From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mmc: add generic mmc spi driver
Date: Sun, 25 Apr 2010 02:56:09 -0400 [thread overview]
Message-ID: <201004250256.10907.vapier@gentoo.org> (raw)
In-Reply-To: <4BD1363F.9030204@wytron.com.tw>
On Friday 23 April 2010 01:55:11 Thomas Chou wrote:
> On 04/23/2010 12:04 PM, Thomas Chou wrote:
> >> it's too bad the new framework doesnt allow for dynamic probing like
> >> the spi layer. makes it a pain to work with a SPI/MMC card that can have
> >> the CS changed on the fly.
>
> Second thought.
> With generic mmc framework, we can instance multiple mmc devices. Then
> we can probe one of them when we want.
i dont think that's a scalable solution. what if you have multiple spi busses
or 10's of GPIO CS's ? only way to scale is to have a new subcommand so
people can do it themselves. a simple CONFIG_CMD_MMC_SPI command which
forwards along calls to mmc_spi_init() on the fly would work.
-mike
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next prev parent reply other threads:[~2010-04-25 6:56 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-23 2:53 [U-Boot] [PATCH] mmc: add generic mmc spi driver Thomas Chou
2010-04-23 3:35 ` Mike Frysinger
2010-04-23 4:04 ` Thomas Chou
2010-04-23 5:55 ` Thomas Chou
2010-04-25 6:56 ` Mike Frysinger [this message]
2010-04-26 14:37 ` Thomas Chou
2010-04-26 15:59 ` Mike Frysinger
2010-04-25 6:51 ` Mike Frysinger
2010-04-27 1:51 ` [U-Boot] [PATCH v2] " Thomas Chou
2010-04-27 3:27 ` [U-Boot] [PATCH v3] " Thomas Chou
2010-04-27 16:49 ` Mike Frysinger
2010-04-28 3:14 ` Thomas Chou
2010-04-28 2:50 ` [U-Boot] [PATCH v4] " Thomas Chou
2010-04-28 6:00 ` [U-Boot] [PATCH v5] " Thomas Chou
2010-04-28 15:21 ` Andy Fleming
2010-04-29 5:52 ` Thomas Chou
2010-04-29 14:51 ` Thomas Chou
2010-04-29 19:07 ` Mike Frysinger
2010-04-30 0:16 ` Thomas Chou
2010-05-03 0:54 ` [U-Boot] [PATCH 0/3] mmc: add mmc_spi driver Thomas Chou
2010-05-03 0:54 ` [U-Boot] [PATCH 1/3] lib: add crc7 from Linux Thomas Chou
2010-05-03 0:54 ` [U-Boot] [PATCH 2/3] mmc: add find_mmc_device_quiet that doesnt print not found message Thomas Chou
2010-05-06 22:14 ` Wolfgang Denk
2010-05-07 0:19 ` Thomas Chou
2010-05-07 0:51 ` [U-Boot] [PATCH 2/3 v2] mmc: control message print in find_mmc_device Thomas Chou
2010-05-19 4:31 ` Thomas Chou
2010-05-07 0:51 ` [U-Boot] [PATCH 3/3 v7] mmc: add generic mmc spi driver Thomas Chou
2010-05-03 0:54 ` [U-Boot] [PATCH 3/3 v6] " Thomas Chou
2010-05-19 4:37 ` [U-Boot] [PATCH 3/3 v8] " Thomas Chou
2010-05-28 22:44 ` Thomas Chou
2010-07-05 7:40 ` Mike Frysinger
2010-07-05 14:22 ` Thomas Chou
2010-07-05 20:11 ` Mike Frysinger
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