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-rw-r--r--arch/arm/mach-at91/Kconfig17
-rw-r--r--arch/arm/mach-at91/Kconfig.non_dt6
-rw-r--r--arch/arm/mach-at91/Makefile3
-rw-r--r--arch/arm/mach-at91/board-dt-rm9200.c13
-rw-r--r--arch/arm/mach-at91/board-dt-sam9.c13
-rw-r--r--arch/arm/mach-at91/board-dt-sama5.c13
-rw-r--r--arch/arm/mach-at91/irq.c270
-rw-r--r--arch/arm/mach-at91/pm.c32
-rw-r--r--arch/arm/mach-at91/setup.c3
9 files changed, 45 insertions, 325 deletions
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 6cc6f7aebdae..dd28e1fedbdc 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -28,6 +28,11 @@ config OLD_CLK_AT91
bool
default AT91_PMC_UNIT && AT91_USE_OLD_CLK
+config OLD_IRQ_AT91
+ bool
+ select MULTI_IRQ_HANDLER
+ select SPARSE_IRQ
+
config AT91_SAM9_ALT_RESET
bool
default !ARCH_AT91X40
@@ -45,18 +50,16 @@ config HAVE_AT91_SMD
config SOC_AT91SAM9
bool
select AT91_SAM9_TIME
+ select ATMEL_AIC_IRQ if !OLD_IRQ_AT91
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
- select MULTI_IRQ_HANDLER
- select SPARSE_IRQ
config SOC_SAMA5
bool
select AT91_SAM9_TIME
+ select ATMEL_AIC5_IRQ
select CPU_V7
select GENERIC_CLOCKEVENTS
- select MULTI_IRQ_HANDLER
- select SPARSE_IRQ
select USE_OF
menu "Atmel AT91 System-on-Chip"
@@ -70,8 +73,7 @@ config ARCH_AT91X40
depends on !MMU
select CPU_ARM7TDMI
select ARCH_USES_GETTIMEOFFSET
- select MULTI_IRQ_HANDLER
- select SPARSE_IRQ
+ select OLD_IRQ_AT91
help
Select this if you are using one of Atmel's AT91X40 SoC.
@@ -108,11 +110,10 @@ endif
if SOC_SAM_V4_V5
config SOC_AT91RM9200
bool "AT91RM9200"
+ select ATMEL_AIC_IRQ if !OLD_IRQ_AT91
select CPU_ARM920T
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
- select MULTI_IRQ_HANDLER
- select SPARSE_IRQ
select HAVE_AT91_USB_CLK
config SOC_AT91SAM9260
diff --git a/arch/arm/mach-at91/Kconfig.non_dt b/arch/arm/mach-at91/Kconfig.non_dt
index aa31e556e2e5..d8e88219edb4 100644
--- a/arch/arm/mach-at91/Kconfig.non_dt
+++ b/arch/arm/mach-at91/Kconfig.non_dt
@@ -14,31 +14,37 @@ config ARCH_AT91RM9200
bool "AT91RM9200"
select SOC_AT91RM9200
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
config ARCH_AT91SAM9260
bool "AT91SAM9260 or AT91SAM9XE or AT91SAM9G20"
select SOC_AT91SAM9260
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
config ARCH_AT91SAM9261
bool "AT91SAM9261 or AT91SAM9G10"
select SOC_AT91SAM9261
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
config ARCH_AT91SAM9263
bool "AT91SAM9263"
select SOC_AT91SAM9263
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
config ARCH_AT91SAM9RL
bool "AT91SAM9RL"
select SOC_AT91SAM9RL
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
config ARCH_AT91SAM9G45
bool "AT91SAM9G45"
select SOC_AT91SAM9G45
select AT91_USE_OLD_CLK
+ select OLD_IRQ_AT91
endchoice
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index c677f9688ffe..40946f4e8921 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -2,11 +2,12 @@
