static void setup_spi_fpga(void)
{
int ret;
printk(KERN_INFO "SPI: setup fpga initialization\n");
#if 0
ret = gpio_request(S3C64XX_GPP(8), "FPGACS");
if (ret) {
printk(KERN_ERR "SPI: Setup FPGACS Error\n");
}
s3c_gpio_setpull(S3C64XX_GPP(8), S3C_GPIO_PULL_NONE); // Manual chip select pin as used in 6410_set_cs
s3c_gpio_cfgpin(S3C64XX_GPP(8), S3C_GPIO_OUTPUT); // Manual chip select pin as used in 6410_set_cs
#endif
ret = gpio_request(S3C64XX_GPP(12), "FPGAPRO");
if (ret) {
printk(KERN_ERR "SPI: Setup FPGAPRO Error\n");
}
s3c_gpio_setpull(S3C64XX_GPP(12), S3C_GPIO_PULL_UP); // Manual chip select pin as used in 6410_set_cs
s3c_gpio_cfgpin(S3C64XX_GPP(12), S3C_GPIO_OUTPUT); // Manual chip select pin as used in 6410_set_cs
gpio_direction_output(S3C64XX_GPP(12), 1);
mdelay(1);
gpio_direction_output(S3C64XX_GPP(12), 0);
msleep(200);
gpio_direction_output(S3C64XX_GPP(12), 1);
};
static void setup_pin_fpga(void)
{
int ret;
/* Initialize SPI GPIO for FPGA */
ret = gpio_request(S3C64XX_GPP(8), "fpga");
if (ret) {
printk(KERN_ERR "SPI: Setup CS-Pin0 Error\n");
}
s3c_gpio_setpull(S3C64XX_GPP(8), S3C_GPIO_PULL_NONE); // Manual chip select pin as used in 6410_set_cs
s3c_gpio_cfgpin(S3C64XX_GPP(8), S3C_GPIO_OUTPUT); // Manual chip select pin as used in 6410_set_cs
}
.label = "GPN",
.to_irq = s3c64xx_gpio2int_gpn,
},
}, {
.base = S3C64XX_GPO_BASE,
.config = &gpio_2bit_cfg_eint11,
.chip = {
.base = S3C64XX_GPO(0),
.ngpio = S3C64XX_GPIO_O_NR,
.label = "GPO",
},
}, {
.base = S3C64XX_GPP_BASE,
.config = &gpio_2bit_cfg_eint11,
.chip = {
.base = S3C64XX_GPP(0),
.ngpio = S3C64XX_GPIO_P_NR,
.label = "GPP",
},
}, {
.base = S3C64XX_GPQ_BASE,
.config = &gpio_2bit_cfg_eint11,
.chip = {
.base = S3C64XX_GPQ(0),
.ngpio = S3C64XX_GPIO_Q_NR,
.label = "GPQ",
},
},
};
static __init void s3c64xx_gpiolib_add_2bit(struct s3c_gpio_chip *chip)
static void cfg_fpga_pro(int val)
{
gpio_direction_output(S3C64XX_GPP(12), val);
}
gpio_direction_output(S3C64XX_GPP(12), 0);
msleep(200);
gpio_direction_output(S3C64XX_GPP(12), 1);
};
static struct s3c64xx_spi_csinfo s3c64xx_spi0_csinfo = {
.fb_delay=0x3,
.line=S3C64XX_GPC(3), /*used for FPGA now*/
//.line=S3C64XX_GPP(8),
.set_level=cs_set_level,
.cfg_io = setup_pin_cs0,
.cfg_fpga = cfg_fpga_pro,
};
static struct s3c64xx_spi_csinfo s3c64xx_spi0_fpga = {
.fb_delay=0x3,
.line=S3C64XX_GPP(8), /*used for FPGA now*/
.set_level=cs_set_level,
.cfg_io = setup_pin_fpga,
//.cfg_fpga = cfg_fpga_pro,
};
static int mcp251x_ioSetup(struct spi_device *spi)
{
printk(KERN_INFO "mcp251x: setup gpio pins CS and External Int\n");
s3c_gpio_setpull(S3C64XX_GPL(8), S3C_GPIO_PULL_UP); // External interrupt from CAN controller
s3c_gpio_cfgpin(S3C64XX_GPL(8), S3C_GPIO_SFN(3)); // External interrupt from CAN controller (hopefully external interrupt)
//s3c_gpio_cfgpin(S3C64XX_GPL(8), S3C_GPIO_INPUT); // External interrupt from CAN controller
s3c_gpio_setpull(S3C64XX_GPC(7), S3C_GPIO_PULL_NONE); // Manual chip select pin as used in 6410_set_cs
s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C_GPIO_OUTPUT); // Manual chip select pin as used in 6410_set_cs
return 0;
}
