| Message ID | 20180724042406.15374-4-benh@kernel.crashing.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm: dts: aspeed DTS updates for OpenPower | expand |
On Mon, Jul 23, 2018 at 11:25 PM Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote: > > This switches away from userspace bitbanging to kernel FSI > using the coprocessor. > > Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> > --- > arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts | 28 ++++++++++++++----- > 1 file changed, 21 insertions(+), 7 deletions(-) > > diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts > index c7084a819dc6..e6cfdf3c1a67 100644 > --- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts > +++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts > @@ -26,6 +26,11 @@ > no-map; > reg = <0x5f000000 0x01000000>; /* 16M */ > }; > + > + coldfire_memory: codefire_memory@5ee00000 { typo > + reg = <0x5ee00000 0x00200000>; > + no-map; > + }; > }; > > leds { > @@ -44,6 +49,22 @@ > }; > }; > > + fsi: gpio-fsi { > + compatible = "aspeed,ast2400-cf-fsi-master", "fsi-master"; > + #address-cells = <2>; > + #size-cells = <0>; > + > + memory-region = <&coldfire_memory>; > + aspeed,sram = <&sram>; > + aspeed,cvic = <&cvic>; > + > + clock-gpios = <&gpio ASPEED_GPIO(A, 4) GPIO_ACTIVE_HIGH>; > + data-gpios = <&gpio ASPEED_GPIO(A, 5) GPIO_ACTIVE_HIGH>; > + mux-gpios = <&gpio ASPEED_GPIO(A, 6) GPIO_ACTIVE_HIGH>; > + enable-gpios = <&gpio ASPEED_GPIO(D, 0) GPIO_ACTIVE_HIGH>; > + trans-gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>; > + }; > + > gpio-keys { > compatible = "gpio-keys"; > > @@ -303,13 +324,6 @@ > line-name = "SYS_PWROK_BMC"; > }; > > - pin_gpio_h6 { > - gpio-hog; > - gpios = <ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>; > - output-high; > - line-name = "SCM1_FSI0_DATA_EN"; > - }; > - > pin_gpio_h7 { > gpio-hog; > gpios = <ASPEED_GPIO(H, 7) GPIO_ACTIVE_HIGH>; > -- > 2.17.1 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts index c7084a819dc6..e6cfdf3c1a67 100644 --- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts +++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts @@ -26,6 +26,11 @@ no-map; reg = <0x5f000000 0x01000000>; /* 16M */ }; + + coldfire_memory: codefire_memory@5ee00000 { + reg = <0x5ee00000 0x00200000>; + no-map; + }; }; leds { @@ -44,6 +49,22 @@ }; }; + fsi: gpio-fsi { + compatible = "aspeed,ast2400-cf-fsi-master", "fsi-master"; + #address-cells = <2>; + #size-cells = <0>; + + memory-region = <&coldfire_memory>; + aspeed,sram = <&sram>; + aspeed,cvic = <&cvic>; + + clock-gpios = <&gpio ASPEED_GPIO(A, 4) GPIO_ACTIVE_HIGH>; + data-gpios = <&gpio ASPEED_GPIO(A, 5) GPIO_ACTIVE_HIGH>; + mux-gpios = <&gpio ASPEED_GPIO(A, 6) GPIO_ACTIVE_HIGH>; + enable-gpios = <&gpio ASPEED_GPIO(D, 0) GPIO_ACTIVE_HIGH>; + trans-gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>; + }; + gpio-keys { compatible = "gpio-keys"; @@ -303,13 +324,6 @@ line-name = "SYS_PWROK_BMC"; }; - pin_gpio_h6 { - gpio-hog; - gpios = <ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>; - output-high; - line-name = "SCM1_FSI0_DATA_EN"; - }; - pin_gpio_h7 { gpio-hog; gpios = <ASPEED_GPIO(H, 7) GPIO_ACTIVE_HIGH>;
This switches away from userspace bitbanging to kernel FSI using the coprocessor. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts | 28 ++++++++++++++----- 1 file changed, 21 insertions(+), 7 deletions(-)