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authorKumar Gala <galak@freescale.com>2005-09-03 22:55:50 (GMT)
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 07:05:59 (GMT)
commit66d2cc95d14b5d750a9c58209fddb62eb139eaab (patch)
tree7397b11eeb20801423e88975ecc1a79a81cf70e4 /arch/ppc/platforms
parentcc9c540b6c4c883d7ff250c17647dedfa4184ca6 (diff)
downloadlinux-66d2cc95d14b5d750a9c58209fddb62eb139eaab.tar.xz
[PATCH] ppc32: Added PCI support MPC83xx
Adds support for the two PCI busses on MPC83xx and the MPC834x SYS/PIBS reference board. The code initializes PCI inbound/outbound windows, allocates and registers PCI memory/io space. Be aware that setup of the PCI buses on the PIBs board is expected to be done by the firmware. Signed-off-by: Tony Li <tony.li@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc/platforms')
-rw-r--r--arch/ppc/platforms/83xx/mpc834x_sys.c35
-rw-r--r--arch/ppc/platforms/83xx/mpc834x_sys.h40
2 files changed, 52 insertions, 23 deletions
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index ddd04d4..b38a851 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -62,9 +62,29 @@ extern unsigned long total_memory; /* in mm/init */
unsigned char __res[sizeof (bd_t)];
#ifdef CONFIG_PCI
-#error "PCI is not supported"
-/* NEED mpc83xx_map_irq & mpc83xx_exclude_device
- see platforms/85xx/mpc85xx_ads_common.c */
+int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC} /* idsel 0x13 */
+ };
+
+ const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+
+int
+mpc83xx_exclude_device(u_char bus, u_char devfn)
+{
+ return PCIBIOS_SUCCESSFUL;
+}
#endif /* CONFIG_PCI */
/* ************************************************************************
@@ -88,7 +108,7 @@ mpc834x_sys_setup_arch(void)
#ifdef CONFIG_PCI
/* setup PCI host bridges */
- mpc83xx_sys_setup_hose();
+ mpc83xx_setup_hose();
#endif
mpc83xx_early_serial_map();
@@ -175,10 +195,17 @@ mpc834x_sys_init_IRQ(void)
IRQ_SENSE_LEVEL, /* EXT 1 */
IRQ_SENSE_LEVEL, /* EXT 2 */
0, /* EXT 3 */
+#ifdef CONFIG_PCI
+ IRQ_SENSE_LEVEL, /* EXT 4 */
+ IRQ_SENSE_LEVEL, /* EXT 5 */
+ IRQ_SENSE_LEVEL, /* EXT 6 */
+ IRQ_SENSE_LEVEL, /* EXT 7 */
+#else
0, /* EXT 4 */
0, /* EXT 5 */
0, /* EXT 6 */
0, /* EXT 7 */
+#endif
};
ipic_init(binfo->bi_immr_base + 0x00700, 0, MPC83xx_IPIC_IRQ_OFFSET, senses, 8);
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
index a2f6e49..1584cd7 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -26,7 +26,7 @@
#define VIRT_IMMRBAR ((uint)0xfe000000)
#define BCSR_PHYS_ADDR ((uint)0xf8000000)
-#define BCSR_SIZE ((uint)(32 * 1024))
+#define BCSR_SIZE ((uint)(128 * 1024))
#define BCSR_MISC_REG2_OFF 0x07
#define BCSR_MISC_REG2_PORESET 0x01
@@ -34,23 +34,25 @@
#define BCSR_MISC_REG3_OFF 0x08
#define BCSR_MISC_REG3_CNFLOCK 0x80
-#ifdef CONFIG_PCI
-/* PCI interrupt controller */
-#define PIRQA MPC83xx_IRQ_IRQ4
-#define PIRQB MPC83xx_IRQ_IRQ5
-#define PIRQC MPC83xx_IRQ_IRQ6
-#define PIRQD MPC83xx_IRQ_IRQ7
-
-#define MPC834x_SYS_PCI1_LOWER_IO 0x00000000
-#define MPC834x_SYS_PCI1_UPPER_IO 0x00ffffff
-
-#define MPC834x_SYS_PCI1_LOWER_MEM 0x80000000
-#define MPC834x_SYS_PCI1_UPPER_MEM 0x9fffffff
-
-#define MPC834x_SYS_PCI1_IO_BASE 0xe2000000
-#define MPC834x_SYS_PCI1_MEM_OFFSET 0x00000000
-
-#define MPC834x_SYS_PCI1_IO_SIZE 0x01000000
-#endif /* CONFIG_PCI */
+#define PIRQA MPC83xx_IRQ_EXT4
+#define PIRQB MPC83xx_IRQ_EXT5
+#define PIRQC MPC83xx_IRQ_EXT6
+#define PIRQD MPC83xx_IRQ_EXT7
+
+#define MPC83xx_PCI1_LOWER_IO 0x00000000
+#define MPC83xx_PCI1_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI1_LOWER_MEM 0x80000000
+#define MPC83xx_PCI1_UPPER_MEM 0x9fffffff
+#define MPC83xx_PCI1_IO_BASE 0xe2000000
+#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI1_IO_SIZE 0x01000000
+
+#define MPC83xx_PCI2_LOWER_IO 0x00000000
+#define MPC83xx_PCI2_UPPER_IO 0x00ffffff
+#define MPC83xx_PCI2_LOWER_MEM 0xa0000000
+#define MPC83xx_PCI2_UPPER_MEM 0xbfffffff
+#define MPC83xx_PCI2_IO_BASE 0xe3000000
+#define MPC83xx_PCI2_MEM_OFFSET 0x00000000
+#define MPC83xx_PCI2_IO_SIZE 0x01000000
#endif /* __MACH_MPC83XX_SYS_H__ */