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imx9: scmi: Add i.MX94 support to get_reset_reason()

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Update get_reset_reason() to support i.MX94 to send message to the
System Manager to retrieve the LM/system last booted/shutdown reasons.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Ye Li
2025-09-26 09:51:21 -03:00
committed by Fabio Estevam
parent 998c6cc450
commit 1588c243b9
1 changed files with 35 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/mach-imx/imx9/scmi/soc.c
+35 -4
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@@ -494,6 +494,31 @@ static char *rst_string[32] = {
"por"
};
static char *rst_string_imx94[32] = {
"cm33_lockup",
"cm33_swreq",
"cm70_lockup",
"cm70_swreq",
"fccu",
"jtag_sw",
"ele",
"tempsense",
"wdog1",
"wdog2",
"wdog3",
"wdog4",
"wdog5",
"jtag",
"wdog6",
"wdog7",
"wdog8",
"wo_netc", "cm33s_lockup", "cm33s_swreq", "cm71_lockup", "cm71_swreq", "cm33_exc",
"bbm", "sw", "sm_err", "fusa_sreco", "pmic", "unused",
"unused", "unused",
"por"
};
int get_reset_reason(bool sys, bool lm)
{
struct scmi_imx_misc_reset_reason_in in = {
@@ -512,6 +537,12 @@ int get_reset_reason(bool sys, bool lm)
int ret;
struct udevice *dev;
char **rst;
if (is_imx94())
rst = rst_string_imx94;
else
rst = rst_string;
ret = uclass_get_device_by_name(UCLASS_CLK, "protocol@14", &dev);
if (ret)
@@ -526,7 +557,7 @@ int get_reset_reason(bool sys, bool lm)
if (out.bootflags & MISC_BOOT_FLAG_VLD) {
printf("SYS Boot reason: %s, origin: %ld, errid: %ld\n",
rst_string[out.bootflags & MISC_BOOT_FLAG_REASON],
rst[out.bootflags & MISC_BOOT_FLAG_REASON],
out.bootflags & MISC_BOOT_FLAG_ORG_VLD ?
FIELD_GET(MISC_BOOT_FLAG_ORIGIN, out.bootflags) : -1,
out.bootflags & MISC_BOOT_FLAG_ERR_VLD ?
@@ -535,7 +566,7 @@ int get_reset_reason(bool sys, bool lm)
}
if (out.shutdownflags & MISC_SHUTDOWN_FLAG_VLD) {
printf("SYS shutdown reason: %s, origin: %ld, errid: %ld\n",
rst_string[out.bootflags & MISC_SHUTDOWN_FLAG_REASON],
rst[out.bootflags & MISC_SHUTDOWN_FLAG_REASON],
out.bootflags & MISC_SHUTDOWN_FLAG_ORG_VLD ?
FIELD_GET(MISC_SHUTDOWN_FLAG_ORIGIN, out.bootflags) : -1,
out.bootflags & MISC_SHUTDOWN_FLAG_ERR_VLD ?
@@ -556,7 +587,7 @@ int get_reset_reason(bool sys, bool lm)
if (out.bootflags & MISC_BOOT_FLAG_VLD) {
printf("LM Boot reason: %s, origin: %ld, errid: %ld\n",
rst_string[out.bootflags & MISC_BOOT_FLAG_REASON],
rst[out.bootflags & MISC_BOOT_FLAG_REASON],
out.bootflags & MISC_BOOT_FLAG_ORG_VLD ?
FIELD_GET(MISC_BOOT_FLAG_ORIGIN, out.bootflags) : -1,
out.bootflags & MISC_BOOT_FLAG_ERR_VLD ?
@@ -566,7 +597,7 @@ int get_reset_reason(bool sys, bool lm)
if (out.shutdownflags & MISC_SHUTDOWN_FLAG_VLD) {
printf("LM shutdown reason: %s, origin: %ld, errid: %ld\n",
rst_string[out.bootflags & MISC_SHUTDOWN_FLAG_REASON],
rst[out.bootflags & MISC_SHUTDOWN_FLAG_REASON],
out.bootflags & MISC_SHUTDOWN_FLAG_ORG_VLD ?
FIELD_GET(MISC_SHUTDOWN_FLAG_ORIGIN, out.bootflags) : -1,
out.bootflags & MISC_SHUTDOWN_FLAG_ERR_VLD ?