63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/*
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* (C) Copyright 2015 Google, Inc
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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 <syscon.h>
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#include <sysreset.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/cru_rk3188.h>
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#include <asm/arch/grf_rk3188.h>
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#include <asm/arch/hardware.h>
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#include <linux/err.h>
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int rk3188_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct rk3188_cru *cru = rockchip_get_cru();
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struct rk3188_grf *grf;
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if (IS_ERR(cru))
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return PTR_ERR(cru);
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switch (type) {
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case SYSRESET_WARM:
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grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
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if (IS_ERR(grf))
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return -EPROTONOSUPPORT;
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/*
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* warm-reset keeps the remap value,
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* so make sure it's disabled.
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*/
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rk_clrsetreg(&grf->soc_con0,
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NOC_REMAP_MASK << NOC_REMAP_SHIFT,
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0 << NOC_REMAP_SHIFT);
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rk_clrreg(&cru->cru_mode_con, 0xffff);
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writel(0xeca8, &cru->cru_glb_srst_snd_value);
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break;
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case SYSRESET_COLD:
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rk_clrreg(&cru->cru_mode_con, 0xffff);
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writel(0xfdb9, &cru->cru_glb_srst_fst_value);
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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 struct sysreset_ops rk3188_sysreset = {
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.request = rk3188_sysreset_request,
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};
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U_BOOT_DRIVER(sysreset_rk3188) = {
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.name = "rk3188_sysreset",
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.id = UCLASS_SYSRESET,
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.ops = &rk3188_sysreset,
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};
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