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ARM: iPAQ: move serial port support functions

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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>
This commit is contained in:
Russell King 2009-10-06 15:16:27 +01:00
parent 9c196f0f8d
commit 6e21ee6aa7
2 changed files with 52 additions and 26 deletions
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64
arch/arm/mach-sa1100/h3600.c
View file

@ -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);
}

14
arch/arm/mach-sa1100/include/mach/h3600_gpio.h
View file

@ -23,6 +23,20 @@
#ifndef _INCLUDE_H3600_GPIO_H_
#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