GE: Move from ext4 to eeprom bootcounter

index 33f7ee6e3be5..60d600c50c8b 100644
@@ -624,14 +624,14 @@ static void process_vpd(struct vpd_cache *vpd)
 		eth_env_set_enetaddr_by_index("eth", i210_index, vpd->mac2);
 }
 
-static int read_vpd(uint eeprom_bus)
+static int read_vpd()
 {
 	int res;
 	int size = 1024;
 	uint8_t *data;
 	unsigned int current_i2c_bus = i2c_get_bus_num();
 
-	res = i2c_set_bus_num(eeprom_bus);
+	res = i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
 	if (res < 0)
 		return res;
 

@@ -715,7 +715,7 @@ int board_init(void)
 	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 	setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
 
-	read_vpd(CONFIG_SYS_I2C_EEPROM_BUS);
+	read_vpd();
 
 	set_confidx(&vpd);
 

index 0010998d66cf..317d7f69d5a1 100644
@@ -329,7 +329,7 @@ static void process_vpd(struct vpd_cache *vpd)
 		eth_env_set_enetaddr("ethaddr", vpd->mac1);
 }
 
-static int read_vpd(uint eeprom_bus)
+static int read_vpd()
 {
 	struct vpd_cache vpd;
 	int res;

@@ -337,7 +337,7 @@ static int read_vpd(uint eeprom_bus)
 	u8 *data;
 	unsigned int current_i2c_bus = i2c_get_bus_num();
 
-	res = i2c_set_bus_num(eeprom_bus);
+	res = i2c_set_bus_num(VPD_EEPROM_BUS);
 	if (res < 0)
 		return res;
 

@@ -391,7 +391,7 @@ int board_late_init(void)
 {
 	int res;
 
-	read_vpd(VPD_EEPROM_BUS);
+	read_vpd();
 
 	res = clock_1GHz();
 	if (res != 0)

index 60d600c50c8b..c703aca7cab3 100644
@@ -39,15 +39,6 @@ struct vpd_cache;
 static int confidx = 3;  /* Default to b850v3. */
 static struct vpd_cache vpd;
 
-#ifndef CONFIG_SYS_I2C_EEPROM_ADDR
-# define CONFIG_SYS_I2C_EEPROM_ADDR     0x50
-# define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
-#endif
-
-#ifndef CONFIG_SYS_I2C_EEPROM_BUS
-#define CONFIG_SYS_I2C_EEPROM_BUS       4
-#endif
-
 #define NC_PAD_CTRL (PAD_CTL_PUS_100K_UP |	\
 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |	\
 	PAD_CTL_HYS)

@@ -627,11 +618,11 @@ static void process_vpd(struct vpd_cache *vpd)
 static int read_vpd()
 {
 	int res;
-	int size = 1024;
+	static const int size = CONFIG_SYS_VPD_EEPROM_SIZE;
 	uint8_t *data;
 	unsigned int current_i2c_bus = i2c_get_bus_num();
 
-	res = i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
+	res = i2c_set_bus_num(CONFIG_SYS_VPD_EEPROM_I2C_BUS);
 	if (res < 0)
 		return res;
 

@@ -639,8 +630,8 @@ static int read_vpd()
 	if (!data)
 		return -ENOMEM;
 
-	res = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
-			CONFIG_SYS_I2C_EEPROM_ADDR_LEN, data, size);
+	res = i2c_read(CONFIG_SYS_VPD_EEPROM_I2C_ADDR, 0,
+		       CONFIG_SYS_VPD_EEPROM_I2C_ADDR_LEN, data, size);
 
 	if (res == 0) {
 		memset(&vpd, 0, sizeof(vpd));

index 317d7f69d5a1..47f6e9649cbe 100644
@@ -41,13 +41,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/* Index of I2C1, SEGMENT 1 (see CONFIG_SYS_I2C_BUSES). */
-#define VPD_EEPROM_BUS 2
-
-/* Address of 24C08 EEPROM. */
-#define VPD_EEPROM_ADDR		0x50
-#define VPD_EEPROM_ADDR_LEN	1
-
 static u32 mx53_dram_size[2];
 
 phys_size_t get_effective_memsize(void)

