From 3ed2ece5e162b104cd3ea3788cae841ecd24408f Mon Sep 17 00:00:00 2001
From: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Date: Wed, 14 Oct 2015 09:55:52 -0700
Subject: [PATCH] armv8: cavium: Get DRAM size from ATF
Change the dram_init() function on ThunderX to query ATF services for
the real installed DRAM size
Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
---
board/cavium/thunderx/thunderx.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/board/cavium/thunderx/thunderx.c b/board/cavium/thunderx/thunderx.c
index 486374e982b..b9267676dc6 100644
--- a/board/cavium/thunderx/thunderx.c
+++ b/board/cavium/thunderx/thunderx.c
@@ -9,6 +9,8 @@
#include <errno.h>
#include <linux/compiler.h>
+#include <cavium/atf.h>
+
#if !CONFIG_IS_ENABLED(OF_CONTROL)
#include <dm/platdata.h>
#include <dm/platform_data/serial_pl01x.h>
@@ -50,6 +52,31 @@ int timer_init(void)
return 0;
}
+int dram_init(void)
+{
+ ssize_t node_count = atf_node_count();
+ ssize_t dram_size;
+ int node;
+
+ printf("Initializing\nNodes in system: %zd\n", node_count);
+
+ gd->ram_size = 0;
+
+ for (node = 0; node < node_count; node++) {
+ dram_size = atf_dram_size(node);
+ printf("Node %d: %zd MBytes of DRAM\n", node, dram_size >> 20);
+ gd->ram_size += dram_size;
+ }
+
+ gd->ram_size -= MEM_BASE;
+
+ *(unsigned long *)CPU_RELEASE_ADDR = 0;
+
+ puts("DRAM size:");
+
+ return 0;
+}
+
/*
* Board specific reset that is system reset.
*/
--
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