A)
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* PRO = 0.5A (unused)
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* CORE2 = 2.0A (0.55A)
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* CORE1 = 2.0A (0.25A, seems too low)
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*/
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da9063_init(CONFIG_PMIC_I2C_BUS);
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da9063_set_reg(PMIC_REG_BUCK_ILIM_A, 0x00);
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da9063_set_reg(PMIC_REG_BUCK_ILIM_B, 0x50);
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da9063_set_reg(PMIC_REG_BUCK_ILIM_C, 0xFF);
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init_indicator_leds();
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set_indicator(0, 1, 1); /* Orange */
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@ -397,92 +422,6 @@ err_free_gpio:
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#endif
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/* TODO: Create DA9063 Accessor Module */
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#define CONFIG_PMIC_I2C_BUS 0
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#define CONFIG_PMIC_I2C_ADDR 0x58 /* Pages 0 and 1, Pages 2 and 3 -> 0x59 */
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#define PMIC_REG_STATUS_A 0x01 /* Status of ON_KEY, WAKE, COMP1V2, DVC */
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#define PMIC_REG_GPIO_MODE0_7 0x1D /* Control register for GPIOs 0..7 */
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#define PMIC_REG_GPIO_MODE8_15 0x1E /* Control register for GPIOs 8..15 */
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#define PMIC_REG_BBAT_CONT 0xC5 /* Control register for backup battery */
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static int da9063_i2c_bus = 0;
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void da9063_init(int i2c_bus)
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{
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da9063_i2c_bus = i2c_bus;
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}
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int da9093_get_reg(int reg, u8* val)
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{
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int ret;
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int old_bus;
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u8 temp;
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/* TODO: Check whether switching is required */
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old_bus = i2c_get_bus_num();
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i2c_set_bus_num(da9063_i2c_bus);
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/* TODO: Use CONFIG_PMIC_I2C_ADDR+1 if reg > 0xFF */
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*val = 0;
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ret = i2c_read(CONFIG_PMIC_I2C_ADDR, reg, 1, &temp, 1);
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if (ret == 0)
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*val = temp;
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i2c_set_bus_num(old_bus);
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return ret;
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}
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int da9093_set_reg(int reg, u8 val)
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{
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int ret;
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int old_bus;
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/* TODO: Check whether switching is required */
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old_bus = i2c_get_bus_num();
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i2c_set_bus_num(da9063_i2c_bus);
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/* TODO: Use CONFIG_PMIC_I2C_ADDR+1 if reg > 0xFF */
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ret = i2c_write(CONFIG_PMIC_I2C_ADDR, reg, 1, &val, 1);
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if (ret != 0)
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puts("da9063 write error\n");
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i2c_set_bus_num(old_bus);
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return ret;
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}
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void da9063_set_gpio(unsigned bit, int state)
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{
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int pmic_reg;
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int ret;
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u8 bitmask;
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u8 reg = 0x00;
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if (bit <= 7) {
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pmic_reg = PMIC_REG_GPIO_MODE0_7;
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bitmask = 1U << (bit-0);
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}
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else {
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pmic_reg = PMIC_REG_GPIO_MODE8_15;
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bitmask = 1U << (bit-8);
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}
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/* printf("da9063_set_gpio %d 0x%04x\n", pmic_reg, bitmask); */
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ret = da9093_get_reg(pmic_reg, ®);
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if (ret == 0) {
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if (state) reg |= bitmask;
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else reg &= ~bitmask;
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(void)da9093_set_reg(pmic_reg, reg);
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}
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}
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static void set_status_led(int red, int green)
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{
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/* LED outputs are active low, invert state */
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@ -580,19 +519,14 @@ int board_init(void)
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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/* Configure both I2C buses used in NRHW20 */
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i2c_set_bus_num(0);
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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i2c_set_bus_num(2);
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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i2c_set_bus_num(0);
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init_i2c();
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da9063_init(CONFIG_PMIC_I2C_BUS);
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/* Let user know we're starting */
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init_indicator_leds();
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set_status_led(1, 1); /* Orange */
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set_indicator(0, 0, 1); /* Green */
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set_indicator(1, 0, 1); /* Green */
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/* set_indicator(0, 0, 1); *//* Green */
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/* Initialize pins */
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_WLAN_EN);
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@ -606,7 +540,7 @@ int board_init(void)
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init_gsm();
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/* Enable charging of RTC backup capacitor (1mA, 3.1V) */
