From: Biju Das <biju.das.jz@bp.renesas.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
Jiri Slaby <jirislaby@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-serial@vger.kernel.org,
Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org
Subject: [PATCH v3 0/5] Renesas SCI fixes
Date: Mon, 20 Mar 2023 10:53:34 +0000 [thread overview]
Message-ID: <20230320105339.236279-1-biju.das.jz@bp.renesas.com> (raw)
RZ/G2UL SMARC EVK has sci pins exposed through PMOD1 interface.
On testing, found that irq handler, tx and rx is broken.
This series fixes these issues.
v2->v3:
* Cced stable@vger.kernel.org
* Added Rx, Tx and Tx end interrupt handler patch.
v1->v2:
* Replaced the wrong fixes tag
* Added a simpler check in sci_init_single() and added a check in
probe to catch invalid interrupt count.
Tested the SCI0 interface on RZ/G2UL by connecting to PMOD USBUART.
39: 0 GICv3 437 Level 1004d000.serial:rx err
40: 12 GICv3 438 Edge 1004d000.serial:rx full
41: 70 GICv3 439 Edge 1004d000.serial:tx empty
42: 18 GICv3 440 Level 1004d000.serial:tx end
Overlay compilation:
--------------------
Enable CONFIG_OF_OVERLAY in defconfig
cpp -nostdinc -I include -I arch -undef -x assembler-with-cpp \
arch/arm64/boot//dts/renesas/r9a07g043u11-smarc.dts \
r9a07g043u11-smarc.dts.tmp
dtc -@ -i include/ -I dts -O dtb -o arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dtb r9a07g043u11-smarc.dts.tmp
cpp -nostdinc -I include -I arch -undef -x assembler-with-cpp \
arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtso \
r9a07g043-smarc.dtso.tmp
dtc -@ -i include/ -I dts -O dtb -o arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtbo r9a07g043-smarc.dtso.tmp
Applying overlay:
-----------------
apply_overlay=tftp 0x48000000 RZ-G2UL/r9a07g043u11-smarc.dtb;fdt addr 0x48000000;fdt resize 8192;tftp 0x4A000000 RZ-G2UL/r9a07g043-smarc.dtbo;fdt apply 0x4A000000
bootcmd-overlay=run apply_overlay;tftp 0x48080000 RZ-G2UL/Image;booti 0x48080000 - 0x48000000
Biju Das (5):
tty: serial: sh-sci: Fix transmit end interrupt handler
tty: serial: sh-sci: Fix Rx on RZ/G2L SCI
tty: serial: sh-sci: Fix Tx on SCI IP
tty: serial: sh-sci: Add support for tx end interrupt handling
arm64: dts: renesas: r9a07g044: Enable sci0 nodes using dt overlay
arch/arm64/boot/dts/renesas/Makefile | 1 +
.../boot/dts/renesas/r9a07g043-smarc.dtso | 45 ++++++++++++
drivers/tty/serial/sh-sci.c | 72 +++++++++++++++++--
drivers/tty/serial/sh-sci.h | 3 +
4 files changed, 115 insertions(+), 6 deletions(-)
create mode 100644 arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtso
--
2.25.1
next reply other threads:[~2023-03-20 10:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 10:53 Biju Das [this message]
2023-03-20 10:53 ` [PATCH v3 1/5] tty: serial: sh-sci: Fix transmit end interrupt handler Biju Das
2023-03-20 10:53 ` [PATCH v3 2/5] tty: serial: sh-sci: Fix Rx on RZ/G2L SCI Biju Das
2023-03-20 19:11 ` Geert Uytterhoeven
2023-03-21 7:55 ` Biju Das
2023-03-20 10:53 ` [PATCH v3 3/5] tty: serial: sh-sci: Fix Tx on SCI IP Biju Das
2023-03-21 8:09 ` Geert Uytterhoeven
2023-03-21 9:04 ` Biju Das
2023-03-20 10:53 ` [PATCH v3 4/5] tty: serial: sh-sci: Add support for tx end interrupt handling Biju Das
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