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linux_dsm_epyc7002/arch/arm/mach-pxa/cm-x270.c
Linus Walleij f54005b508 mmc: pxa: Use GPIO descriptor for power 
After converting the PXA driver to use GPIO descriptors for
card detect and write protect it is relatively simple to
convert it to also use a descriptor for getting the optional
power control GPIO.

The polarity inversion flag can also go away from the platform
data since this is indicated in the GPIO machine descriptor
table.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-12-17 08:26:24 +01:00

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/*
* linux/arch/arm/mach-pxa/cm-x270.c
*
* Copyright (C) 2007, 2008 CompuLab, Ltd.
* Mike Rapoport <mike@compulab.co.il>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/delay.h>
#include <linux/platform_data/rtc-v3020.h>
#include <video/mbxfb.h>
#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/spi/libertas_spi.h>
#include "pxa27x.h"
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/mmc-pxamci.h>
#include "generic.h"
/* physical address if local-bus attached devices */
#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
/* GPIO IRQ usage */
#define GPIO83_MMC_IRQ (83)
#define CMX270_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO83_MMC_IRQ)
/* MMC power enable */
#define GPIO105_MMC_POWER (105)
/* WLAN GPIOS */
#define GPIO19_WLAN_STRAP (19)
#define GPIO102_WLAN_RST (102)
static unsigned long cmx270_pin_config[] = {
/* AC'97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO98_AC97_SYSCLK,
GPIO113_AC97_nRESET,
/* BTUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
/* STUART */
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* MCI controller */
GPIO32_MMC_CLK,
GPIO112_MMC_CMD,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO24_SSP1_SFRM,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
/* SSP2 */
GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
GPIO14_GPIO,
GPIO87_SSP2_TXD,
GPIO88_SSP2_RXD,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* SDRAM and local bus */
GPIO15_nCS_1,
GPIO78_nCS_2,
GPIO79_nCS_3,
GPIO80_nCS_4,
GPIO33_nCS_5,
GPIO49_nPWE,
GPIO18_RDY,
/* GPIO */
GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
GPIO53_GPIO, /* PC card reset */
GPIO102_GPIO, /* WLAN reset */
/* NAND controls */
GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
GPIO89_GPIO, /* NAND Ready/Busy */
/* interrupts */
GPIO10_GPIO, /* DM9000 interrupt */
GPIO83_GPIO, /* MMC card detect */
GPIO95_GPIO, /* WLAN interrupt */
};
/* V3020 RTC */
#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
static struct resource cmx270_v3020_resource[] = {
[0] = {
.start = RTC_PHYS_BASE,
.end = RTC_PHYS_BASE + 4,
.flags = IORESOURCE_MEM,
},
};
struct v3020_platform_data cmx270_v3020_pdata = {
.leftshift = 16,
};
static struct platform_device cmx270_rtc_device = {
.name = "v3020",
.num_resources = ARRAY_SIZE(cmx270_v3020_resource),
.resource = cmx270_v3020_resource,
.id = -1,
.dev = {
.platform_data = &cmx270_v3020_pdata,
}
};
static void __init cmx270_init_rtc(void)
{
platform_device_register(&cmx270_rtc_device);
}
#else
static inline void cmx270_init_rtc(void) {}
#endif
/* 2700G graphics */
#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
static u64 fb_dma_mask = ~(u64)0;
static struct resource cmx270_2700G_resource[] = {
/* frame buffer memory including ODFB and External SDRAM */
[0] = {
.start = PXA_CS2_PHYS,
.end = PXA_CS2_PHYS + 0x01ffffff,
.flags = IORESOURCE_MEM,
},
/* Marathon registers */
[1] = {
.start = PXA_CS2_PHYS + 0x03fe0000,
.end = PXA_CS2_PHYS + 0x03ffffff,
.flags = IORESOURCE_MEM,
},
};
static unsigned long cmx270_marathon_on[] = {
GPIO58_GPIO,
GPIO59_GPIO,
GPIO60_GPIO,
GPIO61_GPIO,
GPIO62_GPIO,
GPIO63_GPIO,
GPIO64_GPIO,
GPIO65_GPIO,
GPIO66_GPIO,
GPIO67_GPIO,
GPIO68_GPIO,
GPIO69_GPIO,
GPIO70_GPIO,
GPIO71_GPIO,
GPIO72_GPIO,
GPIO73_GPIO,
GPIO74_GPIO,
GPIO75_GPIO,
GPIO76_GPIO,
GPIO77_GPIO,
};
static unsigned long cmx270_marathon_off[] = {
GPIOxx_LCD_TFT_16BPP,
};
static int cmx270_marathon_probe(struct fb_info *fb)
{
int gpio, err;
for (gpio = 58; gpio <= 77; gpio++) {
err = gpio_request(gpio, "LCD");
if (err)
return err;
