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arm-trusted-firmware-mediatek: enable built-in 2.5G PHY on MT7988

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Always enable built-in 2.5G PHY on MT7988 for now, so that it can be
used. In future it would be nice to be able to switch power and MDIO
access via address 0 at run-time in Linux, both, to be able to use
external PHYs at address 0 and to reduce power consumption on systems
not using the built-in 2.5G PHY.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2023-08-28 23:44:52 +01:00
parent 78e3adcaf9
commit 33046d2a47
1 changed files with 11 additions and 0 deletions
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11
package/boot/arm-trusted-firmware-mediatek/patches/001-mt7988-enable-2p5g-phy.patch Normal file
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@ -0,0 +1,11 @@
--- a/plat/mediatek/mt7988/bl2/bl2_plat_init.c
+++ b/plat/mediatek/mt7988/bl2/bl2_plat_init.c
@@ -90,6 +90,8 @@ static void mtk_i2p5g_phy_init(void)
* clear bit 22 to use external MDIO.
*/
mmio_setbits_32(GBE_TOP_REG, I2P5G_MDIO);
+ /* Internal 2.5Gphy power on sequence */
+ eth_2p5g_phy_mtcmos_ctrl(true);
}
static void mt7988_i2c_init(void)