commit 3700c4721340adbc65a2f68ab3a8e2cbb44ebe08
author Peng Fan <peng.fan@nxp.com> Tue Jul 26 16:40:56 2022 +0800
committer Stefano Babic <sbabic@denx.de> Tue Jul 26 11:29:01 2022 +0200
tree dc7858d20b87bb0ff25612769d035853238450c2
parent 1c610740b70004eb95e395c1640ca762bcf0dfa8

imx: imx9: Get the chip revision through S400 API

Update the get chip revision methond to use S400 API, also record
other information like lifecycle and UID to global data.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

arch/arm/include/asm/global_data.h

diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index 09f3522..6ee2a76 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -92,6 +92,9 @@
 
 #ifdef CONFIG_IMX_SENTINEL
 	struct udevice *s400_dev;
+	u32 soc_rev;
+	u32 lifecycle;
+	u32 uid[4];
 #endif
 
 };

arch/arm/mach-imx/imx9/soc.c

diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 7c71cbd..c71a5a9 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -27,6 +27,7 @@
 #include <asm/setup.h>
 #include <asm/bootm.h>
 #include <asm/arch-imx/cpu.h>
+#include <asm/mach-imx/s400_api.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -67,9 +68,18 @@
 }
 #endif
 
+static void set_cpu_info(struct sentinel_get_info_data *info)
+{
+	gd->arch.soc_rev = info->soc;
+	gd->arch.lifecycle = info->lc;
+	memcpy((void *)&gd->arch.uid, &info->uid, 4 * sizeof(u32));
+}
+
 u32 get_cpu_rev(void)
 {
-	return (MXC_CPU_IMX93 << 12) | CHIP_REV_1_0;
+	u32 rev = (gd->arch.soc_rev >> 24) - 0xa0;
+
+	return (MXC_CPU_IMX93 << 12) | (CHIP_REV_1_0 + rev);
 }
 
 #define UNLOCK_WORD 0xD928C520 /* unlock word */
@@ -197,6 +207,17 @@
 {
 	return 0;
 }
+
+#if defined(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+	printf("UID: 0x%x 0x%x 0x%x 0x%x\n",
+	       gd->arch.uid[0], gd->arch.uid[1], gd->arch.uid[2], gd->arch.uid[3]);
+
+	serialnr->low = gd->arch.uid[0];
+	serialnr->high = gd->arch.uid[3];
+}
+#endif
 
 int arch_cpu_init(void)
 {
@@ -211,6 +232,32 @@
 
 	return 0;
 }
+
+int imx9_probe_mu(void *ctx, struct event *event)
+{
+	struct udevice *devp;
+	int node, ret;
+	u32 res;
+	struct sentinel_get_info_data info;
+
+	node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx93-mu-s4");
+
+	ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
+	if (ret)
+		return ret;
+
+	if (gd->flags & GD_FLG_RELOC)
+		return 0;
+
+	ret = ahab_get_info(&info, &res);
+	if (ret)
+		return ret;
+
+	set_cpu_info(&info);
+
+	return 0;
+}
+EVENT_SPY(EVT_DM_POST_INIT, imx9_probe_mu);
 
 int timer_init(void)
 {