From: Xu Ziyuan <xzy.xu@rock-chips.com>
Date: Fri, 12 Aug 2016 07:43:48 +0000 (+0800)
Subject: rockchip: use dummy byte only enable OF_PLATDATA
X-Git-Tag: v2016.11-rc1~109^2~15
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ce26e8a1ddd55fc09e527f8381d54c35a02364c2;p=oweals%2Fu-boot.git

rockchip: use dummy byte only enable OF_PLATDATA

Add a condition to determine the rk3288_sdram_channel size.

This patch fixes read sdram_channel property failed from DT on rk3288
boards, which not enable OF_PLATDATA.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
---

diff --git a/arch/arm/include/asm/arch-rockchip/sdram.h b/arch/arm/include/asm/arch-rockchip/sdram.h
index e08e28f4f0..82c3d07cbb 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram.h
@@ -24,12 +24,16 @@ struct rk3288_sdram_channel {
 	u8 row_3_4;
 	u8 cs0_row;
 	u8 cs1_row;
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
 	/*
 	 * For of-platdata, which would otherwise convert this into two
 	 * byte-swapped integers. With a size of 9 bytes, this struct will
 	 * appear in of-platdata as a byte array.
+	 *
+	 * If OF_PLATDATA enabled, need to add a dummy byte in dts.(i.e 0xff)
 	 */
 	u8 dummy;
+#endif
 };
 
 struct rk3288_sdram_pctl_timing {