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-rw-r--r--arch/arm/mach-pxa/zeus.c974
1 files changed, 974 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
new file mode 100644
index 000000000..ff0d8bb9f
--- /dev/null
+++ b/arch/arm/mach-pxa/zeus.c
@@ -0,0 +1,974 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * 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>
+ */
+
+#include <linux/cpufreq.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/irq.h>
+#include <linux/pm.h>
+#include <linux/property.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/serial_8250.h>
+#include <linux/dm9000.h>
+#include <linux/mmc/host.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/platform_data/i2c-pxa.h>
+#include <linux/platform_data/pca953x.h>
+#include <linux/apm-emulation.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+
+#include <asm/mach-types.h>
+#include <asm/suspend.h>
+#include <asm/system_info.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "pxa27x.h"
+#include "devices.h"
+#include "regs-uart.h"
+#include <linux/platform_data/usb-ohci-pxa27x.h>
+#include <linux/platform_data/mmc-pxamci.h>
+#include "pxa27x-udc.h"
+#include "udc.h"
+#include <linux/platform_data/video-pxafb.h>
+#include "pm.h"
+#include <linux/platform_data/asoc-pxa.h>
+#include "viper-pcmcia.h"
+#include "zeus.h"
+#include "smemc.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(struct irq_data *d)
+{
+ __raw_writew(zeus_irq_to_bitmask(d->irq), ZEUS_CPLD_ISA_IRQ);
+}
+
+static void zeus_mask_irq(struct irq_data *d)
+{
+ zeus_irq_enabled_mask &= ~(zeus_irq_to_bitmask(d->irq));
+}
+
+static void zeus_unmask_irq(struct irq_data *d)
+{
+ zeus_irq_enabled_mask |= zeus_irq_to_bitmask(d->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(struct irq_desc *desc)
+{
+ unsigned int irq;
+ unsigned long pending;
+
+ pending = zeus_irq_pending();
+ do {
+ /* we're in a chained irq handler,
+ * so ack the interrupt by hand */
+ desc->irq_data.chip->irq_ack(&desc->irq_data);
+
+ 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",
+ .irq_ack = zeus_ack_irq,
+ .irq_mask = zeus_mask_irq,
+ .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. */
+ irq_set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING);
+ irq_set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING);
+ irq_set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING);
+ irq_set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO),
+ IRQ_TYPE_EDGE_FALLING);
+ irq_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);
+ irq_set_chip_and_handler(isa_irq, &zeus_irq_chip,
+ handle_edge_irq);
+ irq_clear_status_flags(isa_irq, IRQ_NOREQUEST | IRQ_NOPROBE);
+ }
+
+ irq_set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
+ irq_set_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 = PXA_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 = PXA_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 = PXA_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 = PXA_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 = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO),
+ .end = PXA_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 = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO),
+ .end = PXA_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_controller pxa2xx_spi_ssp3_master_info = {
+ .num_chipselect = 1,
+ .enable_dma = 1,
+};
+
+/* CAN bus on SPI */
+static struct regulator_consumer_supply can_regulator_consumer =
+ REGULATOR_SUPPLY("vdd", "spi3.0");
+
+static struct regulator_init_data can_regulator_init_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = &can_regulator_consumer,
+ .num_consumer_supplies = 1,
+};
+
+static struct fixed_voltage_config can_regulator_pdata = {
+ .supply_name = "CAN_SHDN",
+ .microvolts = 3300000,
+ .init_data = &can_regulator_init_data,
+};
+
+static struct platform_device can_regulator_device = {
+ .name = "reg-fixed-voltage",
+ .id = 0,
+ .dev = {
+ .platform_data = &can_regulator_pdata,
+ },
+};
+
+static struct gpiod_lookup_table can_regulator_gpiod_table = {
+ .dev_id = "reg-fixed-voltage.0",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", ZEUS_CAN_SHDN_GPIO,
+ NULL, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static const struct property_entry mcp251x_properties[] = {
+ PROPERTY_ENTRY_U32("clock-frequency", 16000000),
+ {}
+};
+
+static const struct software_node mcp251x_node = {
+ .properties = mcp251x_properties,
+};
+
+static struct spi_board_info zeus_spi_board_info[] = {
+ [0] = {
+ .modalias = "mcp2515",
+ .swnode = &mcp251x_node,
+ .irq = PXA_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,
+};
+
+/* AC'97 */
+static pxa2xx_audio_ops_t zeus_ac97_info = {
+ .reset_gpio = 95,
+};
+
+
+/*
+ * USB host
+ */
+
+static struct regulator_consumer_supply zeus_ohci_regulator_supplies[] = {
+ REGULATOR_SUPPLY("vbus2", "pxa27x-ohci"),
+};
+
+static struct regulator_init_data zeus_ohci_regulator_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(zeus_ohci_regulator_supplies),
+ .consumer_supplies = zeus_ohci_regulator_supplies,
+};
+
+static struct fixed_voltage_config zeus_ohci_regulator_config = {
+ .supply_name = "vbus2",
+ .microvolts = 5000000, /* 5.0V */
+ .startup_delay = 0,
+ .init_data = &zeus_ohci_regulator_data,
+};
+
+static struct platform_device zeus_ohci_regulator_device = {
+ .name = "reg-fixed-voltage",
+ .id = 1,
+ .dev = {
+ .platform_data = &zeus_ohci_regulator_config,
+ },
+};
+
+static struct gpiod_lookup_table zeus_ohci_regulator_gpiod_table = {
+ .dev_id = "reg-fixed-voltage.0",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", ZEUS_USB2_PWREN_GPIO,
+ NULL, GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
+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,
+};
+
+static void __init zeus_register_ohci(void)
+{
+ /* Port 2 is shared between host and client interface. */
+ UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
+
+ pxa_set_ohci_info(&zeus_ohci_platform_data);
+}
+
+/*
+ * 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_ms = 250,
+ .gpio_card_ro_invert = 1,
+};
+
+static struct gpiod_lookup_table zeus_mci_gpio_table = {
+ .dev_id = "pxa2xx-mci.0",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_CD_GPIO,
+ "cd", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_WP_GPIO,
+ "wp", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
+/*
+ * 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,
+};
+
+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,
+ &can_regulator_device,
+ &zeus_ohci_regulator_device,
+};
+
+#ifdef CONFIG_PM
+static void zeus_power_off(void)
+{
+ local_irq_disable();
+ cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
+}
+#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 = PXA_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;
+ u32 msc0, msc1;
+
+ 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 = (__raw_readl(MSC0) & 0x0000ffff) | (dm9000_msc << 16);
+ msc1 = (__raw_readl(MSC1) & 0xffff0000) | dm9000_msc;
+ __raw_writel(msc0, MSC0);
+ __raw_writel(msc1, MSC1);
+
+ pm_power_off = zeus_power_off;
+ zeus_setup_apm();
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
+
+ gpiod_add_lookup_table(&can_regulator_gpiod_table);
+ gpiod_add_lookup_table(&zeus_ohci_regulator_gpiod_table);
+ platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices));
+
+ zeus_register_ohci();
+
+ if (zeus_setup_fb_gpios())
+ pr_err("Failed to setup fb gpios\n");
+ else
+ pxa_set_fb_info(NULL, &zeus_fb_info);
+
+ gpiod_add_lookup_table(&zeus_mci_gpio_table);
+ 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));
+
+ regulator_has_full_constraints();
+}
+
+static struct map_desc zeus_io_desc[] __initdata = {
+ {
+ .virtual = (unsigned long)ZEUS_CPLD_VERSION,
+ .pfn = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS),
+ .length = 0x1000,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = (unsigned long)ZEUS_CPLD_ISA_IRQ,
+ .pfn = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS),
+ .length = 0x1000,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = (unsigned long)ZEUS_CPLD_CONTROL,
+ .pfn = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS),
+ .length = 0x1000,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = (unsigned long)ZEUS_PC104IO,
+ .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS),
+ .length = 0x00800000,
+ .type = MT_DEVICE,
+ },
+ {
+ /*
+ * ISA I/O space mapping:
+ * - ports 0x0000-0x0fff are PC/104
+ * - ports 0x10000-0x10fff are PCMCIA slot 1
+ * - ports 0x11000-0x11fff are PC/104
+ */
+ .virtual = PCI_IO_VIRT_BASE,
+ .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS),
+ .length = 0x1000,
+ .type = MT_DEVICE,
+ },
+};
+
+static void __init zeus_map_io(void)
+{
+ pxa27x_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) */
+ writel(readl(OSCC) | OSCC_OON, OSCC);
+
+ /* 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> */
+ .atag_offset = 0x100,
+ .map_io = zeus_map_io,
+ .nr_irqs = ZEUS_NR_IRQS,
+ .init_irq = zeus_init_irq,
+ .handle_irq = pxa27x_handle_irq,
+ .init_time = pxa_timer_init,
+ .init_machine = zeus_init,
+ .restart = pxa_restart,
+MACHINE_END
+