drivers: ethernet: eth_liteeth: Update driver

Correct width when accessing LITEETH_RX_LENGTH register.

Also update register data in device tree to the 32-bit CSR variant.

Signed-off-by: Michal Sieron <[email protected]>

Author: michalsieron

drivers/ethernet/eth_liteeth.c

@@ -129,7 +129,7 @@ static void eth_rx(const struct device *port)
 	key = irq_lock();
 
 	/* get frame's length */
-	len = litex_read32(LITEETH_RX_LENGTH_ADDR);
+	len = litex_read16(LITEETH_RX_LENGTH_ADDR);
 
 	/* which slot is the frame in */
 	context->rxslot = litex_read8(LITEETH_RX_SLOT_ADDR);

dts/riscv/riscv32-litex-vexriscv.dtsi

@@ -117,26 +117,35 @@
 			interrupt-parent = <&intc0>;
 			interrupts = <3 0>;
 			reg = <0xe0009800 0x4
-				0xe0009804 0x8
+				0xe0009804 0x4
+				0xe0009808 0x4
+				0xe000980c 0x4
+				0xe0009810 0x4
+				0xe0009814 0x4
+				0xe0009818 0x4
+				0xe000981c 0x4
+				0xe0009820 0x4
+				0xe0009824 0x4
 				0xe0009828 0x4
 				0xe000982c 0x4
 				0xe0009830 0x4
 				0xe0009834 0x4
-				0xe000983c 0x4
-				0xe0009840 0x8
-				0xe000984c 0x4
 				0xb0000000 0x2000>;
 			local-mac-address = [10 e2 d5 00 00 02];
-			reg-names =
-				"rx_slot",
+			reg-names = "rx_slot",
 				"rx_length",
+				"rx_errors",
+				"rx_ev_status",
 				"rx_ev_pending",
 				"rx_ev_enable",
 				"tx_start",
 				"tx_ready",
+				"tx_level",
 				"tx_slot",
 				"tx_length",
+				"tx_ev_status",
 				"tx_ev_pending",
+				"tx_ev_enable",
 				"buffers";
 			label = "eth0";
 			status = "disabled";