Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 2 | /* |
| 3 | * For License see notice in hfc_multi.c |
| 4 | * |
| 5 | * special IO and init functions for the embedded XHFC board |
| 6 | * from Speech Design |
| 7 | * |
| 8 | */ |
| 9 | |
Christophe Leroy | b79df0f | 2017-03-16 10:18:02 +0100 | [diff] [blame] | 10 | #include <asm/cpm1.h> |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 11 | |
| 12 | /* Change this to the value used by your board */ |
| 13 | #ifndef IMAP_ADDR |
| 14 | #define IMAP_ADDR 0xFFF00000 |
| 15 | #endif |
| 16 | |
| 17 | static void |
| 18 | #ifdef HFC_REGISTER_DEBUG |
| 19 | HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 20 | const char *function, int line) |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 21 | #else |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 22 | HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val) |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 23 | #endif |
| 24 | { |
| 25 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 26 | writeb(reg, hc->xhfc_memaddr); |
| 27 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 28 | writeb(val, hc->xhfc_memdata); |
| 29 | } |
| 30 | static u_char |
| 31 | #ifdef HFC_REGISTER_DEBUG |
| 32 | HFC_inb_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line) |
| 33 | #else |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 34 | HFC_inb_embsd(struct hfc_multi *hc, u_char reg) |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 35 | #endif |
| 36 | { |
| 37 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 38 | writeb(reg, hc->xhfc_memaddr); |
| 39 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 40 | return readb(hc->xhfc_memdata); |
| 41 | } |
| 42 | static u_short |
| 43 | #ifdef HFC_REGISTER_DEBUG |
| 44 | HFC_inw_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line) |
| 45 | #else |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 46 | HFC_inw_embsd(struct hfc_multi *hc, u_char reg) |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 47 | #endif |
| 48 | { |
| 49 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 50 | writeb(reg, hc->xhfc_memaddr); |
| 51 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 52 | return readb(hc->xhfc_memdata); |
| 53 | } |
| 54 | static void |
| 55 | #ifdef HFC_REGISTER_DEBUG |
| 56 | HFC_wait_embsd(struct hfc_multi *hc, const char *function, int line) |
| 57 | #else |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 58 | HFC_wait_embsd(struct hfc_multi *hc) |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 59 | #endif |
| 60 | { |
| 61 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 62 | writeb(R_STATUS, hc->xhfc_memaddr); |
| 63 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 64 | while (readb(hc->xhfc_memdata) & V_BUSY) |
| 65 | cpu_relax(); |
| 66 | } |
| 67 | |
| 68 | /* write fifo data (EMBSD) */ |
| 69 | void |
| 70 | write_fifo_embsd(struct hfc_multi *hc, u_char *data, int len) |
| 71 | { |
| 72 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 73 | *hc->xhfc_memaddr = A_FIFO_DATA0; |
| 74 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 75 | while (len) { |
| 76 | *hc->xhfc_memdata = *data; |
| 77 | data++; |
| 78 | len--; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /* read fifo data (EMBSD) */ |
| 83 | void |
| 84 | read_fifo_embsd(struct hfc_multi *hc, u_char *data, int len) |
| 85 | { |
| 86 | hc->immap->im_ioport.iop_padat |= PA_XHFC_A0; |
| 87 | *hc->xhfc_memaddr = A_FIFO_DATA0; |
| 88 | hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0); |
