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11#include <common.h>
12#include <dm.h>
13#include <ahci.h>
14#include <scsi.h>
15#include <sata.h>
16#include <asm/arch/sata.h>
17#include <asm/io.h>
18#include <generic-phy.h>
19
20struct dwc_ahci_priv {
21 void *base;
22 void *wrapper_base;
23};
24
25static int dwc_ahci_bind(struct udevice *dev)
26{
27 struct udevice *scsi_dev;
28
29 return ahci_bind_scsi(dev, &scsi_dev);
30}
31
32static int dwc_ahci_of_to_plat(struct udevice *dev)
33{
34 struct dwc_ahci_priv *priv = dev_get_priv(dev);
35 fdt_addr_t addr;
36
37 priv->base = map_physmem(dev_read_addr(dev), sizeof(void *),
38 MAP_NOCACHE);
39
40 addr = devfdt_get_addr_index(dev, 1);
41 if (addr != FDT_ADDR_T_NONE) {
42 priv->wrapper_base = map_physmem(addr, sizeof(void *),
43 MAP_NOCACHE);
44 } else {
45 priv->wrapper_base = NULL;
46 }
47
48 return 0;
49}
50
51static int dwc_ahci_probe(struct udevice *dev)
52{
53 struct dwc_ahci_priv *priv = dev_get_priv(dev);
54 int ret;
55 struct phy phy;
56
57 ret = generic_phy_get_by_name(dev, "sata-phy", &phy);
58 if (ret) {
59 pr_err("can't get the phy from DT\n");
60 return ret;
61 }
62
63 ret = generic_phy_init(&phy);
64 if (ret) {
65 pr_debug("unable to initialize the sata phy\n");
66 return ret;
67 }
68
69 ret = generic_phy_power_on(&phy);
70 if (ret) {
71 pr_debug("unable to power on the sata phy\n");
72 return ret;
73 }
74
75 if (priv->wrapper_base) {
76 u32 val = TI_SATA_IDLE_NO | TI_SATA_STANDBY_NO;
77
78
79 writel(val, priv->wrapper_base + TI_SATA_SYSCONFIG);
80 }
81
82 return ahci_probe_scsi(dev, (ulong)priv->base);
83}
84
85static const struct udevice_id dwc_ahci_ids[] = {
86 { .compatible = "snps,dwc-ahci" },
87 { }
88};
89
90U_BOOT_DRIVER(dwc_ahci) = {
91 .name = "dwc_ahci",
92 .id = UCLASS_AHCI,
93 .of_match = dwc_ahci_ids,
94 .bind = dwc_ahci_bind,
95 .of_to_plat = dwc_ahci_of_to_plat,
96 .ops = &scsi_ops,
97 .probe = dwc_ahci_probe,
98 .priv_auto = sizeof(struct dwc_ahci_priv),
99};
100