From: Neil Armstrong <narmstrong@baylibre.com>
To: broonie@kernel.org
Cc: Neil Armstrong <narmstrong@baylibre.com>,
linux-spi@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/9] spi: meson-spicc: add support for AXG and G12A variants
Date: Thu, 12 Mar 2020 14:31:22 +0100 [thread overview]
Message-ID: <20200312133131.26430-1-narmstrong@baylibre.com> (raw)
The SPICC controller in Amlogic AXG & G12A is capable of driving the
CLK/MOSI/SS signal lines through the idle state which avoid the signals
floating in unexpected state, is capable of using linear clock divider
to reach a much fine tuned range of clocks, while the old controller only
uses a power of two clock divider, result at a more coarse clock range and
finally is capable of running at 80M clock.
The SPICC controller in Amlogic G12A takes the source clock from a specific
clock instead of the bus clock and has a different FIFO size and doesn't
handle the RX Half interrupt the same way as GXL & AXG variants. Thus
the burst management is simplified and takes in account a variable FIFO
size.
Now the controller can support frequencies higher than 30MHz, we need
the setup the I/O line delays in regard of the SPI clock frequency.
Neil Armstrong (7):
spi: meson-spicc: remove unused variables
spi: meson-spicc: support max 80MHz clock
spi: meson-spicc: add min sclk for each compatible
spi: meson-spicc: setup IO line delay
spi: meson-spicc: adapt burst handling for G12A support
dt-bindings: spi: amlogic,meson-gx-spicc: add Amlogic G12A compatible
spi: meson-spicc: add support for Amlogic G12A
Sunny Luo (2):
spi: meson-spicc: enhance output enable feature
spi: meson-spicc: add a linear clock divider support
.../bindings/spi/amlogic,meson-gx-spicc.yaml | 22 +
drivers/spi/Kconfig | 1 +
drivers/spi/spi-meson-spicc.c | 496 +++++++++++++-----
3 files changed, 392 insertions(+), 127 deletions(-)
--
2.22.0
WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <narmstrong@baylibre.com>
To: broonie@kernel.org
Cc: linux-amlogic@lists.infradead.org, linux-spi@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH 0/9] spi: meson-spicc: add support for AXG and G12A variants
Date: Thu, 12 Mar 2020 14:31:22 +0100 [thread overview]
Message-ID: <20200312133131.26430-1-narmstrong@baylibre.com> (raw)
The SPICC controller in Amlogic AXG & G12A is capable of driving the
CLK/MOSI/SS signal lines through the idle state which avoid the signals
floating in unexpected state, is capable of using linear clock divider
to reach a much fine tuned range of clocks, while the old controller only
uses a power of two clock divider, result at a more coarse clock range and
finally is capable of running at 80M clock.
The SPICC controller in Amlogic G12A takes the source clock from a specific
clock instead of the bus clock and has a different FIFO size and doesn't
handle the RX Half interrupt the same way as GXL & AXG variants. Thus
the burst management is simplified and takes in account a variable FIFO
size.
Now the controller can support frequencies higher than 30MHz, we need
the setup the I/O line delays in regard of the SPI clock frequency.
Neil Armstrong (7):
spi: meson-spicc: remove unused variables
spi: meson-spicc: support max 80MHz clock
spi: meson-spicc: add min sclk for each compatible
spi: meson-spicc: setup IO line delay
spi: meson-spicc: adapt burst handling for G12A support
dt-bindings: spi: amlogic,meson-gx-spicc: add Amlogic G12A compatible
spi: meson-spicc: add support for Amlogic G12A
Sunny Luo (2):
spi: meson-spicc: enhance output enable feature
spi: meson-spicc: add a linear clock divider support
.../bindings/spi/amlogic,meson-gx-spicc.yaml | 22 +
drivers/spi/Kconfig | 1 +
drivers/spi/spi-meson-spicc.c | 496 +++++++++++++-----
3 files changed, 392 insertions(+), 127 deletions(-)
--
2.22.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <narmstrong@baylibre.com>
To: broonie@kernel.org
Cc: linux-amlogic@lists.infradead.org, linux-spi@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH 0/9] spi: meson-spicc: add support for AXG and G12A variants
Date: Thu, 12 Mar 2020 14:31:22 +0100 [thread overview]
Message-ID: <20200312133131.26430-1-narmstrong@baylibre.com> (raw)
The SPICC controller in Amlogic AXG & G12A is capable of driving the
CLK/MOSI/SS signal lines through the idle state which avoid the signals
floating in unexpected state, is capable of using linear clock divider
to reach a much fine tuned range of clocks, while the old controller only
uses a power of two clock divider, result at a more coarse clock range and
finally is capable of running at 80M clock.
