The tz and smem reserved-memory information handled in the upstream Linux
sources by the SoC specific dtsi and not by the the boards dts. Using the
same approach in OpenWrt avoids unneccessary duplication.
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
The reserved-memory regions are mostly undocumented by QCA and are named
very unspecific in the QSDK device trees. It was tried to clean them up by
commit 71ed9f10a3 ("ipq40xx: Use detailed reserved memory for A42") and
similar changes.
The features which require these regions were mostly unknown but
Senthilkumar N L <snlakshm@qti.qualcomm.com> and Sricharan Ramabadhran
<srichara@qti.qualcomm.com> provided some more insight in some of them:
* crash dump feature
- a couple of regions used when 'qca,scm_restart_reason' dt node has the
value 'dload_status' not set to 1
+ apps_bl <0x87000000 0x400000>
+ sbl <0x87400000 0x100000>
+ cnss_debug <0x87400000 0x100000>
+ cpu_context_dump <0x87b00000 0x080000>
- required driver not available in Linux
- safe to remove
* QSEE app execution
- region tz_apps <0x87b80000 0x280000>
- required driver not available in Linux
- safe to remove
* communication with TZ/QSEE
- region smem <0x87b80000 0x280000>
- driver changes not yet upstreamed
- must not be removed because any access can crash kernel/program
* trustzone (QSEE) private memory
- region tz <0x87e80000 0x180000>
- must not be removed because any access can crash kernel/program
Removing the unnecessary regions saves some kilobyte of reserved-memory and
cleans up the device tree:
* 2560 KiB
- 8devices Jalapeno
- AVM FRITZ!Box 4040
- Compex WPJ428
- Meraki MR33 Access Point
- OpenMesh A42
* 14336 KiB
- GL.iNet GL-B1300
- Qualcomm Technologies, Inc. IPQ40xx/AP-DK01.1-C1
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
This patch adds support for 8devices Jalapeno.
Specification:
QCA IPQ4018, Quad core ARM v7 Cortex A7 717MHz
256 MB of DDR3 RAM
8 MB of SPI NOR flash
128 MB of Winbond SPI NAND flash
WLAN1: Qualcomm Atheros QCA4018 2.4GHz 802.11bgn 2:2x2
requires special BDF in QCA4019/hw1.0/board-2.bin with:
bus=ahb,bmi-chip-id=0,bmi-board-id=16,variant=8devices-Jalapeno
WLAN2: Qualcomm Atheros QCA4018 5GHz 802.11a/n/ac 2:2x2
requires special BDF in QCA4019/hw1.0/board-2.bin with:
bus=ahb,bmi-chip-id=0,bmi-board-id=17,variant=8devices-Jalapeno
ETH: Qualcomm Atheros QCA8072 Gigabit Switch (1 x LAN, 1 x WAN)
phy@mdio3:
Label: eth0
gmac0
phy@mdio4:
Label: eth1
gmac1
Installation instructions:
Since boards ship with old version of LEDE installation is simple.
Just use sysupgrade -n -F sysupgrade.bin
Syuspgrade needs to be forced since OpenWRT uses DT detection in recent
releases.
If you get error that FIT configuration is not found during boot it is
due to older U-boot used on your board.
That is because 8devices used custom FIT configuration partition name
as they internally had v1 and v2 boards.
Only v2 boards are sold so now they are shipping boards with never
U-boot using generic config@1 FIT partition name.
Also for old uboot it is possible to force loading config@1 by changing
uboot environment:
setenv boot5 'bootm 0x84000000#config@1’
saveenv
Signed-off-by: Robert Marko <robimarko@gmail.com>
Sven Eckelmann
Robert Marko