mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 05:23:34 +00:00
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/*
|
|
* CPSW common - libs used across TI ethernet devices.
|
|
*
|
|
* Copyright (C) 2016, Texas Instruments, Incorporated
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <fdt_support.h>
|
|
#include <asm/io.h>
|
|
#include <cpsw.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define CTRL_MAC_REG(offset, id) ((offset) + 0x8 * (id))
|
|
|
|
static int davinci_emac_3517_get_macid(struct udevice *dev, u16 offset,
|
|
int slave, u8 *mac_addr)
|
|
{
|
|
void *fdt = (void *)gd->fdt_blob;
|
|
int node = dev_of_offset(dev);
|
|
u32 macid_lsb;
|
|
u32 macid_msb;
|
|
fdt32_t gmii = 0;
|
|
int syscon;
|
|
u32 addr;
|
|
|
|
syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
|
|
if (syscon < 0) {
|
|
error("Syscon offset not found\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
|
|
sizeof(u32), MAP_NOCACHE);
|
|
if (addr == FDT_ADDR_T_NONE) {
|
|
error("Not able to get syscon address to get mac efuse address\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
addr += CTRL_MAC_REG(offset, slave);
|
|
|
|
/* try reading mac address from efuse */
|
|
macid_lsb = readl(addr);
|
|
macid_msb = readl(addr + 4);
|
|
|
|
mac_addr[0] = (macid_msb >> 16) & 0xff;
|
|
mac_addr[1] = (macid_msb >> 8) & 0xff;
|
|
mac_addr[2] = macid_msb & 0xff;
|
|
mac_addr[3] = (macid_lsb >> 16) & 0xff;
|
|
mac_addr[4] = (macid_lsb >> 8) & 0xff;
|
|
mac_addr[5] = macid_lsb & 0xff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cpsw_am33xx_cm_get_macid(struct udevice *dev, u16 offset, int slave,
|
|
u8 *mac_addr)
|
|
{
|
|
void *fdt = (void *)gd->fdt_blob;
|
|
int node = dev_of_offset(dev);
|
|
u32 macid_lo;
|
|
u32 macid_hi;
|
|
fdt32_t gmii = 0;
|
|
int syscon;
|
|
u32 addr;
|
|
|
|
syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
|
|
if (syscon < 0) {
|
|
error("Syscon offset not found\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
|
|
sizeof(u32), MAP_NOCACHE);
|
|
if (addr == FDT_ADDR_T_NONE) {
|
|
error("Not able to get syscon address to get mac efuse address\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
addr += CTRL_MAC_REG(offset, slave);
|
|
|
|
/* try reading mac address from efuse */
|
|
macid_lo = readl(addr);
|
|
macid_hi = readl(addr + 4);
|
|
|
|
mac_addr[5] = (macid_lo >> 8) & 0xff;
|
|
mac_addr[4] = macid_lo & 0xff;
|
|
mac_addr[3] = (macid_hi >> 24) & 0xff;
|
|
mac_addr[2] = (macid_hi >> 16) & 0xff;
|
|
mac_addr[1] = (macid_hi >> 8) & 0xff;
|
|
mac_addr[0] = macid_hi & 0xff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ti_cm_get_macid(struct udevice *dev, int slave, u8 *mac_addr)
|
|
{
|
|
if (of_machine_is_compatible("ti,dm8148"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,am33xx"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_device_is_compatible(dev, "ti,am3517-emac"))
|
|
return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr);
|
|
|
|
if (of_device_is_compatible(dev, "ti,dm816-emac"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,am43"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,dra7"))
|
|
return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr);
|
|
|
|
dev_err(dev, "incompatible machine/device type for reading mac address\n");
|
|
return -ENOENT;
|
|
}
|