system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-21 19:47:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: tegra: Always lock the CPU reset vector

Browse source 
Currently the reset vector is not locked on Tegra20 because the hardware
doesn't support it. However in order not to depend on the chip ID, which
becomes available only later in the boot process, we set the bit anyway.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2014-07-11 11:06:20 +02:00
parent 05ccf19602
commit c090e11163
1 changed files with 4 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
arch/arm/mach-tegra/reset.c
View file

@ -54,12 +54,10 @@ static void __init tegra_cpu_reset_handler_set(const u32 reset_address)
* Prevent further modifications to the physical reset vector.
* NOTE: Has no effect on chips prior to Tegra30.
*/
if (tegra_get_chip_id() != TEGRA20) {
reg = readl(sb_ctrl);
reg |= 2;
writel(reg, sb_ctrl);
wmb();
}
reg = readl(sb_ctrl);
reg |= 2;
writel(reg, sb_ctrl);
wmb();
}
static void __init tegra_cpu_reset_handler_enable(void)