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1 /*
2  * Copyright (C) 2014 Stefan Roese <sr@denx.de>
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <miiphy.h>
9 #include <asm/io.h>
10 #include <asm/arch/cpu.h>
11 #include <asm/arch/soc.h>
12 #include <linux/mbus.h>
13
14 #include "../drivers/ddr/mvebu/ddr3_hw_training.h"
15 #include "../arch/arm/mach-mvebu/serdes/high_speed_env_spec.h"
16
17 DECLARE_GLOBAL_DATA_PTR;
18
19 /* Base addresses for the external device chip selects */
20 #define DEV_CS0_BASE            0xe0000000
21 #define DEV_CS1_BASE            0xe1000000
22 #define DEV_CS2_BASE            0xe2000000
23 #define DEV_CS3_BASE            0xe3000000
24
25 /* DDR3 static configuration */
26 MV_DRAM_MC_INIT ddr3_b0_maxbcm[MV_MAX_DDR3_STATIC_SIZE] = {
27         {0x00001400, 0x7301CC30},       /* DDR SDRAM Configuration Register */
28         {0x00001404, 0x30000820},       /* Dunit Control Low Register */
29         {0x00001408, 0x5515BAAB},       /* DDR SDRAM Timing (Low) Register */
30         {0x0000140C, 0x38DA3F97},       /* DDR SDRAM Timing (High) Register */
31         {0x00001410, 0x20100005},       /* DDR SDRAM Address Control Register */
32         {0x00001414, 0x0000F3FF},       /* DDR SDRAM Open Pages Control Reg */
33         {0x00001418, 0x00000e00},       /* DDR SDRAM Operation Register */
34         {0x0000141C, 0x00000672},       /* DDR SDRAM Mode Register */
35         {0x00001420, 0x00000004},       /* DDR SDRAM Extended Mode Register */
36         {0x00001424, 0x0000F3FF},       /* Dunit Control High Register */
37         {0x00001428, 0x0011A940},       /* Dunit Control High Register */
38         {0x0000142C, 0x014C5134},       /* Dunit Control High Register */
39         {0x0000147C, 0x0000D771},
40
41         {0x00001494, 0x00010000},       /* DDR SDRAM ODT Control (Low) Reg */
42         {0x0000149C, 0x00000001},       /* DDR Dunit ODT Control Register */
43         {0x000014A0, 0x00000001},
44         {0x000014A8, 0x00000101},
45
46         /* Recommended Settings from Marvell for 4 x 16 bit devices: */
47         {0x000014C0, 0x192424C9},       /* DRAM addr and Ctrl Driving Strenght*/
48         {0x000014C4, 0xAAA24C9},        /* DRAM Data and DQS Driving Strenght */
49
50         /*
51          * DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the
52          * training sequence
53          */
54         {0x000200e8, 0x3FFF0E01},
55         {0x00020184, 0x3FFFFFE0},       /* Close fast path Window to - 2G */
56
57         {0x0001504, 0x3FFFFFE1},        /* CS0 Size */
58         {0x000150C, 0x00000000},        /* CS1 Size */
59         {0x0001514, 0x00000000},        /* CS2 Size */
60         {0x000151C, 0x00000000},        /* CS3 Size */
61
62         {0x0020220, 0x00000007},        /* Reserved */
63
64         {0x00001538, 0x0000000B},       /* Read Data Sample Delays Register */
65         {0x0000153C, 0x0000000B},       /* Read Data Ready Delay Register */
66
67         {0x000015D0, 0x00000670},       /* MR0 */
68         {0x000015D4, 0x00000044},       /* MR1 */
69         {0x000015D8, 0x00000018},       /* MR2 */
70         {0x000015DC, 0x00000000},       /* MR3 */
71         {0x000015E0, 0x00000001},
72         {0x000015E4, 0x00203c18},       /* ZQDS Configuration Register */
73         {0x000015EC, 0xF800A225},       /* DDR PHY */
74
75         {0x0, 0x0}
76 };
77
78 MV_DRAM_MODES maxbcm_ddr_modes[MV_DDR3_MODES_NUMBER] = {
79         {"maxbcm_1600-800", 0xB, 0x5, 0x0, A0, ddr3_b0_maxbcm,  NULL},
80 };
81
82 extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];
83
84 /* MAXBCM: SERDES 0-4 PCIE, Serdes 7 = SGMII 0, all others =  unconnected */
85 MV_BIN_SERDES_CFG maxbcm_serdes_cfg[] = {
86         { MV_PEX_ROOT_COMPLEX, 0x20011111, 0x00000000,
87           { PEX_BUS_MODE_X1, PEX_BUS_MODE_X1, PEX_BUS_DISABLED,
88             PEX_BUS_DISABLED },
89           0x1f, serdes_change_m_phy
90         }
91 };
92
93 MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
94 {
95         /* Only one mode supported for this board */
96         return &maxbcm_ddr_modes[0];
97 }
98
99 MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
100 {
101         return &maxbcm_serdes_cfg[0];
102 }
103
104 int board_early_init_f(void)
105 {
106         /*
107          * Don't configure MPP (pin multiplexing) and GPIO here,
108          * its already done in bin_hdr
109          */
110
111         /*
112          * Setup some board specific mbus address windows
113          */
114         mbus_dt_setup_win(&mbus_state, DEV_CS0_BASE, 16 << 20,
115                           CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS0);
116         mbus_dt_setup_win(&mbus_state, DEV_CS1_BASE, 16 << 20,
117                           CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
118         mbus_dt_setup_win(&mbus_state, DEV_CS2_BASE, 16 << 20,
119                           CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS2);
120         mbus_dt_setup_win(&mbus_state, DEV_CS3_BASE, 16 << 20,
121                           CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS3);
122
123         return 0;
124 }
125
126 int board_init(void)
127 {
128         /* adress of boot parameters */
129         gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
130
131         return 0;
132 }
133
134 int checkboard(void)
135 {
136         puts("Board: maxBCM\n");
137
138         return 0;
139 }
140
141 #ifdef CONFIG_RESET_PHY_R
142 /* Configure and enable MV88E6185 switch */
143 void reset_phy(void)
144 {
145         char *name = "neta0";
146
147         if (miiphy_set_current_dev(name))
148                 return;
149
150         /* todo: fill this with the real setup / config code */
151
152         printf("88E6185 Initialized on %s\n", name);
153 }
154 #endif /* CONFIG_RESET_PHY_R */