Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-m68knommu/ide.h b/include/asm-m68knommu/ide.h
new file mode 100644
index 0000000..b1cbf8b
--- /dev/null
+++ b/include/asm-m68knommu/ide.h
@@ -0,0 +1,444 @@
+/****************************************************************************/
+/*
+ * linux/include/asm-m68knommu/ide.h
+ *
+ * Copyright (C) 1994-1996 Linus Torvalds & authors
+ * Copyright (C) 2001 Lineo Inc., davidm@uclinux.org
+ */
+/****************************************************************************/
+#ifndef _M68KNOMMU_IDE_H
+#define _M68KNOMMU_IDE_H
+
+#ifdef __KERNEL__
+/****************************************************************************/
+
+#include <linux/config.h>
+#include <linux/interrupt.h>
+
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+/****************************************************************************/
+/*
+ * some coldfire specifics
+ */
+
+#ifdef CONFIG_COLDFIRE
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+
+/*
+ * Save some space, only have 1 interface
+ */
+#define MAX_HWIFS 1 /* we only have one interface for now */
+
+#ifdef CONFIG_SECUREEDGEMP3
+#define MCFSIM_LOCALCS MCFSIM_CSCR4
+#else
+#define MCFSIM_LOCALCS MCFSIM_CSCR6
+#endif
+
+#endif /* CONFIG_COLDFIRE */
+
+/****************************************************************************/
+/*
+ * Fix up things that may not have been provided
+ */
+
+#ifndef MAX_HWIFS
+#define MAX_HWIFS 4 /* same as the other archs */
+#endif
+
+#undef SUPPORT_SLOW_DATA_PORTS
+#define SUPPORT_SLOW_DATA_PORTS 0
+
+#undef SUPPORT_VLB_SYNC
+#define SUPPORT_VLB_SYNC 0
+
+/* this definition is used only on startup .. */
+#undef HD_DATA
+#define HD_DATA NULL
+
+#define DBGIDE(fmt,a...)
+// #define DBGIDE(fmt,a...) printk(fmt, ##a)
+#define IDE_INLINE __inline__
+// #define IDE_INLINE
+
+/****************************************************************************/
+
+typedef union {
+ unsigned all : 8; /* all of the bits together */
+ struct {
+ unsigned bit7 : 1; /* always 1 */
+ unsigned lba : 1; /* using LBA instead of CHS */
+ unsigned bit5 : 1; /* always 1 */
+ unsigned unit : 1; /* drive select number, 0 or 1 */
+ unsigned head : 4; /* always zeros here */
+ } b;
+} select_t;
+
+/*
+ * our list of ports/irq's for different boards
+ */
+
+static struct m68k_ide_defaults {
+ ide_ioreg_t base;
+ int irq;
+} m68k_ide_defaults[MAX_HWIFS] = {
+#if defined(CONFIG_SECUREEDGEMP3)
+ { ((ide_ioreg_t)0x30800000), 29 },
+#elif defined(CONFIG_eLIA)
+ { ((ide_ioreg_t)0x30c00000), 29 },
+#else
+ { ((ide_ioreg_t)0x0), 0 }
+#endif
+};
+
+/****************************************************************************/
+
+static IDE_INLINE int ide_default_irq(ide_ioreg_t base)
+{
+ int i;
+
+ for (i = 0; i < MAX_HWIFS; i++)
+ if (m68k_ide_defaults[i].base == base)
+ return(m68k_ide_defaults[i].irq);
+ return 0;
+}
+
+static IDE_INLINE ide_ioreg_t ide_default_io_base(int index)
+{
+ if (index >= 0 && index < MAX_HWIFS)
+ return(m68k_ide_defaults[index].base);
+ return 0;
+}
+
+
+/*
+ * Set up a hw structure for a specified data port, control port and IRQ.
+ * This should follow whatever the default interface uses.
