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From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 13/28] mtd: ensure MTD is compiled when ENV_IS_IN_FLASH is selected
Date: Fri, 7 Dec 2018 09:07:41 -0500	[thread overview]
Message-ID: <20181207140741.GC14374@bill-the-cat> (raw)
In-Reply-To: <20181207120933.104866eb@xps13>

On Fri, Dec 07, 2018 at 12:09:33PM +0100, Miquel Raynal wrote:
> Hi Tom, Wolfgang,
[snip]
> So what's our next move? I think Wolfgang had two points:
> * NOR (and everything related to NOR) should not depend on MTD.
> * Same for NAND.
> 
> For NAND this is already too late, NAND code already relies on MTD so
> I am just cleaning Makefiles/Kconfig/defconfigs to avoid the "xxx:
> missing symbol" error. Now, what about NOR? We know that the overhead,
> today, is null, so do you allow me to make NOR depend on MTD or are you
> still opposed to that? I think U-Boot maintenance and future
> changes would be really eased.

Right, so moving forward, I think the plan is:
- For SPL, we acknowledge and continue to allow for one-off drivers that
  don't depend on MTD for NOR/NAND for read-only case.
- For full U-Boot, we continue with the path you're talking about that
  gives us the most long term benefits and where yes, NOR and NAND
  depend on MTD.  We will do this in a way that doesn't grow the binary
  size needlessly but by the same token we aren't going to restrict
  NOR/NAND drivers more harshly than we do the entire rest of the
  project.