gpio_direction_input(gpio);
}
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));
return 0;
}
static int cmx270_marathon_remove(struct fb_info *fb)
{
int gpio;
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
for (gpio = 58; gpio <= 77; gpio++)
gpio_free(gpio);
return 0;
}
static struct mbxfb_platform_data cmx270_2700G_data = {
.xres = {
.min = 240,
.max = 1200,
.defval = 640,
},
.yres = {
.min = 240,
.max = 1200,
.defval = 480,
},
.bpp = {
.min = 16,
.max = 32,
.defval = 16,
},
.memsize = 8*1024*1024,
.probe = cmx270_marathon_probe,
.remove = cmx270_marathon_remove,
};
static struct platform_device cmx270_2700G = {
.name = "mbx-fb",
.dev = {
.platform_data = &cmx270_2700G_data,
.dma_mask = &fb_dma_mask,
.coherent_dma_mask = 0xffffffff,
},
.num_resources = ARRAY_SIZE(cmx270_2700G_resource),
.resource = cmx270_2700G_resource,
.id = -1,
};
static void __init cmx270_init_2700G(void)
{
platform_device_register(&cmx270_2700G);
}
#else
static inline void cmx270_init_2700G(void) {}
#endif
/* PXA27x OHCI controller setup */
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static struct pxaohci_platform_data cmx270_ohci_platform_data = {
.port_mode = PMM_PERPORT_MODE,
.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
};
static void __init cmx270_init_ohci(void)
{
pxa_set_ohci_info(&cmx270_ohci_platform_data);
}
#else
static inline void cmx270_init_ohci(void) {}
#endif
#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
static struct pxamci_platform_data cmx270_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
};
static struct gpiod_lookup_table cmx270_mci_gpio_table = {
.dev_id = "pxa2xx-mci.0",
.table = {
/* Card detect on GPIO 83 */
GPIO_LOOKUP("gpio-pxa", GPIO83_MMC_IRQ, "cd", GPIO_ACTIVE_LOW),
/* Power on GPIO 105 */
GPIO_LOOKUP("gpio-pxa", GPIO105_MMC_POWER,
"power", GPIO_ACTIVE_LOW),
{ },
},
};
static void __init cmx270_init_mmc(void)
{
gpiod_add_lookup_table(&cmx270_mci_gpio_table);
pxa_set_mci_info(&cmx270_mci_platform_data);
}
#else
static inline void cmx270_init_mmc(void) {}
#endif
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master cm_x270_spi_info = {
.num_chipselect = 1,
.enable_dma = 1,
};
static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
.rx_threshold = 1,
.tx_threshold = 1,
.timeout = 1000,
.gpio_cs = 14,
};
static unsigned long cm_x270_libertas_pin_config[] = {
/* SSP2 */
GPIO19_SSP2_SCLK,
GPIO14_GPIO,
GPIO87_SSP2_TXD,
GPIO88_SSP2_RXD,
};
static int cm_x270_libertas_setup(struct spi_device *spi)
{
int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
if (err)
return err;
err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
if (err)
goto err_free_strap;
err = gpio_direction_output(GPIO102_WLAN_RST, 0);
if (err)
goto err_free_strap;
msleep(100);
err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
if (err)
goto err_free_strap;
msleep(100);
pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
gpio_set_value(GPIO102_WLAN_RST, 1);
msleep(100);
spi->bits_per_word = 16;
spi_setup(spi);
return 0;
err_free_strap:
gpio_free(GPIO19_WLAN_STRAP);
return err;
}
static int cm_x270_libertas_teardown(struct spi_device *spi)
{
gpio_set_value(GPIO102_WLAN_RST, 0);
gpio_free(GPIO102_WLAN_RST);
gpio_free(GPIO19_WLAN_STRAP);
return 0;
}
struct libertas_spi_platform_data cm_x270_libertas_pdata = {
.use_dummy_writes = 1,
.setup = cm_x270_libertas_setup,
.teardown = cm_x270_libertas_teardown,
};
static struct spi_board_info cm_x270_spi_devices[] __initdata = {
{
.modalias = "libertas_spi",
.max_speed_hz = 13000000,
.bus_num = 2,
.irq = PXA_GPIO_TO_IRQ(95),
.chip_select = 0,
.controller_data = &cm_x270_libertas_chip,
.platform_data = &cm_x270_libertas_pdata,
},
};
static void __init cmx270_init_spi(void)
{
pxa2xx_set_spi_info(2, &cm_x270_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
}
#else
static inline void cmx270_init_spi(void) {}
#endif
void __init cmx270_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
#ifdef CONFIG_PM
pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
#endif
cmx270_init_rtc();
cmx270_init_mmc();
cmx270_init_ohci();
cmx270_init_2700G();
cmx270_init_spi();
}
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