100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*
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* Freescale STMP37XX development board support
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*
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* Embedded Alley Solutions, Inc <source@embeddedalley.com>
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*
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* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
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*/
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/*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/stmp3xxx.h>
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#include <mach/pins.h>
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#include <mach/pinmux.h>
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#include "stmp37xx.h"
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/*
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* List of STMP37xx development board specific devices
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*/
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static struct platform_device *stmp37xx_devb_devices[] = {
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&stmp3xxx_dbguart,
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&stmp3xxx_appuart,
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};
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static struct pin_desc dbguart_pins_0[] = {
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{ PINID_PWM0, PIN_FUN3, },
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{ PINID_PWM1, PIN_FUN3, },
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};
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struct pin_desc appuart_pins_0[] = {
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{ PINID_UART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
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{ PINID_UART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
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{ PINID_UART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
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{ PINID_UART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
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};
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static struct pin_group appuart_pins[] = {
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[0] = {
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.pins = appuart_pins_0,
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.nr_pins = ARRAY_SIZE(appuart_pins_0),
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},
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/* 37xx has the only app uart */
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};
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static struct pin_group dbguart_pins[] = {
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[0] = {
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.pins = dbguart_pins_0,
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.nr_pins = ARRAY_SIZE(dbguart_pins_0),
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},
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};
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static int dbguart_pins_control(int id, int request)
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{
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int r = 0;
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if (request)
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r = stmp3xxx_request_pin_group(&dbguart_pins[id], "debug uart");
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else
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stmp3xxx_release_pin_group(&dbguart_pins[id], "debug uart");
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return r;
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}
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static void __init stmp37xx_devb_init(void)
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{
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stmp3xxx_pinmux_init(NR_REAL_IRQS);
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/* Init STMP3xxx platform */
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stmp3xxx_init();
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stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
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stmp3xxx_appuart.dev.platform_data = appuart_pins;
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/* Add STMP37xx development board devices */
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platform_add_devices(stmp37xx_devb_devices,
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ARRAY_SIZE(stmp37xx_devb_devices));
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}
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MACHINE_START(STMP37XX, "STMP37XX")
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.boot_params = 0x40000100,
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.map_io = stmp37xx_map_io,
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.init_irq = stmp37xx_init_irq,
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.timer = &stmp3xxx_timer,
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.init_machine = stmp37xx_devb_init,
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MACHINE_END
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