155 lines
3.2 KiB
C
155 lines
3.2 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#include <common.h>
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#include <i2c.h>
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#include <dm.h>
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#define I2C_BUS_ID 9
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#define BD71888_CHIP_DEV 0x4b
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#define BD2657_CHIP_DEV 0x6a
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struct udevice *cmd_dev;
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/* addr = 8bit, val = 8bit */
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int common_write(uint8_t pmic_addr, uint8_t addr, uint8_t val)
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{
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uint8_t val_tmp = val;
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int ret;
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ret = i2c_get_chip_for_busnum(I2C_BUS_ID, pmic_addr, 1, &cmd_dev);
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if (ret)
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printf("%s i2c get chip failed\n", __func__);
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ret = dm_i2c_write(cmd_dev, addr, &val_tmp, 1);
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if (ret)
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printf("%s i2c write failed\n", __func__);
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return 0;
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}
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int common_read(uint8_t pmic_addr, uint8_t addr, uint8_t *val)
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{
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int ret;
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ret = i2c_get_chip_for_busnum(I2C_BUS_ID, pmic_addr, 1, &cmd_dev);
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if (ret)
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printf("%s i2c get chip failed\n", __func__);
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ret = dm_i2c_read(cmd_dev, addr, val, 1);
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if (ret < 0) {
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printf("%s: pmic read fault, ret:%d\n", __FUNCTION__, ret);
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}
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return 0;
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}
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static int do_i2c_write_bd71888(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret = 100;
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uint8_t write_address = simple_strtoul(argv[1], NULL, 16);
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uint8_t write_val = simple_strtoul(argv[2], NULL, 16);
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ret = common_write(BD71888_CHIP_DEV,write_address,write_val);
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if (ret < 0) {
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printf("%s: bd71888 pmic write fault, ret:%d\n", __FUNCTION__, ret);
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return ret;
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}
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printf("write_val = 0x%x\n",write_val);
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return 0;
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}
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U_BOOT_CMD(
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bd71888_i2c_write, 3, 1, do_i2c_write_bd71888,
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"test i2c",
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"/N\n"
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"bd71888_i2c_write \n"
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"\n"
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);
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static int do_i2c_read_bd71888(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret = 100;
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uint8_t read_val = 0x33;
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uint8_t read_address = simple_strtoul(argv[1], NULL, 16);
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ret = common_read(BD71888_CHIP_DEV,read_address,&read_val);
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if (ret < 0) {
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printf("%s: bd71888 aml_pmic read fault, ret:%d\n", __FUNCTION__, ret);
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return ret;
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}
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printf("read_val = 0x%x\n",read_val);
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return 0;
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}
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U_BOOT_CMD(
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bd71888_i2c_read, 2, 1, do_i2c_read_bd71888,
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"test i2c",
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"/N\n"
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"bd71888_i2c_read \n"
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"\n"
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);
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static int do_i2c_write_bd2657(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret = 100;
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uint8_t write_address = simple_strtoul(argv[1], NULL, 16);
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uint8_t write_val = simple_strtoul(argv[2], NULL, 16);
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ret = common_write(BD2657_CHIP_DEV,write_address,write_val);
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if (ret < 0) {
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printf("%s: bd71888 pmic write fault, ret:%d\n", __FUNCTION__, ret);
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return ret;
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}
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printf("write_val = 0x%x\n",write_val);
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return 0;
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}
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U_BOOT_CMD(
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bd2657_i2c_write, 3, 1, do_i2c_write_bd2657,
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"test i2c",
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"/N\n"
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"bd2657_i2c_write \n"
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"\n"
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);
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static int do_i2c_read_bd2657(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret = 100;
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uint8_t read_val = 0x33;
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uint8_t read_address = simple_strtoul(argv[1], NULL, 16);
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ret = common_read(BD2657_CHIP_DEV,read_address,&read_val);
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if (ret < 0) {
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printf("%s: bd71888 aml_pmic read fault, ret:%d\n", __FUNCTION__, ret);
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return ret;
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}
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printf("read_val = 0x%x\n",read_val);
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return 0;
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}
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U_BOOT_CMD(
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bd2657_i2c_read, 2, 1, do_i2c_read_bd2657,
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"test i2c",
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"/N\n"
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"bd2657_i2c_read \n"
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"\n"
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);
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