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(void)da9093_set_reg(PMIC_REG_BBAT_CONT, 0xCF);
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(void)da9063_set_reg(PMIC_REG_BBAT_CONT, 0xCF);
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printf("OSC: %lu MHz\n", get_osclk()/1000000);
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@ -797,7 +731,7 @@ static bool get_button_state(void)
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{
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u8 state = 0x00;
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(void)da9093_get_reg(PMIC_REG_STATUS_A, &state);
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(void)da9063_get_reg(PMIC_REG_STATUS_A, &state);
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return (state & 0x01) == 0x01;
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}
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@ -0,0 +1,92 @@
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/*
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* da9063.c
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*
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* Dialog DA9063 PMIC
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*
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* Copyright (C) 2018 NetModule AG - http://www.netmodule.com/
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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#include <i2c.h>
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#include "da9063.h"
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static int da9063_i2c_bus = 0;
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void da9063_init(int i2c_bus)
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{
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da9063_i2c_bus = i2c_bus;
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}
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int da9063_get_reg(int reg, u8* val)
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{
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int ret;
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int old_bus;
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u8 temp;
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/* TODO: Check whether switching is required */
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old_bus = i2c_get_bus_num();
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i2c_set_bus_num(da9063_i2c_bus);
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/* TODO: Use CONFIG_PMIC_I2C_ADDR+1 if reg > 0xFF */
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*val = 0;
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ret = i2c_read(CONFIG_PMIC_I2C_ADDR, reg, 1, &temp, 1);
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if (ret == 0)
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*val = temp;
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i2c_set_bus_num(old_bus);
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return ret;
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}
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int da9063_set_reg(int reg, u8 val)
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{
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int ret;
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int old_bus;
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/* TODO: Check whether switching is required */
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old_bus = i2c_get_bus_num();
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i2c_set_bus_num(da9063_i2c_bus);
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/* TODO: Use CONFIG_PMIC_I2C_ADDR+1 if reg > 0xFF */
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ret = i2c_write(CONFIG_PMIC_I2C_ADDR, reg, 1, &val, 1);
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if (ret != 0)
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puts("da9063 write error\n");
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i2c_set_bus_num(old_bus);
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return ret;
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}
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void da9063_set_gpio(unsigned bit, int state)
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{
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int pmic_reg;
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int ret;
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u8 bitmask;
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u8 reg = 0x00;
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if (bit <= 7) {
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pmic_reg = PMIC_REG_GPIO_MODE0_7;
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bitmask = 1U << (bit-0);
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}
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else {
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pmic_reg = PMIC_REG_GPIO_MODE8_15;
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bitmask = 1U << (bit-8);
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}
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/* printf("da9063_set_gpio %d 0x%04x\n", pmic_reg, bitmask); */
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ret = da9063_get_reg(pmic_reg, ®);
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if (ret == 0) {
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if (state) reg |= bitmask;
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else reg &= ~bitmask;
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(void)da9063_set_reg(pmic_reg, reg);
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}
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}
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@ -0,0 +1,36 @@
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/*
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* da9063.c
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*
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* Dialog DA9063 PMIC
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*
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* Copyright (C) 2018 NetModule AG - http://www.netmodule.com/
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef DA9063_H
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#define DA9063_H
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#define CONFIG_PMIC_I2C_BUS 0
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#define CONFIG_PMIC_I2C_ADDR 0x58 /* Pages 0 and 1, Pages 2 and 3 -> 0x59 */
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#define PMIC_REG_STATUS_A 0x01 /* Status of ON_KEY, WAKE, COMP1V2, DVC */
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#define PMIC_REG_GPIO_MODE0_7 0x1D /* Control register for GPIOs 0..7 */
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#define PMIC_REG_GPIO_MODE8_15 0x1E /* Control register for GPIOs 8..15 */
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#define PMIC_REG_BBAT_CONT 0xC5 /* Control register for backup battery */
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#define PMIC_REG_BUCK_ILIM_A 0x9A
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#define PMIC_REG_BUCK_ILIM_B 0x9B
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#define PMIC_REG_BUCK_ILIM_C 0x9C
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extern void da9063_init(int i2c_bus);
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extern int da9063_get_reg(int reg, u8* val);
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extern int da9063_set_reg(int reg, u8 val);
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extern void da9063_set_gpio(unsigned bit, int state);
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#endif /* DA9063_H */
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