board/pxa255_idp/pxa_reg_calcs.py

   1 #!/usr/bin/python
   2
   3 # (C) Copyright 2004
   4 # BEC Systems <http://bec-systems.com>
   5 # Cliff Brake <cliff.brake@gmail.com>
   6
   7 # This program is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU General Public License as
   9 # published by the Free Software Foundation; either version 2 of
  10 # the License, or (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20 # MA 02111-1307 USA
  21
  22 # calculations for PXA255 registers
  23
  24 class gpio:
  25         dir = '0'
  26         set = '0'
  27         clr = '0'
  28         alt = '0'
  29         desc = ''
  30
  31         def __init__(self, dir=0, set=0, clr=0, alt=0, desc=''):
  32                 self.dir = dir
  33                 self.set = set
  34                 self.clr = clr
  35                 self.alt = alt
  36                 self.desc = desc
  37
  38
  39 # the following is a dictionary of all GPIOs in the system
  40 # the key is the GPIO number
  41
  42
  43 pxa255_alt_func = {
  44         0: ['gpio', 'none', 'none', 'none'],
  45         1: ['gpio', 'gpio reset', 'none', 'none'],
  46         2: ['gpio', 'none', 'none', 'none'],
  47         3: ['gpio', 'none', 'none', 'none'],
  48         4: ['gpio', 'none', 'none', 'none'],
  49         5: ['gpio', 'none', 'none', 'none'],
  50         6: ['gpio', 'MMC clk', 'none', 'none'],
  51         7: ['gpio', '48MHz clock', 'none', 'none'],
  52         8: ['gpio', 'MMC CS0', 'none', 'none'],
  53         9: ['gpio', 'MMC CS1', 'none', 'none'],
  54         10: ['gpio', 'RTC Clock', 'none', 'none'],
  55         11: ['gpio', '3.6MHz', 'none', 'none'],
  56         12: ['gpio', '32KHz', 'none', 'none'],
  57         13: ['gpio', 'none', 'MBGNT', 'none'],
  58         14: ['gpio', 'MBREQ', 'none', 'none'],
  59         15: ['gpio', 'none', 'nCS_1', 'none'],
  60         16: ['gpio', 'none', 'PWM0', 'none'],
  61         17: ['gpio', 'none', 'PWM1', 'none'],
  62         18: ['gpio', 'RDY', 'none', 'none'],
  63         19: ['gpio', 'DREQ[1]', 'none', 'none'],
  64         20: ['gpio', 'DREQ[0]', 'none', 'none'],
  65         21: ['gpio', 'none', 'none', 'none'],
  66         22: ['gpio', 'none', 'none', 'none'],
  67         23: ['gpio', 'none', 'SSP SCLK', 'none'],
  68         24: ['gpio', 'none', 'SSP SFRM', 'none'],
  69         25: ['gpio', 'none', 'SSP TXD', 'none'],
  70         26: ['gpio', 'SSP RXD', 'none', 'none'],
  71         27: ['gpio', 'SSP EXTCLK', 'none', 'none'],
  72         28: ['gpio', 'AC97 bitclk in, I2S bitclock out', 'I2S bitclock in', 'none'],
