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Diffstat (limited to 'target/linux/ar71xx/patches-3.2/015-MIPS-ath79-register-UART-device-for-the-AR933X-SoCs.patch')
-rw-r--r--target/linux/ar71xx/patches-3.2/015-MIPS-ath79-register-UART-device-for-the-AR933X-SoCs.patch80
1 files changed, 80 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.2/015-MIPS-ath79-register-UART-device-for-the-AR933X-SoCs.patch b/target/linux/ar71xx/patches-3.2/015-MIPS-ath79-register-UART-device-for-the-AR933X-SoCs.patch
new file mode 100644
index 0000000000..8a36c9845e
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/015-MIPS-ath79-register-UART-device-for-the-AR933X-SoCs.patch
@@ -0,0 +1,80 @@
+From d9215f4c69b414f589eeeff002af7ef58b96b172 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Mon, 20 Jun 2011 19:26:12 +0200
+Subject: [PATCH 15/27] MIPS: ath79: register UART device for the AR933X SoCs
+
+The AR933X SoCs does not have a 8250 compatible UART, they
+are using a different UART core. Register a different platform
+device for the different UART.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Cc: linux-mips@linux-mips.org
+Cc: Kathy Giori <kgiori@qca.qualcomm.com>
+Cc: "Luis R. Rodriguez" <rodrigue@qca.qualcomm.com>
+Patchwork: https://patchwork.linux-mips.org/patch/2528/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/ath79/dev-common.c | 38 ++++++++++++++++++++++++++++++++++++--
+ 1 files changed, 36 insertions(+), 2 deletions(-)
+
+--- a/arch/mips/ath79/dev-common.c
++++ b/arch/mips/ath79/dev-common.c
+@@ -20,6 +20,7 @@
+
+ #include <asm/mach-ath79/ath79.h>
+ #include <asm/mach-ath79/ar71xx_regs.h>
++#include <asm/mach-ath79/ar933x_uart_platform.h>
+ #include "common.h"
+ #include "dev-common.h"
+
+@@ -54,6 +55,30 @@ static struct platform_device ath79_uart
+ },
+ };
+
++static struct resource ar933x_uart_resources[] = {
++ {
++ .start = AR933X_UART_BASE,
++ .end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .start = ATH79_MISC_IRQ_UART,
++ .end = ATH79_MISC_IRQ_UART,
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct ar933x_uart_platform_data ar933x_uart_data;
++static struct platform_device ar933x_uart_device = {
++ .name = "ar933x-uart",
++ .id = -1,
++ .resource = ar933x_uart_resources,
++ .num_resources = ARRAY_SIZE(ar933x_uart_resources),
++ .dev = {
++ .platform_data = &ar933x_uart_data,
++ },
++};
++
+ void __init ath79_register_uart(void)
+ {
+ struct clk *clk;
+@@ -62,8 +87,17 @@ void __init ath79_register_uart(void)
+ if (IS_ERR(clk))
+ panic("unable to get UART clock, err=%ld", PTR_ERR(clk));
+
+- ath79_uart_data[0].uartclk = clk_get_rate(clk);
+- platform_device_register(&ath79_uart_device);
++ if (soc_is_ar71xx() ||
++ soc_is_ar724x() ||
++ soc_is_ar913x()) {
++ ath79_uart_data[0].uartclk = clk_get_rate(clk);
++ platform_device_register(&ath79_uart_device);
++ } else if (soc_is_ar933x()) {
++ ar933x_uart_data.uartclk = clk_get_rate(clk);
++ platform_device_register(&ar933x_uart_device);
++ } else {
++ BUG();
++ }
+ }
+
+ static struct platform_device ath79_wdt_device = {