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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-12 14:51:39 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-12 14:51:39 -0500
commitd01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (patch)
tree02ef82b2740cf93a98199eded5ef765fa6e03052 /arch/arm/mach-imx/cpu.c
parent8287361abca36504da813638310d2547469283eb (diff)
parent794b175fc0c0c4844dbb7b137a73bbfd01f6c608 (diff)
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups on various subarchitectures from Olof Johansson: "Cleanup patches for various ARM platforms and some of their associated drivers. There's also a branch in here that enables Freescale i.MX to be part of the multiplatform support -- the first "big" SoC that is moved over (more multiplatform work comes in a separate branch later during the merge window)." Conflicts fixed as per Olof, including a silent semantic one in arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to omap3xxx_restart(), and a new user of the old name was added). * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits) ARM: omap: fix typo on timer cleanup ARM: EXYNOS: Remove unused regs-mem.h file ARM: EXYNOS: Remove unused non-dt support for dwmci controller ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan ARM: OMAP3: cm-t3517: use GPTIMER for system clock ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER ARM: SAMSUNG: use devm_ functions for ADC driver ARM: EXYNOS: no duplicate mask/unmask in eint0_15 ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443 ARM: EXYNOS: Remove i2c0 resource information and setting of device names ARM: Kirkwood: checkpatch cleanups ARM: Kirkwood: Fix sparse warnings. ARM: Kirkwood: Remove unused includes ARM: kirkwood: cleanup lsxl board includes ARM: integrator: use BUG_ON where possible ARM: integrator: push down SC dependencies ARM: integrator: delete static UART1 mapping ARM: integrator: delete SC mapping on the CP ARM: integrator: remove static CP syscon mapping ARM: integrator: remove static AP syscon mapping ...
Diffstat (limited to 'arch/arm/mach-imx/cpu.c')
-rw-r--r--arch/arm/mach-imx/cpu.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
new file mode 100644
index 000000000000..03fcbd082593
--- /dev/null
+++ b/arch/arm/mach-imx/cpu.c
@@ -0,0 +1,45 @@
1
2#include <linux/module.h>
3#include <linux/io.h>
4
5#include "hardware.h"
6
7unsigned int __mxc_cpu_type;
8EXPORT_SYMBOL(__mxc_cpu_type);
9
10void mxc_set_cpu_type(unsigned int type)
11{
12 __mxc_cpu_type = type;
13}
14
15void imx_print_silicon_rev(const char *cpu, int srev)
16{
17 if (srev == IMX_CHIP_REVISION_UNKNOWN)
18 pr_info("CPU identified as %s, unknown revision\n", cpu);
19 else
20 pr_info("CPU identified as %s, silicon rev %d.%d\n",
21 cpu, (srev >> 4) & 0xf, srev & 0xf);
22}
23
24void __init imx_set_aips(void __iomem *base)
25{
26 unsigned int reg;
27/*
28 * Set all MPROTx to be non-bufferable, trusted for R/W,
29 * not forced to user-mode.
30 */
31 __raw_writel(0x77777777, base + 0x0);
32 __raw_writel(0x77777777, base + 0x4);
33
34/*
35 * Set all OPACRx to be non-bufferable, to not require
36 * supervisor privilege level for access, allow for
37 * write access and untrusted master access.
38 */
39 __raw_writel(0x0, base + 0x40);
40 __raw_writel(0x0, base + 0x44);
41 __raw_writel(0x0, base + 0x48);
42 __raw_writel(0x0, base + 0x4C);
43 reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
44 __raw_writel(reg, base + 0x50);
45}