2 * m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
4 * (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
5 * (C) 2001-2002 Montavista Software, Inc.
8 * Support for two slots by Cyclades Corporation
9 * <oliver.kurth@cyclades.de>
10 * Further fixes, v2.6 kernel port
11 * <marcelo.tosatti@cyclades.com>
13 * "The ExCA standard specifies that socket controllers should provide
14 * two IO and five memory windows per socket, which can be independently
15 * configured and positioned in the host address space and mapped to
16 * arbitrary segments of card address space. " - David A Hinds. 1999
18 * This controller does _not_ meet the ExCA standard.
20 * m8xx pcmcia controller brief info:
21 * + 8 windows (attrib, mem, i/o)
22 * + up to two slots (SLOT_A and SLOT_B)
23 * + inputpins, outputpins, event and mask registers.
24 * - no offset register. sigh.
26 * Because of the lacking offset register we must map the whole card.
27 * We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
28 * Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
29 * * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
30 * The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
31 * They are maximum 64KByte each...
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/types.h>
37 #include <linux/fcntl.h>
38 #include <linux/string.h>
41 #include <asm/bitops.h>
42 #include <asm/system.h>
44 #include <linux/kernel.h>
45 #include <linux/errno.h>
46 #include <linux/sched.h>
47 #include <linux/slab.h>
48 #include <linux/timer.h>
49 #include <linux/ioport.h>
50 #include <linux/delay.h>
51 #include <linux/interrupt.h>
52 #include <linux/platform_device.h>
54 #include <asm/mpc8xx.h>
55 #include <asm/8xx_immap.h>
58 #include <pcmcia/version.h>
59 #include <pcmcia/cs_types.h>
60 #include <pcmcia/cs.h>
61 #include <pcmcia/ss.h>
64 static int pc_debug = PCMCIA_DEBUG;
65 module_param(pc_debug, int, 0);
66 #define dprintk(args...) printk(KERN_DEBUG "m8xx_pcmcia: " args);
68 #define dprintk(args...)
71 #define pcmcia_info(args...) printk(KERN_INFO "m8xx_pcmcia: "args)
72 #define pcmcia_error(args...) printk(KERN_ERR "m8xx_pcmcia: "args)
74 static const char *version = "Version 0.06, Aug 2005";
75 MODULE_LICENSE("Dual MPL/GPL");
77 #if !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B)
79 /* The RPX series use SLOT_B */
80 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
81 #define CONFIG_PCMCIA_SLOT_B
82 #define CONFIG_BD_IS_MHZ
85 /* The ADS board use SLOT_A */
87 #define CONFIG_PCMCIA_SLOT_A
88 #define CONFIG_BD_IS_MHZ
91 /* The FADS series are a mess */
93 #if defined(CONFIG_MPC860T) || defined(CONFIG_MPC860) || defined(CONFIG_MPC821)
94 #define CONFIG_PCMCIA_SLOT_A
96 #define CONFIG_PCMCIA_SLOT_B
100 /* Cyclades ACS uses both slots */
102 #define CONFIG_PCMCIA_SLOT_A
103 #define CONFIG_PCMCIA_SLOT_B
106 #endif /* !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B) */
108 #if defined(CONFIG_PCMCIA_SLOT_A) && defined(CONFIG_PCMCIA_SLOT_B)
110 #define PCMCIA_SOCKETS_NO 2
111 /* We have only 8 windows, dualsocket support will be limited. */
112 #define PCMCIA_MEM_WIN_NO 2
113 #define PCMCIA_IO_WIN_NO 2
114 #define PCMCIA_SLOT_MSG "SLOT_A and SLOT_B"
116 #elif defined(CONFIG_PCMCIA_SLOT_A) || defined(CONFIG_PCMCIA_SLOT_B)
118 #define PCMCIA_SOCKETS_NO 1
119 /* full support for one slot */
120 #define PCMCIA_MEM_WIN_NO 5
121 #define PCMCIA_IO_WIN_NO 2
123 /* define _slot_ to be able to optimize macros */
125 #ifdef CONFIG_PCMCIA_SLOT_A
127 #define PCMCIA_SLOT_MSG "SLOT_A"
130 #define PCMCIA_SLOT_MSG "SLOT_B"
134 #error m8xx_pcmcia: Bad configuration!
