From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Mon, 13 Aug 2012 09:48:02 +0200 Subject: [U-Boot] [PATCH 0/2]: arm: Provide lowlevel_init C function wrapper for v7 In-Reply-To: <1344528116-13967-1-git-send-email-trini@ti.com> References: <1344528116-13967-1-git-send-email-trini@ti.com> Message-ID: <5028B132.5010003@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 09/08/2012 18:01, Tom Rini wrote: > Hey all, > Hi Tom, > As Allen Martin noted, on tegra platforms a bug is exposed when using > certain toolchains that currently calls to lowlevel_init must be calls > to another assembly function as the stack is not explicitly setup / > saved and thus register corruption can occur. Over in TI-land Aneesh V > wrote a lowlevel_init that sets up the stack and calls s_init which is a > C function that does what lowlevel_init does on other platforms. The > code is generic to at least v7, so this series moves it to > arch/arm/cpu/armv7. Then as far as I can see in your patch, other armv7 can profit as well, such as the i.MX5 and i.MX6 ;-) The only issue is to generalize the entry point for the function to setup PLL and or pinmux. It should be enough to change lowlevel_init to s_init in i.MX to do the job. Best regards, Stefano -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================