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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
679b994a MS |
2 | /* |
3 | * (C) Copyright 2015 - 2016 Xilinx, Inc. | |
174d7284 | 4 | * Michal Simek <[email protected]> |
679b994a | 5 | */ |
49c4c78e | 6 | #include <dm.h> |
679b994a | 7 | #include <ahci.h> |
f6f5451d | 8 | #include <generic-phy.h> |
f7ae49fc | 9 | #include <log.h> |
f6f5451d | 10 | #include <reset.h> |
679b994a | 11 | #include <scsi.h> |
679b994a | 12 | #include <asm/io.h> |
f6f5451d | 13 | #include <dm/device_compat.h> |
d2ebc382 | 14 | #include <linux/ioport.h> |
679b994a MS |
15 | |
16 | /* Vendor Specific Register Offsets */ | |
17 | #define AHCI_VEND_PCFG 0xA4 | |
18 | #define AHCI_VEND_PPCFG 0xA8 | |
19 | #define AHCI_VEND_PP2C 0xAC | |
20 | #define AHCI_VEND_PP3C 0xB0 | |
21 | #define AHCI_VEND_PP4C 0xB4 | |
22 | #define AHCI_VEND_PP5C 0xB8 | |
79ed61e9 | 23 | #define AHCI_VEND_AXICC 0xBc |
679b994a MS |
24 | #define AHCI_VEND_PAXIC 0xC0 |
25 | #define AHCI_VEND_PTC 0xC8 | |
26 | ||
27 | /* Vendor Specific Register bit definitions */ | |
28 | #define PAXIC_ADBW_BW64 0x1 | |
29 | #define PAXIC_MAWIDD (1 << 8) | |
30 | #define PAXIC_MARIDD (1 << 16) | |
31 | #define PAXIC_OTL (0x4 << 20) | |
32 | ||
33 | #define PCFG_TPSS_VAL (0x32 << 16) | |
34 | #define PCFG_TPRS_VAL (0x2 << 12) | |
35 | #define PCFG_PAD_VAL 0x2 | |
36 | ||
37 | #define PPCFG_TTA 0x1FFFE | |
38 | #define PPCFG_PSSO_EN (1 << 28) | |
39 | #define PPCFG_PSS_EN (1 << 29) | |
40 | #define PPCFG_ESDF_EN (1 << 31) | |
41 | ||
42 | #define PP2C_CIBGMN 0x0F | |
43 | #define PP2C_CIBGMX (0x25 << 8) | |
44 | #define PP2C_CIBGN (0x18 << 16) | |
45 | #define PP2C_CINMP (0x29 << 24) | |
46 | ||
47 | #define PP3C_CWBGMN 0x04 | |
48 | #define PP3C_CWBGMX (0x0B << 8) | |
49 | #define PP3C_CWBGN (0x08 << 16) | |
50 | #define PP3C_CWNMP (0x0F << 24) | |
51 | ||
52 | #define PP4C_BMX 0x0a | |
53 | #define PP4C_BNM (0x08 << 8) | |
54 | #define PP4C_SFD (0x4a << 16) | |
55 | #define PP4C_PTST (0x06 << 24) | |
56 | ||
57 | #define PP5C_RIT 0x60216 | |
58 | #define PP5C_RCT (0x7f0 << 20) | |
59 | ||
60 | #define PTC_RX_WM_VAL 0x40 | |
61 | #define PTC_RSVD (1 << 27) | |
62 | ||
63 | #define PORT0_BASE 0x100 | |
64 | #define PORT1_BASE 0x180 | |
65 | ||
66 | /* Port Control Register Bit Definitions */ | |
67 | #define PORT_SCTL_SPD_GEN3 (0x3 << 4) | |
68 | #define PORT_SCTL_SPD_GEN2 (0x2 << 4) | |
69 | #define PORT_SCTL_SPD_GEN1 (0x1 << 4) | |
70 | #define PORT_SCTL_IPM (0x3 << 8) | |
71 | ||
72 | #define PORT_BASE 0x100 | |
73 | #define PORT_OFFSET 0x80 | |
74 | #define NR_PORTS 2 | |
