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authorHans de Goede <hdegoede@redhat.com>2014-11-15 22:19:42 (GMT)
committerHans de Goede <hdegoede@redhat.com>2014-11-25 12:38:46 (GMT)
commit7b02d9c943b9a8d1a61a330b76e205fc468ac1ac (patch)
tree1de81a18a315e11ffbeaa8868c902455a8bd5629 /arch
parenteafec32000499c8f20589e44801c9febff9ce101 (diff)
downloadu-boot-7b02d9c943b9a8d1a61a330b76e205fc468ac1ac.tar.xz
sun6i: Drop some "unknown magic" from dram init
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@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv7/sunxi/dram_sun6i.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
index 10a6241..699173c 100644
--- a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
+++ b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c
@@ -142,9 +142,6 @@ 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);