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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/mips/ar7/setup.c
Initial import
Diffstat (limited to 'arch/mips/ar7/setup.c')
-rw-r--r--arch/mips/ar7/setup.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c
new file mode 100644
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+++ b/arch/mips/ar7/setup.c
@@ -0,0 +1,105 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/pm.h>
+#include <linux/time.h>
+
+#include <asm/reboot.h>
+#include <asm/mach-ar7/ar7.h>
+#include <asm/mach-ar7/prom.h>
+#include <asm/mach-ar7/gpio.h>
+
+static void ar7_machine_restart(char *command)
+{
+ u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1);
+
+ writel(1, softres_reg);
+}
+
+static void ar7_machine_halt(void)
+{
+ while (1)
+ ;
+}
+
+static void ar7_machine_power_off(void)
+{
+ u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
+ u32 power_state = readl(power_reg) | (3 << 30);
+
+ writel(power_state, power_reg);
+ ar7_machine_halt();
+}
+
+const char *get_system_type(void)
+{
+ u16 chip_id = ar7_chip_id();
+ u16 titan_variant_id = titan_chip_id();
+
+ switch (chip_id) {
+ case AR7_CHIP_7100:
+ return "TI AR7 (TNETD7100)";
+ case AR7_CHIP_7200:
+ return "TI AR7 (TNETD7200)";
+ case AR7_CHIP_7300:
+ return "TI AR7 (TNETD7300)";
+ case AR7_CHIP_TITAN:
+ switch (titan_variant_id) {
+ case TITAN_CHIP_1050:
+ return "TI AR7 (TNETV1050)";
+ case TITAN_CHIP_1055:
+ return "TI AR7 (TNETV1055)";
+ case TITAN_CHIP_1056:
+ return "TI AR7 (TNETV1056)";
+ case TITAN_CHIP_1060:
+ return "TI AR7 (TNETV1060)";
+ }
+ default:
+ return "TI AR7 (unknown)";
+ }
+}
+
+static int __init ar7_init_console(void)
+{
+ return 0;
+}
+console_initcall(ar7_init_console);
+
+/*
+ * Initializes basic routines and structures pointers, memory size (as
+ * given by the bios and saves the command line.
+ */
+void __init plat_mem_setup(void)
+{
+ unsigned long io_base;
+
+ _machine_restart = ar7_machine_restart;
+ _machine_halt = ar7_machine_halt;
+ pm_power_off = ar7_machine_power_off;
+
+ io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
+ if (!io_base)
+ panic("Can't remap IO base!");
+ set_io_port_base(io_base);
+
+ prom_meminit();
+
+ printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
+ get_system_type(), ar7_chip_id(), ar7_chip_rev());
+}