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From: Carlos Eduardo de Paula <me@carlosedp.com>
To: Sean Anderson <seanga2@gmail.com>
Cc: Damien Le Moal <Damien.LeMoal@wdc.com>,
	"Wladimir J. van der Laan" <laanwj@gmail.com>,
	Anup Patel <Anup.Patel@wdc.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	"linux-riscv@lists.infradead.org"
	<linux-riscv@lists.infradead.org>
Subject: Re: [PATCH 08/10] riscv: Add Kendryte K210 device tree
Date: Tue, 18 Feb 2020 16:26:17 -0300
Message-ID: <CADnnUqenadntSrngNGjnu40inxZWK1Nm3T64BnyY114hEwC_Og@mail.gmail.com> (raw)
In-Reply-To: <8108cb8e-a909-24b0-f1c4-24a5bebf4e65@gmail.com>

On Tue, Feb 18, 2020 at 2:48 PM Sean Anderson <seanga2@gmail.com> wrote:
>
> So the LCD connector is supposed to be for a ST7789V controller, but
> there doesn't appear to be a driver in Linux for it. I don't have an
> appropriate LCD screen, so I will not be able to write a driver.
>

Actually there is a driver and config DRM_PANEL_SITRONIX_ST7789V, in
gpu/drm/panel/panel-sitronix-st7789v.c and also FB_TFT_ST7789V and
CONFIG_FB_TFT_ST7789V with the driver a in
staging/fbtft/fb_st7789v.c. Might be easier :)

Weird that the Kendryte SDK refers to the LCD as NT35310
(https://github.com/kendryte/kendryte-standalone-demo/tree/develop/lcd).

> >>>
> >>> Might help out adding support to it.
> >>
> >> Hmm, maybe. I've been wrangling a bit trying to get the SD card slot to
> >> work.
> >>
> >> --Sean
> >
> > Yes, I started looking at the SD card but had no clue on what needs to
> > be done regarding GPIO - FPIO - SPI pre-reqs for it.
>
> There is no need for GPIOs. The datasheet shows SPI0 as hooked up to the
> SD card, but the default pinconf doesn't have it hooked up. In addition,
> the dedicated SPI0 data lines are already connected to the LCD. For
> these reasons, I decided to hook up SPI1 to the card slot. I have some
> preliminary patches to add FPIOA support to u-boot. If you are
> interested in my current progress, it is availible from [1]. This is not
> a "stable" branch though, and I frequently rebase/force-push to it.
>
> [1] https://github.com/Forty-Bot/u-boot/tree/maix_v6
>

Nice, gonna take a look at it.

> > Wladimir (don't know his email) started playing with UART1 interface
> > to the 8285 module to allow WiFi communication. We thought about
> > having a TUN/TAP interface over it to bring the TCP/IP stack up.
> > https://twitter.com/orionwl/status/1229442145628585990
>
> Nice. I don't think too many raw register pokes should be needed,
> because you are just using a uart to communicate...
>
> --Sean
>


-- 
________________________________________
Carlos Eduardo de Paula
me@carlosedp.com
http://carlosedp.com
http://twitter.com/carlosedp
Linkedin
________________________________________


