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e446630c96
linux/arch/arm/mach-pxa/zeus.c
Marc Zyngier e446630c96 Add hotplug support to mcp251x driver 
Chip model can now be selected directly by matching the modalias name
(instead of filling the .model field in platform_data), and allows the
module to be auto-loaded. Previous behaviour is of course still supported.

Convert the two in-tree users to this feature (icontrol & zeus).
Tested on an Zeus platform (mcp2515).

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Acked-by: Christian Pellegrin <chripell@fsfe.org>
Cc: Edwin Peer <epeer@tmtservices.co.za>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30 23:51:09 -07:00

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/*
* Support for the Arcom ZEUS.
*
* Copyright (C) 2006 Arcom Control Systems Ltd.
*
* Loosely based on Arcom's 2.6.16.28.
* Maintained by Marc Zyngier <maz@misterjones.org>
*
* 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/cpufreq.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/pm.h>
#include <linux/gpio.h>
#include <linux/serial_8250.h>
#include <linux/dm9000.h>
#include <linux/mmc/host.h>
#include <linux/spi/spi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/apm-emulation.h>
#include <linux/can/platform/mcp251x.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <plat/i2c.h>
#include <mach/pxa2xx-regs.h>
#include <mach/regs-uart.h>
#include <mach/ohci.h>
#include <mach/mmc.h>
#include <mach/pxa27x-udc.h>
#include <mach/udc.h>
#include <mach/pxafb.h>
#include <mach/pxa2xx_spi.h>
#include <mach/mfp-pxa27x.h>
#include <mach/pm.h>
#include <mach/audio.h>
#include <mach/arcom-pcmcia.h>
#include <mach/zeus.h>
#include "generic.h"
/*
* Interrupt handling
*/
static unsigned long zeus_irq_enabled_mask;
static const int zeus_isa_irqs[] = { 3, 4, 5, 6, 7, 10, 11, 12, };
static const int zeus_isa_irq_map[] = {
0, /* ISA irq #0, invalid */
0, /* ISA irq #1, invalid */
0, /* ISA irq #2, invalid */
1 << 0, /* ISA irq #3 */
1 << 1, /* ISA irq #4 */
1 << 2, /* ISA irq #5 */
1 << 3, /* ISA irq #6 */
1 << 4, /* ISA irq #7 */
0, /* ISA irq #8, invalid */
0, /* ISA irq #9, invalid */
1 << 5, /* ISA irq #10 */
1 << 6, /* ISA irq #11 */
1 << 7, /* ISA irq #12 */
};
static inline int zeus_irq_to_bitmask(unsigned int irq)
{
return zeus_isa_irq_map[irq - PXA_ISA_IRQ(0)];
}
static inline int zeus_bit_to_irq(int bit)
{
return zeus_isa_irqs[bit] + PXA_ISA_IRQ(0);
}
static void zeus_ack_irq(unsigned int irq)
{
__raw_writew(zeus_irq_to_bitmask(irq), ZEUS_CPLD_ISA_IRQ);
}
static void zeus_mask_irq(unsigned int irq)
{
zeus_irq_enabled_mask &= ~(zeus_irq_to_bitmask(irq));
}
static void zeus_unmask_irq(unsigned int irq)
{
zeus_irq_enabled_mask |= zeus_irq_to_bitmask(irq);
}
static inline unsigned long zeus_irq_pending(void)
{
return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask;
}
static void zeus_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending;
pending = zeus_irq_pending();
do {
/* we're in a chained irq handler,
* so ack the interrupt by hand */
desc->chip->ack(gpio_to_irq(ZEUS_ISA_GPIO));
if (likely(pending)) {
irq = zeus_bit_to_irq(__ffs(pending));
