1 /* 2 * tsi108/109 device setup code 3 * 4 * Maintained by Roy Zang < tie-fei.zang@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 as published by the 8 * Free Software Foundation; either version 2 of the License, or (at your 9 * option) any later version. 10 */ 11 12 #include <linux/stddef.h> 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/errno.h> 16 #include <linux/major.h> 17 #include <linux/delay.h> 18 #include <linux/irq.h> 19 #include <linux/module.h> 20 #include <linux/device.h> 21 #include <linux/platform_device.h> 22 #include <asm/tsi108.h> 23 24 #include <asm/system.h> 25 #include <asm/atomic.h> 26 #include <asm/io.h> 27 #include <asm/irq.h> 28 #include <asm/prom.h> 29 #include <mm/mmu_decl.h> 30 31 #undef DEBUG 32 33 #ifdef DEBUG 34 #define DBG(fmt...) do { printk(fmt); } while(0) 35 #else 36 #define DBG(fmt...) do { } while(0) 37 #endif 38 39 static phys_addr_t tsi108_csr_base = -1; 40 41 phys_addr_t get_csrbase(void) 42 { 43 struct device_node *tsi; 44 45 if (tsi108_csr_base != -1) 46 return tsi108_csr_base; 47 48 tsi = of_find_node_by_type(NULL, "tsi-bridge"); 49 if (tsi) { 50 unsigned int size; 51 const void *prop = of_get_property(tsi, "reg", &size); 52 tsi108_csr_base = of_translate_address(tsi, prop); 53 of_node_put(tsi); 54 }; 55 return tsi108_csr_base; 56 } 57 58 u32 get_vir_csrbase(void) 59 { 60 return (u32) (ioremap(get_csrbase(), 0x10000)); 61 } 62 63 EXPORT_SYMBOL(get_csrbase); 64 EXPORT_SYMBOL(get_vir_csrbase); 65 66 static int __init tsi108_eth_of_init(void) 67 { 68 struct device_node *np; 69 unsigned int i; 70 struct platform_device *tsi_eth_dev; 71 struct resource res; 72 int ret; 73 74 for (np = NULL, i = 0; 75 (np = of_find_compatible_node(np, "network", "tsi-ethernet")) != NULL; 76 i++) { 77 struct resource r[2]; 78 struct device_node *phy; 79 hw_info tsi_eth_data; 80 const unsigned int *id; 81 const unsigned int *phy_id; 82 const void *mac_addr; 83 const phandle *ph; 84 85 memset(r, 0, sizeof(r)); 86 memset(&tsi_eth_data, 0, sizeof(tsi_eth_data)); 87 88 ret = of_address_to_resource(np, 0, &r[0]); 89 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n", 90 __FUNCTION__,r[0].name, r[0].start, r[0].end); 91 if (ret) 92 goto err; 93 94 r[1].name = "tx"; 95 r[1].start = irq_of_parse_and_map(np, 0); 96 r[1].end = irq_of_parse_and_map(np, 0); 97 r[1].flags = IORESOURCE_IRQ; 98 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n", 99 __FUNCTION__,r[1].name, r[1].start, r[1].end); 100 101 tsi_eth_dev = 102 platform_device_register_simple("tsi-ethernet", i, &r[0], 103 1); 104 105 if (IS_ERR(tsi_eth_dev)) { 106 ret = PTR_ERR(tsi_eth_dev); 107 goto err; 108 } 109 110 mac_addr = of_get_mac_address(np); 111 if (mac_addr) 112 memcpy(tsi_eth_data.mac_addr, mac_addr, 6); 113 114 ph = of_get_property(np, "phy-handle", NULL); 115 phy = of_find_node_by_phandle(*ph); 116 117 if (phy == NULL) { 118 ret = -ENODEV; 119 goto unreg; 120 } 121 122 id = of_get_property(phy, "reg", NULL); 123 phy_id = of_get_property(phy, "phy-id", NULL); 124 ret = of_address_to_resource(phy, 0, &res); 125 if (ret) { 126 of_node_put(phy); 127 goto unreg; 128 } 129 tsi_eth_data.regs = r[0].start; 130 tsi_eth_data.phyregs = res.start; 131 tsi_eth_data.phy = *phy_id; 132 tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0); 133 if (of_device_is_compatible(phy, "bcm54xx")) 134 tsi_eth_data.phy_type = TSI108_PHY_BCM54XX; 135 of_node_put(phy); 136 ret = 137 platform_device_add_data(tsi_eth_dev, &tsi_eth_data, 138 sizeof(hw_info)); 139 if (ret) 140 goto unreg; 141 } 142 return 0; 143 unreg: 144 platform_device_unregister(tsi_eth_dev); 145 err: 146 return ret; 147 } 148 149 arch_initcall(tsi108_eth_of_init); 150