[U-Boot,v3,11/19] ARM: tegra: Restore DRAM bank count

Message ID	20190321180118.26475-12-thierry.reding@gmail.com
State	Superseded
Delegated to:	Tom Warren
Headers	show Return-Path: <u-boot-bounces@lists.denx.de> From: Thierry Reding <thierry.reding@gmail.com> To: Tom Warren <twarren@nvidia.com> Date: Thu, 21 Mar 2019 19:01:10 +0100 Message-Id: <20190321180118.26475-12-thierry.reding@gmail.com> In-Reply-To: <20190321180118.26475-1-thierry.reding@gmail.com> References: <20190321180118.26475-1-thierry.reding@gmail.com> MIME-Version: 1.0 Cc: u-boot@lists.denx.de Subject: [U-Boot] [PATCH v3 11/19] ARM: tegra: Restore DRAM bank count Precedence: list Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" <u-boot-bounces@lists.denx.de>
Series	ARM: tegra: Miscellaneous improvements \| expand [U-Boot,v3,00/19] ARM: tegra: Miscellaneous improvements [U-Boot,v3,01/19] ARM: tegra: Use common header for PMU declarations [U-Boot,v3,02/19] ARM: tegra: Guard clock code with a Kconfig symbol [U-Boot,v3,03/19] ARM: tegra: Guard GP pad control code with a Kconfig symbol [U-Boot,v3,04/19] ARM: tegra: Guard memory controller code with a Kconfig symbol [U-Boot,v3,05/19] ARM: tegra: Guard pin controller code with a Kconfig symbol [U-Boot,v3,06/19] ARM: tegra: Guard powergate code with a Kconfig symbol [U-Boot,v3,07/19] ARM: tegra: Fix save_boot_params() prototype [U-Boot,v3,08/19] ARM: tegra: Allow boards to override boot target devices [U-Boot,v3,09/19] ARM: tegra: Support TZ-only access to PMC [U-Boot,v3,10/19] ARM: tegra: Workaround UDC boot issues only if necessary [U-Boot,v3,11/19] ARM: tegra: Restore DRAM bank count [U-Boot,v3,12/19] ARM: tegra: Unify Tegra186 builds [U-Boot,v3,13/19] ARM: tegra: Implement cboot_save_boot_params() in C [U-Boot,v3,14/19] ARM: tegra: Implement cboot_get_ethaddr() [U-Boot,v3,15/19] ARM: tegra: Enable position independent build for 64-bit [U-Boot,v3,16/19] p2371-2180: Pass Ethernet MAC to the kernel [U-Boot,v3,17/19] p2771-0000: Pass Ethernet MAC to the kernel [U-Boot,v3,18/19] lib: Implement strndup() [U-Boot,v3,19/19] ARM: tegra: Import cbootargs value from cboot DTB

Message ID

20190321180118.26475-12-thierry.reding@gmail.com

State

Superseded

Delegated to:

Tom Warren

Headers

From: Thierry Reding <thierry.reding@gmail.com>
To: Tom Warren <twarren@nvidia.com>
Date: Thu, 21 Mar 2019 19:01:10 +0100
Message-Id: <20190321180118.26475-12-thierry.reding@gmail.com>
In-Reply-To: <20190321180118.26475-1-thierry.reding@gmail.com>
References: <20190321180118.26475-1-thierry.reding@gmail.com>
MIME-Version: 1.0
Cc: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 11/19] ARM: tegra: Restore DRAM bank count
Precedence: list
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Errors-To: u-boot-bounces@lists.denx.de
Sender: "U-Boot" <u-boot-bounces@lists.denx.de>

Series

ARM: tegra: Miscellaneous improvements | expand

Commit Message

Thierry Reding March 21, 2019, 6:01 p.m. UTC

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

[U-Boot,v3,11/19] ARM: tegra: Restore DRAM bank count

Commit Message

Patch