From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/7] ARM: OMAP4+: emif: Detect SDRAM from SDRAM config register
Date: Thu, 31 Jan 2013 11:29:58 -0500 [thread overview]
Message-ID: <510A9C06.6030102@ti.com> (raw)
In-Reply-To: <1359611525-19017-2-git-send-email-r.sricharan@ti.com>
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On 01/31/2013 12:51 AM, R Sricharan wrote:
> From: Lokesh Vutla <lokeshvutla@ti.com>
>
> Now SDRAM initialization is done on the basis of omap revision.
> Instead this should be done on basis of SDRAM type read from
> EMIF_SDRAM_CONFIG register. This will be helpful to avoid
> unnessecary cpu checks for new boards
>
> Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by:
> Lokesh Vutla <lokeshvutla@ti.com>
Does this mean the ROM is already doing some basic EMIF programming
here? I swear I looked down this path before, when I wanted to share
this code with am33xx and the problem is that while the registers
aren't reset on warm boot, on cold boot they always come up in a
default value, for both DDR2 and DDR3.
Or are you able to get by as the platforms come up with different
default values?
- --
Tom
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next prev parent reply other threads:[~2013-01-31 16:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-31 5:51 [U-Boot] [PATCH 0/7] ARM: OMAP4+: Cleanup clocks, control and emif code R Sricharan
2013-01-31 5:51 ` [U-Boot] [PATCH 1/7] ARM: OMAP4+: emif: Detect SDRAM from SDRAM config register R Sricharan
2013-01-31 16:29 ` Tom Rini [this message]
2013-02-01 6:30 ` R Sricharan
2013-02-01 14:37 ` Tom Rini
2013-01-31 5:52 ` [U-Boot] [PATCH 2/7] ARM: OMAP4+: Change the PRCM structure prototype common for all Socs R Sricharan
2013-01-31 16:40 ` Tom Rini
2013-02-01 6:47 ` R Sricharan
2013-01-31 5:52 ` [U-Boot] [PATCH 3/7] ARM: OMAP4+: Cleanup the clocks layer R Sricharan
2013-01-31 16:42 ` Tom Rini
2013-01-31 5:52 ` [U-Boot] [PATCH 4/7] ARM: OMAP4+: Clean up the pmic code R Sricharan
2013-01-31 17:01 ` Tom Rini
2013-02-01 6:49 ` R Sricharan
2013-01-31 5:52 ` [U-Boot] [PATCH 5/7] ARM: OMAP4+: Cleanup emif specific files R Sricharan
2013-01-31 17:03 ` Tom Rini
2013-01-31 5:52 ` [U-Boot] [PATCH 6/7] ARM: OMAP4+: Make control module register structure generic R Sricharan
2013-01-31 17:05 ` Tom Rini
2013-01-31 5:52 ` [U-Boot] [PATCH 7/7] ARM: OMAP5: Clean up iosettings code R Sricharan
2013-01-31 17:06 ` Tom Rini
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