2 * tsi108/109 device setup code
4 * Maintained by Roy Zang < tie-fei.zang@freescale.com >
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.
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>
24 #include <asm/system.h>
25 #include <asm/atomic.h>
29 #include <mm/mmu_decl.h>
34 #define DBG(fmt...) do { printk(fmt); } while(0)
36 #define DBG(fmt...) do { } while(0)
39 static phys_addr_t tsi108_csr_base
= -1;
41 phys_addr_t
get_csrbase(void)
43 struct device_node
*tsi
;
45 if (tsi108_csr_base
!= -1)
46 return tsi108_csr_base
;
48 tsi
= of_find_node_by_type(NULL
, "tsi-bridge");
51 const void *prop
= of_get_property(tsi
, "reg", &size
);
52 tsi108_csr_base
= of_translate_address(tsi
, prop
);
55 return tsi108_csr_base
;
58 u32
get_vir_csrbase(void)
60 return (u32
) (ioremap(get_csrbase(), 0x10000));
63 EXPORT_SYMBOL(get_csrbase
);
64 EXPORT_SYMBOL(get_vir_csrbase
);
66 static int __init
tsi108_eth_of_init(void)
68 struct device_node
*np
;
70 struct platform_device
*tsi_eth_dev
;
74 for (np
= NULL
, i
= 0;
75 (np
= of_find_compatible_node(np
, "network", "tsi108-ethernet")) != NULL
;
78 struct device_node
*phy
, *mdio
;
80 const unsigned int *phy_id
;
84 memset(r
, 0, sizeof(r
));
85 memset(&tsi_eth_data
, 0, sizeof(tsi_eth_data
));
87 ret
= of_address_to_resource(np
, 0, &r
[0]);
88 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
89 __FUNCTION__
,r
[0].name
, r
[0].start
, r
[0].end
);
94 r
[1].start
= irq_of_parse_and_map(np
, 0);
95 r
[1].end
= irq_of_parse_and_map(np
, 0);
96 r
[1].flags
= IORESOURCE_IRQ
;
97 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
98 __FUNCTION__
,r
[1].name
, r
[1].start
, r
[1].end
);
101 platform_device_register_simple("tsi-ethernet", i
, &r
[0],
104 if (IS_ERR(tsi_eth_dev
)) {
105 ret
= PTR_ERR(tsi_eth_dev
);
109 mac_addr
= of_get_mac_address(np
);
111 memcpy(tsi_eth_data
.mac_addr
, mac_addr
, 6);
113 ph
= of_get_property(np
, "mdio-handle", NULL
);
114 mdio
= of_find_node_by_phandle(*ph
);
115 ret
= of_address_to_resource(mdio
, 0, &res
);
120 ph
= of_get_property(np
, "phy-handle", NULL
);
121 phy
= of_find_node_by_phandle(*ph
);
128 phy_id
= of_get_property(phy
, "reg", NULL
);
130 tsi_eth_data
.regs
= r
[0].start
;
131 tsi_eth_data
.phyregs
= res
.start
;
132 tsi_eth_data
.phy
= *phy_id
;
133 tsi_eth_data
.irq_num
= irq_of_parse_and_map(np
, 0);
135 /* Some boards with the TSI108 bridge (e.g. Holly)
136 * have a miswiring of the ethernet PHYs which
137 * requires a workaround. The special
138 * "txc-rxc-delay-disable" property enables this
139 * workaround. FIXME: Need to port the tsi108_eth
140 * driver itself to phylib and use a non-misleading
141 * name for the workaround flag - it's not actually to
142 * do with the model of PHY in use */
143 if (of_get_property(phy
, "txc-rxc-delay-disable", NULL
))
144 tsi_eth_data
.phy_type
= TSI108_PHY_BCM54XX
;
148 platform_device_add_data(tsi_eth_dev
, &tsi_eth_data
,
155 platform_device_unregister(tsi_eth_dev
);
160 arch_initcall(tsi108_eth_of_init
);