1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2015 - 2016 Xilinx, Inc.
4 * Michal Simek <michal.simek@xilinx.com>
5 */
6 #include <common.h>
7 #include <dm.h>
8 #include <ahci.h>
9 #include <scsi.h>
10 #include <asm/io.h>
11
12 /* Vendor Specific Register Offsets */
13 #define AHCI_VEND_PCFG 0xA4
14 #define AHCI_VEND_PPCFG 0xA8
15 #define AHCI_VEND_PP2C 0xAC
16 #define AHCI_VEND_PP3C 0xB0
17 #define AHCI_VEND_PP4C 0xB4
18 #define AHCI_VEND_PP5C 0xB8
19 #define AHCI_VEND_AXICC 0xBc
20 #define AHCI_VEND_PAXIC 0xC0
21 #define AHCI_VEND_PTC 0xC8
22
23 /* Vendor Specific Register bit definitions */
24 #define PAXIC_ADBW_BW64 0x1
25 #define PAXIC_MAWIDD (1 << 8)
26 #define PAXIC_MARIDD (1 << 16)
27 #define PAXIC_OTL (0x4 << 20)
28
29 #define PCFG_TPSS_VAL (0x32 << 16)
30 #define PCFG_TPRS_VAL (0x2 << 12)
31 #define PCFG_PAD_VAL 0x2
32
33 #define PPCFG_TTA 0x1FFFE
34 #define PPCFG_PSSO_EN (1 << 28)
35 #define PPCFG_PSS_EN (1 << 29)
36 #define PPCFG_ESDF_EN (1 << 31)
37
38 #define PP2C_CIBGMN 0x0F
39 #define PP2C_CIBGMX (0x25 << 8)
40 #define PP2C_CIBGN (0x18 << 16)
41 #define PP2C_CINMP (0x29 << 24)
42
43 #define PP3C_CWBGMN 0x04
44 #define PP3C_CWBGMX (0x0B << 8)
45 #define PP3C_CWBGN (0x08 << 16)
46 #define PP3C_CWNMP (0x0F << 24)
47
48 #define PP4C_BMX 0x0a
49 #define PP4C_BNM (0x08 << 8)
50 #define PP4C_SFD (0x4a << 16)
51 #define PP4C_PTST (0x06 << 24)
52
53 #define PP5C_RIT 0x60216
54 #define PP5C_RCT (0x7f0 << 20)
55
56 #define PTC_RX_WM_VAL 0x40
57 #define PTC_RSVD (1 << 27)
58
59 #define PORT0_BASE 0x100
60 #define PORT1_BASE 0x180
61
62 /* Port Control Register Bit Definitions */
63 #define PORT_SCTL_SPD_GEN3 (0x3 << 4)
64 #define PORT_SCTL_SPD_GEN2 (0x2 << 4)
65 #define PORT_SCTL_SPD_GEN1 (0x1 << 4)
66 #define PORT_SCTL_IPM (0x3 << 8)
67
68 #define PORT_BASE 0x100
69 #define PORT_OFFSET 0x80
70 #define NR_PORTS 2
71 #define DRV_NAME "ahci-ceva"
72 #define CEVA_FLAG_BROKEN_GEN2 1
73
74 /* flag bit definition */
75 #define FLAG_COHERENT 1
76
77 /* register config value */
78 #define CEVA_PHY1_CFG 0xa003fffe
79 #define CEVA_PHY2_CFG 0x28184d1f
80 #define CEVA_PHY3_CFG 0x0e081509
81 #define CEVA_TRANS_CFG 0x08000029
82 #define CEVA_AXICC_CFG 0x3fffffff
83
84 /* for ls1021a */
85 #define LS1021_AHCI_VEND_AXICC 0xC0
86 #define LS1021_CEVA_PHY2_CFG 0x28183414
87 #define LS1021_CEVA_PHY3_CFG 0x0e080e06
88 #define LS1021_CEVA_PHY4_CFG 0x064a080b
89 #define LS1021_CEVA_PHY5_CFG 0x2aa86470
90
91 /* for ls1088a */
92 #define LS1088_ECC_DIS_ADDR_CH2 0x100520
93 #define LS1088_ECC_DIS_VAL_CH2 0x40000000
94
95 /* ecc addr-val pair */
96 #define ECC_DIS_ADDR_CH2 0x20140520
97 #define ECC_DIS_VAL_CH2 0x80000000
98 #define SATA_ECC_REG_ADDR 0x20220520
99 #define SATA_ECC_DISABLE 0x00020000
100
101 enum ceva_soc {
102 CEVA_1V84,
103 CEVA_LS1012A,
104 CEVA_LS1021A,
105 CEVA_LS1043A,
106 CEVA_LS1046A,
107 CEVA_LS1088A,
108 CEVA_LS2080A,
109 };
110
111 struct ceva_sata_priv {
112 ulong base;
113 enum ceva_soc soc;
114 ulong flag;
115 };
116
ceva_init_sata(struct ceva_sata_priv * priv)117 static int ceva_init_sata(struct ceva_sata_priv *priv)
118 {
119 ulong base = priv->base;
120 ulong tmp;
121
122 switch (priv->soc) {
123 case CEVA_1V84:
124 tmp = PAXIC_ADBW_BW64 | PAXIC_MAWIDD | PAXIC_MARIDD | PAXIC_OTL;
