3
* Mark Jonas <mark.jonas@de.bosch.com>
6
* Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
8
* board/mpr2/lowlevel_init.S
10
* SPDX-License-Identifier: GPL-2.0+
12
#include <asm/macro.h>
22
* Set frequency multipliers and dividers in FRQCR.
24
write16 WTCSR_A, WTCSR_D
26
write16 WTCNT_A, WTCNT_D
28
write16 FRQCR_A, FRQCR_D
33
write32 CS0BCR_A, CS0BCR_D
35
write32 CS0WCR_A, CS0WCR_D
40
write32 CS3BCR_A, CS3BCR_D
42
write32 CS3WCR_A, CS3WCR_D
44
write32 SDCR_A, SDCR_D1
46
write32 RTCSR_A, RTCSR_D
48
write32 RTCNT_A, RTCNT_D
50
write32 RTCOR_A, RTCOR_D
52
write32 SDCR_A, SDCR_D2
66
* Configuration for MPR2 A.3 through A.7
72
FRQCR_D: .word 0x1103 /* I:B:P=8:4:2 */
73
WTCNT_D: .word 0x5A00 /* start counting at zero */
74
WTCSR_D: .word 0xA507 /* divide by 4096 */
77
* Spansion S29GL256N11 @ 48 MHz
79
/* 1 idle cycle inserted, normal space, 16 bit */
80
CS0BCR_D: .long 0x12490400
81
/* tSW=0.5ck, 6 wait cycles, NO external wait, tHW=0.5ck */
82
CS0WCR_D: .long 0x00000340
85
* Samsung K4S511632B-UL75 @ 48 MHz
86
* Micron MT48LC32M16A2-75 @ 48 MHz
88
/* CS3BCR = 0x10004400, minimum idle cycles, SDRAM, 16 bit */
89
CS3BCR_D: .long 0x10004400
90
/* tRP=1ck, tRCD=1ck, CL=2, tRWL=2ck, tRC=4ck */
91
CS3WCR_D: .long 0x00000091
92
/* no refresh, 13 rows, 10 cols, NO bank active mode */
93
SDCR_D1: .long 0x00000012
94
SDCR_D2: .long 0x00000812 /* refresh */
95
RTCSR_D: .long 0xA55A0008 /* 1/4, once */
96
RTCNT_D: .long 0xA55A005D /* count 93 */
97
RTCOR_D: .long 0xa55a005d /* count 93 */
98
/* mode register CL2, burst read and SINGLE WRITE */
105
FRQCR_A: .long 0xA415FF80
106
WTCNT_A: .long 0xA415FF84
107
WTCSR_A: .long 0xA415FF86
109
#define BSC_BASE 0xA4FD0000
110
CS0BCR_A: .long BSC_BASE + 0x04
111
CS3BCR_A: .long BSC_BASE + 0x0C
112
CS0WCR_A: .long BSC_BASE + 0x24
113
CS3WCR_A: .long BSC_BASE + 0x2C
114
SDCR_A: .long BSC_BASE + 0x44
115
RTCSR_A: .long BSC_BASE + 0x48
116
RTCNT_A: .long BSC_BASE + 0x4C
117
RTCOR_A: .long BSC_BASE + 0x50
118
SDMR3_A: .long BSC_BASE + 0x5000