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Message-Id: <20150731194011.649575369@linuxfoundation.org>
Date: Fri, 31 Jul 2015 12:41:46 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Russell King <rmk+kernel@....linux.org.uk>,
Gregory CLEMENT <gregory.clement@...e-electrons.com>
Subject: [PATCH 4.1 255/267] ARM: dove: fix legacy dove IRQ numbers
4.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Russell King <rmk+kernel@....linux.org.uk>
commit 5d6bed2a9c8bc161bff4cc7cede00f2e0e27a7e7 upstream.
v3.18 changed handle_IRQ() to call __handle_domain_irq(), which now
rejects attempts to deliver IRQ0. Since IRQ 0 is used as the timer
interrupt (just like the PIT on x86), this causes boot to fail as the
bogomips calibration never completes.
Fix this by shuffling all interrupts up by one.
Fixes: a71b092a9c68 ("ARM: Convert handle_IRQ to use __handle_domain_irq")
Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/arm/mach-dove/include/mach/irqs.h | 118 ++++++++++++++++-----------------
arch/arm/mach-dove/irq.c | 8 +-
2 files changed, 63 insertions(+), 63 deletions(-)
--- a/arch/arm/mach-dove/include/mach/irqs.h
+++ b/arch/arm/mach-dove/include/mach/irqs.h
@@ -14,73 +14,73 @@
/*
* Dove Low Interrupt Controller
*/
-#define IRQ_DOVE_BRIDGE 0
-#define IRQ_DOVE_H2C 1
-#define IRQ_DOVE_C2H 2
-#define IRQ_DOVE_NAND 3
-#define IRQ_DOVE_PDMA 4
-#define IRQ_DOVE_SPI1 5
-#define IRQ_DOVE_SPI0 6
-#define IRQ_DOVE_UART_0 7
-#define IRQ_DOVE_UART_1 8
-#define IRQ_DOVE_UART_2 9
-#define IRQ_DOVE_UART_3 10
-#define IRQ_DOVE_I2C 11
-#define IRQ_DOVE_GPIO_0_7 12
-#define IRQ_DOVE_GPIO_8_15 13
-#define IRQ_DOVE_GPIO_16_23 14
-#define IRQ_DOVE_PCIE0_ERR 15
-#define IRQ_DOVE_PCIE0 16
-#define IRQ_DOVE_PCIE1_ERR 17
-#define IRQ_DOVE_PCIE1 18
-#define IRQ_DOVE_I2S0 19
-#define IRQ_DOVE_I2S0_ERR 20
-#define IRQ_DOVE_I2S1 21
-#define IRQ_DOVE_I2S1_ERR 22
-#define IRQ_DOVE_USB_ERR 23
-#define IRQ_DOVE_USB0 24
-#define IRQ_DOVE_USB1 25
-#define IRQ_DOVE_GE00_RX 26
-#define IRQ_DOVE_GE00_TX 27
-#define IRQ_DOVE_GE00_MISC 28
-#define IRQ_DOVE_GE00_SUM 29
-#define IRQ_DOVE_GE00_ERR 30
-#define IRQ_DOVE_CRYPTO 31
+#define IRQ_DOVE_BRIDGE (1 + 0)
+#define IRQ_DOVE_H2C (1 + 1)
+#define IRQ_DOVE_C2H (1 + 2)
+#define IRQ_DOVE_NAND (1 + 3)
+#define IRQ_DOVE_PDMA (1 + 4)
+#define IRQ_DOVE_SPI1 (1 + 5)
+#define IRQ_DOVE_SPI0 (1 + 6)
+#define IRQ_DOVE_UART_0 (1 + 7)
+#define IRQ_DOVE_UART_1 (1 + 8)
+#define IRQ_DOVE_UART_2 (1 + 9)
+#define IRQ_DOVE_UART_3 (1 + 10)
+#define IRQ_DOVE_I2C (1 + 11)
+#define IRQ_DOVE_GPIO_0_7 (1 + 12)
+#define IRQ_DOVE_GPIO_8_15 (1 + 13)
+#define IRQ_DOVE_GPIO_16_23 (1 + 14)
+#define IRQ_DOVE_PCIE0_ERR (1 + 15)
+#define IRQ_DOVE_PCIE0 (1 + 16)
+#define IRQ_DOVE_PCIE1_ERR (1 + 17)
+#define IRQ_DOVE_PCIE1 (1 + 18)
+#define IRQ_DOVE_I2S0 (1 + 19)
+#define IRQ_DOVE_I2S0_ERR (1 + 20)
+#define IRQ_DOVE_I2S1 (1 + 21)
+#define IRQ_DOVE_I2S1_ERR (1 + 22)
+#define IRQ_DOVE_USB_ERR (1 + 23)
+#define IRQ_DOVE_USB0 (1 + 24)
+#define IRQ_DOVE_USB1 (1 + 25)
+#define IRQ_DOVE_GE00_RX (1 + 26)
