u-boot-brain/arch/arm/mach-tegra/emc.c
Thierry Reding e9c58f2bb8 ARM: tegra: Use common header for PMU declarations
There's no need to replicate the pmu.h header file for every Tegra SoC
generation. Use a single header that is shared across generations.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2019-06-05 09:16:33 -07:00

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C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011 The Chromium OS Authors.
*/
#include <common.h>
#include "emc.h"
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/emc.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/ap.h>
#include <asm/arch-tegra/clk_rst.h>
#include <asm/arch-tegra/pmu.h>
#include <asm/arch-tegra/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
/* These rates are hard-coded for now, until fdt provides them */
#define EMC_SDRAM_RATE_T20 (333000 * 2 * 1000)
#define EMC_SDRAM_RATE_T25 (380000 * 2 * 1000)
int board_emc_init(void)
{
unsigned rate;
switch (tegra_get_chip_sku()) {
default:
case TEGRA_SOC_T20:
rate = EMC_SDRAM_RATE_T20;
break;
case TEGRA_SOC_T25:
rate = EMC_SDRAM_RATE_T25;
break;
}
return tegra_set_emc(gd->fdt_blob, rate);
}