2 * Setup code for SAMA5 Evaluation Kits with Device Tree support
4 * Copyright (C) 2013 Atmel,
5 * 2013 Ludovic Desroches <ludovic.desroches@atmel.com>
7 * Licensed under GPLv2 or later.
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>
16 #include <linux/of_irq.h>
17 #include <linux/of_platform.h>
18 #include <linux/phy.h>
20 #include <asm/setup.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/map.h>
24 #include <asm/mach/irq.h>
30 static const struct of_device_id irq_of_match
[] __initconst
= {
32 { .compatible
= "atmel,sama5d3-aic", .data
= at91_aic5_of_init
},
36 static void __init
at91_dt_init_irq(void)
38 of_irq_init(irq_of_match
);
41 static int ksz9021rn_phy_fixup(struct phy_device
*phy
)
45 #define GMII_RCCPSR 260
46 #define GMII_RRDPSR 261
50 /* Set delay values */
51 value
= GMII_RCCPSR
| 0x8000;
52 phy_write(phy
, GMII_ERCR
, value
);
54 phy_write(phy
, GMII_ERDWR
, value
);
55 value
= GMII_RRDPSR
| 0x8000;
56 phy_write(phy
, GMII_ERCR
, value
);
58 phy_write(phy
, GMII_ERDWR
, value
);
63 static void __init
sama5_dt_device_init(void)
65 if (of_machine_is_compatible("atmel,sama5d3xcm") &&
66 IS_ENABLED(CONFIG_PHYLIB
))
67 phy_register_fixup_for_uid(PHY_ID_KSZ9021
, MICREL_PHY_ID_MASK
,
70 of_platform_populate(NULL
, of_default_bus_match_table
, NULL
, NULL
);
73 static const char *sama5_dt_board_compat
[] __initdata
= {
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
,