mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 14:10:43 +00:00
837933a620
Add device identification for J7200 SoC Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Suman Anna <s-anna@ti.com>
128 lines
2.4 KiB
C
128 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Dave Gerlach <d-gerlach@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <soc.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#define AM65X 0xbb5a
|
|
#define J721E 0xbb64
|
|
#define J7200 0xbb6d
|
|
|
|
#define REV_SR1_0 0
|
|
#define REV_SR2_0 1
|
|
|
|
#define JTAG_ID_VARIANT_SHIFT 28
|
|
#define JTAG_ID_VARIANT_MASK (0xf << 28)
|
|
#define JTAG_ID_PARTNO_SHIFT 12
|
|
#define JTAG_ID_PARTNO_MASK (0xffff << 12)
|
|
|
|
struct soc_ti_k3_platdata {
|
|
const char *family;
|
|
const char *revision;
|
|
};
|
|
|
|
static const char *get_family_string(u32 idreg)
|
|
{
|
|
const char *family;
|
|
u32 soc;
|
|
|
|
soc = (idreg & JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
|
|
|
|
switch (soc) {
|
|
case AM65X:
|
|
family = "AM65X";
|
|
break;
|
|
case J721E:
|
|
family = "J721E";
|
|
break;
|
|
case J7200:
|
|
family = "J7200";
|
|
break;
|
|
default:
|
|
family = "Unknown Silicon";
|
|
};
|
|
|
|
return family;
|
|
}
|
|
|
|
static const char *get_rev_string(u32 idreg)
|
|
{
|
|
const char *revision;
|
|
u32 rev;
|
|
|
|
rev = (idreg & JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
|
|
|
|
switch (rev) {
|
|
case REV_SR1_0:
|
|
revision = "1.0";
|
|
break;
|
|
case REV_SR2_0:
|
|
revision = "2.0";
|
|
break;
|
|
default:
|
|
revision = "Unknown Revision";
|
|
};
|
|
|
|
return revision;
|
|
}
|
|
|
|
static int soc_ti_k3_get_family(struct udevice *dev, char *buf, int size)
|
|
{
|
|
struct soc_ti_k3_platdata *plat = dev_get_platdata(dev);
|
|
|
|
snprintf(buf, size, "%s", plat->family);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int soc_ti_k3_get_revision(struct udevice *dev, char *buf, int size)
|
|
{
|
|
struct soc_ti_k3_platdata *plat = dev_get_platdata(dev);
|
|
|
|
snprintf(buf, size, "SR%s", plat->revision);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct soc_ops soc_ti_k3_ops = {
|
|
.get_family = soc_ti_k3_get_family,
|
|
.get_revision = soc_ti_k3_get_revision,
|
|
};
|
|
|
|
int soc_ti_k3_probe(struct udevice *dev)
|
|
{
|
|
struct soc_ti_k3_platdata *plat = dev_get_platdata(dev);
|
|
u32 idreg;
|
|
void *idreg_addr;
|
|
|
|
idreg_addr = dev_read_addr_ptr(dev);
|
|
if (!idreg_addr)
|
|
return -EINVAL;
|
|
|
|
idreg = readl(idreg_addr);
|
|
|
|
plat->family = get_family_string(idreg);
|
|
plat->revision = get_rev_string(idreg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id soc_ti_k3_ids[] = {
|
|
{ .compatible = "ti,am654-chipid" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(soc_ti_k3) = {
|
|
.name = "soc_ti_k3",
|
|
.id = UCLASS_SOC,
|
|
.ops = &soc_ti_k3_ops,
|
|
.of_match = soc_ti_k3_ids,
|
|
.probe = soc_ti_k3_probe,
|
|
.platdata_auto_alloc_size = sizeof(struct soc_ti_k3_platdata),
|
|
};
|