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arm: mvebu: turris_mox: Use DM registered MDIO

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In order to be able to get rid of the non-DM MDIO bus registered in
mvneta driver, start using the DM registered one in Turris MOX board
code.

This also allows us to drop the hack introduced in MOX' -u-boot.dtsi
file.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2022-04-27 12:41:50 +02:00 committed by Stefan Roese
parent 00b1bad961
commit 0ce0feb046
2 changed files with 44 additions and 63 deletions
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19
arch/arm/dts/armada-3720-turris-mox-u-boot.dtsi
View File

@ -3,25 +3,6 @@
* 2022 by Marek Behún <kabel@kernel.org>
*/
/ {
mdio {
#address-cells = <1>;
#size-cells = <0>;
old_binding_phy1: ethernet-phy@1 {
reg = <1>;
};
};
};
&eth0 {
pinctrl-0 = <&rgmii_pins>, <&smi_pins>;
/delete-property/ phy-handle;
phy = <&old_binding_phy1>;
};
/delete-node/ &mdio;
&usb3 {
vbus-supply = <&exp_usb3_vbus>;
};

88
board/CZ.NIC/turris_mox/turris_mox.c
View File

@ -13,6 +13,7 @@
#include <button.h>
#include <clk.h>
#include <dm.h>
#include <dm/of_extra.h>
#include <env.h>
#include <fdt_support.h>
#include <init.h>
@ -216,35 +217,35 @@ static int mox_get_topology(const u8 **ptopology, int *psize, int *pis_sd)
#define SW_SMI_CMD_R(d, r) (0x9800 | (((d) & 0x1f) << 5) | ((r) & 0x1f))
#define SW_SMI_CMD_W(d, r) (0x9400 | (((d) & 0x1f) << 5) | ((r) & 0x1f))
static int sw_multi_read(struct mii_dev *bus, int sw, int dev, int reg)
static int sw_multi_read(struct udevice *bus, int sw, int dev, int reg)
{
bus->write(bus, sw, 0, 0, SW_SMI_CMD_R(dev, reg));
dm_mdio_write(bus, sw, MDIO_DEVAD_NONE, 0, SW_SMI_CMD_R(dev, reg));
mdelay(5);
return bus->read(bus, sw, 0, 1);
return dm_mdio_read(bus, sw, MDIO_DEVAD_NONE, 1);
}
static void sw_multi_write(struct mii_dev *bus, int sw, int dev, int reg,
static void sw_multi_write(struct udevice *bus, int sw, int dev, int reg,
u16 val)
{
bus->write(bus, sw, 0, 1, val);
bus->write(bus, sw, 0, 0, SW_SMI_CMD_W(dev, reg));
dm_mdio_write(bus, sw, MDIO_DEVAD_NONE, 1, val);
dm_mdio_write(bus, sw, MDIO_DEVAD_NONE, 0, SW_SMI_CMD_W(dev, reg));
mdelay(5);
}
static int sw_scratch_read(struct mii_dev *bus, int sw, int reg)
static int sw_scratch_read(struct udevice *bus, int sw, int reg)
{
sw_multi_write(bus, sw, 0x1c, 0x1a, (reg & 0x7f) << 8);
return sw_multi_read(bus, sw, 0x1c, 0x1a) & 0xff;
}
static void sw_led_write(struct mii_dev *bus, int sw, int port, int reg,
static void sw_led_write(struct udevice *bus, int sw, int port, int reg,
u16 val)
{
sw_multi_write(bus, sw, port, 0x16, 0x8000 | ((reg & 7) << 12)
| (val & 0x7ff));
}
static void sw_blink_leds(struct mii_dev *bus, int peridot, int topaz)
static void sw_blink_leds(struct udevice *bus, int peridot, int topaz)
{
int i, p;
struct {
@ -275,7 +276,7 @@ static void sw_blink_leds(struct mii_dev *bus, int peridot, int topaz)
}
}
static void check_switch_address(struct mii_dev *bus, int addr)
static void check_switch_address(struct udevice *bus, int addr)
{
if (sw_scratch_read(bus, addr, 0x70) >> 3 != addr)
printf("Check of switch MDIO address failed for 0x%02x\n",
@ -374,36 +375,22 @@ static void mox_phy_modify(struct phy_device *phydev, int page, int reg,
static void mox_phy_leds_start_blinking(void)
{
struct phy_device *phydev;
struct mii_dev *bus;
const char *node_name;
int node;
ofnode phy_node;
node = fdt_path_offset(gd->fdt_blob, "ethernet0");
if (node < 0) {
printf("Cannot get eth0!\n");
return;
}
phy_node = ofnode_get_phy_node(ofnode_path("ethernet0"));
if (!ofnode_valid(phy_node))
goto err;
node_name = fdt_get_name(gd->fdt_blob, node, NULL);
if (!node_name) {
printf("Cannot get eth0 node name!\n");
return;
}
bus = miiphy_get_dev_by_name(node_name);
if (!bus) {
printf("Cannot get MDIO bus device!\n");
return;
}
phydev = phy_find_by_mask(bus, BIT(1));
if (!phydev) {
printf("Cannot get ethernet PHY!\n");
return;
}
phydev = dm_phy_find_by_ofnode(phy_node);
if (!phydev)
goto err;
mox_phy_modify(phydev, 3, 0x12, 0x700, 0x400);
mox_phy_modify(phydev, 3, 0x10, 0xff, 0xbb);
return;
err:
printf("Cannot get ethernet PHY!\n");
}
static bool read_reset_button(void)
@ -611,6 +598,26 @@ int show_board_info(void)
return 0;
}
static struct udevice *mox_mdio_bus(void)
{
struct udevice *bus;
ofnode node;
node = ofnode_by_compatible(ofnode_null(), "marvell,orion-mdio");
if (!ofnode_valid(node))
goto err;
dm_mdio_probe_devices();
if (uclass_get_device_by_ofnode(UCLASS_MDIO, node, &bus))
goto err;
return bus;
err:
printf("Cannot get MDIO bus device!\n");
return NULL;
}
int last_stage_init(void)
{
struct gpio_desc reset_gpio = {};
@ -636,16 +643,9 @@ int last_stage_init(void)
* 0x70 of Peridot (and potentially Topaz) modules
*/
if (peridot || topaz) {
struct mii_dev *bus;
const char *node_name;
int node;
struct udevice *bus = mox_mdio_bus();
node = fdt_path_offset(gd->fdt_blob, "ethernet0");
node_name = (node >= 0) ? fdt_get_name(gd->fdt_blob, node, NULL) : NULL;
bus = node_name ? miiphy_get_dev_by_name(node_name) : NULL;
if (!bus) {
printf("Cannot get MDIO bus device!\n");
} else {
if (bus) {
int i;
for (i = 0; i < peridot; ++i)