-- 
Tom
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  reply	other threads:[~2018-12-07 14:07 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-04 23:56 [U-Boot] [PATCH v3 00/28] MTD defconfigs/Kconfigs/Makefiles heavy cleanup Miquel Raynal
2018-12-04 23:56 ` [U-Boot] [PATCH v3 01/28] Makefile: move MTD-related lines in coherent Makefiles Miquel Raynal
2018-12-05  8:44   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 02/28] mtd: rename CONFIG_NAND -> CONFIG_MTD_RAW_NAND Miquel Raynal
2018-12-05  8:37   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 03/28] mtd: rename CONFIG_MTD -> CONFIG_DM_MTD Miquel Raynal
2018-12-05  8:38   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 04/28] mtd: rename CONFIG_MTD_DEVICE -> CONFIG_MTD Miquel Raynal
2018-12-05  8:38   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 05/28] mtd: ensure MTD is compiled when there is a NOR flash Miquel Raynal
2018-12-05  8:39   ` Boris Brezillon
2018-12-05 12:11   ` Wolfgang Denk
2018-12-04 23:56 ` [U-Boot] [PATCH v3 06/28] mtd: ensure MTD/the raw NAND core are compiled when there is a NAND flash Miquel Raynal
2018-12-05  9:20   ` Boris Brezillon
2018-12-05 12:09   ` Wolfgang Denk
2018-12-04 23:56 ` [U-Boot] [PATCH v3 07/28] mtd: ensure MTD is compiled when there is a SPI NOR flash using MTD Miquel Raynal
2018-12-05  5:58   ` Vignesh R
2018-12-05  7:43     ` Miquel Raynal
2018-12-05  9:21   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 08/28] mtd: ensure UBI is compiled when using fastmap Miquel Raynal
2018-12-05  9:33   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 09/28] mtd: ensure MTD is compiled when UBI is used Miquel Raynal
2018-12-05  9:34   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 10/28] mtd: ensure UBI is compiled when CMD_UBI is selected Miquel Raynal
2018-12-05  9:35   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 11/28] mtd: ensure UBI is compiled when ENV_IS_IN_UBI " Miquel Raynal
2018-12-05  9:35   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 12/28] mtd: ensure MTD_RAW_NAND is compiled when ENV_IS_IN_NAND " Miquel Raynal
2018-12-05  9:37   ` Boris Brezillon
2018-12-04 23:56 ` [U-Boot] [PATCH v3 13/28] mtd: ensure MTD is compiled when ENV_IS_IN_FLASH " Miquel Raynal
2018-12-05  9:46   ` Boris Brezillon
2018-12-05 12:06   ` Wolfgang Denk
2018-12-05 14:32     ` Miquel Raynal
2018-12-05 15:40       ` Schrempf Frieder
2018-12-06  8:10         ` Wolfgang Denk
2018-12-06  8:06       ` Wolfgang Denk
2018-12-06  9:00         ` Boris Brezillon
2018-12-06  9:32           ` Wolfgang Denk
2018-12-06 15:23             ` Miquel Raynal
2018-12-06 15:59               ` Tom Rini
2018-12-06 16:19                 ` Simon Goldschmidt
2018-12-09  8:41                   ` Vignesh R
2018-12-07 11:09                 ` Miquel Raynal
2018-12-07 14:07                   ` Tom Rini [this message]
2018-12-08 15:42               ` Wolfgang Denk
2018-12-04 23:57 ` [U-Boot] [PATCH v3 14/28] mtd: ensure CMD_NAND is compiled when its options are selected Miquel Raynal
2018-12-05 10:01   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 15/28] mtd: ensure MTD is compiled when CMD_MTDPARTS is selected Miquel Raynal
2018-12-05 10:12   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 16/28] configs: move CONFIG_MTD in defconfigs when set in arch includes Miquel Raynal
2018-12-05 10:17   ` Boris Brezillon
2018-12-05 10:53     ` Miquel Raynal
2018-12-05 11:25     ` Miquel Raynal
2018-12-04 23:57 ` [U-Boot] [PATCH v3 17/28] configs: remove raw NAND core from k2g defconfigs Miquel Raynal
2018-12-05 10:19   ` Boris Brezillon
2018-12-05 10:55     ` Miquel Raynal
2018-12-04 23:57 ` [U-Boot] [PATCH v3 18/28] configs: remove MTD support from bcm11130 and M54418TWR defconfigs Miquel Raynal
2018-12-05 10:21   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 19/28] mtd: nand: add includes in NAND core to avoid warnings Miquel Raynal
2018-12-05 10:26   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 20/28] dfu: add dependency on the NAND core Miquel Raynal
2018-12-05 10:27   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 21/28] mtd: nor: NOR flashes depend on MTD Miquel Raynal
2018-12-05 10:31   ` Boris Brezillon
2018-12-05 11:20     ` Miquel Raynal
2018-12-05 12:13   ` Wolfgang Denk
2018-12-04 23:57 ` [U-Boot] [PATCH v3 22/28] mtd: nand: remove dependency on commands in Kconfig Miquel Raynal
2018-12-05 10:29   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 23/28] mtd: ubi: remove dependency on command " Miquel Raynal
2018-12-05 10:39   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 24/28] cmd: mtdparts: show Kconfig options only if the command is selected Miquel Raynal
2018-12-05 10:16   ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 25/28] cmd: nand/sf: isolate legacy code Miquel Raynal
2018-12-05 10:37   ` Boris Brezillon
2018-12-05 10:53     ` Thomas Petazzoni
2018-12-05 11:15       ` Miquel Raynal
2018-12-04 23:57 ` [U-Boot] [PATCH v3 26/28] cmd: make MTD commands depend on MTD Miquel Raynal
2018-12-05 10:42   ` Boris Brezillon
2018-12-05 10:48     ` Miquel Raynal
2018-12-05 10:49       ` Boris Brezillon
2018-12-04 23:57 ` [U-Boot] [PATCH v3 27/28] mtd: simplify Makefile Miquel Raynal
2018-12-04 23:57 ` [U-Boot] [PATCH v3 28/28] mtd: properly handle SPL kbuild lines Miquel Raynal
2018-12-05 10:47   ` Boris Brezillon

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