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https://github.com/AsahiLinux/u-boot
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 Pepperl+Fuchs
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* Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <sysreset.h>
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#include <asm/io.h>
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#include <asm/arch/reset_manager.h>
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#include <linux/bitops.h>
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struct socfpga_sysreset_data {
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void __iomem *rstmgr_base;
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};
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static int socfpga_sysreset_request(struct udevice *dev,
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enum sysreset_t type)
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{
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struct socfpga_sysreset_data *data = dev_get_priv(dev);
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switch (type) {
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case SYSRESET_WARM:
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writel(BIT(RSTMGR_CTRL_SWWARMRSTREQ_LSB),
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data->rstmgr_base + RSTMGR_CTRL);
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break;
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case SYSRESET_COLD:
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writel(BIT(RSTMGR_CTRL_SWCOLDRSTREQ_LSB),
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data->rstmgr_base + RSTMGR_CTRL);
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break;
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default:
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return -EPROTONOSUPPORT;
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}
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return -EINPROGRESS;
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}
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static int socfpga_sysreset_probe(struct udevice *dev)
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{
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struct socfpga_sysreset_data *data = dev_get_priv(dev);
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data->rstmgr_base = dev_read_addr_ptr(dev);
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return 0;
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}
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static struct sysreset_ops socfpga_sysreset = {
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.request = socfpga_sysreset_request,
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};
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U_BOOT_DRIVER(sysreset_socfpga) = {
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.id = UCLASS_SYSRESET,
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.name = "socfpga_sysreset",
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.priv_auto = sizeof(struct socfpga_sysreset_data),
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.ops = &socfpga_sysreset,
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.probe = socfpga_sysreset_probe,
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};
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