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 #ifdef CONFIG_PQ_MDS_PIB 16 17 #include "pq-mds-pib.h" 18 19 int pib_init(void) 20 { 21 u8 val8; 22 u8 orig_i2c_bus; 23 24 /* Switch temporarily to I2C bus #2 */ 25 orig_i2c_bus = i2c_get_bus_num(); 26 i2c_set_bus_num(1); 27 28 val8 = 0; 29 #if defined(CONFIG_PCI) && !defined(CONFIG_PCISLAVE) 30 /* Assign PIB PMC slot to desired PCI bus */ 31 i2c_write(0x23, 0x6, 1, &val8, 1); 32 i2c_write(0x23, 0x7, 1, &val8, 1); 33 val8 = 0xff; 34 i2c_write(0x23, 0x2, 1, &val8, 1); 35 i2c_write(0x23, 0x3, 1, &val8, 1); 36 37 val8 = 0; 38 i2c_write(0x26, 0x6, 1, &val8, 1); 39 val8 = 0x34; 40 i2c_write(0x26, 0x7, 1, &val8, 1); 41 #if defined(CONFIG_MPC832XEMDS) 42 val8 = 0xf9; /* PMC2, PMC3 slot to PCI bus */ 43 #else 44 val8 = 0xf3; /* PMC1, PMC2, PMC3 slot to PCI bus */ 45 #endif 46 i2c_write(0x26, 0x2, 1, &val8, 1); 47 val8 = 0xff; 48 i2c_write(0x26, 0x3, 1, &val8, 1); 49 50 val8 = 0; 51 i2c_write(0x27, 0x6, 1, &val8, 1); 52 i2c_write(0x27, 0x7, 1, &val8, 1); 53 val8 = 0xff; 54 i2c_write(0x27, 0x2, 1, &val8, 1); 55 val8 = 0xef; 56 i2c_write(0x27, 0x3, 1, &val8, 1); 57 58 eieio(); 59 60 #if defined(CONFIG_MPC832XEMDS) 61 printf("PCI 32bit bus on PMC2 &PMC3\n"); 62 #else 63 printf("PCI 32bit bus on PMC1 & PMC2 &PMC3\n"); 64 #endif 65 #endif 66 67 #if defined(CONFIG_PQ_MDS_PIB_ATM) 68 #if defined(CONFIG_MPC8360EMDS) 69 val8 = 0; 70 i2c_write(0x20, 0x6, 1, &val8, 1); 71 i2c_write(0x20, 0x7, 1, &val8, 1); 72 73 val8 = 0xdf; 74 i2c_write(0x20, 0x2, 1, &val8, 1); 75 val8 = 0xf7; 76 i2c_write(0x20, 0x3, 1, &val8, 1); 77 78 eieio(); 79 80 printf("QOC3 ATM card on PMC0\n"); 81 #elif defined(CONFIG_MPC832XEMDS) 82 val8 = 0; 83 i2c_write(0x26, 0x7, 1, &val8, 1); 84 val8 = 0xf7; 85 i2c_write(0x26, 0x3, 1, &val8, 1); 86 87 val8 = 0; 88 i2c_write(0x21, 0x6, 1, &val8, 1); 89 i2c_write(0x21, 0x7, 1, &val8, 1); 90 91 val8 = 0xdf; 92 i2c_write(0x21, 0x2, 1, &val8, 1); 93 val8 = 0xef; 94 i2c_write(0x21, 0x3, 1, &val8, 1); 95 96 eieio(); 97 98 printf("QOC3 ATM card on PMC1\n"); 99 #endif 100 #endif 101 /* Reset to original I2C bus */ 102 i2c_set_bus_num(orig_i2c_bus); 103 return 0; 104 } 105 #endif /* CONFIG_PQ_MDS_PIB */ 106