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https://github.com/brain-hackers/u-boot-brain
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b603c68129
If a support card is attached to the main board, the on-board SMSC9118 LAN controller is available. It must be kept in reset state for a while on start-up. When the board is kicked via a debbuger rather than pushing the hardware reset button, on-board chips are not reset; in this case the reset signals should be asserted by software. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
27 lines
515 B
C
27 lines
515 B
C
/*
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* Copyright (C) 2012-2014 Panasonic Corporation
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* Author: Masahiro Yamada <yamada.m@jp.panasonic.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 <asm/io.h>
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#include <asm/arch/sc-regs.h>
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void reset_cpu(unsigned long ignored)
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{
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u32 tmp;
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writel(5, SC_IRQTIMSET); /* default value */
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tmp = readl(SC_SLFRSTSEL);
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tmp &= ~0x3; /* mask [1:0] */
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tmp |= 0x0; /* XRST reboot */
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writel(tmp, SC_SLFRSTSEL);
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tmp = readl(SC_SLFRSTCTL);
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tmp |= 0x1;
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writel(tmp, SC_SLFRSTCTL);
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}
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