M7350/kernel/arch/arm/mach-msm/board-dt.c
2024-09-09 08:52:07 +00:00

129 lines
3.1 KiB
C

/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_fdt.h>
#include <linux/mfd/wcd9xxx/core.h>
#include <asm/arch_timer.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
#include <mach/mpm.h>
#include <mach/qpnp-int.h>
#include <mach/msm_iomap.h>
#include <mach/scm.h>
#include "board-dt.h"
#define SCM_SVC_L2CC_PL310 16
#define L2CC_PL310_CTRL_ID 1
#define L2CC_PL310_ON 1
static void __init msm_dt_timer_init(void)
{
arch_timer_of_register();
}
struct sys_timer msm_dt_timer = {
.init = msm_dt_timer_init
};
static struct of_device_id irq_match[] __initdata = {
{ .compatible = "qcom,msm-qgic2", .data = gic_of_init, },
{ .compatible = "qcom,msm-gpio", .data = msm_gpio_of_init, },
{ .compatible = "qcom,spmi-pmic-arb", .data = qpnpint_of_init, },
{ .compatible = "qcom,wcd9xxx-irq", .data = wcd9xxx_irq_of_init, },
{}
};
static struct of_device_id mpm_match[] __initdata = {
{.compatible = "qcom,mpm-v2", },
{}
};
void __init msm_dt_init_irq(void)
{
struct device_node *node;
of_irq_init(irq_match);
node = of_find_matching_node(NULL, mpm_match);
WARN_ON(!node);
if (node)
of_mpm_init(node);
}
void __init msm_dt_init_irq_nompm(void)
{
of_irq_init(irq_match);
}
void __init msm_dt_init_irq_l2x0(void)
{
scm_call_atomic1(SCM_SVC_L2CC_PL310, L2CC_PL310_CTRL_ID, L2CC_PL310_ON);
l2x0_of_init(0, ~0UL);
msm_dt_init_irq();
}
int __init msm_scan_dt_map_imem(unsigned long node, const char *uname,
int depth, void *data)
{
unsigned int *imem_prop;
unsigned long imem_prop_len;
struct map_desc map;
int ret;
const char *compat = "qcom,msm-imem";
ret = of_flat_dt_is_compatible(node, compat);
if (!ret)
return 0;
imem_prop = of_get_flat_dt_prop(node, "reg",
&imem_prop_len);
if (!imem_prop) {
WARN(1, "IMEM reg field not found\n");
return 0;
}
if (imem_prop_len != (2*sizeof(u32))) {
WARN(1, "IMEM range malformed\n");
return 0;
}
map.virtual = (unsigned long)MSM_IMEM_BASE;
map.pfn = __phys_to_pfn(be32_to_cpu(imem_prop[0]));
map.length = be32_to_cpu(imem_prop[1]);
map.type = MT_DEVICE;
iotable_init(&map, 1);
pr_info("IMEM DT static mapping successful\n");
return 1;
}
void __init board_dt_populate(struct of_dev_auxdata *adata)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
/* Explicitly parent the /soc devices to the root node to preserve
* the kernel ABI (sysfs structure, etc) until userspace is updated
*/
of_platform_populate(of_find_node_by_path("/soc"),
of_default_bus_match_table, adata, NULL);
}