[RFC 05/10] eeprom: starfive: Update eeprom data format version to 3

[Hal Feng <hal.feng@starfivetech.com>]

Add eeprom data format v3 support.
Add wifi_bt field in ATOM4 and add "mac wifi_bt <?>" command to modify it.
Set or show eth0/1 MAC address only if the board has eth0/1.

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
---
 .../visionfive2/visionfive2-i2c-eeprom.c      | 91 ++++++++++++++++---
 1 file changed, 78 insertions(+), 13 deletions(-)

diff --git a/board/starfive/visionfive2/visionfive2-i2c-eeprom.c b/board/starfive/visionfive2/visionfive2-i2c-eeprom.c
index 43b8af4fc59..7352252c475 100644
--- a/board/starfive/visionfive2/visionfive2-i2c-eeprom.c
+++ b/board/starfive/visionfive2/visionfive2-i2c-eeprom.c
@@ -11,7 +11,7 @@
 #include <u-boot/crc.h>
 #include <linux/delay.h>
 
-#define FORMAT_VERSION		0x2
+#define FORMAT_VERSION		0x3
 #define PCB_VERSION		0xB1
 #define BOM_VERSION		'A'
 /*
@@ -105,7 +105,8 @@ struct eeprom_atom4_data {
 	u8 bom_revision;		/* BOM version */
 	u8 mac0_addr[MAC_ADDR_BYTES];	/* Ethernet0 MAC */
 	u8 mac1_addr[MAC_ADDR_BYTES];	/* Ethernet1 MAC */
-	u8 reserved[2];
+	u8 wifi_bt;			/* WIFI/BT support flag */
+	u8 reserved;
 };
 
 struct starfive_eeprom_atom4 {
@@ -128,6 +129,35 @@ static union {
 /* Set to 1 if we've read EEPROM into memory */
 static int has_been_read __section(".data");
 
+static const char * const board_no_eth0_list[] = {
+	"FML13V01",
+};
+
+static const char * const board_no_eth1_list[] = {
+	"FML13V01",
+	"MARS",
+	"VF7110SL",
+};
+
+static bool board_have_eth(u8 eth)
+{
+	int i;
+
+	if (eth == 0) {
+		for (i = 0 ; i < ARRAY_SIZE(board_no_eth0_list); i++)
+			if (!strncmp(pbuf.eeprom.atom1.data.pstr, board_no_eth0_list[i],
+				     strlen(board_no_eth0_list[i])))
+				return false;
+	} else {
+		for (i = 0 ; i < ARRAY_SIZE(board_no_eth1_list); i++)
+			if (!strncmp(pbuf.eeprom.atom1.data.pstr, board_no_eth1_list[i],
+				     strlen(board_no_eth1_list[i])))
+				return false;
+	}
+
+	return true;
+}
+
 static inline int is_match_magic(void)
 {
 	return strncmp(pbuf.eeprom.header.signature, STARFIVE_EEPROM_HATS_SIG,
@@ -176,17 +206,22 @@ static void show_eeprom(void)
 	printf("Vendor : %s\n", pbuf.eeprom.atom1.data.vstr);
 	printf("Product full SN: %s\n", pbuf.eeprom.atom1.data.pstr);
 	printf("data version: 0x%x\n", pbuf.eeprom.atom4.data.version);
-	if (pbuf.eeprom.atom4.data.version == 2) {
+	if (pbuf.eeprom.atom4.data.version >= 2 && pbuf.eeprom.atom4.data.version <= 3) {
 		printf("PCB revision: 0x%x\n", pbuf.eeprom.atom4.data.pcb_revision);
 		printf("BOM revision: %c\n", pbuf.eeprom.atom4.data.bom_revision);
-		printf("Ethernet MAC0 address: %02x:%02x:%02x:%02x:%02x:%02x\n",
-		       pbuf.eeprom.atom4.data.mac0_addr[0], pbuf.eeprom.atom4.data.mac0_addr[1],
-		       pbuf.eeprom.atom4.data.mac0_addr[2], pbuf.eeprom.atom4.data.mac0_addr[3],
-		       pbuf.eeprom.atom4.data.mac0_addr[4], pbuf.eeprom.atom4.data.mac0_addr[5]);
-		printf("Ethernet MAC1 address: %02x:%02x:%02x:%02x:%02x:%02x\n",
-		       pbuf.eeprom.atom4.data.mac1_addr[0], pbuf.eeprom.atom4.data.mac1_addr[1],
-		       pbuf.eeprom.atom4.data.mac1_addr[2], pbuf.eeprom.atom4.data.mac1_addr[3],
-		       pbuf.eeprom.atom4.data.mac1_addr[4], pbuf.eeprom.atom4.data.mac1_addr[5]);
+		if (board_have_eth(0))
+			printf("Ethernet MAC0 address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+			pbuf.eeprom.atom4.data.mac0_addr[0], pbuf.eeprom.atom4.data.mac0_addr[1],
+			pbuf.eeprom.atom4.data.mac0_addr[2], pbuf.eeprom.atom4.data.mac0_addr[3],
+			pbuf.eeprom.atom4.data.mac0_addr[4], pbuf.eeprom.atom4.data.mac0_addr[5]);
+
+		if (board_have_eth(1))
+			printf("Ethernet MAC1 address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+			pbuf.eeprom.atom4.data.mac1_addr[0], pbuf.eeprom.atom4.data.mac1_addr[1],
+			pbuf.eeprom.atom4.data.mac1_addr[2], pbuf.eeprom.atom4.data.mac1_addr[3],
+			pbuf.eeprom.atom4.data.mac1_addr[4], pbuf.eeprom.atom4.data.mac1_addr[5]);
+		if (pbuf.eeprom.atom4.data.version >= 3)
+			printf("WIFI/BT support: %x\n", pbuf.eeprom.atom4.data.wifi_bt);
 	} else {
 		printf("Custom data v%d is not Supported\n", pbuf.eeprom.atom4.data.version);
 		dump_raw_eeprom();
@@ -260,6 +295,7 @@ static void init_local_copy(void)
 	pbuf.eeprom.atom4.data.bom_revision = BOM_VERSION;
 	set_mac_address(STARFIVE_DEFAULT_MAC0, 0);
 	set_mac_address(STARFIVE_DEFAULT_MAC1, 1);
+	pbuf.eeprom.atom4.data.wifi_bt = 0;
 }
 
