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mpc8xxx: DDR2/DDR3: Clean up DIMM-type switch statements

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The numeric constants in the switch statements are replaced by #defines
added to the common ddr_spd.h header.  This dramatically improves the
readability of the switch statments.

In addition, a few of the longer lines were cleaned up, and the DDR2
type for an SO-RDIMM module was added to the DDR2 switch statement.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Kim Phillips <kim.phillips@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kyle Moffett 2011-03-28 11:35:48 -04:00 • committed by Kumar Gala
parent e820a131f4
commit c7fd27ccfb
4 changed files with 53 additions and 43 deletions
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28
include/ddr_spd.h
View file

@ -304,14 +304,24 @@ extern unsigned int ddr3_spd_check(const ddr3_spd_eeprom_t *spd);
#define SPD_MEMTYPE_DDR2_FBDIMM_PROBE (0x0A)
#define SPD_MEMTYPE_DDR3 (0x0B)
/*
* Byte 3 Key Byte / Module Type for DDR3 SPD
*/
#define SPD_MODULETYPE_RDIMM (0x01)
#define SPD_MODULETYPE_UDIMM (0x02)
#define SPD_MODULETYPE_SODIMM (0x03)
#define SPD_MODULETYPE_MICRODIMM (0x04)
#define SPD_MODULETYPE_MINIRDIMM (0x05)
#define SPD_MODULETYPE_MINIUDIMM (0x06)
/* DIMM Type for DDR2 SPD (according to v1.3) */
#define DDR2_SPD_DIMMTYPE_UNDEFINED (0x00)
#define DDR2_SPD_DIMMTYPE_RDIMM (0x01)
#define DDR2_SPD_DIMMTYPE_UDIMM (0x02)
#define DDR2_SPD_DIMMTYPE_SO_DIMM (0x04)
#define DDR2_SPD_DIMMTYPE_72B_SO_CDIMM (0x06)
#define DDR2_SPD_DIMMTYPE_72B_SO_RDIMM (0x07)
#define DDR2_SPD_DIMMTYPE_MICRO_DIMM (0x08)
#define DDR2_SPD_DIMMTYPE_MINI_RDIMM (0x10)
#define DDR2_SPD_DIMMTYPE_MINI_UDIMM (0x20)
/* Byte 3 Key Byte / Module Type for DDR3 SPD */
#define DDR3_SPD_MODULETYPE_MASK (0x0f)
#define DDR3_SPD_MODULETYPE_RDIMM (0x01)
#define DDR3_SPD_MODULETYPE_UDIMM (0x02)
#define DDR3_SPD_MODULETYPE_SO_DIMM (0x03)
#define DDR3_SPD_MODULETYPE_MICRO_DIMM (0x04)
#define DDR3_SPD_MODULETYPE_MINI_RDIMM (0x05)
#define DDR3_SPD_MODULETYPE_MINI_UDIMM (0x06)
#endif /* _DDR_SPD_H_ */