IPC Mailbox, RemoteProc, RPMsg and rpmsg-net support #4
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Add bindings doc for Bouffalolab UART Driver Signed-off-by: Jisheng Zhang <[email protected]>
Add the driver for Bouffalolab UART IP which is found in Bouffalolab SoCs such as bl808. UART driver probe will create path named "/dev/ttySx". Signed-off-by: Jisheng Zhang <[email protected]>
I want to maintain this Bouffalolab uart driver from now on. Signed-off-by: Jisheng Zhang <[email protected]>
The Bouffalolab bl808 SoC contains three riscv CPUs, namely M0, D0 and LP. The D0 is 64bit RISC-V GC compatible, so can run linux. Signed-off-by: Jisheng Zhang <[email protected]>
Add a baisc dtsi for the bouffalolab bl808 SoC. Signed-off-by: Jisheng Zhang <[email protected]>
Sipeed manufactures a M1S system-on-module and dock board, add basic support for them. Signed-off-by: Jisheng Zhang <[email protected]>
I want to maintain this Bouffalolab riscv SoC entry from now on. Signed-off-by: Jisheng Zhang <[email protected]>
…t/next/linux-next into sdhci/01
Add support for BL808 UART2 and multiple IRQ forwards
Write protect polarity is confirmed backwards, the other quirks may not be needed.
Switch everything to use an SD card based rootfs
ehci controller registers are at address 0x20072000 not 0x20072010
bl808 does not follow the EHCI spec, rearrange the registers to match what they actually implemented
-call devm_free_irq() in shutdown to release ISR registered in startup. -change many functions to take driver private bflb_uart_port * instead of serial_core uart_port * -add to_bflb_uart_port() to assist with above -switch to using uart_port_tx_limited() serial_core helper which is the preferred way to do transmission instead of accessing serial_core xmit buffer directly
Remove quirks that were added during bringup but are not required. This will enable DMA and ADMA on sdcard.
bl808 does not follow the EHCI spec, rearrange the registers to match what they actually implemented
Add MODER RGMII bit to configure MII/RGMII PHY interface. Add TX_BD_EOF End of Frame interrupt status bit. These were taken from smaeul's u-boot: u-boot/u-boot@d19d786
The bl808 EMAC INT_MASK register has reversed polarity, so flip all the bits in it everwhere it is used.
PHY communication was not stable at 2.5MHz, so reduce down to 1MHz.
* Change cells to 3 * remove unused mailboxes for SDHCI and UART
* Only supports attaching to M0 core atm.
* increase MTU size for RPMSG data to 2032 (buffer size is 2048 minus 16 bytes for vring headers). This allows us to transmit faster and especially important for the next patch where we introduce a rpmsg-net (ethernet over rpmsg) driver and don't want to fragment packets down to ~490 bytes) * regardless of source address, we need to announce new rpmsg devices back to M0 for enumeration. * rpmsg-tty device should rettry if there are no buffers available, as the M0 can be slower in processing vrings, causing frequent -ENOMEM errors on the linux side. (this patch is debatable if it should upstream)
* found on the Net. It works but needs some TLC
Hunter1753
referenced
this pull request
in Hunter1753/linux
Mar 21, 2023
Jakub Sitnicki says: ==================== This patch set addresses the syzbot report in [1]. Patch #1 has been suggested by Eric [2]. I extended it to cover the rest of sock_map proto callbacks. Otherwise we would still overflow the stack. Patch #2 contains the actual fix and bug analysis. Patches #3 & #4 add coverage to selftests to trigger the bug. [1] https://lore.kernel.org/all/[email protected]/ [2] https://lore.kernel.org/all/CANn89iK2UN1FmdUcH12fv_xiZkv2G+Nskvmq7fG6aA_6VKRf6g@mail.gmail.com/ --- v1 -> v2: v1: https://lore.kernel.org/r/[email protected] [v1 didn't hit bpf@ ML by mistake] * pull in Eric's patch to protect against recursion loop bugs (Eric) * add a macro helper to check if pointer is inside a memory range (Eric) ==================== Signed-off-by: Alexei Starovoitov <[email protected]>
alexhorner
force-pushed
the
bl808/all
branch
4 times, most recently
from
a235ef5 to
ce94420
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This is the update mailbox code, remoteproc and rpmsg drivers and a rpmsg-net based driver for linux.