mISDN: Add XHFC support for embedded Speech-Design board to hfcmulti

New version without emulating arch specific stuff for the other
architectures, the special IO and init functions for the 8xx
microcontroller are in a separate include file.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 167 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h b/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
new file mode 100644
index 00000000000..45ddced956d
--- /dev/null
+++ b/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
@@ -0,0 +1,167 @@
+/*
+ * For License see notice in hfc_multi.c
+ *
+ * special IO and init functions for the embedded XHFC board
+ * from Speech Design
+ *
+ */
+
+#include <asm/8xx_immap.h>
+
+/* Change this to the value used by your board */
+#ifndef IMAP_ADDR
+#define IMAP_ADDR	0xFFF00000
+#endif
+
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val,
+		const char *function, int line)
+#else
+HFC_outb_embsd(struct hfc_multi *hc, u_char reg, u_char val)
+#endif
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	writeb(reg, hc->xhfc_memaddr);
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	writeb(val, hc->xhfc_memdata);
+}
+static u_char
+#ifdef HFC_REGISTER_DEBUG
+HFC_inb_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inb_embsd(struct hfc_multi *hc, u_char reg)
+#endif
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	writeb(reg, hc->xhfc_memaddr);
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	return readb(hc->xhfc_memdata);
+}
+static u_short
+#ifdef HFC_REGISTER_DEBUG
+HFC_inw_embsd(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inw_embsd(struct hfc_multi *hc, u_char reg)
+#endif
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	writeb(reg, hc->xhfc_memaddr);
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	return readb(hc->xhfc_memdata);
+}
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_wait_embsd(struct hfc_multi *hc, const char *function, int line)
+#else
+HFC_wait_embsd(struct hfc_multi *hc)
+#endif
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	writeb(R_STATUS, hc->xhfc_memaddr);
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	while (readb(hc->xhfc_memdata) & V_BUSY)
+		cpu_relax();
+}
+
+/* write fifo data (EMBSD) */
+void
+write_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	*hc->xhfc_memaddr = A_FIFO_DATA0;
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	while (len) {
+		*hc->xhfc_memdata = *data;
+		data++;
+		len--;
+	}
+}
+
+/* read fifo data (EMBSD) */
+void
+read_fifo_embsd(struct hfc_multi *hc, u_char *data, int len)
+{
+	hc->immap->im_ioport.iop_padat |= PA_XHFC_A0;
+	*hc->xhfc_memaddr = A_FIFO_DATA0;
+	hc->immap->im_ioport.iop_padat &= ~(PA_XHFC_A0);
+	while (len) {
+		*data = (u_char)(*hc->xhfc_memdata);
+		data++;
+		len--;
+	}
+}
+
+static int
+setup_embedded(struct hfc_multi *hc, struct hm_map *m)
+{
+	printk(KERN_INFO
+	    "HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n",
+	    m->vendor_name, m->card_name, m->clock2 ? "double" : "normal");
+
+	hc->pci_dev = NULL;
+	if (m->clock2)
+		test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip);
+
+	hc->leds = m->leds;
+	hc->ledstate = 0xAFFEAFFE;
+	hc->opticalsupport = m->opticalsupport;
+
+	hc->pci_iobase = 0;
+	hc->pci_membase = 0;
+	hc->xhfc_membase = NULL;
+	hc->xhfc_memaddr = NULL;
+	hc->xhfc_memdata = NULL;
+
+	/* set memory access methods */
+	if (m->io_mode) /* use mode from card config */
+		hc->io_mode = m->io_mode;
+	switch (hc->io_mode) {
+	case HFC_IO_MODE_EMBSD:
+		test_and_set_bit(HFC_CHIP_EMBSD, &hc->chip);
+		hc->slots = 128; /* required */
+		/* fall through */
+		hc->HFC_outb = HFC_outb_embsd;
+		hc->HFC_inb = HFC_inb_embsd;
+		hc->HFC_inw = HFC_inw_embsd;
+		hc->HFC_wait = HFC_wait_embsd;
+		hc->read_fifo = read_fifo_embsd;
+		hc->write_fifo = write_fifo_embsd;
+		hc->xhfc_origmembase = XHFC_MEMBASE + XHFC_OFFSET * hc->id;
+		hc->xhfc_membase = (u_char *)ioremap(hc->xhfc_origmembase,
+				XHFC_MEMSIZE);
+		if (!hc->xhfc_membase) {
+			printk(KERN_WARNING
+			    "HFC-multi: failed to remap xhfc address space. "
+			    "(internal error)\n");
+			return -EIO;
+		}
+		hc->xhfc_memaddr = (u_long *)(hc->xhfc_membase + 4);
+		hc->xhfc_memdata = (u_long *)(hc->xhfc_membase);
+		printk(KERN_INFO
+		    "HFC-multi: xhfc_membase:%#lx xhfc_origmembase:%#lx "
+		    "xhfc_memaddr:%#lx xhfc_memdata:%#lx\n",
+		    (u_long)hc->xhfc_membase, hc->xhfc_origmembase,
+		    (u_long)hc->xhfc_memaddr, (u_long)hc->xhfc_memdata);
+		break;
+	default:
+		printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n");
+		return -EIO;
+	}
+
+	/* Prepare the MPC8XX PortA 10 as output (address/data selector) */
+	hc->immap = (struct immap *)(IMAP_ADDR);
+	hc->immap->im_ioport.iop_papar &= ~(PA_XHFC_A0);
+	hc->immap->im_ioport.iop_paodr &= ~(PA_XHFC_A0);
+	hc->immap->im_ioport.iop_padir |=   PA_XHFC_A0;
+
+	/* Prepare the MPC8xx PortB __X__ as input (ISDN__X__IRQ) */
+	hc->pb_irqmsk = (PB_XHFC_IRQ1 << hc->id);
+	hc->immap->im_cpm.cp_pbpar &= ~(hc->pb_irqmsk);
+	hc->immap->im_cpm.cp_pbodr &= ~(hc->pb_irqmsk);
+	hc->immap->im_cpm.cp_pbdir &= ~(hc->pb_irqmsk);
+
+	/* At this point the needed config is done */
+	/* fifos are still not enabled */
+	return 0;
+}