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https://github.com/brain-hackers/u-boot-brain
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c21f58548c
For LD11 and LD20 SoCs, the RST_n pin is asserted by default. If the EXT_CSD[162], bit[1:0] (RST_n_ENABLE) is fused, the eMMC device would stay in the reset state until its RST_n pin is deasserted by software. Currently, this is cared by an ad-hoc way because the eMMC hardware reset provider is not supported in U-Boot for now. This code should be re-written once the "mmc-pwrseq-emmc" binding is supported. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
18 lines
278 B
C
18 lines
278 B
C
/*
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* Copyright (C) 2017 Socionext Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <linux/io.h>
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#include "../init.h"
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#define SDCTRL_EMMC_HW_RESET 0x59810280
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void uniphier_ld20_clk_init(void)
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{
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/* TODO: use "mmc-pwrseq-emmc" */
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writel(1, SDCTRL_EMMC_HW_RESET);
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}
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