1 /*
2  * (C) Copyright 2009
3  * Marvell Semiconductor <www.marvell.com>
4  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #ifndef _MVEBU_CPU_H
10 #define _MVEBU_CPU_H
11 
12 #include <asm/system.h>
13 
14 #ifndef __ASSEMBLY__
15 
16 #define MVEBU_REG_PCIE_DEVID		(MVEBU_REG_PCIE_BASE + 0x00)
17 #define MVEBU_REG_PCIE_REVID		(MVEBU_REG_PCIE_BASE + 0x08)
18 
19 enum memory_bank {
20 	BANK0,
21 	BANK1,
22 	BANK2,
23 	BANK3
24 };
25 
26 enum cpu_winen {
27 	CPU_WIN_DISABLE,
28 	CPU_WIN_ENABLE
29 };
30 
31 enum cpu_target {
32 	CPU_TARGET_DRAM = 0x0,
33 	CPU_TARGET_DEVICEBUS_BOOTROM_SPI = 0x1,
34 	CPU_TARGET_ETH23 = 0x3,
35 	CPU_TARGET_PCIE02 = 0x4,
36 	CPU_TARGET_ETH01 = 0x7,
37 	CPU_TARGET_PCIE13 = 0x8,
38 	CPU_TARGET_SASRAM = 0x9,
39 	CPU_TARGET_NAND = 0xd,
40 };
41 
42 enum cpu_attrib {
43 	CPU_ATTR_SASRAM = 0x01,
44 	CPU_ATTR_DRAM_CS0 = 0x0e,
45 	CPU_ATTR_DRAM_CS1 = 0x0d,
46 	CPU_ATTR_DRAM_CS2 = 0x0b,
47 	CPU_ATTR_DRAM_CS3 = 0x07,
48 	CPU_ATTR_NANDFLASH = 0x2f,
49 	CPU_ATTR_SPIFLASH = 0x1e,
50 	CPU_ATTR_BOOTROM = 0x1d,
51 	CPU_ATTR_PCIE_IO = 0xe0,
52 	CPU_ATTR_PCIE_MEM = 0xe8,
53 	CPU_ATTR_DEV_CS0 = 0x3e,
54 	CPU_ATTR_DEV_CS1 = 0x3d,
55 	CPU_ATTR_DEV_CS2 = 0x3b,
56 	CPU_ATTR_DEV_CS3 = 0x37,
57 };
58 
59 enum {
60 	MVEBU_SOC_AXP,
61 	MVEBU_SOC_A38X,
62 	MVEBU_SOC_UNKNOWN,
63 };
64 
65 /*
66  * Default Device Address MAP BAR values
67  */
68 #define MBUS_PCI_MEM_BASE	0xE8000000
69 #define MBUS_PCI_MEM_SIZE	(128 << 20)
70 #define MBUS_PCI_IO_BASE	0xF1100000
71 #define MBUS_PCI_IO_SIZE	(64 << 10)
72 #define MBUS_SPI_BASE		0xF4000000
73 #define MBUS_SPI_SIZE		(8 << 20)
74 #define MBUS_BOOTROM_BASE	0xF8000000
75 #define MBUS_BOOTROM_SIZE	(8 << 20)
76 
77 struct mbus_win {
78 	u32 base;
79 	u32 size;
80 	u8 target;
81 	u8 attr;
82 };
83 
84 /*
85  * System registers
86  * Ref: Datasheet sec:A.28
87  */
88 struct mvebu_system_registers {
89 	u8 pad1[0x60];
90 	u32 rstoutn_mask; /* 0x60 */
91 	u32 sys_soft_rst; /* 0x64 */
92 };
93 
94 /*
95  * GPIO Registers
96  * Ref: Datasheet sec:A.19
97  */
98 struct kwgpio_registers {
99 	u32 dout;
100 	u32 oe;
101 	u32 blink_en;
102 	u32 din_pol;
103 	u32 din;
104 	u32 irq_cause;
105 	u32 irq_mask;
106 	u32 irq_level;
107 };
108 
109 struct sar_freq_modes {
110 	u8 val;
111 	u8 ffc;		/* Fabric Frequency Configuration */
112 	u32 p_clk;
113 	u32 nb_clk;
114 	u32 d_clk;
115 };
116 
117 /* Needed for dynamic (board-specific) mbus configuration */
118 extern struct mvebu_mbus_state mbus_state;
119 
120 /*
121  * functions
122  */
123 unsigned int mvebu_sdram_bar(enum memory_bank bank);
124 unsigned int mvebu_sdram_bs(enum memory_bank bank);
125 void mvebu_sdram_size_adjust(enum memory_bank bank);
126 int mvebu_mbus_probe(struct mbus_win windows[], int count);
127 int mvebu_soc_family(void);
128 u32 mvebu_get_nand_clock(void);
129 
130 void return_to_bootrom(void);
131 
132 int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks);
133 
134 void get_sar_freq(struct sar_freq_modes *sar_freq);
135 
136 /*
137  * Highspeed SERDES PHY config init, ported from bin_hdr
138  * to mainline U-Boot
139  */
140 int serdes_phy_config(void);
141 
142 /*
143  * DDR3 init / training code ported from Marvell bin_hdr. Now
144  * available in mainline U-Boot in:
145  * drivers/ddr/marvell
146  */
147 int ddr3_init(void);
148 #endif /* __ASSEMBLY__ */
149 #endif /* _MVEBU_CPU_H */
150