mirror of https://gitee.com/openkylin/linux.git
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* Abilis Systems TB10x platform initialisation
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*
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* Copyright (C) Abilis Systems 2012
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*
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* Author: Christian Ruppert <christian.ruppert@abilis.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 version 2 as
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* published by the Free Software Foundation.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/of_platform.h>
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#include <linux/clk-provider.h>
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#include <linux/pinctrl/consumer.h>
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#include <asm/mach_desc.h>
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static void __init tb10x_platform_init(void)
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{
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of_clk_init(NULL);
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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}
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static void __init tb10x_platform_late_init(void)
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{
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struct device_node *dn;
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/*
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* Pinctrl documentation recommends setting up the iomux here for
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* all modules which don't require control over the pins themselves.
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* Modules which need this kind of assistance are compatible with
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* "abilis,simple-pinctrl", i.e. we can easily iterate over them.
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* TODO: Does this recommended method work cleanly with pins required
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* by modules?
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*/
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for_each_compatible_node(dn, NULL, "abilis,simple-pinctrl") {
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struct platform_device *pd = of_find_device_by_node(dn);
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struct pinctrl *pctl;
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pctl = pinctrl_get_select(&pd->dev, "abilis,simple-default");
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if (IS_ERR(pctl)) {
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int ret = PTR_ERR(pctl);
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dev_err(&pd->dev, "Could not set up pinctrl: %d\n",
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ret);
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}
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}
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}
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static const char *tb10x_compat[] __initdata = {
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"abilis,arc-tb10x",
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NULL,
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};
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MACHINE_START(TB10x, "tb10x")
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.dt_compat = tb10x_compat,
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.init_machine = tb10x_platform_init,
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.init_late = tb10x_platform_late_init,
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MACHINE_END
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