Hi All,
This patchset add support for creating a mapping for the arbitrary
physical address at the given virtual address. This is needed to enable
support for XHCI USB controller on PCIe bridge on Raspberry Pi 4 board,
on which the USB controller's MMIO area 0x600000000 has to be remapped
somewhere to fit in 4GiB virtual address space when running in ARM 32bit
mode.
This patchset is a continuation of the Raspberry Pi 4 XHCI/PCIe patchset:
https://patchwork.ozlabs.org/project/uboot/list/?series=176453
and the following discussion:
https://lists.denx.de/pipermail/u-boot/2020-May/411086.html
Best regards
Marek Szyprowski
Samsung R&D Institute Poland
Changelog:
v3:
- fixed broken RPi3 and lack of the identity mapping for map_physmem
(for example for the itest command was broken)
- added a patch fixing a new build warning
v2: https://lists.denx.de/pipermail/u-boot/2020-May/411765.html
- fixed ARM64 build
v1: https://lists.denx.de/pipermail/u-boot/2020-May/411765.html
- initial RFC
Patch summary:
Marek Szyprowski (2):
arm: provide a function for boards init code to modify MMU
virtual-physical map
rpi4: add a mapping for the PCIe XHCI controller MMIO registers (ARM
32bit)
Seung-Woo Kim (1):
mmc: bcm283x: fix int to pointer cast
arch/arm/include/asm/mmu.h | 8 ++++++++
arch/arm/include/asm/system.h | 11 +++++++++++
arch/arm/lib/cache-cp15.c | 24 ++++++++++++++++++------
arch/arm/mach-bcm283x/Kconfig | 1 +
arch/arm/mach-bcm283x/include/mach/base.h | 8 ++++++++
arch/arm/mach-bcm283x/init.c | 20 ++++++++++++++++++++
drivers/mmc/bcm2835_sdhci.c | 2 +-
include/configs/rpi.h | 7 +++++++
8 files changed, 74 insertions(+), 7 deletions(-)
create mode 100644 arch/arm/include/asm/mmu.h