gru: Make SDRAM parameters individual struct files in CBFS

This patch changes Gru SDRAM parameters from structures that just get
compiled into the romstage to individual CBFS files. This allows us to
only load the parameter set we need for the board we're booting from
flash, which reduces our boot time and the SRAM memory footprint
required to hold the romstage.

TEST=Booted Kevin.

Change-Id: Ie88a515cbdb19a794ca0a230a56bcc82bed1e550
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16274
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

9 files changed, 70 insertions, 36 deletions

diff --git a/src/mainboard/google/gru/Makefile.inc b/src/mainboard/google/gru/Makefile.inc
index a0839e0207..07b27a760b 100644
--- a/src/mainboard/google/gru/Makefile.inc
+++ b/src/mainboard/google/gru/Makefile.inc
@@ -13,6 +13,8 @@
 ## GNU General Public License for more details.
 ##
 
+subdirs-y += sdram_params/
+
 bootblock-y += bootblock.c
 bootblock-y += chromeos.c
 bootblock-y += memlayout.ld
diff --git a/src/mainboard/google/gru/sdram_configs.c b/src/mainboard/google/gru/sdram_configs.c
index f34ebf182c..2ececdfd03 100644
--- a/src/mainboard/google/gru/sdram_configs.c
+++ b/src/mainboard/google/gru/sdram_configs.c
@@ -15,31 +15,24 @@
 
 #include <arch/io.h>
 #include <boardid.h>
+#include <cbfs.h>
 #include <console/console.h>
 #include <gpio.h>
 #include <soc/sdram.h>
 #include <string.h>
 #include <types.h>
 
-static struct rk3399_sdram_params sdram_configs[] = {
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-200.inc"
-
-/* 666MHz, enable odt 120o */
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-666.inc"
-
-/* 800MHz, enable odt 120o */
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-800.inc"
-
-/* 666MHz, disable odt */
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-666-no-odt.inc"
-
-/* 800MHz, disable odt */
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-800-no-odt.inc"
-
-/* 933MHz, enable odt 120o */
-#include "sdram_inf/sdram-lpddr3-hynix-4GB-933.inc"
+static const char *sdram_configs[] = {
+	"sdram-lpddr3-hynix-4GB-200",
+	"sdram-lpddr3-hynix-4GB-666",
+	"sdram-lpddr3-hynix-4GB-800",
+	"sdram-lpddr3-hynix-4GB-666-no-odt",
+	"sdram-lpddr3-hynix-4GB-800-no-odt",
+	"sdram-lpddr3-hynix-4GB-933",
 };
 
+static struct rk3399_sdram_params params;
+
 enum dram_speeds {
 	dram_200MHz = 0,
 	dram_666MHz = 1,
@@ -80,11 +73,8 @@ static enum dram_speeds get_sdram_index(void)
 
 const struct rk3399_sdram_params *get_sdram_config()
 {
-
-	enum dram_speeds speed = get_sdram_index();
-
-	printk(BIOS_INFO, "Using SDRAM configuration for %d MHz\n",
-	       sdram_configs[speed].ddr_freq / (1000 * 1000));
-
-	return &sdram_configs[speed];
+	if (cbfs_boot_load_struct(sdram_configs[get_sdram_index()],
+				  &params, sizeof(params)) != sizeof(params))
+		die("Cannot load SDRAM parameter file!");
+	return &params;
 }
diff --git a/src/mainboard/google/gru/sdram_params/Makefile.inc b/src/mainboard/google/gru/sdram_params/Makefile.inc
new file mode 100644
index 0000000000..a05cf79159
--- /dev/null
+++ b/src/mainboard/google/gru/sdram_params/Makefile.inc
@@ -0,0 +1,30 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright 2016 Rockchip 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.
+##
+
+sdram-params :=
+
+sdram-params += sdram-lpddr3-hynix-4GB-200
+sdram-params += sdram-lpddr3-hynix-4GB-666
+sdram-params += sdram-lpddr3-hynix-4GB-666-no-odt
+sdram-params += sdram-lpddr3-hynix-4GB-800
+sdram-params += sdram-lpddr3-hynix-4GB-800-no-odt
+sdram-params += sdram-lpddr3-hynix-4GB-933
+
+$(foreach params,$(sdram-params), \
+	$(eval cbfs-files-y += $(params)) \
+	$(eval $(params)-file := $(params).c:struct) \
+	$(eval $(params)-type := struct) \
+	$(eval $(params)-compression := $(CBFS_COMPRESS_FLAG)) \
+)
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-200.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-200.c
index 253364097d..dda6d98449 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-200.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-200.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-666-no-odt.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-666-no-odt.c
index dc5a78f6bd..9b0bfe7fd1 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-666-no-odt.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-666-no-odt.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-666.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-666.c
index 96c1cb8991..d5d67611dd 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-666.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-666.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-800-no-odt.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800-no-odt.c
index 4b02679611..866759b772 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-800-no-odt.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800-no-odt.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-800.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c
index f4a9b3dfd7..3a937bff7d 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-800.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};
diff --git a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-933.inc b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-933.c
index fe1949e526..2ef9d0c593 100644
--- a/src/mainboard/google/gru/sdram_inf/sdram-lpddr3-hynix-4GB-933.inc
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-933.c
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-{
+#include <soc/sdram.h>
+
+struct rk3399_sdram_params params = {
 	{
 		{
 			.rank = 0x2,
@@ -1560,4 +1562,4 @@
 			0x00000000	/* DENALI_PHY_958_DATA */
 		}
 	},
-},
+};