| Message ID | 20210630134814.7748-1-jon.lin@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add Rockchip SFC(serial flash controller) support | expand |
On Wed, Jun 30, 2021 at 09:48:14PM +0800, Jon Lin wrote: > From: Chris Morgan <macromorgan@hotmail.com> > > This enables the Rockchip Serial Flash Controller for the Odroid Go > Advance. Note that while the attached SPI NOR flash and the controller > both support quad read mode, only 2 of the required 4 pins are present. > The rx and tx bus width is set to 2 for this reason. > > Signed-off-by: Chris Morgan <macromorgan@hotmail.com> > Signed-off-by: Jon Lin <jon.lin@rock-chips.com> > --- > > Changes in v10: None > Changes in v9: None > Changes in v8: None > Changes in v7: None > Changes in v6: None > Changes in v5: None > Changes in v4: None > Changes in v3: None > Changes in v2: None > Changes in v1: None > > .../boot/dts/rockchip/rk3326-odroid-go2.dts | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts > index 49c97f76df77..f78e11dd8447 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts > +++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts > @@ -484,6 +484,22 @@ > status = "okay"; > }; > > +&sfc { > + pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus2>; > + pinctrl-names = "default"; > + #address-cells = <1>; > + #size-cells = <0>; > + status = "okay"; > + > + flash@0 { > + compatible = "jedec,spi-nor"; > + reg = <0>; > + spi-max-frequency = <108000000>; > + spi-rx-bus-width = <2>; > + spi-tx-bus-width = <2>; Confirmed on the latest patch I still need to set the spi-tx-bus-width to 1 otherwise I receive the following errors: This is when I do the test case of reading 4MB of random data from /dev/urandom, then writing it to the last 4MB of the SPI flash, then reading it back and comparing the md5sum to see if the data is different. I usually get the errors below on the writing stage if the spi-tx-bus-width is 2, but if it is 1 things progress as expected and the hashes match (which I consider a passing test case). Given you have tested this same controller/SPI-NOR combination I'm assuming this is a board errata of some kind. Can we change the spi-tx-bus-width to 1 for this reason? [ 145.863221] mtdblock: erase of region [0xe28000, 0x1000] on "spi2.0" failed [ 145.871080] blk_update_request: I/O error, dev mtdblock0, sector 29000 op 0x1:(WRITE) flags 0x4800 phys_seg 5 prio class 0 [ 145.883529] Buffer I/O error on dev mtdblock0, logical block 3625, lost async page write Sorry I haven't responded to messages lately, I was out of town on vacation the last 2 weeks. I'll check the U-boot driver next. > + }; > +}; > + > &tsadc { > status = "okay"; > }; > -- > 2.17.1 > > >
diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts index 49c97f76df77..f78e11dd8447 100644 --- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts +++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts @@ -484,6 +484,22 @@ status = "okay"; }; +&sfc { + pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus2>; + pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <108000000>; + spi-rx-bus-width = <2>; + spi-tx-bus-width = <2>; + }; +}; + &tsadc { status = "okay"; };