ref: 53aac62a54ebbcc1781c0000d3e2384ed038c7bb
dir: /os/boot/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 */
};