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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 14:51:39 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 14:51:39 -0500 |
commit | d01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (patch) | |
tree | 02ef82b2740cf93a98199eded5ef765fa6e03052 /arch/arm/mach-imx/cpu.c | |
parent | 8287361abca36504da813638310d2547469283eb (diff) | |
parent | 794b175fc0c0c4844dbb7b137a73bbfd01f6c608 (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.c | 45 |
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 | |||
7 | unsigned int __mxc_cpu_type; | ||
8 | EXPORT_SYMBOL(__mxc_cpu_type); | ||
9 | |||
10 | void mxc_set_cpu_type(unsigned int type) | ||
11 | { | ||
12 | __mxc_cpu_type = type; | ||
13 | } | ||
14 | |||
15 | void 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 | |||
24 | void __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 | } | ||