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/*
* r8a7791 processor support
*
* Copyright (C) 2013 Renesas Electronics Corporation
* Copyright (C) 2013 Renesas Solutions Corp.
* Copyright (C) 2013 Magnus Damm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7791.h>
#include <asm/mach/arch.h>
#define SCIF_COMMON(scif_type, baseaddr, irq) \
.type = scif_type, \
.mapbase = baseaddr, \
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \
.irqs = SCIx_IRQ_MUXED(irq)
#define SCIFA_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_SCIFA, baseaddr, irq), \
.scbrr_algo_id = SCBRR_ALGO_4, \
.scscr = SCSCR_RE | SCSCR_TE, \
}
#define SCIFB_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_SCIFB, baseaddr, irq), \
.scbrr_algo_id = SCBRR_ALGO_4, \
.scscr = SCSCR_RE | SCSCR_TE, \
}
#define SCIF_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_SCIF, baseaddr, irq), \
.scbrr_algo_id = SCBRR_ALGO_2, \
.scscr = SCSCR_RE | SCSCR_TE, \
}
#define HSCIF_DATA(index, baseaddr, irq) \
[index] = { \
SCIF_COMMON(PORT_HSCIF, baseaddr, irq), \
.scbrr_algo_id = SCBRR_ALGO_6, \
.scscr = SCSCR_RE | SCSCR_TE, \
}
enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1,
SCIF2, SCIF3, SCIF4, SCIF5, SCIFA3, SCIFA4, SCIFA5 };
static const struct plat_sci_port scif[] __initconst = {
SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */
SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */
SCIFA_DATA(SCIFA2, 0xe6c60000, gic_spi(151)), /* SCIFA2 */
SCIF_DATA(SCIF0, 0xe6e60000, gic_spi(152)), /* SCIF0 */
SCIF_DATA(SCIF1, 0xe6e68000, gic_spi(153)), /* SCIF1 */
SCIF_DATA(SCIF2, 0xe6e58000, gic_spi(22)), /* SCIF2 */
SCIF_DATA(SCIF3, 0xe6ea8000, gic_spi(23)), /* SCIF3 */
SCIF_DATA(SCIF4, 0xe6ee0000, gic_spi(24)), /* SCIF4 */
SCIF_DATA(SCIF5, 0xe6ee8000, gic_spi(25)), /* SCIF5 */
SCIFA_DATA(SCIFA3, 0xe6c70000, gic_spi(29)), /* SCIFA3 */
SCIFA_DATA(SCIFA4, 0xe6c78000, gic_spi(30)), /* SCIFA4 */
SCIFA_DATA(SCIFA5, 0xe6c80000, gic_spi(31)), /* SCIFA5 */
};
static inline void r8a7791_register_scif(int idx)
{
platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
sizeof(struct plat_sci_port));
}
static const struct sh_timer_config cmt00_platform_data __initconst = {
.name = "CMT00",
.timer_bit = 0,
.clockevent_rating = 80,
};
static const struct resource cmt00_resources[] __initconst = {
DEFINE_RES_MEM(0xffca0510, 0x0c),
DEFINE_RES_MEM(0xffca0500, 0x04),
DEFINE_RES_IRQ(gic_spi(142)), /* CMT0_0 */
};
#define r8a7791_register_cmt(idx) \
platform_device_register_resndata(&platform_bus, "sh_cmt", \
idx, cmt##idx##_resources, \
ARRAY_SIZE(cmt##idx##_resources), \
&cmt##idx##_platform_data, \
sizeof(struct sh_timer_config))
void __init r8a7791_add_dt_devices(void)
{
r8a7791_register_scif(SCIFA0);
r8a7791_register_scif(SCIFA1);
r8a7791_register_scif(SCIFB0);
r8a7791_register_scif(SCIFB1);
r8a7791_register_scif(SCIFB2);
r8a7791_register_scif(SCIFA2);
r8a7791_register_scif(SCIF0);
r8a7791_register_scif(SCIF1);
r8a7791_register_scif(SCIF2);
r8a7791_register_scif(SCIF3);
r8a7791_register_scif(SCIF4);
r8a7791_register_scif(SCIF5);
r8a7791_register_scif(SCIFA3);
r8a7791_register_scif(SCIFA4);
r8a7791_register_scif(SCIFA5);
r8a7791_register_cmt(00);
}
void __init r8a7791_init_early(void)
{
#ifndef CONFIG_ARM_ARCH_TIMER
shmobile_setup_delay(1300, 2, 4); /* Cortex-A15 @ 1300MHz */
#endif
}
#ifdef CONFIG_USE_OF
static const char *r8a7791_boards_compat_dt[] __initdata = {
"renesas,r8a7791",
NULL,
};
DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
.init_early = r8a7791_init_early,
.dt_compat = r8a7791_boards_compat_dt,
MACHINE_END
#endif /* CONFIG_USE_OF */
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