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irqchip/stm32: Add stm32h7 support 

stm32h7 has up to 96 inputs
(3 banks of 32 inputs max).

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
hifive-unleashed-5.1
Ludovic Barre 2017-11-06 18:03:34 +01:00 committed by Marc Zyngier
parent ce0b7e39c5
commit 539c603e14
1 changed files with 42 additions and 0 deletions
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42
drivers/irqchip/irq-stm32-exti.c
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@ -38,6 +38,39 @@ static const struct stm32_exti_bank *stm32f4xx_exti_banks[] = {
&stm32f4xx_exti_b1,
};
static const struct stm32_exti_bank stm32h7xx_exti_b1 = {
.imr_ofst = 0x80,
.emr_ofst = 0x84,
.rtsr_ofst = 0x00,
.ftsr_ofst = 0x04,
.swier_ofst = 0x08,
.pr_ofst = 0x88,
};
static const struct stm32_exti_bank stm32h7xx_exti_b2 = {
.imr_ofst = 0x90,
.emr_ofst = 0x94,
.rtsr_ofst = 0x20,
.ftsr_ofst = 0x24,
.swier_ofst = 0x28,
.pr_ofst = 0x98,
};
static const struct stm32_exti_bank stm32h7xx_exti_b3 = {
.imr_ofst = 0xA0,
.emr_ofst = 0xA4,
.rtsr_ofst = 0x40,
.ftsr_ofst = 0x44,
.swier_ofst = 0x48,
.pr_ofst = 0xA8,
};
static const struct stm32_exti_bank *stm32h7xx_exti_banks[] = {
&stm32h7xx_exti_b1,
&stm32h7xx_exti_b2,
&stm32h7xx_exti_b3,
};
static unsigned long stm32_exti_pending(struct irq_chip_generic *gc)
{
const struct stm32_exti_bank *stm32_bank = gc->private;
@ -256,3 +289,12 @@ static int __init stm32f4_exti_of_init(struct device_node *np,
}
IRQCHIP_DECLARE(stm32f4_exti, "st,stm32-exti", stm32f4_exti_of_init);
static int __init stm32h7_exti_of_init(struct device_node *np,
struct device_node *parent)
{
return stm32_exti_init(stm32h7xx_exti_banks,
ARRAY_SIZE(stm32h7xx_exti_banks), np);
}
IRQCHIP_DECLARE(stm32h7_exti, "st,stm32h7-exti", stm32h7_exti_of_init);