2 * linux/arch/arm/mach-pxa/cm-x270.c
4 * Copyright (C) 2007, 2008 CompuLab, Ltd.
5 * Mike Rapoport <mike@compulab.co.il>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/platform_device.h>
13 #include <linux/sysdev.h>
14 #include <linux/irq.h>
15 #include <linux/gpio.h>
17 #include <linux/rtc-v3020.h>
18 #include <video/mbxfb.h>
20 #include <mach/pxa27x.h>
21 #include <mach/ohci.h>
26 /* physical address if local-bus attached devices */
27 #define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
30 #define GPIO83_MMC_IRQ (83)
32 #define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ)
34 /* MMC power enable */
35 #define GPIO105_MMC_POWER (105)
37 static unsigned long cmx270_pin_config
[] = {
40 GPIO29_AC97_SDATA_IN_0
,
41 GPIO30_AC97_SDATA_OUT
,
113 /* SDRAM and local bus */
123 GPIO0_GPIO
| WAKEUP_ON_EDGE_BOTH
,
124 GPIO105_GPIO
| MFP_LPM_DRIVE_HIGH
, /* MMC/SD power */
125 GPIO53_GPIO
, /* PC card reset */
128 GPIO11_GPIO
| MFP_LPM_DRIVE_HIGH
, /* NAND CE# */
129 GPIO89_GPIO
, /* NAND Ready/Busy */
132 GPIO10_GPIO
, /* DM9000 interrupt */
133 GPIO83_GPIO
, /* MMC card detect */
137 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
138 static struct resource cmx270_v3020_resource
[] = {
140 .start
= RTC_PHYS_BASE
,
141 .end
= RTC_PHYS_BASE
+ 4,
142 .flags
= IORESOURCE_MEM
,
146 struct v3020_platform_data cmx270_v3020_pdata
= {
150 static struct platform_device cmx270_rtc_device
= {
152 .num_resources
= ARRAY_SIZE(cmx270_v3020_resource
),
153 .resource
= cmx270_v3020_resource
,
156 .platform_data
= &cmx270_v3020_pdata
,
160 static void __init
cmx270_init_rtc(void)
162 platform_device_register(&cmx270_rtc_device
);
165 static inline void cmx270_init_rtc(void) {}
169 #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
170 static u64 fb_dma_mask
= ~(u64
)0;
172 static struct resource cmx270_2700G_resource
[] = {
173 /* frame buffer memory including ODFB and External SDRAM */
175 .start
= PXA_CS2_PHYS
,
176 .end
= PXA_CS2_PHYS
+ 0x01ffffff,
177 .flags
= IORESOURCE_MEM
,
179 /* Marathon registers */
181 .start
= PXA_CS2_PHYS
+ 0x03fe0000,
182 .end
= PXA_CS2_PHYS
+ 0x03ffffff,
183 .flags
= IORESOURCE_MEM
,
187 static unsigned long save_lcd_regs
[10];
189 static int cmx270_marathon_probe(struct fb_info
*fb
)
191 /* save PXA-270 pin settings before enabling 2700G */
192 save_lcd_regs
[0] = GPDR1
;
193 save_lcd_regs
[1] = GPDR2
;
194 save_lcd_regs
[2] = GAFR1_U
;
195 save_lcd_regs
[3] = GAFR2_L
;
196 save_lcd_regs
[4] = GAFR2_U
;
198 /* Disable PXA-270 on-chip controller driving pins */
199 GPDR1
&= ~(0xfc000000);
200 GPDR2
&= ~(0x00c03fff);
201 GAFR1_U
&= ~(0xfff00000);
202 GAFR2_L
&= ~(0x0fffffff);
203 GAFR2_U
&= ~(0x0000f000);
207 static int cmx270_marathon_remove(struct fb_info
*fb
)
209 GPDR1
= save_lcd_regs
[0];
210 GPDR2
= save_lcd_regs
[1];
211 GAFR1_U
= save_lcd_regs
[2];
212 GAFR2_L
= save_lcd_regs
[3];
213 GAFR2_U
= save_lcd_regs
[4];
217 static struct mbxfb_platform_data cmx270_2700G_data
= {
233 .memsize
= 8*1024*1024,
234 .probe
= cmx270_marathon_probe
,
235 .remove
= cmx270_marathon_remove
,
238 static struct platform_device cmx270_2700G
= {
241 .platform_data
= &cmx270_2700G_data
,
242 .dma_mask
= &fb_dma_mask
,
243 .coherent_dma_mask
= 0xffffffff,
245 .num_resources
= ARRAY_SIZE(cmx270_2700G_resource
),
246 .resource
= cmx270_2700G_resource
,
250 static void __init
cmx270_init_2700G(void)
252 platform_device_register(&cmx270_2700G
);
255 static inline void cmx270_init_2700G(void) {}
258 /* PXA27x OHCI controller setup */
259 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
260 static struct pxaohci_platform_data cmx270_ohci_platform_data
= {
261 .port_mode
= PMM_PERPORT_MODE
,
262 .flags
= ENABLE_PORT1
| ENABLE_PORT2
| POWER_CONTROL_LOW
,
265 static void __init
cmx270_init_ohci(void)
267 pxa_set_ohci_info(&cmx270_ohci_platform_data
);
270 static inline void cmx270_init_ohci(void) {}
273 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
274 static int cmx270_mci_init(struct device
*dev
,
275 irq_handler_t cmx270_detect_int
,
280 err
= gpio_request(GPIO105_MMC_POWER
, "MMC/SD power");
282 dev_warn(dev
, "power gpio unavailable\n");
286 gpio_direction_output(GPIO105_MMC_POWER
, 0);
288 err
= request_irq(CMX270_MMC_IRQ
, cmx270_detect_int
,
289 IRQF_DISABLED
| IRQF_TRIGGER_FALLING
,
290 "MMC card detect", data
);
292 gpio_free(GPIO105_MMC_POWER
);
293 dev_err(dev
, "cmx270_mci_init: MMC/SD: can't"
294 " request MMC card detect IRQ\n");
300 static void cmx270_mci_setpower(struct device
*dev
, unsigned int vdd
)
302 struct pxamci_platform_data
*p_d
= dev
->platform_data
;
304 if ((1 << vdd
) & p_d
->ocr_mask
) {
305 dev_dbg(dev
, "power on\n");
306 gpio_set_value(GPIO105_MMC_POWER
, 0);
308 gpio_set_value(GPIO105_MMC_POWER
, 1);
309 dev_dbg(dev
, "power off\n");
313 static void cmx270_mci_exit(struct device
*dev
, void *data
)
315 free_irq(CMX270_MMC_IRQ
, data
);
316 gpio_free(GPIO105_MMC_POWER
);
319 static struct pxamci_platform_data cmx270_mci_platform_data
= {
320 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
321 .init
= cmx270_mci_init
,
322 .setpower
= cmx270_mci_setpower
,
323 .exit
= cmx270_mci_exit
,
326 static void __init
cmx270_init_mmc(void)
328 pxa_set_mci_info(&cmx270_mci_platform_data
);
331 static inline void cmx270_init_mmc(void) {}
334 void __init
cmx270_init(void)
336 pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config
));
339 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP
);