1 /*-
2 * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
3 * All rights reserved.
4 *
5 * Developed by Semihalf.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of MARVELL nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bus.h>
38
39 #include <machine/bus.h>
40 #include <machine/fdt.h>
41
42 #include <arm/mv/mvreg.h>
43 #include <arm/mv/mvvar.h>
44 #include <arm/mv/mvwin.h>
45
46 /*
47 * Virtual address space layout:
48 * -----------------------------
49 * 0x0000_0000 - 0xBFFF_FFFF : User Process (3 GB)
50 * 0xC000_0000 - virtual_avail : Kernel Reserved (text, data, page tables,
51 * : stack etc.)
52 * virtual-avail - 0xEFFF_FFFF : KVA (virtual_avail is typically < 0xc0a0_0000)
53 * 0xF000_0000 - 0xF0FF_FFFF : No-Cache allocation area (16 MB)
54 * 0xF100_0000 - 0xF10F_FFFF : SoC Integrated devices registers range (1 MB)
55 * 0xF110_0000 - 0xF11F_FFFF : PCI-Express I/O space (1MB)
56 * 0xF120_0000 - 0xF12F_FFFF : PCI I/O space (1MB)
57 * 0xF130_0000 - 0xF52F_FFFF : PCI-Express memory space (64MB)
58 * 0xF530_0000 - 0xF92F_FFFF : PCI memory space (64MB)
59 * 0xF930_0000 - 0xF93F_FFFF : Device Bus: BOOT (1 MB)
60 * 0xF940_0000 - 0xF94F_FFFF : Device Bus: CS0 (1 MB)
61 * 0xF950_0000 - 0xFB4F_FFFF : Device Bus: CS1 (32 MB)
62 * 0xFB50_0000 - 0xFB5F_FFFF : Device Bus: CS2 (1 MB)
63 * 0xFB60_0000 - 0xFFFE_FFFF : Unused (~74MB)
64 * 0xFFFF_0000 - 0xFFFF_0FFF : 'High' vectors page (4 kB)
65 * 0xFFFF_1000 - 0xFFFF_1FFF : ARM_TP_ADDRESS/RAS page (4 kB)
66 * 0xFFFF_2000 - 0xFFFF_FFFF : Unused (56 kB)
67 */
68
69
70 struct resource_spec mv_gpio_res[] = {
71 { SYS_RES_MEMORY, 0, RF_ACTIVE },
72 { SYS_RES_IRQ, 0, RF_ACTIVE },
73 { SYS_RES_IRQ, 1, RF_ACTIVE },
74 { SYS_RES_IRQ, 2, RF_ACTIVE },
75 { SYS_RES_IRQ, 3, RF_ACTIVE },
76 { -1, 0 }
77 };
78
79 const struct decode_win idma_win_tbl[] = {
80 { 0 },
81 };
82 const struct decode_win *idma_wins = idma_win_tbl;
83 int idma_wins_no = 0;
84
85 const struct decode_win xor_win_tbl[] = {
86 { 0 },
87 };
88 const struct decode_win *xor_wins = xor_win_tbl;
89 int xor_wins_no = 0;
90
91 uint32_t
get_tclk(void)92 get_tclk(void)
93 {
94 uint32_t sar;
95
96 /*
97 * On Discovery TCLK is can be configured to 166 MHz or 200 MHz.
98 * Current setting is read from Sample At Reset register.
99 */
100 sar = bus_space_read_4(fdtbus_bs_tag, MV_MPP_BASE, SAMPLE_AT_RESET_HI);
101 sar = (sar & TCLK_MASK) >> TCLK_SHIFT;
102
103 switch (sar) {
104 case 0:
105 return (TCLK_166MHZ);
106 case 1:
107 return (TCLK_200MHZ);
108 default:
109 panic("Unknown TCLK settings!");
110 }
111 }
112