ref: e81c54ba2ecc673a4d5f8aed0e9b52841fe07b0d
dir: /os/boot.original/mpc/archpaq.h/
enum { /* memory controller CS assignment on PowerPAQ */ BOOTCS = 0, DRAM1 = 1, /* UPMB */ DRAM2 = 2, /* UPMB */ /* CS3 also connected to DRAM */ /* CS4 128mbyte 8-bit gpcm, trlx, 15 wait; it's DAC */ /* CS5 is external*/ }; enum { /* I2C addresses */ PanelI2C = 0x21<<1, /* the control bits are active low enables, or high disables */ DisableVGA = ~0xFD, /* disable VGA signals */ DisableTFT = ~0xFB, /* disable TFT panel signals */ DisableSPIBus = ~0xF7, /* disable SPI/I2C to panel */ DisablePanelVCC5 = ~0xEF, /* disable +5V to panel(s) */ DisablePanelVCC3 = ~0xDF, /* disable +3.3V to panel(s) */ DisableMonoPanel = ~0xBF, /* disable mono panel signals */ DisableSPISelect = ~0x7F, /* disable SPI chip select to LVDS panel */ ContrastI2C = 0x2E<<1, LEDRegI2C = 0x20<<1, DisableGreenLED = ~0xFE, DisableYellowLED = ~0xFD, DisableRedLED = ~0xFB, EnableLCD = IBIT(23), /* LCD enable bit in i/o port B */ };