| /* |
| * Setup code for SAMA5 Evaluation Kits with Device Tree support |
| * |
| * Copyright (C) 2013 Atmel, |
| * 2013 Ludovic Desroches <ludovic.desroches@atmel.com> |
| * |
| * Licensed under GPLv2 or later. |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/gpio.h> |
| #include <linux/micrel_phy.h> |
| #include <linux/of.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_platform.h> |
| #include <linux/phy.h> |
| |
| #include <asm/setup.h> |
| #include <asm/irq.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/irq.h> |
| |
| #include "at91_aic.h" |
| #include "generic.h" |
| |
| |
| static const struct of_device_id irq_of_match[] __initconst = { |
| |
| { .compatible = "atmel,sama5d3-aic", .data = at91_aic5_of_init }, |
| { /*sentinel*/ } |
| }; |
| |
| static void __init at91_dt_init_irq(void) |
| { |
| of_irq_init(irq_of_match); |
| } |
| |
| static int ksz9021rn_phy_fixup(struct phy_device *phy) |
| { |
| int value; |
| |
| /* Set delay values */ |
| value = MICREL_KSZ9021_RGMII_CLK_CTRL_PAD_SCEW | 0x8000; |
| phy_write(phy, MICREL_KSZ9021_EXTREG_CTRL, value); |
| value = 0xF2F4; |
| phy_write(phy, MICREL_KSZ9021_EXTREG_DATA_WRITE, value); |
| value = MICREL_KSZ9021_RGMII_RX_DATA_PAD_SCEW | 0x8000; |
| phy_write(phy, MICREL_KSZ9021_EXTREG_CTRL, value); |
| value = 0x2222; |
| phy_write(phy, MICREL_KSZ9021_EXTREG_DATA_WRITE, value); |
| |
| return 0; |
| } |
| |
| static void __init sama5_dt_device_init(void) |
| { |
| if (of_machine_is_compatible("atmel,sama5d3xcm") && |
| IS_ENABLED(CONFIG_PHYLIB)) |
| phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK, |
| ksz9021rn_phy_fixup); |
| |
| of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| } |
| |
| static const char *sama5_dt_board_compat[] __initdata = { |
| "atmel,sama5", |
| NULL |
| }; |
| |
| DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)") |
| /* Maintainer: Atmel */ |
| .init_time = at91sam926x_pit_init, |
| .map_io = at91_map_io, |
| .handle_irq = at91_aic5_handle_irq, |
| .init_early = at91_dt_initialize, |
| .init_irq = at91_dt_init_irq, |
| .init_machine = sama5_dt_device_init, |
| .dt_compat = sama5_dt_board_compat, |
| MACHINE_END |