generic_handle_irq(irq);
}
pending = zeus_irq_pending();
} while (pending);
}
static struct irq_chip zeus_irq_chip = {
.name = "ISA",
.ack = zeus_ack_irq,
.mask = zeus_mask_irq,
.unmask = zeus_unmask_irq,
};
static void __init zeus_init_irq(void)
{
int level;
int isa_irq;
pxa27x_init_irq();
/* Peripheral IRQs. It would be nice to move those inside driver
configuration, but it is not supported at the moment. */
set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO), IRQ_TYPE_EDGE_FALLING);
set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING);
/* Setup ISA IRQs */
for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) {
isa_irq = zeus_bit_to_irq(level);
set_irq_chip(isa_irq, &zeus_irq_chip);
set_irq_handler(isa_irq, handle_edge_irq);
set_irq_flags(isa_irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
set_irq_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler);
}
/*
* Platform devices
*/
/* Flash */
static struct resource zeus_mtd_resources[] = {
[0] = { /* NOR Flash (up to 64MB) */
.start = ZEUS_FLASH_PHYS,
.end = ZEUS_FLASH_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
[1] = { /* SRAM */
.start = ZEUS_SRAM_PHYS,
.end = ZEUS_SRAM_PHYS + SZ_512K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct physmap_flash_data zeus_flash_data[] = {
[0] = {
.width = 2,
.parts = NULL,
.nr_parts = 0,
},
};
static struct platform_device zeus_mtd_devices[] = {
[0] = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &zeus_flash_data[0],
},
.resource = &zeus_mtd_resources[0],
.num_resources = 1,
},
};
/* Serial */
static struct resource zeus_serial_resources[] = {
{
.start = 0x10000000,
.end = 0x1000000f,
.flags = IORESOURCE_MEM,
},
{
.start = 0x10800000,
.end = 0x1080000f,
.flags = IORESOURCE_MEM,
},
{
.start = 0x11000000,
.end = 0x1100000f,
.flags = IORESOURCE_MEM,
},
{
.start = 0x40100000,
.end = 0x4010001f,
.flags = IORESOURCE_MEM,
},
{
.start = 0x40200000,
.end = 0x4020001f,
.flags = IORESOURCE_MEM,
},
{
.start = 0x40700000,
.end = 0x4070001f,
.flags = IORESOURCE_MEM,
},
};
static struct plat_serial8250_port serial_platform_data[] = {
/* External UARTs */
/* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */
{ /* COM1 */
.mapbase = 0x10000000,
.irq = gpio_to_irq(ZEUS_UARTA_GPIO),
.irqflags = IRQF_TRIGGER_RISING,
.uartclk = 14745600,
.regshift = 1,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ /* COM2 */
.mapbase = 0x10800000,
.irq = gpio_to_irq(ZEUS_UARTB_GPIO),
.irqflags = IRQF_TRIGGER_RISING,
.uartclk = 14745600,
.regshift = 1,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ /* COM3 */
.mapbase = 0x11000000,
.irq = gpio_to_irq(ZEUS_UARTC_GPIO),
.irqflags = IRQF_TRIGGER_RISING,
.uartclk = 14745600,
.regshift = 1,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ /* COM4 */
.mapbase = 0x11800000,
.irq = gpio_to_irq(ZEUS_UARTD_GPIO),
.irqflags = IRQF_TRIGGER_RISING,
.uartclk = 14745600,
.regshift = 1,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
/* Internal UARTs */
{ /* FFUART */
.membase = (void *)&FFUART,
.mapbase = __PREG(FFUART),
.irq = IRQ_FFUART,
.uartclk = 921600 * 16,
.regshift = 2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ /* BTUART */
