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-rw-r--r--target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch102
1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch b/target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch
new file mode 100644
index 0000000000..0b3b4ad2d7
--- /dev/null
+++ b/target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch
@@ -0,0 +1,102 @@
+From a2d9c86df8d12646f5bf66920e4f1e6d940cfc62 Mon Sep 17 00:00:00 2001
+From: Pawel Dembicki <paweldembicki@gmail.com>
+Date: Fri, 18 Jun 2021 13:25:33 +0200
+Subject: [PATCH 2/2] power: reset: linkstation-poweroff: add new device
+
+This commit introduces support for NETGEAR ReadyNAS Duo v2.
+This device use bit 4 of LED[2:0] Polarity Control Register to indicate
+AC Power loss.
+
+For more details about AC loss detection in NETGEAR ReadyNAS Duo v2,
+please look at the file:
+RND_5.3.13_WW.src/u-boot/board/mv_feroceon/mv_hal/usibootup/usibootup.c
+from Netgear GPL sources.
+
+Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
+---
+ drivers/power/reset/linkstation-poweroff.c | 43 ++++++++++++++++++++++
+ 1 file changed, 43 insertions(+)
+
+diff --git a/drivers/power/reset/linkstation-poweroff.c b/drivers/power/reset/linkstation-poweroff.c
+index 8691cf98600d..2a92b6052cac 100644
+--- a/drivers/power/reset/linkstation-poweroff.c
++++ b/drivers/power/reset/linkstation-poweroff.c
+@@ -19,6 +19,7 @@
+ #define MII_MARVELL_PHY_PAGE 22
+
+ #define MII_PHY_LED_CTRL 16
++#define MII_PHY_LED_POL_CTRL 17
+ #define MII_88E1318S_PHY_LED_TCR 18
+ #define MII_88E1318S_PHY_WOL_CTRL 16
+ #define MII_M1011_IEVENT 19
+@@ -29,6 +30,8 @@
+ #define LED2_FORCE_ON (0x8 << 8)
+ #define LEDMASK GENMASK(11,8)
+
++#define MII_88E1318S_PHY_LED_POL_LED2 BIT(4)
++
+ struct power_off_cfg {
+ char *mdio_node_name;
+ void (*phy_set_reg)(bool restart);
+@@ -76,11 +79,48 @@ static void linkstation_mvphy_reg_intn(bool restart)
+ dev_err(&phydev->mdio.dev, "Write register failed, %d\n", rc);
+ }
+
++static void readynas_mvphy_set_reg(bool restart)
++{
++ int rc = 0, saved_page;
++ u16 data = 0;
++
++ if(restart)
++ data = MII_88E1318S_PHY_LED_POL_LED2;
++
++ saved_page = phy_select_page(phydev, MII_MARVELL_LED_PAGE);
++ if (saved_page < 0)
++ goto err;
++
++ /* Set the LED[2].0 Polarity bit to the required state */
++ __phy_modify(phydev, MII_PHY_LED_POL_CTRL,
++ MII_88E1318S_PHY_LED_POL_LED2, data);
++
++ if (!data) {
++
++ /* If WOL was enabled and a magic packet was received before powering
++ * off, we won't be able to wake up by sending another magic packet.
++ * Clear WOL status.
++ */
++ __phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_MARVELL_WOL_PAGE);
++ __phy_set_bits(phydev, MII_88E1318S_PHY_WOL_CTRL,
++ MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS);
++ }
++err:
++ rc = phy_restore_page(phydev, saved_page, rc);
++ if (rc < 0)
++ dev_err(&phydev->mdio.dev, "Write register failed, %d\n", rc);
++}
++
+ static const struct power_off_cfg linkstation_power_off_cfg = {
+ .mdio_node_name = "mdio",
+ .phy_set_reg = linkstation_mvphy_reg_intn,
+ };
+
++static const struct power_off_cfg readynas_power_off_cfg = {
++ .mdio_node_name = "mdio-bus",
++ .phy_set_reg = readynas_mvphy_set_reg,
++};
++
+ static int linkstation_reboot_notifier(struct notifier_block *nb,
+ unsigned long action, void *unused)
+ {
+@@ -109,6 +149,9 @@ static const struct of_device_id ls_poweroff_of_match[] = {
+ { .compatible = "buffalo,ls421de",
+ .data = &linkstation_power_off_cfg,
+ },
++ { .compatible = "netgear,readynas-duo-v2",
++ .data = &readynas_power_off_cfg,
++ },
+ { },
+ };
+
+--
+2.25.1
+