@@ -333,11 +326,11 @@ static int read_vpd()
 {
 	struct vpd_cache vpd;
 	int res;
-	int size = 1024;
+	static const int size = CONFIG_SYS_VPD_EEPROM_SIZE;
 	u8 *data;
 	unsigned int current_i2c_bus = i2c_get_bus_num();
 
-	res = i2c_set_bus_num(VPD_EEPROM_BUS);
+	res = i2c_set_bus_num(CONFIG_SYS_VPD_EEPROM_I2C_BUS);
 	if (res < 0)
 		return res;
 

@@ -345,7 +338,8 @@ static int read_vpd()
 	if (!data)
 		return -ENOMEM;
 
-	res = i2c_read(VPD_EEPROM_ADDR, 0, VPD_EEPROM_ADDR_LEN, data, size);
+	res = i2c_read(CONFIG_SYS_VPD_EEPROM_I2C_ADDR, 0,
+		       CONFIG_SYS_VPD_EEPROM_I2C_ADDR_LEN, data, size);
 	if (res == 0) {
 		memset(&vpd, 0, sizeof(vpd));
 		vpd_reader(size, data, &vpd, vpd_callback);

98 lines not on this page · raw message

index 79d82ad451f3..a8bb611eea9e 100644
@@ -54,14 +54,15 @@ void bootcount_store(ulong a)
 	if (prev_i2c_bus < 0)
 		return;
 
-	unsigned char buf[3];
+	unsigned char buf[2];
 	int ret;
 
+	BUILD_BUG_ON(CONFIG_BOOTCOUNT_I2C_LEN < sizeof(buf));
 	buf[0] = BC_MAGIC;
 	buf[1] = (a & 0xff);
 	ret = i2c_write(CONFIG_SYS_BOOTCOUNT_I2C_ADDR,
 			CONFIG_SYS_BOOTCOUNT_ADDR,
-			CONFIG_BOOTCOUNT_ALEN, buf, 2);
+			CONFIG_BOOTCOUNT_ALEN, buf, sizeof(buf));
 	if (ret != 0)
 		puts("Error writing bootcount\n");
 

@@ -77,12 +78,13 @@ ulong bootcount_load(void)
 	if (prev_i2c_bus < 0)
 		return count;
 
-	unsigned char buf[3];
+	unsigned char buf[2];
 	int ret;
 
+	BUILD_BUG_ON(CONFIG_BOOTCOUNT_I2C_LEN < sizeof(buf));
 	ret = i2c_read(CONFIG_SYS_BOOTCOUNT_I2C_ADDR,
 		       CONFIG_SYS_BOOTCOUNT_ADDR,
-		       CONFIG_BOOTCOUNT_ALEN, buf, 2);
+		       CONFIG_BOOTCOUNT_ALEN, buf, sizeof(buf));
 	if (ret != 0) {
 		puts("Error loading bootcount\n");
 		goto out;

index c703aca7cab3..917baaea7129 100644
@@ -34,8 +34,6 @@
 #include "../../../drivers/net/e1000.h"
 DECLARE_GLOBAL_DATA_PTR;
 
-struct vpd_cache;
-
 static int confidx = 3;  /* Default to b850v3. */
 static struct vpd_cache vpd;
 

@@ -553,6 +551,7 @@ int overwrite_console(void)
 #define VPD_MAC_ADDRESS_LENGTH 6
 
 struct vpd_cache {
+	bool is_read;
 	u8 product_id;
 	u8 has;
 	unsigned char mac1[VPD_MAC_ADDRESS_LENGTH];

@@ -562,11 +561,9 @@ struct vpd_cache {
 /*
  * Extracts MAC and product information from the VPD.
  */
-static int vpd_callback(void *userdata, u8 id, u8 version, u8 type,
+static int vpd_callback(struct vpd_cache *vpd, u8 id, u8 version, u8 type,
 			size_t size, u8 const *data)
 {
-	struct vpd_cache *vpd = (struct vpd_cache *)userdata;
-
 	if (id == VPD_BLOCK_HWID && version == 1 && type != VPD_TYPE_INVALID &&
 	    size >= 1) {
 		vpd->product_id = data[0];

@@ -590,6 +587,11 @@ static void process_vpd(struct vpd_cache *vpd)
 	int fec_index = -1;
 	int i210_index = -1;
 
