net: ethernet: mediatek: get the chip id by ETHDMASYS registers
The driver gets the chip id by ETHSYS_CHIPID0_3/ETHSYS_CHIPID4_7 registers
in mtk_probe().
Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 3003195..a5b422b 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -342,6 +342,10 @@
#define GPIO_BIAS_CTRL 0xed0
#define GPIO_DRV_SEL10 0xf00
+/* ethernet subsystem chip id register */
+#define ETHSYS_CHIPID0_3 0x0
+#define ETHSYS_CHIPID4_7 0x4
+
/* ethernet subsystem config register */
#define ETHSYS_SYSCFG0 0x14
#define SYSCFG0_GE_MASK 0x3
@@ -534,6 +538,7 @@
unsigned long sysclk;
struct regmap *ethsys;
struct regmap *pctl;
+ u32 chip_id;
bool hwlro;
atomic_t dma_refcnt;
struct mtk_tx_ring tx_ring;