tcl/board/kindle2.cfg

   1 # Board configuration file for Amazon Kindle Model No. D00701 and D00801
   2 # AKA Kindle 2nd generation and Kindle DX
   3 # using a Freescale MCIMX31LDVKN5D i.MX31 processor
   4 #
   5 # Pins at J9 40-Pin FFC-A:
   6 #  1 - GND
   7 # 16 - TRSTB
   8 # 17 - TDI
   9 # 18 - TMS
  10 # 19 - TCK
  11 # 20 - RTCK
  12 # 21 - TDO
  13 # 22 - DE
  14 # 25 - BOOT_MODE4
  15 # 27 - BOOT_MODE2
  16
  17 source [find target/imx31.cfg]
  18 source [find target/imx.cfg]
  19
  20 $_TARGETNAME configure -event reset-init { kindle2_init }
  21 $_TARGETNAME configure -event reset-start { adapter speed 1000 }
  22
  23 # 8MiB NOR Flash
  24 set _FLASHNAME $_CHIPNAME.flash
  25 flash bank $_FLASHNAME cfi 0xa0000000 0x800000 2 2 $_TARGETNAME
  26
  27 # 16kiB internal SRAM
  28 $_TARGETNAME configure -work-area-phys 0x1fffc000 \
  29         -work-area-size 0x4000 -work-area-backup 0
  30
  31 # FIXME: currently SRST is not wired to the system
  32 reset_config trst_only
  33 jtag_ntrst_assert_width 10
  34 jtag_ntrst_delay 30
  35
  36 # this is broken but enabled by default
  37 arm11 memwrite burst disable
  38
  39 adapter speed 1000
  40 ftdi_tdo_sample_edge falling
  41
  42 proc kindle2_init {} {
  43         imx3x_reset
  44         kindle2_clock_setup
  45         disable_mmu_and_cache
  46         kindle2_misc_init
  47         kindle2_sdram_init
  48         arm core_state arm
  49 }
  50
  51 proc kindle2_clock_setup {} {
  52         # CCMR: clock from FPM/CKIL
  53         mww 0x53f80000  0x074b0b7b
  54         # IPU_CONF
  55         mww 0x53fc0000  0x040
  56         # 398MHz
  57         mww 0x53f80004 0xff871650
  58         mww 0x53f80010 0x00331c23
  59 }
  60
  61 proc kindle2_misc_init { } {
  62         # AIPS1
  63         mww 0x43f00040 0x0
  64         mww 0x43f00044 0x0
  65         mww 0x43f00048 0x0
  66         mww 0x43f0004c 0x0
  67         mww 0x43f00050 0x0
  68         mww 0x43f00000 0x77777777
  69         mww 0x43f00004 0x77777777
  70
  71         # AIPS2
  72         mww 0x53f00040 0x0
  73         mww 0x53f00044 0x0
  74         mww 0x53f00048 0x0
  75         mww 0x53f0004c 0x0
  76         mww 0x53f00050 0x0
  77         mww 0x53f00000 0x77777777
  78         mww 0x53f00004 0x77777777
  79
  80         # Start 16 bit NorFlash Initialization on CS0
  81         mww 0xb8002000 0x0000cc03
  82         mww 0xb8002004 0xa0330d01
  83         mww 0xb8002008 0x00220800
  84 }
  85
  86 proc disable_mmu_and_cache {} {
  87         # Mode Supervisor, disable FIQ, IRQ and imprecise data aborts
  88         reg cpsr 0x1d3
  89
  90         # flush entire BTAC
  91         arm mcr 15 0 7 5 6 0
  92         # invalidate instruction and data cache
  93         # MCR CP15, 0, R1, C7, C7, 0
  94         arm mcr 15 0 7 7 0
  95
  96         # clean and invalidate cache
  97         arm mcr 15 0 7 15 0
  98
  99         # disable MMU and caches
 100         arm mcr 15 0 1 0 0 0
 101
 102         arm mcr 15 0 15 2 4 0
 103
 104         # invalidate TLBs
 105         arm mcr 15 0 8 7 0 0
 106
 107         # Drain the write buffer
 108         arm mcr 15 0 7 10 4 0
 109
 110         # start from AIPS 2GB region
 111         arm mcr 15 0 15 2 4 0x40000015
 112 }
 113
 114 proc kindle2_sdram_init {} {
 115         #--------------------------------------------
 116         # Samsung K4X1G323PC-8GC3 32Mx32 Mobile DDR SDRAM
 117         #--------------------------------------------
 118         # SDCLK
 119         mww 0x43fac26c 0
 120
 121         # CAS
 122         mww 0x43fac270 0
 123
 124         # RAS
 125         mww 0x43fac274 0
 126
 127         # CS2 (CSD0)
 128         mww 0x43fac27c 0x1000
 129
 130         # DQM3
 131         mww 0x43fac284 0
 132
 133         # DQM2, DQM1, DQM0, SD31-SD0, A25-A0, MA10 (0x288..0x2dc)
 134         mww 0x43fac288 0
 135         mww 0x43fac28c 0
 136         mww 0x43fac290 0
 137         mww 0x43fac294 0
 138         mww 0x43fac298 0
 139         mww 0x43fac29c 0
 140         mww 0x43fac2a0 0
 141         mww 0x43fac2a4 0
 142         mww 0x43fac2a8 0
 143         mww 0x43fac2ac 0
 144         mww 0x43fac2b0 0
 145         mww 0x43fac2b4 0
 146         mww 0x43fac2b8 0
 147         mww 0x43fac2bc 0
 148         mww 0x43fac2c0 0
 149         mww 0x43fac2c4 0
 150         mww 0x43fac2c8 0
 151         mww 0x43fac2cc 0
 152         mww 0x43fac2d0 0
 153         mww 0x43fac2d4 0
 154         mww 0x43fac2d8 0
 155         mww 0x43fac2dc 0
 156
 157         # ?
 158         mww 0xb8002000 0x00006602
 159         mww 0xb8002004 0x00000501
 160         mww 0xb8002008 0x00000000
 161
 162         # LPDDR1 Initialization script
 163         mww 0xb8001010 0x00000002
 164         mww 0xb8001010 0x00000004
 165         # ESDCFG0: set timing paramters
 166         mww 0xb8001004 0x007fff7f
 167         # ESDCTL0: select Prechare-All mode
 168         mww 0xb8001000 0x92100000
 169         mww 0x80000f00 0x12344321
 170         # ESDCTL0: Auto Refresh
 171         mww 0xb8001000 0xa2100000
 172         mww 0x80000000 0x12344321
 173         mww 0x80000000 0x12344321
 174         # ESDCTL0: Load Mode Register
 175         mww 0xb8001000 0xb2100000
 176         mwb 0x80000033 0xda
 177         mwb 0x81000000 0xff
 178         # ESDCTL0: enable Auto-Refresh
 179         mww 0xb8001000 0x82226080
 180         mww 0x80000000 0xdeadbeef
 181 }