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https://github.com/AsahiLinux/u-boot
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36 lines
757 B
C
36 lines
757 B
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2021-2022 Marek Vasut <marex@denx.de>
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*/
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#include <common.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/imx8mm_pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <spl.h>
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#define SNVS_BASE_ADDR 0x30370000
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#define SNVS_LPSR 0x4c
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#define SNVS_LPLVDR 0x64
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#define SNVS_LPPGDR_INIT 0x41736166
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static void setup_snvs(void)
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{
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/* Enable SNVS clock */
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clock_enable(CCGR_SNVS, 1);
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/* Initialize glitch detect */
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writel(SNVS_LPPGDR_INIT, SNVS_BASE_ADDR + SNVS_LPLVDR);
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/* Clear interrupt status */
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writel(0xffffffff, SNVS_BASE_ADDR + SNVS_LPSR);
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}
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void board_early_init(void)
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{
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init_uart_clk(1);
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setup_snvs();
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}
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