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net: gem: Allow to set the MAC from an EEPROM

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Provide board specific option how to read MAC address from ROM.
Do it in generic way to be reusable by differnet boards.
If this is not enough board specific functions can be created.

Signed-off-by: Joe Hershberger <joe.hershberger@gmail.com> # driver part
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Joe Hershberger 2016-01-26 11:57:03 -06:00 committed by Michal Simek
parent b7b3efe75a
commit a509a1d402
3 changed files with 33 additions and 0 deletions
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2
arch/arm/mach-zynq/include/mach/sys_proto.h
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@ -19,6 +19,8 @@ extern int zynq_slcr_get_mio_pin_status(const char *periph);
extern void zynq_ddrc_init(void);
extern unsigned int zynq_get_silicon_version(void);
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr);
/* Driver extern functions */
extern void ps7_init(void);

13
board/xilinx/zynq/board.c
View File

@ -98,6 +98,19 @@ int checkboard(void)
}
#endif
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
{
#if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \
defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR,
CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET,
ethaddr, 6))
printf("I2C EEPROM MAC address read failed\n");
#endif
return 0;
}
int dram_init(void)
{
int node;

18
drivers/net/zynq_gem.c
View File

@ -571,6 +571,23 @@ static void zynq_gem_halt(struct udevice *dev)
ZYNQ_GEM_NWCTRL_TXEN_MASK, 0);
}
__weak int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
{
return -ENOSYS;
}
static int zynq_gem_read_rom_mac(struct udevice *dev)
{
int retval;
struct eth_pdata *pdata = dev_get_platdata(dev);
retval = zynq_board_read_rom_ethaddr(pdata->enetaddr);
if (retval == -ENOSYS)
retval = 0;
return retval;
}
static int zynq_gem_miiphy_read(struct mii_dev *bus, int addr,
int devad, int reg)
{
@ -644,6 +661,7 @@ static const struct eth_ops zynq_gem_ops = {
.free_pkt = zynq_gem_free_pkt,
.stop = zynq_gem_halt,
.write_hwaddr = zynq_gem_setup_mac,
.read_rom_hwaddr = zynq_gem_read_rom_mac,
};
static int zynq_gem_ofdata_to_platdata(struct udevice *dev)