linux/arch/arm/mach-imx/mach-vf610.c
Peng Fan d2199b3487 ARM: imx: use device_initcall for imx_soc_device_init
This is preparation to move imx_soc_device_init to drivers/soc/imx/

There is no reason to must put dt devices under /sys/devices/soc0,
they could also be under /sys/devices/platform, so we could
pass NULL as parent when calling of_platform_default_populate.

Following soc-imx8.c soc-imx-scu.c using device_initcall, need
to change return type to int type for imx_soc_device_init.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 23:03:42 +08:00

72 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2012-2013 Freescale Semiconductor, Inc.
*/
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <linux/irqchip.h>
#include <asm/mach/arch.h>
#include <asm/hardware/cache-l2x0.h>
#include "common.h"
#include "hardware.h"
#define MSCM_CPxCOUNT 0x00c
#define MSCM_CPxCFG1 0x014
static void __init vf610_detect_cpu(void)
{
struct device_node *np;
u32 cpxcount, cpxcfg1;
unsigned int cpu_type;
void __iomem *mscm;
np = of_find_compatible_node(NULL, NULL, "fsl,vf610-mscm-cpucfg");
if (WARN_ON(!np))
return;
mscm = of_iomap(np, 0);
of_node_put(np);
if (WARN_ON(!mscm))
return;
cpxcount = readl_relaxed(mscm + MSCM_CPxCOUNT);
cpxcfg1 = readl_relaxed(mscm + MSCM_CPxCFG1);
iounmap(mscm);
cpu_type = cpxcount ? MXC_CPU_VF600 : MXC_CPU_VF500;
if (cpxcfg1)
cpu_type |= MXC_CPU_VFx10;
mxc_set_cpu_type(cpu_type);
}
static void __init vf610_init_machine(void)
{
vf610_detect_cpu();
of_platform_default_populate(NULL, NULL, NULL);
}
static const char * const vf610_dt_compat[] __initconst = {
"fsl,vf500",
"fsl,vf510",
"fsl,vf600",
"fsl,vf610",
"fsl,vf610m4",
NULL,
};
DT_MACHINE_START(VYBRID_VF610, "Freescale Vybrid VF5xx/VF6xx (Device Tree)")
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
.init_machine = vf610_init_machine,
.dt_compat = vf610_dt_compat,
MACHINE_END