From 4e21a555c1dc2eacee9e3ad07f3b112c20b0f7a2 Mon Sep 17 00:00:00 2001
From: Camelia Groza <camelia.groza@nxp.com>
Date: Wed, 16 Jun 2021 17:47:31 +0530
Subject: [PATCH] board: freescale: t208xrdb: add Linux fdt fix-ups for rev D
The T2080RDB boards revisions D and up have updated 10G Aquantia PHYs
connected to MAC1 and MAC2. The second Aquantia PHY is located at a
different address on the MDIO bus compared to rev C (0x8 instead of 0x1).
Fix-up the Linux device tree to update the PHY address for the second
Aquantia PHY on boards revisions D and up. Also rename the PHY node to
reflect the changes.
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
---
board/freescale/t208xrdb/eth_t208xrdb.c | 35 +++++++++++++++++++++++++
board/freescale/t208xrdb/t208xrdb.c | 1 +
board/freescale/t208xrdb/t208xrdb.h | 1 +
include/configs/T208xRDB.h | 6 ++++-
4 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/board/freescale/t208xrdb/eth_t208xrdb.c b/board/freescale/t208xrdb/eth_t208xrdb.c
index 4b44b1617d..e4592eac15 100644
--- a/board/freescale/t208xrdb/eth_t208xrdb.c
+++ b/board/freescale/t208xrdb/eth_t208xrdb.c
@@ -26,6 +26,8 @@
#include <fsl_dtsec.h>
#include <asm/fsl_serdes.h>
+extern u8 get_hw_revision(void);
+
/* Disable the MAC5 and MAC6 "fsl,fman-memac" nodes and the two
* "fsl,dpa-ethernet" nodes that reference them.
*/
@@ -60,6 +62,39 @@ void fdt_fixup_board_fman_ethernet(void *fdt)
}
}
+/* Update the address of the second Aquantia PHY on boards revision D and up.
+ * Also rename the PHY node to align with the address change.
+ */
+void fdt_fixup_board_phy(void *fdt)
+{
+ const char phy_path[] =
+ "/soc@ffe000000/fman@400000/mdio@fd000/ethernet-phy@1";
+ int ret, offset, new_addr = AQR113C_PHY_ADDR2;
+ char new_name[] = "ethernet-phy@00";
+
+ if (get_hw_revision() == 'C')
+ return;
+
+ offset = fdt_path_offset(fdt, phy_path);
+ if (offset < 0) {
+ printf("ethernet-phy@1 node not found in the dts\n");
+ return;
+ }
+
+ ret = fdt_setprop(fdt, offset, "reg", &new_addr, sizeof(new_addr));
+ if (ret < 0) {
+ printf("Unable to set 'reg' for node ethernet-phy@1: %s\n",
+ fdt_strerror(ret));
+ return;
+ }
+
+ sprintf(new_name, "ethernet-phy@%x", new_addr);
+ ret = fdt_set_name(fdt, offset, new_name);
+ if (ret < 0)
+ printf("Unable to rename node ethernet-phy@1: %s\n",
+ fdt_strerror(ret));
+}
+
void fdt_fixup_board_enet(void *fdt)
{
return;
diff --git a/board/freescale/t208xrdb/t208xrdb.c b/board/freescale/t208xrdb/t208xrdb.c
index f7fa65d1a1..1f0cdee0b8 100644
--- a/board/freescale/t208xrdb/t208xrdb.c
+++ b/board/freescale/t208xrdb/t208xrdb.c
@@ -153,6 +153,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
#ifdef CONFIG_SYS_DPAA_FMAN
fdt_fixup_board_fman_ethernet(blob);
fdt_fixup_board_enet(blob);
+ fdt_fixup_board_phy(blob);
#endif
return 0;
diff --git a/board/freescale/t208xrdb/t208xrdb.h b/board/freescale/t208xrdb/t208xrdb.h
index cd0a9f44da..edbc860c9d 100644
--- a/board/freescale/t208xrdb/t208xrdb.h
+++ b/board/freescale/t208xrdb/t208xrdb.h
@@ -10,5 +10,6 @@
void fdt_fixup_board_enet(void *blob);
void pci_of_setup(void *blob, struct bd_info *bd);
void fdt_fixup_board_fman_ethernet(void *blob);
+void fdt_fixup_board_phy(void *blob);
#endif
diff --git a/include/configs/T208xRDB.h b/include/configs/T208xRDB.h
index b5197b3ed9..9449e30bfc 100644
--- a/include/configs/T208xRDB.h
+++ b/include/configs/T208xRDB.h
@@ -537,8 +537,12 @@ unsigned long get_board_ddr_clk(void);
#define RGMII_PHY2_ADDR 0x02
#define CORTINA_PHY_ADDR1 0x0c /* Cortina CS4315 */
#define CORTINA_PHY_ADDR2 0x0d
-#define FM1_10GEC3_PHY_ADDR 0x00 /* Aquantia AQ1202 10G Base-T */
+/* Aquantia AQ1202 10G Base-T used by board revisions up to C */
+#define FM1_10GEC3_PHY_ADDR 0x00
#define FM1_10GEC4_PHY_ADDR 0x01
+/* Aquantia AQR113C 10G Base-T used by board revisions D and up */
+#define AQR113C_PHY_ADDR1 0x00
+#define AQR113C_PHY_ADDR2 0x08
#endif
#ifdef CONFIG_FMAN_ENET
--
2.39.5