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Commit 27d5f27e authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Simon Horman
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ARM: shmobile: bockw: add SMSC ethernet support 



This patch adds SMSC ethernet support on Bock-W

Bock-W SMSC needs FPGA settings which enables interrupt.
This patch does it on bockw_init() function.
As notes for future, this FPGA settings should be updated,
since this FPGA is using cascaded interrupt.
Current code is assuming that this FPGA interrupt user is only SMSC.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 5e3780ba

arch/arm/mach-shmobile/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -133,6 +133,7 @@ config MACH_BOCKW 
	bool "BOCK-W platform"

	depends on ARCH_R8A7778

	select ARCH_REQUIRE_GPIOLIB

	select RENESAS_INTC_IRQPIN

	select USE_OF



config MACH_MARZEN

arch/arm/mach-shmobile/board-bockw.c

+38 −0
Original line number Diff line number Diff line
@@ -19,14 +19,52 @@ 
 */



#include <linux/platform_device.h>

#include <linux/smsc911x.h>

#include <mach/common.h>

#include <mach/irqs.h>

#include <mach/r8a7778.h>

#include <asm/mach/arch.h>



static struct smsc911x_platform_config smsc911x_data = {

	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,

	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,

	.flags		= SMSC911X_USE_32BIT,

	.phy_interface	= PHY_INTERFACE_MODE_MII,

};



static struct resource smsc911x_resources[] = {

	DEFINE_RES_MEM(0x18300000, 0x1000),

	DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */

};



#define IRQ0MR	0x30

static void __init bockw_init(void)

{

	void __iomem *fpga;



	r8a7778_clock_init();

	r8a7778_init_irq_extpin(1);

	r8a7778_add_standard_devices();



	fpga = ioremap_nocache(0x18200000, SZ_1M);

	if (fpga) {

		/*

		 * CAUTION

		 *

		 * IRQ0/1 is cascaded interrupt from FPGA.

		 * it should be cared in the future

		 * Now, it is assuming IRQ0 was used only from SMSC.

		 */

		u16 val = ioread16(fpga + IRQ0MR);

		val &= ~(1 << 4); /* enable SMSC911x */

		iowrite16(val, fpga + IRQ0MR);

		iounmap(fpga);



		platform_device_register_resndata(

			&platform_bus, "smsc911x", -1,

			smsc911x_resources, ARRAY_SIZE(smsc911x_resources),

			&smsc911x_data, sizeof(smsc911x_data));

	}

}



static const char *bockw_boards_compat_dt[] __initdata = {