mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 15:14:43 +00:00
gpio: Drop sx151x driver
This driver is not used in U-Boot. Drop it and its associated CONFIG options. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Simon Glass
Tom Rini
parent
00805d7ad8
commit
1c27a4c949
4 changed files with 0 additions and 263 deletions
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@ -45,7 +45,6 @@ obj-$(CONFIG_BCM2835_GPIO) += bcm2835_gpio.o
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obj-$(CONFIG_XILINX_GPIO) += xilinx_gpio.o
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obj-$(CONFIG_ADI_GPIO2) += adi_gpio2.o
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obj-$(CONFIG_TCA642X) += tca642x.o
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oby-$(CONFIG_SX151X) += sx151x.o
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obj-$(CONFIG_SUNXI_GPIO) += sunxi_gpio.o
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obj-$(CONFIG_LPC32XX_GPIO) += lpc32xx_gpio.o
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obj-$(CONFIG_STM32_GPIO) += stm32_gpio.o
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@ -1,242 +0,0 @@
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/*
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* (C) Copyright 2013
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* Viktar Palstsiuk, Promwad, viktar.palstsiuk@promwad.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Driver for Semtech SX151x SPI GPIO Expanders
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*/
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#include <common.h>
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#include <spi.h>
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#include <sx151x.h>
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#ifndef CONFIG_SX151X_SPI_BUS
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#define CONFIG_SX151X_SPI_BUS 0
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#endif
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/*
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* The SX151x registers
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*/
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#ifdef CONFIG_SX151X_GPIO_COUNT_8
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/* 8bit: SX1511 */
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#define SX151X_REG_DIR 0x07
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#define SX151X_REG_DATA 0x08
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#else
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/* 16bit: SX1512 */
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#define SX151X_REG_DIR 0x0F
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#define SX151X_REG_DATA 0x11
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#endif
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#define SX151X_REG_RESET 0x7D
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static int sx151x_spi_write(int chip, unsigned char reg, unsigned char val)
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{
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struct spi_slave *slave;
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unsigned char buf[2];
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int ret;
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slave = spi_setup_slave(CONFIG_SX151X_SPI_BUS, chip, 1000000,
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SPI_MODE_0);
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if (!slave)
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return 0;
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spi_claim_bus(slave);
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buf[0] = reg;
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buf[1] = val;
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ret = spi_xfer(slave, 16, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END);
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if (ret < 0)
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printf("spi%d.%d write fail: can't write %02x to %02x: %d\n",
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CONFIG_SX151X_SPI_BUS, chip, val, reg, ret);
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else
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printf("spi%d.%d write 0x%02x to register 0x%02x\n",
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CONFIG_SX151X_SPI_BUS, chip, val, reg);
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spi_release_bus(slave);
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spi_free_slave(slave);
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return ret;
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}
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static int sx151x_spi_read(int chip, unsigned char reg)
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{
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struct spi_slave *slave;
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int ret;
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slave = spi_setup_slave(CONFIG_SX151X_SPI_BUS, chip, 1000000,
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SPI_MODE_0);
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if (!slave)
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return 0;
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spi_claim_bus(slave);
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ret = spi_w8r8(slave, reg | 0x80);
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if (ret < 0)
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printf("spi%d.%d read fail: can't read %02x: %d\n",
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CONFIG_SX151X_SPI_BUS, chip, reg, ret);
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else
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printf("spi%d.%d read register 0x%02x: 0x%02x\n",
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CONFIG_SX151X_SPI_BUS, chip, reg, ret);
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spi_release_bus(slave);
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spi_free_slave(slave);
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return ret;
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}
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static inline void sx151x_find_cfg(int gpio, unsigned char *reg, unsigned char *mask)
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{
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*reg -= gpio / 8;
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*mask = 1 << (gpio % 8);
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}
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static int sx151x_write_cfg(int chip, unsigned char gpio, unsigned char reg, int val)
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{
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unsigned char mask;
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unsigned char data;
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int ret;
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sx151x_find_cfg(gpio, ®, &mask);
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ret = sx151x_spi_read(chip, reg);
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if (ret < 0)
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return ret;
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else
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data = ret;
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data &= ~mask;
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data |= (val << (gpio % 8)) & mask;
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return sx151x_spi_write(chip, reg, data);
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}
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int sx151x_get_value(int chip, int gpio)
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{
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unsigned char reg = SX151X_REG_DATA;
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unsigned char mask;
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int ret;
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sx151x_find_cfg(gpio, ®, &mask);
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ret = sx151x_spi_read(chip, reg);
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if (ret >= 0)
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ret = (ret & mask) != 0 ? 1 : 0;
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return ret;
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}
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int sx151x_set_value(int chip, int gpio, int val)
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{
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return sx151x_write_cfg(chip, gpio, SX151X_REG_DATA, (val ? 1 : 0));
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}
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int sx151x_direction_input(int chip, int gpio)