137 /* ------------------------------------------------------------------------- */
139 #define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0 */
140 #define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte */
141 #define PCMCIA_IO_WIN_BASE _IO_BASE /* base address for io window 0 */
143 #define PCMCIA_SCHLVL PCMCIA_INTERRUPT /* Status Change Interrupt Level */
145 /* ------------------------------------------------------------------------- */
147 /* 2.4.x and newer has this always in HZ */
148 #define M8XX_BUSFREQ ((((bd_t *)&(__res))->bi_busfreq))
150 static int pcmcia_schlvl = PCMCIA_SCHLVL;
152 static spinlock_t events_lock = SPIN_LOCK_UNLOCKED;
155 #define PCMCIA_SOCKET_KEY_5V 1
156 #define PCMCIA_SOCKET_KEY_LV 2
158 /* look up table for pgcrx registers */
159 static u32 *m8xx_pgcrx[2] = {
160 &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcra,
161 &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcrb
165 * This structure is used to address each window in the PCMCIA controller.
167 * Keep in mind that we assume that pcmcia_win[n+1] is mapped directly
168 * after pcmcia_win[n]...
177 * For some reason the hardware guys decided to make both slots share
180 * Could someone invent object oriented hardware ?
182 * The macros are used to get the right bit from the registers.
187 #define M8XX_PCMCIA_VS1(slot) (0x80000000 >> (slot << 4))
188 #define M8XX_PCMCIA_VS2(slot) (0x40000000 >> (slot << 4))
189 #define M8XX_PCMCIA_VS_MASK(slot) (0xc0000000 >> (slot << 4))
190 #define M8XX_PCMCIA_VS_SHIFT(slot) (30 - (slot << 4))
192 #define M8XX_PCMCIA_WP(slot) (0x20000000 >> (slot << 4))
193 #define M8XX_PCMCIA_CD2(slot) (0x10000000 >> (slot << 4))
194 #define M8XX_PCMCIA_CD1(slot) (0x08000000 >> (slot << 4))
195 #define M8XX_PCMCIA_BVD2(slot) (0x04000000 >> (slot << 4))
196 #define M8XX_PCMCIA_BVD1(slot) (0x02000000 >> (slot << 4))
197 #define M8XX_PCMCIA_RDY(slot) (0x01000000 >> (slot << 4))
198 #define M8XX_PCMCIA_RDY_L(slot) (0x00800000 >> (slot << 4))
199 #define M8XX_PCMCIA_RDY_H(slot) (0x00400000 >> (slot << 4))
200 #define M8XX_PCMCIA_RDY_R(slot) (0x00200000 >> (slot << 4))
201 #define M8XX_PCMCIA_RDY_F(slot) (0x00100000 >> (slot << 4))
202 #define M8XX_PCMCIA_MASK(slot) (0xFFFF0000 >> (slot << 4))
204 #define M8XX_PCMCIA_POR_VALID 0x00000001
205 #define M8XX_PCMCIA_POR_WRPROT 0x00000002
206 #define M8XX_PCMCIA_POR_ATTRMEM 0x00000010
207 #define M8XX_PCMCIA_POR_IO 0x00000018
208 #define M8XX_PCMCIA_POR_16BIT 0x00000040
210 #define M8XX_PGCRX(slot) m8xx_pgcrx[slot]
212 #define M8XX_PGCRX_CXOE 0x00000080
213 #define M8XX_PGCRX_CXRESET 0x00000040
215 /* we keep one lookup table per socket to check flags */
217 #define PCMCIA_EVENTS_MAX 5 /* 4 max at a time + termination */
225 void (*handler)(void *info, u32 events);
230 socket_state_t state;
231 struct pccard_mem_map mem_win[PCMCIA_MEM_WIN_NO];
232 struct pccard_io_map io_win[PCMCIA_IO_WIN_NO];
233 struct event_table events[PCMCIA_EVENTS_MAX];
234 struct pcmcia_socket socket;
237 static struct socket_info socket[PCMCIA_SOCKETS_NO];
240 * Search this table to see if the windowsize is
244 #define M8XX_SIZES_NO 32
246 static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] =
248 0x00000001, 0x00000002, 0x00000008, 0x00000004,
249 0x00000080, 0x00000040, 0x00000010, 0x00000020,
250 0x00008000, 0x00004000, 0x00001000, 0x00002000,
251 0x00000100, 0x00000200, 0x00000800, 0x00000400,
