linux-stable/arch/arm/mach-versatile/v2m.c
Arnd Bergmann d7445676e8 ARM: versatile: move integrator/realview/vexpress to versatile
These are all fairly small platforms by now, and they are
closely related. Just move them all into a single directory.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-04 10:22:37 +02:00

40 lines
832 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/of.h>
#include <linux/of_address.h>
#include <asm/mach/arch.h>
#include "vexpress.h"
#define SYS_FLAGSSET 0x030
#define SYS_FLAGSCLR 0x034
void vexpress_flags_set(u32 data)
{
static void __iomem *base;
if (!base) {
struct device_node *node = of_find_compatible_node(NULL, NULL,
"arm,vexpress-sysreg");
base = of_iomap(node, 0);
}
if (WARN_ON(!base))
return;
writel(~0, base + SYS_FLAGSCLR);
writel(data, base + SYS_FLAGSSET);
}
static const char * const v2m_dt_match[] __initconst = {
"arm,vexpress",
NULL,
};
DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
.dt_compat = v2m_dt_match,
.l2c_aux_val = 0x00400000,
.l2c_aux_mask = 0xfe0fffff,
.smp = smp_ops(vexpress_smp_dt_ops),
.smp_init = smp_init_ops(vexpress_smp_init_ops),
MACHINE_END