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authorKevin Cernekee <cernekee@gmail.com>2014-12-25 12:49:00 -0500
committerRalf Baechle <ralf@linux-mips.org>2015-04-01 11:21:35 -0400
commit5f2d44591fb374ae346a3df682d722b68552adc2 (patch)
tree22bd5d017c3b9fe25a25587ebb65b05abf37cbe1 /arch/mips/bmips/setup.c
parenteb2236ea580bb21c954c889cc3dc05b3e98238cd (diff)
MIPS: bcm3384: Rename "bcm3384" target to "bmips"
This platform is configured primarily through device tree, and we can reuse the same code to support a bunch of other chips. Change the name to reflect this. [ralf@linux-mips.org: Fix conflicts with other patches.] Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8838/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/bmips/setup.c')
-rw-r--r--arch/mips/bmips/setup.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
new file mode 100644
index 000000000000..5099109b2325
--- /dev/null
+++ b/arch/mips/bmips/setup.c
@@ -0,0 +1,97 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
8 */
9
10#include <linux/init.h>
11#include <linux/bootmem.h>
12#include <linux/clk-provider.h>
13#include <linux/ioport.h>
14#include <linux/of.h>
15#include <linux/of_fdt.h>
16#include <linux/of_platform.h>
17#include <linux/smp.h>
18#include <asm/addrspace.h>
19#include <asm/bmips.h>
20#include <asm/bootinfo.h>
21#include <asm/prom.h>
22#include <asm/smp-ops.h>
23#include <asm/time.h>
24
25void __init prom_init(void)
26{
27 register_bmips_smp_ops();
28}
29
30void __init prom_free_prom_memory(void)
31{
32}
33
34const char *get_system_type(void)
35{
36 return "Generic BMIPS kernel";
37}
38
39void __init plat_time_init(void)
40{
41 struct device_node *np;
42 u32 freq;
43
44 np = of_find_node_by_name(NULL, "cpus");
45 if (!np)
46 panic("missing 'cpus' DT node");
47 if (of_property_read_u32(np, "mips-hpt-frequency", &freq) < 0)
48 panic("missing 'mips-hpt-frequency' property");
49 of_node_put(np);
50
51 mips_hpt_frequency = freq;
52}
53
54void __init plat_mem_setup(void)
55{
56 void *dtb = __dtb_start;
57
58 set_io_port_base(0);
59 ioport_resource.start = 0;
60 ioport_resource.end = ~0;
61
62 /* intended to somewhat resemble ARM; see Documentation/arm/Booting */
63 if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
64 dtb = phys_to_virt(fw_arg2);
65
66 __dt_setup_arch(dtb);
67
68 strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
69}
70
71void __init device_tree_init(void)
72{
73 struct device_node *np;
74
75 unflatten_and_copy_device_tree();
76
77 /* Disable SMP boot unless both CPUs are listed in DT and !disabled */
78 np = of_find_node_by_name(NULL, "cpus");
79 if (np && of_get_available_child_count(np) <= 1)
80 bmips_smp_enabled = 0;
81 of_node_put(np);
82}
83
84int __init plat_of_setup(void)
85{
86 return __dt_register_buses("brcm,bcm3384", "simple-bus");
87}
88
89arch_initcall(plat_of_setup);
90
91static int __init plat_dev_init(void)
92{
93 of_clk_init(NULL);
94 return 0;
95}
96
97device_initcall(plat_dev_init);