arch/powerpc/include/asm/mpc52xx_psc.h
Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/mpc52xx_psc.h
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/include/asm/mpc52xx_psc.h- Extension
.h- Size
- 10125 bytes
- Lines
- 353
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
asm/types.h
Detected Declarations
struct mpc52xx_pscstruct mpc52xx_psc_fifostruct mpc512x_psc_fifostruct mpc5125_psc
Annotated Snippet
struct mpc52xx_psc {
union {
u8 mode; /* PSC + 0x00 */
u8 mr2;
};
u8 reserved0[3];
union { /* PSC + 0x04 */
u16 status;
u16 clock_select;
} sr_csr;
#define mpc52xx_psc_status sr_csr.status
#define mpc52xx_psc_clock_select sr_csr.clock_select
u16 reserved1;
u8 command; /* PSC + 0x08 */
u8 reserved2[3];
union { /* PSC + 0x0c */
u8 buffer_8;
u16 buffer_16;
u32 buffer_32;
} buffer;
#define mpc52xx_psc_buffer_8 buffer.buffer_8
#define mpc52xx_psc_buffer_16 buffer.buffer_16
#define mpc52xx_psc_buffer_32 buffer.buffer_32
union { /* PSC + 0x10 */
u8 ipcr;
u8 acr;
} ipcr_acr;
#define mpc52xx_psc_ipcr ipcr_acr.ipcr
#define mpc52xx_psc_acr ipcr_acr.acr
u8 reserved3[3];
union { /* PSC + 0x14 */
u16 isr;
u16 imr;
} isr_imr;
#define mpc52xx_psc_isr isr_imr.isr
#define mpc52xx_psc_imr isr_imr.imr
u16 reserved4;
u8 ctur; /* PSC + 0x18 */
u8 reserved5[3];
u8 ctlr; /* PSC + 0x1c */
u8 reserved6[3];
/* BitClkDiv field of CCR is byte swapped in
* the hardware for mpc5200/b compatibility */
u32 ccr; /* PSC + 0x20 */
u32 ac97_slots; /* PSC + 0x24 */
u32 ac97_cmd; /* PSC + 0x28 */
u32 ac97_data; /* PSC + 0x2c */
u8 ivr; /* PSC + 0x30 */
u8 reserved8[3];
u8 ip; /* PSC + 0x34 */
u8 reserved9[3];
u8 op1; /* PSC + 0x38 */
u8 reserved10[3];
u8 op0; /* PSC + 0x3c */
u8 reserved11[3];
u32 sicr; /* PSC + 0x40 */
u8 ircr1; /* PSC + 0x44 */
u8 reserved13[3];
u8 ircr2; /* PSC + 0x44 */
u8 reserved14[3];
u8 irsdr; /* PSC + 0x4c */
u8 reserved15[3];
u8 irmdr; /* PSC + 0x50 */
u8 reserved16[3];
u8 irfdr; /* PSC + 0x54 */
u8 reserved17[3];
};
struct mpc52xx_psc_fifo {
u16 rfnum; /* PSC + 0x58 */
u16 reserved18;
u16 tfnum; /* PSC + 0x5c */
u16 reserved19;
u32 rfdata; /* PSC + 0x60 */
u16 rfstat; /* PSC + 0x64 */
u16 reserved20;
u8 rfcntl; /* PSC + 0x68 */
u8 reserved21[5];
u16 rfalarm; /* PSC + 0x6e */
u16 reserved22;
u16 rfrptr; /* PSC + 0x72 */
u16 reserved23;
u16 rfwptr; /* PSC + 0x76 */
u16 reserved24;
u16 rflrfptr; /* PSC + 0x7a */
u16 reserved25;
u16 rflwfptr; /* PSC + 0x7e */
u32 tfdata; /* PSC + 0x80 */
u16 tfstat; /* PSC + 0x84 */
u16 reserved26;
Annotation
- Immediate include surface: `asm/types.h`.
- Detected declarations: `struct mpc52xx_psc`, `struct mpc52xx_psc_fifo`, `struct mpc512x_psc_fifo`, `struct mpc5125_psc`.
- Atlas domain: Architecture Layer / arch/powerpc.
- 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.