75 | #define DRV_NAME "ahci-ceva" | |
76 | #define CEVA_FLAG_BROKEN_GEN2 1 | |
77 | ||
79ed61e9 YT |
78 | /* flag bit definition */ |
79 | #define FLAG_COHERENT 1 | |
80 | ||
81 | /* register config value */ | |
82 | #define CEVA_PHY1_CFG 0xa003fffe | |
83 | #define CEVA_PHY2_CFG 0x28184d1f | |
84 | #define CEVA_PHY3_CFG 0x0e081509 | |
85 | #define CEVA_TRANS_CFG 0x08000029 | |
86 | #define CEVA_AXICC_CFG 0x3fffffff | |
87 | ||
df983a76 | 88 | /* for ls1021a */ |
aaaffe90 | 89 | #define LS1021_AHCI_VEND_AXICC 0xC0 |
df983a76 PM |
90 | #define LS1021_CEVA_PHY2_CFG 0x28183414 |
91 | #define LS1021_CEVA_PHY3_CFG 0x0e080e06 | |
92 | #define LS1021_CEVA_PHY4_CFG 0x064a080b | |
93 | #define LS1021_CEVA_PHY5_CFG 0x2aa86470 | |
94 | ||
d2ebc382 PM |
95 | /* ecc val pair */ |
96 | #define ECC_DIS_VAL_CH1 0x00020000 | |
aaaffe90 | 97 | #define ECC_DIS_VAL_CH2 0x80000000 |
d2ebc382 | 98 | #define ECC_DIS_VAL_CH3 0x40000000 |
79ed61e9 YT |
99 | |
100 | enum ceva_soc { | |
101 | CEVA_1V84, | |
102 | CEVA_LS1012A, | |
df983a76 | 103 | CEVA_LS1021A, |
d2ebc382 | 104 | CEVA_LS1028A, |
822d0608 | 105 | CEVA_LS1043A, |
5fcae597 | 106 | CEVA_LS1046A, |
aaaffe90 | 107 | CEVA_LS1088A, |
1039d1ac | 108 | CEVA_LS2080A, |
79ed61e9 YT |
109 | }; |
110 | ||
c3898a88 MS |
111 | struct ceva_sata_priv { |
112 | ulong base; | |
d2ebc382 | 113 | ulong ecc_base; |
79ed61e9 YT |
114 | enum ceva_soc soc; |
115 | ulong flag; | |
c3898a88 MS |
116 | }; |
117 | ||
79ed61e9 | 118 | static int ceva_init_sata(struct ceva_sata_priv *priv) |
679b994a | 119 | { |
d2ebc382 | 120 | ulong ecc_addr = priv->ecc_base; |
79ed61e9 | 121 | ulong base = priv->base; |
679b994a | 122 | ulong tmp; |
679b994a | 123 | |
79ed61e9 YT |
124 | switch (priv->soc) { |
125 | case CEVA_1V84: | |
126 | tmp = PAXIC_ADBW_BW64 | PAXIC_MAWIDD | PAXIC_MARIDD | PAXIC_OTL; | |
127 | writel(tmp, base + AHCI_VEND_PAXIC); | |
128 | tmp = PCFG_TPSS_VAL | PCFG_TPRS_VAL | PCFG_PAD_VAL; | |
129 | writel(tmp, base + AHCI_VEND_PCFG); | |
130 | tmp = PPCFG_TTA | PPCFG_PSS_EN | PPCFG_ESDF_EN; | |
131 | writel(tmp, base + AHCI_VEND_PPCFG); | |
679b994a | 132 | tmp = PTC_RX_WM_VAL | PTC_RSVD; |
79ed61e9 YT |
133 | writel(tmp, base + AHCI_VEND_PTC); |
134 | break; | |
135 | ||
df983a76 | 136 | case CEVA_LS1021A: |
d2ebc382 PM |
137 | if (!ecc_addr) |
138 | return -EINVAL; | |
139 | writel(ECC_DIS_VAL_CH1, ecc_addr); | |
df983a76 PM |
140 | writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG); |
141 | writel(LS1021_CEVA_PHY2_CFG, base + AHCI_VEND_PP2C); | |
142 | writel(LS1021_CEVA_PHY3_CFG, base + AHCI_VEND_PP3C); | |
143 | writel(LS1021_CEVA_PHY4_CFG, base + AHCI_VEND_PP4C); | |
