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path: root/drivers/serial/mxs-auart.c
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Diffstat (limited to 'drivers/serial/mxs-auart.c')
-rw-r--r--drivers/serial/mxs-auart.c163
1 files changed, 0 insertions, 163 deletions
diff --git a/drivers/serial/mxs-auart.c b/drivers/serial/mxs-auart.c
index 63d7d9128efc..0791af105f72 100644
--- a/drivers/serial/mxs-auart.c
+++ b/drivers/serial/mxs-auart.c
@@ -19,7 +19,6 @@
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>
-#include <linux/console.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -48,8 +47,6 @@
#define MXS_AUART_MAJOR 242
#define MXS_AUART_RX_THRESHOLD 16
-static struct uart_driver auart_driver;
-
struct mxs_auart_port {
struct uart_port port;
@@ -788,160 +785,7 @@ static struct uart_ops mxs_auart_ops = {
.config_port = mxs_auart_config_port,
.verify_port = mxs_auart_verify_port,
};
-#ifdef CONFIG_SERIAL_MXS_AUART_CONSOLE
-static struct mxs_auart_port auart_port[CONFIG_MXS_AUART_PORTS] = {};
-
-static void
-auart_console_write(struct console *co, const char *s, unsigned int count)
-{
- struct uart_port *port;
- unsigned int status, old_cr;
- int i;
-
- if (co->index > CONFIG_MXS_AUART_PORTS || co->index < 0)
- return;
- port = &auart_port[co->index].port;
-
- /* First save the CR then disable the interrupts */
- old_cr = __raw_readl(port->membase + HW_UARTAPP_CTRL2);
- __raw_writel(BM_UARTAPP_CTRL2_UARTEN | BM_UARTAPP_CTRL2_TXE,
- port->membase + HW_UARTAPP_CTRL2_SET);
-
- /* Now, do each character */
- for (i = 0; i < count; i++) {
- do {
- status = __raw_readl(port->membase + HW_UARTAPP_STAT);
- } while (status & BM_UARTAPP_STAT_TXFF);
-
- __raw_writel(s[i], port->membase + HW_UARTAPP_DATA);
- if (s[i] == '\n') {
- do {
- status = __raw_readl(port->membase +
- HW_UARTAPP_STAT);
- } while (status & BM_UARTAPP_STAT_TXFF);
- __raw_writel('\r', port->membase + HW_UARTAPP_DATA);
- }
- }
-
- /*
- * Finally, wait for transmitter to become empty
- * and restore the TCR
- */
- do {
- status = __raw_readl(port->membase + HW_UARTAPP_STAT);
- } while (status & BM_UARTAPP_STAT_BUSY);
- __raw_writel(old_cr, port->membase + HW_UARTAPP_CTRL2);
-}
-
-static void __init
-auart_console_get_options(struct uart_port *port, int *baud,
- int *parity, int *bits)
-{
- if (__raw_readl(port->membase + HW_UARTAPP_CTRL2)
- & BM_UARTAPP_CTRL2_UARTEN) {
- unsigned int lcr_h, quot;
- lcr_h = __raw_readl(port->membase + HW_UARTAPP_LINECTRL);
-
- *parity = 'n';
- if (lcr_h & BM_UARTAPP_LINECTRL_PEN) {
- if (lcr_h & BM_UARTAPP_LINECTRL_EPS)
- *parity = 'e';
- else
- *parity = 'o';
- }
-
- if ((lcr_h & BM_UARTAPP_LINECTRL_WLEN)
- == BF_UARTAPP_LINECTRL_WLEN(2))
- *bits = 7;
- else
- *bits = 8;
-
- quot = (((__raw_readl(port->membase + HW_UARTAPP_LINECTRL)
- & BM_UARTAPP_LINECTRL_BAUD_DIVINT))
- >> (BP_UARTAPP_LINECTRL_BAUD_DIVINT - 6))
- | (((__raw_readl(port->membase + HW_UARTAPP_LINECTRL)
- & BM_UARTAPP_LINECTRL_BAUD_DIVFRAC))
- >> BP_UARTAPP_LINECTRL_BAUD_DIVFRAC);
- if (quot == 0)
- quot = 1;
- *baud = (port->uartclk << 2) / quot;
- }
-}
-
-static int __init auart_console_setup(struct console *co, char *options)
-{
- struct mxs_auart_port *port;
- int baud = 115200;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
- /*
- * Check whether an invalid uart number has been specified, and
- * if so, search for the first available port that does have
- * console support.
- */
- if (co->index > CONFIG_MXS_AUART_PORTS || co->index < 0)
- return -EINVAL;
-
- port = &auart_port[co->index].port;
-
- if (port->port.membase == 0) {
- if (cpu_is_mx23()) {
- if (co->index == 1) {
- port->port.membase = IO_ADDRESS(0x8006C000);
- port->port.mapbase = 0x8006C000;
- } else {
- port->port.membase = IO_ADDRESS(0x8006E000);
- port->port.mapbase = 0x8006E000;
- }
- }
-
- port->port.fifosize = 16;
- port->port.ops = &mxs_auart_ops;
- port->port.flags = ASYNC_BOOT_AUTOCONF;
- port->port.line = 0;
- }
- mxs_auart_reset(port);
-
- __raw_writel(BM_UARTAPP_CTRL2_UARTEN,
- port->port.membase + HW_UARTAPP_CTRL2_SET);
-
- if (port->clk == NULL || IS_ERR(port->clk)) {
- port->clk = clk_get(NULL, "uart");
- if (port->clk == NULL || IS_ERR(port->clk))
- return -ENODEV;
- port->port.uartclk = clk_get_rate(port->clk);
- }
-
- if (options)
- uart_parse_options(options, &baud, &parity, &bits, &flow);
- else
- auart_console_get_options(port, &baud, &parity, &bits);
- return uart_set_options(port, co, baud, parity, bits, flow);
-}
-
-static struct console auart_console = {
- .name = "ttySP",
- .write = auart_console_write,
- .device = uart_console_device,
- .setup = auart_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &auart_driver,
-};
-
-#ifdef CONFIG_MXS_EARLY_CONSOLE
-static int __init auart_console_init(void)
-{
- register_console(&auart_console);
- return 0;
-}
-
-console_initcall(auart_console_init);
-#endif
-
-#endif
static struct uart_driver auart_driver = {
.owner = THIS_MODULE,
.driver_name = "auart",
@@ -949,9 +793,6 @@ static struct uart_driver auart_driver = {
.major = MXS_AUART_MAJOR,
.minor = 0,
.nr = CONFIG_MXS_AUART_PORTS,
-#ifdef CONFIG_SERIAL_MXS_AUART_CONSOLE
- .cons = &auart_console,
-#endif
};
static int __devinit mxs_auart_probe(struct platform_device *pdev)
@@ -1032,10 +873,6 @@ static int __devinit mxs_auart_probe(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 1);
-#ifdef CONFIG_SERIAL_MXS_AUART_CONSOLE
- memcpy(&auart_port[pdev->id], s, sizeof(struct mxs_auart_port));
-#endif
-
ret = uart_add_one_port(&auart_driver, &s->port);
if (ret)
goto out_free_clk;