85xx: Add RMII support for MPC8569MDS

This patch supports UCC working at RMII mode on PIB board, fixup fdt blob to
support rmii in kernel. It also changes the name of enable_mpc8569mds_qe_mdio to
enalbe_mpc8569mds_qe_uec which is  more accurate.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 110 insertions, 3 deletions

diff --git a/board/freescale/mpc8569mds/bcsr.c b/board/freescale/mpc8569mds/bcsr.c
index 17c8478a62..a936edb76e 100644
--- a/board/freescale/mpc8569mds/bcsr.c
+++ b/board/freescale/mpc8569mds/bcsr.c
@@ -35,8 +35,9 @@ void disable_8569mds_flash_write()
 	clrbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 17), BCSR17_FLASH_nWP);
 }
 
-void enable_8569mds_qe_mdio()
+void enable_8569mds_qe_uec()
 {
+#if defined(CONFIG_SYS_UCC_RGMII_MODE)
 	setbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 7),
 			BCSR7_UCC1_GETH_EN | BCSR7_UCC1_RGMII_EN);
 	setbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 8),
@@ -45,6 +46,18 @@ void enable_8569mds_qe_mdio()
 			BCSR9_UCC3_GETH_EN | BCSR9_UCC3_RGMII_EN);
 	setbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 10),
 			BCSR10_UCC4_GETH_EN | BCSR10_UCC4_RGMII_EN);
+#elif defined(CONFIG_SYS_UCC_RMII_MODE)
+	/* Set UCC1-4 working at RMII mode */
+	clrbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 7),
+			BCSR7_UCC1_GETH_EN | BCSR7_UCC1_RGMII_EN);
+	clrbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 8),
+			BCSR8_UCC2_GETH_EN | BCSR8_UCC2_RGMII_EN);
+	clrbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 9),
+			BCSR9_UCC3_GETH_EN | BCSR9_UCC3_RGMII_EN);
+	clrbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 10),
+			BCSR10_UCC4_GETH_EN | BCSR10_UCC4_RGMII_EN);
+	setbits_8((u8 *)(CONFIG_SYS_BCSR_BASE + 9), BCSR9_UCC3_RMII_EN);
+#endif
 }
 
 void disable_8569mds_brd_eeprom_write_protect()
diff --git a/board/freescale/mpc8569mds/bcsr.h b/board/freescale/mpc8569mds/bcsr.h
index 8efe9bd4bf..e5d63c71f5 100644
--- a/board/freescale/mpc8569mds/bcsr.h
+++ b/board/freescale/mpc8569mds/bcsr.h
@@ -76,7 +76,7 @@
 
 void enable_8569mds_flash_write(void);
 void disable_8569mds_flash_write(void);
-void enable_8569mds_qe_mdio(void);
+void enable_8569mds_qe_uec(void);
 void disable_8569mds_brd_eeprom_write_protect(void);
 
 #endif	/* __BCSR_H_ */
diff --git a/board/freescale/mpc8569mds/mpc8569mds.c b/board/freescale/mpc8569mds/mpc8569mds.c
index 387ecad2cf..1e7526a1ae 100644
--- a/board/freescale/mpc8569mds/mpc8569mds.c
+++ b/board/freescale/mpc8569mds/mpc8569mds.c
@@ -47,6 +47,7 @@ const qe_iop_conf_t qe_iop_conf_tab[] = {
 	/* QE_MUX_MDIO */
 	{2,  30, 3, 0, 2}, /* QE_MUX_MDIO              */
 
+#if defined(CONFIG_SYS_UCC_RGMII_MODE)
 	/* UCC_1_RGMII */
 	{2, 11, 2, 0, 1}, /* CLK12 */
 	{0,  0, 1, 0, 3}, /* ENET1_TXD0_SER1_TXD0      */
@@ -107,6 +108,44 @@ const qe_iop_conf_t qe_iop_conf_tab[] = {
 	{2, 17, 2, 0, 2}, /* ENET4_GRXCLK              */
 	{2, 24, 1, 0, 2}, /* ENET4_GTXCLK              */
 
