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ARM: dts: stm32: Update eth1addr from EEPROM if eth1 present

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The STM32MP1 DHCOM has two ethernet interfaces, the on-SoM DWMAC and KS8851.
Set eth1addr for the KS8851 to a MAC address of the DWMAC incremented by 1.
The MAC of the DWMAC is set from on-SoM EEPROM already, but the MAC address
of KS8851 was left uninitialized, so fix this.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Marek Vasut 2020-07-31 01:34:50 +02:00 committed by Patrice Chotard
parent b2a2911dad
commit 9ff770b497
2 changed files with 24 additions and 2 deletions
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1
arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
View File

@ -18,6 +18,7 @@
mmc1 = &sdmmc2;
spi0 = &qspi;
usb0 = &usbotg_hs;
ethernet1 = &ksz8851;
};
config {

25
board/dhelectronics/dh_stm32mp1/board.c
View File

@ -84,11 +84,26 @@ DECLARE_GLOBAL_DATA_PTR;
int setup_mac_address(void)
{
unsigned char enetaddr[6];
bool skip_eth0 = false;
bool skip_eth1 = false;
struct udevice *dev;
int off, ret;
ret = eth_env_get_enetaddr("ethaddr", enetaddr);
if (ret) /* ethaddr is already set */
skip_eth0 = true;
off = fdt_path_offset(gd->fdt_blob, "ethernet1");
if (off < 0) {
/* ethernet1 is not present in the system */
skip_eth1 = true;
} else {
ret = eth_env_get_enetaddr("eth1addr", enetaddr);
if (ret) /* eth1addr is already set */
skip_eth1 = true;
}
if (skip_eth0 && skip_eth1)
return 0;
off = fdt_path_offset(gd->fdt_blob, "eeprom0");
@ -109,8 +124,14 @@ int setup_mac_address(void)
return ret;
}
if (is_valid_ethaddr(enetaddr))
eth_env_set_enetaddr("ethaddr", enetaddr);
if (is_valid_ethaddr(enetaddr)) {
if (!skip_eth0)
eth_env_set_enetaddr("ethaddr", enetaddr);
enetaddr[5]++;
if (!skip_eth1)
eth_env_set_enetaddr("eth1addr", enetaddr);
}
return 0;
}