1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * (C) Copyright 2009
4 * Marvell Semiconductor <www.marvell.com>
5 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
6 */
7
8 #ifndef _KWCPU_H
9 #define _KWCPU_H
10
11 #include <asm/system.h>
12
13 #ifndef __ASSEMBLY__
14
15 #define KWCPU_WIN_CTRL_DATA(size, target, attr, en) (en | (target << 4) \
16 | (attr << 8) | (kw_winctrl_calcsize(size) << 16))
17
18 #define KWGBE_PORT_SERIAL_CONTROL1_REG(_x) \
19 ((_x ? KW_EGIGA1_BASE : KW_EGIGA0_BASE) + 0x44c)
20
21 #define KW_REG_PCIE_DEVID (KW_REG_PCIE_BASE + 0x00)
22 #define KW_REG_PCIE_REVID (KW_REG_PCIE_BASE + 0x08)
23 #define KW_REG_DEVICE_ID (KW_MPP_BASE + 0x34)
24 #define KW_REG_SYSRST_CNT (KW_MPP_BASE + 0x50)
25 #define SYSRST_CNT_1SEC_VAL (25*1000000)
26 #define KW_REG_MPP_OUT_DRV_REG (KW_MPP_BASE + 0xE0)
27
28 enum memory_bank {
29 BANK0,
30 BANK1,
31 BANK2,
32 BANK3
33 };
34
35 enum kwcpu_winen {
36 KWCPU_WIN_DISABLE,
37 KWCPU_WIN_ENABLE
38 };
39
40 enum kwcpu_target {
41 KWCPU_TARGET_RESERVED,
42 KWCPU_TARGET_MEMORY,
43 KWCPU_TARGET_1RESERVED,
44 KWCPU_TARGET_SASRAM,
45 KWCPU_TARGET_PCIE
46 };
47
48 enum kwcpu_attrib {
49 KWCPU_ATTR_SASRAM = 0x01,
50 KWCPU_ATTR_DRAM_CS0 = 0x0e,
51 KWCPU_ATTR_DRAM_CS1 = 0x0d,
52 KWCPU_ATTR_DRAM_CS2 = 0x0b,
53 KWCPU_ATTR_DRAM_CS3 = 0x07,
54 KWCPU_ATTR_NANDFLASH = 0x2f,
55 KWCPU_ATTR_SPIFLASH = 0x1e,
56 KWCPU_ATTR_BOOTROM = 0x1d,
57 KWCPU_ATTR_PCIE_IO = 0xe0,
58 KWCPU_ATTR_PCIE_MEM = 0xe8
59 };
60
61 /*
62 * Default Device Address MAP BAR values
63 */
64 #define KW_DEFADR_PCI_MEM 0x90000000
65 #define KW_DEFADR_PCI_IO 0xC0000000
66 #define KW_DEFADR_SASRAM 0xC8010000
67 #define KW_DEFADR_NANDF 0xD8000000
68 #define KW_DEFADR_SPIF 0xE8000000
69 #define KW_DEFADR_BOOTROM 0xF8000000
70
71 struct mbus_win {
72 u32 base;
73 u32 size;
74 u8 target;
75 u8 attr;
76 };
77
78 /*
79 * read feroceon/sheeva core extra feature register
80 * using co-proc instruction
81 */
readfr_extra_feature_reg(void)82 static inline unsigned int readfr_extra_feature_reg(void)
83 {
84 unsigned int val;
85 asm volatile ("mrc p15, 1, %0, c15, c1, 0 @ readfr exfr":"=r"
86 (val)::"cc");
87 return val;
88 }
89
90 /*
91 * write feroceon/sheeva core extra feature register
92 * using co-proc instruction
93 */
writefr_extra_feature_reg(unsigned int val)94 static inline void writefr_extra_feature_reg(unsigned int val)
95 {
96 asm volatile ("mcr p15, 1, %0, c15, c1, 0 @ writefr exfr"::"r"
97 (val):"cc");
98 isb();
99 }
100
101 /*
102 * MBus-L to Mbus Bridge Registers
103 * Ref: Datasheet sec:A.3
104 */
105 struct kwwin_registers {
106 u32 ctrl;
107 u32 base;
108 u32 remap_lo;
109 u32 remap_hi;
110 };
111
112 /*
113 * CPU control and status Registers
114 * Ref: Datasheet sec:A.3.2
115 */
116 struct kwcpu_registers {
117 u32 config; /*0x20100 */
118 u32 ctrl_stat; /*0x20104 */
119 u32 rstoutn_mask; /* 0x20108 */
120 u32 sys_soft_rst; /* 0x2010C */
121 u32 ahb_mbus_cause_irq; /* 0x20110 */
122 u32 ahb_mbus_mask_irq; /* 0x20114 */
123 u32 pad1[2];
124 u32 ftdll_config; /* 0x20120 */
125 u32 pad2;
126 u32 l2_cfg; /* 0x20128 */
127 };
128
129 /*
130 * GPIO Registers
131 * Ref: Datasheet sec:A.19
132 */
133 struct kwgpio_registers {
134 u32 dout;
135 u32 oe;
136 u32 blink_en;
137 u32 din_pol;
138 u32 din;
139 u32 irq_cause;
140 u32 irq_mask;
141 u32 irq_level;
142 };
143
144 /* Needed for dynamic (board-specific) mbus configuration */
145 extern struct mvebu_mbus_state mbus_state;
146
147 /*
148 * functions
149 */
150 unsigned int mvebu_sdram_bar(enum memory_bank bank);
151 unsigned int mvebu_sdram_bs(enum memory_bank bank);
152 void mvebu_sdram_size_adjust(enum memory_bank bank);
153 int mvebu_mbus_probe(struct mbus_win windows[], int count);
154 void mvebu_config_gpio(unsigned int gpp0_oe_val, unsigned int gpp1_oe_val,
155 unsigned int gpp0_oe, unsigned int gpp1_oe);
156 int kw_config_mpp(unsigned int mpp0_7, unsigned int mpp8_15,
157 unsigned int mpp16_23, unsigned int mpp24_31,
158 unsigned int mpp32_39, unsigned int mpp40_47,
159 unsigned int mpp48_55);
160 unsigned int kw_winctrl_calcsize(unsigned int sizeval);
161 #endif /* __ASSEMBLY__ */
162 #endif /* _KWCPU_H */
163