| 89 | while (len) { |
| 90 | *data = (u_char)(*hc->xhfc_memdata); |
| 91 | data++; |
| 92 | len--; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | static int |
| 97 | setup_embedded(struct hfc_multi *hc, struct hm_map *m) |
| 98 | { |
| 99 | printk(KERN_INFO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 100 | "HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n", |
| 101 | m->vendor_name, m->card_name, m->clock2 ? "double" : "normal"); |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 102 | |
| 103 | hc->pci_dev = NULL; |
| 104 | if (m->clock2) |
| 105 | test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip); |
| 106 | |
| 107 | hc->leds = m->leds; |
| 108 | hc->ledstate = 0xAFFEAFFE; |
| 109 | hc->opticalsupport = m->opticalsupport; |
| 110 | |
| 111 | hc->pci_iobase = 0; |
| 112 | hc->pci_membase = 0; |
| 113 | hc->xhfc_membase = NULL; |
| 114 | hc->xhfc_memaddr = NULL; |
| 115 | hc->xhfc_memdata = NULL; |
| 116 | |
| 117 | /* set memory access methods */ |
| 118 | if (m->io_mode) /* use mode from card config */ |
| 119 | hc->io_mode = m->io_mode; |
| 120 | switch (hc->io_mode) { |
| 121 | case HFC_IO_MODE_EMBSD: |
| 122 | test_and_set_bit(HFC_CHIP_EMBSD, &hc->chip); |
| 123 | hc->slots = 128; /* required */ |
| 124 | /* fall through */ |
| 125 | hc->HFC_outb = HFC_outb_embsd; |
| 126 | hc->HFC_inb = HFC_inb_embsd; |
| 127 | hc->HFC_inw = HFC_inw_embsd; |
| 128 | hc->HFC_wait = HFC_wait_embsd; |
| 129 | hc->read_fifo = read_fifo_embsd; |
| 130 | hc->write_fifo = write_fifo_embsd; |
| 131 | hc->xhfc_origmembase = XHFC_MEMBASE + XHFC_OFFSET * hc->id; |
| 132 | hc->xhfc_membase = (u_char *)ioremap(hc->xhfc_origmembase, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 133 | XHFC_MEMSIZE); |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 134 | if (!hc->xhfc_membase) { |
| 135 | printk(KERN_WARNING |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 136 | "HFC-multi: failed to remap xhfc address space. " |
| 137 | "(internal error)\n"); |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 138 | return -EIO; |
| 139 | } |
| 140 | hc->xhfc_memaddr = (u_long *)(hc->xhfc_membase + 4); |
| 141 | hc->xhfc_memdata = (u_long *)(hc->xhfc_membase); |
| 142 | printk(KERN_INFO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 143 | "HFC-multi: xhfc_membase:%#lx xhfc_origmembase:%#lx " |
| 144 | "xhfc_memaddr:%#lx xhfc_memdata:%#lx\n", |
| 145 | (u_long)hc->xhfc_membase, hc->xhfc_origmembase, |
| 146 | (u_long)hc->xhfc_memaddr, (u_long)hc->xhfc_memdata); |
Karsten Keil | db9bb63 | 2009-05-22 11:04:53 +0000 | [diff] [blame] | 147 | break; |
| 148 | default: |
| 149 | printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n"); |
| 150 | return -EIO; |
| 151 | } |
| 152 | |
| 153 | /* Prepare the MPC8XX PortA 10 as output (address/data selector) */ |
| 154 | hc->immap = (struct immap *)(IMAP_ADDR); |
| 155 | hc->immap->im_ioport.iop_papar &= ~(PA_XHFC_A0); |
| 156 | hc->immap->im_ioport.iop_paodr &= ~(PA_XHFC_A0); |
| 157 | hc->immap->im_ioport.iop_padir |= PA_XHFC_A0; |
| 158 | |
| 159 | /* Prepare the MPC8xx PortB __X__ as input (ISDN__X__IRQ) */ |
| 160 | hc->pb_irqmsk = (PB_XHFC_IRQ1 << hc->id); |
| 161 | hc->immap->im_cpm.cp_pbpar &= ~(hc->pb_irqmsk); |
| 162 | hc->immap->im_cpm.cp_pbodr &= ~(hc->pb_irqmsk); |
| 163 | hc->immap->im_cpm.cp_pbdir &= ~(hc->pb_irqmsk); |
| 164 | |
| 165 | /* At this point the needed config is done */ |
| 166 | /* fifos are still not enabled */ |
| 167 | return 0; |
| 168 | } |