1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-pxa/idp.c
5 * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
7 * 2001-09-13: Cliff Brake <cbrake@accelent.com>
10 * 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
11 * <http://www.vibren.com> <http://bec-systems.com>
12 * Updated for 2.6 kernel
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/irq.h>
18 #include <linux/leds.h>
19 #include <linux/platform_device.h>
22 #include <asm/setup.h>
23 #include <asm/memory.h>
24 #include <asm/mach-types.h>
25 #include <mach/hardware.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
33 #include <linux/platform_data/video-pxafb.h>
34 #include <mach/bitfield.h>
35 #include <linux/platform_data/mmc-pxamci.h>
36 #include <linux/smc91x.h>
42 * - add pxa2xx_audio_ops_t device structure
43 * - Ethernet interrupt
46 static unsigned long idp_pin_config[] __initdata = {
48 GPIOxx_LCD_DSTN_16BPP,
65 GPIO33_nCS_5, /* Ethernet CS */
66 GPIO4_GPIO, /* Ethernet IRQ */
69 static struct resource smc91x_resources[] = {
71 .start = (IDP_ETH_PHYS + 0x300),
72 .end = (IDP_ETH_PHYS + 0xfffff),
73 .flags = IORESOURCE_MEM,
76 .start = PXA_GPIO_TO_IRQ(4),
77 .end = PXA_GPIO_TO_IRQ(4),
78 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
82 static struct smc91x_platdata smc91x_platdata = {
83 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
84 SMC91X_USE_DMA | SMC91X_NOWAIT,
85 .pxa_u16_align4 = true,
88 static struct platform_device smc91x_device = {
91 .num_resources = ARRAY_SIZE(smc91x_resources),
92 .resource = smc91x_resources,
93 .dev.platform_data = &smc91x_platdata,
96 static void idp_backlight_power(int on)
99 IDP_CPLD_LCD |= (1<<1);
101 IDP_CPLD_LCD &= ~(1<<1);
105 static void idp_vlcd(int on)
108 IDP_CPLD_LCD |= (1<<2);
110 IDP_CPLD_LCD &= ~(1<<2);
114 static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
117 IDP_CPLD_LCD |= (1<<0);
119 IDP_CPLD_LCD &= ~(1<<0);
122 /* call idp_vlcd for now as core driver does not support
123 * both power and vlcd hooks. Note, this is not technically
124 * the correct sequence, but seems to work. Disclaimer:
125 * this may eventually damage the display.
131 static struct pxafb_mode_info sharp_lm8v31_mode = {
142 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
146 static struct pxafb_mach_info sharp_lm8v31 = {
147 .modes = &sharp_lm8v31_mode,
151 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
152 LCD_AC_BIAS_FREQ(255),
153 .pxafb_backlight_power = &idp_backlight_power,
154 .pxafb_lcd_power = &idp_lcd_power
157 static struct pxamci_platform_data idp_mci_platform_data = {
158 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
161 static void __init idp_init(void)
163 printk("idp_init()\n");
165 pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
166 pxa_set_ffuart_info(NULL);
167 pxa_set_btuart_info(NULL);
168 pxa_set_stuart_info(NULL);
170 platform_device_register(&smc91x_device);
171 //platform_device_register(&mst_audio_device);
172 pxa_set_fb_info(NULL, &sharp_lm8v31);
173 pxa_set_mci_info(&idp_mci_platform_data);
176 static struct map_desc idp_io_desc[] __initdata = {
178 .virtual = IDP_COREVOLT_VIRT,
179 .pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
180 .length = IDP_COREVOLT_SIZE,
183 .virtual = IDP_CPLD_VIRT,
184 .pfn = __phys_to_pfn(IDP_CPLD_PHYS),
185 .length = IDP_CPLD_SIZE,
190 static void __init idp_map_io(void)
193 iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
197 #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
199 struct led_classdev cdev;
204 * The triggers lines up below will only be used if the
205 * LED triggers are compiled in.
207 static const struct {
211 { "idp:green", "heartbeat", },
212 { "idp:red", "cpu0", },
215 static void idp_led_set(struct led_classdev *cdev,
216 enum led_brightness b)
218 struct idp_led *led = container_of(cdev,
219 struct idp_led, cdev);
220 u32 reg = IDP_CPLD_LED_CONTROL;
227 IDP_CPLD_LED_CONTROL = reg;
230 static enum led_brightness idp_led_get(struct led_classdev *cdev)
232 struct idp_led *led = container_of(cdev,
233 struct idp_led, cdev);
235 return (IDP_CPLD_LED_CONTROL & led->mask) ? LED_OFF : LED_FULL;
238 static int __init idp_leds_init(void)
242 if (!machine_is_pxa_idp())
245 for (i = 0; i < ARRAY_SIZE(idp_leds); i++) {
248 led = kzalloc(sizeof(*led), GFP_KERNEL);
252 led->cdev.name = idp_leds[i].name;
253 led->cdev.brightness_set = idp_led_set;
254 led->cdev.brightness_get = idp_led_get;
255 led->cdev.default_trigger = idp_leds[i].trigger;
258 led->mask = IDP_HB_LED;
260 led->mask = IDP_BUSY_LED;
262 if (led_classdev_register(NULL, &led->cdev) < 0) {
272 * Since we may have triggers on any subsystem, defer registration
273 * until after subsystem_init.
275 fs_initcall(idp_leds_init);
278 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
279 /* Maintainer: Vibren Technologies */
280 .map_io = idp_map_io,
281 .nr_irqs = PXA_NR_IRQS,
282 .init_irq = pxa25x_init_irq,
283 .handle_irq = pxa25x_handle_irq,
284 .init_time = pxa_timer_init,
285 .init_machine = idp_init,
286 .restart = pxa_restart,