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Diffstat (limited to 'board/gdsys/mpc8308/mpc8308.c')
-rw-r--r--board/gdsys/mpc8308/mpc8308.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/board/gdsys/mpc8308/mpc8308.c b/board/gdsys/mpc8308/mpc8308.c
new file mode 100644
index 0000000000..4338a33126
--- /dev/null
+++ b/board/gdsys/mpc8308/mpc8308.c
@@ -0,0 +1,109 @@
+/*
+ * (C) Copyright 2014
+ * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/ppc4xx-gpio.h>
+#include <asm/global_data.h>
+
+#include "mpc8308.h"
+#include <gdsys_fpga.h>
+
+#define REFLECTION_TESTPATTERN 0xdede
+#define REFLECTION_TESTPATTERN_INV (~REFLECTION_TESTPATTERN & 0xffff)
+
+#ifdef CONFIG_SYS_FPGA_NO_RFL_HI
+#define REFLECTION_TESTREG reflection_low
+#else
+#define REFLECTION_TESTREG reflection_high
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int get_fpga_state(unsigned dev)
+{
+ return gd->arch.fpga_state[dev];
+}
+
+void print_fpga_state(unsigned dev)
+{
+ if (gd->arch.fpga_state[dev] & FPGA_STATE_DONE_FAILED)
+ puts(" Waiting for FPGA-DONE timed out.\n");
+ if (gd->arch.fpga_state[dev] & FPGA_STATE_REFLECTION_FAILED)
+ puts(" FPGA reflection test failed.\n");
+}
+
+int board_early_init_f(void)
+{
+ unsigned k;
+
+ for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
+ gd->arch.fpga_state[k] = 0;
+
+ return 0;
+}
+
+int board_early_init_r(void)
+{
+ unsigned k;
+ unsigned ctr;
+
+ for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
+ gd->arch.fpga_state[k] = 0;
+
+ /*
+ * reset FPGA
+ */
+ mpc8308_init();
+
+ mpc8308_set_fpga_reset(1);
+
+ mpc8308_setup_hw();
+
+ for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
+ ctr = 0;
+ while (!mpc8308_get_fpga_done(k)) {
+ udelay(100000);
+ if (ctr++ > 5) {
+ gd->arch.fpga_state[k] |=
+ FPGA_STATE_DONE_FAILED;
+ break;
+ }
+ }
+ }
+
+ udelay(10);
+
+ mpc8308_set_fpga_reset(0);
+
+ for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
+ /*
+ * wait for fpga out of reset
+ */
+ ctr = 0;
+ while (1) {
+ u16 val;
+
+ FPGA_SET_REG(k, reflection_low, REFLECTION_TESTPATTERN);
+
+ FPGA_GET_REG(k, REFLECTION_TESTREG, &val);
+ if (val == REFLECTION_TESTPATTERN_INV)
+ break;
+
+ udelay(100000);
+ if (ctr++ > 5) {
+ gd->arch.fpga_state[k] |=
+ FPGA_STATE_REFLECTION_FAILED;
+ break;
+ }
+ }
+ }
+
+ return 0;
+}