ARM: tegra: Restore DRAM bank count
authorThierry Reding <treding@nvidia.com>
Mon, 15 Apr 2019 09:32:27 +0000 (11:32 +0200)
committerTom Warren <twarren@nvidia.com>
Wed, 5 Jun 2019 16:16:34 +0000 (09:16 -0700)
Commit 86cf1c82850f ("configs: Migrate CONFIG_NR_DRAM_BANKS") reduced
the number of DRAM banks supported by U-Boot from 1026 to 8 on P2771-000
boards.

However, as explained in commit a9819b9e33bd ("ARM: tegra: p2771-000:
increase max DRAM bank count"), the platform can have a large number of
unusable chunks of memory (up to 1024), so a total of 1026 DRAM banks
are needed to describe the worst-case situation.

In practice the number of DRAM banks needed will typically be much
lower, but we should be prepared to properly deal with the worst case.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
configs/p2771-0000-000_defconfig
configs/p2771-0000-500_defconfig

index 6d66cae3aafc7e394f2b86be6b86fb3e67e23848..f77ff9ffe66abe3151707a98984e1028af4eb1ff 100644 (file)
@@ -1,7 +1,7 @@
 CONFIG_ARM=y
 CONFIG_TEGRA=y
 CONFIG_SYS_TEXT_BASE=0x80080000
-CONFIG_NR_DRAM_BANKS=8
+CONFIG_NR_DRAM_BANKS=1026
 CONFIG_TEGRA186=y
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_CONSOLE_MUX=y
index b8ac94ce60e508253e70e2a196347525043ac260..700dfc2e1f8b6bd9421151ca6cdf8d607b93a564 100644 (file)
@@ -1,7 +1,7 @@
 CONFIG_ARM=y
 CONFIG_TEGRA=y
 CONFIG_SYS_TEXT_BASE=0x80080000
-CONFIG_NR_DRAM_BANKS=8
+CONFIG_NR_DRAM_BANKS=1026
 CONFIG_TEGRA186=y
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_CONSOLE_MUX=y