1/* 2 * Freescale STMP37XX development board support 3 * 4 * Embedded Alley Solutions, Inc <source@embeddedalley.com> 5 * 6 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. 7 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. 8 */ 9 10/* 11 * The code contained herein is licensed under the GNU General Public 12 * License. You may obtain a copy of the GNU General Public License 13 * Version 2 or later at the following locations: 14 * 15 * http://www.opensource.org/licenses/gpl-license.html 16 * http://www.gnu.org/copyleft/gpl.html 17 */ 18#include <linux/kernel.h> 19#include <linux/init.h> 20#include <linux/device.h> 21#include <linux/platform_device.h> 22#include <asm/setup.h> 23#include <asm/mach-types.h> 24#include <asm/mach/arch.h> 25 26#include <mach/stmp3xxx.h> 27#include <mach/pins.h> 28#include <mach/pinmux.h> 29#include "stmp37xx.h" 30 31/* 32 * List of STMP37xx development board specific devices 33 */ 34static struct platform_device *stmp37xx_devb_devices[] = { 35 &stmp3xxx_dbguart, 36 &stmp3xxx_appuart, 37}; 38 39static struct pin_desc dbguart_pins_0[] = { 40 { PINID_PWM0, PIN_FUN3, }, 41 { PINID_PWM1, PIN_FUN3, }, 42}; 43 44struct pin_desc appuart_pins_0[] = { 45 { PINID_UART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, }, 46 { PINID_UART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, }, 47 { PINID_UART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, }, 48 { PINID_UART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, }, 49}; 50 51static struct pin_group appuart_pins[] = { 52 [0] = { 53 .pins = appuart_pins_0, 54 .nr_pins = ARRAY_SIZE(appuart_pins_0), 55 }, 56 /* 37xx has the only app uart */ 57}; 58 59static struct pin_group dbguart_pins[] = { 60 [0] = { 61 .pins = dbguart_pins_0, 62 .nr_pins = ARRAY_SIZE(dbguart_pins_0), 63 }, 64}; 65 66static int dbguart_pins_control(int id, int request) 67{ 68 int r = 0; 69 70 if (request) 71 r = stmp3xxx_request_pin_group(&dbguart_pins[id], "debug uart"); 72 else 73 stmp3xxx_release_pin_group(&dbguart_pins[id], "debug uart"); 74 return r; 75} 76 77 78static void __init stmp37xx_devb_init(void) 79{ 80 stmp3xxx_pinmux_init(NR_REAL_IRQS); 81 82 /* Init STMP3xxx platform */ 83 stmp3xxx_init(); 84 85 stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control; 86 stmp3xxx_appuart.dev.platform_data = appuart_pins; 87 88 /* Add STMP37xx development board devices */ 89 platform_add_devices(stmp37xx_devb_devices, 90 ARRAY_SIZE(stmp37xx_devb_devices)); 91} 92 93MACHINE_START(STMP37XX, "STMP37XX") 94 .phys_io = 0x80000000, 95 .io_pg_offst = ((0xf0000000) >> 18) & 0xfffc, 96 .boot_params = 0x40000100, 97 .map_io = stmp37xx_map_io, 98 .init_irq = stmp37xx_init_irq, 99 .timer = &stmp3xxx_timer, 100 .init_machine = stmp37xx_devb_init, 101MACHINE_END 102