+#define IRQ_DOVE_GE00_TX (1 + 27)
+#define IRQ_DOVE_GE00_MISC (1 + 28)
+#define IRQ_DOVE_GE00_SUM (1 + 29)
+#define IRQ_DOVE_GE00_ERR (1 + 30)
+#define IRQ_DOVE_CRYPTO (1 + 31)
/*
* Dove High Interrupt Controller
*/
-#define IRQ_DOVE_AC97 32
-#define IRQ_DOVE_PMU 33
-#define IRQ_DOVE_CAM 34
-#define IRQ_DOVE_SDIO0 35
-#define IRQ_DOVE_SDIO1 36
-#define IRQ_DOVE_SDIO0_WAKEUP 37
-#define IRQ_DOVE_SDIO1_WAKEUP 38
-#define IRQ_DOVE_XOR_00 39
-#define IRQ_DOVE_XOR_01 40
-#define IRQ_DOVE_XOR0_ERR 41
-#define IRQ_DOVE_XOR_10 42
-#define IRQ_DOVE_XOR_11 43
-#define IRQ_DOVE_XOR1_ERR 44
-#define IRQ_DOVE_LCD_DCON 45
-#define IRQ_DOVE_LCD1 46
-#define IRQ_DOVE_LCD0 47
-#define IRQ_DOVE_GPU 48
-#define IRQ_DOVE_PERFORM_MNTR 49
-#define IRQ_DOVE_VPRO_DMA1 51
-#define IRQ_DOVE_SSP_TIMER 54
-#define IRQ_DOVE_SSP 55
-#define IRQ_DOVE_MC_L2_ERR 56
-#define IRQ_DOVE_CRYPTO_ERR 59
-#define IRQ_DOVE_GPIO_24_31 60
-#define IRQ_DOVE_HIGH_GPIO 61
-#define IRQ_DOVE_SATA 62
+#define IRQ_DOVE_AC97 (1 + 32)
+#define IRQ_DOVE_PMU (1 + 33)
+#define IRQ_DOVE_CAM (1 + 34)
+#define IRQ_DOVE_SDIO0 (1 + 35)
+#define IRQ_DOVE_SDIO1 (1 + 36)
+#define IRQ_DOVE_SDIO0_WAKEUP (1 + 37)
+#define IRQ_DOVE_SDIO1_WAKEUP (1 + 38)
+#define IRQ_DOVE_XOR_00 (1 + 39)
+#define IRQ_DOVE_XOR_01 (1 + 40)
+#define IRQ_DOVE_XOR0_ERR (1 + 41)
+#define IRQ_DOVE_XOR_10 (1 + 42)
+#define IRQ_DOVE_XOR_11 (1 + 43)
+#define IRQ_DOVE_XOR1_ERR (1 + 44)
+#define IRQ_DOVE_LCD_DCON (1 + 45)
+#define IRQ_DOVE_LCD1 (1 + 46)
+#define IRQ_DOVE_LCD0 (1 + 47)
+#define IRQ_DOVE_GPU (1 + 48)
+#define IRQ_DOVE_PERFORM_MNTR (1 + 49)
+#define IRQ_DOVE_VPRO_DMA1 (1 + 51)
+#define IRQ_DOVE_SSP_TIMER (1 + 54)
+#define IRQ_DOVE_SSP (1 + 55)
+#define IRQ_DOVE_MC_L2_ERR (1 + 56)
+#define IRQ_DOVE_CRYPTO_ERR (1 + 59)
+#define IRQ_DOVE_GPIO_24_31 (1 + 60)
+#define IRQ_DOVE_HIGH_GPIO (1 + 61)
+#define IRQ_DOVE_SATA (1 + 62)
/*
* DOVE General Purpose Pins
*/
-#define IRQ_DOVE_GPIO_START 64
+#define IRQ_DOVE_GPIO_START 65
#define NR_GPIO_IRQS 64
/*
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -126,14 +126,14 @@ __exception_irq_entry dove_legacy_handle
stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_LOW_OFF);
stat &= readl_relaxed(dove_irq_base + IRQ_MASK_LOW_OFF);
if (stat) {
- unsigned int hwirq = __fls(stat);
+ unsigned int hwirq = 1 + __fls(stat);
handle_IRQ(hwirq, regs);
return;
}
stat = readl_relaxed(dove_irq_base + IRQ_CAUSE_HIGH_OFF);
stat &= readl_relaxed(dove_irq_base + IRQ_MASK_HIGH_OFF);
if (stat) {
- unsigned int hwirq = 32 + __fls(stat);
+ unsigned int hwirq = 33 + __fls(stat);
handle_IRQ(hwirq, regs);
return;
}
@@ -144,8 +144,8 @@ void __init dove_init_irq(void)
{
int i;
- orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
- orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
+ orion_irq_init(1, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
+ orion_irq_init(33, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
#ifdef CONFIG_MULTI_IRQ_HANDLER
set_handle_irq(dove_legacy_handle_irq);
--
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