.membase = (void *)&BTUART,
.mapbase = __PREG(BTUART),
.irq = IRQ_BTUART,
.uartclk = 921600 * 16,
.regshift = 2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ /* STUART */
.membase = (void *)&STUART,
.mapbase = __PREG(STUART),
.irq = IRQ_STUART,
.uartclk = 921600 * 16,
.regshift = 2,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.iotype = UPIO_MEM,
},
{ },
};
static struct platform_device zeus_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
.num_resources = ARRAY_SIZE(zeus_serial_resources),
.resource = zeus_serial_resources,
};
/* Ethernet */
static struct resource zeus_dm9k0_resource[] = {
[0] = {
.start = ZEUS_ETH0_PHYS,
.end = ZEUS_ETH0_PHYS + 1,
.flags = IORESOURCE_MEM
},
[1] = {
.start = ZEUS_ETH0_PHYS + 2,
.end = ZEUS_ETH0_PHYS + 3,
.flags = IORESOURCE_MEM
},
[2] = {
.start = gpio_to_irq(ZEUS_ETH0_GPIO),
.end = gpio_to_irq(ZEUS_ETH0_GPIO),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
},
};
static struct resource zeus_dm9k1_resource[] = {
[0] = {
.start = ZEUS_ETH1_PHYS,
.end = ZEUS_ETH1_PHYS + 1,
.flags = IORESOURCE_MEM
},
[1] = {
.start = ZEUS_ETH1_PHYS + 2,
.end = ZEUS_ETH1_PHYS + 3,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = gpio_to_irq(ZEUS_ETH1_GPIO),
.end = gpio_to_irq(ZEUS_ETH1_GPIO),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
},
};
static struct dm9000_plat_data zeus_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY,
};
static struct platform_device zeus_dm9k0_device = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(zeus_dm9k0_resource),
.resource = zeus_dm9k0_resource,
.dev = {
.platform_data = &zeus_dm9k_platdata,
}
};
static struct platform_device zeus_dm9k1_device = {
.name = "dm9000",
.id = 1,
.num_resources = ARRAY_SIZE(zeus_dm9k1_resource),
.resource = zeus_dm9k1_resource,
.dev = {
.platform_data = &zeus_dm9k_platdata,
}
};
/* External SRAM */
static struct resource zeus_sram_resource = {
.start = ZEUS_SRAM_PHYS,
.end = ZEUS_SRAM_PHYS + ZEUS_SRAM_SIZE * 2 - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device zeus_sram_device = {
.name = "pxa2xx-8bit-sram",
.id = 0,
.num_resources = 1,
.resource = &zeus_sram_resource,
};
/* SPI interface on SSP3 */
static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = {
.num_chipselect = 1,
.enable_dma = 1,
};
/* CAN bus on SPI */
static int zeus_mcp2515_setup(struct spi_device *sdev)
{
int err;
err = gpio_request(ZEUS_CAN_SHDN_GPIO, "CAN shutdown");
if (err)
return err;
err = gpio_direction_output(ZEUS_CAN_SHDN_GPIO, 1);
if (err) {
gpio_free(ZEUS_CAN_SHDN_GPIO);
return err;
}
return 0;
}
static int zeus_mcp2515_transceiver_enable(int enable)
{
gpio_set_value(ZEUS_CAN_SHDN_GPIO, !enable);
return 0;
}
static struct mcp251x_platform_data zeus_mcp2515_pdata = {
.oscillator_frequency = 16*1000*1000,
.board_specific_setup = zeus_mcp2515_setup,
.power_enable = zeus_mcp2515_transceiver_enable,
};
static struct spi_board_info zeus_spi_board_info[] = {
[0] = {
.modalias = "mcp2515",
.platform_data = &zeus_mcp2515_pdata,
.irq = gpio_to_irq(ZEUS_CAN_GPIO),
.max_speed_hz = 1*1000*1000,
.bus_num = 3,
.mode = SPI_MODE_0,
.chip_select = 0,
},
};
/* Leds */
static struct gpio_led zeus_leds[] = {
