board: ge: bx50v3: set eth0 MAC address
Define i2c mux configuration. Add new vpd_reader which is used to read
vital product data. Read VPD from EEPROM and set eth0 MAC address.
Signed-off-by: Ian Ray <ian.ray@ge.com>
Signed-off-by: Jose Alarcon <jose.alarcon@ge.com>
diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c
index b25c634..c7df4ce 100644
--- a/board/ge/bx50v3/bx50v3.c
+++ b/board/ge/bx50v3/bx50v3.c
@@ -26,8 +26,19 @@
#include <asm/arch/sys_proto.h>
#include <i2c.h>
#include <pwm.h>
+#include <stdlib.h>
+#include "vpd_reader.h"
DECLARE_GLOBAL_DATA_PTR;
+#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 2
+#endif
+
#define NC_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS)
@@ -528,6 +539,102 @@
return 1;
}
+#define VPD_TYPE_INVALID 0x00
+#define VPD_BLOCK_NETWORK 0x20
+#define VPD_BLOCK_HWID 0x44
+#define VPD_PRODUCT_B850 1
+#define VPD_PRODUCT_B650 2
+#define VPD_PRODUCT_B450 3
+
+struct vpd_cache {
+ uint8_t product_id;
+ uint8_t macbits;
+ unsigned char mac1[6];
+};
+
+/*
+ * Extracts MAC and product information from the VPD.
+ */
+static int vpd_callback(
+ void *userdata,
+ uint8_t id,
+ uint8_t version,
+ uint8_t type,
+ size_t size,
+ uint8_t 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];
+
+ } else if ( id == VPD_BLOCK_NETWORK
+ && version == 1
+ && type != VPD_TYPE_INVALID
+ && size >= 6) {
+ vpd->macbits |= 1;
+ memcpy(vpd->mac1, data, 6);
+ }
+
+ return 0;
+}
+
+static void set_eth0_mac_address(unsigned char * mac)
+{
+ uint32_t *ENET_TCR = (uint32_t*)0x21880c4;
+ uint32_t *ENET_PALR = (uint32_t*)0x21880e4;
+ uint32_t *ENET_PAUR = (uint32_t*)0x21880e8;
+
+ *ENET_TCR |= 0x100; /* ADDINS */
+ *ENET_PALR |= (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3];
+ *ENET_PAUR |= (mac[4] << 24) | (mac[5] << 16);
+}
+
+static void process_vpd(struct vpd_cache *vpd)
+{
+ if ( vpd->product_id == VPD_PRODUCT_B850
+ || vpd->product_id == VPD_PRODUCT_B650
+ || vpd->product_id == VPD_PRODUCT_B450) {
+ if (vpd->macbits & 1) {
+ set_eth0_mac_address(vpd->mac1);
+ }
+ }
+}
+
+static int read_vpd(uint eeprom_bus)
+{
+ struct vpd_cache 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);
+ if (res < 0)
+ return res;
+
+ data = (uint8_t *)malloc(size);
+ if (!data)
+ return -ENOMEM;
+
+ res = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
+ CONFIG_SYS_I2C_EEPROM_ADDR_LEN, data, size);
+
+ if (res == 0) {
+ memset(&vpd, 0, sizeof(vpd));
+ vpd_reader(size, data, &vpd, vpd_callback);
+ process_vpd(&vpd);
+ }
+
+ free(data);
+
+ i2c_set_bus_num(current_i2c_bus);
+ return res;
+}
+
int board_eth_init(bd_t *bis)
{
setup_iomux_enet();
@@ -586,6 +693,8 @@
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);
+
return 0;
}