144 | writel(LS1021_CEVA_PHY5_CFG, base + AHCI_VEND_PP5C); | |
145 | writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC); | |
df983a76 PM |
146 | break; |
147 | ||
79ed61e9 | 148 | case CEVA_LS1012A: |
822d0608 | 149 | case CEVA_LS1043A: |
5fcae597 | 150 | case CEVA_LS1046A: |
d2ebc382 PM |
151 | if (!ecc_addr) |
152 | return -EINVAL; | |
153 | writel(ECC_DIS_VAL_CH2, ecc_addr); | |
1039d1ac PM |
154 | /* fallthrough */ |
155 | case CEVA_LS2080A: | |
aaaffe90 PM |
156 | writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG); |
157 | writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC); | |
aaaffe90 PM |
158 | break; |
159 | ||
d2ebc382 | 160 | case CEVA_LS1028A: |
aaaffe90 | 161 | case CEVA_LS1088A: |
d2ebc382 PM |
162 | if (!ecc_addr) |
163 | return -EINVAL; | |
164 | writel(ECC_DIS_VAL_CH3, ecc_addr); | |
79ed61e9 YT |
165 | writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG); |
166 | writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC); | |
79ed61e9 | 167 | break; |
679b994a | 168 | } |
79ed61e9 | 169 | |
d2ebc382 PM |
170 | if (priv->flag & FLAG_COHERENT) |
171 | writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC); | |
172 | ||
679b994a MS |
173 | return 0; |
174 | } | |
49c4c78e | 175 | |
c3898a88 | 176 | static int sata_ceva_bind(struct udevice *dev) |
49c4c78e | 177 | { |
c3898a88 MS |
178 | struct udevice *scsi_dev; |
179 | ||
180 | return ahci_bind_scsi(dev, &scsi_dev); | |
181 | } | |
49c4c78e | 182 | |
c3898a88 MS |
183 | static int sata_ceva_probe(struct udevice *dev) |
184 | { | |
185 | struct ceva_sata_priv *priv = dev_get_priv(dev); | |
f6f5451d MS |
186 | struct phy phy; |
187 | int ret; | |
188 | struct reset_ctl_bulk resets; | |
189 | ||
190 | ret = generic_phy_get_by_index(dev, 0, &phy); | |
191 | if (!ret) { | |
192 | dev_dbg(dev, "Perform PHY initialization\n"); | |
193 | ret = generic_phy_init(&phy); | |
194 | if (ret) | |
195 | return ret; | |
196 | } else if (ret != -ENOENT) { | |
197 | dev_dbg(dev, "could not get phy (err %d)\n", ret); | |
198 | return ret; | |
199 | } | |
200 | ||
201 | /* reset is optional */ | |
202 | ret = reset_get_bulk(dev, &resets); | |
203 | if (ret && ret != -ENOTSUPP && ret != -ENOENT) { | |
204 | dev_dbg(dev, "Getting reset fails (err %d)\n", ret); | |
205 | return ret; | |
206 | } | |
207 | ||
208 | /* Just trigger reset when reset is specified */ | |
209 | if (!ret) { | |
210 | dev_dbg(dev, "Perform IP reset\n"); | |
211 | ret = reset_deassert_bulk(&resets); | |
212 | if (ret) { | |
213 | dev_dbg(dev, "Reset fails (err %d)\n", ret); | |
214 | reset_release_bulk(&resets); | |
