Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / arch / sh / boards / board-magicpanelr2.c
1 /*
2  * linux/arch/sh/boards/magicpanel/setup.c
3  *
4  *  Copyright (C) 2007  Markus Brunner, Mark Jonas
5  *
6  *  Magic Panel Release 2 board setup
7  *
8  * This file is subject to the terms and conditions of the GNU General Public
9  * License.  See the file "COPYING" in the main directory of this archive
10  * for more details.
11  */
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/platform_device.h>
15 #include <linux/delay.h>
16 #include <linux/gpio.h>
17 #include <linux/regulator/fixed.h>
18 #include <linux/regulator/machine.h>
19 #include <linux/smsc911x.h>
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/partitions.h>
22 #include <linux/mtd/physmap.h>
23 #include <linux/mtd/map.h>
24 #include <linux/sh_intc.h>
25 #include <mach/magicpanelr2.h>
26 #include <asm/heartbeat.h>
27 #include <cpu/sh7720.h>
28
29 /* Dummy supplies, where voltage doesn't matter */
30 static struct regulator_consumer_supply dummy_supplies[] = {
31         REGULATOR_SUPPLY("vddvario", "smsc911x"),
32         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
33 };
34
35 #define LAN9115_READY   (__raw_readl(0xA8000084UL) & 0x00000001UL)
36
37 /* Wait until reset finished. Timeout is 100ms. */
38 static int __init ethernet_reset_finished(void)
39 {
40         int i;
41
42         if (LAN9115_READY)
43                 return 1;
44
45         for (i = 0; i < 10; ++i) {
46                 mdelay(10);
47                 if (LAN9115_READY)
48                         return 1;
49         }
50
51         return 0;
52 }
53
54 static void __init reset_ethernet(void)
55 {
56         /* PMDR: LAN_RESET=on */
57         CLRBITS_OUTB(0x10, PORT_PMDR);
58
59         udelay(200);
60
61         /* PMDR: LAN_RESET=off */
62         SETBITS_OUTB(0x10, PORT_PMDR);
63 }
64
65 static void __init setup_chip_select(void)
66 {
67         /* CS2: LAN (0x08000000 - 0x0bffffff) */
68         /* no idle cycles, normal space, 8 bit data bus */
69         __raw_writel(0x36db0400, CS2BCR);
70         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
71         __raw_writel(0x000003c0, CS2WCR);
72
73         /* CS4: CAN1 (0xb0000000 - 0xb3ffffff) */
74         /* no idle cycles, normal space, 8 bit data bus */
75         __raw_writel(0x00000200, CS4BCR);
76         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
77         __raw_writel(0x00100981, CS4WCR);
78
79         /* CS5a: CAN2 (0xb4000000 - 0xb5ffffff) */
80         /* no idle cycles, normal space, 8 bit data bus */
81         __raw_writel(0x00000200, CS5ABCR);
82         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
83         __raw_writel(0x00100981, CS5AWCR);
84
85         /* CS5b: CAN3 (0xb6000000 - 0xb7ffffff) */
86         /* no idle cycles, normal space, 8 bit data bus */
87         __raw_writel(0x00000200, CS5BBCR);
88         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
89         __raw_writel(0x00100981, CS5BWCR);
90
91         /* CS6a: Rotary (0xb8000000 - 0xb9ffffff) */
92         /* no idle cycles, normal space, 8 bit data bus */
93         __raw_writel(0x00000200, CS6ABCR);
94         /* (SW:1.5 WR:3 HW:1.5), no ext. wait */
95         __raw_writel(0x001009C1, CS6AWCR);
96 }
97
98 static void __init setup_port_multiplexing(void)
99 {
100         /* A7 GPO(LED8);     A6 GPO(LED7);     A5 GPO(LED6);      A4 GPO(LED5);
101          * A3 GPO(LED4);     A2 GPO(LED3);     A1 GPO(LED2);      A0 GPO(LED1);
102          */
103         __raw_writew(0x5555, PORT_PACR);        /* 01 01 01 01 01 01 01 01 */
104
105         /* B7 GPO(RST4);   B6 GPO(RST3);  B5 GPO(RST2);    B4 GPO(RST1);
106          * B3 GPO(PB3);    B2 GPO(PB2);   B1 GPO(PB1);     B0 GPO(PB0);
107          */
108         __raw_writew(0x5555, PORT_PBCR);        /* 01 01 01 01 01 01 01 01 */