  73         29: ['gpio', 'AC97 SDATA_IN0', 'I2S SDATA_IN', 'none'],
  74         30: ['gpio', 'I2S SDATA_OUT', 'AC97 SDATA_OUT', 'none'],
  75         31: ['gpio', 'I2S SYNC', 'AC97 SYNC', 'none'],
  76         32: ['gpio', 'AC97 SDATA_IN1', 'I2S SYSCLK', 'none'],
  77         33: ['gpio', 'none', 'nCS_5', 'none'],
  78         34: ['gpio', 'FF RXD', 'MMC CS0', 'none'],
  79         35: ['gpio', 'FF CTS', 'none', 'none'],
  80         36: ['gpio', 'FF DCD', 'none', 'none'],
  81         37: ['gpio', 'FF DSR', 'none', 'none'],
  82         38: ['gpio', 'FF RI', 'none', 'none'],
  83         39: ['gpio', 'MMC CS1', 'FF TXD', 'none'],
  84         40: ['gpio', 'none', 'FF DTR', 'none'],
  85         41: ['gpio', 'none', 'FF RTS', 'none'],
  86         42: ['gpio', 'BT RXD', 'none', 'HW RXD'],
  87         43: ['gpio', 'none', 'BT TXD', 'HW TXD'],
  88         44: ['gpio', 'BT CTS', 'none', 'HW CTS'],
  89         45: ['gpio', 'none', 'BT RTS', 'HW RTS'],
  90         46: ['gpio', 'ICP_RXD', 'STD RXD', 'none'],
  91         47: ['gpio', 'STD TXD', 'ICP_TXD', 'none'],
  92         48: ['gpio', 'HW TXD', 'nPOE', 'none'],
  93         49: ['gpio', 'HW RXD', 'nPWE', 'none'],
  94         50: ['gpio', 'HW CTS', 'nPIOR', 'none'],
  95         51: ['gpio', 'nPIOW', 'HW RTS', 'none'],
  96         52: ['gpio', 'none', 'nPCE[1]', 'none'],
  97         53: ['gpio', 'MMC CLK', 'nPCE[2]', 'none'],
  98         54: ['gpio', 'MMC CLK', 'nPSKSEL', 'none'],
  99         55: ['gpio', 'none', 'nPREG', 'none'],
 100         56: ['gpio', 'nPWAIT', 'none', 'none'],
 101         57: ['gpio', 'nIOIS16', 'none', 'none'],
 102         58: ['gpio', 'none', 'LDD[0]', 'none'],
 103         59: ['gpio', 'none', 'LDD[1]', 'none'],
 104         60: ['gpio', 'none', 'LDD[2]', 'none'],
 105         61: ['gpio', 'none', 'LDD[3]', 'none'],
 106         62: ['gpio', 'none', 'LDD[4]', 'none'],
 107         63: ['gpio', 'none', 'LDD[5]', 'none'],
 108         64: ['gpio', 'none', 'LDD[6]', 'none'],
 109         65: ['gpio', 'none', 'LDD[7]', 'none'],
 110         66: ['gpio', 'MBREQ', 'LDD[8]', 'none'],
 111         67: ['gpio', 'MMC CS0', 'LDD[9]', 'none'],
 112         68: ['gpio', 'MMC CS1', 'LDD[10]', 'none'],
 113         69: ['gpio', 'MMC CLK', 'LDD[11]', 'none'],
 114         70: ['gpio', 'RTC CLK', 'LDD[12]', 'none'],
 115         71: ['gpio', '3.6 MHz', 'LDD[13]', 'none'],
 116         72: ['gpio', '32 KHz', 'LDD[14]', 'none'],
 117         73: ['gpio', 'MBGNT', 'LDD[15]', 'none'],
 118         74: ['gpio', 'none', 'LCD_FCLK', 'none'],
 119         75: ['gpio', 'none', 'LCD_LCLK', 'none'],
