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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>
This commit is contained in:
Gabor Juhos 2011-06-20 19:26:12 +02:00 committed by Ralf Baechle
parent d57f341ba0
commit 13051c5cc3
1 changed files with 36 additions and 2 deletions
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38
arch/mips/ath79/dev-common.c
View File

@ -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_device = {
},
};
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 = {