openwrt/target/linux/ipq40xx/patches-5.15/420-firmware-qcom-scm-disable-SDI.patch
John Audia 67d998e25d
kernel: bump 5.15 to 5.15.145
Changelog: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.145

No patches needed a rebase.

 23.05 backport:

    Rebased patch mediatek/100-dts-update-mt7622-rfb1.patch due to
    changes introduced in commit e37aa926447f ("arm64: dts: mediatek:
    mt7622: fix memory node warning check") in version v5.15.143 and we
    jumped over from v5.15.139 directly to v5.15.145.

Build system: x86_64
Build-tested: ramips/tplink_archer-a6-v3
Run-tested: ramips/tplink_archer-a6-v3

 23.05 backport:

  Stijn:
   Compile-tested: ath79/generic, ipq40xx/generic, mvebu/cortexa72, ramips/mt{7621,7620,76x8}, realtek/rtl{838x,930x}, 86/64.
   Run-tested: cortexa72 (RB5009UG+S+IN), mt7621 (EAP615-Wall v1), rtl838x (GS1900-10HP, GS1900-8HP, GS108T v3).

  Petr:
   Compile-tested: ipq807x, mvebu/cortexa9
   Run-tested: turris-omnia, prpl-haze

Tested-by: Stijn Segers <foss@volatilesystems.org> [23.05 testing]
Signed-off-by: John Audia <therealgraysky@proton.me>
Signed-off-by: Petr Štetiar <ynezz@true.cz> [23.05 refresh]
(cherry picked from commit 8de4cc77a6)
2024-01-07 12:57:30 +00:00

48 lines
1.3 KiB
Diff

--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -411,6 +411,20 @@ static int __qcom_scm_set_dload_mode(str
return qcom_scm_call_atomic(__scm->dev, &desc, NULL);
}
+static int __qcom_scm_disable_sdi(struct device *dev)
+{
+ struct qcom_scm_desc desc = {
+ .svc = QCOM_SCM_SVC_BOOT,
+ .cmd = QCOM_SCM_BOOT_CONFIG_SDI,
+ .arginfo = QCOM_SCM_ARGS(2),
+ .args[0] = 1 /* 1: disable watchdog debug */,
+ .args[1] = 0 /* 0: disable SDI */,
+ .owner = ARM_SMCCC_OWNER_SIP,
+ };
+
+ return qcom_scm_call(__scm->dev, &desc, NULL);
+}
+
static void qcom_scm_set_download_mode(bool enable)
{
bool avail;
@@ -1321,6 +1335,13 @@ static int qcom_scm_probe(struct platfor
if (download_mode)
qcom_scm_set_download_mode(true);
+ /*
+ * Factory firmware leaves SDI (a debug interface), which prevents
+ * clean reboot.
+ */
+ if (of_machine_is_compatible("google,wifi"))
+ __qcom_scm_disable_sdi(__scm->dev);
+
return 0;
}
--- a/drivers/firmware/qcom_scm.h
+++ b/drivers/firmware/qcom_scm.h
@@ -77,6 +77,7 @@ extern int scm_legacy_call(struct device
#define QCOM_SCM_SVC_BOOT 0x01
#define QCOM_SCM_BOOT_SET_ADDR 0x01
#define QCOM_SCM_BOOT_TERMINATE_PC 0x02
+#define QCOM_SCM_BOOT_CONFIG_SDI 0x09
#define QCOM_SCM_BOOT_SET_DLOAD_MODE 0x10
#define QCOM_SCM_BOOT_SET_REMOTE_STATE 0x0a
#define QCOM_SCM_FLUSH_FLAG_MASK 0x3