RT #82124 Ethernet in U-boot for SF2-DEV-KIT BSP

board/actel/sf2-dev-kit/Makefile

@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= board.o
+COBJS	:= board.o mss_spi/mss_spi.o zl30362_config.o
 
 SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))

board/actel/sf2-dev-kit/board.c

@@ -36,8 +36,29 @@ void dummy_func(void)
 	return;
 }
 
+extern void configure_zl30362(void);
+
+#define SERDES0_LANE3_REGS	0x40029c00
+#define TX_PST_RATIO		0x28
+
 int board_init(void)
 {
+	/* some magic from the Libero design generated source code
+	   to get the PHY working in the SGMII mode */
+	*(volatile uint32_t*)(SERDES0_LANE3_REGS + TX_PST_RATIO) = 0x0;
+	/* configure the ZL30362 Clock Network Synchronizer
+	   (required for Ethernet to function in U-boot and Linux) */
+	configure_zl30362();
+	CORE_SF2_CFG->config_done = 1u; /* Signal to CoreSF2Reset that peripheral
+					   configuration registers have
+					   been written.*/
+#if 0 /* FIXME: init_done is never signalled after a soft reset
+	 if the DDR has been initialized before the reset. */
+	while(!CORE_SF2_CFG->init_done)
+	{
+		;   /* Wait for INIT_DONE from CoreSF2Reset. */
+	}
+#endif
 	return 0;
 }
 

include/asm-arm/arch-m2s/m2s.h

@@ -79,6 +79,15 @@ struct m2s_sysreg {
 #define M2S_SYSREG			((volatile struct m2s_sysreg *)\
 					(M2S_SYSREG_BASE))
 
+struct m2s_coresf2config {
+    unsigned int   config_done;
+    unsigned int   init_done;
+    unsigned int   clr_init_done;
+};
+
+#define CORE_SF2_CFG_BASE		0x40022000u
+#define CORE_SF2_CFG			\
+	((volatile struct m2s_coresf2config *)CORE_SF2_CFG_BASE)
 
 /*
  * Reference clocks enumeration

include/configs/sf2-dev-kit.h

@@ -141,6 +141,21 @@
 #define CONFIG_SYS_RAM_BASE		0xA0000000
 #define CONFIG_SYS_RAM_SIZE		(256 * 1024 * 1024)
 
+/*
+ * Ethernet driver configuration
+ */
+#define CONFIG_NET_MULTI
+#define CONFIG_M2S_ETH
+#define CONFIG_M2S_ETH_MODE_SGMII
+
+#define CONFIG_SYS_RX_ETH_BUFFER	2
+
+/*
+ * Use standard MII PHY API
+ */
+#define CONFIG_MII
+#define CONFIG_SYS_FAULT_ECHO_LINK_DOWN
+
 /*
  * Configuration of the external Flash
  * No NOR Flash
@@ -241,8 +256,8 @@
 #undef CONFIG_CMD_IMLS
 #define CONFIG_CMD_LOADS
 #undef CONFIG_CMD_MISC
-/* #define CONFIG_CMD_NET */
-#undef CONFIG_CMD_NET
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
 #undef CONFIG_CMD_NETBOOT
 #undef CONFIG_CMD_NFS
 #undef CONFIG_CMD_SOURCE