diff options
Diffstat (limited to 'target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch')
| -rw-r--r-- | target/linux/kirkwood/patches-5.4/801-power-reset-linkstation-poweroff-add-new-device.patch | 102 |
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 + |