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sunxi: Fix A20-OLinuXino-MICRO LAN8710 support

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>From revision J the board uses new phy chip LAN8710. Compared
with RTL8201, RA17 pin is TXERR. It has pullup which causes phy
not to work. To fix this PA17 is muxed with GMAC function. This
makes the pin output-low.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Stefan Mavrodiev 2017-11-03 08:56:51 +02:00 committed by Jagan Teki
parent 6408917821
commit aba3924927
4 changed files with 14 additions and 0 deletions
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4
board/sunxi/gmac.c
View file

@ -33,7 +33,11 @@ void eth_init_board(void)
#ifndef CONFIG_MACH_SUN6I
/* Configure pin mux settings for GMAC */
#ifdef CONFIG_SUN7I_GMAC_FORCE_TXERR
for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(17); pin++) {
#else
for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) {
#endif
#ifdef CONFIG_RGMII
/* skip unused pins in RGMII mode */
if (pin == SUNXI_GPA(9) || pin == SUNXI_GPA(14))

1
configs/A20-OLinuXino_MICRO-eMMC_defconfig
View file

@ -19,6 +19,7 @@ CONFIG_SPL_I2C_SUPPORT=y
# CONFIG_SPL_EFI_PARTITION is not set
CONFIG_ETH_DESIGNWARE=y
CONFIG_SUN7I_GMAC=y
CONFIG_SUN7I_GMAC_FORCE_TXERR=y
CONFIG_AXP_ALDO3_VOLT=2800
CONFIG_AXP_ALDO4_VOLT=2800
CONFIG_SCSI=y

1
configs/A20-OLinuXino_MICRO_defconfig
View file

@ -20,6 +20,7 @@ CONFIG_SPL_I2C_SUPPORT=y
# CONFIG_SPL_EFI_PARTITION is not set
CONFIG_ETH_DESIGNWARE=y
CONFIG_SUN7I_GMAC=y
CONFIG_SUN7I_GMAC_FORCE_TXERR=y
CONFIG_AXP_ALDO3_VOLT=2800
CONFIG_AXP_ALDO4_VOLT=2800
CONFIG_SCSI=y

8
drivers/net/Kconfig
View file

@ -244,6 +244,14 @@ config SUN7I_GMAC
help
Enable the support for Sun7i GMAC Ethernet controller
config SUN7I_GMAC_FORCE_TXERR
bool "Force PA17 as gmac function"
depends on SUN7I_GMAC
help
Some ethernet phys needs TXERR control. Since the GMAC
doesn't have such signal, setting PA17 as GMAC function
makes the pin output low, which enables data transmission.
config SUN4I_EMAC
bool "Allwinner Sun4i Ethernet MAC support"
depends on DM_ETH