1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2012 Sascha Hauer, Pengutronix
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/init.h>
7*4882a593Smuzhiyun #include <linux/irq.h>
8*4882a593Smuzhiyun #include <linux/of_address.h>
9*4882a593Smuzhiyun #include <linux/of_irq.h>
10*4882a593Smuzhiyun #include <linux/of_platform.h>
11*4882a593Smuzhiyun #include <linux/mm.h>
12*4882a593Smuzhiyun #include <asm/mach/arch.h>
13*4882a593Smuzhiyun #include <asm/mach/map.h>
14*4882a593Smuzhiyun #include <asm/mach/time.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "common.h"
17*4882a593Smuzhiyun #include "hardware.h"
18*4882a593Smuzhiyun #include "mx27.h"
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun /* MX27 memory map definition */
21*4882a593Smuzhiyun static struct map_desc imx27_io_desc[] __initdata = {
22*4882a593Smuzhiyun /*
23*4882a593Smuzhiyun * this fixed mapping covers:
24*4882a593Smuzhiyun * - AIPI1
25*4882a593Smuzhiyun * - AIPI2
26*4882a593Smuzhiyun * - AITC
27*4882a593Smuzhiyun * - ROM Patch
28*4882a593Smuzhiyun * - and some reserved space
29*4882a593Smuzhiyun */
30*4882a593Smuzhiyun imx_map_entry(MX27, AIPI, MT_DEVICE),
31*4882a593Smuzhiyun /*
32*4882a593Smuzhiyun * this fixed mapping covers:
33*4882a593Smuzhiyun * - CSI
34*4882a593Smuzhiyun * - ATA
35*4882a593Smuzhiyun */
36*4882a593Smuzhiyun imx_map_entry(MX27, SAHB1, MT_DEVICE),
37*4882a593Smuzhiyun /*
38*4882a593Smuzhiyun * this fixed mapping covers:
39*4882a593Smuzhiyun * - EMI
40*4882a593Smuzhiyun */
41*4882a593Smuzhiyun imx_map_entry(MX27, X_MEMC, MT_DEVICE),
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /*
45*4882a593Smuzhiyun * Initialize the memory map. It is called during the
46*4882a593Smuzhiyun * system startup to create static physical to virtual
47*4882a593Smuzhiyun * memory map for the IO modules.
48*4882a593Smuzhiyun */
mx27_map_io(void)49*4882a593Smuzhiyun static void __init mx27_map_io(void)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
imx27_init_early(void)54*4882a593Smuzhiyun static void __init imx27_init_early(void)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun mxc_set_cpu_type(MXC_CPU_MX27);
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
mx27_init_irq(void)59*4882a593Smuzhiyun static void __init mx27_init_irq(void)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun void __iomem *avic_base;
62*4882a593Smuzhiyun struct device_node *np;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun np = of_find_compatible_node(NULL, NULL, "fsl,avic");
65*4882a593Smuzhiyun avic_base = of_iomap(np, 0);
66*4882a593Smuzhiyun BUG_ON(!avic_base);
67*4882a593Smuzhiyun mxc_init_irq(avic_base);
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun static const char * const imx27_dt_board_compat[] __initconst = {
71*4882a593Smuzhiyun "fsl,imx27",
72*4882a593Smuzhiyun NULL
73*4882a593Smuzhiyun };
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
76*4882a593Smuzhiyun .map_io = mx27_map_io,
77*4882a593Smuzhiyun .init_early = imx27_init_early,
78*4882a593Smuzhiyun .init_irq = mx27_init_irq,
79*4882a593Smuzhiyun .init_late = imx27_pm_init,
80*4882a593Smuzhiyun .dt_compat = imx27_dt_board_compat,
81*4882a593Smuzhiyun MACHINE_END
82