[0] = {
.name = "zeus:yellow:1",
.default_trigger = "heartbeat",
.gpio = ZEUS_EXT0_GPIO(3),
.active_low = 1,
},
[1] = {
.name = "zeus:yellow:2",
.default_trigger = "default-on",
.gpio = ZEUS_EXT0_GPIO(4),
.active_low = 1,
},
[2] = {
.name = "zeus:yellow:3",
.default_trigger = "default-on",
.gpio = ZEUS_EXT0_GPIO(5),
.active_low = 1,
},
};
static struct gpio_led_platform_data zeus_leds_info = {
.leds = zeus_leds,
.num_leds = ARRAY_SIZE(zeus_leds),
};
static struct platform_device zeus_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &zeus_leds_info,
},
};
static void zeus_cf_reset(int state)
{
u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL);
if (state)
cpld_state |= ZEUS_CPLD_CONTROL_CF_RST;
else
cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST;
__raw_writew(cpld_state, ZEUS_CPLD_CONTROL);
}
static struct arcom_pcmcia_pdata zeus_pcmcia_info = {
.cd_gpio = ZEUS_CF_CD_GPIO,
.rdy_gpio = ZEUS_CF_RDY_GPIO,
.pwr_gpio = ZEUS_CF_PWEN_GPIO,
.reset = zeus_cf_reset,
};
static struct platform_device zeus_pcmcia_device = {
.name = "zeus-pcmcia",
.id = -1,
.dev = {
.platform_data = &zeus_pcmcia_info,
},
};
static struct resource zeus_max6369_resource = {
.start = ZEUS_CPLD_EXTWDOG_PHYS,
.end = ZEUS_CPLD_EXTWDOG_PHYS,
.flags = IORESOURCE_MEM,
};
struct platform_device zeus_max6369_device = {
.name = "max6369_wdt",
.id = -1,
.resource = &zeus_max6369_resource,
.num_resources = 1,
};
static struct platform_device *zeus_devices[] __initdata = {
&zeus_serial_device,
&zeus_mtd_devices[0],
&zeus_dm9k0_device,
&zeus_dm9k1_device,
&zeus_sram_device,
&zeus_leds_device,
&zeus_pcmcia_device,
&zeus_max6369_device,
};
/* AC'97 */
static pxa2xx_audio_ops_t zeus_ac97_info = {
.reset_gpio = 95,
};
/*
* USB host
*/
static int zeus_ohci_init(struct device *dev)
{
int err;
/* Switch on port 2. */
if ((err = gpio_request(ZEUS_USB2_PWREN_GPIO, "USB2_PWREN"))) {
dev_err(dev, "Can't request USB2_PWREN\n");
return err;
}
if ((err = gpio_direction_output(ZEUS_USB2_PWREN_GPIO, 1))) {
gpio_free(ZEUS_USB2_PWREN_GPIO);
dev_err(dev, "Can't enable USB2_PWREN\n");
return err;
}
/* Port 2 is shared between host and client interface. */
UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
return 0;
}
static void zeus_ohci_exit(struct device *dev)
{
/* Power-off port 2 */
gpio_direction_output(ZEUS_USB2_PWREN_GPIO, 0);
gpio_free(ZEUS_USB2_PWREN_GPIO);
}
static struct pxaohci_platform_data zeus_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
/* Clear Power Control Polarity Low and set Power Sense
* Polarity Low. Supply power to USB ports. */
.flags = ENABLE_PORT_ALL | POWER_SENSE_LOW,
.init = zeus_ohci_init,
.exit = zeus_ohci_exit,
};
/*
* Flat Panel
*/
static void zeus_lcd_power(int on, struct fb_var_screeninfo *si)
{
gpio_set_value(ZEUS_LCD_EN_GPIO, on);
}
static void zeus_backlight_power(int on)
{
gpio_set_value(ZEUS_BKLEN_GPIO, on);
}
static int zeus_setup_fb_gpios(void)
{
int err;
if ((err = gpio_request(ZEUS_LCD_EN_GPIO, "LCD_EN")))
goto out_err;
if ((err = gpio_direction_output(ZEUS_LCD_EN_GPIO, 0)))
goto out_err_lcd;
if ((err = gpio_request(ZEUS_BKLEN_GPIO, "BKLEN")))
goto out_err_lcd;
