From 66d2cc95d14b5d750a9c58209fddb62eb139eaab Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 3 Sep 2005 15:55:50 -0700 Subject: [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 Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/platforms/83xx/mpc834x_sys.c | 35 +++++++++++++++++++++++++++++++---- 1 file changed, 31 insertions(+), 4 deletions(-) (limited to 'arch/ppc/platforms/83xx/mpc834x_sys.c') diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c index ddd04d4c1ea9..b38a851a64ec 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); -- cgit v1.2.3