  reply index

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-12 10:34 [PATCH 00/10] Kendryte k210 SoC boards support Damien Le Moal
2020-02-12 10:34 ` [PATCH 01/10] riscv: Fix gitignore Damien Le Moal
2020-02-20  0:15   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 02/10] riscv: Force flat memory model with no-mmu Damien Le Moal
2020-02-14 20:18   ` Sean Anderson
2020-02-15  2:15     ` Damien Le Moal
2020-02-15  2:26       ` Sean Anderson
2020-02-15  2:40         ` Damien Le Moal
2020-03-02  3:48   ` Anup Patel
2020-03-04 18:38   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 03/10] riscv: Unaligned load/store handling for M_MODE Damien Le Moal
2020-03-02  3:57   ` Anup Patel
2020-03-04 19:28   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 04/10] riscv: Add BUILTIN_DTB support Damien Le Moal
2020-03-02  3:58   ` Anup Patel
2020-03-04 19:28   ` Palmer Dabbelt
2020-03-05  4:58     ` Anup Patel
2020-03-05  5:14       ` Damien Le Moal
2020-03-05  5:37         ` Anup Patel
2020-03-05  6:13           ` Damien Le Moal
2020-03-08  6:10             ` Anup Patel
2020-03-05  8:18         ` Atish Patra
2020-03-07  0:02           ` Sean Anderson
2020-03-07  1:51             ` Atish Patra
2020-03-07  2:08               ` Sean Anderson
2020-03-06 23:56         ` Sean Anderson
2020-02-12 10:34 ` [PATCH 05/10] riscv: Add SOC early init support Damien Le Moal
2020-03-04 19:28   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 06/10] riscv: Add Kendryte K210 SoC support Damien Le Moal
2020-02-14 20:31   ` Sean Anderson
2020-03-04 19:38   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 07/10] riscv: Select required drivers for Kendryte SOC Damien Le Moal
2020-03-02  3:59   ` Anup Patel
2020-03-04 19:44   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 08/10] riscv: Add Kendryte K210 device tree Damien Le Moal
2020-02-14 20:51   ` Sean Anderson
2020-02-15  2:34     ` Damien Le Moal
2020-02-15  2:48       ` Sean Anderson
2020-02-15  3:00         ` Damien Le Moal
2020-02-18 14:12           ` Carlos Eduardo de Paula
2020-02-18 14:18             ` Sean Anderson
2020-02-18 14:30               ` Carlos Eduardo de Paula
2020-02-18 17:48                 ` Sean Anderson
2020-02-18 19:26                   ` Carlos Eduardo de Paula [this message]
2020-02-19  9:06                     ` Wladimir J. van der Laan
2020-02-19 22:28                       ` Sean Anderson
2020-02-20 10:48                         ` Wladimir J. van der Laan
2020-02-22 19:07                       ` Wladimir J. van der Laan
2020-04-01 17:55                         ` Drew Fustini
2020-04-02  2:24                           ` Damien Le Moal
2020-02-19  8:50                   ` Wladimir J. van der Laan
2020-02-27 19:43       ` Sean Anderson
2020-03-02  4:06   ` Anup Patel
2020-03-02  4:15     ` Damien Le Moal
2020-03-02  4:22       ` Anup Patel
2020-03-02  4:51         ` Damien Le Moal
2020-03-02  5:05           ` Anup Patel
2020-03-02  5:08             ` Damien Le Moal
2020-03-07  0:18               ` Sean Anderson
2020-03-07  4:11                 ` Anup Patel
2020-03-04 19:44   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 09/10] riscv: Kendryte K210 default config Damien Le Moal
2020-03-02  4:07   ` Anup Patel
2020-03-04 19:44   ` Palmer Dabbelt
2020-02-12 10:34 ` [PATCH 10/10] riscv: create a loader.bin for the kendryte kflash.py tool Damien Le Moal
2020-03-02  4:08   ` Anup Patel
2020-03-04 19:44   ` Palmer Dabbelt
2020-02-14 15:05 ` [PATCH 00/10] Kendryte k210 SoC boards support Carlos Eduardo de Paula
2020-02-15  2:02   ` Damien Le Moal
2020-02-17 13:28     ` Carlos Eduardo de Paula
2020-02-26 21:31       ` Carlos Eduardo de Paula
2020-02-27  2:18         ` Damien Le Moal
2020-02-28 20:32 ` Sean Anderson
2020-03-02  3:01   ` Damien Le Moal
2020-03-02  3:53     ` Sean Anderson
2020-03-02  4:11       ` Damien Le Moal
2020-03-02  4:18         ` Sean Anderson
2020-03-02  4:54           ` Damien Le Moal
2020-03-02  4:56             ` Sean Anderson
2020-03-02  5:03               ` Damien Le Moal
2020-03-02  4:17       ` Anup Patel
2020-03-02  4:21         ` Sean Anderson
2020-03-02  4:48         ` Damien Le Moal
2020-03-02  4:51           ` Damien Le Moal
2020-03-02  5:02           ` Sean Anderson
2020-03-02  5:11             ` Damien Le Moal
2020-03-02  5:25               ` Sean Anderson
2020-03-02  5:43                 ` Damien Le Moal
2020-03-04 19:44 ` Palmer Dabbelt

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