Hi, On 3/24/21 4:45 AM, Sunny Wang wrote:
Merge changes in edk2-platforms-raspberrypi-pl011-bth-noflow.diff in https://github.com/worproject/RPi-Bluetooth-Testing/ for enabling Bluetooth and serial port (Mini UART) in Windows OS.Testing Done: - Successfully booted Windows 10 (20279.1) on SD (made by WOR) with the RPi-Windows-Drivers release ver 0.5 downloaded from https://github.com/worproject/RPi-Windows-Drivers/releases and checked that both Bluetooth and serial port (Mini UART) can work fine. Cc: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com> Cc: Sami Mujawar <sami.muja...@arm.com> Cc: Jeremy Linton <jeremy.lin...@arm.com> Cc: Pete Batard <p...@akeo.ie> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Signed-off-by: Sunny Wang <sunny.w...@arm.com> --- Platform/RaspberryPi/AcpiTables/Uart.asl | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Platform/RaspberryPi/AcpiTables/Uart.asl b/Platform/RaspberryPi/AcpiTables/Uart.asl index 8ce297078d..e3165911a6 100644 --- a/Platform/RaspberryPi/AcpiTables/Uart.asl +++ b/Platform/RaspberryPi/AcpiTables/Uart.asl @@ -30,6 +30,12 @@ Device (URT0) { MEMORY32FIXED (ReadWrite, 0, BCM2836_PL011_UART_LENGTH, RMEM) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive) { BCM2836_PL011_UART_INTERRUPT } + + PinFunction (Exclusive, PullDown, BCM_ALT3, "\\_SB.GDV0.GPI0", 0, ResourceConsumer, , ) { 32, 33 } + + // fake the CTS signal as we don't support HW flow control yet + // BCM_ALT2 is set as output (low) by default + PinFunction (Exclusive, PullNone, BCM_ALT2, "\\_SB.GDV0.GPI0", 0, ResourceConsumer, , ) { 31 } }) Method (_CRS, 0x0, Serialized) { @@ -142,7 +148,7 @@ Device(BTH0) // // RPIQ connection for BT_ON/OFF // - GpioIO (Shared, PullUp, 0, 0, IoRestrictionNone, "\\_SB.GDV0.RPIQ", 0, ResourceConsumer, , ) { 128 } + //GpioIO (Shared, PullUp, 0, 0, IoRestrictionNone, "\\_SB.GDV0.RPIQ", 0, ResourceConsumer, , ) { 128 } }) Return (RBUF) }
Having come to this a bit late, its always made me a bit uncomfortable that some of these tables are doing blanket power/etc configuration in _CRS, is there are reason for continuing this rather than doing this via power states?
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