MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-10-22 23:13:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

memory: tegra20-emc: Correct memory device mask

Browse Source 
commit 9ff684342e upstream.

Memory chip select is swapped when we read mode register, correct it.
We didn't have devices that use a single LPDDR chip and both chips are
always identical, hence this change is just a minor improvement.

Fixes: 131dd9a436 ("memory: tegra20-emc: Support matching timings by LPDDR2 configuration")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20211222043215.28237-2-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Osipenko 2021-12-22 07:32:15 +03:00 committed by Greg Kroah-Hartman
parent 12a1cf9db1
commit ad73b43e69
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/memory/tegra/tegra20-emc.c
View File

@ -540,7 +540,7 @@ static int emc_read_lpddr_mode_register(struct tegra_emc *emc,
unsigned int register_addr,
unsigned int *register_data)
{
u32 memory_dev = emem_dev + 1;
u32 memory_dev = emem_dev ? 1 : 2;
u32 val, mr_mask = 0xff;
int err;