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| author | Lech Perczak <lech.perczak@gmail.com> | 2023-12-15 17:25:05 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2024-01-02 22:00:20 +0100 |
| commit | f393ffcac163926bf9dbbda47c25cc7809952609 (patch) | |
| tree | 8b28ef8f506be3cbb626c714b2dfd268e39d7028 /target/linux/ramips | |
| parent | f87b66507e9245e6e02dbc76e2e7b27c9e0bf364 (diff) | |
| download | upstream-f393ffcac163926bf9dbbda47c25cc7809952609.tar.gz upstream-f393ffcac163926bf9dbbda47c25cc7809952609.tar.bz2 upstream-f393ffcac163926bf9dbbda47c25cc7809952609.zip | |
raimps: mtk_eth_soc: drop rst_esw from ESW driver
The ESW core needs to be reset together with FE core, so after the
relevant reset controller lines are moved under FE, drop rst_esw and all
related code, which would not execute anyway, because rst_esw would be
NULL. While at that, ensure that if reset line for EPHY cannot be
claimed, a proper error message is reported.
Fixes: 60fadae62b64 ("ramips: ethernet: ralink: move reset of the esw into the esw instead of fe")
Co-developed-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
[Split out of the bigger commit, provide commit mesage, refactor error
handling]
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
Diffstat (limited to 'target/linux/ramips')
| -rw-r--r-- | target/linux/ramips/files/drivers/net/ethernet/ralink/esw_rt3050.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/esw_rt3050.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/esw_rt3050.c index 47471eb1973..5a36652a116 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/esw_rt3050.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/esw_rt3050.c @@ -237,7 +237,6 @@ struct rt305x_esw { int led_frequency; struct esw_vlan vlans[RT305X_ESW_NUM_VLANS]; struct esw_port ports[RT305X_ESW_NUM_PORTS]; - struct reset_control *rst_esw; struct reset_control *rst_ephy; }; @@ -261,18 +260,6 @@ static inline void esw_rmw_raw(struct rt305x_esw *esw, unsigned reg, __raw_writel(t | val, esw->base + reg); } -static void esw_reset(struct rt305x_esw *esw) -{ - if (!esw->rst_esw) - return; - - reset_control_assert(esw->rst_esw); - usleep_range(60, 120); - reset_control_deassert(esw->rst_esw); - /* the esw takes long to reset otherwise the board hang */ - msleep(10); -} - static void esw_reset_ephy(struct rt305x_esw *esw) { if (!esw->rst_ephy) @@ -466,8 +453,6 @@ static void esw_hw_init(struct rt305x_esw *esw) u8 port_disable = 0; u8 port_map = RT305X_ESW_PMAP_LLLLLL; - esw_reset(esw); - /* vodoo from original driver */ esw_w32(esw, 0xC8A07850, RT305X_ESW_REG_FCT0); esw_w32(esw, 0x00000000, RT305X_ESW_REG_SGC2); @@ -1441,12 +1426,11 @@ static int esw_probe(struct platform_device *pdev) if (reg_init) esw->reg_led_source = be32_to_cpu(*reg_init); - esw->rst_esw = devm_reset_control_get(&pdev->dev, "esw"); - if (IS_ERR(esw->rst_esw)) - esw->rst_esw = NULL; - esw->rst_ephy = devm_reset_control_get(&pdev->dev, "ephy"); - if (IS_ERR(esw->rst_ephy)) + esw->rst_ephy = devm_reset_control_get_exclusive(&pdev->dev, "ephy"); + if (IS_ERR(esw->rst_ephy)) { + dev_err(esw->dev, "failed to get EPHY reset: %pe\n", esw->rst_ephy); esw->rst_ephy = NULL; + } spin_lock_init(&esw->reg_rw_lock); platform_set_drvdata(pdev, esw); |