 120         76: ['gpio', 'none', 'LCD_PCLK', 'none'],
 121         77: ['gpio', 'none', 'LCD_ACBIAS', 'none'],
 122         78: ['gpio', 'none', 'nCS_2', 'none'],
 123         79: ['gpio', 'none', 'nCS_3', 'none'],
 124         80: ['gpio', 'none', 'nCS_4', 'none'],
 125         81: ['gpio', 'NSSPSCLK', 'none', 'none'],
 126         82: ['gpio', 'NSSPSFRM', 'none', 'none'],
 127         83: ['gpio', 'NSSPTXD', 'NSSPRXD', 'none'],
 128         84: ['gpio', 'NSSPTXD', 'NSSPRXD', 'none'],
 129 }
 130
 131
 132 #def __init__(self, dir=0, set=0, clr=0, alt=0, desc=''):
 133
 134 gpio_list = []
 135
 136 for i in range(0,85):
 137         gpio_list.append(gpio())
 138
 139 #chip select GPIOs
 140 gpio_list[18] = gpio(0, 0, 0, 1, 'RDY')
 141 gpio_list[33] = gpio(1, 1, 0, 2, 'CS5#')
 142 gpio_list[80] = gpio(1, 1, 0, 2, 'CS4#')
 143 gpio_list[79] = gpio(1, 1, 0, 2, 'CS3#')
 144 gpio_list[78] = gpio(1, 1, 0, 2, 'CS2#')
 145 gpio_list[15] = gpio(1, 1, 0, 2, 'CS1#')
 146 gpio_list[22] = gpio(0, 0, 0, 0, 'Consumer IR, PCC_S1_IRQ_O#')
 147 gpio_list[21] = gpio(0, 0, 0, 0, 'IRQ_IDE, PFI')
 148 gpio_list[19] = gpio(0, 0, 0, 0, 'XB_DREQ1, PCC_SO_IRQ_O#')
 149 gpio_list[20] = gpio(0, 0, 0, 0, 'XB_DREQ0')
 150 gpio_list[20] = gpio(0, 0, 0, 0, 'XB_DREQ0')
 151 gpio_list[17] = gpio(0, 0, 0, 0, 'IRQ_AXB')
 152 gpio_list[16] = gpio(1, 0, 0, 2, 'PWM0')
 153
 154 # PCMCIA stuff
 155 gpio_list[57] = gpio(0, 0, 0, 1, 'PCC_IOIS16#')
 156 gpio_list[56] = gpio(0, 0, 0, 1, 'PCC_WAIT#')
 157 gpio_list[55] = gpio(1, 0, 0, 2, 'PCC_REG#')
 158 gpio_list[54] = gpio(1, 0, 0, 2, 'PCC_SCKSEL')
 159 gpio_list[53] = gpio(1, 1, 0, 2, 'PCC_CE2#')
 160 gpio_list[52] = gpio(1, 1, 0, 2, 'PCC_CE1#')
 161 gpio_list[51] = gpio(1, 1, 0, 1, 'PCC_IOW#')
 162 gpio_list[50] = gpio(1, 1, 0, 2, 'PCC_IOR#')
 163 gpio_list[49] = gpio(1, 1, 0, 2, 'PCC_WE#')
 164 gpio_list[48] = gpio(1, 1, 0, 2, 'PCC_OE#')
 165
 166 # SSP port
 167 gpio_list[26] = gpio(0, 0, 0, 1, 'SSP_RXD')
 168 gpio_list[25] = gpio(0, 0, 0, 0, 'SSP_TXD')
 169 gpio_list[24] = gpio(1, 0, 1, 2, 'SSP_SFRM')
 170 gpio_list[23] = gpio(1, 0, 1, 2, 'SSP_SCLK')
 171 gpio_list[27] = gpio(0, 0, 0, 0, 'SSP_EXTCLK')
 172
 173 # audio codec
 174 gpio_list[32] = gpio(0, 0, 0, 0, 'AUD_SDIN1')
 175 gpio_list[31] = gpio(1, 0, 0, 2, 'AC_SYNC')
 176 gpio_list[30] = gpio(1, 0, 0, 2, 'AC_SDOUT')
 177 gpio_list[29] = gpio(0, 0, 0, 1, 'AUD_SDIN0')
 178 gpio_list[28] = gpio(0, 0, 0, 1, 'AC_BITCLK')
 179
 180 # serial ports
 181 gpio_list[39] = gpio(1, 0, 0, 2, 'FF_TXD')
 182 gpio_list[34] = gpio(0, 0, 0, 1, 'FF_RXD')
 183 gpio_list[41] = gpio(1, 0, 0, 2, 'FF_RTS')
 184 gpio_list[35] = gpio(0, 0, 0, 1, 'FF_CTS')
