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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <i2c.h>
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#include <rtc.h>
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#include <asm/rtc.h>
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#include <dm/acpi.h>
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#define REG_COUNT 0x80
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static int sandbox_rtc_get(struct udevice *dev, struct rtc_time *time)
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{
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u8 buf[7];
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int ret;
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ret = dm_i2c_read(dev, REG_SEC, buf, sizeof(buf));
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if (ret < 0)
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return ret;
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time->tm_sec = buf[REG_SEC - REG_SEC];
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time->tm_min = buf[REG_MIN - REG_SEC];
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time->tm_hour = buf[REG_HOUR - REG_SEC];
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time->tm_mday = buf[REG_MDAY - REG_SEC];
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time->tm_mon = buf[REG_MON - REG_SEC];
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time->tm_year = buf[REG_YEAR - REG_SEC] + 1900;
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time->tm_wday = buf[REG_WDAY - REG_SEC];
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return 0;
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}
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static int sandbox_rtc_set(struct udevice *dev, const struct rtc_time *time)
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{
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u8 buf[7];
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int ret;
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buf[REG_SEC - REG_SEC] = time->tm_sec;
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buf[REG_MIN - REG_SEC] = time->tm_min;
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buf[REG_HOUR - REG_SEC] = time->tm_hour;
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buf[REG_MDAY - REG_SEC] = time->tm_mday;
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buf[REG_MON - REG_SEC] = time->tm_mon;
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buf[REG_YEAR - REG_SEC] = time->tm_year - 1900;
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buf[REG_WDAY - REG_SEC] = time->tm_wday;
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ret = dm_i2c_write(dev, REG_SEC, buf, sizeof(buf));
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if (ret < 0)
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return ret;
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return 0;
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}
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static int sandbox_rtc_reset(struct udevice *dev)
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{
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return dm_i2c_reg_write(dev, REG_RESET, 0);
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}
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static int sandbox_rtc_read8(struct udevice *dev, unsigned int reg)
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{
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return dm_i2c_reg_read(dev, reg);
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}
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static int sandbox_rtc_write8(struct udevice *dev, unsigned int reg, int val)
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{
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return dm_i2c_reg_write(dev, reg, val);
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}
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#if CONFIG_IS_ENABLED(ACPIGEN)
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static int sandbox_rtc_get_name(const struct udevice *dev, char *out_name)
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{
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return acpi_copy_name(out_name, "RTCC");
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}
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struct acpi_ops sandbox_rtc_acpi_ops = {
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.get_name = sandbox_rtc_get_name,
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};
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#endif
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static int sandbox_rtc_bind(struct udevice *dev)
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{
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#if CONFIG_IS_ENABLED(PLATDATA)
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struct sandbox_i2c_rtc_plat_data *plat = dev_get_plat(dev);
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/* Set up the emul_idx for i2c_emul_find() */
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i2c_emul_set_idx(dev, plat->dtplat.sandbox_emul->idx);
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#endif
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return 0;
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}
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static const struct rtc_ops sandbox_rtc_ops = {
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.get = sandbox_rtc_get,
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.set = sandbox_rtc_set,
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.reset = sandbox_rtc_reset,
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.read8 = sandbox_rtc_read8,
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.write8 = sandbox_rtc_write8,
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};
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static const struct udevice_id sandbox_rtc_ids[] = {
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{ .compatible = "sandbox-rtc" },
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{ }
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};
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U_BOOT_DRIVER(sandbox_rtc) = {
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.name = "sandbox_rtc",
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.id = UCLASS_RTC,
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.of_match = sandbox_rtc_ids,
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.ops = &sandbox_rtc_ops,
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.bind = sandbox_rtc_bind,
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ACPI_OPS_PTR(&sandbox_rtc_acpi_ops)
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};
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