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linux/arch/arm/mach-shmobile/board-ag5evm.c
Guennadi Liakhovetski 6add9691cc ARM: mach-shmobile: add fixed voltage regulators to ag5evm 
On ag5evm provide 1.8V, 2.8V, and 3.3V supplies for its SD/MMC-card
interfaces and a dummy regulator for the smsc911x driver.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 22:39:00 +02:00

662 lines
16 KiB
C
Raw Blame History

/*
* arch/arm/mach-shmobile/board-ag5evm.c
*
* Copyright (C) 2010 Takashi Yoshii <yoshii.takashi.zj@renesas.com>
* Copyright (C) 2009 Yoshihiro Shimoda <shimoda.yoshihiro@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/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/serial_sci.h>
#include <linux/smsc911x.h>
#include <linux/gpio.h>
#include <linux/videodev2.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mmcif.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/sh_clk.h>
#include <linux/videodev2.h>
#include <video/sh_mobile_lcdc.h>
#include <video/sh_mipi_dsi.h>
#include <sound/sh_fsi.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/sh73a0.h>
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/traps.h>
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x"),
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
};
static struct resource smsc9220_resources[] = {
[0] = {
.start = 0x14000000,
.end = 0x14000000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = SH73A0_PINT0_IRQ(2), /* PINTA2 */
.flags = IORESOURCE_IRQ,
},
};
static struct smsc911x_platform_config smsc9220_platdata = {
.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
.phy_interface = PHY_INTERFACE_MODE_MII,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
};
static struct platform_device eth_device = {
.name = "smsc911x",
.id = 0,
.dev = {
.platform_data = &smsc9220_platdata,
},
.resource = smsc9220_resources,
.num_resources = ARRAY_SIZE(smsc9220_resources),
};
static struct sh_keysc_info keysc_platdata = {
.mode = SH_KEYSC_MODE_6,
.scan_timing = 3,
.delay = 100,
.keycodes = {
KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G,
KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N,
KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
KEY_SPACE, KEY_9, KEY_6, KEY_3, KEY_WAKEUP, KEY_RIGHT, \
KEY_COFFEE,
KEY_0, KEY_8, KEY_5, KEY_2, KEY_DOWN, KEY_ENTER, KEY_UP,
KEY_KPASTERISK, KEY_7, KEY_4, KEY_1, KEY_STOP, KEY_LEFT, \
KEY_COMPUTER,
},
};
static struct resource keysc_resources[] = {
[0] = {
.name = "KEYSC",
.start = 0xe61b0000,
.end = 0xe61b0098 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(71),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device keysc_device = {
.name = "sh_keysc",
.id = 0,
.num_resources = ARRAY_SIZE(keysc_resources),
.resource = keysc_resources,
.dev = {
.platform_data = &keysc_platdata,
},
};
/* FSI A */
static struct resource fsi_resources[] = {
[0] = {
.name = "FSI",
.start = 0xEC230000,
.end = 0xEC230400 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(146),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device fsi_device = {
.name = "sh_fsi2",
.id = -1,
.num_resources = ARRAY_SIZE(fsi_resources),
.resource = fsi_resources,
};
/* Fixed 1.8V regulator to be used by MMCIF */
static struct regulator_consumer_supply fixed1v8_power_consumers[] =
{
REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
REGULATOR_SUPPLY("vqmmc", "sh_mmcif.0"),
};
static struct resource sh_mmcif_resources[] = {
[0] = {
.name = "MMCIF",
.start = 0xe6bd0000,
.end = 0xe6bd00ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(141),
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = gic_spi(140),
.flags = IORESOURCE_IRQ,
},
};
static struct sh_mmcif_plat_data sh_mmcif_platdata = {
.sup_pclk = 0,
.ocr = MMC_VDD_165_195,
