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Diffstat (limited to 'arch/powerpc/platforms/powermac/feature.c')
-rw-r--r--arch/powerpc/platforms/powermac/feature.c65
1 files changed, 48 insertions, 17 deletions
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index b1f896952b1b7..d2915d64d45e3 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -101,7 +101,8 @@ static const char *macio_names[] =
"Keylargo",
"Pangea",
"Intrepid",
- "K2"
+ "K2",
+ "Shasta",
};
@@ -119,7 +120,7 @@ static const char *macio_names[] =
static struct device_node *uninorth_node;
static u32 __iomem *uninorth_base;
static u32 uninorth_rev;
-static int uninorth_u3;
+static int uninorth_maj;
static void __iomem *u3_ht;
/*
@@ -1399,8 +1400,15 @@ static long g5_fw_enable(struct device_node *node, long param, long value)
static long g5_mpic_enable(struct device_node *node, long param, long value)
{
unsigned long flags;
+ struct device_node *parent = of_get_parent(node);
+ int is_u3;
- if (node->parent == NULL || strcmp(node->parent->name, "u3"))
+ if (parent == NULL)
+ return 0;
+ is_u3 = strcmp(parent->name, "u3") == 0 ||
+ strcmp(parent->name, "u4") == 0;
+ of_node_put(parent);
+ if (!is_u3)
return 0;
LOCK(flags);
@@ -1464,7 +1472,7 @@ static long g5_i2s_enable(struct device_node *node, long param, long value)
},
};
- if (macio->type != macio_keylargo2 /* && macio->type != macio_shasta*/)
+ if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
return -ENODEV;
if (strncmp(node->name, "i2s-", 4))
return -ENODEV;
@@ -1473,11 +1481,9 @@ static long g5_i2s_enable(struct device_node *node, long param, long value)
case 0:
case 1:
break;
-#if 0
case 2:
if (macio->type == macio_shasta)
break;
-#endif
default:
return -ENODEV;
}
@@ -1508,7 +1514,7 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
struct device_node *np;
macio = &macio_chips[0];
- if (macio->type != macio_keylargo2)
+ if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
return -ENODEV;
np = find_path_device("/cpus");
@@ -1547,7 +1553,8 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
*/
void g5_phy_disable_cpu1(void)
{
- UN_OUT(U3_API_PHY_CONFIG_1, 0);
+ if (uninorth_maj == 3)
+ UN_OUT(U3_API_PHY_CONFIG_1, 0);
}
#endif /* CONFIG_POWER4 */
@@ -2462,6 +2469,14 @@ static struct pmac_mb_def pmac_mb_defs[] = {
PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
0,
},
+ { "PowerMac11,2", "PowerMac G5 Dual Core",
+ PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
+ 0,
+ },
+ { "PowerMac12,1", "iMac G5 (iSight)",
+ PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
+ 0,
+ },
{ "RackMac3,1", "XServe G5",
PMAC_TYPE_XSERVE_G5, g5_features,
0,
@@ -2574,6 +2589,11 @@ static int __init probe_motherboard(void)
pmac_mb.model_name = "Unknown K2-based";
pmac_mb.features = g5_features;
break;
+ case macio_shasta:
+ pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
+ pmac_mb.model_name = "Unknown Shasta-based";
+ pmac_mb.features = g5_features;
+ break;
#endif /* CONFIG_POWER4 */
default:
return -ENODEV;
@@ -2651,7 +2671,12 @@ static void __init probe_uninorth(void)
/* Locate G5 u3 */
if (uninorth_node == NULL) {
uninorth_node = of_find_node_by_name(NULL, "u3");
- uninorth_u3 = 1;
+ uninorth_maj = 3;
+ }
+ /* Locate G5 u4 */
+ if (uninorth_node == NULL) {
+ uninorth_node = of_find_node_by_name(NULL, "u4");
+ uninorth_maj = 4;
}
if (uninorth_node == NULL)
return;
@@ -2664,12 +2689,13 @@ static void __init probe_uninorth(void)
return;
uninorth_base = ioremap(address, 0x40000);
uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
- if (uninorth_u3)
+ if (uninorth_maj == 3 || uninorth_maj == 4)
u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
- printk(KERN_INFO "Found %s memory controller & host bridge,"
- " revision: %d\n", uninorth_u3 ? "U3" : "UniNorth",
- uninorth_rev);
+ printk(KERN_INFO "Found %s memory controller & host bridge"
+ " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
+ uninorth_maj == 4 ? "U4" : "UniNorth",
+ (unsigned int)address, uninorth_rev);
printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
/* Set the arbitrer QAck delay according to what Apple does
@@ -2677,7 +2703,8 @@ static void __init probe_uninorth(void)
if (uninorth_rev < 0x11) {
actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
- UNI_N_ARB_CTRL_QACK_DELAY) << UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
+ UNI_N_ARB_CTRL_QACK_DELAY) <<
+ UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
UN_OUT(UNI_N_ARB_CTRL, actrl);
}
@@ -2685,7 +2712,8 @@ static void __init probe_uninorth(void)
* revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
* memory timeout
*/
- if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) || uninorth_rev == 0xc0)
+ if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
+ uninorth_rev == 0xc0)
UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
}
@@ -2736,12 +2764,14 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ
node->full_name);
return;
}
- if (type == macio_keylargo) {
+ if (type == macio_keylargo || type == macio_keylargo2) {
u32 *did = (u32 *)get_property(node, "device-id", NULL);
if (*did == 0x00000025)
type = macio_pangea;
if (*did == 0x0000003e)
type = macio_intrepid;
+ if (*did == 0x0000004f)
+ type = macio_shasta;
}
macio_chips[i].of_node = node;
macio_chips[i].type = type;
@@ -2840,7 +2870,8 @@ set_initial_features(void)
}
#ifdef CONFIG_POWER4
- if (macio_chips[0].type == macio_keylargo2) {
+ if (macio_chips[0].type == macio_keylargo2 ||
+ macio_chips[0].type == macio_shasta) {
#ifndef CONFIG_SMP
/* On SMP machines running UP, we have the second CPU eating
* bus cycles. We need to take it off the bus. This is done
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-06 16:02:57 +0000