static void __init n30_init(void) { WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power")); s3c24xx_fb_set_platdata(&n30_fb_info); s3c24xx_udc_set_platdata(&n30_udc_cfg); s3c24xx_mci_set_platdata(&n30_mci_cfg); s3c_i2c0_set_platdata(&n30_i2ccfg); /* Turn off suspend on both USB ports, and switch the * selectable USB port to USB device mode. */ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | S3C2410_MISCCR_USBSUSPND0 | S3C2410_MISCCR_USBSUSPND1, 0x0); if (machine_is_n30()) { /* Turn off suspend on both USB ports, and switch the * selectable USB port to USB device mode. */ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | S3C2410_MISCCR_USBSUSPND0 | S3C2410_MISCCR_USBSUSPND1, 0x0); platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices)); } if (machine_is_n35()) { /* Turn off suspend and switch the selectable USB port * to USB device mode. Turn on suspend for the host * port since it is not connected on the N35. * * Actually, the host port is available at some pads * on the back of the device, so it would actually be * possible to add a USB device inside the N35 if you * are willing to do some hardware modifications. */ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | S3C2410_MISCCR_USBSUSPND0 | S3C2410_MISCCR_USBSUSPND1, S3C2410_MISCCR_USBSUSPND0); platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices)); } WARN_ON(gpio_request(S3C2410_GPB(3), "udc pup")); gpio_direction_output(S3C2410_GPB(3), 0); }
/* Lots of hardcoded stuff, but it sets up the hardware in a useful * state so that we can boot Linux directly from flash. */ static void __init n30_hwinit(void) { /* GPA0-11 special functions -- unknown what they do * GPA12 N30 special function -- unknown what it does * N35/PiN output -- unknown what it does * * A12 is nGCS1 on the N30 and an output on the N35/PiN. I * don't think it does anything useful on the N30, so I ought * to make it an output there too since it always driven to 0 * as far as I can tell. */ if (machine_is_n30()) __raw_writel(0x007fffff, S3C2410_GPACON); if (machine_is_n35()) __raw_writel(0x007fefff, S3C2410_GPACON); __raw_writel(0x00000000, S3C2410_GPADAT); /* GPB0 TOUT0 backlight level * GPB1 output 1=backlight on * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled * GPB3 output USB D+ pull up 0=disabled, 1=enabled * GPB4 N30 output -- unknown function * N30/PiN GPS control 0=GPS enabled, 1=GPS disabled * GPB5 output -- unknown function * GPB6 input -- unknown function * GPB7 output -- unknown function * GPB8 output -- probably LCD driver enable * GPB9 output -- probably LCD VSYNC driver enable * GPB10 output -- probably LCD HSYNC driver enable */ __raw_writel(0x00154556, S3C2410_GPBCON); __raw_writel(0x00000750, S3C2410_GPBDAT); __raw_writel(0x00000073, S3C2410_GPBUP); /* GPC0 input RS232 DCD/DSR/RI * GPC1 LCD * GPC2 output RS232 DTR? * GPC3 input RS232 DCD/DSR/RI * GPC4 LCD * GPC5 output 0=NAND write enabled, 1=NAND write protect * GPC6 input -- unknown function * GPC7 input charger status 0=charger connected * this input can be triggered by power on the USB device * port too, but will go back to disconnected soon after. * GPC8 N30/N35 output -- unknown function, always driven to 1 * PiN input -- unknown function, always read as 1 * Make it an input with a pull up for all models. * GPC9-15 LCD */ __raw_writel(0xaaa80618, S3C2410_GPCCON); __raw_writel(0x0000014c, S3C2410_GPCDAT); __raw_writel(0x0000fef2, S3C2410_GPCUP); /* GPD0 input -- unknown function * GPD1-D7 LCD * GPD8 N30 output -- unknown function * N35/PiN output 1=GPS LED on * GPD9 output 0=power led blinks red, 1=normal power led function * GPD10 output -- unknown function * GPD11-15 LCD drivers */ __raw_writel(0xaa95aaa4, S3C2410_GPDCON); __raw_writel(0x00000601, S3C2410_GPDDAT); __raw_writel(0x0000fbfe, S3C2410_GPDUP); /* GPE0-4 I2S audio bus * GPE5-10 SD/MMC bus * E11-13 outputs -- unknown function, probably power management * E14-15 I2C bus connected to the battery controller */ __raw_writel(0xa56aaaaa, S3C2410_GPECON); __raw_writel(0x0000efc5, S3C2410_GPEDAT); __raw_writel(0x0000f81f, S3C2410_GPEUP); /* GPF0 input 0=power button pressed * GPF1 input SD/MMC switch 0=card present * GPF2 N30 1=reset button pressed (inverted compared to the rest) * N35/PiN 0=reset button pressed * GPF3 N30/PiN input -- unknown function * N35 input GPS antenna position, 0=antenna closed, 1=open * GPF4 input 0=button 4 pressed * GPF5 input 0=button 3 pressed * GPF6 input 0=button 2 pressed * GPF7 input 0=button 1 pressed */ __raw_writel(0x0000aaaa, S3C2410_GPFCON); __raw_writel(0x00000000, S3C2410_GPFDAT); __raw_writel(0x000000ff, S3C2410_GPFUP); /* GPG0 input RS232 DCD/DSR/RI * GPG1 input 1=USB gadget port has power from a host * GPG2 N30 input -- unknown function * N35/PiN input 0=headphones plugged in, 1=not plugged in * GPG3 N30 output -- unknown function * N35/PiN input with unknown function * GPG4 N30 output 0=MMC enabled, 1=MMC disabled * GPG5 N30 output 0=BlueTooth chip disabled, 1=enabled * N35/PiN input joystick right * GPG6 N30 output 0=blue led on, 1=off * N35/PiN input joystick left * GPG7 input 0=thumbwheel pressed * GPG8 input 0=thumbwheel down * GPG9 input 0=thumbwheel up * GPG10 input SD/MMC write protect switch * GPG11 N30 input -- unknown function * N35 output 0=GPS antenna powered, 1=not powered * PiN output -- unknown function * GPG12-15 touch screen functions * * The pullups differ between the models, so enable all * pullups that are enabled on any of the models. */ if (machine_is_n30()) __raw_writel(0xff0a956a, S3C2410_GPGCON); if (machine_is_n35()) __raw_writel(0xff4aa92a, S3C2410_GPGCON); __raw_writel(0x0000e800, S3C2410_GPGDAT); __raw_writel(0x0000f86f, S3C2410_GPGUP); /* GPH0/1/2/3 RS232 serial port * GPH4/5 IrDA serial port * GPH6/7 N30 BlueTooth serial port * N35/PiN GPS receiver * GPH8 input -- unknown function * GPH9 CLKOUT0 HCLK -- unknown use * GPH10 CLKOUT1 FCLK -- unknown use * * The pull ups for H6/H7 are enabled on N30 but not on the * N35/PiN. I suppose is useful for a budget model of the N30 * with no bluetooh. It doesn't hurt to have the pull ups * enabled on the N35, so leave them enabled for all models. */ __raw_writel(0x0028aaaa, S3C2410_GPHCON); __raw_writel(0x000005ef, S3C2410_GPHDAT); __raw_writel(0x0000063f, S3C2410_GPHUP); }