forked from Minki/linux
201e91091b
Old early platform device support is now sh-specific. Before moving on to implementing new early platform framework based on real platform devices, prefix all early platform symbols with 'sh_'. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Rich Felker <dalias@libc.org> Link: https://lore.kernel.org/r/20191003092913.10731-3-brgl@bgdev.pl Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* SH4-202 Setup
|
|
*
|
|
* Copyright (C) 2006 Paul Mundt
|
|
* Copyright (C) 2009 Magnus Damm
|
|
*/
|
|
#include <linux/platform_device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/serial_sci.h>
|
|
#include <linux/sh_timer.h>
|
|
#include <linux/sh_intc.h>
|
|
#include <linux/io.h>
|
|
#include <asm/platform_early.h>
|
|
|
|
static struct plat_sci_port scif0_platform_data = {
|
|
.scscr = SCSCR_REIE,
|
|
.type = PORT_SCIF,
|
|
};
|
|
|
|
static struct resource scif0_resources[] = {
|
|
DEFINE_RES_MEM(0xffe80000, 0x100),
|
|
DEFINE_RES_IRQ(evt2irq(0x700)),
|
|
DEFINE_RES_IRQ(evt2irq(0x720)),
|
|
DEFINE_RES_IRQ(evt2irq(0x760)),
|
|
DEFINE_RES_IRQ(evt2irq(0x740)),
|
|
};
|
|
|
|
static struct platform_device scif0_device = {
|
|
.name = "sh-sci",
|
|
.id = 0,
|
|
.resource = scif0_resources,
|
|
.num_resources = ARRAY_SIZE(scif0_resources),
|
|
.dev = {
|
|
.platform_data = &scif0_platform_data,
|
|
},
|
|
};
|
|
|
|
static struct sh_timer_config tmu0_platform_data = {
|
|
.channels_mask = 7,
|
|
};
|
|
|
|
static struct resource tmu0_resources[] = {
|
|
DEFINE_RES_MEM(0xffd80000, 0x30),
|
|
DEFINE_RES_IRQ(evt2irq(0x400)),
|
|
DEFINE_RES_IRQ(evt2irq(0x420)),
|
|
DEFINE_RES_IRQ(evt2irq(0x440)),
|
|
};
|
|
|
|
static struct platform_device tmu0_device = {
|
|
.name = "sh-tmu",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &tmu0_platform_data,
|
|
},
|
|
.resource = tmu0_resources,
|
|
.num_resources = ARRAY_SIZE(tmu0_resources),
|
|
};
|
|
|
|
static struct platform_device *sh4202_devices[] __initdata = {
|
|
&scif0_device,
|
|
&tmu0_device,
|
|
};
|
|
|
|
static int __init sh4202_devices_setup(void)
|
|
{
|
|
return platform_add_devices(sh4202_devices,
|
|
ARRAY_SIZE(sh4202_devices));
|
|
}
|
|
arch_initcall(sh4202_devices_setup);
|
|
|
|
static struct platform_device *sh4202_early_devices[] __initdata = {
|
|
&scif0_device,
|
|
&tmu0_device,
|
|
};
|
|
|
|
void __init plat_early_device_setup(void)
|
|
{
|
|
sh_early_platform_add_devices(sh4202_early_devices,
|
|
ARRAY_SIZE(sh4202_early_devices));
|
|
}
|
|
|
|
enum {
|
|
UNUSED = 0,
|
|
|
|
/* interrupt sources */
|
|
IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
|
|
HUDI, TMU0, TMU1, TMU2, RTC, SCIF, WDT,
|
|
};
|
|
|
|
static struct intc_vect vectors[] __initdata = {
|
|
INTC_VECT(HUDI, 0x600),
|
|
INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
|
|
INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
|
|
INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
|
|
INTC_VECT(RTC, 0x4c0),
|
|
INTC_VECT(SCIF, 0x700), INTC_VECT(SCIF, 0x720),
|
|
INTC_VECT(SCIF, 0x740), INTC_VECT(SCIF, 0x760),
|
|
INTC_VECT(WDT, 0x560),
|
|
};
|
|
|
|
static struct intc_prio_reg prio_registers[] __initdata = {
|
|
{ 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
|
|
{ 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, 0, 0, 0 } },
|
|
{ 0xffd0000c, 0, 16, 4, /* IPRC */ { 0, 0, SCIF, HUDI } },
|
|
{ 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
|
|
};
|
|
|
|
static DECLARE_INTC_DESC(intc_desc, "sh4-202", vectors, NULL,
|
|
NULL, prio_registers, NULL);
|
|
|
|
static struct intc_vect vectors_irlm[] __initdata = {
|
|
INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
|
|
INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
|
|
};
|
|
|
|
static DECLARE_INTC_DESC(intc_desc_irlm, "sh4-202_irlm", vectors_irlm, NULL,
|
|
NULL, prio_registers, NULL);
|
|
|
|
void __init plat_irq_setup(void)
|
|
{
|
|
register_intc_controller(&intc_desc);
|
|
}
|
|
|
|
#define INTC_ICR 0xffd00000UL
|
|
#define INTC_ICR_IRLM (1<<7)
|
|
|
|
void __init plat_irq_setup_pins(int mode)
|
|
{
|
|
switch (mode) {
|
|
case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
|
|
__raw_writew(__raw_readw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
|
|
register_intc_controller(&intc_desc_irlm);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|