arch/arm/mach-imx/anatop.c

Source file repositories/reference/linux-study-clean/arch/arm/mach-imx/anatop.c

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-imx/anatop.c
Extension
.c
Size
4348 bytes
Lines
164
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

if ((digprog >> 16) == MXC_CPU_IMX6ULL) {
			void __iomem *src_base;
			u32 sbmr2;

			src_np = of_find_compatible_node(NULL, NULL,
						     "fsl,imx6ul-src");
			src_base = of_iomap(src_np, 0);
			of_node_put(src_np);
			WARN_ON(!src_base);
			sbmr2 = readl_relaxed(src_base + SRC_SBMR2);
			iounmap(src_base);

			/* src_sbmr2 bit 6 is to identify if it is i.MX6ULZ */
			if (sbmr2 & (1 << 6)) {
				digprog &= ~(0xff << 16);
				digprog |= (MXC_CPU_IMX6ULZ << 16);
			}
		}
	}
	of_node_put(np);

	mxc_set_cpu_type(digprog >> 16 & 0xff);
	imx_set_soc_revision(revision);
}

void __init imx_anatop_init(void)
{
	anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop");
	if (IS_ERR(anatop))
		pr_err("%s: failed to find imx6q-anatop regmap!\n", __func__);
}

Annotation

Implementation Notes