From 66384eedd900f2f6bb00e4f16c2cb770d6b0066b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 15 Jun 2010 18:14:19 +0200 Subject: [PATCH] ARM: imx: Change the way nand devices are registered (generic part) MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Instead of having a platform device defined in a devices.c and register it in the machine file allocate it dynamically. This reduces the size of needed memory as the new function is discarded after init and only the existing devices are created. Signed-off-by: Uwe Kleine-König --- arch/arm/plat-mxc/Kconfig | 2 + arch/arm/plat-mxc/Makefile | 2 + arch/arm/plat-mxc/devices/Kconfig | 2 + arch/arm/plat-mxc/devices/Makefile | 1 + arch/arm/plat-mxc/devices/platform-mxc_nand.c | 44 +++++++++++++++++++ .../plat-mxc/include/mach/devices-common.h | 6 +++ 6 files changed, 57 insertions(+) create mode 100644 arch/arm/plat-mxc/devices/Kconfig create mode 100644 arch/arm/plat-mxc/devices/Makefile create mode 100644 arch/arm/plat-mxc/devices/platform-mxc_nand.c diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig index d80de4eacd2a..cf053d7e5261 100644 --- a/arch/arm/plat-mxc/Kconfig +++ b/arch/arm/plat-mxc/Kconfig @@ -1,5 +1,7 @@ if ARCH_MXC +source "arch/arm/plat-mxc/devices/Kconfig" + menu "Freescale MXC Implementations" choice diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile index f134d14eabfd..c7506a80eb31 100644 --- a/arch/arm/plat-mxc/Makefile +++ b/arch/arm/plat-mxc/Makefile @@ -19,3 +19,5 @@ ifdef CONFIG_SND_IMX_SOC obj-y += ssi-fiq.o obj-y += ssi-fiq-ksym.o endif + +obj-y += devices/ diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig new file mode 100644 index 000000000000..09e91dde63ab --- /dev/null +++ b/arch/arm/plat-mxc/devices/Kconfig @@ -0,0 +1,2 @@ +config IMX_HAVE_PLATFORM_MXC_NAND + bool diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile new file mode 100644 index 000000000000..e314533a61b9 --- /dev/null +++ b/arch/arm/plat-mxc/devices/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_NAND) += platform-mxc_nand.o diff --git a/arch/arm/plat-mxc/devices/platform-mxc_nand.c b/arch/arm/plat-mxc/devices/platform-mxc_nand.c new file mode 100644 index 000000000000..1c286418d123 --- /dev/null +++ b/arch/arm/plat-mxc/devices/platform-mxc_nand.c @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2009-2010 Pengutronix + * Uwe Kleine-Koenig + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + */ +#include +#include + +static struct platform_device *__init imx_add_mxc_nand(resource_size_t iobase, + int irq, const struct mxc_nand_platform_data *pdata, + resource_size_t iosize) +{ + static int id = 0; + + struct resource res[] = { + { + .start = iobase, + .end = iobase + iosize - 1, + .flags = IORESOURCE_MEM, + }, { + .start = irq, + .end = irq, + .flags = IORESOURCE_IRQ, + }, + }; + + return imx_add_platform_device("mxc_nand", id++, res, ARRAY_SIZE(res), + pdata, sizeof(*pdata)); +} + +struct platform_device *__init imx_add_mxc_nand_v1(resource_size_t iobase, + int irq, const struct mxc_nand_platform_data *pdata) +{ + return imx_add_mxc_nand(iobase, irq, pdata, SZ_4K); +} + +struct platform_device *__init imx_add_mxc_nand_v21(resource_size_t iobase, + int irq, const struct mxc_nand_platform_data *pdata) +{ + return imx_add_mxc_nand(iobase, irq, pdata, SZ_8K); +} diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h index 849d8ff7b17d..d5f121a5604b 100644 --- a/arch/arm/plat-mxc/include/mach/devices-common.h +++ b/arch/arm/plat-mxc/include/mach/devices-common.h @@ -13,3 +13,9 @@ struct platform_device *imx_add_platform_device(const char *name, int id, const struct resource *res, unsigned int num_resources, const void *data, size_t size_data); + +#include +struct platform_device *__init imx_add_mxc_nand_v1(resource_size_t iobase, + int irq, const struct mxc_nand_platform_data *pdata); +struct platform_device *__init imx_add_mxc_nand_v21(resource_size_t iobase, + int irq, const struct mxc_nand_platform_data *pdata); -- 2.20.1