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| author | Tom Warren <twarren.nvidia@gmail.com> | 2012-02-17 06:01:21 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-03-29 08:12:47 +0200 |
| commit | d8bd820935bb9b8bf2717a259eeab4376e9ccc9a (patch) | |
| tree | 6c3cdf4bd4a1aeb506195a92969fe8e84c8a910a | |
| parent | 5c1ad3e6f8ae578bbe30e09652f1531e9bc22031 (diff) | |
| download | olio-uboot-2014.01-d8bd820935bb9b8bf2717a259eeab4376e9ccc9a.tar.xz olio-uboot-2014.01-d8bd820935bb9b8bf2717a259eeab4376e9ccc9a.zip | |
arm: Tegra2: Fix ELDK42 gcc failure with inline asm stack pointer load
The 4.2.2 gcc in the ELDK42 release doesn't like the direct SP
load using a constant in tegra2_start. Change it to use a load
thru another reg using mov sp, %0 : : "r"(CONST).
Tested on my Seaboard T20-A03, U-Boot loads and runs OK. Also
compiled all tegra2 builds with both gcc 4.2.2 and 4.4.1 OK.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/ap20.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/ap20.c b/arch/arm/cpu/armv7/tegra2/ap20.c index 4c44bb363..f0450f4c0 100644 --- a/arch/arm/cpu/armv7/tegra2/ap20.c +++ b/arch/arm/cpu/armv7/tegra2/ap20.c @@ -298,11 +298,11 @@ void tegra2_start(void) writel(0xC0, &pmt->pmt_cfg_ctl); /* - * If we are ARM7 - give it a different stack. We are about to - * start up the A9 which will want to use this one. - */ - asm volatile("ldr sp, =%c0\n" - : : "i"(AVP_EARLY_BOOT_STACK_LIMIT)); + * If we are ARM7 - give it a different stack. We are about to + * start up the A9 which will want to use this one. + */ + asm volatile("mov sp, %0\n" + : : "r"(AVP_EARLY_BOOT_STACK_LIMIT)); start_cpu((u32)_start); halt_avp(); |