summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/powerpc/shared/motorola/motorola.c
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/lib/libbsp/powerpc/shared/motorola/motorola.c')
-rw-r--r--c/src/lib/libbsp/powerpc/shared/motorola/motorola.c197
1 files changed, 174 insertions, 23 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/motorola/motorola.c b/c/src/lib/libbsp/powerpc/shared/motorola/motorola.c
index d45e09044b..a6a4ce9868 100644
--- a/c/src/lib/libbsp/powerpc/shared/motorola/motorola.c
+++ b/c/src/lib/libbsp/powerpc/shared/motorola/motorola.c
@@ -18,42 +18,178 @@
#include <libcpu/io.h>
#include <string.h>
+
+/*
+** Board-specific table that maps interrupt names to onboard pci
+** peripherals as well as local pci busses. This table is used at
+** bspstart() to configure the interrupt name & pin for all devices that
+** do not have it already specified. If the device is already
+** configured, we leave it alone but sanity check & print a warning if
+** we don't know about the pin/line the card gives us.
+**
+** bus = the bus number of the slot/device in question
+**
+** slot :
+**
+** If slot != -1, it indicates a device on the given bus in that slot
+** is to use one of the listed interrupt names given an interrupt pin.
+**
+** If slot == -1, it means devices on this bus can occupy any slot-
+** and for pci, this means the particular interrupt pin that the
+** device signals is therefore dependent on the particular slot. To
+** work from the slot to the interrupt pin, the swizzle table is used.
+** Once the bus and interrupt pin is known, the correct interrupt name
+** can be pulled from the table. The swizzle table relates the
+** interrupt pin from the device to the particular interrupt
+** controller interrupt pin- so it is quite reasonable for a device on
+** bus 1 signalling interrupt pin 1 to show up at the interrupt
+** controller as pin 4- this is why the int pin field varies for
+** bridged pci busses.
+**
+**
+** opts = bitmap of options that control the configuration of this
+** slot/bus.
+**
+** pin_routes[] = array of pin & vectors that may serve this slot;
+**
+** pin = the pin # which delivers an interrupt on this route, A=1,
+** B=2, C=3, D=4
+**
+** int_name[4] = an array of up to 4 bsp-specific interrupt name
+** that can be used by this route. Unused entries should be -1.
+** The array is of primary use for slots that can be vectored thru
+** multiple interrupt lines over the interrupt pin supplied by the
+** record. If more than one entry is present, the most preferable
+** should supplied first.
+**
+*/
+
+#define NULL_PINMAP {-1,{-1,-1,-1,-1}}
+#define NULL_INTMAP {-1,-1,-1,{}}
+
+
+
+static struct _int_map mcp750_intmap[] = {
+
+ { 0, 16, 0, {{1, {5, 19,-1,-1}}, /* pmc slot */
+ NULL_PINMAP}},
+
+ { 0, 14, 0, {{1, {10,18,-1,-1}}, /* onboard ethernet */
+ NULL_PINMAP}},
+
+ { 1, -1, 0, {{1, {24,-1,-1,-1}},
+ {2, {25,-1,-1,-1}},
+ {3, {26,-1,-1,-1}},
+ {4, {27,-1,-1,-1}},
+ NULL_PINMAP}},
+
+ NULL_INTMAP };
+
+
+
+
+static struct _int_map mtx603_intmap[] = {
+
+ {0, 14, 0, {{1, {10,16,-1,-1}}, /* onboard ethernet */
+ NULL_PINMAP}},
+
+ {0, 12, 0, {{1, {14,18,-1,-1}}, /* onboard scsi */
+ NULL_PINMAP}},
+
+ {0, 16, 0, {{1, {25,-1,-1,-1}}, /* pci/pmc slot 1 */
+ {2, {26,-1,-1,-1}},
+ {3, {27,-1,-1,-1}},
+ {4, {28,-1,-1,-1}},
+ NULL_PINMAP}},
+
+ {0, 17, 0, {{1, {26,-1,-1,-1}}, /* pci/pmc slot 2 */
+ {2, {27,-1,-1,-1}},
+ {3, {28,-1,-1,-1}},
+ {4, {25,-1,-1,-1}},
+ NULL_PINMAP}},
+
+ {0, 18, 0, {{1, {27,-1,-1,-1}}, /* pci slot 3 */
+ {2, {28,-1,-1,-1}},
+ {3, {25,-1,-1,-1}},
+ {4, {26,-1,-1,-1}},
+ NULL_PINMAP}},
+
+ NULL_INTMAP };
+
+
+
+
+
+
+
+
+/*
+ * This table represents the standard PCI swizzle defined in the
+ * PCI bus specification. Table taken from Linux 2.4.18, prep_pci.c,
+ * the values in this table are interrupt_pin values (1 based).
