From: John Crispin <john@phrozen.org>
To: James Hogan <jhogan@kernel.org>, Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org, Felix Fietkau <nbd@nbd.name>,
John Crispin <john@phrozen.org>
Subject: [PATCH V2 05/25] MIPS: ath79: fix system restart
Date: Fri, 20 Jul 2018 13:58:22 +0200 [thread overview]
Message-ID: <20180720115842.8406-6-john@phrozen.org> (raw)
In-Reply-To: <20180720115842.8406-1-john@phrozen.org>
From: Felix Fietkau <nbd@nbd.name>
This patch disables irq on reboot to fix hang issues that were observed
due to pending interrupts.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
---
arch/mips/ath79/setup.c | 1 +
arch/mips/include/asm/mach-ath79/ath79.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index fed49cdc5fdf..4c7a93f4039a 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -40,6 +40,7 @@ static char ath79_sys_type[ATH79_SYS_TYPE_LEN];
static void ath79_restart(char *command)
{
+ local_irq_disable();
ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
for (;;)
if (cpu_wait)
diff --git a/arch/mips/include/asm/mach-ath79/ath79.h b/arch/mips/include/asm/mach-ath79/ath79.h
index f54c9b0c6325..73dcd63b8243 100644
--- a/arch/mips/include/asm/mach-ath79/ath79.h
+++ b/arch/mips/include/asm/mach-ath79/ath79.h
@@ -167,6 +167,7 @@ static inline u32 ath79_pll_rr(unsigned reg)
static inline void ath79_reset_wr(unsigned reg, u32 val)
{
__raw_writel(val, ath79_reset_base + reg);
+ (void) __raw_readl(ath79_reset_base + reg); /* flush */
}
static inline u32 ath79_reset_rr(unsigned reg)
--
2.11.0
next prev parent reply other threads:[~2018-07-20 11:59 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-20 11:58 [PATCH V2 00/25] MIPS: ath79: convert target to pure OF John Crispin
2018-07-20 11:58 ` [PATCH V2 01/25] MIPS: ath79: add lots of missing registers John Crispin
2018-07-20 11:58 ` [PATCH V2 02/25] MIPS: ath79: add support for QCA953x QCA956x TP9343 John Crispin
2018-07-20 11:58 ` [PATCH V2 03/25] MIPS: ath79: select the PINCTRL subsystem John Crispin
2018-07-20 11:58 ` [PATCH V2 04/25] MIPS: ath79: fix register address in ath79_ddr_wb_flush() John Crispin
2018-07-20 15:44 ` Sergei Shtylyov
2018-07-20 17:14 ` Paul Burton
2018-07-20 17:18 ` Paul Burton
2018-07-20 11:58 ` John Crispin [this message]
2018-07-20 11:58 ` [PATCH V2 06/25] MIPS: ath79: finetune cpu-overrides John Crispin
2018-07-20 11:58 ` [PATCH V2 07/25] MIPS: ath79: enable uart during early_prink John Crispin
2018-07-20 15:47 ` Sergei Shtylyov
2018-07-20 11:58 ` [PATCH V2 08/25] MIPS: ath79: get PCIe controller out of reset John Crispin
2018-07-20 11:58 ` [PATCH V2 09/25] dt-bindings: PCI: qcom,ar7100: adds binding doc John Crispin
2018-07-20 15:51 ` Sergei Shtylyov
2018-07-20 15:58 ` Sergei Shtylyov
2018-07-20 11:58 ` [PATCH V2 10/25] MIPS: pci-ar71xx: convert to OF John Crispin
2018-07-20 11:58 ` [PATCH V2 11/25] dt-bindings: PCI: qcom,ar7240: adds binding doc John Crispin
2018-07-20 16:11 ` Sergei Shtylyov
2018-07-25 17:34 ` Rob Herring
2018-07-20 11:58 ` [PATCH V2 12/25] MIPS: pci-ar724x: convert to OF John Crispin
2018-07-20 11:58 ` [PATCH V2 13/25] MIPS: ath79: add helpers for setting clocks and expose the ref clock John Crispin
2018-07-20 11:58 ` [PATCH V2 14/25] MIPS: ath79: move legacy "wdt" and "uart" clock aliases out of soc init John Crispin
2018-07-20 11:58 ` [PATCH V2 15/25] MIPS: ath79: pass PLL base to clock init functions John Crispin
2018-07-20 11:58 ` [PATCH V2 16/25] MIPS: ath79: make specifying the reference clock in DT optional John Crispin
2018-07-20 11:58 ` [PATCH V2 17/25] MIPS: ath79: support setting up clock via DT on all SoC types John Crispin
2018-07-20 11:58 ` [PATCH V2 18/25] MIPS: ath79: export switch MDIO reference clock John Crispin
2018-07-20 11:58 ` [PATCH V2 19/25] MIPS: ath79: drop legacy IRQ code John Crispin
2018-07-20 11:58 ` [PATCH V2 20/25] MIPS: ath79: drop machfiles John Crispin
2018-07-20 11:58 ` [PATCH V2 21/25] MIPS: ath79: drop legacy pci code John Crispin
2018-07-20 11:58 ` [PATCH V2 22/25] MIPS: ath79: drop platform device registration code John Crispin
2018-07-20 11:58 ` [PATCH V2 23/25] MIPS: ath79: drop !OF clock code John Crispin
2018-07-20 11:58 ` [PATCH V2 24/25] MIPS: ath79: sanitize symbols John Crispin
2018-07-20 11:58 ` [PATCH V2 25/25] spi: ath79: drop pdata support John Crispin
2018-07-25 2:15 ` [PATCH V2 00/25] MIPS: ath79: convert target to pure OF Paul Burton
2018-07-25 5:11 ` John Crispin
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