ppc4xx: Add Io and IoCon 405EP board support
Board support for the Guntermann & Drunck CATCenter Io.
Board support for the Guntermann & Drunck IoCon.
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/gdsys/405ep/405ep.c b/board/gdsys/405ep/405ep.c
new file mode 100644
index 0000000..d3bd233
--- /dev/null
+++ b/board/gdsys/405ep/405ep.c
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/ppc4xx-gpio.h>
+
+#include "../common/fpga.h"
+
+#define LATCH0_BASE (CONFIG_SYS_LATCH_BASE)
+#define LATCH1_BASE (CONFIG_SYS_LATCH_BASE + 0x100)
+#define LATCH2_BASE (CONFIG_SYS_LATCH_BASE + 0x200)
+
+#define REFLECTION_TESTPATTERN 0xdede
+#define REFLECTION_TESTPATTERN_INV (~REFLECTION_TESTPATTERN & 0xffff)
+
+int board_early_init_f(void)
+{
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(UIC0ER, 0x00000000); /* disable all ints */
+ mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical */
+ mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
+ mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
+ mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest prio */
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+
+ /*
+ * EBC Configuration Register: set ready timeout to 512 ebc-clks
+ * -> ca. 15 us
+ */
+ mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */
+
+ /*
+ * setup io-latches for reset
+ */
+ out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_RESET);
+ out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_RESET);
+
+ /*
+ * set "startup-finished"-gpios
+ */
+ gpio_write_bit(21, 0);
+ gpio_write_bit(22, 1);
+
+ /*
+ * wait for fpga-done
+ * fail ungraceful if fpga is not configuring properly
+ */
+ while (!(in_le16((void *)LATCH2_BASE) & 0x0010))
+ ;
+
+ /*
+ * setup io-latches for boot (stop reset)
+ */
+ udelay(10);
+ out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_BOOT);
+ out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_BOOT);
+
+ /*
+ * wait for fpga out of reset
+ * fail ungraceful if fpga is not working properly
+ */
+ while (1) {
+ fpga_set_reg(CONFIG_SYS_FPGA_RFL_LOW, REFLECTION_TESTPATTERN);
+ if (fpga_get_reg(CONFIG_SYS_FPGA_RFL_HIGH) ==
+ REFLECTION_TESTPATTERN_INV)
+ break;
+ }
+
+ return 0;
+}