[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20241015225434.3970360-1-chris.packham@alliedtelesis.co.nz>
Date: Wed, 16 Oct 2024 11:54:31 +1300
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: broonie@...nel.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
tsbogend@...ha.franken.de,
markus.stockhausen@....de
Cc: linux-spi@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-mips@...r.kernel.org,
Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v5 0/3] Realtek SPI-NAND controller
This series adds support for the SPI-NAND flash controller on the RTL9300
family of SoCs.
There are 2 physical chip selects which are called SPI_MST_CS0 and SPI_MST_CS1
in the datasheet. Via some pin-strapping these can be assigned to either the
SPI-NOR controller or the SPI-NAND controller. Which means you can end up with
the following permutations
SPI-Flash
Boot Model SPI_MST_CS0 SPI_MST_CS1
---------- ----------- -----------
NOR x1 NOR-CS0 X
NOR x2 NOR-CS0 NOR-CS1
NAND x1 NAND-CS0 X
NAND x2 NAND-CS0 NAND-CS1
NOR+NAND NOR-CS0 NAND-CS0
Chris Packham (3):
dt-bindings: spi: Add realtek,rtl9301-snand
mips: dts: realtek: Add SPI NAND controller
spi: spi-mem: Add Realtek SPI-NAND controller
.../bindings/spi/realtek,rtl9301-snand.yaml | 62 +++
MAINTAINERS | 6 +
arch/mips/boot/dts/realtek/rtl930x.dtsi | 13 +
drivers/spi/Kconfig | 11 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-realtek-rtl-snand.c | 405 ++++++++++++++++++
6 files changed, 498 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/realtek,rtl9301-snand.yaml
create mode 100644 drivers/spi/spi-realtek-rtl-snand.c
--
2.47.0
Powered by blists - more mailing lists