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path: root/drivers/soc/ti/k3-socinfo.c
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Diffstat (limited to 'drivers/soc/ti/k3-socinfo.c')
-rw-r--r--drivers/soc/ti/k3-socinfo.c73
1 files changed, 57 insertions, 16 deletions
diff --git a/drivers/soc/ti/k3-socinfo.c b/drivers/soc/ti/k3-socinfo.c
index 7fc3548e08..59101bf7cf 100644
--- a/drivers/soc/ti/k3-socinfo.c
+++ b/drivers/soc/ti/k3-socinfo.c
@@ -33,19 +33,35 @@
#define CTRLMMR_WKUP_JTAGID_MFG_TI 0x17
+#define JTAG_ID_PARTNO_AM65X 0xBB5A
+#define JTAG_ID_PARTNO_J721E 0xBB64
+#define JTAG_ID_PARTNO_J7200 0xBB6D
+#define JTAG_ID_PARTNO_AM64X 0xBB38
+#define JTAG_ID_PARTNO_J721S2 0xBB75
+#define JTAG_ID_PARTNO_AM62X 0xBB7E
+#define JTAG_ID_PARTNO_J784S4 0xBB80
+#define JTAG_ID_PARTNO_AM62AX 0xBB8D
+#define JTAG_ID_PARTNO_AM62PX 0xBB9D
+#define JTAG_ID_PARTNO_J722S 0xBBA0
+
static const struct k3_soc_id {
unsigned int id;
const char *family_name;
} k3_soc_ids[] = {
- { 0xBB5A, "AM65X" },
- { 0xBB64, "J721E" },
- { 0xBB6D, "J7200" },
- { 0xBB38, "AM64X" },
- { 0xBB75, "J721S2"},
- { 0xBB7E, "AM62X" },
- { 0xBB80, "J784S4" },
- { 0xBB8D, "AM62AX" },
- { 0xBB9D, "AM62PX" },
+ { JTAG_ID_PARTNO_AM65X, "AM65X" },
+ { JTAG_ID_PARTNO_J721E, "J721E" },
+ { JTAG_ID_PARTNO_J7200, "J7200" },
+ { JTAG_ID_PARTNO_AM64X, "AM64X" },
+ { JTAG_ID_PARTNO_J721S2, "J721S2"},
+ { JTAG_ID_PARTNO_AM62X, "AM62X" },
+ { JTAG_ID_PARTNO_J784S4, "J784S4" },
+ { JTAG_ID_PARTNO_AM62AX, "AM62AX" },
+ { JTAG_ID_PARTNO_AM62PX, "AM62PX" },
+ { JTAG_ID_PARTNO_J722S, "J722S" },
+};
+
+static const char * const j721e_rev_string_map[] = {
+ "1.0", "1.1",
};
static int
@@ -63,6 +79,32 @@ k3_chipinfo_partno_to_names(unsigned int partno,
return -ENODEV;
}
+static int
+k3_chipinfo_variant_to_sr(unsigned int partno, unsigned int variant,
+ struct soc_device_attribute *soc_dev_attr)
+{
+ switch (partno) {
+ case JTAG_ID_PARTNO_J721E:
+ if (variant >= ARRAY_SIZE(j721e_rev_string_map))
+ goto err_unknown_variant;
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "SR%s",
+ j721e_rev_string_map[variant]);
+ break;
+ default:
+ variant++;
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "SR%x.0",
+ variant);
+ }
+
+ if (!soc_dev_attr->revision)
+ return -ENOMEM;
+
+ return 0;
+
+err_unknown_variant:
+ return -ENODEV;
+}
+
static int k3_chipinfo_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
@@ -94,7 +136,6 @@ static int k3_chipinfo_probe(struct platform_device *pdev)
variant = (jtag_id & CTRLMMR_WKUP_JTAGID_VARIANT_MASK) >>
CTRLMMR_WKUP_JTAGID_VARIANT_SHIFT;
- variant++;
partno_id = (jtag_id & CTRLMMR_WKUP_JTAGID_PARTNO_MASK) >>
CTRLMMR_WKUP_JTAGID_PARTNO_SHIFT;
@@ -103,16 +144,16 @@ static int k3_chipinfo_probe(struct platform_device *pdev)
if (!soc_dev_attr)
return -ENOMEM;
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "SR%x.0", variant);
- if (!soc_dev_attr->revision) {
- ret = -ENOMEM;
+ ret = k3_chipinfo_partno_to_names(partno_id, soc_dev_attr);
+ if (ret) {
+ dev_err(dev, "Unknown SoC JTAGID[0x%08X]: %d\n", jtag_id, ret);
goto err;
}
- ret = k3_chipinfo_partno_to_names(partno_id, soc_dev_attr);
+ ret = k3_chipinfo_variant_to_sr(partno_id, variant, soc_dev_attr);
if (ret) {
- dev_err(dev, "Unknown SoC JTAGID[0x%08X]: %d\n", jtag_id, ret);
- goto err_free_rev;
+ dev_err(dev, "Unknown SoC SR[0x%08X]: %d\n", jtag_id, ret);
+ goto err;
}
node = of_find_node_by_path("/");