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Nerves System - Trellis

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nerves_system_trellis uboot 0001-sunxi-support-uart4-console-output.patch
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uboot/0001-sunxi-support-uart4-console-output.patch 

From 7e5830056a371b6fd530aee5bc97f80429d4c516 Mon Sep 17 00:00:00 2001

From: Frank Hunleth <fhunleth@troodon-software.com>

Date: Fri, 9 May 2025 15:44:26 -0400

Subject: [PATCH] sunxi: support uart4 console output



---

 arch/arm/mach-sunxi/board.c | 4 ++++

 1 file changed, 4 insertions(+)



diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c

index 11a49418225..6b78b8cfe6e 100644

--- a/arch/arm/mach-sunxi/board.c

+++ b/arch/arm/mach-sunxi/board.c

@@ -171,6 +171,10 @@ static int gpio_init(void)

 	sunxi_gpio_set_cfgpin(SUNXI_GPB(6), 7);

 	sunxi_gpio_set_cfgpin(SUNXI_GPB(7), 7);

 	sunxi_gpio_set_pull(SUNXI_GPB(7), SUNXI_GPIO_PULL_UP);

+#elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I_R528)

+	sunxi_gpio_set_cfgpin(SUNXI_GPD(7), 5);

+	sunxi_gpio_set_cfgpin(SUNXI_GPD(8), 5);

+	sunxi_gpio_set_pull(SUNXI_GPD(8), SUNXI_GPIO_PULL_UP);

 #elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I)

 	sunxi_gpio_set_cfgpin(SUNXI_GPL(2), SUN8I_GPL_R_UART);

 	sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL_R_UART);

-- 

2.43.0