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8711613252
Add MMCIF support to the APE6EVM board in PIO mode only. Power supply is fixed for now, eventually support for the tps80032 regulator, also supplying both VDD and VccQ to the MMCIF slot should be added to APE6EVM. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/*
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* APE6EVM board support
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*
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* Copyright (C) 2013 Renesas Solutions Corp.
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* Copyright (C) 2013 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/sh_mmcif.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/machine.h>
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#include <linux/sh_clk.h>
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#include <linux/smsc911x.h>
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#include <mach/common.h>
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#include <mach/irqs.h>
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#include <mach/r8a73a4.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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/* Dummy supplies, where voltage doesn't matter */
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static struct regulator_consumer_supply dummy_supplies[] = {
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REGULATOR_SUPPLY("vddvario", "smsc911x"),
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REGULATOR_SUPPLY("vdd33a", "smsc911x"),
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};
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/* SMSC LAN9220 */
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static const struct resource lan9220_res[] = {
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DEFINE_RES_MEM(0x08000000, 0x1000),
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{
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.start = irq_pin(40), /* IRQ40 */
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
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},
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};
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static const struct smsc911x_platform_config lan9220_data = {
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.flags = SMSC911X_USE_32BIT,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
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};
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/*
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* On APE6EVM power is supplied to MMCIF by a tps80032 regulator. For now we
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* model a VDD supply to MMCIF, using a fixed 3.3V regulator.
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*/
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static struct regulator_consumer_supply fixed3v3_power_consumers[] =
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{
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REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
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};
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/* MMCIF */
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static struct sh_mmcif_plat_data mmcif0_pdata = {
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.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
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};
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static struct resource mmcif0_resources[] = {
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DEFINE_RES_MEM_NAMED(0xee200000, 0x100, "MMCIF0"),
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DEFINE_RES_IRQ(gic_spi(169)),
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};
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static const struct pinctrl_map ape6evm_pinctrl_map[] = {
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/* SCIFA0 console */
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PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
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"scifa0_data", "scifa0"),
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/* SMSC */
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PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
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"irqc_irq40", "irqc"),
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/* MMCIF0 */
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
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"mmc0_data8", "mmc0"),
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
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"mmc0_ctrl", "mmc0"),
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};
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static void __init ape6evm_add_standard_devices(void)
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{
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struct clk *parent;
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struct clk *mp;
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r8a73a4_clock_init();
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/* MP clock parent = extal2 */
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parent = clk_get(NULL, "extal2");
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mp = clk_get(NULL, "mp");
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BUG_ON(IS_ERR(parent) || IS_ERR(mp));
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clk_set_parent(mp, parent);
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clk_put(parent);
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clk_put(mp);
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pinctrl_register_mappings(ape6evm_pinctrl_map,
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ARRAY_SIZE(ape6evm_pinctrl_map));
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r8a73a4_pinmux_init();
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r8a73a4_add_standard_devices();
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/* LAN9220 ethernet */
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gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
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regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
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platform_device_register_resndata(&platform_bus, "smsc911x", -1,
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lan9220_res, ARRAY_SIZE(lan9220_res),
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&lan9220_data, sizeof(lan9220_data));
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regulator_register_always_on(1, "fixed-3.3V", fixed3v3_power_consumers,
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ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
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platform_device_register_resndata(&platform_bus, "sh_mmcif", 0,
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mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
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&mmcif0_pdata, sizeof(mmcif0_pdata));
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}
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static const char *ape6evm_boards_compat_dt[] __initdata = {
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"renesas,ape6evm",
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NULL,
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};
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DT_MACHINE_START(APE6EVM_DT, "ape6evm")
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.init_early = r8a73a4_init_delay,
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.init_time = shmobile_timer_init,
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.init_machine = ape6evm_add_standard_devices,
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.dt_compat = ape6evm_boards_compat_dt,
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MACHINE_END
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