.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
.slave_id_tx = SHDMA_SLAVE_MMCIF_TX,
.slave_id_rx = SHDMA_SLAVE_MMCIF_RX,
};
static struct platform_device mmc_device = {
.name = "sh_mmcif",
.id = 0,
.dev = {
.dma_mask = NULL,
.coherent_dma_mask = 0xffffffff,
.platform_data = &sh_mmcif_platdata,
},
.num_resources = ARRAY_SIZE(sh_mmcif_resources),
.resource = sh_mmcif_resources,
};
/* IrDA */
static struct resource irda_resources[] = {
[0] = {
.start = 0xE6D00000,
.end = 0xE6D01FD4 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(95),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device irda_device = {
.name = "sh_irda",
.id = 0,
.resource = irda_resources,
.num_resources = ARRAY_SIZE(irda_resources),
};
static unsigned char lcd_backlight_seq[3][2] = {
{ 0x04, 0x07 },
{ 0x23, 0x80 },
{ 0x03, 0x01 },
};
static void lcd_backlight_on(void)
{
struct i2c_adapter *a;
struct i2c_msg msg;
int k;
a = i2c_get_adapter(1);
for (k = 0; a && k < 3; k++) {
msg.addr = 0x6d;
msg.buf = &lcd_backlight_seq[k][0];
msg.len = 2;
msg.flags = 0;
if (i2c_transfer(a, &msg, 1) != 1)
break;
}
}
static void lcd_backlight_reset(void)
{
gpio_set_value(GPIO_PORT235, 0);
mdelay(24);
gpio_set_value(GPIO_PORT235, 1);
}
/* LCDC0 */
static const struct fb_videomode lcdc0_modes[] = {
{
.name = "R63302(QHD)",
.xres = 544,
.yres = 961,
.left_margin = 72,
.right_margin = 600,
.hsync_len = 16,
.upper_margin = 8,
.lower_margin = 8,
.vsync_len = 2,
.sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT,
},
};
static struct sh_mobile_lcdc_info lcdc0_info = {
.clock_source = LCDC_CLK_PERIPHERAL,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.interface_type = RGB24,
.clock_divider = 1,
.flags = LCDC_FLAGS_DWPOL,
.fourcc = V4L2_PIX_FMT_RGB565,
.lcd_modes = lcdc0_modes,
.num_modes = ARRAY_SIZE(lcdc0_modes),
.panel_cfg = {
.width = 44,
.height = 79,
.display_on = lcd_backlight_on,
.display_off = lcd_backlight_reset,
},
}
};
static struct resource lcdc0_resources[] = {
[0] = {
.name = "LCDC0",
.start = 0xfe940000, /* P4-only space */
.end = 0xfe943fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = intcs_evt2irq(0x580),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device lcdc0_device = {
.name = "sh_mobile_lcdc_fb",
.num_resources = ARRAY_SIZE(lcdc0_resources),
.resource = lcdc0_resources,
.id = 0,
.dev = {
.platform_data = &lcdc0_info,
.coherent_dma_mask = ~0,
},
};
/* MIPI-DSI */
static struct resource mipidsi0_resources[] = {
[0] = {
.name = "DSI0",
.start = 0xfeab0000,
.end = 0xfeab3fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.name = "DSI0",
.start = 0xfeab4000,
.end = 0xfeab7fff,
.flags = IORESOURCE_MEM,
},
};
static int sh_mipi_set_dot_clock(struct platform_device *pdev,
void __iomem *base,
int enable)
{
struct clk *pck, *phy;
int ret;
pck = clk_get(&pdev->dev, "dsip_clk");
if (IS_ERR(pck)) {
ret = PTR_ERR(pck);
goto sh_mipi_set_dot_clock_pck_err;
}
phy = clk_get(&pdev->dev, "dsiphy_clk");
if (IS_ERR(phy)) {
ret = PTR_ERR(phy);
goto sh_mipi_set_dot_clock_phy_err;
}
if (enable) {
clk_set_rate(pck, clk_round_rate(pck, 24000000));
clk_set_rate(phy, clk_round_rate(pck, 510000000));
clk_enable(pck);
clk_enable(phy);
} else {
clk_disable(pck);
clk_disable(phy);
}
ret = 0;
clk_put(phy);
sh_mipi_set_dot_clock_phy_err:
clk_put(pck);
sh_mipi_set_dot_clock_pck_err:
return ret;
}
static struct sh_mipi_dsi_info mipidsi0_info = {
.data_format = MIPI_RGB888,
.lcd_chan = &lcdc0_info.ch[0],
.lane = 2,
.vsynw_offset = 20,
.clksrc = 1,
.flags = SH_MIPI_DSI_HSABM |
SH_MIPI_DSI_SYNC_PULSES_MODE |
SH_MIPI_DSI_HSbyteCLK,
.set_dot_clock = sh_mipi_set_dot_clock,
};
static struct platform_device mipidsi0_device = {
.name = "sh-mipi-dsi",
.num_resources = ARRAY_SIZE(mipidsi0_resources),
.resource = mipidsi0_resources,
