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gerrit-public.fairphone.software / kernel / msm-4.9 / d5efd9cc9cf2e422d064c912c7d5d985f52c1b2c / . / arch / arm / mach-at91 / sama5.c
blob: 03dcb441f3d24662c3e7b00b8eea136426723a86 [file] [log] [blame]
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]1/*
Nicolas Ferrecac01722015-01-27 16:41:55 +0100[diff] [blame]2 * Setup code for SAMA5
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]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>
Boris BREZILLONd4d24c12013-10-11 14:43:31 +0200[diff] [blame]19#include <linux/clk-provider.h>
Wenyou Yangb8659752014-12-11 15:31:09 +0800[diff] [blame]20#include <linux/phy.h>
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]21
Nicolas Ferre6bd3e3f2015-01-27 15:51:34 +0100[diff] [blame]22#include <mach/hardware.h>
23
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]24#include <asm/setup.h>
25#include <asm/irq.h>
26#include <asm/mach/arch.h>
27#include <asm/mach/map.h>
28#include <asm/mach/irq.h>
29
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]30#include "generic.h"
31
Wenyou Yangb8659752014-12-11 15:31:09 +0800[diff] [blame]32static int ksz8081_phy_fixup(struct phy_device *phy)
33{
34 int value;
35
36 value = phy_read(phy, 0x16);
37 value &= ~0x20;
38 phy_write(phy, 0x16, value);
39
40 return 0;
41}
42
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]43static void __init sama5_dt_device_init(void)
44{
Wenyou Yangb8659752014-12-11 15:31:09 +0800[diff] [blame]45 if (of_machine_is_compatible("atmel,sama5d4ek") &&
46 IS_ENABLED(CONFIG_PHYLIB)) {
47 phy_register_fixup_for_id("fc028000.etherne:00",
48 ksz8081_phy_fixup);
49 }
50
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]51 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
Nicolas Ferread3fc3e2015-01-27 18:41:33 +0100[diff] [blame]52 at91sam9x5_pm_init();
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]53}
54
Nicolas Ferre726d32b2014-09-15 18:15:55 +0200[diff] [blame]55static const char *sama5_dt_board_compat[] __initconst = {
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]56 "atmel,sama5",
57 NULL
58};
59
Nicolas Ferread3fc3e2015-01-27 18:41:33 +0100[diff] [blame]60DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]61 /* Maintainer: Atmel */
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]62 .map_io = at91_map_io,
Ludovic Desroches8f4b4792013-03-22 13:24:12 +0000[diff] [blame]63 .init_machine = sama5_dt_device_init,
64 .dt_compat = sama5_dt_board_compat,
65MACHINE_END
Nicolas Ferre726d32b2014-09-15 18:15:55 +0200[diff] [blame]66
Nicolas Ferre6bd3e3f2015-01-27 15:51:34 +0100[diff] [blame]67static struct map_desc at91_io_desc[] __initdata = {
68 {
69 .virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_MPDDRC),
70 .pfn = __phys_to_pfn(SAMA5D4_BASE_MPDDRC),
71 .length = SZ_512,
72 .type = MT_DEVICE,
73 },
74 {
75 .virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_PMC),
76 .pfn = __phys_to_pfn(SAMA5D4_BASE_PMC),
77 .length = SZ_512,
78 .type = MT_DEVICE,
79 },
80 { /* On sama5d4, we use USART3 as serial console */
81 .virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_USART3),
82 .pfn = __phys_to_pfn(SAMA5D4_BASE_USART3),
83 .length = SZ_256,
84 .type = MT_DEVICE,
85 },
86 { /* A bunch of peripheral with fine grained IO space */
87 .virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_SYS2),
88 .pfn = __phys_to_pfn(SAMA5D4_BASE_SYS2),
89 .length = SZ_2K,
90 .type = MT_DEVICE,
91 },
92};
93
94static void __init sama5_alt_map_io(void)
95{
96 at91_alt_map_io();
97 iotable_init(at91_io_desc, ARRAY_SIZE(at91_io_desc));
98}
99
Nicolas Ferre726d32b2014-09-15 18:15:55 +0200[diff] [blame]100static const char *sama5_alt_dt_board_compat[] __initconst = {
101 "atmel,sama5d4",
102 NULL
103};
104
Nicolas Ferread3fc3e2015-01-27 18:41:33 +0100[diff] [blame]105DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5")
Nicolas Ferre726d32b2014-09-15 18:15:55 +0200[diff] [blame]106 /* Maintainer: Atmel */
Nicolas Ferre6bd3e3f2015-01-27 15:51:34 +0100[diff] [blame]107 .map_io = sama5_alt_map_io,
Nicolas Ferre726d32b2014-09-15 18:15:55 +0200[diff] [blame]108 .init_machine = sama5_dt_device_init,
109 .dt_compat = sama5_alt_dt_board_compat,
110 .l2c_aux_mask = ~0UL,
111MACHINE_END