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| author | Tom Warren <twarren.nvidia@gmail.com> | 2011-04-14 12:18:06 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-04-27 19:38:09 +0200 |
| commit | 74652cf684fc8678a3c5377b1532394e2025ea49 (patch) | |
| tree | 9697858fc0ec70e1efec3efb26c73126b2acbdce /arch/arm/cpu/armv7/start.S | |
| parent | c2b626c199384e4111fb170062ee9e17c4bc2eaa (diff) | |
| download | u-boot-imx-74652cf684fc8678a3c5377b1532394e2025ea49.zip u-boot-imx-74652cf684fc8678a3c5377b1532394e2025ea49.tar.gz u-boot-imx-74652cf684fc8678a3c5377b1532394e2025ea49.tar.bz2 | |
arm: Tegra2: add support for A9 CPU init
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu/armv7/start.S')
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 6387b8b..2929fc7 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -70,6 +70,18 @@ _end_vect: _TEXT_BASE: .word CONFIG_SYS_TEXT_BASE +#ifdef CONFIG_TEGRA2 +/* + * Tegra2 uses 2 separate CPUs - the AVP (ARM7TDMI) and the CPU (dual A9s). + * U-Boot runs on the AVP first, setting things up for the CPU (PLLs, + * muxes, clocks, clamps, etc.). Then the AVP halts, and expects the CPU + * to pick up its reset vector, which points here. + */ +.globl _armboot_start +_armboot_start: + .word _start +#endif + /* * These are defined in the board-specific linker script. */ |