diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2016-09-07 00:38:46 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2016-09-08 00:13:18 +0300 |
| commit | 566e8251625304e291bc1e2e7d57850ccf0502f5 (patch) | |
| tree | d7f0316c3c2ea5e7252fdabea9014785f5e1cc74 /drivers/net/ethernet/stmicro/stmmac/Kconfig | |
| parent | 1b0acbfdb8a8884f18fdb2caa85b4beded2390fb (diff) | |
| download | linux-566e8251625304e291bc1e2e7d57850ccf0502f5.tar.xz | |
net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC
The Ethernet controller available in Meson8b and GXBB SoCs is a Synopsys
DesignWare MAC IP core which is already supported by the stmmac driver.
In addition to the standard stmmac driver some Meson8b / GXBB specific
registers have to be configured for the PHY clocks. These SoC specific
registers are called PRG_ETHERNET_ADDR0 and PRG_ETHERNET_ADDR1 in the
datasheet.
These registers are not backwards compatible with those on Meson 6b,
which is why a new glue driver is introduced. This worked for many
boards because the bootloader programs the PRG_ETHERNET registers
correctly. Additionally the meson6-dwmac driver only sets bit 1 of
PRG_ETHERNET_ADDR0 which (according to the datasheet) is only used
during reset.
Currently all configuration values can be determined automatically,
based on the configured phy-mode (which is mandatory for the stmmac
driver). If required the tx-delay and the mux clock (so it supports
the MPLL2 clock as well) can be made configurable in the future.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/Kconfig | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 8f06a6621ab1..54de17529c97 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -61,13 +61,13 @@ config DWMAC_LPC18XX config DWMAC_MESON tristate "Amlogic Meson dwmac support" default ARCH_MESON - depends on OF && (ARCH_MESON || COMPILE_TEST) + depends on OF && COMMON_CLK && (ARCH_MESON || COMPILE_TEST) help Support for Ethernet controller on Amlogic Meson SoCs. This selects the Amlogic Meson SoC glue layer support for - the stmmac device driver. This driver is used for Meson6 and - Meson8 SoCs. + the stmmac device driver. This driver is used for Meson6, + Meson8, Meson8b and GXBB SoCs. config DWMAC_ROCKCHIP tristate "Rockchip dwmac support" |