On Fri, 24 Jul 2009 15:46:16 +0200 Wolfgang Denk wd@denx.de wrote:
Dear Peter,
In message 20090723190101.C8F8A832E416@gemini.denx.de I wrote:
In message 1247269570-11406-1-git-send-email-ptyser@xes-inc.com you wrote:
Previously, non-e500 architectures only unlocked their data cache which was used as early RAM when booting to Linux using the "bootm" command. This change causes all PPC boards with CONFIG_SYS_INIT_RAM_LOCK defined to unlock their data cache during U-Boot's initialization. This improves U-Boot performance and provides a common cache state when booting to different OSes.
...
Hm... tested on TQM834x - it's still booting, but flash recognition stopped working:
I git-bisected the problem on TQM834x:
982adfc610669482a32127282fe489857a92cfe3 is first bad commit commit 982adfc610669482a32127282fe489857a92cfe3 Author: Peter Tyser ptyser@xes-inc.com Date: Fri Jul 10 18:46:10 2009 -0500
ppc: Unlock cache-as-ram in a consistent manner Previously, non-e500 architectures only unlocked their data cache which was used as early RAM when booting to Linux using the "bootm" command. This change causes all PPC boards with CONFIG_SYS_INIT_RAM_LOCK defined to unlock their data cache during U-Boot's initialization. This improves U-Boot performance and provides a common cache state when booting to different OSes. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>:040000 040000 bf1093b8403580234125df8e97d948c318e8965f 5dce3a5e28ea46706aba44ec62e88584883d0cc4 M lib_ppc
Please suggest how to continue. Shall I revert this commit?
with this patch, this mpc8313 board does this:
U-Boot 2009.06-00524-g28958b8 (Jul 23 2009 - 18:33:11) MPC83XX
Reset Status:
CPU: e300c3, MPC8313E, Rev: 1.0 at 333.333 MHz, CSB: 166.667 MHz Board: Freescale MPC8313ERDB I2C: ready DRAM: 128 MB FLASH: ## Unknown FLASH on Bank 1 - Size = 0x00000000 = 0 MB *** failed *** ### ERROR ### Please RESET the board ###
and when reverted, it boots normally, so the board wants to agree that this patch is reverted.
Kim