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Diffstat (limited to 'board/amcc/bluestone/bluestone.c')
-rw-r--r--board/amcc/bluestone/bluestone.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/board/amcc/bluestone/bluestone.c b/board/amcc/bluestone/bluestone.c
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+++ b/board/amcc/bluestone/bluestone.c
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+/*
+ * Bluestone board support
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@apm.com>
+ *
+ * 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 <asm/apm821xx.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/ppc4xx-gpio.h>
+
+int board_early_init_f(void)
+{
+ /*
+ * Setup the interrupt controller polarities, triggers, etc.
+ */
+ mtdcr(UIC0SR, 0xffffffff); /* clear all */
+ mtdcr(UIC0ER, 0x00000000); /* disable all */
+ mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
+ mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */
+ mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */
+ mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(UIC0SR, 0xffffffff); /* clear all */
+
+ mtdcr(UIC1SR, 0xffffffff); /* clear all */
+ mtdcr(UIC1ER, 0x00000000); /* disable all */
+ mtdcr(UIC1CR, 0x00000000); /* all non-critical */
+ mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */
+ mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */
+ mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(UIC1SR, 0xffffffff); /* clear all */
+
+ mtdcr(UIC2SR, 0xffffffff); /* clear all */
+ mtdcr(UIC2ER, 0x00000000); /* disable all */
+ mtdcr(UIC2CR, 0x00000000); /* all non-critical */
+ mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */
+ mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */
+ mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(UIC2SR, 0xffffffff); /* clear all */
+
+ mtdcr(UIC3SR, 0xffffffff); /* clear all */
+ mtdcr(UIC3ER, 0x00000000); /* disable all */
+ mtdcr(UIC3CR, 0x00000000); /* all non-critical */
+ mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */
+ mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */
+ mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(UIC3SR, 0xffffffff); /* clear all */
+
+ /*
+ * Configure PFC (Pin Function Control) registers
+ * UART0: 2 pins
+ */
+ mtsdr(SDR0_PFC1, 0x0000000);
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ char *s = getenv("serial#");
+
+ puts("Board: Bluestone Evaluation Board");
+
+ if (s != NULL) {
+ puts(", serial# ");
+ puts(s);
+ }
+ putc('\n');
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ u32 sdr0_srst1 = 0;
+
+ /* Setup PLB4-AHB bridge based on the system address map */
+ mtdcr(AHB_TOP, 0x8000004B);
+ mtdcr(AHB_BOT, 0x8000004B);
+
+ /*
+ * The AHB Bridge core is held in reset after power-on or reset
+ * so enable it now
+ */
+ mfsdr(SDR0_SRST1, sdr0_srst1);
+ sdr0_srst1 &= ~SDR0_SRST1_AHB;
+ mtsdr(SDR0_SRST1, sdr0_srst1);
+
+ return 0;
+}