1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/aspeed/SPIM.c b/arch/arm/cpu/arm926ejs/aspeed/SPIM.c
new file mode 100644
index 0000000..e1bdd07
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/aspeed/SPIM.c
@@ -0,0 +1,63 @@
+/*
+ *  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
+ */
+#define SPIM_C
+static const char ThisFile[] = "SPIM.c";
+
+#include "SWFUNC.H"
+
+#ifdef SPI_BUS
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <conio.h>
+#include <string.h>
+#include "TYPEDEF.H"
+#include "LIB_SPI.H"
+
+#define SPIM_CMD_WHA     0x01
+#define SPIM_CMD_RD      0x0B
+#define SPIM_CMD_DRD     0xBB
+#define SPIM_CMD_WR      0x02
+#define SPIM_CMD_DWR     0xD2
+#define SPIM_CMD_STA     0x05
+#define SPIM_CMD_ENBYTE  0x06
+#define SPIM_CMD_DISBYTE 0x04
+
+ULONG spim_cs;
+ULONG spim_base;
+ULONG spim_hadr;
+
+void spim_end()
+{
+  ULONG data;
+
+  data = MIndwm((ULONG)mmiobase, 0x1E620010 + (spim_cs << 2));
+  MOutdwm( (ULONG)mmiobase, 0x1E620010 + (spim_cs << 2), data | 0x4);
+  MOutdwm( (ULONG)mmiobase, 0x1E620010 + (spim_cs << 2), data);
+}
+
+//------------------------------------------------------------
+void spim_init(int cs)
+{
+  ULONG data;
+
+  spim_cs = cs;
+  MOutdwm( (ULONG)mmiobase, 0x1E620000, (0x2 << (cs << 1)) | (0x10000 << cs));
+  MOutdwm( (ULONG)mmiobase, 0x1E620010 + (cs << 2), 0x00000007);
+  MOutdwm( (ULONG)mmiobase, 0x1E620010 + (cs << 2), 0x00002003);
+  MOutdwm( (ULONG)mmiobase, 0x1E620004, 0x100 << cs);
+  data = MIndwm((ULONG)mmiobase, 0x1E620030 + (cs << 2));
+  spim_base = 0x20000000 | ((data & 0x007f0000) << 7);
+  MOutwm ( (ULONG)mmiobase, spim_base, SPIM_CMD_WHA);
+  spim_end();
+  spim_hadr = 0;
+}
+#endif // End SPI_BUS