253 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
254 0x01000000, 0x02000000, 0xffffffff, 0x04000000,
255 0x00010000, 0x00020000, 0x00080000, 0x00040000,
256 0x00800000, 0x00400000, 0x00100000, 0x00200000
259 /* ------------------------------------------------------------------------- */
261 static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs);
263 #define PCMCIA_BMT_LIMIT (15*4) /* Bus Monitor Timeout value */
265 /* ------------------------------------------------------------------------- */
266 /* board specific stuff: */
267 /* voltage_set(), hardware_enable() and hardware_disable() */
268 /* ------------------------------------------------------------------------- */
269 /* RPX Boards from Embedded Planet */
271 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
273 /* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
274 * SYPCR is write once only, therefore must the slowest memory be faster
275 * than the bus monitor or we will get a machine check due to the bus timeout.
278 #define PCMCIA_BOARD_MSG "RPX CLASSIC or RPX LITE"
280 #undef PCMCIA_BMT_LIMIT
281 #define PCMCIA_BMT_LIMIT (6*8)
283 static int voltage_set(int slot, int vcc, int vpp)
290 reg |= BCSR1_PCVCTL4;
293 reg |= BCSR1_PCVCTL5;
304 reg |= BCSR1_PCVCTL6;
309 reg |= BCSR1_PCVCTL7;
314 if(!((vcc == 50) || (vcc == 0)))
317 /* first, turn off all power */
319 out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) & ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5 | BCSR1_PCVCTL6 | BCSR1_PCVCTL7));
321 /* enable new powersettings */
323 out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) | reg);
328 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
329 #define hardware_enable(_slot_) /* No hardware to enable */
330 #define hardware_disable(_slot_) /* No hardware to disable */
332 #endif /* CONFIG_RPXCLASSIC */
334 /* FADS Boards from Motorola */
336 #if defined(CONFIG_FADS)
338 #define PCMCIA_BOARD_MSG "FADS"
340 static int voltage_set(int slot, int vcc, int vpp)
348 reg |= BCSR1_PCCVCC0;
351 reg |= BCSR1_PCCVCC1;
363 reg |= BCSR1_PCCVPP1;
368 if ((vcc == 33) || (vcc == 50))
369 reg |= BCSR1_PCCVPP0;
376 /* first, turn off all power */
377 out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK));
379 /* enable new powersettings */
380 out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) | reg);
385 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
387 static void hardware_enable(int slot)
389 out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) & ~BCSR1_PCCEN);
392 static void hardware_disable(int slot)
394 out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) | BCSR1_PCCEN);
399 /* ------------------------------------------------------------------------- */
400 /* Motorola MBX860 */
402 #if defined(CONFIG_MBX)
404 #define PCMCIA_BOARD_MSG "MBX"
406 static int voltage_set(int slot, int vcc, int vpp)
434 if ((vcc == 33) || (vcc == 50))
442 /* first, turn off all power */
443 out_8(&((u8 *)MBX_CSR2_ADDR), in_8(&((u8 *)MBX_CSR2_ADDR)) & ~(CSR2_VCC_MASK | CSR2_VPP_MASK));
445 /* enable new powersettings */
446 out_8(&((u8 *)MBX_CSR2_ADDR), in_8(&((u8 *)MBX_CSR2_ADDR)) | reg);
451 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
452 #define hardware_enable(_slot_) /* No hardware to enable */
453 #define hardware_disable(_slot_) /* No hardware to disable */
455 #endif /* CONFIG_MBX */
457 #if defined(CONFIG_PRxK)
458 #include <asm/cpld.h>
