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>
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@ -133,6 +133,7 @@ config MACH_BOCKW
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bool "BOCK-W platform"
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depends on ARCH_R8A7778
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select ARCH_REQUIRE_GPIOLIB
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select RENESAS_INTC_IRQPIN
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select USE_OF
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config MACH_MARZEN
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@ -19,14 +19,52 @@
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*/
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#include <linux/platform_device.h>
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#include <linux/smsc911x.h>
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#include <mach/common.h>
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#include <mach/irqs.h>
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#include <mach/r8a7778.h>
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#include <asm/mach/arch.h>
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static struct smsc911x_platform_config smsc911x_data = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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.flags = SMSC911X_USE_32BIT,
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.phy_interface = PHY_INTERFACE_MODE_MII,
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};
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static struct resource smsc911x_resources[] = {
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DEFINE_RES_MEM(0x18300000, 0x1000),
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DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */
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};
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#define IRQ0MR 0x30
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static void __init bockw_init(void)
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{
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void __iomem *fpga;
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r8a7778_clock_init();
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r8a7778_init_irq_extpin(1);
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r8a7778_add_standard_devices();
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fpga = ioremap_nocache(0x18200000, SZ_1M);
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if (fpga) {
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/*
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* CAUTION
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*
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* IRQ0/1 is cascaded interrupt from FPGA.
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* it should be cared in the future
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* Now, it is assuming IRQ0 was used only from SMSC.
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*/
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u16 val = ioread16(fpga + IRQ0MR);
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val &= ~(1 << 4); /* enable SMSC911x */
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iowrite16(val, fpga + IRQ0MR);
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iounmap(fpga);
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platform_device_register_resndata(
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&platform_bus, "smsc911x", -1,
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smsc911x_resources, ARRAY_SIZE(smsc911x_resources),
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&smsc911x_data, sizeof(smsc911x_data));
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}
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}
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static const char *bockw_boards_compat_dt[] __initdata = {
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