From patchwork Mon Mar 23 03:15:52 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Simon Glass <sjg@chromium.org>
X-Patchwork-Id: 244128
List-Id: U-Boot discussion <u-boot.lists.denx.de>
From: sjg at chromium.org (Simon Glass)
Date: Sun, 22 Mar 2020 21:15:52 -0600
Subject: [PATCH v2 1/2] arm: dts: bcm283x: Allow UARTs to work before
 relocation
Message-ID: <20200322211547.v2.1.I8dcc15fe45e2ac98b412cfdc230e469d429e628b@changeid>

At present the pinctrl nodes are not enabled in pre-relocation U-Boot so
the UARTs do not correctly select the pinconfig to enable the UART pins.
Fix this so that the U-Boot banner is printed.

This fixes serial output on rpi_3b_32b with the following config.txt
options:

   enable_uart=1
   gpu_freq=250

Signed-off-by: Simon Glass <sjg at chromium.org>
Fixes: 9821636b64 (bcm2835_pinctrl: Probe pre-reloc)
---

Changes in v2:
- Update commit message

 arch/arm/dts/bcm283x-u-boot.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/dts/bcm283x-u-boot.dtsi b/arch/arm/dts/bcm283x-u-boot.dtsi
index 36548dad62..68d03627f4 100644
--- a/arch/arm/dts/bcm283x-u-boot.dtsi
+++ b/arch/arm/dts/bcm283x-u-boot.dtsi
@@ -19,3 +19,11 @@
 &gpio {
 	u-boot,dm-pre-reloc;
 };
+
+&uart0_gpio14 {
+	u-boot,dm-pre-reloc;
+};
+
+&uart1_gpio14 {
+	u-boot,dm-pre-reloc;
+};