459 extern volatile fpga_pc_regs *fpga_pc;
461 #define PCMCIA_BOARD_MSG "MPC855T"
463 static int voltage_set(int slot, int vcc, int vpp)
467 cpld_regs *ccpld = get_cpld();
473 reg |= PCMCIA_VCC_33;
476 reg |= PCMCIA_VCC_50;
488 reg |= PCMCIA_VPP_VCC;
493 if ((vcc == 33) || (vcc == 50))
494 reg |= PCMCIA_VPP_12;
501 reg = reg >> (slot << 2);
502 regread = in_8(&ccpld->fpga_pc_ctl);
503 if (reg != (regread & ((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)))) {
504 /* enable new powersettings */
505 regread = regread & ~((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2));
506 out_8(&ccpld->fpga_pc_ctl, reg | regread);
513 #define socket_get(_slot_) PCMCIA_SOCKET_KEY_LV
514 #define hardware_enable(_slot_) /* No hardware to enable */
515 #define hardware_disable(_slot_) /* No hardware to disable */
517 #endif /* CONFIG_PRxK */
519 static void m8xx_shutdown(void)
522 struct pcmcia_win *w;
524 for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
525 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
527 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, M8XX_PCMCIA_MASK(i));
528 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) & ~M8XX_PCMCIA_MASK(i));
530 /* turn off interrupt and disable CxOE */
531 out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE);
533 /* turn off memory windows */
534 for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
535 out_be32(&w->or, 0); /* set to not valid */
539 /* turn off voltage */
540 voltage_set(i, 0, 0);
542 /* disable external hardware */
546 free_irq(pcmcia_schlvl, NULL);
549 static struct device_driver m8xx_driver = {
550 .name = "m8xx-pcmcia",
551 .bus = &platform_bus_type,
552 .suspend = pcmcia_socket_dev_suspend,
553 .resume = pcmcia_socket_dev_resume,
556 static struct platform_device m8xx_device = {
557 .name = "m8xx-pcmcia",
561 static u32 pending_events[PCMCIA_SOCKETS_NO];
562 static spinlock_t pending_event_lock = SPIN_LOCK_UNLOCKED;
564 static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs)
566 struct socket_info *s;
567 struct event_table *e;
568 unsigned int i, events, pscr, pipr, per;
570 dprintk("Interrupt!\n");
571 /* get interrupt sources */
573 pscr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr);
574 pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
575 per = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per);
577 for(i = 0; i < PCMCIA_SOCKETS_NO; i++) {
584 events |= e->eventbit;
590 * report only if both card detect signals are the same
592 * we depend on that CD2 is the bit to the left of CD1...
594 if(events & SS_DETECT)
595 if(((pipr & M8XX_PCMCIA_CD2(i)) >> 1) ^
596 (pipr & M8XX_PCMCIA_CD1(i)))
598 events &= ~SS_DETECT;
601 #ifdef PCMCIA_GLITCHY_CD
603 * I've experienced CD problems with my ADS board.
604 * We make an extra check to see if there was a
605 * real change of Card detection.
608 if((events & SS_DETECT) &&
610 (M8XX_PCMCIA_CD2(i) | M8XX_PCMCIA_CD1(i))) == 0) &&
611 (s->state.Vcc | s->state.Vpp)) {
612 events &= ~SS_DETECT;
613 /*printk( "CD glitch workaround - CD = 0x%08x!\n",
614 (pipr & (M8XX_PCMCIA_CD2(i)
615 | M8XX_PCMCIA_CD1(i))));*/
619 /* call the handler */
621 dprintk("slot %u: events = 0x%02x, pscr = 0x%08x, "
623 i, events, pscr, pipr);
626 spin_lock(&pending_event_lock);
627 pending_events[i] |= events;
628 spin_unlock(&pending_event_lock);
630 * Turn off RDY_L bits in the PER mask on
631 * CD interrupt receival.
