1 /*
2  * Copyright (C) 2015 Stefan Roese <sr@denx.de>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <i2c.h>
9 #include <miiphy.h>
10 #include <netdev.h>
11 #include <asm/io.h>
12 #include <asm/arch/cpu.h>
13 #include <asm/arch/soc.h>
14 
15 #include "../drivers/ddr/marvell/a38x/ddr3_a38x_topology.h"
16 #include <../serdes/a38x/high_speed_env_spec.h>
17 
18 DECLARE_GLOBAL_DATA_PTR;
19 
20 #define ETH_PHY_CTRL_REG		0
21 #define ETH_PHY_CTRL_POWER_DOWN_BIT	11
22 #define ETH_PHY_CTRL_POWER_DOWN_MASK	(1 << ETH_PHY_CTRL_POWER_DOWN_BIT)
23 
24 /*
25  * Those values and defines are taken from the Marvell U-Boot version
26  * "u-boot-2013.01-2016_T1.0.eng_drop_v10"
27  */
28 #define DB_AMC_88F68XX_GPP_OUT_ENA_LOW					\
29 	(~(BIT(29)))
30 #define DB_AMC_88F68XX_GPP_OUT_ENA_MID					\
31 	(~(BIT(12) | BIT(17) | BIT(18) | BIT(20) | BIT(21)))
32 #define DB_AMC_88F68XX_GPP_OUT_VAL_LOW	(BIT(29))
33 #define DB_AMC_88F68XX_GPP_OUT_VAL_MID	0x0
34 #define DB_AMC_88F68XX_GPP_OUT_VAL_HIGH	0x0
35 #define DB_AMC_88F68XX_GPP_POL_LOW	0x0
36 #define DB_AMC_88F68XX_GPP_POL_MID	0x0
37 
38 static struct serdes_map board_serdes_map[] = {
39 	{PEX0, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
40 	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
41 	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
42 	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
43 	{SGMII1, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
44 	{SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}
45 };
46 
47 int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
48 {
49 	*serdes_map_array = board_serdes_map;
50 	*count = ARRAY_SIZE(board_serdes_map);
51 	return 0;
52 }
53 
54 /*
55  * Define the DDR layout / topology here in the board file. This will
56  * be used by the DDR3 init code in the SPL U-Boot version to configure
57  * the DDR3 controller.
58  */
59 static struct hws_topology_map board_topology_map = {
60 	0x1, /* active interfaces */
61 	/* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
62 	{ { { {0x1, 0, 0, 0},
63 	      {0x1, 0, 0, 0},
64 	      {0x1, 0, 0, 0},
65 	      {0x1, 0, 0, 0},
66 	      {0x1, 0, 0, 0} },
67 	    SPEED_BIN_DDR_1866L,	/* speed_bin */
68 	    BUS_WIDTH_8,		/* memory_width */
69 	    MEM_2G,			/* mem_size */
70 	    DDR_FREQ_800,		/* frequency */
71 	    0, 0,			/* cas_l cas_wl */
72 	    HWS_TEMP_LOW,		/* temperature */
73 	    HWS_TIM_DEFAULT} },		/* timing */
74 	5,				/* Num Of Bus Per Interface*/
75 	BUS_MASK_32BIT			/* Busses mask */
76 };
77 
78 struct hws_topology_map *ddr3_get_topology_map(void)
79 {
80 	/* Return the board topology as defined in the board code */
81 	return &board_topology_map;
82 }
83 
84 int board_early_init_f(void)
85 {
86 	/* Configure MPP */
87 	writel(0x11111111, MVEBU_MPP_BASE + 0x00);
88 	writel(0x11111111, MVEBU_MPP_BASE + 0x04);
89 	writel(0x55066011, MVEBU_MPP_BASE + 0x08);
90 	writel(0x05055550, MVEBU_MPP_BASE + 0x0c);
91 	writel(0x05055555, MVEBU_MPP_BASE + 0x10);
92 	writel(0x01106565, MVEBU_MPP_BASE + 0x14);
93 	writel(0x40000000, MVEBU_MPP_BASE + 0x18);
94 	writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
95 
96 	/* Set GPP Out value */
97 	writel(DB_AMC_88F68XX_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
98 	writel(DB_AMC_88F68XX_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
99 
100 	/* Set GPP Polarity */
101 	writel(DB_AMC_88F68XX_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
102 	writel(DB_AMC_88F68XX_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
103 
104 	/* Set GPP Out Enable */
105 	writel(DB_AMC_88F68XX_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
106 	writel(DB_AMC_88F68XX_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
107 
108 	return 0;
109 }
110 
111 int board_init(void)
112 {
113 	/* adress of boot parameters */
114 	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
115 
116 	return 0;
117 }
118 
119 int checkboard(void)
120 {
121 	puts("Board: Marvell DB-88F6820-AMC\n");
122 
123 	return 0;
124 }
125 
126 int board_eth_init(bd_t *bis)
127 {
128 	cpu_eth_init(bis); /* Built in controller(s) come first */
129 	return pci_eth_init(bis);
130 }
131