Subject: [@num@/@total@] i.MX2 family: Add basic device support From: Juergen Beisert This patch adds a few on-chip devices for i.MX21/i.MX27 procesors. Signed-off-by: Juergen Beisert --- arch/arm/mach-mx2/Makefile | 2 arch/arm/mach-mx2/devices.c | 189 ++++++++++++++++++++++++++++++++++++++++++++ arch/arm/mach-mx2/devices.h | 27 ++++++ 3 files changed, 217 insertions(+), 1 deletion(-) Index: linux-2.6/arch/arm/mach-mx2/devices.c =================================================================== --- /dev/null +++ linux-2.6/arch/arm/mach-mx2/devices.c @@ -0,0 +1,189 @@ +/* + * Author: MontaVista Software, Inc. + * + * + * Based on the OMAP devices.c + * + * 2005 (c) MontaVista Software, Inc. This file is licensed under the + * terms of the GNU General Public License version 2. This program is + * licensed "as is" without any warranty of any kind, whether express + * or implied. + * + * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2008 Juergen Beisert, kernel@pengutronix.de + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include +#include +#include +#include + +#include + +/* + * Resource definition for the MXC IrDA + */ +static struct resource mxc_irda_resources[] = { + [0] = { + .start = UART3_BASE_ADDR, + .end = UART3_BASE_ADDR + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = INT_UART3, + .end = INT_UART3, + .flags = IORESOURCE_IRQ, + }, +}; + +/* Platform Data for MXC IrDA */ +struct platform_device mxc_irda_device = { + .name = "mxc_irda", + .id = 0, + .num_resources = ARRAY_SIZE(mxc_irda_resources), + .resource = mxc_irda_resources, +}; + +/* + * General Purpose Timer + * - i.MX1: 2 timer (slighly different register handling) + * - i.MX21: 3 timer + * - i.MX27: 6 timer + */ + +/* We use gpt0 as system timer, so do not add a device for this one */ + +static struct resource timer1_resources[] = { + [0] = { + .start = GPT2_BASE_ADDR, + .end = GPT2_BASE_ADDR + 0x17, + .flags = IORESOURCE_MEM + }, + [1] = { + .start = INT_GPT2, + .end = INT_GPT2, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device mxc_gpt1 = { + .name = "imx_gpt", + .id = 1, + .num_resources = ARRAY_SIZE(timer1_resources), + .resource = timer1_resources +}; + +static struct resource timer2_resources[] = { + [0] = { + .start = GPT3_BASE_ADDR, + .end = GPT3_BASE_ADDR + 0x17, + .flags = IORESOURCE_MEM + }, + [1] = { + .start = INT_GPT3, + .end = INT_GPT3, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device mxc_gpt2 = { + .name = "imx_gpt", + .id = 2, + .num_resources = ARRAY_SIZE(timer2_resources), + .resource = timer2_resources +}; + +#ifdef CONFIG_MACH_MX27 +static struct resource timer3_resources[] = { + [0] = { + .start = GPT4_BASE_ADDR, + .end = GPT4_BASE_ADDR + 0x17, + .flags = IORESOURCE_MEM + }, + [1] = { + .start = INT_GPT4, + .end = INT_GPT4, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device mxc_gpt3 = { + .name = "imx_gpt", + .id = 3, + .num_resources = ARRAY_SIZE(timer3_resources), + .resource = timer3_resources +}; + +static struct resource timer4_resources[] = { + [0] = { + .start = GPT5_BASE_ADDR, + .end = GPT5_BASE_ADDR + 0x17, + .flags = IORESOURCE_MEM + }, + [1] = { + .start = INT_GPT5, + .end = INT_GPT5, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device mxc_gpt4 = { + .name = "imx_gpt", + .id = 4, + .num_resources = ARRAY_SIZE(timer4_resources), + .resource = timer4_resources +}; + +static struct resource timer5_resources[] = { + [0] = { + .start = GPT6_BASE_ADDR, + .end = GPT6_BASE_ADDR + 0x17, + .flags = IORESOURCE_MEM + }, + [1] = { + .start = INT_GPT6, + .end = INT_GPT6, + .flags = IORESOURCE_IRQ, + } +}; + +struct platform_device mxc_gpt5 = { + .name = "imx_gpt", + .id = 5, + .num_resources = ARRAY_SIZE(timer5_resources), + .resource = timer5_resources +}; +#endif + +/* + * Watchdog: + * - i.MX1 + * - i.MX21 + * - i.MX27 + */ +static struct resource mxc_wdt_resources[] = { + { + .start = WDOG_BASE_ADDR, + .end = WDOG_BASE_ADDR + 0x30, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device mxc_wdt = { + .name = "mxc_wdt", + .id = 0, + .num_resources = ARRAY_SIZE(mxc_wdt_resources), + .resource = mxc_wdt_resources, +}; Index: linux-2.6/arch/arm/mach-mx2/devices.h =================================================================== --- /dev/null +++ linux-2.6/arch/arm/mach-mx2/devices.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2008 by Juergen Beisert + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +extern struct platform_device mxc_irda_device; +extern struct platform_device mxc_gpt0; +extern struct platform_device mxc_gpt1; +extern struct platform_device mxc_gpt2; +#ifdef CONFIG_MACH_MX27 +extern struct platform_device mxc_gpt3; +extern struct platform_device mxc_gpt4; +extern struct platform_device mxc_gpt5; +#endif +extern struct platform_device mxc_wdt; Index: linux-2.6/arch/arm/mach-mx2/Makefile =================================================================== --- linux-2.6.orig/arch/arm/mach-mx2/Makefile +++ linux-2.6/arch/arm/mach-mx2/Makefile @@ -4,7 +4,7 @@ # Object file lists. -obj-y := serial.o system.o generic.o +obj-y := serial.o system.o generic.o devices.o obj-$(CONFIG_MACH_MX27) += cpu_imx27.o obj-$(CONFIG_MACH_MX27) += clock_imx27.o