arm: socfpga: system: Clean up pinmux_config.c

[karo-tx-uboot.git] / board / altera / socfpga / wrap_pinmux_config.c

diff --git a/board/altera/socfpga/wrap_pinmux_config.c b/board/altera/socfpga/wrap_pinmux_config.c
new file mode 100644 (file)
index 0000000..b33e2ca
--- /dev/null
+++ b/board/altera/socfpga/wrap_pinmux_config.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2015 Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+/*
+ * Yes, dear reader, we're including a C file here, this is no mistake.
+ * But this time around, we do even more perverse hacking here to be
+ * compatible with QTS headers and obtain reasonably nice results too.
+ *
+ * First, we define _PRELOADER_PINMUX_CONFIG_H_, which will neutralise
+ * the pinmux_config.h inclusion in pinmux_config.c . Since we are
+ * probing everything from DT, we do NOT want those macros from the
+ * pinmux_config.h to ooze into our build system, anywhere, ever. So
+ * we nip it at the bud.
+ *
+ * Next, pinmux_config.c needs CONFIG_HPS_PINMUX_NUM and uses it to
+ * specify sized array explicitly. Instead, we want to use ARRAY_SIZE
+ * to figure out the size of the array, so define this macro as an
+ * empty one, so that the preprocessor optimizes things such that the
+ * arrays are not sized by default.
+ */
+#define _PRELOADER_PINMUX_CONFIG_H_
+#define CONFIG_HPS_PINMUX_NUM
+#include "qts/pinmux_config.c"
+
+void sysmgr_get_pinmux_table(const unsigned long **table,
+                            unsigned int *table_len)
+{
+       *table = sys_mgr_init_table;
+       *table_len = ARRAY_SIZE(sys_mgr_init_table);
+}