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https://github.com/AsahiLinux/u-boot
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38 lines
808 B
C
38 lines
808 B
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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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 "emc.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/emc.h>
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#include <asm/arch/pmu.h>
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#include <asm/arch/tegra.h>
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#include <asm/arch-tegra/ap.h>
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#include <asm/arch-tegra/clk_rst.h>
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#include <asm/arch-tegra/sys_proto.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* These rates are hard-coded for now, until fdt provides them */
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#define EMC_SDRAM_RATE_T20 (333000 * 2 * 1000)
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#define EMC_SDRAM_RATE_T25 (380000 * 2 * 1000)
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int board_emc_init(void)
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{
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unsigned rate;
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switch (tegra_get_chip_sku()) {
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default:
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case TEGRA_SOC_T20:
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rate = EMC_SDRAM_RATE_T20;
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break;
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case TEGRA_SOC_T25:
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rate = EMC_SDRAM_RATE_T25;
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break;
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}
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return tegra_set_emc(gd->fdt_blob, rate);
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}
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