From 7158c5987e6999f1fd89b7170c685a7b29bc8322 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Mon, 13 Aug 2018 15:02:52 +0200
Subject: ARM: i.MX23: Add memory size detection

No need for the boards to manually add memory, we can do this
automatically by reading back the memory size from the SDRAM
controller.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-mxs/soc-imx23.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch/arm/mach-mxs/soc-imx23.c')

diff --git a/arch/arm/mach-mxs/soc-imx23.c b/arch/arm/mach-mxs/soc-imx23.c
index d471c8eb5c..f25fff18c3 100644
--- a/arch/arm/mach-mxs/soc-imx23.c
+++ b/arch/arm/mach-mxs/soc-imx23.c
@@ -19,6 +19,8 @@
 #include <restart.h>
 #include <mach/imx23-regs.h>
 #include <io.h>
+#include <asm/memory.h>
+#include <mach/imx23.h>
 
 #define HW_CLKCTRL_RESET 0x120
 # define HW_CLKCTRL_RESET_CHIP (1 << 1)
@@ -37,6 +39,8 @@ static void __noreturn imx23_restart_soc(struct restart_handler *rst)
 
 static int imx23_devices_init(void)
 {
+	arm_add_mem_device("ram0", IMX_MEMORY_BASE, imx23_get_memsize());
+
 	if (of_get_root_node())
 		return 0;
 
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