public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Thierry Reding <thierry.reding@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v5 15/27] ARM: tegra: Restore DRAM bank count
Date: Mon, 15 Apr 2019 11:32:27 +0200	[thread overview]
Message-ID: <20190415093239.27509-16-thierry.reding@gmail.com> (raw)
In-Reply-To: <20190415093239.27509-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

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>
---
 configs/p2771-0000-000_defconfig | 2 +-
 configs/p2771-0000-500_defconfig | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configs/p2771-0000-000_defconfig b/configs/p2771-0000-000_defconfig
index ac85efa37b3b..ad0802067e73 100644
--- a/configs/p2771-0000-000_defconfig
+++ b/configs/p2771-0000-000_defconfig
@@ -2,7 +2,7 @@ CONFIG_ARM=y
 CONFIG_TEGRA=y
 CONFIG_SYS_TEXT_BASE=0x80080000
 CONFIG_TEGRA186=y
-CONFIG_NR_DRAM_BANKS=8
+CONFIG_NR_DRAM_BANKS=1026
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_CONSOLE_MUX=y
 CONFIG_SYS_STDIO_DEREGISTER=y
diff --git a/configs/p2771-0000-500_defconfig b/configs/p2771-0000-500_defconfig
index df4d914d85cf..459b67fd195f 100644
--- a/configs/p2771-0000-500_defconfig
+++ b/configs/p2771-0000-500_defconfig
@@ -2,7 +2,7 @@ CONFIG_ARM=y
 CONFIG_TEGRA=y
 CONFIG_SYS_TEXT_BASE=0x80080000
 CONFIG_TEGRA186=y
-CONFIG_NR_DRAM_BANKS=8
+CONFIG_NR_DRAM_BANKS=1026
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_CONSOLE_MUX=y
 CONFIG_SYS_STDIO_DEREGISTER=y
-- 
2.21.0

  parent reply	other threads:[~2019-04-15  9:32 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-15  9:32 [U-Boot] [PATCH v5 00/27] ARM: tegra: Miscalleneous improvements Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 01/27] fdtdec: Add fdtdec_set_ethernet_mac_address() Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 02/27] lib: Implement strndup() Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 03/27] ARM: tegra: Fix mux type for disp1 and disp2 clocks on Tegra210 Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 04/27] ARM: tegra: Remove disp1 clock initialization " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 05/27] ARM: tegra: Use common header for PMU declarations Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 06/27] ARM: tegra: Guard clock code with a Kconfig symbol Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 07/27] ARM: tegra: Guard GP pad control " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 08/27] ARM: tegra: Guard memory controller " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 09/27] ARM: tegra: Guard pin " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 10/27] ARM: tegra: Guard powergate " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 11/27] ARM: tegra: Fix save_boot_params() prototype Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 12/27] ARM: tegra: Allow boards to override boot target devices Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 13/27] ARM: tegra: Support TZ-only access to PMC Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 14/27] ARM: tegra: Workaround UDC boot issues only if necessary Thierry Reding
2019-04-15  9:32 ` Thierry Reding [this message]
2019-04-15  9:32 ` [U-Boot] [PATCH v5 16/27] ARM: tegra: Unify Tegra186 builds Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 17/27] ARM: tegra: Implement cboot_save_boot_params() in C Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 18/27] ARM: tegra: Implement cboot_get_ethaddr() Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 19/27] ARM: tegra: Import cbootargs value from cboot DTB Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 20/27] ARM: tegra: Enable position independent build for 64-bit Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 21/27] p2371-2180: Pass Ethernet MAC to the kernel Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 22/27] p2771-0000: " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 23/27] p2371-2180: Add support for framebuffer carveouts Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 24/27] p2771-0000: " Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 25/27] ARM: tegra: Rename pcie-controller to pcie Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 26/27] ARM: tegra: Mark built-in Ethernet as default on Jetson TX2 Thierry Reding
2019-04-15  9:32 ` [U-Boot] [PATCH v5 27/27] ARM: tegra: Add NVIDIA Jetson Nano Developer Kit support Thierry Reding
2019-04-15 20:26 ` [U-Boot] [PATCH v5 00/27] ARM: tegra: Miscalleneous improvements Tom Warren

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190415093239.27509-16-thierry.reding@gmail.com \
    --to=thierry.reding@gmail.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox