diff options
Diffstat (limited to 'arch/arm/mach-pxa/idp.c')
| -rw-r--r-- | arch/arm/mach-pxa/idp.c | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c new file mode 100644 index 000000000..525d01ddf --- /dev/null +++ b/arch/arm/mach-pxa/idp.c @@ -0,0 +1,285 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-pxa/idp.c + * + * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc. + * + * 2001-09-13: Cliff Brake <cbrake@accelent.com> + * Initial code + * + * 2005-02-15: Cliff Brake <cliff.brake@gmail.com> + * <http://www.vibren.com> <http://bec-systems.com> + * Updated for 2.6 kernel + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/leds.h> +#include <linux/platform_device.h> +#include <linux/fb.h> + +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include "pxa25x.h" +#include "idp.h" +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/mmc-pxamci.h> +#include <linux/smc91x.h> + +#include "generic.h" +#include "devices.h" + +/* TODO: + * - add pxa2xx_audio_ops_t device structure + * - Ethernet interrupt + */ + +static unsigned long idp_pin_config[] __initdata = { + /* LCD */ + GPIOxx_LCD_DSTN_16BPP, + + /* BTUART */ + GPIO42_BTUART_RXD, + GPIO43_BTUART_TXD, + GPIO44_BTUART_CTS, + GPIO45_BTUART_RTS, + + /* STUART */ + GPIO46_STUART_RXD, + GPIO47_STUART_TXD, + + /* MMC */ + GPIO6_MMC_CLK, + GPIO8_MMC_CS0, + + /* Ethernet */ + GPIO33_nCS_5, /* Ethernet CS */ + GPIO4_GPIO, /* Ethernet IRQ */ +}; + +static struct resource smc91x_resources[] = { + [0] = { + .start = (IDP_ETH_PHYS + 0x300), + .end = (IDP_ETH_PHYS + 0xfffff), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_GPIO_TO_IRQ(4), + .end = PXA_GPIO_TO_IRQ(4), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, + } +}; + +static struct smc91x_platdata smc91x_platdata = { + .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT | + SMC91X_USE_DMA | SMC91X_NOWAIT, + .pxa_u16_align4 = true, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, + .dev.platform_data = &smc91x_platdata, +}; + +static void idp_backlight_power(int on) +{ + if (on) { + IDP_CPLD_LCD |= (1<<1); + } else { + IDP_CPLD_LCD &= ~(1<<1); + } +} + +static void idp_vlcd(int on) +{ + if (on) { + IDP_CPLD_LCD |= (1<<2); + } else { + IDP_CPLD_LCD &= ~(1<<2); + } +} + +static void idp_lcd_power(int on, struct fb_var_screeninfo *var) +{ + if (on) { + IDP_CPLD_LCD |= (1<<0); + } else { + IDP_CPLD_LCD &= ~(1<<0); + } + + /* call idp_vlcd for now as core driver does not support + * both power and vlcd hooks. Note, this is not technically + * the correct sequence, but seems to work. Disclaimer: + * this may eventually damage the display. + */ + + idp_vlcd(on); +} + +static struct pxafb_mode_info sharp_lm8v31_mode = { + .pixclock = 270000, + .xres = 640, + .yres = 480, + .bpp = 16, + .hsync_len = 1, + .left_margin = 3, + .right_margin = 3, + .vsync_len = 1, + .upper_margin = 0, + .lower_margin = 0, + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info sharp_lm8v31 = { + .modes = &sharp_lm8v31_mode, + .num_modes = 1, + .cmap_inverse = 0, + .cmap_static = 0, + .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL | + LCD_AC_BIAS_FREQ(255), + .pxafb_backlight_power = &idp_backlight_power, + .pxafb_lcd_power = &idp_lcd_power +}; + +static struct pxamci_platform_data idp_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, +}; + +static void __init idp_init(void) +{ + printk("idp_init()\n"); + + pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config)); + pxa_set_ffuart_info(NULL); + pxa_set_btuart_info(NULL); + pxa_set_stuart_info(NULL); + + platform_device_register(&smc91x_device); + //platform_device_register(&mst_audio_device); + pxa_set_fb_info(NULL, &sharp_lm8v31); + pxa_set_mci_info(&idp_mci_platform_data); +} + +static struct map_desc idp_io_desc[] __initdata = { + { + .virtual = IDP_COREVOLT_VIRT, + .pfn = __phys_to_pfn(IDP_COREVOLT_PHYS), + .length = IDP_COREVOLT_SIZE, + .type = MT_DEVICE + }, { + .virtual = IDP_CPLD_VIRT, + .pfn = __phys_to_pfn(IDP_CPLD_PHYS), + .length = IDP_CPLD_SIZE, + .type = MT_DEVICE + } +}; + +static void __init idp_map_io(void) +{ + pxa25x_map_io(); + iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc)); +} + +/* LEDs */ +#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) +struct idp_led { + struct led_classdev cdev; + u8 mask; +}; + +/* + * The triggers lines up below will only be used if the + * LED triggers are compiled in. + */ +static const struct { + const char *name; + const char *trigger; +} idp_leds[] = { + { "idp:green", "heartbeat", }, + { "idp:red", "cpu0", }, +}; + +static void idp_led_set(struct led_classdev *cdev, + enum led_brightness b) +{ + struct idp_led *led = container_of(cdev, + struct idp_led, cdev); + u32 reg = IDP_CPLD_LED_CONTROL; + + if (b != LED_OFF) + reg &= ~led->mask; + else + reg |= led->mask; + + IDP_CPLD_LED_CONTROL = reg; +} + +static enum led_brightness idp_led_get(struct led_classdev *cdev) +{ + struct idp_led *led = container_of(cdev, + struct idp_led, cdev); + + return (IDP_CPLD_LED_CONTROL & led->mask) ? LED_OFF : LED_FULL; +} + +static int __init idp_leds_init(void) +{ + int i; + + if (!machine_is_pxa_idp()) + return -ENODEV; + + for (i = 0; i < ARRAY_SIZE(idp_leds); i++) { + struct idp_led *led; + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (!led) + break; + + led->cdev.name = idp_leds[i].name; + led->cdev.brightness_set = idp_led_set; + led->cdev.brightness_get = idp_led_get; + led->cdev.default_trigger = idp_leds[i].trigger; + + if (i == 0) + led->mask = IDP_HB_LED; + else + led->mask = IDP_BUSY_LED; + + if (led_classdev_register(NULL, &led->cdev) < 0) { + kfree(led); + break; + } + } + + return 0; +} + +/* + * Since we may have triggers on any subsystem, defer registration + * until after subsystem_init. + */ +fs_initcall(idp_leds_init); +#endif + +MACHINE_START(PXA_IDP, "Vibren PXA255 IDP") + /* Maintainer: Vibren Technologies */ + .map_io = idp_map_io, + .nr_irqs = PXA_NR_IRQS, + .init_irq = pxa25x_init_irq, + .handle_irq = pxa25x_handle_irq, + .init_time = pxa_timer_init, + .init_machine = idp_init, + .restart = pxa_restart, +MACHINE_END |