The SPICC controller in Amlogic G12A takes the source clock from a specific
clock instead of the bus clock and has a different FIFO size and doesn't
handle the RX Half interrupt the same way as GXL & AXG variants. Thus
the burst management is simplified and takes in account a variable FIFO
size.
Now the controller can support frequencies higher than 30MHz, we need
the setup the I/O line delays in regard of the SPI clock frequency.
Neil Armstrong (7):
spi: meson-spicc: remove unused variables
spi: meson-spicc: support max 80MHz clock
spi: meson-spicc: add min sclk for each compatible
spi: meson-spicc: setup IO line delay
spi: meson-spicc: adapt burst handling for G12A support
dt-bindings: spi: amlogic,meson-gx-spicc: add Amlogic G12A compatible
spi: meson-spicc: add support for Amlogic G12A
Sunny Luo (2):
spi: meson-spicc: enhance output enable feature
spi: meson-spicc: add a linear clock divider support
.../bindings/spi/amlogic,meson-gx-spicc.yaml | 22 +
drivers/spi/Kconfig | 1 +
drivers/spi/spi-meson-spicc.c | 496 +++++++++++++-----
3 files changed, 392 insertions(+), 127 deletions(-)
--
2.22.0
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
next reply other threads:[~2020-03-12 13:31 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-12 13:31 Neil Armstrong [this message]
2020-03-12 13:31 ` [PATCH 0/9] spi: meson-spicc: add support for AXG and G12A variants Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` [PATCH 1/9] spi: meson-spicc: remove unused variables Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: remove unused variables" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 2/9] spi: meson-spicc: enhance output enable feature Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: enhance output enable feature" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 3/9] spi: meson-spicc: add a linear clock divider support Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: add a linear clock divider support" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 4/9] spi: meson-spicc: support max 80MHz clock Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: support max 80MHz clock" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 5/9] spi: meson-spicc: add min sclk for each compatible Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: add min sclk for each compatible" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 6/9] spi: meson-spicc: setup IO line delay Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: setup IO line delay" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 7/9] spi: meson-spicc: adapt burst handling for G12A support Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: adapt burst handling for G12A support" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 13:31 ` [PATCH 8/9] dt-bindings: spi: amlogic,meson-gx-spicc: add Amlogic G12A compatible Neil Armstrong
2020-03-12 13:31 ` [PATCH 8/9] dt-bindings: spi: amlogic, meson-gx-spicc: " Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:38 ` Applied "spi: dt-bindings: amlogic, meson-gx-spicc: add Amlogic G12A compatible" to the spi tree Mark Brown
2020-03-12 17:38 ` Mark Brown
2020-03-12 17:38 ` Mark Brown
2020-03-12 17:38 ` Mark Brown
2020-03-12 13:31 ` [PATCH 9/9] spi: meson-spicc: add support for Amlogic G12A Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 13:31 ` Neil Armstrong
2020-03-12 17:39 ` Applied "spi: meson-spicc: add support for Amlogic G12A" to the spi tree Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-03-12 17:39 ` Mark Brown
2020-04-16 16:07 ` [PATCH 0/9] spi: meson-spicc: add support for AXG and G12A variants patchwork-bot+linux-amlogic
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