56e0464980
Pull ARM SoC platform updates from Olof Johansson:
"New and/or improved SoC support for this release:
Marvell Berlin:
- Enable standard DT-based cpufreq
- Add CPU hotplug support
Freescale:
- Ethernet init for i.MX7D
- Suspend/resume support for i.MX6UL
Allwinner:
- Support for R8 chipset (used on NTC's $9 C.H.I.P board)
Mediatek:
- SMP support for some platforms
Uniphier:
- L2 support
- Cleaned up SMP support, etc.
plus a handful of other patches around above functionality, and a few
other smaller changes"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
ARM: uniphier: rework SMP operations to use trampoline code
ARM: uniphier: add outer cache support
Documentation: EXYNOS: Update bootloader interface on exynos542x
ARM: mvebu: add broken-idle option
ARM: orion5x: use mac_pton() helper
ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
ARM: sunxi: Add R8 support
ARM: digicolor: select pinctrl/gpio driver
arm: berlin: add CPU hotplug support
arm: berlin: use non-self-cleared reset register to reset cpu
ARM: mediatek: add smp bringup code
ARM: mediatek: enable gpt6 on boot up to make arch timer working
soc: mediatek: Fix random hang up issue while kernel init
soc: ti: qmss: make acc queue support optional in the driver
soc: ti: add firmware file name as part of the driver
Documentation: dt: soc: Add description for knav qmss driver
ARM: S3C64XX: Use PWM lookup table for mach-smartq
ARM: S3C64XX: Use PWM lookup table for mach-hmt
ARM: S3C64XX: Use PWM lookup table for mach-crag6410
ARM: S3C64XX: Use PWM lookup table for smdk6410
...
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* Device Tree support for Mediatek SoCs
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*
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* Copyright (c) 2014 MundoReader S.L.
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* Author: Matthias Brugger <matthias.bgg@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/init.h>
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#include <asm/mach/arch.h>
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#include <linux/of.h>
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#include <linux/clk-provider.h>
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#include <linux/clocksource.h>
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#define GPT6_CON_MT65xx 0x10008060
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#define GPT_ENABLE 0x31
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static void __init mediatek_timer_init(void)
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{
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void __iomem *gpt_base;
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if (of_machine_is_compatible("mediatek,mt6589") ||
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of_machine_is_compatible("mediatek,mt8135") ||
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of_machine_is_compatible("mediatek,mt8127")) {
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/* turn on GPT6 which ungates arch timer clocks */
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gpt_base = ioremap(GPT6_CON_MT65xx, 0x04);
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/* enable clock and set to free-run */
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writel(GPT_ENABLE, gpt_base);
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iounmap(gpt_base);
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}
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of_clk_init(NULL);
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clocksource_probe();
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};
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static const char * const mediatek_board_dt_compat[] = {
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"mediatek,mt6589",
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"mediatek,mt6592",
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"mediatek,mt8127",
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"mediatek,mt8135",
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NULL,
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};
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DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
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.dt_compat = mediatek_board_dt_compat,
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.init_time = mediatek_timer_init,
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MACHINE_END
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