 185 gpio_list[40] = gpio(1, 0, 0, 2, 'FF_DTR')
 186 gpio_list[37] = gpio(0, 0, 0, 1, 'FF_DSR')
 187 gpio_list[38] = gpio(0, 0, 0, 1, 'FF_RI')
 188 gpio_list[36] = gpio(0, 0, 0, 1, 'FF_DCD')
 189
 190 gpio_list[43] = gpio(1, 0, 0, 2, 'BT_TXD')
 191 gpio_list[42] = gpio(0, 0, 0, 1, 'BT_RXD')
 192 gpio_list[45] = gpio(1, 0, 0, 2, 'BT_RTS')
 193 gpio_list[44] = gpio(0, 0, 0, 1, 'BT_CTS')
 194
 195 gpio_list[47] = gpio(1, 0, 0, 1, 'IR_TXD')
 196 gpio_list[46] = gpio(0, 0, 0, 2, 'IR_RXD')
 197
 198 # misc GPIO signals
 199 gpio_list[14] = gpio(0, 0, 0, 0, 'MBREQ')
 200 gpio_list[13] = gpio(0, 0, 0, 0, 'MBGNT')
 201 gpio_list[12] = gpio(0, 0, 0, 0, 'GPIO_12/32K_CLK')
 202 gpio_list[11] = gpio(0, 0, 0, 0, '3M6_CLK')
 203 gpio_list[10] = gpio(1, 0, 1, 0, 'GPIO_10/RTC_CLK/debug LED')
 204 gpio_list[9] = gpio(0, 0, 0, 0, 'MMC_CD#')
 205 gpio_list[8] = gpio(0, 0, 0, 0, 'PCC_S1_CD#')
 206 gpio_list[7] = gpio(0, 0, 0, 0, 'PCC_S0_CD#')
 207 gpio_list[6] = gpio(1, 0, 0, 1, 'MMC_CLK')
 208 gpio_list[5] = gpio(0, 0, 0, 0, 'IRQ_TOUCH#')
 209 gpio_list[4] = gpio(0, 0, 0, 0, 'IRQ_ETH')
 210 gpio_list[3] = gpio(0, 0, 0, 0, 'MQ_IRQ#')
 211 gpio_list[2] = gpio(0, 0, 0, 0, 'BAT_DATA')
 212 gpio_list[1] = gpio(0, 0, 0, 1, 'USER_RESET#')
 213 gpio_list[0] = gpio(0, 0, 0, 1, 'USER_RESET#')
 214
 215 # LCD GPIOs
 216 gpio_list[58] = gpio(1, 0, 0, 2, 'LDD0')
 217 gpio_list[59] = gpio(1, 0, 0, 2, 'LDD1')
 218 gpio_list[60] = gpio(1, 0, 0, 2, 'LDD2')
 219 gpio_list[61] = gpio(1, 0, 0, 2, 'LDD3')
 220 gpio_list[62] = gpio(1, 0, 0, 2, 'LDD4')
 221 gpio_list[63] = gpio(1, 0, 0, 2, 'LDD5')
 222 gpio_list[64] = gpio(1, 0, 0, 2, 'LDD6')
 223 gpio_list[65] = gpio(1, 0, 0, 2, 'LDD7')
 224 gpio_list[66] = gpio(1, 0, 0, 2, 'LDD8')
 225 gpio_list[67] = gpio(1, 0, 0, 2, 'LDD9')
 226 gpio_list[68] = gpio(1, 0, 0, 2, 'LDD10')
 227 gpio_list[69] = gpio(1, 0, 0, 2, 'LDD11')
 228 gpio_list[70] = gpio(1, 0, 0, 2, 'LDD12')
 229 gpio_list[71] = gpio(1, 0, 0, 2, 'LDD13')
 230 gpio_list[72] = gpio(1, 0, 0, 2, 'LDD14')
 231 gpio_list[73] = gpio(1, 0, 0, 2, 'LDD15')
 232 gpio_list[74] = gpio(1, 0, 0, 2, 'FCLK')
 233 gpio_list[75] = gpio(1, 0, 0, 2, 'LCLK')
 234 gpio_list[76] = gpio(1, 0, 0, 2, 'PCLK')
 235 gpio_list[77] = gpio(1, 0, 0, 2, 'ACBIAS')
 236
 237 # calculate registers
 238 pxa_regs = {
 239         'gpdr0':0, 'gpdr1':0, 'gpdr2':0,
 240         'gpsr0':0, 'gpsr1':0, 'gpsr2':0,
 241         'gpcr0':0, 'gpcr1':0, 'gpcr2':0,
 242         'gafr0_l':0, 'gafr0_u':0,
 243         'gafr1_l':0, 'gafr1_u':0,
 244         'gafr2_l':0, 'gafr2_u':0,
 245 }
 246
 247 # U-boot define names
 248 uboot_reg_names = {
