mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-22 07:32:03 +00:00
1dc64f6c00
At present the two driver-model SCSI drivers use device platform data to store information that relates to the uclass. It is better to use uclass platform data in this situation. Update the code to do this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/*
|
|
* DWC SATA platform driver
|
|
*
|
|
* (C) Copyright 2016
|
|
* Texas Instruments Incorporated, <www.ti.com>
|
|
*
|
|
* Author: Mugunthan V N <mugunthanvnm@ti.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct dwc_ahci_priv {
|
|
void *base;
|
|
void *wrapper_base;
|
|
};
|
|
|
|
static int dwc_ahci_ofdata_to_platdata(struct udevice *dev)
|
|
{
|
|
struct dwc_ahci_priv *priv = dev_get_priv(dev);
|
|
struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
|
|
fdt_addr_t addr;
|
|
|
|
plat->max_id = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
|
|
"max-id", CONFIG_SYS_SCSI_MAX_SCSI_ID);
|
|
plat->max_lun = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
|
|
"max-lun", CONFIG_SYS_SCSI_MAX_LUN);
|
|
|
|
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) {
|
|
error("can't get the phy from DT\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = generic_phy_init(&phy);
|
|
if (ret) {
|
|
error("unable to initialize the sata phy\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = generic_phy_power_on(&phy);
|
|
if (ret) {
|
|
error("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_init(priv->base);
|
|
}
|
|
|
|
static const struct udevice_id dwc_ahci_ids[] = {
|
|
{ .compatible = "snps,dwc-ahci" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(dwc_ahci) = {
|
|
.name = "dwc_ahci",
|
|
.id = UCLASS_SCSI,
|
|
.of_match = dwc_ahci_ids,
|
|
.ofdata_to_platdata = dwc_ahci_ofdata_to_platdata,
|
|
.probe = dwc_ahci_probe,
|
|
.priv_auto_alloc_size = sizeof(struct dwc_ahci_priv),
|
|
.flags = DM_FLAG_ALLOC_PRIV_DMA,
|
|
};
|