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| author | Dylan Hung <kobedylan@gmail.com> | 2023-07-27 09:58:14 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-11-05 13:28:40 -0500 |
| commit | 607e7fa622b155865612bd668e3b39f7f2a1069e (patch) | |
| tree | 137e30ce17a184cae76d08240f3011514f5b353c | |
| parent | 91953956d29d104137bb8085a6a73d14fea99e1e (diff) | |
| download | u-boot-607e7fa622b155865612bd668e3b39f7f2a1069e.zip u-boot-607e7fa622b155865612bd668e3b39f7f2a1069e.tar.gz u-boot-607e7fa622b155865612bd668e3b39f7f2a1069e.tar.bz2 | |
net: ftgmac100: Add reset control
Add optional reset control, especially for the Aspeed SOC. For the
hardware without a reset line, the reset assertion/deassertion will be
skipped.
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
| -rw-r--r-- | drivers/net/ftgmac100.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ftgmac100.c b/drivers/net/ftgmac100.c index 587d365..9b536fd 100644 --- a/drivers/net/ftgmac100.c +++ b/drivers/net/ftgmac100.c @@ -13,6 +13,7 @@ #include <common.h> #include <clk.h> +#include <reset.h> #include <cpu_func.h> #include <dm.h> #include <log.h> @@ -91,6 +92,7 @@ struct ftgmac100_data { u32 max_speed; struct clk_bulk clks; + struct reset_ctl *reset_ctl; /* End of RX/TX ring buffer bits. Depend on model */ u32 rxdes0_edorr_mask; @@ -569,6 +571,8 @@ static int ftgmac100_of_to_plat(struct udevice *dev) priv->txdes0_edotr_mask = BIT(15); } + priv->reset_ctl = devm_reset_control_get_optional(dev, NULL); + return clk_get_bulk(dev, &priv->clks); } @@ -594,6 +598,12 @@ static int ftgmac100_probe(struct udevice *dev) if (ret) goto out; + if (priv->reset_ctl) { + ret = reset_deassert(priv->reset_ctl); + if (ret) + goto out; + } + /* * If DM MDIO is enabled, the MDIO bus will be initialized later in * dm_eth_phy_connect @@ -629,6 +639,8 @@ static int ftgmac100_remove(struct udevice *dev) free(priv->phydev); mdio_unregister(priv->bus); mdio_free(priv->bus); + if (priv->reset_ctl) + reset_assert(priv->reset_ctl); clk_release_bulk(&priv->clks); return 0; |