static int s3c_serial_suspend(struct platform_device *dev, pm_message_t state)
{
struct uart_port *port = s3c_dev_to_port(&dev->dev);
unsigned int gpadata = 0;
unsigned int gpaconslp = 0;
if(port->line == 0) {
gpadata = __raw_readl(S3C64XX_GPADAT);
gpadata |= (1<<3);
__raw_writel(gpadata, S3C64XX_GPADAT);
} else if(port->line == 1) {
s3c_gpio_cfgpin(S3C64XX_GPA(7), S3C_GPIO_SFN(1));
gpaconslp = __raw_readl(S3C64XX_GPACONSLP);
gpaconslp |= (1 << 14);
gpaconslp &= ~(1 << 15);
__raw_writel(gpaconslp, S3C64XX_GPACONSLP);
gpadata = __raw_readl(S3C64XX_GPADAT);
gpadata |= (1 << 7);
__raw_writel(gpadata, S3C64XX_GPADAT);
s3c_gpio_setpull(S3C64XX_GPA(7), S3C_GPIO_PULL_NONE);
}
s3c6410_pm_do_save(uart_save + port->line * SAVE_UART_PORT, SAVE_UART_PORT);
if (port)
uart_suspend_port(&s3c_uart_drv, port);
return 0;
}
static int s3c_serial_resume(struct platform_device *dev)
{
struct uart_port *port = s3c_dev_to_port(&dev->dev);
struct s3c_uart_port *ourport = to_ourport(port);
unsigned int gpadata = 0;
if (port) {
clk_enable(ourport->clk);
s3c_serial_resetport(port, s3c_port_to_cfg(port));
clk_disable(ourport->clk);
s3c6410_pm_do_restore(uart_save + port->line * SAVE_UART_PORT, SAVE_UART_PORT);
uart_resume_port(&s3c_uart_drv, port);
}
if (port->line == 0) {
gpadata = __raw_readl(S3C64XX_GPADAT);
gpadata &= ~(1<<3);
__raw_writel(gpadata, S3C64XX_GPADAT);
} else if(port->line == 1) {
s3c_gpio_cfgpin(S3C64XX_GPA(7), S3C_GPIO_SFN(1));
gpadata = __raw_readl(S3C64XX_GPADAT);
gpadata &= ~(1<<7);
__raw_writel(gpadata, S3C64XX_GPADAT);
s3c_gpio_setpull(S3C64XX_GPA(7), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C64XX_GPA(7), S3C_GPIO_SFN(2));
}
return 0;
}
.set_config = s3c_gpio_setcfg_s3c64xx_4bit,
.set_pull = s3c_gpio_setpull_updown,
.get_pull = s3c_gpio_getpull_updown,
};
int s3c64xx_gpio2int_gpm(struct gpio_chip *chip, unsigned pin)
{
return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
}
static struct s3c_gpio_chip gpio_4bit[] = {
{
.base = S3C64XX_GPA_BASE,
.config = &gpio_4bit_cfg_eint0111,
.chip = {
.base = S3C64XX_GPA(0),
.ngpio = S3C64XX_GPIO_A_NR,
.label = "GPA",
},
}, {
.base = S3C64XX_GPB_BASE,
.config = &gpio_4bit_cfg_eint0111,
.chip = {
.base = S3C64XX_GPB(0),
.ngpio = S3C64XX_GPIO_B_NR,
.label = "GPB",
},
}, {
.base = S3C64XX_GPC_BASE,
.config = &gpio_4bit_cfg_eint0111,
.chip = {
void s3c_setup_uart_cfg_gpio(unsigned char hwport, struct uart_port* port)
{
switch (hwport)
{
case 0:
s3c_gpio_cfgpin(S3C64XX_GPA(0),S3C64XX_GPA0_UART_RXD0);
s3c_gpio_setpull(S3C64XX_GPA(0), S3C_GPIO_PULL_DOWN);
s3c_gpio_cfgpin(S3C64XX_GPA(1),S3C64XX_GPA1_UART_TXD0);
s3c_gpio_setpull(S3C64XX_GPA(1), S3C_GPIO_PULL_DOWN);
s3c_gpio_cfgpin(S3C64XX_GPA(2),S3C_GPIO_INPUT);
s3c_gpio_setpull(S3C64XX_GPA(2), S3C_GPIO_PULL_DOWN);
s3c_gpio_cfgpin(S3C64XX_GPA(3),S3C_GPIO_OUTPUT);
s3c_gpio_setpull(S3C64XX_GPA(3), S3C_GPIO_PULL_DOWN);
wr_regb(port, S3C_UMSTAT, 0);
break;
case 1:
s3c_gpio_cfgpin(S3C64XX_GPA(4),S3C64XX_GPA4_UART_RXD1);
s3c_gpio_setpull(S3C64XX_GPA(4), S3C_GPIO_PULL_DOWN);
s3c_gpio_cfgpin(S3C64XX_GPA(5),S3C64XX_GPA5_UART_TXD1);
s3c_gpio_setpull(S3C64XX_GPA(5), S3C_GPIO_PULL_DOWN);
//s3c_gpio_cfgpin(S3C64XX_GPA(6),S3C64XX_GPA6_UART_nCTS1);
s3c_gpio_setpull(S3C64XX_GPA(6), S3C_GPIO_PULL_DOWN);
//s3c_gpio_cfgpin(S3C64XX_GPA(7),S3C64XX_GPA7_UART_nRTS1);
s3c_gpio_setpull(S3C64XX_GPA(7), S3C_GPIO_PULL_DOWN);
wr_regb(port, S3C_UMSTAT, 0);
break;
case 2:
s3c_gpio_cfgpin(S3C64XX_GPB(0),S3C64XX_GPB0_UART_RXD2);
s3c_gpio_setpull(S3C64XX_GPB(0), S3C_GPIO_PULL_DOWN);
s3c_gpio_cfgpin(S3C64XX_GPB(1),S3C64XX_GPB1_UART_TXD2);
s3c_gpio_setpull(S3C64XX_GPB(1), S3C_GPIO_PULL_DOWN);
break;
case 3:
printk("UART 3 is used as I2C bus in M8\n");
break;
default:
printk("Unknown UART port ID\n");
break;
}
}
