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authorPaul Mundt <lethal@linux-sh.org>2008-10-02 19:14:11 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-10-02 19:14:11 +0900
commitbc0f424faa11a2017ba725bb8c5fc481ece7b440 (patch)
treee6272f37806941443f1ead19f965e8eeb531282c /drivers/serial/sh-sci.c
parenta2159b52219870553fd67e6456f41cd5225c46c6 (diff)
parent225c9a8d1da274bf23efec43ec28b1c9e45e12f8 (diff)
Merge branch 'sh/g3-prep'
Diffstat (limited to 'drivers/serial/sh-sci.c')
-rw-r--r--drivers/serial/sh-sci.c45
1 files changed, 33 insertions, 12 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 5bb57154855..3b9d2d83b59 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -3,7 +3,7 @@
*
* SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
*
- * Copyright (C) 2002 - 2006 Paul Mundt
+ * Copyright (C) 2002 - 2008 Paul Mundt
* Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Jul 2007).
*
* based off of the old drivers/char/sh-sci.c by:
@@ -46,6 +46,7 @@
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/ctype.h>
+#include <linux/err.h>
#ifdef CONFIG_SUPERH
#include <asm/clock.h>
@@ -1132,12 +1133,16 @@ static void sci_config_port(struct uart_port *port, int flags)
break;
}
-#if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
- if (port->mapbase == 0)
+ if (port->flags & UPF_IOREMAP && !port->membase) {
+#if defined(CONFIG_SUPERH64)
port->mapbase = onchip_remap(SCIF_ADDR_SH5, 1024, "SCIF");
-
- port->membase = (void __iomem *)port->mapbase;
+ port->membase = (void __iomem *)port->mapbase;
+#else
+ port->membase = ioremap_nocache(port->mapbase, 0x40);
#endif
+
+ printk(KERN_ERR "sci: can't remap port#%d\n", port->line);
+ }
}
static int sci_verify_port(struct uart_port *port, struct serial_struct *ser)
@@ -1423,7 +1428,7 @@ static struct uart_driver sci_uart_driver = {
static int __devinit sci_probe(struct platform_device *dev)
{
struct plat_sci_port *p = dev->dev.platform_data;
- int i;
+ int i, ret = -EINVAL;
for (i = 0; p && p->flags != 0; p++, i++) {
struct sci_port *sciport = &sci_ports[i];
@@ -1440,12 +1445,22 @@ static int __devinit sci_probe(struct platform_device *dev)
sciport->port.mapbase = p->mapbase;
- /*
- * For the simple (and majority of) cases where we don't need
- * to do any remapping, just cast the cookie directly.
- */
- if (p->mapbase && !p->membase && !(p->flags & UPF_IOREMAP))
- p->membase = (void __iomem *)p->mapbase;
+ if (p->mapbase && !p->membase) {
+ if (p->flags & UPF_IOREMAP) {
+ p->membase = ioremap_nocache(p->mapbase, 0x40);
+ if (IS_ERR(p->membase)) {
+ ret = PTR_ERR(p->membase);
+ goto err_unreg;
+ }
+ } else {
+ /*
+ * For the simple (and majority of) cases
+ * where we don't need to do any remapping,
+ * just cast the cookie directly.
+ */
+ p->membase = (void __iomem *)p->mapbase;
+ }
+ }
sciport->port.membase = p->membase;
@@ -1476,6 +1491,12 @@ static int __devinit sci_probe(struct platform_device *dev)
#endif
return 0;
+
+err_unreg:
+ for (i = i - 1; i >= 0; i--)
+ uart_remove_one_port(&sci_uart_driver, &sci_ports[i].port);
+
+ return ret;
}
static int __devexit sci_remove(struct platform_device *dev)