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authorZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>2015-10-26 11:30:56 +0000
committerRalf Baechle <ralf@linux-mips.org>2015-11-11 08:38:44 +0100
commit9937f5fff889bde488c5ffd238dcb49e9b9cc7b7 (patch)
tree2ac3a86bd0914a3b264ade99152f73c052a1cb2e /arch/mips/xilfpga/init.c
parent552b8b363ede5fc53db343b67c0b2b5eaf783a11 (diff)
MIPS: xilfpga: Add mipsfpga platform code
The xilfpga platform will be DT only. Add required platform code. DT files have already been added separately. Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: robh+dt@kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11364/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/xilfpga/init.c')
-rw-r--r--arch/mips/xilfpga/init.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/mips/xilfpga/init.c b/arch/mips/xilfpga/init.c
new file mode 100644
index 000000000000..ce2aee2169ac
--- /dev/null
+++ b/arch/mips/xilfpga/init.c
@@ -0,0 +1,57 @@
+/*
+ * Xilfpga platform setup
+ *
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+
+#include <asm/prom.h>
+
+#define XILFPGA_UART_BASE 0xb0401000
+
+const char *get_system_type(void)
+{
+ return "MIPSfpga";
+}
+
+void __init plat_mem_setup(void)
+{
+ __dt_setup_arch(__dtb_start);
+ strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
+void __init prom_init(void)
+{
+ setup_8250_early_printk_port(XILFPGA_UART_BASE, 2, 50000);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+void __init device_tree_init(void)
+{
+ if (!initial_boot_params)
+ return;
+
+ unflatten_and_copy_device_tree();
+}
+
+static int __init plat_of_setup(void)
+{
+ if (!of_have_populated_dt())
+ panic("Device tree not present");
+
+ if (of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL))
+ panic("Failed to populate DT");
+
+ return 0;
+}
+arch_initcall(plat_of_setup);