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[PATCH] powerpc: Experimental support for new G5 Macs (#2)

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This adds some very basic support for the new machines, including the
Quad G5 (tested), and other new dual core based machines and iMac G5
iSight (untested). This is still experimental !  There is no thermal
control yet, there is no proper handing of MSIs, etc.. but it
boots, I have all 4 cores up on my machine. Compared to the previous
version of this patch, this one adds DART IOMMU support for the U4
chipset and thus should work fine on setups with more than 2Gb of RAM.

Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Benjamin Herrenschmidt 2005-12-14 13:10:10 +11:00 • committed by Paul Mackerras
commit 1beb6a7d6c
20 changed files with 807 additions and 377 deletions
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8
drivers/macintosh/smu.c
View file

@ -53,7 +53,7 @@
#undef DEBUG_SMU
#ifdef DEBUG_SMU
#define DPRINTK(fmt, args...) do { udbg_printf(KERN_DEBUG fmt , ##args); } while (0)
#define DPRINTK(fmt, args...) do { printk(KERN_DEBUG fmt , ##args); } while (0)
#else
#define DPRINTK(fmt, args...) do { } while (0)
#endif
@ -909,10 +909,13 @@ static struct smu_sdbp_header *smu_create_sdb_partition(int id)
struct property *prop;
/* First query the partition info */
DPRINTK("SMU: Query partition infos ... (irq=%d)\n", smu->db_irq);
smu_queue_simple(&cmd, SMU_CMD_PARTITION_COMMAND, 2,
smu_done_complete, &comp,
SMU_CMD_PARTITION_LATEST, id);
wait_for_completion(&comp);
DPRINTK("SMU: done, status: %d, reply_len: %d\n",
cmd.cmd.status, cmd.cmd.reply_len);
/* Partition doesn't exist (or other error) */
if (cmd.cmd.status != 0 || cmd.cmd.reply_len != 6)
@ -975,6 +978,8 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
sprintf(pname, "sdb-partition-%02x", id);
DPRINTK("smu_get_sdb_partition(%02x)\n", id);
if (interruptible) {
int rc;
rc = down_interruptible(&smu_part_access);
@ -986,6 +991,7 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
part = (struct smu_sdbp_header *)get_property(smu->of_node,
pname, size);
if (part == NULL) {
DPRINTK("trying to extract from SMU ...\n");
part = smu_create_sdb_partition(id);
if (part != NULL && size)
*size = part->len << 2;