+	if (!vpd->is_read) {
+		printf("VPD wasn't read");
+		return;
+	}
+
 	switch (vpd->product_id) {
 	case VPD_PRODUCT_B450:
 		env_set("confidx", "1");

@@ -615,35 +617,6 @@ static void process_vpd(struct vpd_cache *vpd)
 		eth_env_set_enetaddr_by_index("eth", i210_index, vpd->mac2);
 }
 
-static int read_vpd()
-{
-	int res;
-	static const int size = CONFIG_SYS_VPD_EEPROM_SIZE;
-	uint8_t *data;
-	unsigned int current_i2c_bus = i2c_get_bus_num();
-
-	res = i2c_set_bus_num(CONFIG_SYS_VPD_EEPROM_I2C_BUS);
-	if (res < 0)
-		return res;
-
-	data = (uint8_t *)malloc(size);
-	if (!data)
-		return -ENOMEM;
-
-	res = i2c_read(CONFIG_SYS_VPD_EEPROM_I2C_ADDR, 0,
-		       CONFIG_SYS_VPD_EEPROM_I2C_ADDR_LEN, data, size);
-
-	if (res == 0) {
-		memset(&vpd, 0, sizeof(vpd));
-		vpd_reader(size, data, &vpd, vpd_callback);
-	}
-
-	free(data);
-
-	i2c_set_bus_num(current_i2c_bus);
-	return res;
-}
-
 int board_eth_init(bd_t *bis)
 {
 	setup_iomux_enet();

@@ -706,9 +679,10 @@ int board_init(void)
 	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 	setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
 
-	read_vpd();
-
-	set_confidx(&vpd);
+	if (!read_vpd(&vpd, vpd_callback)) {
+		vpd.is_read = true;
+		set_confidx(&vpd);
+	}
 
 	gpio_direction_output(SUS_S3_OUT, 1);
 	gpio_direction_output(WIFI_EN, 1);

index 7367427993b3..60f81342f9bc 100644
@@ -6,6 +6,7 @@
 
 #include "vpd_reader.h"
 
+#include <i2c.h>
 #include <linux/bch.h>
 #include <stdlib.h>
 

@@ -106,9 +107,9 @@ static const size_t HEADER_BLOCK_ECC_LEN = 4;
 
 static const u8 ECC_BLOCK_ID = 0xFF;
 
-int vpd_reader(size_t size, u8 *data, void *userdata,
-	       int (*fn)(void *userdata, u8 id, u8 version, u8 type,
-			 size_t size, u8 const *data))
+static int vpd_reader(size_t size, u8 *data, struct vpd_cache *userdata,
+		      int (*fn)(struct vpd_cache *, u8 id, u8 version, u8 type,
+				size_t size, u8 const *data))
 {
 	if (size < HEADER_BLOCK_LEN || !data || !fn)
 		return -EINVAL;

@@ -195,3 +196,33 @@ int vpd_reader(size_t size, u8 *data, void *userdata,
 			return ret;
 	}
 }
+
+int read_vpd(struct vpd_cache *cache,
+	     int (*process_block)(struct vpd_cache *, u8 id, u8 version,
+				  u8 type, size_t size, u8 const *data))
+{
+	static const size_t size = CONFIG_SYS_VPD_EEPROM_SIZE;
+
+	int res;
+	u8 *data;
+	unsigned int current_i2c_bus = i2c_get_bus_num();
+
+	res = i2c_set_bus_num(CONFIG_SYS_VPD_EEPROM_I2C_BUS);
+	if (res < 0)
+		return res;
+
+	data = malloc(size);
+	if (!data)
+		return -ENOMEM;
+
+	res = i2c_read(CONFIG_SYS_VPD_EEPROM_I2C_ADDR, 0,
+		       CONFIG_SYS_VPD_EEPROM_I2C_ADDR_LEN,
+		       data, size);
+	if (res == 0)
+		res = vpd_reader(size, data, cache, process_block);
+
+	free(data);
+
+	i2c_set_bus_num(current_i2c_bus);
+	return res;
+}

index 4abba8f5de72..f5e90dbf6629 100644
@@ -6,12 +6,18 @@
 
 #include "common.h"
 
