tg3: Fix NVRAM size detection for the STM45PE20 pinstrap on 5762 devices

The STM45PE20 pinstrap on 5762 devices supports multiple sizes. So treat
it just like the ST45_USPT and the size will be read from 0xf0 via
tg3_get_nvram_size().

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index d044adf2718b..a27310dfb03e 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -13986,6 +13986,12 @@ static void tg3_get_5720_nvram_info(struct tg3 *tp)
                 case FLASH_5762_EEPROM_LD:
                         nvmpinstrp = FLASH_5720_EEPROM_LD;
                         break;
+                case FLASH_5720VENDOR_M_ST_M45PE20:
+                        /* This pinstrap supports multiple sizes, so force it
+                         * to read the actual size from location 0xf0.
+                         */
+                        nvmpinstrp = FLASH_5720VENDOR_ST_45USPT;
+                        break;
                 }
         }