633 * They can generate bad interrupts on the
634 * ACS4,8,16,32. - marcelo
636 per &= ~M8XX_PCMCIA_RDY_L(0);
637 per &= ~M8XX_PCMCIA_RDY_L(1);
639 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, per);
642 pcmcia_parse_events(&socket[i].socket, events);
646 /* clear the interrupt sources */
647 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, pscr);
649 dprintk("Interrupt done.\n");
654 static u32 m8xx_get_graycode(u32 size)
658 for(k = 0; k < M8XX_SIZES_NO; k++)
659 if(m8xx_size_to_gray[k] == size)
662 if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
668 static u32 m8xx_get_speed(u32 ns, u32 is_io)
670 u32 reg, clocks, psst, psl, psht;
675 * We get called with IO maps setup to 0ns
676 * if not specified by the user.
677 * They should be 255ns.
683 ns = 100; /* fast memory if 0 */
687 * In PSST, PSL, PSHT fields we tell the controller
688 * timing parameters in CLKOUT clock cycles.
689 * CLKOUT is the same as GCLK2_50.
692 /* how we want to adjust the timing - in percent */
694 #define ADJ 180 /* 80 % longer accesstime - to be sure */
696 clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
697 clocks = (clocks * ADJ) / (100*1000);
698 if(clocks >= PCMCIA_BMT_LIMIT) {
699 printk( "Max access time limit reached\n");
700 clocks = PCMCIA_BMT_LIMIT-1;
703 psst = clocks / 7; /* setup time */
704 psht = clocks / 7; /* hold time */
705 psl = (clocks * 5) / 7; /* strobe length */
707 psst += clocks - (psst + psht + psl);
716 static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value)
718 int lsock = container_of(sock, struct socket_info, socket)->slot;
719 struct socket_info *s = &socket[lsock];
720 unsigned int pipr, reg;
722 pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
724 *value = ((pipr & (M8XX_PCMCIA_CD1(lsock)
725 | M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0;
726 *value |= (pipr & M8XX_PCMCIA_WP(lsock)) ? SS_WRPROT : 0;
728 if (s->state.flags & SS_IOCARD)
729 *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_STSCHG : 0;
731 *value |= (pipr & M8XX_PCMCIA_RDY(lsock)) ? SS_READY : 0;
732 *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_BATDEAD : 0;
733 *value |= (pipr & M8XX_PCMCIA_BVD2(lsock)) ? SS_BATWARN : 0;
736 if (s->state.Vcc | s->state.Vpp)
737 *value |= SS_POWERON;
741 * This driver only supports 16-Bit pc-cards.
742 * Cardbus is not handled here.
744 * To determine what voltage to use we must read the VS1 and VS2 pin.
745 * Depending on what socket type is present,
746 * different combinations mean different things.
748 * Card Key Socket Key VS1 VS2 Card Vcc for CIS parse
750 * 5V 5V, LV* NC NC 5V only 5V (if available)
752 * 5V 5V, LV* GND NC 5 or 3.3V as low as possible
754 * 5V 5V, LV* GND GND 5, 3.3, x.xV as low as possible
756 * LV* 5V - - shall not fit into socket
758 * LV* LV* GND NC 3.3V only 3.3V
760 * LV* LV* NC GND x.xV x.xV (if avail.)
762 * LV* LV* GND GND 3.3 or x.xV as low as possible
764 * *LV means Low Voltage
767 * That gives us the following table:
769 * Socket VS1 VS2 Voltage
772 * 5V NC GND none (should not be possible)
776 * LV NC NC 5V (if available)
777 * LV NC GND x.xV (if available)
781 * So, how do I determine if I have a 5V or a LV
782 * socket on my board? Look at the socket!
785 * Socket with 5V key:
786 * ++--------------------------------------------+
791 * +---------------------------------------------+
793 * Socket with LV key:
794 * ++--------------------------------------------+
799 * +---------------------------------------------+
802 * With other words - LV only cards does not fit
803 * into the 5V socket!
