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am33xx: Use emif_regs struct for storing initialization values

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Rather than defining our own structs to note what to use when
programming the EMIF and related re-use the emif_regs struct.

Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Tom Rini
2012-07-24 14:55:38 -07:00
committed by Albert ARIBAUD
parent 87a1acbb69
commit ff7ec0f945
3 changed files with 31 additions and 78 deletions
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38
arch/arm/include/asm/arch-am33xx/ddr_defs.h
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@@ -20,6 +20,7 @@
#define _DDR_DEFS_H
#include <asm/arch/hardware.h>
#include <asm/emif.h>
/* AM335X EMIF Register values */
#define VTP_CTRL_READY (0x1 << 5)
@@ -48,51 +49,20 @@
#define DDR2_PHY_RANK0_DELAY 0x1
#define DDR2_IOCTRL_VALUE 0x18B
/**
* Encapsulates DDR PHY control and corresponding shadow registers.
*/
struct ddr_phy_control {
unsigned long reg;
unsigned long reg_sh;
unsigned long reg2;
};
/**
* Encapsulates SDRAM timing and corresponding shadow registers.
*/
struct sdram_timing {
unsigned long time1;
unsigned long time1_sh;
unsigned long time2;
unsigned long time2_sh;
unsigned long time3;
unsigned long time3_sh;
};
/**
* Encapsulates SDRAM configuration.
* (Includes refresh control registers) */
struct sdram_config {
unsigned long sdrcr;
unsigned long sdrcr2;
unsigned long refresh;
unsigned long refresh_sh;
};
/**
* Configure SDRAM
*/
void config_sdram(struct sdram_config *cfg);
void config_sdram(const struct emif_regs *regs);
/**
* Set SDRAM timings
*/
void set_sdram_timings(struct sdram_timing *val);
void set_sdram_timings(const struct emif_regs *regs);
/**
* Configure DDR PHY
*/
void config_ddr_phy(struct ddr_phy_control *cfg);
void config_ddr_phy(const struct emif_regs *regs);
/**
* This structure represents the DDR registers on AM33XX devices.