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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Device Tree support for Rockchip SoCs
*
* Copyright (c) 2013 MundoReader S.L.
* Author: Heiko Stuebner <heiko@sntech.de>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_clk.h>
#include <linux/clocksource.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "core.h"
#include "pm.h"
#define RK3288_TIMER6_7_PHYS 0xff810000
static void __init rockchip_timer_init(void)
{
if (of_machine_is_compatible("rockchip,rk3288")) {
void __iomem *reg_base;
/*
* Most/all uboot versions for rk3288 don't enable timer7
* which is needed for the architected timer to work.
* So make sure it is running during early boot.
*/
reg_base = ioremap(RK3288_TIMER6_7_PHYS, SZ_16K);
if (reg_base) {
writel(0, reg_base + 0x30);
writel(0xffffffff, reg_base + 0x20);
writel(0xffffffff, reg_base + 0x24);
writel(1, reg_base + 0x30);
dsb();
iounmap(reg_base);
} else {
pr_err("rockchip: could not map timer7 registers\n");
}
}
of_clk_init(NULL);
timer_probe();
}
static void __init rockchip_dt_init(void)
{
rockchip_suspend_init();
}
static const char * const rockchip_board_dt_compat[] = {
"rockchip,rk2928",
"rockchip,rk3066a",
"rockchip,rk3066b",
"rockchip,rk3188",
"rockchip,rk3228",
"rockchip,rk3288",
"rockchip,rv1108",
NULL,
};
DT_MACHINE_START(ROCKCHIP_DT, "Rockchip (Device Tree)")
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
.init_time = rockchip_timer_init,
.dt_compat = rockchip_board_dt_compat,
.init_machine = rockchip_dt_init,
MACHINE_END
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