From c4cbf482f796b12f240bb88340a61ecac12ee090 Mon Sep 17 00:00:00 2001 From: Lin Huang Date: Thu, 17 Mar 2016 15:28:33 +0800 Subject: rockchip: rk3399: add sdram driver Add the sdram driver for rk3399. With this patch we can boot into depthcharge. This patch also include a config file for lpddr3-hynix-4GB that generated bases on its datasheet. Please refer to TRM V0.3 Part1 Chapter 9 for DMC. BRANCH=none BUG=chrome-os-partner:51537 TEST=boot to depthcharge on kevin Change-Id: I2afcaa3b68dbad77a5fe677b835289b675ed2bef Signed-off-by: Patrick Georgi Original-Commit-Id: 5d777e29942057fb7237eefa34051d1f54b19405 Original-Change-Id: Ifa1fe98a7058869518757d50678a64620610d91d Original-Signed-off-by: Lin Huang Original-Signed-off-by: Vadim Bendebury Original-Reviewed-on: https://chromium-review.googlesource.com/332562 Reviewed-on: https://review.coreboot.org/14716 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/gru/sdram_configs.c | 36 ++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 src/mainboard/google/gru/sdram_configs.c (limited to 'src/mainboard/google/gru/sdram_configs.c') diff --git a/src/mainboard/google/gru/sdram_configs.c b/src/mainboard/google/gru/sdram_configs.c new file mode 100644 index 0000000000..787b36fa2d --- /dev/null +++ b/src/mainboard/google/gru/sdram_configs.c @@ -0,0 +1,36 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +static struct rk3399_sdram_params sdram_configs[] = { +#include "sdram_inf/sdram-lpddr3-hynix-4GB.inc" +}; + +const struct rk3399_sdram_params *get_sdram_config() +{ + u32 ramcode = ram_code(); + + if (ramcode >= ARRAY_SIZE(sdram_configs) + || sdram_configs[ramcode].dramtype == UNUSED) + die("Invalid RAMCODE."); + return &sdram_configs[ramcode]; +} -- cgit v1.2.3