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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: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
hifive-unleashed-5.1
Kuninori Morimoto 2013-04-01 21:20:02 -07:00 committed by Simon Horman
parent 5e3780ba6d
commit 27d5f27e25
2 changed files with 39 additions and 0 deletions
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1
arch/arm/mach-shmobile/Kconfig
View File

@ -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

38
arch/arm/mach-shmobile/board-bockw.c
View File

@ -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 = {