 249         'gpdr0':'CFG_GPDR0_VAL', 'gpdr1':'CFG_GPDR1_VAL', 'gpdr2':'CFG_GPDR2_VAL',
 250         'gpsr0':'CFG_GPSR0_VAL', 'gpsr1':'CFG_GPSR1_VAL', 'gpsr2':'CFG_GPSR2_VAL',
 251         'gpcr0':'CFG_GPCR0_VAL', 'gpcr1':'CFG_GPCR1_VAL', 'gpcr2':'CFG_GPCR2_VAL',
 252         'gafr0_l':'CFG_GAFR0_L_VAL', 'gafr0_u':'CFG_GAFR0_U_VAL',
 253         'gafr1_l':'CFG_GAFR1_L_VAL', 'gafr1_u':'CFG_GAFR1_U_VAL',
 254         'gafr2_l':'CFG_GAFR2_L_VAL', 'gafr2_u':'CFG_GAFR2_U_VAL',
 255 }
 256
 257 # bit mappings
 258
 259 bit_mappings = [
 260
 261 { 'gpio':(0,32),  'shift':1, 'regs':{'dir':'gpdr0', 'set':'gpsr0', 'clr':'gpcr0'} },
 262 { 'gpio':(32,64), 'shift':1, 'regs':{'dir':'gpdr1', 'set':'gpsr1', 'clr':'gpcr1'} },
 263 { 'gpio':(64,85), 'shift':1, 'regs':{'dir':'gpdr2', 'set':'gpsr2', 'clr':'gpcr2'} },
 264 { 'gpio':(0,16),  'shift':2, 'regs':{'alt':'gafr0_l'} },
 265 { 'gpio':(16,32), 'shift':2, 'regs':{'alt':'gafr0_u'} },
 266 { 'gpio':(32,48), 'shift':2, 'regs':{'alt':'gafr1_l'} },
 267 { 'gpio':(48,64), 'shift':2, 'regs':{'alt':'gafr1_u'} },
 268 { 'gpio':(64,80), 'shift':2, 'regs':{'alt':'gafr2_l'} },
 269 { 'gpio':(80,85), 'shift':2, 'regs':{'alt':'gafr2_u'} },
 270
 271 ]
 272
 273 def stuff_bits(bit_mapping, gpio_list):
 274         gpios = range( bit_mapping['gpio'][0], bit_mapping['gpio'][1])
 275
 276         for gpio in gpios:
 277                 for reg in bit_mapping['regs'].keys():
 278                         value = eval( 'gpio_list[gpio].%s' % (reg) )
 279                         if ( value ):
 280                                 # we have a high bit
 281                                 bit_shift = (gpio - bit_mapping['gpio'][0]) * bit_mapping['shift']
 282                                 bit = value << (bit_shift)
 283                                 pxa_regs[bit_mapping['regs'][reg]] |= bit
 284
 285 for i in bit_mappings:
 286         stuff_bits(i, gpio_list)
 287
 288 # now print out all regs
 289 registers = pxa_regs.keys()
 290 registers.sort()
 291 for reg in registers:
 292         print '%s: 0x%x' % (reg, pxa_regs[reg])
 293
 294 # print define to past right into U-Boot source code
 295
 296 print
 297 print
 298
 299 for reg in registers:
 300         print '#define %s       0x%x' % (uboot_reg_names[reg], pxa_regs[reg])
 301
 302 # print all GPIOS
 303 print
 304 print
 305
 306 for i in range(len(gpio_list)):
 307         gpio_i = gpio_list[i]
 308         alt_func_desc = pxa255_alt_func[i][gpio_i.alt]
 309         print 'GPIO: %i, dir=%i, set=%i, clr=%i, alt=%s, desc=%s' % (i, gpio_i.dir, gpio_i.set, gpio_i.clr, alt_func_desc, gpio_i.desc)
 310
 311