3 * Mark Jonas <mark.jonas@de.bosch.com>
6 * Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
8 * board/mpr2/lowlevel_init.S
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/macro.h>
35 * Set frequency multipliers and dividers in FRQCR.
37 write16 WTCSR_A, WTCSR_D
39 write16 WTCNT_A, WTCNT_D
41 write16 FRQCR_A, FRQCR_D
46 write32 CS0BCR_A, CS0BCR_D
48 write32 CS0WCR_A, CS0WCR_D
53 write32 CS3BCR_A, CS3BCR_D
55 write32 CS3WCR_A, CS3WCR_D
57 write32 SDCR_A, SDCR_D1
59 write32 RTCSR_A, RTCSR_D
61 write32 RTCNT_A, RTCNT_D
63 write32 RTCOR_A, RTCOR_D
65 write32 SDCR_A, SDCR_D2
79 * Configuration for MPR2 A.3 through A.7
85 FRQCR_D: .word 0x1103 /* I:B:P=8:4:2 */
86 WTCNT_D: .word 0x5A00 /* start counting at zero */
87 WTCSR_D: .word 0xA507 /* divide by 4096 */
90 * Spansion S29GL256N11 @ 48 MHz
92 /* 1 idle cycle inserted, normal space, 16 bit */
93 CS0BCR_D: .long 0x12490400
94 /* tSW=0.5ck, 6 wait cycles, NO external wait, tHW=0.5ck */
95 CS0WCR_D: .long 0x00000340
98 * Samsung K4S511632B-UL75 @ 48 MHz
99 * Micron MT48LC32M16A2-75 @ 48 MHz
101 /* CS3BCR = 0x10004400, minimum idle cycles, SDRAM, 16 bit */
102 CS3BCR_D: .long 0x10004400
103 /* tRP=1ck, tRCD=1ck, CL=2, tRWL=2ck, tRC=4ck */
104 CS3WCR_D: .long 0x00000091
105 /* no refresh, 13 rows, 10 cols, NO bank active mode */
106 SDCR_D1: .long 0x00000012
107 SDCR_D2: .long 0x00000812 /* refresh */
108 RTCSR_D: .long 0xA55A0008 /* 1/4, once */
109 RTCNT_D: .long 0xA55A005D /* count 93 */
110 RTCOR_D: .long 0xa55a005d /* count 93 */
111 /* mode register CL2, burst read and SINGLE WRITE */
118 FRQCR_A: .long 0xA415FF80
119 WTCNT_A: .long 0xA415FF84
120 WTCSR_A: .long 0xA415FF86
122 #define BSC_BASE 0xA4FD0000
123 CS0BCR_A: .long BSC_BASE + 0x04
124 CS3BCR_A: .long BSC_BASE + 0x0C
125 CS0WCR_A: .long BSC_BASE + 0x24
126 CS3WCR_A: .long BSC_BASE + 0x2C
127 SDCR_A: .long BSC_BASE + 0x44
128 RTCSR_A: .long BSC_BASE + 0x48
129 RTCNT_A: .long BSC_BASE + 0x4C
130 RTCOR_A: .long BSC_BASE + 0x50
131 SDMR3_A: .long BSC_BASE + 0x5000