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/*
* SH generic board support, using device tree
*
* Copyright (C) 2015-2016 Smart Energy Instruments, Inc.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_fdt.h>
#include <linux/of_iommu.h>
#include <linux/clocksource.h>
#include <linux/irqchip.h>
#include <linux/clk-provider.h>
#include <asm/machvec.h>
#include <asm/rtc.h>
static void noop(void)
{
}
static int noopi(void)
{
return 0;
}
static void __init sh_of_mem_reserve(void)
{
early_init_fdt_reserve_self();
early_init_fdt_scan_reserved_mem();
}
static void __init sh_of_time_init(void)
{
pr_info("SH generic board support: scanning for clocksource devices\n");
clocksource_probe();
}
static void __init sh_of_setup(char **cmdline_p)
{
unflatten_device_tree();
board_time_init = sh_of_time_init;
sh_mv.mv_name = of_flat_dt_get_machine_name();
if (!sh_mv.mv_name)
sh_mv.mv_name = "Unknown SH model";
/* FIXME: register smp ops to use dt to find cpus, use
* cpu enable-method, and use irq controller's ipi
* functions. */
}
static int sh_of_irq_demux(int irq)
{
/* FIXME: eventually this should not be used at all;
* the interrupt controller should set_handle_irq(). */
return irq;
}
static void __init sh_of_init_irq(void)
{
pr_info("SH generic board support: scanning for interrupt controllers\n");
irqchip_init();
}
static int __init sh_of_clk_init(void)
{
#ifdef CONFIG_COMMON_CLK
/* Disabled pending move to COMMON_CLK framework. */
pr_info("SH generic board support: scanning for clk providers\n");
of_clk_init(NULL);
#endif
return 0;
}
static struct sh_machine_vector __initmv sh_of_generic_mv = {
.mv_setup = sh_of_setup,
.mv_name = "devicetree", /* replaced by DT root's model */
.mv_irq_demux = sh_of_irq_demux,
.mv_init_irq = sh_of_init_irq,
.mv_clk_init = sh_of_clk_init,
.mv_mode_pins = noopi,
.mv_mem_init = noop,
.mv_mem_reserve = sh_of_mem_reserve,
};
struct sh_clk_ops;
void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx)
{
}
void __init plat_irq_setup(void)
{
}
static int __init sh_of_device_init(void)
{
pr_info("SH generic board support: populating platform devices\n");
if (of_have_populated_dt()) {
of_iommu_init();
of_platform_populate(NULL, of_default_bus_match_table,
NULL, NULL);
} else {
pr_crit("Device tree not populated\n");
}
return 0;
}
arch_initcall_sync(sh_of_device_init);
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