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memory: tegra20-emc: Correct memory device mask 

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>
This commit is contained in:
Dmitry Osipenko 2021-12-22 07:32:15 +03:00 committed by Krzysztof Kozlowski
parent e3aabb3c7d
commit 9ff684342e
1 changed files with 1 additions and 1 deletions
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2
drivers/memory/tegra/tegra20-emc.c
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@ -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;