From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH master 6/7] MIPS: longsoon: restart: hide access to zero page
Date: Mon, 5 Jun 2023 08:29:38 +0200 [thread overview]
Message-ID: <20230605062939.242063-6-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20230605062939.242063-1-a.fatoum@pengutronix.de>
Watchdog on Longsoon appears to be at address 0. Let's use
OPTIMIZER_HIDE_VAR, so GCC doesn't warn about it.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
arch/mips/mach-loongson/loongson1_reset.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/mips/mach-loongson/loongson1_reset.c b/arch/mips/mach-loongson/loongson1_reset.c
index 85752f4ab825..9b4da217f80d 100644
--- a/arch/mips/mach-loongson/loongson1_reset.c
+++ b/arch/mips/mach-loongson/loongson1_reset.c
@@ -11,9 +11,13 @@
static void __noreturn longhorn_restart_soc(struct restart_handler *rst)
{
- __raw_writel(0x1, WDT_EN);
- __raw_writel(0x1, WDT_SET);
- __raw_writel(0x1, WDT_TIMER);
+ void __iomem *wdt = IOMEM(0);
+
+ OPTIMIZER_HIDE_VAR(wdt);
+
+ __raw_writel(0x1, wdt + WDT_EN);
+ __raw_writel(0x1, wdt + WDT_SET);
+ __raw_writel(0x1, wdt + WDT_TIMER);
hang();
}
--
2.39.2
next prev parent reply other threads:[~2023-06-05 6:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-05 6:29 [PATCH master 1/7] ddr: imx8m: align function definition with prototype Ahmad Fatoum
2023-06-05 6:29 ` [PATCH master 2/7] include: bitmask: avoid -Wint-in-bool-context warning Ahmad Fatoum
2023-06-05 6:29 ` [PATCH master 3/7] net: fec_mpc5200: fix false positive -Wmisleading-indentation Ahmad Fatoum
2023-06-05 6:29 ` [PATCH master 4/7] net: gianfar: fix out of bounds read of local variable Ahmad Fatoum
2023-06-06 9:33 ` Sascha Hauer
2023-06-06 11:31 ` Ahmad Fatoum
2023-06-05 6:29 ` [PATCH master 5/7] MIPS: boot: main_entry: use malloc_end instead of _stext Ahmad Fatoum
2023-06-05 6:29 ` Ahmad Fatoum [this message]
2023-06-05 6:29 ` [PATCH master 7/7] bootm: booti: fix false positive uninitialized variable access Ahmad Fatoum
2023-06-06 9:35 ` [PATCH master 1/7] ddr: imx8m: align function definition with prototype Sascha Hauer
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