125 writel(tmp, base + AHCI_VEND_PAXIC);
126 tmp = PCFG_TPSS_VAL | PCFG_TPRS_VAL | PCFG_PAD_VAL;
127 writel(tmp, base + AHCI_VEND_PCFG);
128 tmp = PPCFG_TTA | PPCFG_PSS_EN | PPCFG_ESDF_EN;
129 writel(tmp, base + AHCI_VEND_PPCFG);
130 tmp = PTC_RX_WM_VAL | PTC_RSVD;
131 writel(tmp, base + AHCI_VEND_PTC);
132 break;
133
134 case CEVA_LS1021A:
135 writel(SATA_ECC_DISABLE, SATA_ECC_REG_ADDR);
136 writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
137 writel(LS1021_CEVA_PHY2_CFG, base + AHCI_VEND_PP2C);
138 writel(LS1021_CEVA_PHY3_CFG, base + AHCI_VEND_PP3C);
139 writel(LS1021_CEVA_PHY4_CFG, base + AHCI_VEND_PP4C);
140 writel(LS1021_CEVA_PHY5_CFG, base + AHCI_VEND_PP5C);
141 writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
142 if (priv->flag & FLAG_COHERENT)
143 writel(CEVA_AXICC_CFG, base + LS1021_AHCI_VEND_AXICC);
144 break;
145
146 case CEVA_LS1012A:
147 case CEVA_LS1043A:
148 case CEVA_LS1046A:
149 writel(ECC_DIS_VAL_CH2, ECC_DIS_ADDR_CH2);
150 /* fallthrough */
151 case CEVA_LS2080A:
152 writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
153 writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
154 if (priv->flag & FLAG_COHERENT)
155 writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC);
156 break;
157
158 case CEVA_LS1088A:
159 writel(LS1088_ECC_DIS_VAL_CH2, LS1088_ECC_DIS_ADDR_CH2);
160 writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
161 writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
162 if (priv->flag & FLAG_COHERENT)
163 writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC);
164 break;
165 }
166
167 return 0;
168 }
169
sata_ceva_bind(struct udevice * dev)170 static int sata_ceva_bind(struct udevice *dev)
171 {
172 struct udevice *scsi_dev;
173
174 return ahci_bind_scsi(dev, &scsi_dev);
175 }
176
sata_ceva_probe(struct udevice * dev)177 static int sata_ceva_probe(struct udevice *dev)
178 {
179 struct ceva_sata_priv *priv = dev_get_priv(dev);
180
181 ceva_init_sata(priv);
182
183 return ahci_probe_scsi(dev, priv->base);
184 }
185
186 static const struct udevice_id sata_ceva_ids[] = {
187 { .compatible = "ceva,ahci-1v84", .data = CEVA_1V84 },
188 { .compatible = "fsl,ls1012a-ahci", .data = CEVA_LS1012A },
189 { .compatible = "fsl,ls1021a-ahci", .data = CEVA_LS1021A },
190 { .compatible = "fsl,ls1043a-ahci", .data = CEVA_LS1043A },
191 { .compatible = "fsl,ls1046a-ahci", .data = CEVA_LS1046A },
192 { .compatible = "fsl,ls1088a-ahci", .data = CEVA_LS1088A },
193 { .compatible = "fsl,ls2080a-ahci", .data = CEVA_LS2080A },
194 { }
195 };
196
sata_ceva_ofdata_to_platdata(struct udevice * dev)197 static int sata_ceva_ofdata_to_platdata(struct udevice *dev)
198 {
199 struct ceva_sata_priv *priv = dev_get_priv(dev);
200
201 if (dev_read_bool(dev, "dma-coherent"))
202 priv->flag |= FLAG_COHERENT;
203
204 priv->base = dev_read_addr(dev);
205 if (priv->base == FDT_ADDR_T_NONE)
206 return -EINVAL;
207
208 priv->soc = dev_get_driver_data(dev);
209
210 return 0;
211 }
212
213 U_BOOT_DRIVER(ceva_host_blk) = {
214 .name = "ceva_sata",
215 .id = UCLASS_AHCI,
216 .of_match = sata_ceva_ids,
217 .bind = sata_ceva_bind,
218 .ops = &scsi_ops,
219 .priv_auto_alloc_size = sizeof(struct ceva_sata_priv),
220 .probe = sata_ceva_probe,
221 .ofdata_to_platdata = sata_ceva_ofdata_to_platdata,
222 };
223