ARM: imx: dynamically register mxc-mmc devices

... plus a trivial simplification of mx21ads_sdhc_init()

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

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
new file mode 100644
index 000000000000..953319e4d874
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
@@ -0,0 +1,62 @@
+/*
+ * 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>
+
+#define imx_mxc_mmc_data_entry_single(soc, _id, _hwid)                  \
+        {                                                               \
+                .id = _id,                                              \
+                .iobase = soc ## _SDHC ## _hwid ## _BASE_ADDR,          \
+                .irq = soc ## _INT_SDHC ## _hwid,                       \
+                .dmareq = soc ## _DMA_REQ_SDHC ## _hwid,                \
+        }
+#define imx_mxc_mmc_data_entry(soc, _id, _hwid)                         \
+        [_id] = imx_mxc_mmc_data_entry_single(soc, _id, _hwid)
+
+#ifdef CONFIG_SOC_IMX21
+const struct imx_mxc_mmc_data imx21_mxc_mmc_data[] __initconst = {
+#define imx21_mxc_mmc_data_entry(_id, _hwid)                            \
+        imx_mxc_mmc_data_entry(MX21, _id, _hwid)
+        imx21_mxc_mmc_data_entry(0, 1),
+        imx21_mxc_mmc_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX21 */
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_mxc_mmc_data imx27_mxc_mmc_data[] __initconst = {
+#define imx27_mxc_mmc_data_entry(_id, _hwid)                            \
+        imx_mxc_mmc_data_entry(MX27, _id, _hwid)
+        imx27_mxc_mmc_data_entry(0, 1),
+        imx27_mxc_mmc_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX27 */
+
+struct platform_device *__init imx_add_mxc_mmc(
+                const struct imx_mxc_mmc_data *data,
+                const struct imxmmc_platform_data *pdata)
+{
+        struct resource res[] = {
+                {
+                        .start = data->iobase,
+                        .end = data->iobase + SZ_4K - 1,
+                        .flags = IORESOURCE_MEM,
+                }, {
+                        .start = data->irq,
+                        .end = data->irq,
+                        .flags = IORESOURCE_IRQ,
+                }, {
+                        .start = data->dmareq,
+                        .end = data->dmareq,
+                        .flags = IORESOURCE_DMA,
+                },
+        };
+        return imx_add_platform_device_dmamask("mxc-mmc", data->id,
+                        res, ARRAY_SIZE(res),
+                        pdata, sizeof(*pdata), DMA_BIT_MASK(32));
+}