.id = 0,
.dev = {
.platform_data = &mipidsi0_info,
},
};
/* Fixed 2.8V regulators to be used by SDHI0 */
static struct regulator_consumer_supply fixed2v8_power_consumers[] =
{
REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
};
/* SDHI0 */
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_USE_GPIO_CD,
.tmio_caps = MMC_CAP_SD_HIGHSPEED,
.tmio_ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
.cd_gpio = GPIO_PORT251,
};
static struct resource sdhi0_resources[] = {
[0] = {
.name = "SDHI0",
.start = 0xee100000,
.end = 0xee1000ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = gic_spi(83),
.flags = IORESOURCE_IRQ,
},
[2] = {
.name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = gic_spi(84),
.flags = IORESOURCE_IRQ,
},
[3] = {
.name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = gic_spi(85),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sdhi0_device = {
.name = "sh_mobile_sdhi",
.id = 0,
.num_resources = ARRAY_SIZE(sdhi0_resources),
.resource = sdhi0_resources,
.dev = {
.platform_data = &sdhi0_info,
},
};
/* Fixed 3.3V regulator to be used by SDHI1 */
static struct regulator_consumer_supply cn4_power_consumers[] =
{
REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"),
};
static struct regulator_init_data cn4_power_init_data = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(cn4_power_consumers),
.consumer_supplies = cn4_power_consumers,
};
static struct fixed_voltage_config cn4_power_info = {
.supply_name = "CN4 SD/MMC Vdd",
.microvolts = 3300000,
.gpio = GPIO_PORT114,
.enable_high = 1,
.init_data = &cn4_power_init_data,
};
static struct platform_device cn4_power = {
.name = "reg-fixed-voltage",
.id = 2,
.dev = {
.platform_data = &cn4_power_info,
},
};
static void ag5evm_sdhi1_set_pwr(struct platform_device *pdev, int state)
{
static int power_gpio = -EINVAL;
if (power_gpio < 0) {
int ret = gpio_request(GPIO_PORT114, "sdhi1_power");
if (!ret) {
power_gpio = GPIO_PORT114;
gpio_direction_output(power_gpio, 0);
}
}
/*
* If requesting the GPIO above failed, it means, that the regulator got
* probed and grabbed the GPIO, but we don't know, whether the sdhi
* driver already uses the regulator. If it doesn't, we have to toggle
* the GPIO ourselves, even though it is now owned by the fixed
* regulator driver. We have to live with the race in case the driver
* gets unloaded and the GPIO freed between these two steps.
*/
gpio_set_value(GPIO_PORT114, state);
}
static struct sh_mobile_sdhi_info sh_sdhi1_info = {
.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_HAS_IDLE_WAIT,
.tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
.tmio_ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.set_pwr = ag5evm_sdhi1_set_pwr,
};
static struct resource sdhi1_resources[] = {
[0] = {
.name = "SDHI1",
.start = 0xee120000,
.end = 0xee1200ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = gic_spi(87),
.flags = IORESOURCE_IRQ,
},
[2] = {
.name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = gic_spi(88),
.flags = IORESOURCE_IRQ,
},
[3] = {
.name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = gic_spi(89),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sdhi1_device = {
.name = "sh_mobile_sdhi",
.id = 1,
.dev = {
.platform_data = &sh_sdhi1_info,
},
.num_resources = ARRAY_SIZE(sdhi1_resources),
.resource = sdhi1_resources,
};
static struct platform_device *ag5evm_devices[] __initdata = {
&cn4_power,
&eth_device,
&keysc_device,
&fsi_device,
&mmc_device,
&irda_device,
&lcdc0_device,
&mipidsi0_device,
&sdhi0_device,
&sdhi1_device,
};
static void __init ag5evm_init(void)
{
regulator_register_always_on(0, "fixed-1.8V", fixed1v8_power_consumers,
ARRAY_SIZE(fixed1v8_power_consumers), 1800000);
regulator_register_always_on(1, "fixed-2.8V", fixed2v8_power_consumers,
