[U-Boot] [PATCH v2 4/5] sun6i: Drop some "unknown magic" from dram init

[Hans de Goede]

Allwinner tells us that this bit of code is the rtc ram being used to detect
coming out of "super-standby" mode, and if that is the case, going out of
self-refresh mode.

Since we do not support "super-standby" mode, this can be dropped.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
Acked-by: Ian Campbell <ijc at hellion.org.uk>
---
 arch/arm/cpu/armv7/sunxi/dram_sun6i.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
index 2ac0b58..5e163cb 100644
--- a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
+++ b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
@@ -140,9 +140,6 @@ static void mctl_channel_init(int ch_index, struct dram_sun6i_para *para)
 
 	writel((MCTL_TITMSRST << 18) | (MCTL_TDLLLOCK << 6) | MCTL_TDLLSRST,
 	       &mctl_phy->ptr0);
-	/* Unknown magic performed by boot0 */
-	if ((readl(SUNXI_RTC_BASE + 0x20c) & 3) == 2)
-		setbits_le32(&mctl_phy->ptr0, 1 << 18);
 
 	writel((MCTL_TDINIT1 << 19) | MCTL_TDINIT0, &mctl_phy->ptr1);
 	writel((MCTL_TDINIT3 << 17) | MCTL_TDINIT2, &mctl_phy->ptr2);
-- 
2.1.0