u-boot.git/arch/x86/include, branch v2016.07

x86: quark: Add platform ASL files

2016-05-30T02:21:12+00:00

This adds basic quark platform ASL files. They are intended to be
included in dsdt.asl of any board that is based on this platform.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: quark: Prepare device.h for inclusion by ASL

2016-05-30T02:21:12+00:00

There is a device.h for quark on-chip devices, mainly for definitions
of internal PCI device numbers, but it's not ready to be included by
ASL files. Update to use hex numbers for PCI dev and __ASSEMBLY__.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: acpi: Make irqroute.asl common

2016-05-30T02:21:12+00:00

The irqroute.asl file is already common enough to all x86 platforms.
Platform ASL files need only provide a irqroute.h to describe how
internal PCI devices and PCIe downstream port devices' INTx pins are
routed to which PIRQ pin.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: acpi: Create a common irqlinks ASL file

2016-05-30T02:21:12+00:00

Move the irqlinks.asl file currently in the BayTrail directory to
a common place to be shared among all x86 platforms. As the PIRQ
routing control programming interface is common to Intel chipsets,
leave the common part in the common file, and move the platform
specific part to the platform files.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: baytrail: Add GPIO ASL description

2016-05-23T07:18:00+00:00

Since BayTrail, Intel starts to use new GPIO IPs in their chipset.
This adds the GPIO ASL, so that OS can load corresponding drivers
for it. On Linux, this is BayTrail pinctrl driver.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: baytrail: Add internal UART ASL description

2016-05-23T07:18:00+00:00

BayTrail integrates an internal ns15550 compatible UART (PNP0501).
Its IRQ is hardwired to IRQ3 in old revision chipset, but in newer
revision one IRQ4 is being used for ISA compatibility. Handle this
correctly in the ASL file.

Linux does not need this ASL, but Windows need this to correctly
discover a COM port existing in the system so that Windows can
show it in the 'Device Manager' window, and expose this COM port
to any terminal emulation application.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: acpi: Switch to ACPI mode by ourselves instead of requested by OSPM

2016-05-23T07:18:00+00:00

Per ACPI spec, during ACPI OS initialization, OSPM can determine
that the ACPI hardware registers are owned by SMI (by way of the
SCI_EN bit in the PM1_CNT register), in which case the ACPI OS
issues the ACPI_ENABLE command to the SMI_CMD port. The SCI_EN bit
effectively tracks the ownership of the ACPI hardware registers.

However since U-Boot does not support SMI, we report all 3 fields
in FADT (SMI_CMD, ACPI_ENABLE, ACPI_DISABLE) as zero, by following
the spec who says: these fields are reserved and must be zero on
system that does not support System Management mode.

U-Boot seems to behave in a correct way that the ACPI spec allows,
at least Linux does not complain, but apparently Windows does not
think so. During Windows bring up debugging, it is observed that
even these 3 fields are zero, Windows are still trying to issue SMI
with hardcoded SMI port address and commands, and expecting SCI_EN
to be changed by the firmware. Eventually Windows gives us a BSOD
(Blue Screen of Death) saying ACPI_BIOS_ERROR and refuses to start.

To fix this, turn on the SCI_EN bit by ourselves. With this patch,
now U-Boot can install and boot Windows 8.1/10 successfully with
the help of SeaBIOS using legacy interface (non-UEFI mode).

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: Prepare configuration tables in dedicated high memory region

2016-05-23T07:18:00+00:00

Currently when CONFIG_SEABIOS is on, U-Boot allocates configuration
tables via normal malloc(). To simplify, use a dedicated memory
region which is reserved on the stack before relocation for this
purpose. Add functions for reserve and malloc.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass

x86: qemu: Move qfw command over to cmd and add Kconfig entry

2016-05-23T07:18:00+00:00

- Move the command portion of arch/x86/cpu/qemu/fw_cfg.c into
  cmd/qemu_fw_cfg.c
- Move arch/x86/include/asm/fw_cfg.h to include/qemu_fw_cfg.h
- Rename ACPI table portion to arch/x86/cpu/qemu/acpi_table.c

Signed-off-by: Tom Rini 
Reviewed-by: Bin Meng

x86: baytrail: Add platform ASL files

2016-05-23T07:18:00+00:00

This adds basic BayTrail platform ASL files. They are intended to be
included in dsdt.asl of any board that is based on this platform.

Note: ACPI mode support for GPIO/LPSS/SCC/LPE are not supported for
now. They will be added in the future.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass