summaryrefslogtreecommitdiffstats
path: root/qemu/roms/u-boot/board/amcc/bluestone/bluestone.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/u-boot/board/amcc/bluestone/bluestone.c')
-rw-r--r--qemu/roms/u-boot/board/amcc/bluestone/bluestone.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/amcc/bluestone/bluestone.c b/qemu/roms/u-boot/board/amcc/bluestone/bluestone.c
new file mode 100644
index 000000000..6520f75c6
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/bluestone/bluestone.c
@@ -0,0 +1,99 @@
+/*
+ * Bluestone board support
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@apm.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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 buf[64];
+ int i = getenv_f("serial#", buf, sizeof(buf));
+
+ puts("Board: Bluestone Evaluation Board");
+
+ if (i > 0) {
+ puts(", serial# ");
+ puts(buf);
+ }
+ 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;
+}