2 * DWC SATA platform driver
5 * Texas Instruments Incorporated, <www.ti.com>
7 * Author: Mugunthan V N <mugunthanvnm@ti.com>
9 * SPDX-License-Identifier: GPL-2.0+
17 #include <asm/arch/sata.h>
19 #include <generic-phy.h>
21 DECLARE_GLOBAL_DATA_PTR
;
23 struct dwc_ahci_priv
{
28 static int dwc_ahci_ofdata_to_platdata(struct udevice
*dev
)
30 struct dwc_ahci_priv
*priv
= dev_get_priv(dev
);
31 struct scsi_platdata
*plat
= dev_get_uclass_platdata(dev
);
34 plat
->max_id
= fdtdec_get_uint(gd
->fdt_blob
, dev_of_offset(dev
),
35 "max-id", CONFIG_SYS_SCSI_MAX_SCSI_ID
);
36 plat
->max_lun
= fdtdec_get_uint(gd
->fdt_blob
, dev_of_offset(dev
),
37 "max-lun", CONFIG_SYS_SCSI_MAX_LUN
);
39 priv
->base
= map_physmem(devfdt_get_addr(dev
), sizeof(void *),
42 addr
= devfdt_get_addr_index(dev
, 1);
43 if (addr
!= FDT_ADDR_T_NONE
) {
44 priv
->wrapper_base
= map_physmem(addr
, sizeof(void *),
47 priv
->wrapper_base
= NULL
;
53 static int dwc_ahci_probe(struct udevice
*dev
)
55 struct dwc_ahci_priv
*priv
= dev_get_priv(dev
);
59 ret
= generic_phy_get_by_name(dev
, "sata-phy", &phy
);
61 pr_err("can't get the phy from DT\n");
65 ret
= generic_phy_init(&phy
);
67 pr_err("unable to initialize the sata phy\n");
71 ret
= generic_phy_power_on(&phy
);
73 pr_err("unable to power on the sata phy\n");
77 if (priv
->wrapper_base
) {
78 u32 val
= TI_SATA_IDLE_NO
| TI_SATA_STANDBY_NO
;
80 /* Enable SATA module, No Idle, No Standby */
81 writel(val
, priv
->wrapper_base
+ TI_SATA_SYSCONFIG
);
84 ret
= ahci_init_dm(dev
, priv
->base
);
88 return achi_start_ports_dm(dev
);
91 static const struct udevice_id dwc_ahci_ids
[] = {
92 { .compatible
= "snps,dwc-ahci" },
96 U_BOOT_DRIVER(dwc_ahci
) = {
99 .of_match
= dwc_ahci_ids
,
100 .ofdata_to_platdata
= dwc_ahci_ofdata_to_platdata
,
102 .probe
= dwc_ahci_probe
,
103 .priv_auto_alloc_size
= sizeof(struct dwc_ahci_priv
),
104 .flags
= DM_FLAG_ALLOC_PRIV_DMA
,