1 /* 2 * Copyright (C) 2007 Freescale Semiconductor, Inc. 3 * 4 * Tony Li <tony.li@freescale.com> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation; 9 */ 10 11 #include <common.h> 12 #include <i2c.h> 13 #include <asm/io.h> 14 15 #include "pq-mds-pib.h" 16 17 int pib_init(void) 18 { 19 u8 val8; 20 u8 orig_i2c_bus; 21 22 /* Switch temporarily to I2C bus #2 */ 23 orig_i2c_bus = i2c_get_bus_num(); 24 i2c_set_bus_num(1); 25 26 val8 = 0; 27 #if defined(CONFIG_PCI) && !defined(CONFIG_PCISLAVE) 28 /* Assign PIB PMC slot to desired PCI bus */ 29 i2c_write(0x23, 0x6, 1, &val8, 1); 30 i2c_write(0x23, 0x7, 1, &val8, 1); 31 val8 = 0xff; 32 i2c_write(0x23, 0x2, 1, &val8, 1); 33 i2c_write(0x23, 0x3, 1, &val8, 1); 34 35 val8 = 0; 36 i2c_write(0x26, 0x6, 1, &val8, 1); 37 val8 = 0x34; 38 i2c_write(0x26, 0x7, 1, &val8, 1); 39 #if defined(CONFIG_MPC832XEMDS) 40 val8 = 0xf9; /* PMC2, PMC3 slot to PCI bus */ 41 #else 42 val8 = 0xf3; /* PMC1, PMC2, PMC3 slot to PCI bus */ 43 #endif 44 i2c_write(0x26, 0x2, 1, &val8, 1); 45 val8 = 0xff; 46 i2c_write(0x26, 0x3, 1, &val8, 1); 47 48 val8 = 0; 49 i2c_write(0x27, 0x6, 1, &val8, 1); 50 i2c_write(0x27, 0x7, 1, &val8, 1); 51 val8 = 0xff; 52 i2c_write(0x27, 0x2, 1, &val8, 1); 53 val8 = 0xef; 54 i2c_write(0x27, 0x3, 1, &val8, 1); 55 56 eieio(); 57 58 #if defined(CONFIG_MPC832XEMDS) 59 printf("PCI 32bit bus on PMC2 &PMC3\n"); 60 #else 61 printf("PCI 32bit bus on PMC1 & PMC2 &PMC3\n"); 62 #endif 63 #endif 64 65 #if defined(CONFIG_PQ_MDS_PIB_ATM) 66 #if defined(CONFIG_TARGET_MPC8569MDS) 67 val8 = 0; 68 i2c_write(0x20, 0x6, 1, &val8, 1); 69 i2c_write(0x20, 0x7, 1, &val8, 1); 70 71 val8 = 0xdf; 72 i2c_write(0x20, 0x2, 1, &val8, 1); 73 val8 = 0xf7; 74 i2c_write(0x20, 0x3, 1, &val8, 1); 75 76 eieio(); 77 78 printf("QOC3 ATM card on PMC0\n"); 79 #elif defined(CONFIG_MPC832XEMDS) 80 val8 = 0; 81 i2c_write(0x26, 0x7, 1, &val8, 1); 82 val8 = 0xf7; 83 i2c_write(0x26, 0x3, 1, &val8, 1); 84 85 val8 = 0; 86 i2c_write(0x21, 0x6, 1, &val8, 1); 87 i2c_write(0x21, 0x7, 1, &val8, 1); 88 89 val8 = 0xdf; 90 i2c_write(0x21, 0x2, 1, &val8, 1); 91 val8 = 0xef; 92 i2c_write(0x21, 0x3, 1, &val8, 1); 93 94 eieio(); 95 96 printf("QOC3 ATM card on PMC1\n"); 97 #endif 98 #endif 99 /* Reset to original I2C bus */ 100 i2c_set_bus_num(orig_i2c_bus); 101 return 0; 102 } 103