+ */
+static IDE_INLINE void ide_init_hwif_ports(
+ hw_regs_t *hw,
+ ide_ioreg_t data_port,
+ ide_ioreg_t ctrl_port,
+ int *irq)
+{
+ ide_ioreg_t reg = data_port;
+ int i;
+
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+ hw->io_ports[i] = reg;
+ reg += 1;
+ }
+ if (ctrl_port) {
+ hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
+ } else {
+ hw->io_ports[IDE_CONTROL_OFFSET] = data_port + 0xe;
+ }
+}
+
+#define ide_init_default_irq(base) ide_default_irq(base)
+
+static IDE_INLINE int
+ide_request_irq(
+ unsigned int irq,
+ void (*handler)(int, void *, struct pt_regs *),
+ unsigned long flags,
+ const char *device,
+ void *dev_id)
+{
+#ifdef CONFIG_COLDFIRE
+ mcf_autovector(irq);
+#endif
+ return(request_irq(irq, handler, flags, device, dev_id));
+}
+
+
+static IDE_INLINE void
+ide_free_irq(unsigned int irq, void *dev_id)
+{
+ free_irq(irq, dev_id);
+}
+
+
+static IDE_INLINE int
+ide_check_region(ide_ioreg_t from, unsigned int extent)
+{
+ return 0;
+}
+
+
+static IDE_INLINE void
+ide_request_region(ide_ioreg_t from, unsigned int extent, const char *name)
+{
+}
+
+
+static IDE_INLINE void
+ide_release_region(ide_ioreg_t from, unsigned int extent)
+{
+}
+
+
+static IDE_INLINE void
+ide_fix_driveid(struct hd_driveid *id)
+{
+#ifdef CONFIG_COLDFIRE
+ int i, n;
+ unsigned short *wp = (unsigned short *) id;
+ int avoid[] = {49, 51, 52, 59, -1 }; /* do not swap these words */
+
+ /* Need to byte swap shorts, but not char fields */
+ for (i = n = 0; i < sizeof(*id) / sizeof(*wp); i++, wp++) {
+ if (avoid[n] == i) {
+ n++;
+ continue;
+ }
+ *wp = ((*wp & 0xff) << 8) | ((*wp >> 8) & 0xff);
+ }
+ /* have to word swap the one 32 bit field */
+ id->lba_capacity = ((id->lba_capacity & 0xffff) << 16) |
+ ((id->lba_capacity >> 16) & 0xffff);
+#endif
+}
+
+
+static IDE_INLINE void
+ide_release_lock (int *ide_lock)
+{
+}
+
+
+static IDE_INLINE void
+ide_get_lock(
+ int *ide_lock,
+ void (*handler)(int, void *, struct pt_regs *),
+ void *data)
+{
+}
+
+
+#define ide_ack_intr(hwif) \
+ ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
+#define ide__sti() __sti()
+
+/****************************************************************************/
+/*
+ * System specific IO requirements
+ */
+
+#ifdef CONFIG_COLDFIRE
+
+#ifdef CONFIG_SECUREEDGEMP3
+
+/* Replace standard IO functions for funky mapping of MP3 board */
+#undef outb
+#undef outb_p
+#undef inb
+#undef inb_p
+
+#define outb(v, a) ide_outb(v, (unsigned long) (a))
+#define outb_p(v, a) ide_outb(v, (unsigned long) (a))
+#define inb(a) ide_inb((unsigned long) (a))
+#define inb_p(a) ide_inb((unsigned long) (a))
+
+#define ADDR8_PTR(addr) (((addr) & 0x1) ? (0x8000 + (addr) - 1) : (addr))
+#define ADDR16_PTR(addr) (addr)
+#define ADDR32_PTR(addr) (addr)
+#define SWAP8(w) ((((w) & 0xffff) << 8) | (((w) & 0xffff) >> 8))
+#define SWAP16(w) (w)
+#define SWAP32(w) (w)
+
+
+static IDE_INLINE void
+ide_outb(unsigned int val, unsigned int addr)
+{
+ volatile unsigned short *rp;
+
+ DBGIDE("%s(val=%x,addr=%x)\n", __FUNCTION__, val, addr);
+ rp = (volatile unsigned short *) ADDR8_PTR(addr);
+ *rp = SWAP8(val);
+}
+
+
+static IDE_INLINE int
+ide_inb(unsigned int addr)
+{
+ volatile unsigned short *rp, val;
+
+ DBGIDE("%s(addr=%x)\n", __FUNCTION__, addr);
+ rp = (volatile unsigned short *) ADDR8_PTR(addr);
+ val = *rp;
+ return(SWAP8(val));
+}
+
+
+static IDE_INLINE void
+ide_outw(unsigned int val, unsigned int addr)
+{
+ volatile unsigned short *rp;
+
+ DBGIDE("%s(val=%x,addr=%x)\n", __FUNCTION__, val, addr);
+ rp = (volatile unsigned short *) ADDR16_PTR(addr);
+ *rp = SWAP16(val);
+}
+
+static IDE_INLINE void
+ide_outsw(unsigned int addr, const void *vbuf, unsigned long len)
+{