806 /* read out VS1 and VS2 */
808 reg = (pipr & M8XX_PCMCIA_VS_MASK(lsock))
809 >> M8XX_PCMCIA_VS_SHIFT(lsock);
811 if(socket_get(lsock) == PCMCIA_SOCKET_KEY_LV) {
815 break; /* GND, NC - 3.3V only */
818 break; /* NC. GND - x.xV only */
822 dprintk("GetStatus(%d) = %#2.2x\n", lsock, *value);
826 static int m8xx_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
828 int lsock = container_of(sock, struct socket_info, socket)->slot;
829 *state = socket[lsock].state; /* copy the whole structure */
831 dprintk("GetSocket(%d) = flags %#3.3x, Vcc %d, Vpp %d, "
832 "io_irq %d, csc_mask %#2.2x\n", lsock, state->flags,
833 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
837 static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
839 int lsock = container_of(sock, struct socket_info, socket)->slot;
840 struct socket_info *s = &socket[lsock];
841 struct event_table *e;
845 dprintk( "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
846 "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags,
847 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
849 /* First, set voltage - bail out if invalid */
850 if(voltage_set(lsock, state->Vcc, state->Vpp))
853 /* Take care of reset... */
854 if(state->flags & SS_RESET)
855 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXRESET); /* active high */
857 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXRESET);
859 /* ... and output enable. */
861 /* The CxOE signal is connected to a 74541 on the ADS.
862 I guess most other boards used the ADS as a reference.
863 I tried to control the CxOE signal with SS_OUTPUT_ENA,
864 but the reset signal seems connected via the 541.
865 If the CxOE is left high are some signals tristated and
866 no pullups are present -> the cards act wierd.
867 So right now the buffers are enabled if the power is on. */
869 if(state->Vcc || state->Vpp)
870 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXOE); /* active low */
872 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXOE);
875 * We'd better turn off interrupts before
876 * we mess with the events-table..
879 spin_lock_irqsave(&events_lock, flags);
882 * Play around with the interrupt mask to be able to
883 * give the events the generic pcmcia driver wants us to.
889 if(state->csc_mask & SS_DETECT) {
890 e->eventbit = SS_DETECT;
891 reg |= e->regbit = (M8XX_PCMCIA_CD2(lsock)
892 | M8XX_PCMCIA_CD1(lsock));
895 if(state->flags & SS_IOCARD) {
899 if(state->csc_mask & SS_STSCHG) {
900 e->eventbit = SS_STSCHG;
901 reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
905 * If io_irq is non-zero we should enable irq.
908 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(state->io_irq) << 24);
910 * Strange thing here:
911 * The manual does not tell us which interrupt
912 * the sources generate.
913 * Anyhow, I found out that RDY_L generates IREQLVL.
915 * We use level triggerd interrupts, and they don't
916 * have to be cleared in PSCR in the interrupt handler.
918 reg |= M8XX_PCMCIA_RDY_L(lsock);
921 out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & 0x00ffffff);
927 if(state->csc_mask & SS_BATDEAD) {
928 e->eventbit = SS_BATDEAD;
929 reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
932 if(state->csc_mask & SS_BATWARN) {
933 e->eventbit = SS_BATWARN;
934 reg |= e->regbit = M8XX_PCMCIA_BVD2(lsock);
937 /* What should I trigger on - low/high,raise,fall? */
938 if(state->csc_mask & SS_READY) {
939 e->eventbit = SS_READY;
940 reg |= e->regbit = 0; //??
945 e->regbit = 0; /* terminate list */
948 * Clear the status changed .
949 * Port A and Port B share the same port.
950 * Writing ones will clear the bits.
953 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, reg);
957 * Port A and Port B share the same port.
958 * Need for read-modify-write.
959 * Ones will enable the interrupt.