ARRAY_SIZE(fixed2v8_power_consumers), 3300000);
regulator_register_fixed(3, dummy_supplies, ARRAY_SIZE(dummy_supplies));
sh73a0_pinmux_init();
/* enable SCIFA2 */
gpio_request(GPIO_FN_SCIFA2_TXD1, NULL);
gpio_request(GPIO_FN_SCIFA2_RXD1, NULL);
gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);
/* enable KEYSC */
gpio_request(GPIO_FN_KEYIN0_PU, NULL);
gpio_request(GPIO_FN_KEYIN1_PU, NULL);
gpio_request(GPIO_FN_KEYIN2_PU, NULL);
gpio_request(GPIO_FN_KEYIN3_PU, NULL);
gpio_request(GPIO_FN_KEYIN4_PU, NULL);
gpio_request(GPIO_FN_KEYIN5_PU, NULL);
gpio_request(GPIO_FN_KEYIN6_PU, NULL);
gpio_request(GPIO_FN_KEYIN7_PU, NULL);
gpio_request(GPIO_FN_KEYOUT0, NULL);
gpio_request(GPIO_FN_KEYOUT1, NULL);
gpio_request(GPIO_FN_KEYOUT2, NULL);
gpio_request(GPIO_FN_KEYOUT3, NULL);
gpio_request(GPIO_FN_KEYOUT4, NULL);
gpio_request(GPIO_FN_KEYOUT5, NULL);
gpio_request(GPIO_FN_PORT59_KEYOUT6, NULL);
gpio_request(GPIO_FN_PORT58_KEYOUT7, NULL);
gpio_request(GPIO_FN_KEYOUT8, NULL);
gpio_request(GPIO_FN_PORT149_KEYOUT9, NULL);
/* enable I2C channel 2 and 3 */
gpio_request(GPIO_FN_PORT236_I2C_SDA2, NULL);
gpio_request(GPIO_FN_PORT237_I2C_SCL2, NULL);
gpio_request(GPIO_FN_PORT248_I2C_SCL3, NULL);
gpio_request(GPIO_FN_PORT249_I2C_SDA3, NULL);
/* enable MMCIF */
gpio_request(GPIO_FN_MMCCLK0, NULL);
gpio_request(GPIO_FN_MMCCMD0_PU, NULL);
gpio_request(GPIO_FN_MMCD0_0_PU, NULL);
gpio_request(GPIO_FN_MMCD0_1_PU, NULL);
gpio_request(GPIO_FN_MMCD0_2_PU, NULL);
gpio_request(GPIO_FN_MMCD0_3_PU, NULL);
gpio_request(GPIO_FN_MMCD0_4_PU, NULL);
gpio_request(GPIO_FN_MMCD0_5_PU, NULL);
gpio_request(GPIO_FN_MMCD0_6_PU, NULL);
gpio_request(GPIO_FN_MMCD0_7_PU, NULL);
gpio_request(GPIO_PORT208, NULL); /* Reset */
gpio_direction_output(GPIO_PORT208, 1);
/* enable SMSC911X */
gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
gpio_direction_input(GPIO_PORT144);
gpio_request(GPIO_PORT145, NULL); /* RESET */
gpio_direction_output(GPIO_PORT145, 1);
/* FSI A */
gpio_request(GPIO_FN_FSIACK, NULL);
gpio_request(GPIO_FN_FSIAILR, NULL);
gpio_request(GPIO_FN_FSIAIBT, NULL);
gpio_request(GPIO_FN_FSIAISLD, NULL);
gpio_request(GPIO_FN_FSIAOSLD, NULL);
/* IrDA */
gpio_request(GPIO_FN_PORT241_IRDA_OUT, NULL);
gpio_request(GPIO_FN_PORT242_IRDA_IN, NULL);
gpio_request(GPIO_FN_PORT243_IRDA_FIRSEL, NULL);
/* LCD panel */
gpio_request(GPIO_PORT217, NULL); /* RESET */
gpio_direction_output(GPIO_PORT217, 0);
mdelay(1);
gpio_set_value(GPIO_PORT217, 1);
mdelay(100);
/* LCD backlight controller */
gpio_request(GPIO_PORT235, NULL); /* RESET */
gpio_direction_output(GPIO_PORT235, 0);
lcd_backlight_reset();
/* enable SDHI0 on CN15 [SD I/F] */
gpio_request(GPIO_FN_SDHIWP0, NULL);
gpio_request(GPIO_FN_SDHICMD0, NULL);
gpio_request(GPIO_FN_SDHICLK0, NULL);
gpio_request(GPIO_FN_SDHID0_3, NULL);
gpio_request(GPIO_FN_SDHID0_2, NULL);
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
/* enable SDHI1 on CN4 [WLAN I/F] */
gpio_request(GPIO_FN_SDHICLK1, NULL);
gpio_request(GPIO_FN_SDHICMD1_PU, NULL);
gpio_request(GPIO_FN_SDHID1_3_PU, NULL);
gpio_request(GPIO_FN_SDHID1_2_PU, NULL);
gpio_request(GPIO_FN_SDHID1_1_PU, NULL);
gpio_request(GPIO_FN_SDHID1_0_PU, NULL);
#ifdef CONFIG_CACHE_L2X0
/* Shared attribute override enable, 64K*8way */
l2x0_init(IOMEM(0xf0100000), 0x00460000, 0xc2000fff);
#endif
sh73a0_add_standard_devices();
platform_add_devices(ag5evm_devices, ARRAY_SIZE(ag5evm_devices));
}
MACHINE_START(AG5EVM, "ag5evm")
.map_io = sh73a0_map_io,
.init_early = sh73a0_add_early_devices,
.nr_irqs = NR_IRQS_LEGACY,
.init_irq = sh73a0_init_irq,
.handle_irq = gic_handle_irq,
.init_machine = ag5evm_init,
.init_late = shmobile_init_late,
.timer = &shmobile_timer,
MACHINE_END
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