You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.6 KiB
Diff
91 lines
2.6 KiB
Diff
From 3b11721314a100e40634a80062d0d2cce1dc83dc Mon Sep 17 00:00:00 2001
|
|
From: John Crispin <blogic@openwrt.org>
|
|
Date: Fri, 3 Aug 2012 09:54:27 +0200
|
|
Subject: [PATCH 12/25] tty support
|
|
|
|
---
|
|
drivers/tty/serial/lantiq.c | 25 +++++++++++++++++++++----
|
|
1 files changed, 21 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
|
|
index 96c1cac..82956de 100644
|
|
--- a/drivers/tty/serial/lantiq.c
|
|
+++ b/drivers/tty/serial/lantiq.c
|
|
@@ -107,6 +107,9 @@
|
|
#define ASCFSTAT_TXFREEMASK 0x3F000000
|
|
#define ASCFSTAT_TXFREEOFF 24
|
|
|
|
+#define MUXC_SIF_RX_PIN 112
|
|
+#define MUXC_SIF_TX_PIN 113
|
|
+
|
|
static void lqasc_tx_chars(struct uart_port *port);
|
|
static struct ltq_uart_port *lqasc_port[MAXPORTS];
|
|
static struct uart_driver lqasc_reg;
|
|
@@ -114,6 +117,7 @@ static DEFINE_SPINLOCK(ltq_asc_lock);
|
|
|
|
struct ltq_uart_port {
|
|
struct uart_port port;
|
|
+ struct clk *fpiclk;
|
|
struct clk *clk;
|
|
unsigned int tx_irq;
|
|
unsigned int rx_irq;
|
|
@@ -316,7 +320,7 @@ lqasc_startup(struct uart_port *port)
|
|
struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
|
|
int retval;
|
|
|
|
- port->uartclk = clk_get_rate(ltq_port->clk);
|
|
+ port->uartclk = clk_get_rate(ltq_port->fpiclk);
|
|
|
|
ltq_w32_mask(ASCCLC_DISS | ASCCLC_RMCMASK, (1 << ASCCLC_RMCOFFSET),
|
|
port->membase + LTQ_ASC_CLC);
|
|
@@ -529,6 +533,19 @@ lqasc_request_port(struct uart_port *port)
|
|
if (port->membase == NULL)
|
|
return -ENOMEM;
|
|
}
|
|
+ if (ltq_is_falcon() && (port->line == 1)) {
|
|
+ struct ltq_uart_port *ltq_port = lqasc_port[pdev->id];
|
|
+ if (ltq_gpio_request(&pdev->dev, MUXC_SIF_RX_PIN,
|
|
+ 3, 0, "asc1-rx"))
|
|
+ return -EBUSY;
|
|
+ if (ltq_gpio_request(&pdev->dev, MUXC_SIF_TX_PIN,
|
|
+ 3, 1, "asc1-tx"))
|
|
+ return -EBUSY;
|
|
+ ltq_port->clk = clk_get(&pdev->dev, NULL);
|
|
+ if (IS_ERR(ltq_port->clk))
|
|
+ return PTR_ERR(ltq_port->clk);
|
|
+ clk_enable(ltq_port->clk);
|
|
+ }
|
|
return 0;
|
|
}
|
|
|
|
@@ -630,7 +647,7 @@ lqasc_console_setup(struct console *co, char *options)
|
|
|
|
port = <q_port->port;
|
|
|
|
- port->uartclk = clk_get_rate(ltq_port->clk);
|
|
+ port->uartclk = clk_get_rate(ltq_port->fpiclk);
|
|
|
|
if (options)
|
|
uart_parse_options(options, &baud, &parity, &bits, &flow);
|
|
@@ -686,7 +703,7 @@ lqasc_probe(struct platform_device *pdev)
|
|
if (lqasc_port[pdev->id] != NULL)
|
|
return -EBUSY;
|
|
|
|
- clk = clk_get(&pdev->dev, "fpi");
|
|
+ clk = clk_get_fpi();
|
|
if (IS_ERR(clk)) {
|
|
pr_err("failed to get fpi clk\n");
|
|
return -ENOENT;
|
|
@@ -715,7 +732,7 @@ lqasc_probe(struct platform_device *pdev)
|
|
port->irq = tx_irq; /* unused, just to be backward-compatibe */
|
|
port->mapbase = mmres->start;
|
|
|
|
- ltq_port->clk = clk;
|
|
+ ltq_port->fpiclk = clk;
|
|
|
|
ltq_port->tx_irq = tx_irq;
|
|
ltq_port->rx_irq = rx_irq;
|
|
--
|
|
1.7.9.1
|
|
|