forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.0 KiB
99 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
|
* DWC SATA platform driver |
|
* |
|
* (C) Copyright 2016 |
|
* Texas Instruments Incorporated, <www.ti.com> |
|
* |
|
* Author: Mugunthan V N <[email protected]> |
|
*/ |
|
|
|
#include <common.h> |
|
#include <dm.h> |
|
#include <ahci.h> |
|
#include <scsi.h> |
|
#include <sata.h> |
|
#include <asm/arch/sata.h> |
|
#include <asm/io.h> |
|
#include <generic-phy.h> |
|
|
|
struct dwc_ahci_priv { |
|
void *base; |
|
void *wrapper_base; |
|
}; |
|
|
|
static int dwc_ahci_bind(struct udevice *dev) |
|
{ |
|
struct udevice *scsi_dev; |
|
|
|
return ahci_bind_scsi(dev, &scsi_dev); |
|
} |
|
|
|
static int dwc_ahci_ofdata_to_platdata(struct udevice *dev) |
|
{ |
|
struct dwc_ahci_priv *priv = dev_get_priv(dev); |
|
fdt_addr_t addr; |
|
|
|
priv->base = map_physmem(devfdt_get_addr(dev), sizeof(void *), |
|
MAP_NOCACHE); |
|
|
|
addr = devfdt_get_addr_index(dev, 1); |
|
if (addr != FDT_ADDR_T_NONE) { |
|
priv->wrapper_base = map_physmem(addr, sizeof(void *), |
|
MAP_NOCACHE); |
|
} else { |
|
priv->wrapper_base = NULL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int dwc_ahci_probe(struct udevice *dev) |
|
{ |
|
struct dwc_ahci_priv *priv = dev_get_priv(dev); |
|
int ret; |
|
struct phy phy; |
|
|
|
ret = generic_phy_get_by_name(dev, "sata-phy", &phy); |
|
if (ret) { |
|
pr_err("can't get the phy from DT\n"); |
|
return ret; |
|
} |
|
|
|
ret = generic_phy_init(&phy); |
|
if (ret) { |
|
pr_err("unable to initialize the sata phy\n"); |
|
return ret; |
|
} |
|
|
|
ret = generic_phy_power_on(&phy); |
|
if (ret) { |
|
pr_err("unable to power on the sata phy\n"); |
|
return ret; |
|
} |
|
|
|
if (priv->wrapper_base) { |
|
u32 val = TI_SATA_IDLE_NO | TI_SATA_STANDBY_NO; |
|
|
|
/* Enable SATA module, No Idle, No Standby */ |
|
writel(val, priv->wrapper_base + TI_SATA_SYSCONFIG); |
|
} |
|
|
|
return ahci_probe_scsi(dev, (ulong)priv->base); |
|
} |
|
|
|
static const struct udevice_id dwc_ahci_ids[] = { |
|
{ .compatible = "snps,dwc-ahci" }, |
|
{ } |
|
}; |
|
|
|
U_BOOT_DRIVER(dwc_ahci) = { |
|
.name = "dwc_ahci", |
|
.id = UCLASS_AHCI, |
|
.of_match = dwc_ahci_ids, |
|
.bind = dwc_ahci_bind, |
|
.ofdata_to_platdata = dwc_ahci_ofdata_to_platdata, |
|
.ops = &scsi_ops, |
|
.probe = dwc_ahci_probe, |
|
.priv_auto_alloc_size = sizeof(struct dwc_ahci_priv), |
|
};
|
|
|