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toradex: tdx-cfg-block: add new toradex oui range

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Add new Toradex MAC OUI (8c:06:cb), to the config block. With this change
we extend the possible serial-numbers as follows:

For serial-numbers 00000000-16777215 OUI 00:14:2d is taken
For serial-numbers 16777216-33554431 OUI 8c:06:cb is taken

Lower 24-bit of the serial number are used in the NIC part of the
MAC address, the complete serial number can be calculated using the OUI.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
This commit is contained in:
Philippe Schenker 2022-06-20 16:57:45 +02:00 • committed by Tom Rini
parent a58147c2db
commit 1cf4e79f57
3 changed files with 41 additions and 8 deletions
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42
board/toradex/common/tdx-cfg-block.c
View file

@ -159,6 +159,42 @@ const char * const toradex_display_adapters[] = {
[159] = "Verdin DSI to LVDS Adapter", [159] = "Verdin DSI to LVDS Adapter",
}; };
const u32 toradex_ouis[] = {
[0] = 0x00142dUL,
[1] = 0x8c06cbUL,
};
static u32 get_serial_from_mac(struct toradex_eth_addr *eth_addr)
{
int i;
u32 oui = ntohl(eth_addr->oui) >> 8;
u32 nic = ntohl(eth_addr->nic) >> 8;
for (i = 0; i < ARRAY_SIZE(toradex_ouis); i++) {
if (toradex_ouis[i] == oui)
break;
}
return (u32)((i << 24) + nic);
}
void get_mac_from_serial(u32 tdx_serial, struct toradex_eth_addr *eth_addr)
{
u8 oui_index = tdx_serial >> 24;
u32 nic = tdx_serial & GENMASK(23, 0);
u32 oui;
if (oui_index >= ARRAY_SIZE(toradex_ouis)) {
puts("Can't find OUI for this serial#\n");
oui_index = 0;
}
oui = toradex_ouis[oui_index];
eth_addr->oui = htonl(oui << 8);
eth_addr->nic = htonl(nic << 8);
}
#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
static int tdx_cfg_block_mmc_storage(u8 *config_block, int write) static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
{ {
@ -331,8 +367,7 @@ int read_tdx_cfg_block(void)
memcpy(&tdx_eth_addr, config_block + offset, memcpy(&tdx_eth_addr, config_block + offset,
6); 6);
/* NIC part of MAC address is serial number */ tdx_serial = get_serial_from_mac(&tdx_eth_addr);
tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
break; break;
case TAG_HW: case TAG_HW:
memcpy(&tdx_hw_tag, config_block + offset, 8); memcpy(&tdx_hw_tag, config_block + offset, 8);
@ -974,8 +1009,7 @@ static int do_cfgblock_create(struct cmd_tbl *cmdtp, int flag, int argc,
} }
/* Convert serial number to MAC address (the storage format) */ /* Convert serial number to MAC address (the storage format) */
tdx_eth_addr.oui = htonl(0x00142dUL << 8); get_mac_from_serial(tdx_serial, &tdx_eth_addr);
tdx_eth_addr.nic = htonl(tdx_serial << 8);
/* Valid Tag */ /* Valid Tag */
write_tag(config_block, &offset, TAG_VALID, NULL, 0); write_tag(config_block, &offset, TAG_VALID, NULL, 0);

2
board/toradex/common/tdx-cfg-block.h
View file

@ -114,4 +114,6 @@ int read_tdx_cfg_block_carrier(void);
int try_migrate_tdx_cfg_block_carrier(void); int try_migrate_tdx_cfg_block_carrier(void);
void get_mac_from_serial(u32 tdx_serial, struct toradex_eth_addr *eth_addr);
#endif /* _TDX_CFG_BLOCK_H */ #endif /* _TDX_CFG_BLOCK_H */

5
board/toradex/common/tdx-common.c
View file

@ -20,8 +20,6 @@
#include <asm/setup.h> #include <asm/setup.h>
#include "tdx-common.h" #include "tdx-common.h"
#define TORADEX_OUI 0x00142dUL
#define SERIAL_STR_LEN 8 #define SERIAL_STR_LEN 8
#define MODULE_VER_STR_LEN 4 // V1.1 #define MODULE_VER_STR_LEN 4 // V1.1
#define MODULE_REV_STR_LEN 3 // [A-Z] or #[26-99] #define MODULE_REV_STR_LEN 3 // [A-Z] or #[26-99]
@ -104,8 +102,7 @@ int show_board_info(void)
if (read_tdx_cfg_block()) { if (read_tdx_cfg_block()) {
printf("MISSING TORADEX CONFIG BLOCK\n"); printf("MISSING TORADEX CONFIG BLOCK\n");
tdx_eth_addr.oui = htonl(TORADEX_OUI << 8); get_mac_from_serial(tdx_serial, &tdx_eth_addr);
tdx_eth_addr.nic = htonl(tdx_serial << 8);
checkboard(); checkboard();
} else { } else {
snprintf(tdx_serial_str, sizeof(tdx_serial_str), snprintf(tdx_serial_str, sizeof(tdx_serial_str),