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authorJohn Crispin <john@openwrt.org>2012-08-03 08:53:02 +0000
committerJohn Crispin <john@openwrt.org>2012-08-03 08:53:02 +0000
commit060b161ca6f18e0e022da1483723ad2e9335bca7 (patch)
treedc652c26bed4d4b79395a6daafaa5da59000e940 /target/linux/lantiq/patches-3.3/0012-tty-support.patch
parent162e272b4b2b770cd5eb97006bb4ff99b09bd8de (diff)
downloadupstream-060b161ca6f18e0e022da1483723ad2e9335bca7.tar.gz
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cleanup patches
SVN-Revision: 32953
Diffstat (limited to 'target/linux/lantiq/patches-3.3/0012-tty-support.patch')
-rw-r--r--target/linux/lantiq/patches-3.3/0012-tty-support.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.3/0012-tty-support.patch b/target/linux/lantiq/patches-3.3/0012-tty-support.patch
new file mode 100644
index 0000000000..52bd9de87c
--- /dev/null
+++ b/target/linux/lantiq/patches-3.3/0012-tty-support.patch
@@ -0,0 +1,90 @@
+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 = &ltq_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
+