 /**
@@ -385,6 +421,28 @@ static void set_bom_revision(char *string)
 	update_crc();
 }
 
+/**
+ * set_wifi_bt() - stores a StarFive WIFI/BT support flag into the local EEPROM copy
+ *
+ * Takes a pointer to a string representing the numeric WIFI/BT support flag in
+ * decimal ("0" or "1"), stores it in the wifi_bt field of the
+ * EEPROM local copy, and updates the CRC of the local copy.
+ */
+static void set_wifi_bt(char *string)
+{
+	u8 wifi_bt;
+
+	wifi_bt = simple_strtoul(string, &string, 16);
+	if (wifi_bt > 1) {
+		printf("WIFI/BT support flag must not be greater than 1");
+		return;
+	}
+
+	pbuf.eeprom.atom4.data.wifi_bt = wifi_bt;
+
+	update_crc();
+}
+
 /**
  * set_product_id() - stores a StarFive product ID into the local EEPROM copy
  *
@@ -478,6 +536,9 @@ int do_mac(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	} else if (!strcmp(cmd, "bom_revision")) {
 		set_bom_revision(argv[2]);
 		return 0;
+	} else if (!strcmp(cmd, "wifi_bt")) {
+		set_wifi_bt(argv[2]);
+		return 0;
 	} else if (!strcmp(cmd, "product_id")) {
 		set_product_id(argv[2]);
 		return 0;
@@ -513,8 +574,10 @@ int mac_read_from_eeprom(void)
 	}
 
 	// 1, setup ethaddr env
-	eth_env_set_enetaddr("ethaddr", pbuf.eeprom.atom4.data.mac0_addr);
-	eth_env_set_enetaddr("eth1addr", pbuf.eeprom.atom4.data.mac1_addr);
+	if (board_have_eth(0))
+		eth_env_set_enetaddr("ethaddr", pbuf.eeprom.atom4.data.mac0_addr);
+	if (board_have_eth(1))
+		eth_env_set_enetaddr("eth1addr", pbuf.eeprom.atom4.data.mac1_addr);
 
 	/**
 	 * 2, setup serial# env, reference to hifive-platform-i2c-eeprom.c,
@@ -585,6 +648,8 @@ U_BOOT_LONGHELP(mac,
 	"    - stores a StarFive PCB revision into the local EEPROM copy\n"
 	"mac bom_revision <A>\n"
 	"    - stores a StarFive BOM revision into the local EEPROM copy\n"
+	"mac wifi_bt <?>\n"
+	"    - stores a StarFive WIFI/BT support flag into the local EEPROM copy\n"
 	"mac product_id <VF7110A1-2228-D008E000-xxxxxxxx>\n"
 	"    - stores a StarFive product ID into the local EEPROM copy\n"
 	"mac vendor <Vendor Name>\n"
-- 
2.43.2