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| author | Dmitry Osipenko <digetx@gmail.com> | 2021-12-22 07:32:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-13 12:50:34 +0100 |
| commit | ad73b43e6908321433eec18c3bd3968a8008f662 (patch) | |
| tree | 880db37ed409bc0016d32489f1b1c122d64ed70f /drivers/memory/tegra | |
| parent | 12a1cf9db1785f4d25b7852eaad612df917c885c (diff) | |
| download | linux-ad73b43e6908321433eec18c3bd3968a8008f662.tar.gz linux-ad73b43e6908321433eec18c3bd3968a8008f662.tar.bz2 linux-ad73b43e6908321433eec18c3bd3968a8008f662.zip | |
memory: tegra20-emc: Correct memory device mask
commit 9ff684342ee7d3ea2755c6e9b60bc43085baa3ad 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: 131dd9a436d8 ("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>
Diffstat (limited to 'drivers/memory/tegra')
| -rw-r--r-- | drivers/memory/tegra/tegra20-emc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index 2ac074b96f85..636ed37a4f66 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -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; |