[TG3]: Add nvram detection for 5752

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

1 files changed, 62 insertions, 1 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index a94631af21cd..dbdd3ecafdc1 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7096,6 +7096,63 @@ static void __devinit tg3_get_nvram_info(struct tg3 *tp)
         }
 }
 
+static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
+{
+        u32 nvcfg1;
+
+        nvcfg1 = tr32(NVRAM_CFG1);
+
+        switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
+                case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
+                case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
+                        tp->nvram_jedecnum = JEDEC_ATMEL;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        break;
+                case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
+                        tp->nvram_jedecnum = JEDEC_ATMEL;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        tp->tg3_flags2 |= TG3_FLG2_FLASH;
+                        break;
+                case FLASH_5752VENDOR_ST_M45PE10:
+                case FLASH_5752VENDOR_ST_M45PE20:
+                case FLASH_5752VENDOR_ST_M45PE40:
+                        tp->nvram_jedecnum = JEDEC_ST;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        tp->tg3_flags2 |= TG3_FLG2_FLASH;
+                        break;
+        }
+
+        if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
+                switch (nvcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
+                        case FLASH_5752PAGE_SIZE_256:
+                                tp->nvram_pagesize = 256;
+                                break;
+                        case FLASH_5752PAGE_SIZE_512:
+                                tp->nvram_pagesize = 512;
+                                break;
+                        case FLASH_5752PAGE_SIZE_1K:
+                                tp->nvram_pagesize = 1024;
+                                break;
+                        case FLASH_5752PAGE_SIZE_2K:
+                                tp->nvram_pagesize = 2048;
+                                break;
+                        case FLASH_5752PAGE_SIZE_4K:
+                                tp->nvram_pagesize = 4096;
+                                break;
+                        case FLASH_5752PAGE_SIZE_264:
+                                tp->nvram_pagesize = 264;
+                                break;
+                }
+        }
+        else {
+                /* For eeprom, set pagesize to maximum eeprom size */
+                tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
+
+                nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
+                tw32(NVRAM_CFG1, nvcfg1);
+        }
+}
+
 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
 static void __devinit tg3_nvram_init(struct tg3 *tp)
 {
@@ -7128,7 +7185,11 @@ static void __devinit tg3_nvram_init(struct tg3 *tp)
                         tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
                 }
 
-                tg3_get_nvram_info(tp);
+                if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
+                        tg3_get_5752_nvram_info(tp);
+                else
+                        tg3_get_nvram_info(tp);
+
                 tg3_get_nvram_size(tp);
 
                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {