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| author | Anton Arapov <anton@redhat.com> | 2012-06-08 12:58:00 +0200 |
|---|---|---|
| committer | Anton Arapov <anton@redhat.com> | 2012-06-08 12:58:00 +0200 |
| commit | 6792a3f47a2e42d7164292bf7f1a55cfc4c91652 (patch) | |
| tree | b90c002bfbbeaec92f5d8a2383dcabf6524016f7 /arch/arm/plat-mxc/cpu.c | |
| parent | fe2895d3d55146cac65b273c0f83e2c7e543cd0e (diff) | |
| download | kernel-uprobes-6792a3f47a2e42d7164292bf7f1a55cfc4c91652.tar.gz kernel-uprobes-6792a3f47a2e42d7164292bf7f1a55cfc4c91652.tar.xz kernel-uprobes-6792a3f47a2e42d7164292bf7f1a55cfc4c91652.zip | |
fedora kernel: b920e9b748c595f970bf80ede7832d39f8d567dav3.4.1-2
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/plat-mxc/cpu.c')
| -rw-r--r-- | arch/arm/plat-mxc/cpu.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index f5b7e0fa237..220dd6f9312 100644 --- a/arch/arm/plat-mxc/cpu.c +++ b/arch/arm/plat-mxc/cpu.c @@ -1,5 +1,6 @@ #include <linux/module.h> +#include <linux/io.h> #include <mach/hardware.h> unsigned int __mxc_cpu_type; @@ -18,3 +19,26 @@ void imx_print_silicon_rev(const char *cpu, int srev) pr_info("CPU identified as %s, silicon rev %d.%d\n", cpu, (srev >> 4) & 0xf, srev & 0xf); } + +void __init imx_set_aips(void __iomem *base) +{ + unsigned int reg; +/* + * Set all MPROTx to be non-bufferable, trusted for R/W, + * not forced to user-mode. + */ + __raw_writel(0x77777777, base + 0x0); + __raw_writel(0x77777777, base + 0x4); + +/* + * Set all OPACRx to be non-bufferable, to not require + * supervisor privilege level for access, allow for + * write access and untrusted master access. + */ + __raw_writel(0x0, base + 0x40); + __raw_writel(0x0, base + 0x44); + __raw_writel(0x0, base + 0x48); + __raw_writel(0x0, base + 0x4C); + reg = __raw_readl(base + 0x50) & 0x00FFFFFF; + __raw_writel(reg, base + 0x50); +} |