From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/drivers/soc/soc_ti_k3.c | 132 ++++++++++++++++++++++++++++++++++++
1 file changed, 132 insertions(+)
create mode 100644 roms/u-boot/drivers/soc/soc_ti_k3.c
(limited to 'roms/u-boot/drivers/soc/soc_ti_k3.c')
diff --git a/roms/u-boot/drivers/soc/soc_ti_k3.c b/roms/u-boot/drivers/soc/soc_ti_k3.c
new file mode 100644
index 000000000..9abed7d49
--- /dev/null
+++ b/roms/u-boot/drivers/soc/soc_ti_k3.c
@@ -0,0 +1,132 @@
+// 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 AM64X 0xbb38
+
+#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_plat {
+ 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;
+ case AM64X:
+ family = "AM64X";
+ 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_plat *plat = dev_get_plat(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_plat *plat = dev_get_plat(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_plat *plat = dev_get_plat(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,
+ .plat_auto = sizeof(struct soc_ti_k3_plat),
+};
--
cgit