1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Device Tree support for Mediatek SoCs
 4 *
 5 * Copyright (c) 2014 MundoReader S.L.
 6 * Author: Matthias Brugger <matthias.bgg@gmail.com>
 7 */
 8#include <linux/init.h>
 9#include <linux/io.h>
10#include <asm/mach/arch.h>
11#include <linux/of.h>
12#include <linux/of_clk.h>
13#include <linux/clocksource.h>
14
15
16#define GPT6_CON_MT65xx 0x10008060
17#define GPT_ENABLE      0x31
18
19static void __init mediatek_timer_init(void)
20{
21	void __iomem *gpt_base;
22
23	if (of_machine_is_compatible("mediatek,mt6589") ||
24	    of_machine_is_compatible("mediatek,mt7623") ||
25	    of_machine_is_compatible("mediatek,mt8135") ||
26	    of_machine_is_compatible("mediatek,mt8127")) {
27		/* turn on GPT6 which ungates arch timer clocks */
28		gpt_base = ioremap(GPT6_CON_MT65xx, 0x04);
29
30		/* enable clock and set to free-run */
31		writel(GPT_ENABLE, gpt_base);
32		iounmap(gpt_base);
33	}
34
35	of_clk_init(NULL);
36	timer_probe();
37};
38
39static const char * const mediatek_board_dt_compat[] = {
40	"mediatek,mt2701",
41	"mediatek,mt6589",
42	"mediatek,mt6592",
43	"mediatek,mt7623",
44	"mediatek,mt7629",
45	"mediatek,mt8127",
46	"mediatek,mt8135",
47	NULL,
48};
49
50DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
51	.dt_compat	= mediatek_board_dt_compat,
52	.init_time	= mediatek_timer_init,
53MACHINE_END

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Device Tree support for Mediatek SoCs
 4 *
 5 * Copyright (c) 2014 MundoReader S.L.
 6 * Author: Matthias Brugger <matthias.bgg@gmail.com>
 7 */
 8#include <linux/init.h>
 9#include <linux/io.h>
10#include <asm/mach/arch.h>
11#include <linux/of.h>
12#include <linux/of_clk.h>
13#include <linux/clocksource.h>
14
15
16#define GPT6_CON_MT65xx 0x10008060
17#define GPT_ENABLE      0x31
18
19static void __init mediatek_timer_init(void)
20{
21	void __iomem *gpt_base;
22
23	if (of_machine_is_compatible("mediatek,mt6589") ||
24	    of_machine_is_compatible("mediatek,mt7623") ||
25	    of_machine_is_compatible("mediatek,mt8135") ||
26	    of_machine_is_compatible("mediatek,mt8127")) {
27		/* turn on GPT6 which ungates arch timer clocks */
28		gpt_base = ioremap(GPT6_CON_MT65xx, 0x04);
29
30		/* enable clock and set to free-run */
31		writel(GPT_ENABLE, gpt_base);
32		iounmap(gpt_base);
33	}
34
35	of_clk_init(NULL);
36	timer_probe();
37};
38
39static const char * const mediatek_board_dt_compat[] = {
40	"mediatek,mt2701",
41	"mediatek,mt6589",
42	"mediatek,mt6592",
43	"mediatek,mt7623",
44	"mediatek,mt7629",
45	"mediatek,mt8127",
46	"mediatek,mt8135",
47	NULL,
48};
49
50DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
51	.dt_compat	= mediatek_board_dt_compat,
52	.init_time	= mediatek_timer_init,
53MACHINE_END