On Tue, Dec 25, 2012 at 5:18 PM, Tetsuyuki Kobayashi <[email protected]> wrote: > Hello, Joel > > > (2012/12/22 0:17), Joel A Fernandes wrote: >> >> Hi Tesuyuki and friends, >> >> I had a question with this patch. >> >> On Wed, Jun 27, 2012 at 8:27 PM, Tetsuyuki Kobayashi <[email protected]> >> wrote: >>>>> >>>>> This patch moves vector table before jumping relocated code. >>>>> >>>>> Signed-off-by: Tetsuyuki Kobayashi<[email protected]> >>>>> --- >>>>> arch/arm/cpu/armv7/start.S | 12 ++++++++++++ >>>>> 1 file changed, 12 insertions(+) >>>>> >>>>> diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S >>>>> index 52f7f6e..5098f7b 100644 >>>>> --- a/arch/arm/cpu/armv7/start.S >>>>> +++ b/arch/arm/cpu/armv7/start.S >>>>> @@ -277,6 +277,18 @@ jump_2_ram: >>>>> mcr p15, 0, r0, c7, c10, 4 @ DSB >>>>> mcr p15, 0, r0, c7, c5, 4 @ ISB >>>>> #endif >>>>> +/* >>>>> + * Move vector table >>>>> + */ >>>>> +#if !defined(CONFIG_TEGRA2) >>>>> +#if !(defined(CONFIG_OMAP44XX)&& defined(CONFIG_SPL_BUILD)) >>>>> >>>>> + /* Set vector address in CP15 VBAR register */ >>>>> + ldr r0, =_start >>>>> + add r0, r0, r9 >>>>> + mcr p15, 0, r0, c12, c0, 0 @Set VBAR >>>>> +#endif >> >> >> Why is c12 (VBAR) setup only for SPL builds? Because main u-boot does >> relocation too, shouldn't we setup c12 to point to new table addr >> after relocation? > > > You may mis-understand. ! means NOT.
Yes! Thanks for pointing it out. Regards, Joel _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
