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| author | Sander Vanheule <sander@svanheule.net> | 2020-07-19 20:01:48 +0200 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2020-11-23 22:53:15 +0100 |
| commit | 8dd2a1715b0a59407cf90c0708fc2bc199e110b5 (patch) | |
| tree | 2574fe249fed357cfc0457dbaa1522876781714e /target/linux/ath79/files | |
| parent | c0af4a0ca259022d9d2dedcfb31e11ab46e443c2 (diff) | |
| download | upstream-8dd2a1715b0a59407cf90c0708fc2bc199e110b5.tar.gz upstream-8dd2a1715b0a59407cf90c0708fc2bc199e110b5.tar.bz2 upstream-8dd2a1715b0a59407cf90c0708fc2bc199e110b5.zip | |
ath79: ensure QCA956x gmac0 mux selects sgmii
Some bootloaders do not set up gmac0 properly, leaving it disconnected
from the sgmii interface. If the user specificies phy-mode sgmii, then
use the gmac-config/device node to ensure the mux is configured
correctly.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Diffstat (limited to 'target/linux/ath79/files')
| -rw-r--r-- | target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c index d611007a86..7b292cc005 100644 --- a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c @@ -665,6 +665,37 @@ out: of_node_put(np); } +static void ag71xx_mux_select_sgmii_qca956x(struct device_node *np) +{ + struct device_node *np_dev; + void __iomem *gmac_base; + u32 t; + + np = of_get_child_by_name(np, "gmac-config"); + if (!np) + return; + + np_dev = of_parse_phandle(np, "device", 0); + if (!np_dev) + goto out; + + gmac_base = of_iomap(np_dev, 0); + if (!gmac_base) { + pr_err("%pOF: can't map GMAC registers\n", np_dev); + goto err_iomap; + } + + t = __raw_readl(gmac_base + QCA956X_GMAC_REG_ETH_CFG); + t |= QCA956X_ETH_CFG_GE0_SGMII; + __raw_writel(t, gmac_base + QCA956X_GMAC_REG_ETH_CFG); + + iounmap(gmac_base); +err_iomap: + of_node_put(np_dev); +out: + of_node_put(np); +} + static void ath79_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if) { u32 t; @@ -1566,6 +1597,10 @@ static int ag71xx_probe(struct platform_device *pdev) return ag->phy_if_mode; } + if (of_device_is_compatible(np, "qca,qca9560-eth") && + ag->phy_if_mode == PHY_INTERFACE_MODE_SGMII) + ag71xx_mux_select_sgmii_qca956x(np); + if (of_property_read_u32(np, "qca,mac-idx", &ag->mac_idx)) ag->mac_idx = -1; if (ag->mii_base) |