+#elif defined(CONFIG_SYS_UCC_RMII_MODE)
+	/* UCC_1_RMII */
+	{2, 15, 2, 0, 1}, /* CLK16 */
+	{0,  0, 1, 0, 3}, /* ENET1_TXD0_SER1_TXD0      */
+	{0,  1, 1, 0, 3}, /* ENET1_TXD1_SER1_TXD1      */
+	{0,  6, 2, 0, 3}, /* ENET1_RXD0_SER1_RXD0      */
+	{0,  7, 2, 0, 1}, /* ENET1_RXD1_SER1_RXD1      */
+	{0,  4, 1, 0, 2}, /* ENET1_TX_EN_SER1_RTS_B    */
+	{0, 12, 2, 0, 3}, /* ENET1_RX_DV_SER1_CTS_B    */
+
+	/* UCC_2_RMII */
+	{2, 15, 2, 0, 1}, /* CLK16 */
+	{0, 14, 1, 0, 2}, /* ENET2_TXD0_SER2_TXD0      */
+	{0, 15, 1, 0, 2}, /* ENET2_TXD1_SER2_TXD1      */
+	{0, 20, 2, 0, 2}, /* ENET2_RXD0_SER2_RXD0      */
+	{0, 21, 2, 0, 1}, /* ENET2_RXD1_SER2_RXD1      */
+	{0, 18, 1, 0, 2}, /* ENET2_TX_EN_SER2_RTS_B    */
+	{0, 26, 2, 0, 3}, /* ENET2_RX_DV_SER2_CTS_B    */
+
+	/* UCC_3_RMII */
+	{2, 15, 2, 0, 1}, /* CLK16 */
+	{0, 29, 1, 0, 2}, /* ENET3_TXD0_SER3_TXD0      */
+	{0, 30, 1, 0, 3}, /* ENET3_TXD1_SER3_TXD1      */
+	{1,  3, 2, 0, 3}, /* ENET3_RXD0_SER3_RXD0      */
+	{1,  4, 2, 0, 1}, /* ENET3_RXD1_SER3_RXD1      */
+	{1,  1, 1, 0, 1}, /* ENET3_TX_EN_SER3_RTS_B    */
+	{1,  9, 2, 0, 3}, /* ENET3_RX_DV_SER3_CTS_B    */
+
+	/* UCC_4_RMII */
+	{2, 15, 2, 0, 1}, /* CLK16 */
+	{1, 12, 1, 0, 2}, /* ENET4_TXD0_SER4_TXD0      */
+	{1, 13, 1, 0, 2}, /* ENET4_TXD1_SER4_TXD1      */
+	{1, 18, 2, 0, 2}, /* ENET4_RXD0_SER4_RXD0      */
+	{1, 19, 2, 0, 1}, /* ENET4_RXD1_SER4_RXD1      */
+	{1, 16, 1, 0, 2}, /* ENET4_TX_EN_SER4_RTS_B    */
+	{1, 24, 2, 0, 3}, /* ENET4_RX_DV_SER4_CTS_B    */
+#endif
+
 	/* UART1 is muxed with QE PortF bit [9-12].*/
 	{5, 12, 2, 0, 3}, /* UART1_SIN */
 	{5, 9,  1, 0, 3}, /* UART1_SOUT */
@@ -128,7 +167,7 @@ int board_early_init_f (void)
 	enable_8569mds_flash_write();
 
 #ifdef CONFIG_QE
-	enable_8569mds_qe_mdio();
+	enable_8569mds_qe_uec();
 #endif
 
 #if CONFIG_SYS_I2C2_OFFSET
@@ -350,6 +389,61 @@ pci_init_board(void)
 #if defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {
+#if defined(CONFIG_SYS_UCC_RMII_MODE)
+	int nodeoff, off, err;
+	unsigned int val;
+	const u32 *ph;
+	const u32 *index;
+
+	/* fixup device tree for supporting rmii mode */
+	nodeoff = -1;
+	while ((nodeoff = fdt_node_offset_by_compatible(blob, nodeoff,
+				"ucc_geth")) >= 0) {
+		err = fdt_setprop_string(blob, nodeoff, "tx-clock-name",
+						"clk16");
+		if (err < 0) {
+			printf("WARNING: could not set tx-clock-name %s.\n",
+				fdt_strerror(err));
+			break;
+		}
+
+		err = fdt_setprop_string(blob, nodeoff, "phy-connection-type",
+					"rmii");
+		if (err < 0) {
+			printf("WARNING: could not set phy-connection-type "
+				"%s.\n", fdt_strerror(err));
+			break;
+		}
+
+		index = fdt_getprop(blob, nodeoff, "cell-index", 0);
+		if (index == NULL) {
+			printf("WARNING: could not get cell-index of ucc\n");
+			break;
+		}
+
+		ph = fdt_getprop(blob, nodeoff, "phy-handle", 0);
+		if (ph == NULL) {
+			printf("WARNING: could not get phy-handle of ucc\n");
+			break;
+		}
+
+		off = fdt_node_offset_by_phandle(blob, *ph);
+		if (off < 0) {
+			printf("WARNING: could not get phy node	%s.\n",
+				fdt_strerror(err));
+			break;
+		}
+
+		val = 0x7 + *index; /* RMII phy address starts from 0x8 */
+
+		err = fdt_setprop(blob, off, "reg", &val, sizeof(u32));
+		if (err < 0) {
+			printf("WARNING: could not set reg for phy-handle "
+				"%s.\n", fdt_strerror(err));
+			break;
+		}
+	}
+#endif
 	ft_cpu_setup(blob, bd);
 
 #ifdef CONFIG_PCIE1