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stm32h7:ethernet Use UUID for MAC

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This commit is contained in:
David Sidrane
2020-05-22 03:06:38 -07:00
committed by David Sidrane
parent 154a87993f
commit 31bb58548d
1 changed files with 17 additions and 0 deletions
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arch/arm/src/stm32h7/stm32_ethernet.c
+17
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@@ -55,6 +55,7 @@
#include "stm32_gpio.h"
#include "stm32_rcc.h"
#include "stm32_ethernet.h"
#include "stm32_uid.h"
#include <arch/board/board.h>
@@ -4356,6 +4357,8 @@ static inline int stm32_ethinitialize(int intf)
#endif
{
struct stm32_ethmac_s *priv;
uint8_t uid[12];
uint64_t crc;
ninfo("intf: %d\n", intf);
@@ -4386,6 +4389,20 @@ static inline int stm32_ethinitialize(int intf)
priv->txpoll = wd_create(); /* Create periodic poll timer */
priv->txtimeout = wd_create(); /* Create TX timeout timer */
stm32_get_uniqueid(uid);
crc = crc64(uid, 12);
/* Specify as localy administrated address */
priv->dev.d_mac.ether.ether_addr_octet[0] = (crc >> 0) | 0x02;
priv->dev.d_mac.ether.ether_addr_octet[0] &= ~0x1;
priv->dev.d_mac.ether.ether_addr_octet[1] = crc >> 8;
priv->dev.d_mac.ether.ether_addr_octet[2] = crc >> 16;
priv->dev.d_mac.ether.ether_addr_octet[3] = crc >> 24;
priv->dev.d_mac.ether.ether_addr_octet[4] = crc >> 32;
priv->dev.d_mac.ether.ether_addr_octet[5] = crc >> 40;
/* Configure GPIO pins to support Ethernet */
stm32_ethgpioconfig(priv);