linux/arch/arm
Sven Eckelmann 4ccd111f80 ARM: dts: ipq4019: Add TZ and SMEM reserved regions
The QSEE (trustzone) is started on IPQ4019 before Linux is started.
According to QCA, it is placed in in the the memory region
0x87e80000-0x88000000 and must not be accessed directly. There is an
additional memory region 0x87e00000-0x87E80000 smem which which can be used
for communication with the TZ. The driver for the latter is not yet ready
but it is still not allowed to use this memory region like any other
memory region.

Not reserving this memory region either leads to kernel crashes, kernel
hangs (often during the boot) or bus errors for userspace programs. The
latter happens when a program is using a memory region which is mapped to
these physical memory regions.

  [  571.758058] Unhandled fault: imprecise external abort (0xc06) at 0x01715ff8
  [  571.758099] pgd = cebec000
  [  571.763826] [01715ff8] *pgd=8e7fa835, *pte=87e7f75f, *ppte=87e7fc7f
  Bus error

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-05-14 15:17:59 -05:00
..
boot ARM: dts: ipq4019: Add TZ and SMEM reserved regions 2018-05-14 15:17:59 -05:00
common Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next 2018-01-21 15:38:10 +00:00
configs ARM: multi_v7_defconfig: add NXP FlexCAN IP support 2018-03-27 15:38:31 +02:00
crypto kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers 2018-04-07 19:04:02 +09:00
firmware
include page cache: use xa_lock 2018-04-11 10:28:39 -07:00
kernel Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:19:30 -07:00
kvm kvm/arm fixes for 4.16, take 2 2018-03-19 17:43:01 +00:00
lib Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next 2018-01-21 15:38:10 +00:00
mach-actions
mach-alpine
mach-artpec
mach-asm9260
mach-aspeed
mach-at91 ARM: at91: Kconfig: Update company to Microchip 2018-02-28 16:21:51 +01:00
mach-axxia
mach-bcm soc: brcmstb: biuctrl: Move to early_initcall 2017-12-20 17:37:44 -08:00
mach-berlin
mach-clps711x ARM: clps711x: mark clps711x_compat as const 2018-02-22 17:42:42 +01:00
mach-cns3xxx
mach-davinci ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
mach-digicolor
mach-dove
mach-ebsa110
mach-efm32
mach-ep93xx ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivative 2017-12-13 22:26:10 +01:00
mach-exynos ARM: EXYNOS: Simplify code in coupled CPU idle hot path 2018-03-21 18:51:39 +01:00
mach-footbridge
mach-gemini
mach-highbank
mach-hisi
mach-imx ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
mach-integrator
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx w1: w1-gpio: Convert to use GPIO descriptors 2017-12-08 15:32:53 +01:00
mach-keystone
mach-ks8695
mach-lpc18xx
mach-lpc32xx
mach-mediatek ARM: mediatek: use more generic prompts for SoCs with ARMv7 2017-12-20 15:48:18 +01:00
mach-meson Amlogic 32-bit DT changes for v4.16 2017-12-21 16:37:34 +01:00
mach-mmp mtd: nand: remove useless fields from pxa3xx NAND platform data 2018-03-02 21:51:41 +01:00
mach-moxart
mach-mv78xx0
mach-mvebu ARM: mvebu: Fix broken PL310_ERRATA_753970 selects 2018-02-13 16:39:51 +01:00
mach-mxs
mach-netx
mach-nomadik
mach-npcm arm: npcm: enable L2 cache in NPCM7xx architecture 2018-04-10 16:40:03 +02:00
mach-nspire ARM: nspire: Remove unneeded nspire_map_io() 2018-03-07 16:07:35 +01:00
mach-omap1 Move omap timer to drivers for 4.17 2018-03-07 16:16:07 +01:00
mach-omap2 ARM: omap2: fix am43xx build without L2X0 2018-04-05 11:06:41 +02:00
mach-orion5x ARM: orion5x: Revert commit 4904dbda41. 2018-02-26 13:41:47 -05:00
mach-oxnas
mach-picoxcell
mach-prima2
mach-pxa ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
mach-qcom
mach-realview
mach-rockchip ARM: rockchip: Set name of pmu regmap_config in smp code 2018-03-12 11:09:36 +01:00
mach-rpc
mach-s3c24xx spi: spi-gpio: Rewrite to use GPIO descriptors 2018-02-14 16:02:41 +00:00
mach-s3c64xx spi: spi-gpio: Rewrite to use GPIO descriptors 2018-02-14 16:02:41 +00:00
mach-s5pv210 ARM: S5PV210: Add SPDX license identifiers 2018-01-03 18:43:04 +01:00
mach-sa1100 ARM: sa1100/simpad: switch simpad CF to use gpiod APIs 2018-04-06 15:53:22 +01:00
mach-shmobile ARM: shmobile: rcar-gen2: Add watchdog support 2018-03-13 20:54:16 +01:00
mach-socfpga ARM: socfpga: PM: Drop useless check for PM_SUSPEND_STANDBY 2018-03-07 16:08:20 +01:00
mach-spear
mach-sti
mach-stm32 ARM: stm32: restore reboot capabilities 2018-03-05 09:11:58 +01:00
mach-sunxi ARM: sunxi: mc-smp: Split out SoC-specific device node lookup sequence 2018-03-10 16:14:57 +08:00
mach-tango
mach-tegra
mach-u300
mach-uniphier
mach-ux500 ARM: ux500: Fix PMU IRQ regression 2018-03-07 16:42:38 +01:00
mach-versatile
mach-vexpress
mach-vt8500 arm: vt8500: kconfig: Remove blank help text 2018-02-02 23:53:10 +09:00
mach-w90x900
mach-zx
mach-zynq
mm exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
net bpf, arm: remove obsolete exception handling from div/mod 2018-01-26 16:42:07 -08:00
nwfpe
oprofile
plat-iop
plat-omap ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
plat-orion ARM: orion: fix orion_ge00_switch_board_info initialization 2018-02-22 17:48:39 +01:00
plat-pxa
plat-samsung ARM: SAMSUNG: Add SPDX license identifiers 2018-01-03 18:43:13 +01:00
plat-versatile
probes ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code 2017-12-17 22:14:21 +00:00
tools ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivative 2017-12-13 22:26:10 +01:00
vdso
vfp ARM: 8746/1: vfp: Go back to clearing vfp_current_hw_state[] 2018-03-24 14:27:48 +00:00
xen
Kconfig Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:19:30 -07:00
Kconfig-nommu
Kconfig.debug ARM: 8747/1: make CONFIG_DEBUG_WX depend on MMU 2018-03-24 14:27:48 +00:00
Makefile arm: npcm: add basic support for Nuvoton BMCs 2018-03-06 17:54:23 +01:00