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https://github.com/brain-hackers/u-boot-brain
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a821c4af79
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
41 lines
808 B
C
41 lines
808 B
C
/*
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* Qualcomm APQ8016 reset controller driver
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*
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* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.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 <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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DECLARE_GLOBAL_DATA_PTR;
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static int msm_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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phys_addr_t addr = devfdt_get_addr(dev);
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if (!addr)
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return -EINVAL;
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writel(0, addr);
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return -EINPROGRESS;
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}
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static struct sysreset_ops msm_sysreset_ops = {
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.request = msm_sysreset_request,
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};
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static const struct udevice_id msm_sysreset_ids[] = {
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{ .compatible = "qcom,pshold" },
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{ }
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};
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U_BOOT_DRIVER(msm_reset) = {
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.name = "msm_sysreset",
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.id = UCLASS_SYSRESET,
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.of_match = msm_sysreset_ids,
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.ops = &msm_sysreset_ops,
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};
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