| Ludovic Desroches | 8f4b479 | 2013-03-22 13:24:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Setup code for SAMA5 Evaluation Kits with Device Tree support |
| 3 | * |
| 4 | * Copyright (C) 2013 Atmel, |
| 5 | * 2013 Ludovic Desroches <ludovic.desroches@atmel.com> |
| 6 | * |
| 7 | * Licensed under GPLv2 or later. |
| 8 | */ |
| 9 | |
| 10 | #include <linux/types.h> |
| 11 | #include <linux/init.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/gpio.h> |
| 14 | #include <linux/micrel_phy.h> |
| 15 | #include <linux/of.h> |
| 16 | #include <linux/of_irq.h> |
| 17 | #include <linux/of_platform.h> |
| 18 | #include <linux/phy.h> |
| 19 | |
| 20 | #include <asm/setup.h> |
| 21 | #include <asm/irq.h> |
| 22 | #include <asm/mach/arch.h> |
| 23 | #include <asm/mach/map.h> |
| 24 | #include <asm/mach/irq.h> |
| 25 | |
| 26 | #include "at91_aic.h" |
| 27 | #include "generic.h" |
| 28 | |
| 29 | |
| 30 | static const struct of_device_id irq_of_match[] __initconst = { |
| 31 | |
| 32 | { .compatible = "atmel,sama5d3-aic", .data = at91_aic5_of_init }, |
| 33 | { /*sentinel*/ } |
| 34 | }; |
| 35 | |
| 36 | static void __init at91_dt_init_irq(void) |
| 37 | { |
| 38 | of_irq_init(irq_of_match); |
| 39 | } |
| 40 | |
| 41 | static int ksz9021rn_phy_fixup(struct phy_device *phy) |
| 42 | { |
| 43 | int value; |
| 44 | |
| 45 | #define GMII_RCCPSR 260 |
| 46 | #define GMII_RRDPSR 261 |
| 47 | #define GMII_ERCR 11 |
| 48 | #define GMII_ERDWR 12 |
| 49 | |
| 50 | /* Set delay values */ |
| 51 | value = GMII_RCCPSR | 0x8000; |
| 52 | phy_write(phy, GMII_ERCR, value); |
| 53 | value = 0xF2F4; |
| 54 | phy_write(phy, GMII_ERDWR, value); |
| 55 | value = GMII_RRDPSR | 0x8000; |
| 56 | phy_write(phy, GMII_ERCR, value); |
| 57 | value = 0x2222; |
| 58 | phy_write(phy, GMII_ERDWR, value); |
| 59 | |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | static void __init sama5_dt_device_init(void) |
| 64 | { |
| Alexandre Belloni | 0580ed3 | 2013-06-05 09:50:43 +0000 | [diff] [blame] | 65 | if (of_machine_is_compatible("atmel,sama5d3xcm") && |
| 66 | IS_ENABLED(CONFIG_PHYLIB)) |
| Ludovic Desroches | 8f4b479 | 2013-03-22 13:24:12 +0000 | [diff] [blame] | 67 | phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK, |
| 68 | ksz9021rn_phy_fixup); |
| 69 | |
| 70 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| 71 | } |
| 72 | |
| 73 | static const char *sama5_dt_board_compat[] __initdata = { |
| 74 | "atmel,sama5", |
| 75 | NULL |
| 76 | }; |
| 77 | |
| 78 | DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)") |
| 79 | /* Maintainer: Atmel */ |
| 80 | .init_time = at91sam926x_pit_init, |
| 81 | .map_io = at91_map_io, |
| 82 | .handle_irq = at91_aic5_handle_irq, |
| 83 | .init_early = at91_dt_initialize, |
| 84 | .init_irq = at91_dt_init_irq, |
| 85 | .init_machine = sama5_dt_device_init, |
| 86 | .dt_compat = sama5_dt_board_compat, |
| 87 | MACHINE_END |