openwrt/target/linux/ath79/patches-4.14/0015-MIPS-ath79-enable-uart-during-early_prink.patch
Koen Vandeputte e39414ed07 kernel: bump 4.14 to 4.14.43 for 18.06
Refreshed all patches

Dropped upstreamed patches:
522-PCI-aardvark-fix-logic-in-PCI-configuration-read-write-functions.patch
523-PCI-aardvark-set-PIO_ADDR_LS-correctly-in-advk_pcie_rd_conf.patch
525-PCI-aardvark-use-isr1-instead-of-isr0-interrupt-in-legacy-irq-mode.patch
527-PCI-aardvark-fix-PCIe-max-read-request-size-setting.patch

updated patches:
524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch
030-USB-serial-option-fix-dwm-158-3g-modem-interface.patch

Added new ARM64 symbol: CONFIG_ARM64_ERRATUM_1024718

Compile-tested on: cns3xxx, imx6, mvebu (arm64), x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-05-24 16:04:09 +02:00

72 lines
1.6 KiB
Diff

From b14f8260724abec6c82970085dece6a143d3a0db Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 5 Mar 2018 11:38:21 +0100
Subject: [PATCH 15/27] MIPS: ath79: enable uart during early_prink
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/ath79/early_printk.c | 44 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
--- a/arch/mips/ath79/early_printk.c
+++ b/arch/mips/ath79/early_printk.c
@@ -58,6 +58,46 @@ static void prom_putchar_dummy(unsigned
/* nothing to do */
}
+static void prom_enable_uart(u32 id)
+{
+ void __iomem *gpio_base;
+ u32 uart_en;
+ u32 t;
+
+ switch (id) {
+ case REV_ID_MAJOR_AR71XX:
+ uart_en = AR71XX_GPIO_FUNC_UART_EN;
+ break;
+
+ case REV_ID_MAJOR_AR7240:
+ case REV_ID_MAJOR_AR7241:
+ case REV_ID_MAJOR_AR7242:
+ uart_en = AR724X_GPIO_FUNC_UART_EN;
+ break;
+
+ case REV_ID_MAJOR_AR913X:
+ uart_en = AR913X_GPIO_FUNC_UART_EN;
+ break;
+
+ case REV_ID_MAJOR_AR9330:
+ case REV_ID_MAJOR_AR9331:
+ uart_en = AR933X_GPIO_FUNC_UART_EN;
+ break;
+
+ case REV_ID_MAJOR_AR9341:
+ case REV_ID_MAJOR_AR9342:
+ case REV_ID_MAJOR_AR9344:
+ /* TODO */
+ default:
+ return;
+ }
+
+ gpio_base = (void __iomem *)(KSEG1ADDR(AR71XX_GPIO_BASE));
+ t = __raw_readl(gpio_base + AR71XX_GPIO_REG_FUNC);
+ t |= uart_en;
+ __raw_writel(t, gpio_base + AR71XX_GPIO_REG_FUNC);
+}
+
static void prom_putchar_init(void)
{
void __iomem *base;
@@ -88,8 +128,10 @@ static void prom_putchar_init(void)
default:
_prom_putchar = prom_putchar_dummy;
- break;
+ return;
}
+
+ prom_enable_uart(id);
}
void prom_putchar(unsigned char ch)