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21549dbf7b
Update patch set for new release and add required kernel option
CONFIG_ZRAM_TRACK_ENTRY_ACTIME to generic config
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.66
Manually rebased:
bcm27xx/patches-6.6/950-0092-MMC-added-alternative-MMC-driver.patch
bcm53xx/patches-6.6/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
starfive/patches-6.6/1000-serial-8250_dw-Add-starfive-jh7100-hsuart-compatible.patch
Removed upstreamed:
bcm27xx/patches-6.6/950-0029-vc4_hdmi-Avoid-log-spam-for-audio-start-failure.patch[1]
All other patches automatically rebased.
1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.66&id=e0388a95736abd1f5f5a94221dd1ac24eacbd4d7
Build system: x86/64
Build-tested: bcm27xx/bcm2712, flogic/glinet_gl-mt6000, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3, x86/64
Run-tested: bcm27xx/bcm2712, flogic/glinet_gl-mt6000, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3, x86/64
Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/17271
(cherry picked from commit 28f534d953)
Link: https://github.com/openwrt/openwrt/pull/17302
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
126 lines
3.9 KiB
Diff
126 lines
3.9 KiB
Diff
From 137c9e08e5e542d58aa606b0bb4f0990117309a0 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 20 Nov 2023 18:22:31 +0000
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Subject: [PATCH] watchdog: mediatek: mt7988: add wdt support
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Add support for watchdog and reset generator unit of the MediaTek
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MT7988 SoC.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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Link: https://lore.kernel.org/r/c0cf5f701801cce60470853fa15f1d9dced78c4f.1700504385.git.daniel@makrotopia.org
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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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---
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drivers/watchdog/mtk_wdt.c | 42 ++++++++++++++++++++++++++++++++++++++
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1 file changed, 42 insertions(+)
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--- a/drivers/watchdog/mtk_wdt.c
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+++ b/drivers/watchdog/mtk_wdt.c
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@@ -58,9 +58,13 @@
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#define WDT_SWSYSRST 0x18U
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#define WDT_SWSYS_RST_KEY 0x88000000
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+#define WDT_SWSYSRST_EN 0xfc
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+
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#define DRV_NAME "mtk-wdt"
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#define DRV_VERSION "1.0"
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+#define MT7988_TOPRGU_SW_RST_NUM 24
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+
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static bool nowayout = WATCHDOG_NOWAYOUT;
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static unsigned int timeout;
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@@ -71,10 +75,12 @@ struct mtk_wdt_dev {
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struct reset_controller_dev rcdev;
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bool disable_wdt_extrst;
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bool reset_by_toprgu;
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+ bool has_swsysrst_en;
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};
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struct mtk_wdt_data {
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int toprgu_sw_rst_num;
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+ bool has_swsysrst_en;
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};
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static const struct mtk_wdt_data mt2712_data = {
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@@ -89,6 +95,11 @@ static const struct mtk_wdt_data mt7986_
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.toprgu_sw_rst_num = MT7986_TOPRGU_SW_RST_NUM,
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};
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+static const struct mtk_wdt_data mt7988_data = {
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+ .toprgu_sw_rst_num = MT7988_TOPRGU_SW_RST_NUM,
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+ .has_swsysrst_en = true,
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+};
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+
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static const struct mtk_wdt_data mt8183_data = {
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.toprgu_sw_rst_num = MT8183_TOPRGU_SW_RST_NUM,
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};
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@@ -109,6 +120,28 @@ static const struct mtk_wdt_data mt8195_
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.toprgu_sw_rst_num = MT8195_TOPRGU_SW_RST_NUM,
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};
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+/**
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+ * toprgu_reset_sw_en_unlocked() - enable/disable software control for reset bit
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+ * @data: Pointer to instance of driver data.
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+ * @id: Bit number identifying the reset to be enabled or disabled.
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+ * @enable: If true, enable software control for that bit, disable otherwise.
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+ *
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+ * Context: The caller must hold lock of struct mtk_wdt_dev.
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+ */
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+static void toprgu_reset_sw_en_unlocked(struct mtk_wdt_dev *data,
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+ unsigned long id, bool enable)
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+{
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+ u32 tmp;
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+
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+ tmp = readl(data->wdt_base + WDT_SWSYSRST_EN);
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+ if (enable)
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+ tmp |= BIT(id);
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+ else
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+ tmp &= ~BIT(id);
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+
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+ writel(tmp, data->wdt_base + WDT_SWSYSRST_EN);
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+}
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+
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static int toprgu_reset_update(struct reset_controller_dev *rcdev,
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unsigned long id, bool assert)
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{
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@@ -119,6 +152,9 @@ static int toprgu_reset_update(struct re
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spin_lock_irqsave(&data->lock, flags);
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+ if (assert && data->has_swsysrst_en)
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+ toprgu_reset_sw_en_unlocked(data, id, true);
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+
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tmp = readl(data->wdt_base + WDT_SWSYSRST);
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if (assert)
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tmp |= BIT(id);
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@@ -127,6 +163,9 @@ static int toprgu_reset_update(struct re
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tmp |= WDT_SWSYS_RST_KEY;
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writel(tmp, data->wdt_base + WDT_SWSYSRST);
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+ if (!assert && data->has_swsysrst_en)
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+ toprgu_reset_sw_en_unlocked(data, id, false);
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+
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spin_unlock_irqrestore(&data->lock, flags);
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return 0;
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@@ -412,6 +451,8 @@ static int mtk_wdt_probe(struct platform
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wdt_data->toprgu_sw_rst_num);
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if (err)
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return err;
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+
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+ mtk_wdt->has_swsysrst_en = wdt_data->has_swsysrst_en;
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}
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mtk_wdt->disable_wdt_extrst =
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@@ -450,6 +491,7 @@ static const struct of_device_id mtk_wdt
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{ .compatible = "mediatek,mt6589-wdt" },
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{ .compatible = "mediatek,mt6795-wdt", .data = &mt6795_data },
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{ .compatible = "mediatek,mt7986-wdt", .data = &mt7986_data },
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+ { .compatible = "mediatek,mt7988-wdt", .data = &mt7988_data },
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{ .compatible = "mediatek,mt8183-wdt", .data = &mt8183_data },
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{ .compatible = "mediatek,mt8186-wdt", .data = &mt8186_data },
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{ .compatible = "mediatek,mt8188-wdt", .data = &mt8188_data },
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