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{
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return sx151x_write_cfg(chip, gpio, SX151X_REG_DIR, 1);
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}
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int sx151x_direction_output(int chip, int gpio)
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{
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return sx151x_write_cfg(chip, gpio, SX151X_REG_DIR, 0);
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}
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int sx151x_reset(int chip)
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{
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int err;
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err = sx151x_spi_write(chip, SX151X_REG_RESET, 0x12);
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if (err < 0)
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return err;
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err = sx151x_spi_write(chip, SX151X_REG_RESET, 0x34);
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return err;
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}
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#ifdef CONFIG_CMD_SX151X
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int do_sx151x(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret = CMD_RET_USAGE, chip = 0, gpio = 0, val = 0;
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if (argc < 3)
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return CMD_RET_USAGE;
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/* arg2 used as chip number */
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chip = simple_strtoul(argv[2], NULL, 10);
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if (strcmp(argv[1], "reset") == 0) {
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ret = sx151x_reset(chip);
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if (!ret) {
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printf("Device at spi%d.%d was reset\n",
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CONFIG_SX151X_SPI_BUS, chip);
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}
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return ret;
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}
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if (argc < 4)
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return CMD_RET_USAGE;
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/* arg3 used as gpio number */
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gpio = simple_strtoul(argv[3], NULL, 10);
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if (strcmp(argv[1], "get") == 0) {
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ret = sx151x_get_value(chip, gpio);
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if (ret < 0)
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printf("Failed to get value at spi%d.%d gpio %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio);
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else {
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printf("Value at spi%d.%d gpio %d is %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio, ret);
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ret = 0;
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}
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return ret;
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}
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if (argc < 5)
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return CMD_RET_USAGE;
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/* arg4 used as value or direction */
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val = simple_strtoul(argv[4], NULL, 10);
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if (strcmp(argv[1], "set") == 0) {
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ret = sx151x_set_value(chip, gpio, val);
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if (ret < 0)
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printf("Failed to set value at spi%d.%d gpio %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio);
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else
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printf("New value at spi%d.%d gpio %d is %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio, val);
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return ret;
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} else if (strcmp(argv[1], "dir") == 0) {
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if (val == 0)
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ret = sx151x_direction_output(chip, gpio);
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else
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ret = sx151x_direction_input(chip, gpio);
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if (ret < 0)
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printf("Failed to set direction of spi%d.%d gpio %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio);
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else
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printf("New direction of spi%d.%d gpio %d is %d\n",
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CONFIG_SX151X_SPI_BUS, chip, gpio, val);
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return ret;
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}
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printf("Please see usage\n");
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return ret;
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}
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U_BOOT_CMD(
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sx151x, 5, 1, do_sx151x,
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"sx151x gpio access",
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"dir chip gpio 0|1\n"
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" - set gpio direction (0 for output, 1 for input)\n"
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"sx151x get chip gpio\n"
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" - get gpio value\n"
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"sx151x set chip gpio 0|1\n"
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" - set gpio value\n"
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"sx151x reset chip\n"
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" - reset chip"
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);
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#endif /* CONFIG_CMD_SX151X */
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@ -1,17 +0,0 @@
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/*
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* (C) Copyright 2013
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* Viktar Palstsiuk, Promwad, viktar.palstsiuk@promwad.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __SX151X_H_
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#define __SX151X_H_
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int sx151x_get_value(int chip, int gpio);
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int sx151x_set_value(int chip, int gpio, int val);
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int sx151x_direction_input(int chip, int gpio);
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int sx151x_direction_output(int chip, int gpio);
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int sx151x_reset(int chip);
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#endif /* __SX151X_H_ */
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@ -293,7 +293,6 @@ CONFIG_CM922T_XA10
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CONFIG_CMDLINE_EDITING
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CONFIG_CMDLINE_PS_SUPPORT
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CONFIG_CMDLINE_TAG
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CONFIG_CMD_SX151X
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CONFIG_CMD_TCA642X
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CONFIG_CMD_TERMINAL
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CONFIG_CMD_TFTP
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@ -2335,8 +2334,6 @@ CONFIG_SUPPORT_EMMC_RPMB
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CONFIG_SUPPORT_RAW_INITRD
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CONFIG_SUPPORT_VFAT
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CONFIG_SUVD3
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CONFIG_SX151X_GPIO_COUNT_8
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CONFIG_SX151X_SPI_BUS
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CONFIG_SXNI855T
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CONFIG_SYSCOUNTER_TIMER
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CONFIG_SYSFLAGS_ADDR
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