*/
void meson_eth_init(phy_interface_t mode, unsigned int flags);
+/* Generate an unique MAC address based on the HW serial */
+int meson_generate_serial_ethaddr(void);
+
#endif /* __MESON_ETH_H__ */
ssize_t meson_sm_read_efuse(uintptr_t offset, void *buffer, size_t size);
+#define SM_SERIAL_SIZE 12
+
+int meson_sm_get_serial(void *buffer, size_t size);
+
#endif /* __MESON_SM_H__ */
#include <asm/arch/boot.h>
#include <linux/libfdt.h>
#include <linux/err.h>
+#include <environment.h>
#include <asm/arch/mem.h>
#include <asm/arch/sm.h>
#include <asm/armv8/mmu.h>
}
}
+int meson_generate_serial_ethaddr(void)
+{
+ u8 mac_addr[ARP_HLEN];
+ char serial[SM_SERIAL_SIZE];
+ u32 sid;
+ u16 sid16;
+
+ if (!meson_sm_get_serial(serial, SM_SERIAL_SIZE)) {
+ sid = crc32(0, (unsigned char *)serial, SM_SERIAL_SIZE);
+ sid16 = crc16_ccitt(0, (unsigned char *)serial, SM_SERIAL_SIZE);
+
+ /* Ensure the NIC specific bytes of the mac are not all 0 */
+ if ((sid & 0xffffff) == 0)
+ sid |= 0x800000;
+
+ /* Non OUI / registered MAC address */
+ mac_addr[0] = ((sid16 >> 8) & 0xfc) | 0x02;
+ mac_addr[1] = (sid16 >> 0) & 0xff;
+ mac_addr[2] = (sid >> 24) & 0xff;
+ mac_addr[3] = (sid >> 16) & 0xff;
+ mac_addr[4] = (sid >> 8) & 0xff;
+ mac_addr[5] = (sid >> 0) & 0xff;
+
+ eth_env_set_enetaddr("ethaddr", mac_addr);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+
static void meson_set_boot_source(void)
{
const char *source;
*/
#include <common.h>
+#include <asm/arch/sm.h>
#include <linux/kernel.h>
#define FN_GET_SHARE_MEM_INPUT_BASE 0x82000020
#define FN_GET_SHARE_MEM_OUTPUT_BASE 0x82000021
#define FN_EFUSE_READ 0x82000030
#define FN_EFUSE_WRITE 0x82000031
+#define FN_CHIP_ID 0x82000044
static void *shmem_input;
static void *shmem_output;
return regs.regs[0];
}
+
+#define SM_CHIP_ID_LENGTH 119
+#define SM_CHIP_ID_OFFSET 4
+#define SM_CHIP_ID_SIZE 12
+
+int meson_sm_get_serial(void *buffer, size_t size)
+{
+ struct pt_regs regs;
+
+ meson_init_shmem();
+
+ regs.regs[0] = FN_CHIP_ID;
+ regs.regs[1] = 0;
+ regs.regs[2] = 0;
+
+ smc_call(®s);
+
+ memcpy(buffer, shmem_output + SM_CHIP_ID_OFFSET,
+ min_t(size_t, size, SM_CHIP_ID_SIZE));
+
+ return 0;
+}
> git clone https://github.com/khadas/u-boot -b Vim vim-u-boot
> cd vim-u-boot
> make kvim_defconfig
- > make
+ > make CROSS_COMPILE=aarch64-none-elf-
> export FIPDIR=$PWD/fip
Go back to mainline U-Boot source tree then :
mac_addr, EFUSE_MAC_SIZE);
if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
eth_env_set_enetaddr("ethaddr", mac_addr);
+ else
+ meson_generate_serial_ethaddr();
}
if (!env_get("serial#")) {
mac_addr, EFUSE_MAC_SIZE);
if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
eth_env_set_enetaddr("ethaddr", mac_addr);
+ else
+ meson_generate_serial_ethaddr();
}
if (!env_get("serial#")) {