Commit | Line | Data |
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794d15b2 SS |
1 | /* |
2 | * arch/arm/mach-mv78xx0/addr-map.c | |
3 | * | |
4 | * Address map functions for Marvell MV78xx0 SoCs | |
5 | * | |
6 | * This file is licensed under the terms of the GNU General Public | |
7 | * License version 2. This program is licensed "as is" without any | |
8 | * warranty of any kind, whether express or implied. | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/mbus.h> | |
fced80c7 | 14 | #include <linux/io.h> |
b6d1c33a | 15 | #include <plat/addr-map.h> |
794d15b2 SS |
16 | #include "common.h" |
17 | ||
18 | /* | |
19 | * Generic Address Decode Windows bit settings | |
20 | */ | |
794d15b2 SS |
21 | #define TARGET_DEV_BUS 1 |
22 | #define TARGET_PCIE0 4 | |
23 | #define TARGET_PCIE1 8 | |
24 | #define TARGET_PCIE(i) ((i) ? TARGET_PCIE1 : TARGET_PCIE0) | |
25 | #define ATTR_DEV_SPI_ROM 0x1f | |
26 | #define ATTR_DEV_BOOT 0x2f | |
27 | #define ATTR_DEV_CS3 0x37 | |
28 | #define ATTR_DEV_CS2 0x3b | |
29 | #define ATTR_DEV_CS1 0x3d | |
30 | #define ATTR_DEV_CS0 0x3e | |
31 | #define ATTR_PCIE_IO(l) (0xf0 & ~(0x10 << (l))) | |
32 | #define ATTR_PCIE_MEM(l) (0xf8 & ~(0x10 << (l))) | |
33 | ||
794d15b2 SS |
34 | /* |
35 | * CPU Address Decode Windows registers | |
36 | */ | |
37 | #define WIN0_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4)) | |
38 | #define WIN8_OFF(n) (BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4)) | |
794d15b2 | 39 | |
e18287d3 | 40 | static void __init __iomem *win_cfg_base(const struct orion_addr_map_cfg *cfg, int win) |
794d15b2 SS |
41 | { |
42 | /* | |
43 | * Find the control register base address for this window. | |
44 | * | |
45 | * BRIDGE_VIRT_BASE points to the right (CPU0's or CPU1's) | |
46 | * MBUS bridge depending on which CPU core we're running on, | |
47 | * so we don't need to take that into account here. | |
48 | */ | |
49 | ||
383b9961 | 50 | return (win < 8) ? WIN0_OFF(win) : WIN8_OFF(win); |
794d15b2 SS |
51 | } |
52 | ||
b6d1c33a AL |
53 | /* |
54 | * Description of the windows needed by the platform code | |
55 | */ | |
56 | static struct __initdata orion_addr_map_cfg addr_map_cfg = { | |
57 | .num_wins = 14, | |
58 | .remappable_wins = 8, | |
59 | .win_cfg_base = win_cfg_base, | |
60 | }; | |
794d15b2 SS |
61 | |
62 | void __init mv78xx0_setup_cpu_mbus(void) | |
63 | { | |
794d15b2 | 64 | /* |
b6d1c33a | 65 | * Disable, clear and configure windows. |
794d15b2 | 66 | */ |
b6d1c33a | 67 | orion_config_wins(&addr_map_cfg, NULL); |
794d15b2 SS |
68 | |
69 | /* | |
70 | * Setup MBUS dram target info. | |
71 | */ | |
794d15b2 | 72 | if (mv78xx0_core_index() == 0) |
b6d1c33a | 73 | orion_setup_cpu_mbus_target(&addr_map_cfg, |
b6d1c33a | 74 | DDR_WINDOW_CPU0_BASE); |
794d15b2 | 75 | else |
b6d1c33a | 76 | orion_setup_cpu_mbus_target(&addr_map_cfg, |
b6d1c33a | 77 | DDR_WINDOW_CPU1_BASE); |
794d15b2 SS |
78 | } |
79 | ||
80 | void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size, | |
81 | int maj, int min) | |
82 | { | |
b6d1c33a AL |
83 | orion_setup_cpu_win(&addr_map_cfg, window, base, size, |
84 | TARGET_PCIE(maj), ATTR_PCIE_IO(min), -1); | |
794d15b2 SS |
85 | } |
86 | ||
87 | void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size, | |
88 | int maj, int min) | |
89 | { | |
b6d1c33a AL |
90 | orion_setup_cpu_win(&addr_map_cfg, window, base, size, |
91 | TARGET_PCIE(maj), ATTR_PCIE_MEM(min), -1); | |
794d15b2 | 92 | } |