diff options
Diffstat (limited to 'board/mpc8568mds/mpc8568mds.c')
| -rw-r--r-- | board/mpc8568mds/mpc8568mds.c | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/board/mpc8568mds/mpc8568mds.c b/board/mpc8568mds/mpc8568mds.c index 9c7960d..23caaec 100644 --- a/board/mpc8568mds/mpc8568mds.c +++ b/board/mpc8568mds/mpc8568mds.c @@ -27,6 +27,7 @@ #include <asm/processor.h> #include <asm/immap_85xx.h> #include <spd.h> +#include <i2c.h> #include "bcsr.h" @@ -50,6 +51,15 @@ int board_early_init_f (void) enable_8568mds_duart(); enable_8568mds_flash_write(); +#ifdef CFG_I2C2_OFFSET + /* Enable I2C2_SCL and I2C2_SDA */ + volatile struct par_io *port_c; + port_c = (struct par_io*)(CFG_IMMR + 0xe0140); + port_c->cpdir2 |= 0x0f000000; + port_c->cppar2 &= ~0x0f000000; + port_c->cppar2 |= 0x0a000000; +#endif + return 0; } @@ -269,20 +279,62 @@ static struct pci_config_table pci_mpc8568mds_config_table[] = { #endif static struct pci_controller hose[] = { + { #ifndef CONFIG_PCI_PNP - { config_table: pci_mpc8568mds_config_table,}, -#endif -#ifdef CONFIG_MPC85XX_PCI2 - {}, + config_table: pci_mpc8568mds_config_table, #endif + } }; #endif /* CONFIG_PCI */ +/* + * pib_init() -- Initialize the PCA9555 IO expander on the PIB board + */ +void +pib_init(void) +{ + u8 val8, orig_i2c_bus; + /* + * Assign PIB PMC2/3 to PCI bus + */ + + /*switch temporarily to I2C bus #2 */ + orig_i2c_bus = i2c_get_bus_num(); + i2c_set_bus_num(1); + + val8 = 0x00; + i2c_write(0x23, 0x6, 1, &val8, 1); + i2c_write(0x23, 0x7, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x23, 0x2, 1, &val8, 1); + i2c_write(0x23, 0x3, 1, &val8, 1); + + val8 = 0x00; + i2c_write(0x26, 0x6, 1, &val8, 1); + val8 = 0x34; + i2c_write(0x26, 0x7, 1, &val8, 1); + val8 = 0xf9; + i2c_write(0x26, 0x2, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x26, 0x3, 1, &val8, 1); + + val8 = 0x00; + i2c_write(0x27, 0x6, 1, &val8, 1); + i2c_write(0x27, 0x7, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x27, 0x2, 1, &val8, 1); + val8 = 0xef; + i2c_write(0x27, 0x3, 1, &val8, 1); + + asm("eieio"); +} + void pci_init_board(void) { #ifdef CONFIG_PCI + pib_init(); pci_mpc85xx_init(&hose); #endif } |