963 reg |= ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per
964 & M8XX_PCMCIA_MASK(lsock);
967 reg |= in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
968 (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
970 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, reg);
972 spin_unlock_irqrestore(&events_lock, flags);
974 /* copy the struct and modify the copy */
981 static int m8xx_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
983 int lsock = container_of(sock, struct socket_info, socket)->slot;
985 struct socket_info *s = &socket[lsock];
986 struct pcmcia_win *w;
987 unsigned int reg, winnr;
989 #define M8XX_SIZE (io->stop - io->start + 1)
990 #define M8XX_BASE (PCMCIA_IO_WIN_BASE + io->start)
992 dprintk( "SetIOMap(%d, %d, %#2.2x, %d ns, "
993 "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags,
994 io->speed, io->start, io->stop);
996 if ((io->map >= PCMCIA_IO_WIN_NO) || (io->start > 0xffff)
997 || (io->stop > 0xffff) || (io->stop < io->start))
1000 if((reg = m8xx_get_graycode(M8XX_SIZE)) == -1)
1003 if(io->flags & MAP_ACTIVE) {
1005 dprintk( "io->flags & MAP_ACTIVE\n");
1007 winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
1008 + (lsock * PCMCIA_IO_WIN_NO) + io->map;
1010 /* setup registers */
1012 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1015 out_be32(&w->or, 0); /* turn off window first */
1016 out_be32(&w->br, M8XX_BASE);
1019 reg |= M8XX_PCMCIA_POR_IO |(lsock << 2);
1021 reg |= m8xx_get_speed(io->speed, 1);
1023 if(io->flags & MAP_WRPROT)
1024 reg |= M8XX_PCMCIA_POR_WRPROT;
1026 /*if(io->flags & (MAP_16BIT | MAP_AUTOSZ))*/
1027 if(io->flags & MAP_16BIT)
1028 reg |= M8XX_PCMCIA_POR_16BIT;
1030 if(io->flags & MAP_ACTIVE)
1031 reg |= M8XX_PCMCIA_POR_VALID;
1033 out_be32(&w->or, reg);
1035 dprintk("Socket %u: Mapped io window %u at %#8.8x, "
1036 "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
1038 /* shutdown IO window */
1039 winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
1040 + (lsock * PCMCIA_IO_WIN_NO) + io->map;
1042 /* setup registers */
1044 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1047 out_be32(&w->or, 0); /* turn off window */
1048 out_be32(&w->br, 0); /* turn off base address */
1050 dprintk("Socket %u: Unmapped io window %u at %#8.8x, "
1051 "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
1054 /* copy the struct and modify the copy */
1055 s->io_win[io->map] = *io;
1056 s->io_win[io->map].flags &= (MAP_WRPROT
1059 dprintk("SetIOMap exit\n");
1064 static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
1066 int lsock = container_of(sock, struct socket_info, socket)->slot;
1067 struct socket_info *s = &socket[lsock];
1068 struct pcmcia_win *w;
1069 struct pccard_mem_map *old;
1070 unsigned int reg, winnr;
1072 dprintk( "SetMemMap(%d, %d, %#2.2x, %d ns, "
1073 "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
1074 mem->speed, mem->static_start, mem->card_start);
1076 if ((mem->map >= PCMCIA_MEM_WIN_NO)
1077 // || ((mem->s) >= PCMCIA_MEM_WIN_SIZE)
1078 || (mem->card_start >= 0x04000000)
1079 || (mem->static_start & 0xfff) /* 4KByte resolution */
1080 || (mem->card_start & 0xfff))
1083 if((reg = m8xx_get_graycode(PCMCIA_MEM_WIN_SIZE)) == -1) {
1084 printk( "Cannot set size to 0x%08x.\n", PCMCIA_MEM_WIN_SIZE);
1089 winnr = (lsock * PCMCIA_MEM_WIN_NO) + mem->map;
1091 /* Setup the window in the pcmcia controller */
1093 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1098 reg |= m8xx_get_speed(mem->speed, 0);
1100 if(mem->flags & MAP_ATTRIB)
1101 reg |= M8XX_PCMCIA_POR_ATTRMEM;
1103 if(mem->flags & MAP_WRPROT)
1104 reg |= M8XX_PCMCIA_POR_WRPROT;
1106 if(mem->flags & MAP_16BIT)
1107 reg |= M8XX_PCMCIA_POR_16BIT;
1109 if(mem->flags & MAP_ACTIVE)
1110 reg |= M8XX_PCMCIA_POR_VALID;
