Create GTDT table to convert arch timer for early boot.
Signed-off-by: Hanjun Guo hanjun.guo@linaro.org --- platforms/rtsm_ve-aemv8a.acpi/gtdt.asl | 37 +++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl b/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl index 068ad4a..26eac38 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl @@ -1,6 +1,7 @@ /* * Copyright (c) 2013, Al Stone al.stone@linaro.org - * + * Hanjun Guo hanjun.guo@linaro.org + * * [GTDT] Generic Timer Description Table * Format: [ByteLength] FieldName : HexFieldValue * @@ -21,22 +22,32 @@ [0004] Flags (decoded below) : 00000001 Memory Present : 1
-[0004] Secure PL1 Interrupt : 00000000 -[0004] SPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +/* In Foundation model's dts file, the last cell of interrupts + * is 0xff01, it means its cpu mask is FF, and trigger type + * and flag is 1 = low-to-high edge triggered. + * + * so in ACPI the Trigger Mode is 1 - Edge triggered, and + * Polarity is 0 - Active high as ACPI spec describled. + * + * using direct mapping for hwirqs, it means that we using + * ID [16, 31] for PPI, not [0, 15] used in FDT. + */ +[0004] Secure PL1 Interrupt : 0000001d +[0004] SPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0
-[0004] Non-Secure PL1 Interrupt : 00000000 -[0004] NSPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL1 Interrupt : 0000001e +[0004] NSPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0
-[0004] Virtual Timer Interrupt : 00000000 -[0004] VT Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Virtual Timer Interrupt : 0000001b +[0004] VT Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0
-[0004] Non-Secure PL2 Interrupt : 00000000 -[0004] NSPL2 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL2 Interrupt : 0000001a +[0004] NSPL2 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0