[U-Boot] [PATCH 1/2] powerpc/t2080qds: fixup dtb for 10g-kr

[shh.xie at gmail.com]

From: Shaohui Xie <Shaohui.Xie at freescale.com>

XFI ports on t2080qds can work with fiber cable and direct attach
cable(copper). We use hwconfig to define cable type for XFI, and fixup
dtb based on the cable type.

For copper cable, set below env in hwconfig:

fsl_10gkr_copper:<10g_mac_name>

the <10g_mac_name> can be fm1_10g1, fm1_10g2, fm1_10g3, fm1_10g4.
fm1_10g1 stands for FM1-MAC9, fm1_10g2 stands for FM1-MAC10, fm1_10g3
stands for FM1-MAC1, fm1_10g4 stands for FM1-MAC2. The four
<10g_mac_name>s do not have to be coexist in hwconfig. For XFI ports, if
a given 10G port will use the copper cable for 10GBASE-KR, set the
<10g_mac_name> of the port in hwconfig, otherwise, fiber cable will be
assumed to be used for the port.

For ex. if four XFI ports will both use copper cable, the hwconfig
should contain:

fsl_10gkr_copper:fm1_10g1,fm1_10g2,fm1_10g3,fm1_10g4

Signed-off-by: Shaohui Xie <Shaohui.Xie at freescale.com>
---
 board/freescale/t208xqds/eth_t208xqds.c | 86 +++++++++++++++++++++++++++++----
 1 file changed, 77 insertions(+), 9 deletions(-)

diff --git a/board/freescale/t208xqds/eth_t208xqds.c b/board/freescale/t208xqds/eth_t208xqds.c
index 5879198..8675dbb 100644
--- a/board/freescale/t208xqds/eth_t208xqds.c
+++ b/board/freescale/t208xqds/eth_t208xqds.c
@@ -23,6 +23,7 @@
 #include <phy.h>
 #include <asm/fsl_dtsec.h>
 #include <asm/fsl_serdes.h>
+#include <hwconfig.h>
 #include "../common/qixis.h"
 #include "../common/fman.h"
 #include "t208xqds_qixis.h"
@@ -187,7 +188,12 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
 {
 	int phy;
 	char alias[20];
+	char lane_mode[2][20] = {"1000BASE-KX", "10GBASE-KR"};
+	char buf[32] = "serdes-1,";
 	struct fixed_link f_link;
+	int media_type = 0;
+	int off;
+
 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	u32 srds_s1 = in_be32(&gur->rcwsr[4]) &
 				FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
@@ -265,15 +271,77 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
 		case 0x6c:
 		case 0x6d:
 		case 0x71:
-			f_link.phy_id = port;
-			f_link.duplex = 1;
-			f_link.link_speed = 10000;
-			f_link.pause = 0;
-			f_link.asym_pause = 0;
-			/* no PHY for XFI */
-			fdt_delprop(fdt, offset, "phy-handle");
-			fdt_setprop(fdt, offset, "fixed-link", &f_link,
-				    sizeof(f_link));
+			/*
+			* if the 10G is XFI, check hwconfig to see what is the
+			* media type, there are two types, fiber or copper,
+			* fix the dtb accordingly.
+			*/
+			switch (port) {
+			case FM1_10GEC1:
+			if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g1")) {
+				/* it's MAC9 */
+				media_type = 1;
+				fdt_set_phy_handle(fdt, compat, addr,
+						"phy_xfi9");
+				fdt_status_okay_by_alias(fdt, "xfi_pcs_mdio9");
+				sprintf(buf, "%s%s%s", buf, "lane-a,",
+						(char *)lane_mode[1]);
+			}
+				break;
+			case FM1_10GEC2:
+			if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g2")) {
+				/* it's MAC10 */
+				media_type = 1;
+				fdt_set_phy_handle(fdt, compat, addr,
+						"phy_xfi10");
+				fdt_status_okay_by_alias(fdt, "xfi_pcs_mdio10");
+				sprintf(buf, "%s%s%s", buf, "lane-b,",
+						(char *)lane_mode[1]);
+			}
+				break;
+			case FM1_10GEC3:
+			if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g3")) {
+				/* it's MAC1 */
+				media_type = 1;
+				fdt_set_phy_handle(fdt, compat, addr,
+						"phy_xfi1");
+				fdt_status_okay_by_alias(fdt, "xfi_pcs_mdio1");
+				sprintf(buf, "%s%s%s", buf, "lane-c,",
+						(char *)lane_mode[1]);
+			}
+				break;
+			case FM1_10GEC4:
+			if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g4")) {
+				/* it's MAC2 */
+				media_type = 1;
+				fdt_set_phy_handle(fdt, compat, addr,
+						"phy_xfi2");
+				fdt_status_okay_by_alias(fdt, "xfi_pcs_mdio2");
+				sprintf(buf, "%s%s%s", buf, "lane-d,",
+						(char *)lane_mode[1]);
+			}
+				break;
+			default:
+				return;
+			}
+
+			if (!media_type) {
+				/* fixed-link is used for XFI fiber cable */
+				f_link.phy_id = port;
+				f_link.duplex = 1;
+				f_link.link_speed = 10000;
+				f_link.pause = 0;
+				f_link.asym_pause = 0;
+				fdt_delprop(fdt, offset, "phy-handle");
+				fdt_setprop(fdt, offset, "fixed-link", &f_link,
+					sizeof(f_link));
+			} else {
+				/* set property for copper cable */
+				off = fdt_node_offset_by_compat_reg(fdt,
+					"fsl,fman-memac-mdio", addr + 0x1000);
+				fdt_setprop_string(fdt, off,
+					"lane-instance", buf);
+			}
 			break;
 		default:
 			break;
-- 
1.8.0