u-boot/drivers/ata/dwc_ahci.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

99 lines
2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* DWC SATA platform driver
*
* (C) Copyright 2016
* Texas Instruments Incorporated, <www.ti.com>
*
* Author: Mugunthan V N <mugunthanvnm@ti.com>
*/
#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),
};