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Davinci: Add EMIF-A macros for setting chip select parameters

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The patch adds EMIF-A macros for setting chip select parameters

Signed-off-by: Nick Thompson <nick.thompson@ge.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Nick Thompson 2010-02-08 11:34:58 -05:00 • committed by Tom Rix
parent b74064a0e2
commit 6228e6389e
1 changed files with 17 additions and 1 deletions
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18
include/asm-arm/arch-davinci/emif_defs.h
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@ -24,7 +24,7 @@
#include <asm/arch/hardware.h> #include <asm/arch/hardware.h>
typedef struct { typedef struct davinci_emif_regs {
dv_reg ERCSR; dv_reg ERCSR;
dv_reg AWCCR; dv_reg AWCCR;
dv_reg SDBCR; dv_reg SDBCR;
@ -66,6 +66,9 @@ typedef struct {
typedef emif_registers *emifregs; typedef emif_registers *emifregs;
#define davinci_emif_regs \
((struct davinci_emif_regs *)DAVINCI_ASYNC_EMIF_CNTRL_BASE)
#define DAVINCI_NANDFCR_NAND_ENABLE(n) (1 << (n-2)) #define DAVINCI_NANDFCR_NAND_ENABLE(n) (1 << (n-2))
#define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK (3 << 4) #define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK (3 << 4)
#define DAVINCI_NANDFCR_4BIT_ECC_SEL(n) ((n-2) << 4) #define DAVINCI_NANDFCR_4BIT_ECC_SEL(n) ((n-2) << 4)
@ -73,4 +76,17 @@ typedef emif_registers *emifregs;
#define DAVINCI_NANDFCR_4BIT_ECC_START (1 << 12) #define DAVINCI_NANDFCR_4BIT_ECC_START (1 << 12)
#define DAVINCI_NANDFCR_4BIT_CALC_START (1 << 13) #define DAVINCI_NANDFCR_4BIT_CALC_START (1 << 13)
/* Chip Select setup */
#define DAVINCI_ABCR_STROBE_SELECT (1 << 31)
#define DAVINCI_ABCR_EXT_WAIT (1 << 30)
#define DAVINCI_ABCR_WSETUP(n) (n << 26)
#define DAVINCI_ABCR_WSTROBE(n) (n << 20)
#define DAVINCI_ABCR_WHOLD(n) (n << 17)
#define DAVINCI_ABCR_RSETUP(n) (n << 13)
#define DAVINCI_ABCR_RSTROBE(n) (n << 7)
#define DAVINCI_ABCR_RHOLD(n) (n << 4)
#define DAVINCI_ABCR_TA(n) (n << 2)
#define DAVINCI_ABCR_ASIZE_16BIT 1
#define DAVINCI_ABCR_ASIZE_8BIT 0
#endif #endif