2 * linux/arch/arm/mach-pxa/mainstone.c
4 * Support for the Intel HCDDBBVA0 Development Platform.
5 * (go figure how they came up with such name...)
7 * Author: Nicolas Pitre
8 * Created: Nov 05, 2002
9 * Copyright: MontaVista Software Inc.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/interrupt.h>
19 #include <linux/sched.h>
20 #include <linux/bitops.h>
23 #include <asm/types.h>
24 #include <asm/setup.h>
25 #include <asm/memory.h>
26 #include <asm/mach-types.h>
27 #include <asm/hardware.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
34 #include <asm/arch/pxa-regs.h>
35 #include <asm/arch/mainstone.h>
36 #include <asm/arch/audio.h>
37 #include <asm/arch/pxafb.h>
38 #include <asm/arch/mmc.h>
43 static unsigned long mainstone_irq_enabled;
45 static void mainstone_mask_irq(unsigned int irq)
47 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
48 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
51 static void mainstone_unmask_irq(unsigned int irq)
53 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
54 /* the irq can be acknowledged only if deasserted, so it's done here */
55 MST_INTSETCLR &= ~(1 << mainstone_irq);
56 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
59 static struct irqchip mainstone_irq_chip = {
60 .ack = mainstone_mask_irq,
61 .mask = mainstone_mask_irq,
62 .unmask = mainstone_unmask_irq,
66 static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
69 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
71 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
72 if (likely(pending)) {
73 irq = MAINSTONE_IRQ(0) + __ffs(pending);
74 desc = irq_desc + irq;
75 desc->handle(irq, desc, regs);
77 pending = MST_INTSETCLR & mainstone_irq_enabled;
81 static void __init mainstone_init_irq(void)
87 /* setup extra Mainstone irqs */
88 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
89 set_irq_chip(irq, &mainstone_irq_chip);
90 set_irq_handler(irq, do_level_IRQ);
91 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
93 set_irq_flags(MAINSTONE_IRQ(8), 0);
94 set_irq_flags(MAINSTONE_IRQ(12), 0);
99 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
100 set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
104 static struct resource smc91x_resources[] = {
106 .start = (MST_ETH_PHYS + 0x300),
107 .end = (MST_ETH_PHYS + 0xfffff),
108 .flags = IORESOURCE_MEM,
111 .start = MAINSTONE_IRQ(3),
112 .end = MAINSTONE_IRQ(3),
113 .flags = IORESOURCE_IRQ,
117 static struct platform_device smc91x_device = {
120 .num_resources = ARRAY_SIZE(smc91x_resources),
121 .resource = smc91x_resources,
124 static int mst_audio_startup(snd_pcm_substream_t *substream, void *priv)
126 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
127 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
131 static void mst_audio_shutdown(snd_pcm_substream_t *substream, void *priv)
133 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
134 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
137 static long mst_audio_suspend_mask;
139 static void mst_audio_suspend(void *priv)
141 mst_audio_suspend_mask = MST_MSCWR2;
142 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
145 static void mst_audio_resume(void *priv)
147 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
150 static pxa2xx_audio_ops_t mst_audio_ops = {
151 .startup = mst_audio_startup,
152 .shutdown = mst_audio_shutdown,
153 .suspend = mst_audio_suspend,
154 .resume = mst_audio_resume,
157 static struct platform_device mst_audio_device = {
158 .name = "pxa2xx-ac97",
160 .dev = { .platform_data = &mst_audio_ops },
163 static void mainstone_backlight_power(int on)
166 pxa_gpio_mode(GPIO16_PWM0_MD);
167 pxa_set_cken(CKEN0_PWM0, 1);
175 pxa_set_cken(CKEN0_PWM0, 0);
179 static struct pxafb_mach_info toshiba_ltm04c380k __initdata = {
190 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
193 .pxafb_backlight_power = mainstone_backlight_power,
196 static struct pxafb_mach_info toshiba_ltm035a776c __initdata = {
207 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
210 .pxafb_backlight_power = mainstone_backlight_power,
213 static int mainstone_mci_init(struct device *dev, irqreturn_t (*mstone_detect_int)(int, void *, struct pt_regs *), void *data)
218 * setup GPIO for PXA27x MMC controller
220 pxa_gpio_mode(GPIO32_MMCCLK_MD);
221 pxa_gpio_mode(GPIO112_MMCCMD_MD);
222 pxa_gpio_mode(GPIO92_MMCDAT0_MD);
223 pxa_gpio_mode(GPIO109_MMCDAT1_MD);
224 pxa_gpio_mode(GPIO110_MMCDAT2_MD);
225 pxa_gpio_mode(GPIO111_MMCDAT3_MD);
227 /* make sure SD/Memory Stick multiplexer's signals
228 * are routed to MMC controller
230 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
232 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, SA_INTERRUPT,
233 "MMC card detect", data);
235 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
242 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
244 struct pxamci_platform_data* p_d = dev->platform_data;
246 if (( 1 << vdd) & p_d->ocr_mask) {
247 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
248 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
249 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
251 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
252 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
256 static void mainstone_mci_exit(struct device *dev, void *data)
258 free_irq(MAINSTONE_MMC_IRQ, data);
261 static struct pxamci_platform_data mainstone_mci_platform_data = {
262 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
263 .init = mainstone_mci_init,
264 .setpower = mainstone_mci_setpower,
265 .exit = mainstone_mci_exit,
268 static void __init mainstone_init(void)
271 * On Mainstone, we route AC97_SYSCLK via GPIO45 to
272 * the audio daughter card
274 pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
276 platform_device_register(&smc91x_device);
277 platform_device_register(&mst_audio_device);
279 /* reading Mainstone's "Virtual Configuration Register"
280 might be handy to select LCD type here */
282 set_pxa_fb_info(&toshiba_ltm04c380k);
284 set_pxa_fb_info(&toshiba_ltm035a776c);
286 pxa_set_mci_info(&mainstone_mci_platform_data);
290 static struct map_desc mainstone_io_desc[] __initdata = {
291 { MST_FPGA_VIRT, MST_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
294 static void __init mainstone_map_io(void)
297 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
299 /* initialize sleep mode regs (wake-up sources, etc) */
309 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
310 MAINTAINER("MontaVista Software Inc.")
311 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
312 MAPIO(mainstone_map_io)
313 INITIRQ(mainstone_init_irq)
315 INIT_MACHINE(mainstone_init)