[U-Boot] [Patch v2 4/4] drivers: net/fm: Add Fman support for LS1046A

[Gong Qianyu]

From: Mingkai Hu <mingkai.hu at nxp.com>

This patch adds Fman support for LS1046A SoC.

Signed-off-by: Shaohui Xie <Shaohui.Xie at nxp.com>
Signed-off-by: Mingkai Hu <mingkai.hu at nxp.com>
Signed-off-by: Gong Qianyu <Qianyu.Gong at nxp.com>
---
v2:
 - Add commit messages.

 drivers/net/fm/Makefile |   1 +
 drivers/net/fm/ls1046.c | 123 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 124 insertions(+)

diff --git a/drivers/net/fm/Makefile b/drivers/net/fm/Makefile
index 493cdc6..344fbe2 100644
--- a/drivers/net/fm/Makefile
+++ b/drivers/net/fm/Makefile
@@ -39,3 +39,4 @@ obj-$(CONFIG_PPC_T4080) += t4240.o
 obj-$(CONFIG_PPC_B4420) += b4860.o
 obj-$(CONFIG_PPC_B4860) += b4860.o
 obj-$(CONFIG_LS1043A)	+= ls1043.o
+obj-$(CONFIG_LS1046A)	+= ls1046.o
diff --git a/drivers/net/fm/ls1046.c b/drivers/net/fm/ls1046.c
new file mode 100644
index 0000000..bf55554
--- /dev/null
+++ b/drivers/net/fm/ls1046.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <phy.h>
+#include <fm_eth.h>
+#include <asm/io.h>
+#include <asm/arch/fsl_serdes.h>
+
+#define FSL_CHASSIS2_RCWSR13_EC1		0xe0000000 /* bits 416..418 */
+#define FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII	0x00000000
+#define FSL_CHASSIS2_RCWSR13_EC1_GPIO		0x20000000
+#define FSL_CHASSIS2_RCWSR13_EC1_FTM		0xa0000000
+#define FSL_CHASSIS2_RCWSR13_EC2		0x1c000000 /* bits 419..421 */
+#define FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII	0x00000000
+#define FSL_CHASSIS2_RCWSR13_EC2_GPIO		0x04000000
+#define FSL_CHASSIS2_RCWSR13_EC2_1588		0x08000000
+#define FSL_CHASSIS2_RCWSR13_EC2_FTM		0x14000000
+
+u32 port_to_devdisr[] = {
+	[FM1_DTSEC1] = FSL_CHASSIS2_DEVDISR2_DTSEC1_1,
+	[FM1_DTSEC2] = FSL_CHASSIS2_DEVDISR2_DTSEC1_2,
+	[FM1_DTSEC3] = FSL_CHASSIS2_DEVDISR2_DTSEC1_3,
+	[FM1_DTSEC4] = FSL_CHASSIS2_DEVDISR2_DTSEC1_4,
+	[FM1_DTSEC5] = FSL_CHASSIS2_DEVDISR2_DTSEC1_5,
+	[FM1_DTSEC6] = FSL_CHASSIS2_DEVDISR2_DTSEC1_6,
+	[FM1_DTSEC9] = FSL_CHASSIS2_DEVDISR2_DTSEC1_9,
+	[FM1_DTSEC10] = FSL_CHASSIS2_DEVDISR2_DTSEC1_10,
+	[FM1_10GEC1] = FSL_CHASSIS2_DEVDISR2_10GEC1_1,
+	[FM1_10GEC2] = FSL_CHASSIS2_DEVDISR2_10GEC1_2,
+	[FM1_10GEC3] = FSL_CHASSIS2_DEVDISR2_10GEC1_3,
+	[FM1_10GEC4] = FSL_CHASSIS2_DEVDISR2_10GEC1_4,
+};
+
+static int is_device_disabled(enum fm_port port)
+{
+	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 devdisr2 = in_be32(&gur->devdisr2);
+
+	return port_to_devdisr[port] & devdisr2;
+}
+
+void fman_disable_port(enum fm_port port)
+{
+	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+
+	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
+}
+
+phy_interface_t fman_port_enet_if(enum fm_port port)
+{
+	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
+
+	if (is_device_disabled(port))
+		return PHY_INTERFACE_MODE_NONE;
+
+	if ((port == FM1_10GEC1) && (is_serdes_configured(XFI_FM1_MAC9)))
+		return PHY_INTERFACE_MODE_XGMII;
+
+	if ((port == FM1_DTSEC9) && (is_serdes_configured(XFI_FM1_MAC9)))
+		return PHY_INTERFACE_MODE_NONE;
+
+	if ((port == FM1_10GEC2) && (is_serdes_configured(XFI_FM1_MAC10)))
+		return PHY_INTERFACE_MODE_XGMII;
+
+	if ((port == FM1_DTSEC10) && (is_serdes_configured(XFI_FM1_MAC10)))
+		return PHY_INTERFACE_MODE_NONE;
+
+	if (port == FM1_DTSEC3)
+		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC1) ==
+				FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII)
+			return PHY_INTERFACE_MODE_RGMII;
+
+	if (port == FM1_DTSEC4)
+		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC2) ==
+				FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII)
+			return PHY_INTERFACE_MODE_RGMII;
+
+	/* handle SGMII, only MAC 2/5/6/9/10 available */
+	switch (port) {
+	case FM1_DTSEC2:
+	case FM1_DTSEC5:
+	case FM1_DTSEC6:
+	case FM1_DTSEC9:
+	case FM1_DTSEC10:
+		if (is_serdes_configured(SGMII_FM1_DTSEC2 + port - FM1_DTSEC2))
+			return PHY_INTERFACE_MODE_SGMII;
+		break;
+	default:
+		break;
+	}
+
+	/* handle 2.5G SGMII, only MAC 5/9/10 available */
+	switch (port) {
+	case FM1_DTSEC5:
+	case FM1_DTSEC9:
+	case FM1_DTSEC10:
+		if (is_serdes_configured(SGMII_2500_FM1_DTSEC5 +
+					 port - FM1_DTSEC5))
+			return PHY_INTERFACE_MODE_SGMII_2500;
+		break;
+	default:
+		break;
+	}
+
+	/* handle QSGMII, only MAC 1/5/6/10 available */
+	switch (port) {
+	case FM1_DTSEC1:
+	case FM1_DTSEC5:
+	case FM1_DTSEC6:
+	case FM1_DTSEC10:
+		if (is_serdes_configured(QSGMII_FM1_A))
+			return PHY_INTERFACE_MODE_QSGMII;
+		break;
+	default:
+		break;
+	}
+
+	return PHY_INTERFACE_MODE_NONE;
+}
-- 
2.1.0.27.g96db324