Add the files for the SMN42 board
diff --git a/cpu/arm720t/lpc2292/mmc.c b/cpu/arm720t/lpc2292/mmc.c
new file mode 100644
index 0000000..fd7f149b
--- /dev/null
+++ b/cpu/arm720t/lpc2292/mmc.c
@@ -0,0 +1,157 @@
+/*
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <mmc.h>
+#include <asm/errno.h>
+#include <asm/arch/hardware.h>
+#include <part.h>
+#include <fat.h>
+#include "mmc_hw.h"
+#include <asm/arch/spi.h>
+
+#ifdef CONFIG_MMC
+
+#undef MMC_DEBUG
+
+static block_dev_desc_t mmc_dev;
+
+/* these are filled out by a call to mmc_hw_get_parameters */
+static int hw_size; /* in kbytes */
+static int hw_nr_sects;
+static int hw_sect_size; /* in bytes */
+
+block_dev_desc_t * mmc_get_dev(int dev)
+{
+ return (block_dev_desc_t *)(&mmc_dev);
+}
+
+unsigned long mmc_block_read(int dev,
+ unsigned long start,
+ lbaint_t blkcnt,
+ void *buffer)
+{
+ unsigned long rc = 0;
+ unsigned char *p = (unsigned char *)buffer;
+ unsigned long i;
+ unsigned long addr = start;
+
+#ifdef MMC_DEBUG
+ printf("mmc_block_read: start=%lu, blkcnt=%lu\n", start,
+ (unsigned long)blkcnt);
+#endif
+
+ for(i = 0; i < (unsigned long)blkcnt; i++) {
+#ifdef MMC_DEBUG
+ printf("mmc_read_sector: addr=%lu, buffer=%p\n", addr, p);
+#endif
+ (void)mmc_read_sector(addr, p);
+ rc++;
+ addr++;
+ p += hw_sect_size;
+ }
+
+ return rc;
+}
+
+/*-----------------------------------------------------------------------------
+ * Read hardware paramterers (sector size, size, number of sectors)
+ */
+static int mmc_hw_get_parameters(void)
+{
+ unsigned char csddata[16];
+ unsigned int sizemult;
+ unsigned int size;
+
+ mmc_read_csd(csddata);
+ hw_sect_size = 1<<(csddata[5] & 0x0f);
+ size = ((csddata[6]&0x03)<<10)+(csddata[7]<<2)+(csddata[8]&0xc0);
+ sizemult = ((csddata[10] & 0x80)>>7)+((csddata[9] & 0x03)<<1);
+ hw_nr_sects = (size+1)*(1<<(sizemult+2));
+ hw_size = hw_nr_sects*hw_sect_size/1024;
+
+#ifdef MMC_DEBUG
+ printf("mmc_hw_get_parameters: hw_sect_size=%d, hw_nr_sects=%d, "
+ "hw_size=%d\n", hw_sect_size, hw_nr_sects, hw_size);
+#endif
+
+ return 0;
+}
+
+int mmc_init(int verbose)
+{
+ int ret = -ENODEV;
+
+ if (verbose)
+ printf("mmc_init\n");
+
+ spi_init();
+ /* this meeds to be done twice */
+ mmc_hw_init();
+ udelay(1000);
+ mmc_hw_init();
+
+ mmc_hw_get_parameters();
+
+ mmc_dev.if_type = IF_TYPE_MMC;
+ mmc_dev.part_type = PART_TYPE_DOS;
+ mmc_dev.dev = 0;
+ mmc_dev.lun = 0;
+ mmc_dev.type = 0;
+ mmc_dev.blksz = hw_sect_size;
+ mmc_dev.lba = hw_nr_sects;
+ sprintf((char*)mmc_dev.vendor, "Unknown vendor");
+ sprintf((char*)mmc_dev.product, "Unknown product");
+ sprintf((char*)mmc_dev.revision, "N/A");
+ mmc_dev.removable = 0; /* should be true??? */
+ mmc_dev.block_read = mmc_block_read;
+
+ fat_register_device(&mmc_dev, 1);
+
+ ret = 0;
+
+ return ret;
+}
+
+int mmc_write(uchar * src, ulong dst, int size)
+{
+#ifdef MMC_DEBUG
+ printf("mmc_write: src=%p, dst=%lu, size=%u\n", src, dst, size);
+#endif
+ /* Since mmc2info always returns 0 this function will never be called */
+ return 0;
+}
+
+int mmc_read(ulong src, uchar * dst, int size)
+{
+#ifdef MMC_DEBUG
+ printf("mmc_read: src=%lu, dst=%p, size=%u\n", src, dst, size);
+#endif
+ /* Since mmc2info always returns 0 this function will never be called */
+ return 0;
+}
+
+int mmc2info(ulong addr)
+{
+ /* This function is used by cmd_cp to determine if source or destination
+ address resides on MMC-card or not. We do not support copy to and from
+ MMC-card so we always return 0. */
+ return 0;
+}
+
+#endif /* CONFIG_MMC */