board-bockw-reference.c
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/*
* Bock-W board support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* 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/of_platform.h>
#include <mach/common.h>
#include <mach/r8a7778.h>
#include <asm/mach/arch.h>
/*
* see board-bock.c for checking detail of dip-switch
*/
#define FPGA 0x18200000
#define IRQ0MR 0x30
#define COMCTLR 0x101c
#define PFC 0xfffc0000
#define PUPR4 0x110
static void __init bockw_init(void)
{
void __iomem *fpga;
void __iomem *pfc;
r8a7778_clock_init();
r8a7778_init_irq_extpin_dt(1);
r8a7778_add_dt_devices();
fpga = ioremap_nocache(FPGA, SZ_1M);
if (fpga) {
/*
* CAUTION
*
* IRQ0/1 is cascaded interrupt from FPGA.
* it should be cared in the future
* Now, it is assuming IRQ0 was used only from SMSC.
*/
u16 val = ioread16(fpga + IRQ0MR);
val &= ~(1 << 4); /* enable SMSC911x */
iowrite16(val, fpga + IRQ0MR);
iounmap(fpga);
}
pfc = ioremap_nocache(PFC, 0x200);
if (pfc) {
/*
* FIXME
*
* SDHI CD/WP pin needs pull-up
*/
iowrite32(ioread32(pfc + PUPR4) | (3 << 26), pfc + PUPR4);
iounmap(pfc);
}
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *bockw_boards_compat_dt[] __initdata = {
"renesas,bockw-reference",
NULL,
};
DT_MACHINE_START(BOCKW_DT, "bockw")
.init_early = r8a7778_init_delay,
.init_irq = r8a7778_init_irq_dt,
.init_machine = bockw_init,
.dt_compat = bockw_boards_compat_dt,
MACHINE_END