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Add patch to fix PCI-e on Jetson TK1

This commit is contained in:
Peter Robinson 2016-01-19 07:29:08 +00:00
parent c0ae3b6ff3
commit 25b1986fc2
2 changed files with 65 additions and 1 deletions
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59
0001-ARM-tegra-rm-Jetson-TK1-PMIC-GPIO-programming.patch Normal file
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@ -0,0 +1,59 @@
From 85e3926adef34b6ea22275f040efbbd7b1f63a20 Mon Sep 17 00:00:00 2001
From: Peter Robinson <pbrobinson@gmail.com>
Date: Tue, 19 Jan 2016 07:26:15 +0000
Subject: [PATCH] ARM: tegra: rm Jetson TK1 PMIC GPIO programming
From: Stephen Warren <swarren@nvidia.com>
The PMIC is configured such that its GPIOs have the correct configuration
at power-up, so no programming is required.
In fact, the current programming is actively wrong, since:
(a) the AS3722 driver configures the GPIO to be an output before setting
its output value, which causes a 0v glitch on the output.
(b) the AS3722 driver configures the GPIO to drive a high voltage from its
VSUP_GPIO power source rather than its VDD_GPIO_LV power source, so the pin
drives 5V not 1.8V as desired.
Solve these problems by removing the code which configures the PMIC GPIOs.
Note that this patch was tested directly on top of v2016.01; since then,
commit 96350f729c42 "dm: tegra: net: Convert tegra boards to driver model
for Ethernet" prevents PCIe from being initialized. Alternatively, simply
revert that commit to get PCIe Ethernet working again, then apply this
patch to test.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
board/nvidia/jetson-tk1/jetson-tk1.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/board/nvidia/jetson-tk1/jetson-tk1.c b/board/nvidia/jetson-tk1/jetson-tk1.c
index 52425a8..fdc61ea 100644
--- a/board/nvidia/jetson-tk1/jetson-tk1.c
+++ b/board/nvidia/jetson-tk1/jetson-tk1.c
@@ -58,19 +58,6 @@ int tegra_pcie_board_init(void)
return err;
}
- err = as3722_gpio_configure(pmic, 1, AS3722_GPIO_OUTPUT_VDDH |
- AS3722_GPIO_INVERT);
- if (err < 0) {
- error("failed to configure GPIO#1 as output: %d\n", err);
- return err;
- }
-
- err = as3722_gpio_direction_output(pmic, 2, 1);
- if (err < 0) {
- error("failed to set GPIO#2 high: %d\n", err);
- return err;
- }
-
return 0;
}
--
2.5.0

7
uboot-tools.spec
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@ -2,7 +2,7 @@
Name: uboot-tools
Version: 2016.01
Release: 1%{?candidate:.%{candidate}}%{?dist}
Release: 2%{?candidate:.%{candidate}}%{?dist}
Summary: U-Boot utilities
Group: Development/Tools
@ -14,6 +14,7 @@ Source1: armv7-boards
Patch1: 0004-Add-BOOTENV_INIT_COMMAND-for-commands-that-may-be-ne.patch
Patch2: 0005-port-utilite-to-distro-generic-boot-commands.patch
Patch3: 0001-am335x-BeagleBones-enable-CONFIG_AUTOBOOT_KEYED.patch
Patch4: 0001-ARM-tegra-rm-Jetson-TK1-PMIC-GPIO-programming.patch
BuildRequires: bc
BuildRequires: dtc
@ -163,6 +164,10 @@ install -p -m 0644 tools/env/fw_env.config $RPM_BUILD_ROOT%{_sysconfdir}
%endif
%changelog
* Tue Jan 19 2016 Peter Robinson <pbrobinson@fedoraproject.org> 2016.01-2
- Add patch to fix PCI-e on Jetson TK1
- Add patch fo serial junk on BeagleBone
* Tue Jan 12 2016 Peter Robinson <pbrobinson@fedoraproject.org> 2016.01-1
- Update to 2016.01 GA