109
110         /* C7 GPO(PC7);   C6 GPO(PC6);    C5 GPO(PC5);     C4 GPO(PC4);
111          * C3 LCD_DATA3;  C2 LCD_DATA2;   C1 LCD_DATA1;    C0 LCD_DATA0;
112          */
113         __raw_writew(0x5500, PORT_PCCR);        /* 01 01 01 01 00 00 00 00 */
114
115         /* D7 GPO(PD7); D6 GPO(PD6);    D5 GPO(PD5);       D4 GPO(PD4);
116          * D3 GPO(PD3); D2 GPO(PD2);    D1 GPO(PD1);       D0 GPO(PD0);
117          */
118         __raw_writew(0x5555, PORT_PDCR);        /* 01 01 01 01 01 01 01 01 */
119
120         /* E7 (x);        E6 GPI(nu);    E5 GPI(nu);      E4 LCD_M_DISP;
121          * E3 LCD_CL1;    E2 LCD_CL2;    E1 LCD_DON;      E0 LCD_FLM;
122          */
123         __raw_writew(0x3C00, PORT_PECR);        /* 00 11 11 00 00 00 00 00 */
124
125         /* F7 (x);           F6 DA1(VLCD);     F5 DA0(nc);        F4 AN3;
126          * F3 AN2(MID_AD);   F2 AN1(EARTH_AD); F1 AN0(TEMP);      F0 GPI+(nc);
127          */
128         __raw_writew(0x0002, PORT_PFCR);        /* 00 00 00 00 00 00 00 10 */
129
130         /* G7 (x);        G6 IRQ5(TOUCH_BUSY); G5 IRQ4(TOUCH_IRQ); G4 GPI(KEY2);
131          * G3 GPI(KEY1);  G2 GPO(LED11);        G1 GPO(LED10);     G0 GPO(LED9);
132          */
133         __raw_writew(0x03D5, PORT_PGCR);        /* 00 00 00 11 11 01 01 01 */
134
135         /* H7 (x);            H6 /RAS(BRAS);      H5 /CAS(BCAS); H4 CKE(BCKE);
136          * H3 GPO(EARTH_OFF); H2 GPO(EARTH_TEST); H1 USB2_PWR;   H0 USB1_PWR;
137          */
138         __raw_writew(0x0050, PORT_PHCR);        /* 00 00 00 00 01 01 00 00 */
139
140         /* J7 (x);        J6 AUDCK;        J5 ASEBRKAK;     J4 AUDATA3;
141          * J3 AUDATA2;    J2 AUDATA1;      J1 AUDATA0;      J0 AUDSYNC;
142          */
143         __raw_writew(0x0000, PORT_PJCR);        /* 00 00 00 00 00 00 00 00 */
144
145         /* K7 (x);          K6 (x);          K5 (x);       K4 (x);
146          * K3 PINT7(/PWR2); K2 PINT6(/PWR1); K1 PINT5(nu); K0 PINT4(FLASH_READY)
147          */
148         __raw_writew(0x00FF, PORT_PKCR);        /* 00 00 00 00 11 11 11 11 */
149
150         /* L7 TRST;        L6 TMS;           L5 TDO;              L4 TDI;
151          * L3 TCK;         L2 (x);           L1 (x);              L0 (x);
152          */
153         __raw_writew(0x0000, PORT_PLCR);        /* 00 00 00 00 00 00 00 00 */
154
155         /* M7 GPO(CURRENT_SINK);    M6 GPO(PWR_SWITCH);     M5 GPO(LAN_SPEED);
156          * M4 GPO(LAN_RESET);       M3 GPO(BUZZER);         M2 GPO(LCD_BL);
157          * M1 CS5B(CAN3_CS);        M0 GPI+(nc);
158          */
159         __raw_writew(0x5552, PORT_PMCR);           /* 01 01 01 01 01 01 00 10 */
160
161         /* CURRENT_SINK=off,    PWR_SWITCH=off, LAN_SPEED=100MBit,
162          * LAN_RESET=off,       BUZZER=off,     LCD_BL=off
163          */
164 #if CONFIG_SH_MAGIC_PANEL_R2_VERSION == 2
165         __raw_writeb(0x30, PORT_PMDR);
166 #elif CONFIG_SH_MAGIC_PANEL_R2_VERSION == 3
167         __raw_writeb(0xF0, PORT_PMDR);
168 #else
169 #error Unknown revision of PLATFORM_MP_R2
170 #endif
171
172         /* P7 (x);             P6 (x);            P5 (x);
173          * P4 GPO(nu);         P3 IRQ3(LAN_IRQ);  P2 IRQ2(CAN3_IRQ);
174          * P1 IRQ1(CAN2_IRQ);  P0 IRQ0(CAN1_IRQ)
175          */
176         __raw_writew(0x0100, PORT_PPCR);        /* 00 00 00 01 00 00 00 00 */
177         __raw_writeb(0x10, PORT_PPDR);
178
179         /* R7 A25;           R6 A24;         R5 A23;              R4 A22;
180          * R3 A21;           R2 A20;         R1 A19;              R0 A0;
181          */
182         gpio_request(GPIO_FN_A25, NULL);
183         gpio_request(GPIO_FN_A24, NULL);
184         gpio_request(GPIO_FN_A23, NULL);
185         gpio_request(GPIO_FN_A22, NULL);
186         gpio_request(GPIO_FN_A21, NULL);
187         gpio_request(GPIO_FN_A20, NULL);
