arch/arm/mach-omap2/iomap.h
Source file repositories/reference/linux-study-clean/arch/arm/mach-omap2/iomap.h
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/mach-omap2/iomap.h- Extension
.h- Size
- 10273 bytes
- Lines
- 260
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#define OMAP2_L3_IO_OFFSET 0x90000000
#define OMAP2_L3_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_L3_IO_OFFSET) /* L3 */
#define OMAP2_L4_IO_OFFSET 0xb2000000
#define OMAP2_L4_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_L4_IO_OFFSET) /* L4 */
#define OMAP4_L3_IO_OFFSET 0xb4000000
#define OMAP4_L3_IO_ADDRESS(pa) IOMEM((pa) + OMAP4_L3_IO_OFFSET) /* L3 */
#define AM33XX_L4_WK_IO_OFFSET 0xb5000000
#define AM33XX_L4_WK_IO_ADDRESS(pa) IOMEM((pa) + AM33XX_L4_WK_IO_OFFSET)
#define OMAP4_L3_PER_IO_OFFSET 0xb1100000
#define OMAP4_L3_PER_IO_ADDRESS(pa) IOMEM((pa) + OMAP4_L3_PER_IO_OFFSET)
#define OMAP2_EMU_IO_OFFSET 0xaa800000 /* Emulation */
#define OMAP2_EMU_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_EMU_IO_OFFSET)
/*
* ----------------------------------------------------------------------------
* Omap2 specific IO mapping
* ----------------------------------------------------------------------------
*/
/* We map both L3 and L4 on OMAP2 */
#define L3_24XX_PHYS L3_24XX_BASE /* 0x68000000 --> 0xf8000000*/
#define L3_24XX_VIRT (L3_24XX_PHYS + OMAP2_L3_IO_OFFSET)
#define L3_24XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */
#define L4_24XX_PHYS L4_24XX_BASE /* 0x48000000 --> 0xfa000000 */
#define L4_24XX_VIRT (L4_24XX_PHYS + OMAP2_L4_IO_OFFSET)
#define L4_24XX_SIZE SZ_1M /* 1MB of 128MB used, want 1MB sect */
#define L4_WK_243X_PHYS L4_WK_243X_BASE /* 0x49000000 --> 0xfb000000 */
#define L4_WK_243X_VIRT (L4_WK_243X_PHYS + OMAP2_L4_IO_OFFSET)
#define L4_WK_243X_SIZE SZ_1M
#define OMAP243X_GPMC_PHYS OMAP243X_GPMC_BASE
#define OMAP243X_GPMC_VIRT (OMAP243X_GPMC_PHYS + OMAP2_L3_IO_OFFSET)
/* 0x6e000000 --> 0xfe000000 */
#define OMAP243X_GPMC_SIZE SZ_1M
#define OMAP243X_SDRC_PHYS OMAP243X_SDRC_BASE
/* 0x6D000000 --> 0xfd000000 */
#define OMAP243X_SDRC_VIRT (OMAP243X_SDRC_PHYS + OMAP2_L3_IO_OFFSET)
#define OMAP243X_SDRC_SIZE SZ_1M
#define OMAP243X_SMS_PHYS OMAP243X_SMS_BASE
/* 0x6c000000 --> 0xfc000000 */
#define OMAP243X_SMS_VIRT (OMAP243X_SMS_PHYS + OMAP2_L3_IO_OFFSET)
#define OMAP243X_SMS_SIZE SZ_1M
/* 2420 IVA */
#define DSP_MEM_2420_PHYS OMAP2420_DSP_MEM_BASE
/* 0x58000000 --> 0xfc100000 */
#define DSP_MEM_2420_VIRT 0xfc100000
#define DSP_MEM_2420_SIZE 0x28000
#define DSP_IPI_2420_PHYS OMAP2420_DSP_IPI_BASE
/* 0x59000000 --> 0xfc128000 */
#define DSP_IPI_2420_VIRT 0xfc128000
#define DSP_IPI_2420_SIZE SZ_4K
#define DSP_MMU_2420_PHYS OMAP2420_DSP_MMU_BASE
/* 0x5a000000 --> 0xfc129000 */
#define DSP_MMU_2420_VIRT 0xfc129000
#define DSP_MMU_2420_SIZE SZ_4K
/* 2430 IVA2.1 - currently unmapped */
/*
* ----------------------------------------------------------------------------
* Omap3 specific IO mapping
* ----------------------------------------------------------------------------
*/
/* We map both L3 and L4 on OMAP3 */
#define L3_34XX_PHYS L3_34XX_BASE /* 0x68000000 --> 0xf8000000 */
#define L3_34XX_VIRT (L3_34XX_PHYS + OMAP2_L3_IO_OFFSET)
#define L3_34XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */
#define L4_34XX_PHYS L4_34XX_BASE /* 0x48000000 --> 0xfa000000 */
#define L4_34XX_VIRT (L4_34XX_PHYS + OMAP2_L4_IO_OFFSET)
#define L4_34XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect */
/*
* ----------------------------------------------------------------------------
* AM33XX specific IO mapping
* ----------------------------------------------------------------------------
*/
#define L4_WK_AM33XX_PHYS L4_WK_AM33XX_BASE
#define L4_WK_AM33XX_VIRT (L4_WK_AM33XX_PHYS + AM33XX_L4_WK_IO_OFFSET)
#define L4_WK_AM33XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect */
/*
* Need to look at the Size 4M for L4.
Annotation
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.