215 | return ret; | |
216 | } | |
217 | } | |
218 | ||
017ae492 | 219 | if (generic_phy_valid(&phy)) { |
f6f5451d MS |
220 | dev_dbg(dev, "Perform PHY power on\n"); |
221 | ret = generic_phy_power_on(&phy); | |
222 | if (ret) { | |
223 | dev_dbg(dev, "PHY power on failed (err %d)\n", ret); | |
224 | return ret; | |
225 | } | |
226 | } | |
7cf1afce | 227 | |
79ed61e9 | 228 | ceva_init_sata(priv); |
cba64a2a | 229 | |
c3898a88 | 230 | return ahci_probe_scsi(dev, priv->base); |
49c4c78e MS |
231 | } |
232 | ||
233 | static const struct udevice_id sata_ceva_ids[] = { | |
79ed61e9 YT |
234 | { .compatible = "ceva,ahci-1v84", .data = CEVA_1V84 }, |
235 | { .compatible = "fsl,ls1012a-ahci", .data = CEVA_LS1012A }, | |
df983a76 | 236 | { .compatible = "fsl,ls1021a-ahci", .data = CEVA_LS1021A }, |
d2ebc382 | 237 | { .compatible = "fsl,ls1028a-ahci", .data = CEVA_LS1028A }, |
822d0608 | 238 | { .compatible = "fsl,ls1043a-ahci", .data = CEVA_LS1043A }, |
5fcae597 | 239 | { .compatible = "fsl,ls1046a-ahci", .data = CEVA_LS1046A }, |
aaaffe90 | 240 | { .compatible = "fsl,ls1088a-ahci", .data = CEVA_LS1088A }, |
1039d1ac | 241 | { .compatible = "fsl,ls2080a-ahci", .data = CEVA_LS2080A }, |
49c4c78e MS |
242 | { } |
243 | }; | |
244 | ||
d1998a9f | 245 | static int sata_ceva_of_to_plat(struct udevice *dev) |
49c4c78e | 246 | { |
c3898a88 | 247 | struct ceva_sata_priv *priv = dev_get_priv(dev); |
d2ebc382 PM |
248 | struct resource res_regs; |
249 | int ret; | |
49c4c78e | 250 | |
79ed61e9 YT |
251 | if (dev_read_bool(dev, "dma-coherent")) |
252 | priv->flag |= FLAG_COHERENT; | |
253 | ||
254 | priv->base = dev_read_addr(dev); | |
c3898a88 | 255 | if (priv->base == FDT_ADDR_T_NONE) |
49c4c78e MS |
256 | return -EINVAL; |
257 | ||
cde9b147 | 258 | ret = dev_read_resource_byname(dev, "sata-ecc", &res_regs); |
d2ebc382 PM |
259 | if (ret) |
260 | priv->ecc_base = 0; | |
261 | else | |
262 | priv->ecc_base = res_regs.start; | |
263 | ||
79ed61e9 YT |
264 | priv->soc = dev_get_driver_data(dev); |
265 | ||
d2ebc382 PM |
266 | debug("ccsr-sata-base %lx\t ecc-base %lx\n", |
267 | priv->base, | |
268 | priv->ecc_base); | |
269 | ||
49c4c78e MS |
270 | return 0; |
271 | } | |
272 | ||
273 | U_BOOT_DRIVER(ceva_host_blk) = { | |
274 | .name = "ceva_sata", | |
c3898a88 | 275 | .id = UCLASS_AHCI, |
49c4c78e | 276 | .of_match = sata_ceva_ids, |
c3898a88 | 277 | .bind = sata_ceva_bind, |
f6ab5a92 | 278 | .ops = &scsi_ops, |
41575d8e | 279 | .priv_auto = sizeof(struct ceva_sata_priv), |
49c4c78e | 280 | .probe = sata_ceva_probe, |
d1998a9f | 281 | .of_to_plat = sata_ceva_of_to_plat, |
49c4c78e | 282 | }; |