/*
* 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/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/smsc911x.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7778.h>
#include <asm/mach/arch.h>
/*
* CN9(Upper side) SCIF/RCAN selection
*
* 1,4 3,6
* SW40 SCIF RCAN
* SW41 SCIF RCAN
*/
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x"),
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
};
static struct smsc911x_platform_config smsc911x_data = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.flags = SMSC911X_USE_32BIT,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct resource smsc911x_resources[] = {
DEFINE_RES_MEM(0x18300000, 0x1000),
DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */
};
/* SDHI */
static struct sh_mobile_sdhi_info sdhi0_info = {
.tmio_caps = MMC_CAP_SD_HIGHSPEED,
.tmio_ocr_mask = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static struct sh_eth_plat_data ether_platform_data __initdata = {
.phy = 0x01,
.edmac_endian = EDMAC_LITTLE_ENDIAN,
.register_type = SH_ETH_REG_FAST_RCAR,
.phy_interface = PHY_INTERFACE_MODE_RMII,
/*
* Although the LINK signal is available on the board, it's connected to
* the link/activity LED output of the PHY, thus the link disappears and
* reappears after each packet. We'd be better off ignoring such signal
* and getting the link state from the PHY indirectly.
*/
.no_ether_link = 1,
};
static const struct pinctrl_map bockw_pinctrl_map[] = {
/* Ether */
PIN_MAP_MUX_GROUP_DEFAULT("sh-eth", "pfc-r8a7778",
"ether_rmii", "ether"),
/* SCIF0 */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",
"scif0_data_a", "scif0"),
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a7778",
"scif0_ctrl", "scif0"),
/* SDHI0 */
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7778",
"sdhi0", "sdhi0"),
};
#define FPGA 0x18200000
#define IRQ0MR 0x30
#define PFC 0xfffc0000
#define PUPR4 0x110
static void __init bockw_init(void)
{
void __iomem *base;
r8a7778_clock_init();
r8a7778_init_irq_extpin(1);
r8a7778_add_standard_devices();
r8a7778_add_ether_device(ðer_platform_data);
pinctrl_register_mappings(bockw_pinctrl_map,
ARRAY_SIZE(bockw_pinctrl_map));
r8a7778_pinmux_init();
/* for SMSC */
base = ioremap_nocache(FPGA, SZ_1M);
if (base) {
/*
* 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(base + IRQ0MR);
val &= ~(1 << 4); /* enable SMSC911x */
iowrite16(val, base + IRQ0MR);
iounmap(base);
regulator_register_fixed(0, dummy_supplies,
ARRAY_SIZE(dummy_supplies));
platform_device_register_resndata(
&platform_bus, "smsc911x", -1,
smsc911x_resources, ARRAY_SIZE(smsc911x_resources),
&smsc911x_data, sizeof(smsc911x_data));
}
/* for SDHI */
base = ioremap_nocache(PFC, 0x200);
if (base) {
/*
* FIXME
*
* SDHI CD/WP pin needs pull-up
*/
iowrite32(ioread32(base + PUPR4) | (3 << 26), base + PUPR4);
iounmap(base);
r8a7778_sdhi_init(0, &sdhi0_info);
}
}
static const char *bockw_boards_compat_dt[] __initdata = {
"renesas,bockw",
NULL,
};
DT_MACHINE_START(BOCKW_DT, "bockw")
.init_early = r8a7778_init_delay,
.init_irq = r8a7778_init_irq_dt,
.init_machine = bockw_init,
.init_time = shmobile_timer_init,
.dt_compat = bockw_boards_compat_dt,
MACHINE_END
