ARM: mx3: dynamically allocate mxc_rnga devices

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 46fffa5..17ae7d3 100644 (file)
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -12,7 +12,7 @@ config ARCH_MX35
 
 config SOC_IMX31
        bool
-       select ARCH_HAS_RNGA
+       select IMX_HAVE_PLATFORM_MXC_RNGA
        select ARCH_MXC_AUDMUX_V2
        select ARCH_MX31
 

diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index 079b98e..202c06c 100644 (file)
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -29,23 +29,6 @@
 
 #include "devices.h"
 
-#ifdef CONFIG_ARCH_MX31
-static struct resource rnga_resources[] = {
-       {
-               .start = MX3x_RNGA_BASE_ADDR,
-               .end = MX3x_RNGA_BASE_ADDR + 0x28,
-               .flags = IORESOURCE_MEM,
-       },
-};
-
-struct platform_device mxc_rnga_device = {
-       .name = "mxc_rnga",
-       .id = -1,
-       .num_resources = 1,
-       .resource = rnga_resources,
-};
-#endif /* CONFIG_ARCH_MX31 */
-
 /* i.MX31 Image Processing Unit */
 
 /* The resource order is important! */
@@ -262,7 +245,6 @@ static int __init mx3_devices_init(void)
        if (cpu_is_mx31()) {
                imx_wdt_resources[0].start = MX31_WDOG_BASE_ADDR;
                imx_wdt_resources[0].end = MX31_WDOG_BASE_ADDR + 0x3fff;
-               mxc_register_device(&mxc_rnga_device, NULL);
        }
 #endif
 #if defined(CONFIG_ARCH_MX35)

diff --git a/arch/arm/mach-mx3/devices.h b/arch/arm/mach-mx3/devices.h
index 2020474..d472c45 100644 (file)
--- a/arch/arm/mach-mx3/devices.h
+++ b/arch/arm/mach-mx3/devices.h
@@ -5,7 +5,6 @@ extern struct platform_device mxc_otg_udc_device;
 extern struct platform_device mxc_otg_host;
 extern struct platform_device mxc_usbh1;
 extern struct platform_device mxc_usbh2;
-extern struct platform_device mxc_rnga_device;
 extern struct platform_device imx_wdt_device0;
 extern struct platform_device imx_rtc_device0;
 extern struct platform_device imx_kpp_device;

diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index 1be4476..f34c139 100644 (file)
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -62,6 +62,10 @@ config IMX_HAVE_PLATFORM_MXC_NAND
 config IMX_HAVE_PLATFORM_MXC_PWM
        bool
 
+config IMX_HAVE_PLATFORM_MXC_RNGA
+       bool
+       select ARCH_HAS_RNGA
+
 config IMX_HAVE_PLATFORM_MXC_W1
        bool
 

diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index f1c3767..91fdd6c 100644 (file)
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -19,5 +19,6 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_EHCI) += platform-mxc-ehci.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_MMC) += platform-mxc-mmc.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_NAND) += platform-mxc_nand.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_PWM) += platform-mxc_pwm.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_RNGA) += platform-mxc_rnga.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_W1) += platform-mxc_w1.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_SPI_IMX) +=  platform-spi_imx.o

diff --git a/arch/arm/plat-mxc/devices/platform-mxc_rnga.c b/arch/arm/plat-mxc/devices/platform-mxc_rnga.c
new file mode 100644 (file)
index 0000000..b4b7612
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-mxc_rnga.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * 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 <mach/hardware.h>
+#include <mach/devices-common.h>
+
+struct imx_mxc_rnga_data {
+       resource_size_t iobase;
+};
+
+#define imx_mxc_rnga_data_entry_single(soc)                            \
+       {                                                               \
+               .iobase = soc ## _RNGA_BASE_ADDR,                       \
+       }
+
+#ifdef CONFIG_SOC_IMX31
+static const struct imx_mxc_rnga_data imx31_mxc_rnga_data __initconst =
+       imx_mxc_rnga_data_entry_single(MX31);
+#endif /* ifdef CONFIG_SOC_IMX31 */
+
+static struct platform_device *__init imx_add_mxc_rnga(
+               const struct imx_mxc_rnga_data *data)
+{
+       struct resource res[] = {
+               {
+                       .start = data->iobase,
+                       .end = data->iobase + SZ_16K - 1,
+                       .flags = IORESOURCE_MEM,
+               },
+       };
+       return imx_add_platform_device("mxc_rnga", -1,
+                       res, ARRAY_SIZE(res), NULL, 0);
+}
+
+static int __init imxXX_add_mxc_rnga(void)
+{
+       struct platform_device *ret;
+
+#if defined(CONFIG_SOC_IMX31)
+       if (cpu_is_mx31())
+               ret = imx_add_mxc_rnga(&imx31_mxc_rnga_data);
+       else
+#endif /* if defined(CONFIG_SOC_IMX31) */
+               ret = ERR_PTR(-ENODEV);
+
+       if (IS_ERR(ret))
+               return PTR_ERR(ret);
+
+       return 0;
+}
+arch_initcall(imxXX_add_mxc_rnga);