1 # SPDX-License-Identifier: GPL-2.0-or-later
3 # Thanks to Pieter Conradie for this script!
4 # Target: Toshiba TOPAS900 -- TMPA900 Starterkit
5 ######################################
7 # We add to the minimal configuration.
8 source [find target/tmpa900.cfg]
10 ######################
11 # Target configuration
12 ######################
14 #$_TARGETNAME configure -event gdb-attach { reset init }
15 $_TARGETNAME configure -event reset-init { topasa900_init }
17 proc topasa900_init { } {
20 mww 0xf005000c 0x00000007
21 mww 0xf0050010 0x00000065
22 mww 0xf005000c 0x000000a7
25 mww 0xf0050008 0x00000002
26 mww 0xf0050004 0x00000000
28 mww 0xf0050054 0x00000040
31 # mww 0xf0050004 0x00000000
32 # mww 0xf005000c 0x000000a7
35 # mww 0xf0050008 0x00000002
36 # mww 0xf0050010 0x00000065
37 # mww 0xf0050054 0x00000040
40 # _PMCDRV = 0x00000071;
42 # // Initialize SDRAM timing parameter
44 # _DMC_CAS_LATENCY = 0x00000006;
45 # _DMC_T_DQSS = 0x00000000;
46 # _DMC_T_MRD = 0x00000002;
47 # _DMC_T_RAS = 0x00000007;
49 # _DMC_T_RC = 0x0000000A;
50 # _DMC_T_RCD = 0x00000013;
52 # _DMC_T_RFC = 0x0000010A;
54 # _DMC_T_RP = 0x00000013;
55 # _DMC_T_RRD = 0x00000002;
56 # _DMC_T_WR = 0x00000002;
57 # _DMC_T_WTR = 0x00000001;
58 # _DMC_T_XP = 0x0000000A;
59 # _DMC_T_XSR = 0x0000000B;
60 # _DMC_T_ESR = 0x00000014;
63 # // Configure SDRAM type parameter
64 # _DMC_MEMORY_CFG = 0x00008011;
65 # _DMC_USER_CONFIG = 0x00000011; // 32 bit memory interface
68 # _DMC_REFRESH_PRD = 0x00000A60;
69 # _DMC_CHIP_0_CFG = 0x000140FC;
71 # _DMC_DIRECT_CMD = 0x000C0000;
72 # _DMC_DIRECT_CMD = 0x00000000;
74 # _DMC_DIRECT_CMD = 0x00040000;
75 # _DMC_DIRECT_CMD = 0x00040000;
76 # _DMC_DIRECT_CMD = 0x00080031;
78 # // Finally start SDRAM
80 # _DMC_MEMC_CMD = MEMC_CMD_GO;
83 mww 0xf0020260 0x00000071
84 mww 0xf4300014 0x00000006
85 mww 0xf4300018 0x00000000
86 mww 0xf430001C 0x00000002
87 mww 0xf4300020 0x00000007
88 mww 0xf4300024 0x0000000A
89 mww 0xf4300028 0x00000013
90 mww 0xf430002C 0x0000010A
91 mww 0xf4300030 0x00000013
92 mww 0xf4300034 0x00000002
93 mww 0xf4300038 0x00000002
94 mww 0xf430003C 0x00000001
95 mww 0xf4300040 0x0000000A
96 mww 0xf4300044 0x0000000B
97 mww 0xf4300048 0x00000014
98 mww 0xf430000C 0x00008011
99 mww 0xf4300304 0x00000011
100 mww 0xf4300010 0x00000A60
101 mww 0xf4300200 0x000140FC
102 mww 0xf4300008 0x000C0000
103 mww 0xf4300008 0x00000000
104 mww 0xf4300008 0x00040000
105 mww 0xf4300008 0x00040000
106 mww 0xf4300008 0x00080031
107 mww 0xf4300004 0x00000000
112 # remap off in case of IROM boot
113 mww 0xf0000004 0x00000001
117 # comment the following out if usinf J-Link, it soes not support DCC
118 arm7_9 dcc_downloads enable ;# Enable faster DCC downloads
121 #####################
122 # Flash configuration
123 #####################
125 #flash bank <name> cfi <base> <size> <chip width> <bus width> <target>
126 set _FLASHNAME $_CHIPNAME.flash
127 flash bank $_FLASHNAME cfi 0x20000000 0x1000000 2 2 $_TARGETNAME