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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-10-06 15:16:27 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-12-06 16:52:24 +0000
commit6e21ee6aa76df6297e6dcea22d6583cafdb669f7 (patch)
tree52b7fbf09fed5b0e903cf61fd3c2111ce3a41118 /arch/arm/mach-sa1100
parent9c196f0f8db928ef9a2a935d86d75a218a7131b1 (diff)
downloadlinux-2.6.34-ux500-6e21ee6aa76df6297e6dcea22d6583cafdb669f7.tar.gz
ARM: iPAQ: move serial port support functions
No point calling sa1100_register_uart_fns early - these aren't used until late in the boot sequence. Also convert to gpiolib support. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100')
-rw-r--r--arch/arm/mach-sa1100/h3600.c64
-rw-r--r--arch/arm/mach-sa1100/include/mach/h3600_gpio.h14
2 files changed, 52 insertions, 26 deletions
diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c
index c53ad651835..8a6a0e744db 100644
--- a/arch/arm/mach-sa1100/h3600.c
+++ b/arch/arm/mach-sa1100/h3600.c
@@ -91,6 +91,9 @@ static void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
}
+/*
+ * H3xxx flash support
+ */
static struct mtd_partition h3xxx_partitions[] = {
{
.name = "H3XXX boot firmware",
@@ -122,42 +125,35 @@ static struct resource h3xxx_flash_resource = {
.flags = IORESOURCE_MEM,
};
-static void h3xxx_mach_init(void)
-{
- sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
-}
/*
- * low-level UART features
+ * H3xxx uart support
*/
-
-static void h3600_uart_set_mctrl(struct uart_port *port, u_int mctrl)
+static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
{
if (port->mapbase == _Ser3UTCR0) {
- if (mctrl & TIOCM_RTS)
- GPCR = GPIO_H3600_COM_RTS;
- else
- GPSR = GPIO_H3600_COM_RTS;
+ gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
}
}
-static u_int h3600_uart_get_mctrl(struct uart_port *port)
+static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
{
u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
if (port->mapbase == _Ser3UTCR0) {
- int gplr = GPLR;
- /* DCD and CTS bits are inverted in GPLR by RS232 transceiver */
- if (gplr & GPIO_H3600_COM_DCD)
+ /*
+ * DCD and CTS bits are inverted in GPLR by RS232 transceiver
+ */
+ if (gpio_get_value(H3XXX_GPIO_COM_DCD))
ret &= ~TIOCM_CD;
- if (gplr & GPIO_H3600_COM_CTS)
+ if (gpio_get_value(H3XXX_GPIO_COM_CTS))
ret &= ~TIOCM_CTS;
}
return ret;
}
-static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
{
if (port->mapbase == _Ser2UTCR0) { /* TODO: REMOVE THIS */
assign_h3600_egpio(IPAQ_EGPIO_IR_ON, !state);
@@ -170,7 +166,7 @@ static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
* Enable/Disable wake up events for this serial port.
* Obviously, we only support this on the normal COM port.
*/
-static int h3600_uart_set_wake(struct uart_port *port, u_int enable)
+static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
{
int err = -EINVAL;
@@ -184,13 +180,20 @@ static int h3600_uart_set_wake(struct uart_port *port, u_int enable)
return err;
}
-static struct sa1100_port_fns h3600_port_fns __initdata = {
- .set_mctrl = h3600_uart_set_mctrl,
- .get_mctrl = h3600_uart_get_mctrl,
- .pm = h3600_uart_pm,
- .set_wake = h3600_uart_set_wake,
+static struct sa1100_port_fns h3xxx_port_fns __initdata = {
+ .set_mctrl = h3xxx_uart_set_mctrl,
+ .get_mctrl = h3xxx_uart_get_mctrl,
+ .pm = h3xxx_uart_pm,
+ .set_wake = h3xxx_uart_set_wake,
};
+
+static void h3xxx_mach_init(void)
+{
+ sa1100_register_uart_fns(&h3xxx_port_fns);
+ sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
+}
+
/*
* helper for sa1100fb
*/
@@ -227,7 +230,6 @@ static void __init h3xxx_map_io(void)
sa1100_map_io();
iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
- sa1100_register_uart_fns(&h3600_port_fns);
sa1100_register_uart(0, 3); /* Common serial port */
// sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */
@@ -329,7 +331,7 @@ static void __init h3100_map_io(void)
/* Initialize h3100-specific values here */
GPCR = 0x0fffffff; /* All outputs are set low by default */
- GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK |
+ GPDR = GPIO_H3600_L3_CLOCK |
GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA |
GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
H3100_DIRECT_EGPIO;
@@ -364,6 +366,9 @@ static struct irda_platform_data h3100_irda_data = {
static struct gpio_default_state h3100_default_gpio[] = {
{ H3100_GPIO_IR_ON, GPIO_MODE_OUT0, "IrDA power" },
{ H3100_GPIO_IR_FSEL, GPIO_MODE_OUT0, "IrDA fsel" },
+ { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
+ { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
+ { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
};
static void h3100_mach_init(void)
@@ -460,7 +465,7 @@ static void __init h3600_map_io(void)
/* Initialize h3600-specific values here */
GPCR = 0x0fffffff; /* All outputs are set low by default */
- GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK |
+ GPDR = GPIO_H3600_L3_CLOCK |
GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA |
GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 |
@@ -489,8 +494,15 @@ static struct irda_platform_data h3600_irda_data = {
.set_speed = h3600_irda_set_speed,
};
+static struct gpio_default_state h3600_default_gpio[] = {
+ { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
+ { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
+ { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
+};
+
static void h3600_mach_init(void)
{
+ h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
h3xxx_mach_init();
sa11x0_register_irda(&h3600_irda_data);
}
diff --git a/arch/arm/mach-sa1100/include/mach/h3600_gpio.h b/arch/arm/mach-sa1100/include/mach/h3600_gpio.h
index d4d0b22d019..18de674af56 100644
--- a/arch/arm/mach-sa1100/include/mach/h3600_gpio.h
+++ b/arch/arm/mach-sa1100/include/mach/h3600_gpio.h
@@ -24,6 +24,20 @@
#define _INCLUDE_H3600_GPIO_H_
/*
+ * gpiolib numbers for all iPAQs
+ */
+#define H3XXX_GPIO_PWR_BUTTON 0
+#define H3XXX_GPIO_PCMCIA_CD1 10
+#define H3XXX_GPIO_PCMCIA_IRQ1 11
+#define H3XXX_GPIO_PCMCIA_CD0 17
+#define H3XXX_GPIO_SYS_CLK 19
+#define H3XXX_GPIO_PCMCIA_IRQ0 21
+#define H3XXX_GPIO_COM_DCD 23
+#define H3XXX_GPIO_OPTION 24
+#define H3XXX_GPIO_COM_CTS 25
+#define H3XXX_GPIO_COM_RTS 26
+
+/*
* GPIO lines that are common across ALL iPAQ models are in "h3600.h"
* This file contains machine-specific definitions
*/