Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 13051c5c authored by Gabor Juhos's avatar Gabor Juhos Committed by Ralf Baechle
Browse files

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: default avatarGabor 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: default avatarRalf Baechle <ralf@linux-mips.org>
parent d57f341b

arch/mips/ath79/dev-common.c

+36 −2
Original line number Diff line number Diff line
@@ -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));



	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 = {