From: Lukasz Dalek Date: Sat, 12 Jan 2013 22:39:27 +0100 Subject: [U-Boot] [PATCH 3/3] pxa: Save lr register in relocate_code function In-Reply-To: <1358026767-28130-1-git-send-email-luk0104@gmail.com> References: <1358026767-28130-1-git-send-email-luk0104@gmail.com> Message-ID: <1358026767-28130-3-git-send-email-luk0104@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de When u-boot is compiled for PXA25x processor, pxa/start.S is calling cpu_init_crit by BL instruction. BL is overwriting lr register so relocate_code is going into infinite loop. This patch preservs lr register in r12 before calling cpu_init_crit and after function returns restores it. Signed-off-by: Lukasz Dalek --- arch/arm/cpu/pxa/start.S | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S index 72af869..e71803e 100644 --- a/arch/arm/cpu/pxa/start.S +++ b/arch/arm/cpu/pxa/start.S @@ -183,7 +183,9 @@ relocate_code: /* Disable the Dcache RAM lock for stack now */ #ifdef CONFIG_CPU_PXA25X + mov r12, lr bl cpu_init_crit + mov lr, r12 #endif adr r0, _start -- 1.7.8.6