+struct vpd_cache;
+
 /*
- * Read VPD from given data, verify content, and call callback
- * for each vital product data block.
+ * Read VPD from given data, verify content, call callback for each vital
+ * product data block.
+ *
+ * cache: structure used by process block to store VPD information
+ * process_block: callback called for each VPD data block
  *
  * Returns Non-zero on error.  Negative numbers encode errno.
  */
-int vpd_reader(size_t size, u8 *data, void *userdata,
-	       int (*fn)(void *userdata, u8 id, u8 version, u8 type,
-			 size_t size, u8 const *data));
+int read_vpd(struct vpd_cache *cache,
+	     int (*process_block)(struct vpd_cache *,
+				  u8 id, u8 version, u8 type,
+				  size_t size, u8 const *data));

64 lines not on this page · raw message

index 60f81342f9bc..7f1f8bca1baf 100644
@@ -6,6 +6,7 @@
 
 #include "vpd_reader.h"
 
+#include <linux/bug.h>
 #include <i2c.h>
 #include <linux/bch.h>
 #include <stdlib.h>

@@ -201,7 +202,26 @@ int read_vpd(struct vpd_cache *cache,
 	     int (*process_block)(struct vpd_cache *, u8 id, u8 version,
 				  u8 type, size_t size, u8 const *data))
 {
+#if defined(CONFIG_BOOTCOUNT_I2C) &&					\
+	(CONFIG_SYS_BOOTCOUNT_I2C_BUS == CONFIG_SYS_VPD_EEPROM_I2C_BUS) && \
+	((CONFIG_SYS_BOOTCOUNT_I2C_ADDR & 0xf0) == CONFIG_SYS_VPD_EEPROM_I2C_ADDR)
+	/*
+	 * bootcount is expected to reside at the end of EEPROM
+	 *
+	 * check is hard-wired to the logic of the 24C08 EEPROM 256-bytes
+	 * page-wise (4 pages) i2c_address/bootcount_address structure combined
+	 * with raw I2C access, so the I2C address and offset are combined into:
+	 *
+	 *     i2c_addr = (device_i2c_addr | page),
+	 *     offset = (offset - (page * 256)))
+	 */
+	BUILD_BUG_ON((CONFIG_SYS_BOOTCOUNT_I2C_ADDR & 0x0f) * 256 +
+		     CONFIG_SYS_BOOTCOUNT_ADDR + CONFIG_BOOTCOUNT_I2C_LEN !=
+		     CONFIG_SYS_VPD_EEPROM_SIZE);
+	static const size_t size = CONFIG_SYS_BOOTCOUNT_ADDR;
+#else
 	static const size_t size = CONFIG_SYS_VPD_EEPROM_SIZE;
+#endif
 
 	int res;
 	u8 *data;

index 307ec0101c0a..5576fd33d48d 100644
@@ -118,9 +118,9 @@
 		"setenv stdout vga; " \
 		"echo \"\n\n\n\n    \" $msg; " \
 		"setenv stdout serial; " \
-		"mw.b 0x7000A000 0xbc; " \
-		"mw.b 0x7000A001 0x00; " \
-		"ext4write ${dev} ${devnum}:5 0x7000A000 /boot/failures 2\0" \
+		"i2c dev 4; " \
+		"i2c mw.b 53 fe bc; " \
+		"i2c mw.b 53 ff 00; \0" \
 	"altbootcmd=" \
 		"run doquiet; " \
 		"setenv partnum 1; run hasfirstboot || setenv partnum 2; " \

index 338f1434f2cc..549efc10c5e9 100644
@@ -130,9 +130,9 @@
 		"setenv stdout vga; " \
 		"echo \"\n\n\n\n    \" $msg; " \
 		"setenv stdout serial; " \
-		"mw.b 0x7000A000 0xbc; " \
-		"mw.b 0x7000A001 0x00; " \
-		"ext4write ${dev} ${devnum}:5 0x7000A000 /boot/failures 2\0" \
+		"i2c dev 2; " \
+		"i2c mw.b 53 fe bc; " \
+		"i2c mw.b 53 ff 00; \0" \
 	"altbootcmd=" \
 		"run doquiet; " \
 		"setenv partnum 1; run hasfirstboot || setenv partnum 2; " \