arch/arm/mach-omap2/opp2xxx.h

Source file repositories/reference/linux-study-clean/arch/arm/mach-omap2/opp2xxx.h

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-omap2/opp2xxx.h
Extension
.h
Size
15630 bytes
Lines
431
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

struct prcm_config {
	unsigned long xtal_speed;	/* crystal rate */
	unsigned long dpll_speed;	/* dpll: out*xtal*M/(N-1)table_recalc */
	unsigned long mpu_speed;	/* speed of MPU */
	unsigned long cm_clksel_mpu;	/* mpu divider */
	unsigned long cm_clksel_dsp;	/* dsp+iva1 div(2420), iva2.1(2430) */
	unsigned long cm_clksel_gfx;	/* gfx dividers */
	unsigned long cm_clksel1_core;	/* major subsystem dividers */
	unsigned long cm_clksel1_pll;	/* m,n */
	unsigned long cm_clksel2_pll;	/* dpllx1 or x2 out */
	unsigned long cm_clksel_mdm;	/* modem dividers 2430 only */
	unsigned long base_sdrc_rfr;	/* base refresh timing for a set */
	unsigned short flags;
};


/* Core fields for cm_clksel, not ratio governed */
#define RX_CLKSEL_DSS1			(0x10 << 8)
#define RX_CLKSEL_DSS2			(0x0 << 13)
#define RX_CLKSEL_SSI			(0x5 << 20)

/*-------------------------------------------------------------------------
 * Voltage/DPLL ratios
 *-------------------------------------------------------------------------*/

/* 2430 Ratio's, 2430-Ratio Config 1 */
#define R1_CLKSEL_L3			(4 << 0)
#define R1_CLKSEL_L4			(2 << 5)
#define R1_CLKSEL_USB			(4 << 25)
#define R1_CM_CLKSEL1_CORE_VAL		(R1_CLKSEL_USB | RX_CLKSEL_SSI | \
					 RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \
					 R1_CLKSEL_L4 | R1_CLKSEL_L3)
#define R1_CLKSEL_MPU			(2 << 0)
#define R1_CM_CLKSEL_MPU_VAL		R1_CLKSEL_MPU
#define R1_CLKSEL_DSP			(2 << 0)
#define R1_CLKSEL_DSP_IF		(2 << 5)
#define R1_CM_CLKSEL_DSP_VAL		(R1_CLKSEL_DSP | R1_CLKSEL_DSP_IF)
#define R1_CLKSEL_GFX			(2 << 0)
#define R1_CM_CLKSEL_GFX_VAL		R1_CLKSEL_GFX
#define R1_CLKSEL_MDM			(4 << 0)
#define R1_CM_CLKSEL_MDM_VAL		R1_CLKSEL_MDM

/* 2430-Ratio Config 2 */
#define R2_CLKSEL_L3			(6 << 0)
#define R2_CLKSEL_L4			(2 << 5)
#define R2_CLKSEL_USB			(2 << 25)
#define R2_CM_CLKSEL1_CORE_VAL		(R2_CLKSEL_USB | RX_CLKSEL_SSI | \
					 RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \
					 R2_CLKSEL_L4 | R2_CLKSEL_L3)
#define R2_CLKSEL_MPU			(2 << 0)
#define R2_CM_CLKSEL_MPU_VAL		R2_CLKSEL_MPU
#define R2_CLKSEL_DSP			(2 << 0)
#define R2_CLKSEL_DSP_IF		(3 << 5)
#define R2_CM_CLKSEL_DSP_VAL		(R2_CLKSEL_DSP | R2_CLKSEL_DSP_IF)
#define R2_CLKSEL_GFX			(2 << 0)
#define R2_CM_CLKSEL_GFX_VAL		R2_CLKSEL_GFX
#define R2_CLKSEL_MDM			(6 << 0)
#define R2_CM_CLKSEL_MDM_VAL		R2_CLKSEL_MDM

/* 2430-Ratio Bootm (BYPASS) */
#define RB_CLKSEL_L3			(1 << 0)
#define RB_CLKSEL_L4			(1 << 5)
#define RB_CLKSEL_USB			(1 << 25)
#define RB_CM_CLKSEL1_CORE_VAL		(RB_CLKSEL_USB | RX_CLKSEL_SSI | \
					 RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \
					 RB_CLKSEL_L4 | RB_CLKSEL_L3)
#define RB_CLKSEL_MPU			(1 << 0)
#define RB_CM_CLKSEL_MPU_VAL		RB_CLKSEL_MPU
#define RB_CLKSEL_DSP			(1 << 0)
#define RB_CLKSEL_DSP_IF		(1 << 5)
#define RB_CM_CLKSEL_DSP_VAL		(RB_CLKSEL_DSP | RB_CLKSEL_DSP_IF)
#define RB_CLKSEL_GFX			(1 << 0)
#define RB_CM_CLKSEL_GFX_VAL		RB_CLKSEL_GFX
#define RB_CLKSEL_MDM			(1 << 0)
#define RB_CM_CLKSEL_MDM_VAL		RB_CLKSEL_MDM

/* 2420 Ratio Equivalents */
#define RXX_CLKSEL_VLYNQ		(0x12 << 15)
#define RXX_CLKSEL_SSI			(0x8 << 20)

/* 2420-PRCM III 532MHz core */
#define RIII_CLKSEL_L3			(4 << 0)	/* 133MHz */
#define RIII_CLKSEL_L4			(2 << 5)	/* 66.5MHz */
#define RIII_CLKSEL_USB			(4 << 25)	/* 33.25MHz */
#define RIII_CM_CLKSEL1_CORE_VAL	(RIII_CLKSEL_USB | RXX_CLKSEL_SSI | \
					 RXX_CLKSEL_VLYNQ | RX_CLKSEL_DSS2 | \
					 RX_CLKSEL_DSS1 | RIII_CLKSEL_L4 | \
					 RIII_CLKSEL_L3)
#define RIII_CLKSEL_MPU			(2 << 0)	/* 266MHz */
#define RIII_CM_CLKSEL_MPU_VAL		RIII_CLKSEL_MPU

Annotation

Implementation Notes