188         gpio_request(GPIO_FN_A19, NULL);
189         gpio_request(GPIO_FN_A0, NULL);
190
191         /* S7 (x);              S6 (x);        S5 (x);       S4 GPO(EEPROM_CS2);
192          * S3 GPO(EEPROM_CS1);  S2 SIOF0_TXD;  S1 SIOF0_RXD; S0 SIOF0_SCK;
193          */
194         __raw_writew(0x0140, PORT_PSCR);        /* 00 00 00 01 01 00 00 00 */
195
196         /* T7 (x);         T6 (x);        T5 (x);         T4 COM1_CTS;
197          * T3 COM1_RTS;    T2 COM1_TXD;   T1 COM1_RXD;    T0 GPO(WDOG)
198          */
199         __raw_writew(0x0001, PORT_PTCR);        /* 00 00 00 00 00 00 00 01 */
200
201         /* U7 (x);           U6 (x);       U5 (x);        U4 GPI+(/AC_FAULT);
202          * U3 GPO(TOUCH_CS); U2 TOUCH_TXD; U1 TOUCH_RXD;  U0 TOUCH_SCK;
203          */
204         __raw_writew(0x0240, PORT_PUCR);        /* 00 00 00 10 01 00 00 00 */
205
206         /* V7 (x);        V6 (x);       V5 (x);           V4 GPO(MID2);
207          * V3 GPO(MID1);  V2 CARD_TxD;  V1 CARD_RxD;      V0 GPI+(/BAT_FAULT);
208          */
209         __raw_writew(0x0142, PORT_PVCR);        /* 00 00 00 01 01 00 00 10 */
210 }
211
212 static void __init mpr2_setup(char **cmdline_p)
213 {
214         /* set Pin Select Register A:
215          * /PCC_CD1, /PCC_CD2,  PCC_BVD1, PCC_BVD2,
216          * /IOIS16,  IRQ4,      IRQ5,     USB1d_SUSPEND
217          */
218         __raw_writew(0xAABC, PORT_PSELA);
219         /* set Pin Select Register B:
220          * /SCIF0_RTS, /SCIF0_CTS, LCD_VCPWC,
221          * LCD_VEPWC,  IIC_SDA,    IIC_SCL, Reserved
222          */
223         __raw_writew(0x3C00, PORT_PSELB);
224         /* set Pin Select Register C:
225          * SIOF1_SCK, SIOF1_RxD, SCIF1_RxD, SCIF1_TxD, Reserved
226          */
227         __raw_writew(0x0000, PORT_PSELC);
228         /* set Pin Select Register D: Reserved, SIOF1_TxD, Reserved, SIOF1_MCLK,
229          * Reserved, SIOF1_SYNC, Reserved, SCIF1_SCK, Reserved
230          */
231         __raw_writew(0x0000, PORT_PSELD);
232         /* set USB TxRx Control: Reserved, DRV, Reserved, USB_TRANS, USB_SEL */
233         __raw_writew(0x0101, PORT_UTRCTL);
234         /* set USB Clock Control: USSCS, USSTB, Reserved (HighByte always A5) */
235         __raw_writew(0xA5C0, PORT_UCLKCR_W);
236
237         setup_chip_select();
238
239         setup_port_multiplexing();
240
241         reset_ethernet();
242
243         printk(KERN_INFO "Magic Panel Release 2 A.%i\n",
244                                 CONFIG_SH_MAGIC_PANEL_R2_VERSION);
245
246         if (ethernet_reset_finished() == 0)
247                 printk(KERN_WARNING "Ethernet not ready\n");
248 }
249
250 static struct resource smsc911x_resources[] = {
251         [0] = {
252                 .start          = 0xa8000000,
253                 .end            = 0xabffffff,
254                 .flags          = IORESOURCE_MEM,
255         },
256         [1] = {
257                 .start          = evt2irq(0x660),
258                 .end            = evt2irq(0x660),
259                 .flags          = IORESOURCE_IRQ,
260         },
261 };
262
263 static struct smsc911x_platform_config smsc911x_config = {
264         .phy_interface  = PHY_INTERFACE_MODE_MII,
265         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
266         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
267         .flags          = SMSC911X_USE_32BIT,
268 };
269
270 static struct platform_device smsc911x_device = {
271         .name           = "smsc911x",
272         .id             = -1,
273         .num_resources  = ARRAY_SIZE(smsc911x_resources),
274         .resource       = smsc911x_resources,
275         .dev = {
276                 .platform_data = &smsc911x_config,
277         },
278 };
279
280 static struct resource heartbeat_resources[] = {
281         [0] = {
