Merge tag 'intc-part2-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-microblaze.git] / arch / arm / mach-at91 / board-dt-sama5.c
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 #include <linux/clk-provider.h>
20
21 #include <asm/setup.h>
22 #include <asm/irq.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/irq.h>
26
27 #include "at91_aic.h"
28 #include "generic.h"
29
30 static int ksz9021rn_phy_fixup(struct phy_device *phy)
31 {
32         int value;
33
34         /* Set delay values */
35         value = MICREL_KSZ9021_RGMII_CLK_CTRL_PAD_SCEW | 0x8000;
36         phy_write(phy, MICREL_KSZ9021_EXTREG_CTRL, value);
37         value = 0xF2F4;
38         phy_write(phy, MICREL_KSZ9021_EXTREG_DATA_WRITE, value);
39         value = MICREL_KSZ9021_RGMII_RX_DATA_PAD_SCEW | 0x8000;
40         phy_write(phy, MICREL_KSZ9021_EXTREG_CTRL, value);
41         value = 0x2222;
42         phy_write(phy, MICREL_KSZ9021_EXTREG_DATA_WRITE, value);
43
44         return 0;
45 }
46
47 static void __init sama5_dt_device_init(void)
48 {
49         if (of_machine_is_compatible("atmel,sama5d3xcm") &&
50             IS_ENABLED(CONFIG_PHYLIB))
51                 phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
52                         ksz9021rn_phy_fixup);
53
54         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
55 }
56
57 static const char *sama5_dt_board_compat[] __initdata = {
58         "atmel,sama5",
59         NULL
60 };
61
62 DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)")
63         /* Maintainer: Atmel */
64         .map_io         = at91_map_io,
65         .init_early     = at91_dt_initialize,
66         .init_machine   = sama5_dt_device_init,
67         .dt_compat      = sama5_dt_board_compat,
68 MACHINE_END