This is a small series to move the ICH driver over to use the driver model PCI API. It involves creating PCH drivers which the ICH driver can use to find out its base address.
At present irq-router is the 'PCH' node in most device tree files. This is not really correct since the router is just one of the functions of the PCH. Another is the SPI bus. So this series also moves irq-router down a level. This still works with the same irq-router driver, since it just searches for the first compatible node it can find.
A driver-model-compatible irq-router driver should be written but that is left for later.
This series unfortunately needs testing on each board since each has a separate change. I have tested minnowmax and chromebook_link so far.
Changes in v4: - Tidy up mentions on control bits in the header file - Return -ENOSYS if the version is unknown - Correct BIOS_CTRL address for PCH7 - Add BIOS_CTRL address for PCH9
Changes in v3: - Add a PCH method to enable/disable SPI flash protection - Drop the pch_init() call - Add a new patch to separate out the read/write trace from normal debugging - Use the set_spi_protect() PCH method
Changes in v2: - Add more detail to the function comment - Rename the last parameter to 'addr' - Update the comment to explain usable of this function - Update the commit message and header file comments - Use an enum for the PCH version - Replace SBASE with SPI base - Add a TODO to check if the init() method can be removed later - Rename the PCH functions - Update the get_version() handle to use an enum - Add a function to obtain the SPI base address - Add enums for BIOS_CTRL register and bits - Rename the PCH functions - Update the get_version() handle to use an enum - Adjust code for earlier commits - Move the SPI base code into the PCH drivers
Simon Glass (8): dm: pci: Move pci_bus_to_hose() to compatibility dm: pci: Add a function to write a BAR dm: pci: Avoid using pci_bus_to_hose() in the uclass dm: Expand the uclass for Platform Controller Hubs (PCH) dm: x86: Add a driver for Intel PCH7 dm: x86: Add a driver for Intel PCH9 spi: ich: Separate out the read/write trace from normal debugging dm: x86: spi: Convert ICH SPI driver to driver model PCI API
arch/x86/cpu/coreboot/pci.c | 3 +- arch/x86/cpu/irq.c | 7 +- arch/x86/cpu/ivybridge/bd82x6x.c | 47 +++++++- arch/x86/dts/bayleybay.dts | 160 +++++++++++++------------- arch/x86/dts/broadwell_som-6896.dts | 23 ++-- arch/x86/dts/chromebook_link.dts | 5 +- arch/x86/dts/chromebox_panther.dts | 33 +++--- arch/x86/dts/crownbay.dts | 150 ++++++++++++------------ arch/x86/dts/galileo.dts | 98 ++++++++-------- arch/x86/dts/minnowmax.dts | 158 ++++++++++++++------------ arch/x86/dts/qemu-x86_i440fx.dts | 26 +++-- arch/x86/dts/qemu-x86_q35.dts | 38 ++++--- arch/x86/lib/Makefile | 1 - drivers/Makefile | 1 + drivers/pch/Makefile | 7 ++ {arch/x86/lib => drivers/pch}/pch-uclass.c | 32 ++++++ drivers/pch/pch7.c | 61 ++++++++++ drivers/pch/pch9.c | 43 +++++++ drivers/pci/pci-uclass.c | 24 ++-- drivers/pci/pci_auto.c | 14 +-- drivers/pci/pci_compat.c | 15 +++ drivers/pci/pci_internal.h | 12 ++ drivers/spi/ich.c | 176 +++++++++-------------------- include/pch.h | 82 ++++++++++++++ include/pci.h | 17 ++- 25 files changed, 757 insertions(+), 476 deletions(-) create mode 100644 drivers/pch/Makefile rename {arch/x86/lib => drivers/pch}/pch-uclass.c (50%) create mode 100644 drivers/pch/pch7.c create mode 100644 drivers/pch/pch9.c create mode 100644 include/pch.h