ARM: shmobile: Koelsch: add Ether support
Register Ether platform device and pin data on the Koelsch board. Register platform fixup for Micrel KSZ8041 PHY, just like on the Lager board. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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@ -25,10 +25,12 @@
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#include <linux/input.h>
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#include <linux/kernel.h>
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#include <linux/leds.h>
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#include <linux/phy.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_data/gpio-rcar.h>
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#include <linux/platform_data/rcar-du.h>
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#include <linux/platform_device.h>
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#include <linux/sh_eth.h>
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#include <mach/common.h>
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#include <mach/irqs.h>
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#include <mach/r8a7791.h>
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@ -87,6 +89,19 @@ static void __init koelsch_add_du_device(void)
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platform_device_register_full(&info);
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}
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/* Ether */
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static const struct sh_eth_plat_data ether_pdata __initconst = {
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.phy = 0x1,
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.edmac_endian = EDMAC_LITTLE_ENDIAN,
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.phy_interface = PHY_INTERFACE_MODE_RMII,
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.ether_link_active_low = 1,
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};
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static const struct resource ether_resources[] __initconst = {
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DEFINE_RES_MEM(0xee700000, 0x400),
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DEFINE_RES_IRQ(gic_spi(162)),
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};
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/* LEDS */
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static struct gpio_led koelsch_leds[] = {
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{
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@ -141,6 +156,15 @@ static const struct pinctrl_map koelsch_pinctrl_map[] = {
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"du_sync", "du"),
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PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
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"du_clk_out_0", "du"),
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/* Ether */
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PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
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"eth_link", "eth"),
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PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
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"eth_mdio", "eth"),
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PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
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"eth_rmii", "eth"),
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PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
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"intc_irq0", "intc"),
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/* SCIF0 (CN19: DEBUG SERIAL0) */
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PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7791",
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"scif0_data_d", "scif0"),
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@ -156,6 +180,10 @@ static void __init koelsch_add_standard_devices(void)
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ARRAY_SIZE(koelsch_pinctrl_map));
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r8a7791_pinmux_init();
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r8a7791_add_standard_devices();
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platform_device_register_resndata(&platform_bus, "r8a7791-ether", -1,
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ether_resources,
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ARRAY_SIZE(ether_resources),
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ðer_pdata, sizeof(ether_pdata));
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platform_device_register_data(&platform_bus, "leds-gpio", -1,
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&koelsch_leds_pdata,
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sizeof(koelsch_leds_pdata));
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@ -166,6 +194,32 @@ static void __init koelsch_add_standard_devices(void)
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koelsch_add_du_device();
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}
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/*
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* Ether LEDs on the Koelsch board are named LINK and ACTIVE which corresponds
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* to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits
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* 14-15. We have to set them back to 01 from the default 00 value each time
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* the PHY is reset. It's also important because the PHY's LED0 signal is
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* connected to SoC's ETH_LINK signal and in the PHY's default mode it will
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* bounce on and off after each packet, which we apparently want to avoid.
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*/
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static int koelsch_ksz8041_fixup(struct phy_device *phydev)
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{
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u16 phyctrl1 = phy_read(phydev, 0x1e);
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phyctrl1 &= ~0xc000;
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phyctrl1 |= 0x4000;
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return phy_write(phydev, 0x1e, phyctrl1);
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}
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static void __init koelsch_init(void)
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{
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koelsch_add_standard_devices();
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if (IS_ENABLED(CONFIG_PHYLIB))
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phy_register_fixup_for_id("r8a7791-ether-ff:01",
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koelsch_ksz8041_fixup);
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}
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static const char * const koelsch_boards_compat_dt[] __initconst = {
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"renesas,koelsch",
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NULL,
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@ -175,7 +229,7 @@ DT_MACHINE_START(KOELSCH_DT, "koelsch")
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.smp = smp_ops(r8a7791_smp_ops),
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.init_early = r8a7791_init_early,
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.init_time = rcar_gen2_timer_init,
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.init_machine = koelsch_add_standard_devices,
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.init_machine = koelsch_init,
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.init_late = shmobile_init_late,
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.dt_compat = koelsch_boards_compat_dt,
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MACHINE_END
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