mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 16:36:41 +07:00
ce4c6f9b59
It adds gpio support for device tree boot. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
/*
|
|
* Copyright 2012 Freescale Semiconductor, Inc.
|
|
* Copyright 2012 Linaro Ltd.
|
|
*
|
|
* The code contained herein is licensed under the GNU General Public
|
|
* License. You may obtain a copy of the GNU General Public License
|
|
* Version 2 or later at the following locations:
|
|
*
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*/
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/clkdev.h>
|
|
#include <linux/err.h>
|
|
#include <linux/init.h>
|
|
#include <linux/init.h>
|
|
#include <linux/irqdomain.h>
|
|
#include <linux/of_irq.h>
|
|
#include <linux/of_platform.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <mach/common.h>
|
|
|
|
static int __init mxs_icoll_add_irq_domain(struct device_node *np,
|
|
struct device_node *interrupt_parent)
|
|
{
|
|
irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init mxs_gpio_add_irq_domain(struct device_node *np,
|
|
struct device_node *interrupt_parent)
|
|
{
|
|
static int gpio_irq_base = MXS_GPIO_IRQ_START;
|
|
|
|
irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
|
|
gpio_irq_base += 32;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id mxs_irq_match[] __initconst = {
|
|
{ .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
|
|
{ .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
static void __init mxs_dt_init_irq(void)
|
|
{
|
|
icoll_init_irq();
|
|
of_irq_init(mxs_irq_match);
|
|
}
|
|
|
|
static void __init imx23_timer_init(void)
|
|
{
|
|
mx23_clocks_init();
|
|
}
|
|
|
|
static struct sys_timer imx23_timer = {
|
|
.init = imx23_timer_init,
|
|
};
|
|
|
|
static void __init imx28_timer_init(void)
|
|
{
|
|
mx28_clocks_init();
|
|
}
|
|
|
|
static struct sys_timer imx28_timer = {
|
|
.init = imx28_timer_init,
|
|
};
|
|
|
|
static void __init imx28_evk_init(void)
|
|
{
|
|
struct clk *clk;
|
|
|
|
/* Enable fec phy clock */
|
|
clk = clk_get_sys("enet_out", NULL);
|
|
if (!IS_ERR(clk))
|
|
clk_prepare_enable(clk);
|
|
}
|
|
|
|
static void __init mxs_machine_init(void)
|
|
{
|
|
if (of_machine_is_compatible("fsl,imx28-evk"))
|
|
imx28_evk_init();
|
|
|
|
of_platform_populate(NULL, of_default_bus_match_table,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static const char *imx23_dt_compat[] __initdata = {
|
|
"fsl,imx23-evk",
|
|
"fsl,imx23",
|
|
NULL,
|
|
};
|
|
|
|
static const char *imx28_dt_compat[] __initdata = {
|
|
"fsl,imx28-evk",
|
|
"fsl,imx28",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
|
|
.map_io = mx23_map_io,
|
|
.init_irq = mxs_dt_init_irq,
|
|
.timer = &imx23_timer,
|
|
.init_machine = mxs_machine_init,
|
|
.dt_compat = imx23_dt_compat,
|
|
.restart = mxs_restart,
|
|
MACHINE_END
|
|
|
|
DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
|
|
.map_io = mx28_map_io,
|
|
.init_irq = mxs_dt_init_irq,
|
|
.timer = &imx28_timer,
|
|
.init_machine = mxs_machine_init,
|
|
.dt_compat = imx28_dt_compat,
|
|
.restart = mxs_restart,
|
|
MACHINE_END
|