[PATCH v2] macio ide: Fix dev tree entries for macio ide ports

[BALATON Zoltan]

Only add the two ide ports that are emulated by QEMU to the device
tree to avoid clients trying to access the non-existent third one and
fix their names and properties for mac99 to match those used by Apple.
This makes MorphOS able to find and use these.

Signed-off-by: BALATON Zoltan 
---

v2: improved comment about the naming of device tree nodes

References:
http://web.archive.org/web/20081120133742/http://penguinppc.org/historical/d...
---
 openbios-devel/drivers/ide.c   |  7 ++++++-
 openbios-devel/drivers/macio.c | 17 ++++++++++-------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/openbios-devel/drivers/ide.c b/openbios-devel/drivers/ide.c
index 0e0f0cf..327c64a 100644
--- a/openbios-devel/drivers/ide.c
+++ b/openbios-devel/drivers/ide.c
@@ -1526,6 +1526,10 @@ int macio_ide_init(const char *path, uint32_t addr, int nb_channels)
    u32 props[8];
    struct ide_channel *chan;

+	/* IDE ports on Macs are numbered from 3.
+	 * Also see comments in macio.c:openpic_init() */
+	current_channel = 3;
+
    for (i = 0; i < nb_channels; i++, current_channel++) {

chan = malloc(sizeof(struct ide_channel));
@@ -1574,7 +1578,8 @@ int macio_ide_init(const char *path, uint32_t addr, int nb_channels)

dnode = find_dev(nodebuff);

-		set_property(dnode, "compatible", "heathrow-ata", 13);
+		set_property(dnode, "compatible", (is_oldworld() ?
+			     "heathrow-ata" : "keylargo-ata"), 13);

props[0] = 0x00000526;
    	props[1] = 0x00000085;
diff --git a/openbios-devel/drivers/macio.c b/openbios-devel/drivers/macio.c
index 00d7149..b689f04 100644
--- a/openbios-devel/drivers/macio.c
+++ b/openbios-devel/drivers/macio.c
@@ -130,7 +130,7 @@ macio_nvram_put(char *buf)
         else
                 it_shift = NW_IO_NVRAM_SHIFT;

-	for (i=0; i< arch_nvram_size() ; i++)
+	for (i=0; i < arch_nvram_size(); i++)
    	nvram[i << it_shift] = buf[i];
 #ifdef DUMP_NVRAM
    printk("new nvram:\n");
@@ -202,13 +202,16 @@ openpic_init(const char *path, phys_addr_t addr)
         target_node = find_dev("/pci/mac-io/escc/ch-b");
         set_int_property(target_node, "interrupt-parent", dnode);

-        target_node = find_dev("/pci/mac-io/ata-1");
-        set_int_property(target_node, "interrupt-parent", dnode);
-
-        target_node = find_dev("/pci/mac-io/ata-2");
+        /* QEMU only emulates 2 of the 3 ata buses currently */
+        /* On a new world Mac these are not numbered but named by the
+         * ATA version they support. Thus we have: ata-3, ata-3, ata-4
+         * On g3beige they all called just ide.
+         * We take ata-3 and ata-4 which seems to work for both
+         * at least for clients we care about */
+        target_node = find_dev("/pci/mac-io/ata-3");
         set_int_property(target_node, "interrupt-parent", dnode);

-        target_node = find_dev("/pci/mac-io/ata-3");
+        target_node = find_dev("/pci/mac-io/ata-4");
         set_int_property(target_node, "interrupt-parent", dnode);

target_node = find_dev("/pci/mac-io/via-cuda");
@@ -311,7 +314,7 @@ ob_macio_keylargo_init(const char *path, phys_addr_t addr)
         /* The NewWorld NVRAM is not located in the MacIO device */
         macio_nvram_init("", 0);
         escc_init(path, addr);
-        macio_ide_init(path, addr, 3);
+        macio_ide_init(path, addr, 2);
         openpic_init(path, addr);
    ob_unin_init();
 }