160 lines
3.8 KiB
C
160 lines
3.8 KiB
C
/*
|
|
* tsi108/109 device setup code
|
|
*
|
|
* Maintained by Roy Zang < tie-fei.zang@freescale.com >
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#include <linux/stddef.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/major.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/module.h>
|
|
#include <linux/device.h>
|
|
#include <linux/platform_device.h>
|
|
#include <asm/tsi108.h>
|
|
|
|
#include <asm/system.h>
|
|
#include <asm/atomic.h>
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/prom.h>
|
|
#include <mm/mmu_decl.h>
|
|
|
|
#undef DEBUG
|
|
|
|
#ifdef DEBUG
|
|
#define DBG(fmt...) do { printk(fmt); } while(0)
|
|
#else
|
|
#define DBG(fmt...) do { } while(0)
|
|
#endif
|
|
|
|
static phys_addr_t tsi108_csr_base = -1;
|
|
|
|
phys_addr_t get_csrbase(void)
|
|
{
|
|
struct device_node *tsi;
|
|
|
|
if (tsi108_csr_base != -1)
|
|
return tsi108_csr_base;
|
|
|
|
tsi = of_find_node_by_type(NULL, "tsi-bridge");
|
|
if (tsi) {
|
|
unsigned int size;
|
|
const void *prop = of_get_property(tsi, "reg", &size);
|
|
tsi108_csr_base = of_translate_address(tsi, prop);
|
|
of_node_put(tsi);
|
|
};
|
|
return tsi108_csr_base;
|
|
}
|
|
|
|
u32 get_vir_csrbase(void)
|
|
{
|
|
return (u32) (ioremap(get_csrbase(), 0x10000));
|
|
}
|
|
|
|
EXPORT_SYMBOL(get_csrbase);
|
|
EXPORT_SYMBOL(get_vir_csrbase);
|
|
|
|
static int __init tsi108_eth_of_init(void)
|
|
{
|
|
struct device_node *np;
|
|
unsigned int i = 0;
|
|
struct platform_device *tsi_eth_dev;
|
|
struct resource res;
|
|
int ret;
|
|
|
|
for_each_compatible_node(np, "network", "tsi108-ethernet") {
|
|
struct resource r[2];
|
|
struct device_node *phy, *mdio;
|
|
hw_info tsi_eth_data;
|
|
const unsigned int *phy_id;
|
|
const void *mac_addr;
|
|
const phandle *ph;
|
|
|
|
memset(r, 0, sizeof(r));
|
|
memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
|
|
|
|
ret = of_address_to_resource(np, 0, &r[0]);
|
|
DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
|
|
__func__,r[0].name, r[0].start, r[0].end);
|
|
if (ret)
|
|
goto err;
|
|
|
|
r[1].name = "tx";
|
|
r[1].start = irq_of_parse_and_map(np, 0);
|
|
r[1].end = irq_of_parse_and_map(np, 0);
|
|
r[1].flags = IORESOURCE_IRQ;
|
|
DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
|
|
__func__,r[1].name, r[1].start, r[1].end);
|
|
|
|
tsi_eth_dev =
|
|
platform_device_register_simple("tsi-ethernet", i++, &r[0],
|
|
1);
|
|
|
|
if (IS_ERR(tsi_eth_dev)) {
|
|
ret = PTR_ERR(tsi_eth_dev);
|
|
goto err;
|
|
}
|
|
|
|
mac_addr = of_get_mac_address(np);
|
|
if (mac_addr)
|
|
memcpy(tsi_eth_data.mac_addr, mac_addr, 6);
|
|
|
|
ph = of_get_property(np, "mdio-handle", NULL);
|
|
mdio = of_find_node_by_phandle(*ph);
|
|
ret = of_address_to_resource(mdio, 0, &res);
|
|
of_node_put(mdio);
|
|
if (ret)
|
|
goto unreg;
|
|
|
|
ph = of_get_property(np, "phy-handle", NULL);
|
|
phy = of_find_node_by_phandle(*ph);
|
|
|
|
if (phy == NULL) {
|
|
ret = -ENODEV;
|
|
goto unreg;
|
|
}
|
|
|
|
phy_id = of_get_property(phy, "reg", NULL);
|
|
|
|
tsi_eth_data.regs = r[0].start;
|
|
tsi_eth_data.phyregs = res.start;
|
|
tsi_eth_data.phy = *phy_id;
|
|
tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
|
|
|
|
/* Some boards with the TSI108 bridge (e.g. Holly)
|
|
* have a miswiring of the ethernet PHYs which
|
|
* requires a workaround. The special
|
|
* "txc-rxc-delay-disable" property enables this
|
|
* workaround. FIXME: Need to port the tsi108_eth
|
|
* driver itself to phylib and use a non-misleading
|
|
* name for the workaround flag - it's not actually to
|
|
* do with the model of PHY in use */
|
|
if (of_get_property(phy, "txc-rxc-delay-disable", NULL))
|
|
tsi_eth_data.phy_type = TSI108_PHY_BCM54XX;
|
|
of_node_put(phy);
|
|
|
|
ret =
|
|
platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
|
|
sizeof(hw_info));
|
|
if (ret)
|
|
goto unreg;
|
|
}
|
|
return 0;
|
|
unreg:
|
|
platform_device_unregister(tsi_eth_dev);
|
|
err:
|
|
of_node_put(np);
|
|
return ret;
|
|
}
|
|
|
|
arch_initcall(tsi108_eth_of_init);
|