1112 out_be32(&w->or, reg);
1114 dprintk("Socket %u: Mapped memory window %u at %#8.8x, "
1115 "OR = %#8.8x.\n", lsock, mem->map, w->br, w->or);
1117 if(mem->flags & MAP_ACTIVE) {
1118 /* get the new base address */
1119 mem->static_start = PCMCIA_MEM_WIN_BASE +
1120 (PCMCIA_MEM_WIN_SIZE * winnr)
1124 dprintk("SetMemMap(%d, %d, %#2.2x, %d ns, "
1125 "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
1126 mem->speed, mem->static_start, mem->card_start);
1128 /* copy the struct and modify the copy */
1130 old = &s->mem_win[mem->map];
1133 old->flags &= (MAP_ATTRIB
1141 static int m8xx_sock_init(struct pcmcia_socket *sock)
1144 pccard_io_map io = { 0, 0, 0, 0, 1 };
1145 pccard_mem_map mem = { 0, 0, 0, 0, 0, 0 };
1147 dprintk( "sock_init(%d)\n", s);
1149 m8xx_set_socket(sock, &dead_socket);
1150 for (i = 0; i < PCMCIA_IO_WIN_NO; i++) {
1152 m8xx_set_io_map(sock, &io);
1154 for (i = 0; i < PCMCIA_MEM_WIN_NO; i++) {
1156 m8xx_set_mem_map(sock, &mem);
1163 static int m8xx_suspend(struct pcmcia_socket *sock)
1165 return m8xx_set_socket(sock, &dead_socket);
1168 static struct pccard_operations m8xx_services = {
1169 .init = m8xx_sock_init,
1170 .suspend = m8xx_suspend,
1171 .get_status = m8xx_get_status,
1172 .get_socket = m8xx_get_socket,
1173 .set_socket = m8xx_set_socket,
1174 .set_io_map = m8xx_set_io_map,
1175 .set_mem_map = m8xx_set_mem_map,
1178 static int __init m8xx_init(void)
1180 struct pcmcia_win *w;
1183 pcmcia_info("%s\n", version);
1185 if (driver_register(&m8xx_driver))
1188 pcmcia_info(PCMCIA_BOARD_MSG " using " PCMCIA_SLOT_MSG
1189 " with IRQ %u.\n", pcmcia_schlvl);
1191 /* Configure Status change interrupt */
1193 if(request_irq(pcmcia_schlvl, m8xx_interrupt, 0,
1194 "m8xx_pcmcia", NULL)) {
1195 pcmcia_error("Cannot allocate IRQ %u for SCHLVL!\n",
1200 w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
1202 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr,
1203 M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1));
1205 out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per,
1206 in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
1207 ~(M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1)));
1209 /* connect interrupt and disable CxOE */
1211 out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
1212 out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
1214 /* intialize the fixed memory windows */
1216 for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
1217 for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
1218 out_be32(&w->br, PCMCIA_MEM_WIN_BASE +
1219 (PCMCIA_MEM_WIN_SIZE
1220 * (m + i * PCMCIA_MEM_WIN_NO)));
1222 out_be32(&w->or, 0); /* set to not valid */
1228 /* turn off voltage */
1229 voltage_set(0, 0, 0);
1230 voltage_set(1, 0, 0);
1232 /* Enable external hardware */
1236 platform_device_register(&m8xx_device);
1238 for (i = 0 ; i < PCMCIA_SOCKETS_NO; i++) {
1240 socket[i].socket.owner = THIS_MODULE;
1241 socket[i].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN | SS_CAP_STATIC_MAP;
1242 socket[i].socket.irq_mask = 0x000;
1243 socket[i].socket.map_size = 0x1000;
1244 socket[i].socket.io_offset = 0;
1245 socket[i].socket.pci_irq = i ? 7 : 9;
1246 socket[i].socket.ops = &m8xx_services;
1247 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
1248 socket[i].socket.cb_dev = NULL;
1249 socket[i].socket.dev.dev = &m8xx_device.dev;
1252 for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
1253 pcmcia_register_socket(&socket[i].socket);
1258 static void __exit m8xx_exit(void)
1262 for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
1263 pcmcia_unregister_socket(&socket[i].socket);
1267 platform_device_unregister(&m8xx_device);
1268 driver_unregister(&m8xx_driver);
1271 module_init(m8xx_init);
1272 module_exit(m8xx_exit);