2 * arch/arm/mach-dove/addr-map.c
4 * Address map functions for Marvell Dove 88AP510 SoC
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.
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/mbus.h>
15 #include <asm/mach/arch.h>
16 #include <asm/setup.h>
17 #include <mach/dove.h>
18 #include <plat/addr-map.h>
22 * Generic Address Decode Windows bit settings
24 #define TARGET_DDR 0x0
25 #define TARGET_BOOTROM 0x1
26 #define TARGET_CESA 0x3
27 #define TARGET_PCIE0 0x4
28 #define TARGET_PCIE1 0x8
29 #define TARGET_SCRATCHPAD 0xd
31 #define ATTR_CESA 0x01
32 #define ATTR_BOOTROM 0xfd
33 #define ATTR_DEV_SPI0_ROM 0xfe
34 #define ATTR_DEV_SPI1_ROM 0xfb
35 #define ATTR_PCIE_IO 0xe0
36 #define ATTR_PCIE_MEM 0xe8
37 #define ATTR_SCRATCHPAD 0x0
39 static inline void __iomem *ddr_map_sc(int i)
41 return (void __iomem *)(DOVE_MC_VIRT_BASE + 0x100 + ((i) << 4));
45 * Description of the windows needed by the platform code
47 static struct __initdata orion_addr_map_cfg addr_map_cfg = {
50 .bridge_virt_base = BRIDGE_VIRT_BASE,
53 static const struct __initdata orion_addr_map_info addr_map_info[] = {
55 * Windows for PCIe IO+MEM space.
57 { 0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE,
58 TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE
60 { 1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE,
61 TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE
63 { 2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE,
64 TARGET_PCIE0, ATTR_PCIE_MEM, -1
66 { 3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE,
67 TARGET_PCIE1, ATTR_PCIE_MEM, -1
70 * Window for CESA engine.
72 { 4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE,
73 TARGET_CESA, ATTR_CESA, -1
76 * Window to the BootROM for Standby and Sleep Resume
78 { 5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE,
79 TARGET_BOOTROM, ATTR_BOOTROM, -1
82 * Window to the PMU Scratch Pad space
84 { 6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE,
85 TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1
91 void __init dove_setup_cpu_mbus(void)
97 * Disable, clear and configure windows.
99 orion_config_wins(&addr_map_cfg, addr_map_info);
102 * Setup MBUS dram target info.
104 orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
106 for (i = 0, cs = 0; i < 2; i++) {
107 u32 map = readl(ddr_map_sc(i));
110 * Chip select enabled?
113 struct mbus_dram_window *w;
115 w = &orion_mbus_dram_info.cs[cs++];
117 w->mbus_attr = 0; /* CS address decoding done inside */
118 /* the DDR controller, no need to */
119 /* provide attributes */
120 w->base = map & 0xff800000;
121 w->size = 0x100000 << (((map & 0x000f0000) >> 16) - 4);
124 orion_mbus_dram_info.num_cs = cs;