+ */
+static unsigned char prep_pci_intpins[4][4] =
+{
+ { 1, 2, 3, 4 }, /* Buses 0, 4, 8, ... */
+ { 2, 3, 4, 1 }, /* Buses 1, 5, 9, ... */
+ { 3, 4, 1, 2 }, /* Buses 2, 6, 10 ... */
+ { 4, 1, 2, 3 }, /* Buses 3, 7, 11 ... */
+};
+
+static int prep_pci_swizzle(int slot, int pin)
+{
+ return prep_pci_intpins[ slot % 4 ][ pin-1 ];
+}
+
+
+
+
+
+
+
+
+
typedef struct {
/*
* 0x100 mask assumes for Raven and Hawk boards
* that the level/edge are set.
* 0x200 if this board has a Hawk chip.
*/
- int cpu_type;
- int base_type;
- const char *name;
+ int cpu_type;
+ int base_type;
+ const char *name;
+
+ struct _int_map *intmap;
+ int (*swizzler)(int, int);
} mot_info_t;
static const mot_info_t mot_boards[] = {
- {0x300, 0x00, "MVME 2400"},
- {0x010, 0x00, "Genesis"},
- {0x020, 0x00, "Powerstack (Series E)"},
- {0x040, 0x00, "Blackhawk (Powerstack)"},
- {0x050, 0x00, "Omaha (PowerStack II Pro3000)"},
- {0x060, 0x00, "Utah (Powerstack II Pro4000)"},
- {0x0A0, 0x00, "Powerstack (Series EX)"},
- {0x1E0, 0xE0, "Mesquite cPCI (MCP750)"},
- {0x1E0, 0xE1, "Sitka cPCI (MCPN750)"},
- {0x1E0, 0xE2, "Mesquite cPCI (MCP750) w/ HAC"},
- {0x1E0, 0xF6, "MTX Plus"},
- {0x1E0, 0xF7, "MTX w/o Parallel Port"},
- {0x1E0, 0xF8, "MTX w/ Parallel Port"},
- {0x1E0, 0xF9, "MVME 2300"},
- {0x1E0, 0xFA, "MVME 2300SC/2600"},
- {0x1E0, 0xFB, "MVME 2600 with MVME712M"},
- {0x1E0, 0xFC, "MVME 2600/2700 with MVME761"},
- {0x1E0, 0xFD, "MVME 3600 with MVME712M"},
- {0x1E0, 0xFE, "MVME 3600 with MVME761"},
- {0x1E0, 0xFF, "MVME 1600-001 or 1600-011"},
+ {0x300, 0x00, "MVME 2400", NULL, NULL},
+ {0x010, 0x00, "Genesis", NULL, NULL},
+ {0x020, 0x00, "Powerstack (Series E)", NULL, NULL},
+ {0x040, 0x00, "Blackhawk (Powerstack)", NULL, NULL},
+ {0x050, 0x00, "Omaha (PowerStack II Pro3000)", NULL, NULL},
+ {0x060, 0x00, "Utah (Powerstack II Pro4000)", NULL, NULL},
+ {0x0A0, 0x00, "Powerstack (Series EX)", NULL, NULL},
+ {0x1E0, 0xE0, "Mesquite cPCI (MCP750)", mcp750_intmap, prep_pci_swizzle},
+ {0x1E0, 0xE1, "Sitka cPCI (MCPN750)", mcp750_intmap, prep_pci_swizzle},
+ {0x1E0, 0xE2, "Mesquite cPCI (MCP750) w/ HAC", mcp750_intmap, prep_pci_swizzle},
+ {0x1E0, 0xF6, "MTX Plus", NULL, NULL},
+ {0x1E0, 0xF7, "MTX w/o Parallel Port", mtx603_intmap, prep_pci_swizzle},
+ {0x1E0, 0xF8, "MTX w/ Parallel Port", mtx603_intmap, prep_pci_swizzle},
+ {0x1E0, 0xF9, "MVME 2300", NULL, NULL},
+ {0x1E0, 0xFA, "MVME 2300SC/2600", NULL, NULL},
+ {0x1E0, 0xFB, "MVME 2600 with MVME712M", NULL, NULL},
+ {0x1E0, 0xFC, "MVME 2600/2700 with MVME761", NULL, NULL},
+ {0x1E0, 0xFD, "MVME 3600 with MVME712M", NULL, NULL},
+ {0x1E0, 0xFE, "MVME 3600 with MVME761", NULL, NULL},
+ {0x1E0, 0xFF, "MVME 1600-001 or 1600-011", NULL, NULL},
{0x000, 0x00, ""}
};
+
+
prep_t currentPrepType;
motorolaBoard currentBoard;
prep_t checkPrepBoardType(RESIDUAL *res)
@@ -114,9 +250,24 @@ motorolaBoard getMotorolaBoard()
return currentBoard;
}
+
const char* motorolaBoardToString(motorolaBoard board)
{
if (board == MOTOROLA_UNKNOWN) return "Unknown motorola board";
return (mot_boards[board].name);
}
+
+const struct _int_map *motorolaIntMap(motorolaBoard board)
+{
+ if (board == MOTOROLA_UNKNOWN) return NULL;
+ return mot_boards[board].intmap;
+}
+
+
+const void *motorolaIntSwizzle(motorolaBoard board)
+{
+ if (board == MOTOROLA_UNKNOWN) return NULL;
+ return (void *)mot_boards[board].swizzler;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 09:44:34 +0000