if ((err = gpio_direction_output(ZEUS_BKLEN_GPIO, 0)))
goto out_err_bkl;
return 0;
out_err_bkl:
gpio_free(ZEUS_BKLEN_GPIO);
out_err_lcd:
gpio_free(ZEUS_LCD_EN_GPIO);
out_err:
return err;
}
static struct pxafb_mode_info zeus_fb_mode_info[] = {
{
.pixclock = 39722,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 63,
.left_margin = 16,
.right_margin = 81,
.vsync_len = 2,
.upper_margin = 12,
.lower_margin = 31,
.sync = 0,
},
};
static struct pxafb_mach_info zeus_fb_info = {
.modes = zeus_fb_mode_info,
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
.pxafb_lcd_power = zeus_lcd_power,
.pxafb_backlight_power = zeus_backlight_power,
};
/*
* MMC/SD Device
*
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static struct pxamci_platform_data zeus_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.detect_delay = HZ/4,
.gpio_card_detect = ZEUS_MMC_CD_GPIO,
.gpio_card_ro = ZEUS_MMC_WP_GPIO,
.gpio_card_ro_invert = 1,
.gpio_power = -1
};
/*
* USB Device Controller
*/
static void zeus_udc_command(int cmd)
{
switch (cmd) {
case PXA2XX_UDC_CMD_DISCONNECT:
pr_info("zeus: disconnecting USB client\n");
UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
break;
case PXA2XX_UDC_CMD_CONNECT:
pr_info("zeus: connecting USB client\n");
UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
break;
}
}
static struct pxa2xx_udc_mach_info zeus_udc_info = {
.udc_command = zeus_udc_command,
};
#ifdef CONFIG_PM
static void zeus_power_off(void)
{
local_irq_disable();
pxa27x_cpu_suspend(PWRMODE_DEEPSLEEP);
}
#else
#define zeus_power_off NULL
#endif
#ifdef CONFIG_APM_EMULATION
static void zeus_get_power_status(struct apm_power_info *info)
{
/* Power supply is always present */
info->ac_line_status = APM_AC_ONLINE;
info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
info->battery_flag = APM_BATTERY_FLAG_NOT_PRESENT;
}
static inline void zeus_setup_apm(void)
{
apm_get_power_status = zeus_get_power_status;
}
#else
static inline void zeus_setup_apm(void)
{
}
#endif
static int zeus_get_pcb_info(struct i2c_client *client, unsigned gpio,
unsigned ngpio, void *context)
{
int i;
u8 pcb_info = 0;
for (i = 0; i < 8; i++) {
int pcb_bit = gpio + i + 8;
if (gpio_request(pcb_bit, "pcb info")) {
dev_err(&client->dev, "Can't request pcb info %d\n", i);
continue;
}
if (gpio_direction_input(pcb_bit)) {
dev_err(&client->dev, "Can't read pcb info %d\n", i);
gpio_free(pcb_bit);
continue;
}
pcb_info |= !!gpio_get_value(pcb_bit) << i;
gpio_free(pcb_bit);
}
dev_info(&client->dev, "Zeus PCB version %d issue %d\n",
pcb_info >> 4, pcb_info & 0xf);
return 0;
}
static struct pca953x_platform_data zeus_pca953x_pdata[] = {
[0] = { .gpio_base = ZEUS_EXT0_GPIO_BASE, },
[1] = {
.gpio_base = ZEUS_EXT1_GPIO_BASE,
.setup = zeus_get_pcb_info,
},
[2] = { .gpio_base = ZEUS_USER_GPIO_BASE, },
};
static struct i2c_board_info __initdata zeus_i2c_devices[] = {
{
I2C_BOARD_INFO("pca9535", 0x21),
.platform_data = &zeus_pca953x_pdata[0],
},
{
I2C_BOARD_INFO("pca9535", 0x22),
.platform_data = &zeus_pca953x_pdata[1],
},
{
I2C_BOARD_INFO("pca9535", 0x20),
.platform_data = &zeus_pca953x_pdata[2],
.irq = gpio_to_irq(ZEUS_EXTGPIO_GPIO),
},
{ I2C_BOARD_INFO("lm75a", 0x48) },