282                 .start  = PA_LED,
283                 .end    = PA_LED,
284                 .flags  = IORESOURCE_MEM,
285         },
286 };
287
288 static struct heartbeat_data heartbeat_data = {
289         .flags          = HEARTBEAT_INVERTED,
290 };
291
292 static struct platform_device heartbeat_device = {
293         .name           = "heartbeat",
294         .id             = -1,
295         .dev    = {
296                 .platform_data  = &heartbeat_data,
297         },
298         .num_resources  = ARRAY_SIZE(heartbeat_resources),
299         .resource       = heartbeat_resources,
300 };
301
302 static struct mtd_partition mpr2_partitions[] = {
303         /* Reserved for bootloader, read-only */
304         {
305                 .name = "Bootloader",
306                 .offset = 0x00000000UL,
307                 .size = MPR2_MTD_BOOTLOADER_SIZE,
308                 .mask_flags = MTD_WRITEABLE,
309         },
310         /* Reserved for kernel image */
311         {
312                 .name = "Kernel",
313                 .offset = MTDPART_OFS_NXTBLK,
314                 .size = MPR2_MTD_KERNEL_SIZE,
315         },
316         /* Rest is used for Flash FS */
317         {
318                 .name = "Flash_FS",
319                 .offset = MTDPART_OFS_NXTBLK,
320                 .size = MTDPART_SIZ_FULL,
321         }
322 };
323
324 static struct physmap_flash_data flash_data = {
325         .parts          = mpr2_partitions,
326         .nr_parts       = ARRAY_SIZE(mpr2_partitions),
327         .width          = 2,
328 };
329
330 static struct resource flash_resource = {
331         .start          = 0x00000000,
332         .end            = 0x2000000UL,
333         .flags          = IORESOURCE_MEM,
334 };
335
336 static struct platform_device flash_device = {
337         .name           = "physmap-flash",
338         .id             = -1,
339         .resource       = &flash_resource,
340         .num_resources  = 1,
341         .dev            = {
342                 .platform_data = &flash_data,
343         },
344 };
345
346 /*
347  * Add all resources to the platform_device
348  */
349
350 static struct platform_device *mpr2_devices[] __initdata = {
351         &heartbeat_device,
352         &smsc911x_device,
353         &flash_device,
354 };
355
356
357 static int __init mpr2_devices_setup(void)
358 {
359         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
360
361         return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices));
362 }
363 device_initcall(mpr2_devices_setup);
364
365 /*
366  * Initialize IRQ setting
367  */
368 static void __init init_mpr2_IRQ(void)
369 {
370         plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
371
372         irq_set_irq_type(evt2irq(0x600), IRQ_TYPE_LEVEL_LOW);    /* IRQ0 CAN1 */
373         irq_set_irq_type(evt2irq(0x620), IRQ_TYPE_LEVEL_LOW);    /* IRQ1 CAN2 */
374         irq_set_irq_type(evt2irq(0x640), IRQ_TYPE_LEVEL_LOW);    /* IRQ2 CAN3 */
375         irq_set_irq_type(evt2irq(0x660), IRQ_TYPE_LEVEL_LOW);    /* IRQ3 SMSC9115 */
376         irq_set_irq_type(evt2irq(0x680), IRQ_TYPE_EDGE_RISING);  /* IRQ4 touchscreen */
377         irq_set_irq_type(evt2irq(0x6a0), IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
378
379         intc_set_priority(evt2irq(0x600), 13);          /* IRQ0 CAN1 */
380         intc_set_priority(evt2irq(0x620), 13);          /* IRQ0 CAN2 */
381         intc_set_priority(evt2irq(0x640), 13);          /* IRQ0 CAN3 */
382         intc_set_priority(evt2irq(0x660), 6);           /* IRQ3 SMSC9115 */
383 }
384
385 /*
386  * The Machine Vector
387  */
388
389 static struct sh_machine_vector mv_mpr2 __initmv = {
390         .mv_name                = "mpr2",
391         .mv_setup               = mpr2_setup,
392         .mv_init_irq            = init_mpr2_IRQ,
393 };