+ volatile unsigned short *rp, val;
+ unsigned short *buf;
+
+ DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
+ buf = (unsigned short *) vbuf;
+ rp = (volatile unsigned short *) ADDR16_PTR(addr);
+ for (; (len > 0); len--) {
+ val = *buf++;
+ *rp = SWAP16(val);
+ }
+}
+
+static IDE_INLINE int
+ide_inw(unsigned int addr)
+{
+ volatile unsigned short *rp, val;
+
+ DBGIDE("%s(addr=%x)\n", __FUNCTION__, addr);
+ rp = (volatile unsigned short *) ADDR16_PTR(addr);
+ val = *rp;
+ return(SWAP16(val));
+}
+
+static IDE_INLINE void
+ide_insw(unsigned int addr, void *vbuf, unsigned long len)
+{
+ volatile unsigned short *rp;
+ unsigned short w, *buf;
+
+ DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
+ buf = (unsigned short *) vbuf;
+ rp = (volatile unsigned short *) ADDR16_PTR(addr);
+ for (; (len > 0); len--) {
+ w = *rp;
+ *buf++ = SWAP16(w);
+ }
+}
+
+static IDE_INLINE void
+ide_insl(unsigned int addr, void *vbuf, unsigned long len)
+{
+ volatile unsigned long *rp;
+ unsigned long w, *buf;
+
+ DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
+ buf = (unsigned long *) vbuf;
+ rp = (volatile unsigned long *) ADDR32_PTR(addr);
+ for (; (len > 0); len--) {
+ w = *rp;
+ *buf++ = SWAP32(w);
+ }
+}
+
+static IDE_INLINE void
+ide_outsl(unsigned int addr, const void *vbuf, unsigned long len)
+{
+ volatile unsigned long *rp, val;
+ unsigned long *buf;
+
+ DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
+ buf = (unsigned long *) vbuf;
+ rp = (volatile unsigned long *) ADDR32_PTR(addr);
+ for (; (len > 0); len--) {
+ val = *buf++;
+ *rp = SWAP32(val);
+ }
+}
+
+#elif CONFIG_eLIA
+
+/* 8/16 bit acesses are controlled by flicking bits in the CS register */
+#define ACCESS_MODE_16BIT() \
+ *((volatile unsigned short *) (MCF_MBAR + MCFSIM_LOCALCS)) = 0x0080
+#define ACCESS_MODE_8BIT() \
+ *((volatile unsigned short *) (MCF_MBAR + MCFSIM_LOCALCS)) = 0x0040
+
+
+static IDE_INLINE void
+ide_outw(unsigned int val, unsigned int addr)
+{
+ ACCESS_MODE_16BIT();
+ outw(val, addr);
+ ACCESS_MODE_8BIT();
+}
+
+static IDE_INLINE void
+ide_outsw(unsigned int addr, const void *vbuf, unsigned long len)
+{
+ ACCESS_MODE_16BIT();
+ outsw(addr, vbuf, len);
+ ACCESS_MODE_8BIT();
+}
+
+static IDE_INLINE int
+ide_inw(unsigned int addr)
+{
+ int ret;
+
+ ACCESS_MODE_16BIT();
+ ret = inw(addr);
+ ACCESS_MODE_8BIT();
+ return(ret);
+}
+
+static IDE_INLINE void
+ide_insw(unsigned int addr, void *vbuf, unsigned long len)
+{
+ ACCESS_MODE_16BIT();
+ insw(addr, vbuf, len);
+ ACCESS_MODE_8BIT();
+}
+
+static IDE_INLINE void
+ide_insl(unsigned int addr, void *vbuf, unsigned long len)
+{
+ ACCESS_MODE_16BIT();
+ insl(addr, vbuf, len);
+ ACCESS_MODE_8BIT();
+}
+
+static IDE_INLINE void
+ide_outsl(unsigned int addr, const void *vbuf, unsigned long len)
+{
+ ACCESS_MODE_16BIT();
+ outsl(addr, vbuf, len);
+ ACCESS_MODE_8BIT();
+}
+
+#endif /* CONFIG_SECUREEDGEMP3 */
+
+#undef outw
+#undef outw_p
+#undef outsw
+#undef inw
+#undef inw_p
+#undef insw
+#undef insl
+#undef outsl
+
+#define outw(v, a) ide_outw(v, (unsigned long) (a))
+#define outw_p(v, a) ide_outw(v, (unsigned long) (a))
+#define outsw(a, b, n) ide_outsw((unsigned long) (a), b, n)
+#define inw(a) ide_inw((unsigned long) (a))
+#define inw_p(a) ide_inw((unsigned long) (a))
+#define insw(a, b, n) ide_insw((unsigned long) (a), b, n)
+#define insl(a, b, n) ide_insl((unsigned long) (a), b, n)
+#define outsl(a, b, n) ide_outsl((unsigned long) (a), b, n)
+
+#endif CONFIG_COLDFIRE
+
+/****************************************************************************/
+#endif /* __KERNEL__ */
+#endif /* _M68KNOMMU_IDE_H */
+/****************************************************************************/