{ I2C_BOARD_INFO("24c01", 0x50) },
{ I2C_BOARD_INFO("isl1208", 0x6f) },
};
static mfp_cfg_t zeus_pin_config[] __initdata = {
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO15_nCS_1,
GPIO78_nCS_2,
GPIO80_nCS_4,
GPIO33_nCS_5,
GPIO22_GPIO,
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO88_USBH1_PWR,
GPIO89_USBH1_PEN,
GPIO119_USBH2_PWR,
GPIO120_USBH2_PEN,
GPIO86_LCD_LDD_16,
GPIO87_LCD_LDD_17,
GPIO102_GPIO,
GPIO104_CIF_DD_2,
GPIO105_CIF_DD_1,
GPIO81_SSP3_TXD,
GPIO82_SSP3_RXD,
GPIO83_SSP3_SFRM,
GPIO84_SSP3_SCLK,
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO79_PSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
GPIO36_GPIO, /* CF CD */
GPIO97_GPIO, /* CF PWREN */
GPIO99_GPIO, /* CF RDY */
};
/*
* DM9k MSCx settings: SRAM, 16 bits
* 17 cycles delay first access
* 5 cycles delay next access
* 13 cycles recovery time
* faster device
*/
#define DM9K_MSC_VALUE 0xe4c9
static void __init zeus_init(void)
{
u16 dm9000_msc = DM9K_MSC_VALUE;
system_rev = __raw_readw(ZEUS_CPLD_VERSION);
pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f));
/* Fix timings for dm9000s (CS1/CS2)*/
MSC0 = (MSC0 & 0xffff) | (dm9000_msc << 16);
MSC1 = (MSC1 & 0xffff0000) | dm9000_msc;
pm_power_off = zeus_power_off;
zeus_setup_apm();
pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices));
pxa_set_ohci_info(&zeus_ohci_platform_data);
if (zeus_setup_fb_gpios())
pr_err("Failed to setup fb gpios\n");
else
set_pxa_fb_info(&zeus_fb_info);
pxa_set_mci_info(&zeus_mci_platform_data);
pxa_set_udc_info(&zeus_udc_info);
pxa_set_ac97_info(&zeus_ac97_info);
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices));
pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info);
spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info));
}
static struct map_desc zeus_io_desc[] __initdata = {
{
.virtual = ZEUS_CPLD_VERSION,
.pfn = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS),
.length = 0x1000,
.type = MT_DEVICE,
},
{
.virtual = ZEUS_CPLD_ISA_IRQ,
.pfn = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS),
.length = 0x1000,
.type = MT_DEVICE,
},
{
.virtual = ZEUS_CPLD_CONTROL,
.pfn = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS),
.length = 0x1000,
.type = MT_DEVICE,
},
{
.virtual = ZEUS_PC104IO,
.pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS),
.length = 0x00800000,
.type = MT_DEVICE,
},
};
static void __init zeus_map_io(void)
{
pxa_map_io();
iotable_init(zeus_io_desc, ARRAY_SIZE(zeus_io_desc));
/* Clear PSPR to ensure a full restart on wake-up. */
PMCR = PSPR = 0;
/* enable internal 32.768Khz oscillator (ignore OSCC_OOK) */
OSCC |= OSCC_OON;
/* Some clock cycles later (from OSCC_ON), programme PCFR (OPDE...).
* float chip selects and PCMCIA */
PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP;
}
MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS")
/* Maintainer: Marc Zyngier <maz@misterjones.org> */
.phys_io = 0x40000000,
.io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc),
.boot_params = 0xa0000100,
.map_io = zeus_map_io,
.init_irq = zeus_init_irq,
.timer = &pxa_timer,
.init_machine = zeus_init,
MACHINE_END
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