sdmmc: update test program to read first two sectors of sd card

exosphere/sdmmc_test/source/hwinit.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2018 naehrwert
+ * Copyright (c) 2018 CTCaer
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef FUSEE_HWINIT_H_
+#define FUSEE_HWINIT_H_
+
+#define I2S_BASE 0x702D1000
+#define MAKE_I2S_REG(n) MAKE_REG32(I2S_BASE + n)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void nx_hwinit();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif