arm: mvebu: Espressobin: Use DM registered MDIO to configure switch

In order to be able to get rid of the non-DM MDIO bus registered in
mvneta driver, we need to stop using board_network_enable() and instead
use the DM registered MDIO device to configure switch in
last_stage_init().

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/board/Marvell/mvebu_armada-37xx/board.c b/board/Marvell/mvebu_armada-37xx/board.c
index 98e1b36..3e5e0a0 100644 (file)
--- a/board/Marvell/mvebu_armada-37xx/board.c
+++ b/board/Marvell/mvebu_armada-37xx/board.c
@@ -11,6 +11,7 @@
 #include <i2c.h>
 #include <init.h>
 #include <mmc.h>
+#include <miiphy.h>
 #include <phy.h>
 #include <asm/global_data.h>
 #include <asm/io.h>
@@ -254,14 +255,15 @@ int board_xhci_enable(fdt_addr_t base)
        return 0;
 }
 
+#ifdef CONFIG_LAST_STAGE_INIT
 /* Helper function for accessing switch devices in multi-chip connection mode */
-static int mii_multi_chip_mode_write(struct mii_dev *bus, int dev_smi_addr,
+static int mii_multi_chip_mode_write(struct udevice *bus, int dev_smi_addr,
                                     int smi_addr, int reg, u16 value)
 {
        u16 smi_cmd = 0;
 
-       if (bus->write(bus, dev_smi_addr, 0,
-                      MVEBU_SW_SMI_DATA_REG, value) != 0) {
+       if (dm_mdio_write(bus, dev_smi_addr, MDIO_DEVAD_NONE,
+                         MVEBU_SW_SMI_DATA_REG, value) != 0) {
                printf("Error writing to the PHY addr=%02x reg=%02x\n",
                       smi_addr, reg);
                return -EFAULT;
@@ -272,8 +274,8 @@ static int mii_multi_chip_mode_write(struct mii_dev *bus, int dev_smi_addr,
                  (1 << SW_SMI_CMD_SMI_OP_OFF) |
                  (smi_addr << SW_SMI_CMD_DEV_ADDR_OFF) |
                  (reg << SW_SMI_CMD_REG_ADDR_OFF);
-       if (bus->write(bus, dev_smi_addr, 0,
-                      MVEBU_SW_SMI_CMD_REG, smi_cmd) != 0) {
+       if (dm_mdio_write(bus, dev_smi_addr, MDIO_DEVAD_NONE,
+                         MVEBU_SW_SMI_CMD_REG, smi_cmd) != 0) {
                printf("Error writing to the PHY addr=%02x reg=%02x\n",
                       smi_addr, reg);
                return -EFAULT;
@@ -283,11 +285,22 @@ static int mii_multi_chip_mode_write(struct mii_dev *bus, int dev_smi_addr,
 }
 
 /* Bring-up board-specific network stuff */
-int board_network_enable(struct mii_dev *bus)
+int last_stage_init(void)
 {
+       struct udevice *bus;
+       ofnode node;
+
        if (!of_machine_is_compatible("globalscale,espressobin"))
                return 0;
 
+       node = ofnode_by_compatible(ofnode_null(), "marvell,orion-mdio");
+       if (!ofnode_valid(node) ||
+           uclass_get_device_by_ofnode(UCLASS_MDIO, node, &bus) ||
+           device_probe(bus)) {
+               printf("Cannot find MDIO bus\n");
+               return 0;
+       }
+
        /*
         * FIXME: remove this code once Topaz driver gets available
         * A3720 Community Board Only
@@ -327,6 +340,7 @@ int board_network_enable(struct mii_dev *bus)
 
        return 0;
 }
+#endif
 
 #ifdef CONFIG_OF_BOARD_SETUP
 int ft_board_setup(void *blob, struct bd_info *bd)

diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index af30f1b..37e4fdc 100644 (file)
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -25,6 +25,7 @@ CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_ARCH_EARLY_INIT_R=y
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_BOARD_LATE_INIT=y
+CONFIG_LAST_STAGE_INIT=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_FUSE=y
 CONFIG_CMD_GPIO=y