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mx31: add ESD control registers 

This allows to initialize DDR memory in C code.
Currently all mx31 boards use assembler code (lowlevel_init.S)

Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Helmut Raiger 2011-10-27 01:31:14 +00:00 committed by Albert ARIBAUD
parent d121d20195
commit a6d9de436c
1 changed files with 13 additions and 0 deletions
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13
arch/arm/include/asm/arch-mx31/imx-regs.h
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@ -522,6 +522,17 @@ struct mx31_weim {
struct mx31_weim_cscr cscr[6];
};
/* ESD control registers */
struct esdc_regs {
u32 ctl0;
u32 cfg0;
u32 ctl1;
u32 cfg1;
u32 misc;
u32 dly[5];
u32 dlyl;
};
#endif
#define __REG(x) (*((volatile u32 *)(x)))
@ -600,6 +611,8 @@ struct mx31_weim {
#define ESDCTL_BL(x) ((x) << 7)
#define ESDCTL_PRCT(x) ((x) << 0)
#define ESDCTL_BASE_ADDR 0xB8001000
/* 13 fields of the upper CS control register */
#define CSCR_U(sp, wp, bcd, bcs, psz, pme, sync, dol, \
cnc, wsc, ew, wws, edc) \