static int __init mxc_early_uart_setup(struct console *console, char *options)
{
struct mxc_early_uart_device *device = &mxc_early_device;
struct uart_port *port = &device->port;
int length;
if (device->port.membase || device->port.iobase)
return -ENODEV;
/* Enable Early MXC UART Clock */
clk_enable(device->clk);
port->uartclk = 5600000;
port->iotype = UPIO_MEM;
port->membase = ioremap(port->mapbase, SZ_4K);
if (options) {
device->baud = simple_strtoul(options, NULL, 0);
length = min(strlen(options), sizeof(device->options));
strncpy(device->options, options, length);
} else {
device->baud = probe_baud(port);
snprintf(device->options, sizeof(device->options), "%u",
device->baud);
}
printk(KERN_INFO
"MXC_Early serial console at MMIO 0x%x (options '%s')\n",
port->mapbase, device->options);
return 0;
}
static int __init parse_options(struct mxc_early_uart_device *device,
char *options)
{
struct uart_port *port = &device->port;
int mapsize = 64;
int length;
if (!options)
return -ENODEV;
port->uartclk = 5600000;
port->iotype = UPIO_MEM;
port->mapbase = simple_strtoul(options, &options, 0);
port->membase = ioremap(port->mapbase, mapsize);
if ((options = strchr(options, ','))) {
options++;
device->baud = simple_strtoul(options, NULL, 0);
length = min(strcspn(options, " "), sizeof(device->options));
strncpy(device->options, options, length);
} else {
device->baud = probe_baud(port);
snprintf(device->options, sizeof(device->options), "%u",
device->baud);
}
printk(KERN_INFO
"MXC_Early serial console at MMIO 0x%lx (options '%s')\n",
port->mapbase, device->options);
return 0;
}
static void parse_console_uart8250(void)
{
char optstr[64], *options;
int baud = DEFAULT_BAUD;
int port = 0;
/*
* console=uart8250,io,0x3f8,115200n8
* need to make sure it is last one console !
*/
if (cmdline_find_option("console", optstr, sizeof optstr) <= 0)
return;
options = optstr;
if (!strncmp(options, "uart8250,io,", 12))
port = simple_strtoull(options + 12, &options, 0);
else if (!strncmp(options, "uart,io,", 8))
port = simple_strtoull(options + 8, &options, 0);
else
return;
if (options && (options[0] == ','))
baud = simple_strtoull(options + 1, &options, 0);
else
baud = probe_baud(port);
if (port)
early_serial_init(port, baud);
}
static int __init parse_options(struct early_serial8250_device *device,
char *options)
{
struct uart_port *port = &device->port;
int mmio, length;
if (!options)
return -ENODEV;
port->uartclk = BASE_BAUD * 16;
if (!strncmp(options, "mmio,", 5)) {
port->iotype = UPIO_MEM;
port->mapbase = simple_strtoul(options + 5, &options, 0);
#ifdef CONFIG_FIX_EARLYCON_MEM
set_fixmap_nocache(FIX_EARLYCON_MEM_BASE,
port->mapbase & PAGE_MASK);
port->membase =
(void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
port->membase += port->mapbase & ~PAGE_MASK;
#else
port->membase = ioremap_nocache(port->mapbase, 64);
if (!port->membase) {
printk(KERN_ERR "%s: Couldn't ioremap 0x%llx\n",
__func__,
(unsigned long long)port->mapbase);
return -ENOMEM;
}
#endif
mmio = 1;
} else if (!strncmp(options, "io,", 3)) {
port->iotype = UPIO_PORT;
port->iobase = simple_strtoul(options + 3, &options, 0);
mmio = 0;
} else
return -EINVAL;
options = strchr(options, ',');
if (options) {
options++;
device->baud = simple_strtoul(options, NULL, 0);
length = min(strcspn(options, " "), sizeof(device->options));
strncpy(device->options, options, length);
} else {
device->baud = probe_baud(port);
snprintf(device->options, sizeof(device->options), "%u",
device->baud);
}
printk(KERN_INFO "Early serial console at %s 0x%llx (options '%s')\n",
mmio ? "MMIO" : "I/O port",
mmio ? (unsigned long long) port->mapbase
: (unsigned long long) port->iobase,
device->options);
return 0;
}
static int __init early_serial8250_setup(struct earlycon_device *device,
const char *options)
{
if (!(device->port.membase || device->port.iobase))
return 0;
if (!device->baud) {
device->baud = probe_baud(&device->port);
snprintf(device->options, sizeof(device->options), "%u",
device->baud);
}
init_port(device);
early_device = device;
device->con->write = early_serial8250_write;
return 0;
}
static int __init parse_options(struct early_uart_device *device, char *options)
{
struct uart_port *port = &device->port;
int mapsize = 64;
int mmio, length;
if (!options)
return -ENODEV;
port->uartclk = BASE_BAUD * 16;
if (!strncmp(options, "mmio,", 5)) {
port->iotype = UPIO_MEM;
port->mapbase = simple_strtoul(options + 5, &options, 0);
port->membase = ioremap(port->mapbase, mapsize);
if (!port->membase) {
printk(KERN_ERR "%s: Couldn't ioremap 0x%lx\n",
__FUNCTION__, port->mapbase);
return -ENOMEM;
}
mmio = 1;
} else if (!strncmp(options, "io,", 3)) {
port->iotype = UPIO_PORT;
port->iobase = simple_strtoul(options + 3, &options, 0);
mmio = 0;
} else
return -EINVAL;
if ((options = strchr(options, ','))) {
options++;
device->baud = simple_strtoul(options, NULL, 0);
length = min(strcspn(options, " "), sizeof(device->options));
strncpy(device->options, options, length);
} else {
device->baud = probe_baud(port);
snprintf(device->options, sizeof(device->options), "%u",
device->baud);
}
printk(KERN_INFO "Early serial console at %s 0x%lx (options '%s')\n",
mmio ? "MMIO" : "I/O port",
mmio ? port->mapbase : (unsigned long) port->iobase,
device->options);
return 0;
}