# Makefile for the linux kernel.
#
-obj-y := irq.o gpio.o setup.o sysirq_mask.o
+obj-y := gpio.o setup.o sysirq_mask.o
obj-m :=
obj-n :=
obj- :=
+obj-$(CONFIG_OLD_IRQ_AT91) += irq.o
obj-$(CONFIG_OLD_CLK_AT91) += clock.o
obj-$(CONFIG_AT91_SAM9_ALT_RESET) += at91sam9_alt_reset.o
obj-$(CONFIG_AT91_SAM9G45_RESET) += at91sam9g45_reset.o
diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c
index 3a185faee795..61ea21445664 100644
--- a/arch/arm/mach-at91/board-dt-rm9200.c
+++ b/arch/arm/mach-at91/board-dt-rm9200.c
@@ -24,17 +24,6 @@
#include "at91_aic.h"
#include "generic.h"
-
-static const struct of_device_id irq_of_match[] __initconst = {
- { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
- { /*sentinel*/ }
-};
-
-static void __init at91rm9200_dt_init_irq(void)
-{
- of_irq_init(irq_of_match);
-}
-
static const char *at91rm9200_dt_board_compat[] __initdata = {
"atmel,at91rm9200",
NULL
@@ -43,8 +32,6 @@ static const char *at91rm9200_dt_board_compat[] __initdata = {
DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)")
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
- .handle_irq = at91_aic_handle_irq,
.init_early = at91rm9200_dt_initialize,
- .init_irq = at91rm9200_dt_init_irq,
.dt_compat = at91rm9200_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c
index 575b0be66ca8..dfa8d48146fe 100644
--- a/arch/arm/mach-at91/board-dt-sam9.c
+++ b/arch/arm/mach-at91/board-dt-sam9.c
@@ -34,17 +34,6 @@ static void __init sam9_dt_timer_init(void)
at91sam926x_pit_init();
}
-static const struct of_device_id irq_of_match[] __initconst = {
-
- { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
- { /*sentinel*/ }
-};
-
-static void __init at91_dt_init_irq(void)
-{
- of_irq_init(irq_of_match);
-}
-
static const char *at91_dt_board_compat[] __initdata = {
"atmel,at91sam9",
NULL
@@ -54,8 +43,6 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
/* Maintainer: Atmel */
.init_time = sam9_dt_timer_init,
.map_io = at91_map_io,
- .handle_irq = at91_aic_handle_irq,
.init_early = at91_dt_initialize,
- .init_irq = at91_dt_init_irq,
.dt_compat = at91_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c
index 075ec0576ada..d6fe04bcaabd 100644
--- a/arch/arm/mach-at91/board-dt-sama5.c
+++ b/arch/arm/mach-at91/board-dt-sama5.c
@@ -35,17 +35,6 @@ static void __init sama5_dt_timer_init(void)
at91sam926x_pit_init();
}
-static const struct of_device_id irq_of_match[] __initconst = {
-
- { .compatible = "atmel,sama5d3-aic", .data = at91_aic5_of_init },
- { /*sentinel*/ }
-};
-
-static void __init at91_dt_init_irq(void)
-{
- of_irq_init(irq_of_match);
-}
-
static int ksz9021rn_phy_fixup(struct phy_device *phy)
{
int value;
@@ -82,9 +71,7 @@ DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)")
/* Maintainer: Atmel */
.init_time = sama5_dt_timer_init,
.map_io = at91_map_io,
- .handle_irq = at91_aic5_handle_irq,
.init_early = at91_dt_initialize,
- .init_irq = at91_dt_init_irq,
.init_machine = sama5_dt_device_init,
.dt_compat = sama5_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index 3d192c5aee66..cdb3ec9efd2b 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -48,11 +48,6 @@ void __iomem *at91_aic_base;
static struct irq_domain *at91_aic_domain;
static struct device_node *at91_aic_np;
static unsigned int n_irqs = NR_AIC_IRQS;
-static unsigned long at91_aic_caps = 0;
-
-/* AIC5 introduces a Source Select Register */
-#define AT91_AIC_CAP_AIC5 (1 << 0)
-#define has_aic5() (at91_aic_caps & AT91_AIC_CAP_AIC5)
#ifdef CONFIG_PM
@@ -92,50 +87,14 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value)
void at91_irq_suspend(void)
{
- int bit = -1;
-
- if (has_aic5()) {
- /* disable enabled irqs */
- while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- }
- /* enable wakeup irqs */
- bit = -1;
- while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- }
- } else {
- at91_aic_write(AT91_AIC_IDCR, *backups);
- at91_aic_write(AT91_AIC_IECR, *wakeups);
- }
+ at91_aic_write(AT91_AIC_IDCR, *backups);
+ at91_aic_write(AT91_AIC_IECR, *wakeups);
}
void at91_irq_resume(void)
{
- int bit = -1;
-
- if (has_aic5()) {
- /* disable wakeup irqs */
- while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- }
- /* enable irqs disabled for suspend */
- bit = -1;
- while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- }
- } else {
- at91_aic_write(AT91_AIC_IDCR, *wakeups);
- at91_aic_write(AT91_AIC_IECR, *backups);
- }
+ at91_aic_write(AT91_AIC_IDCR, *wakeups);
+ at91_aic_write(AT91_AIC_IECR, *backups);
}
#else
@@ -169,21 +128,6 @@ at91_aic_handle_irq(struct pt_regs *regs)
handle_IRQ(irqnr, regs);
}
-asmlinkage void __exception_irq_entry
-at91_aic5_handle_irq(struct pt_regs *regs)
-{
- u32 irqnr;
- u32 irqstat;
-
- irqnr = at91_aic_read(AT91_AIC5_IVR);
- irqstat = at91_aic_read(AT91_AIC5_ISR);
-
- if (!irqstat)
- at91_aic_write(AT91_AIC5_EOICR, 0);
- else
- handle_IRQ(irqnr, regs);
-}
-
static void at91_aic_mask_irq(struct irq_data *d)
{
/* Disable interrupt on AIC */
@@ -192,15 +136,6 @@ static void at91_aic_mask_irq(struct irq_data *d)
clear_backup(d->hwirq);
}
-static void __maybe_unused at91_aic5_mask_irq(struct irq_data *d)
-{
- /* Disable interrupt on AIC5 */
- at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- /* Update ISR cache */
- clear_backup(d->hwirq);
-}
-
static void at91_aic_unmask_irq(struct irq_data *d)
{
/* Enable interrupt on AIC */
@@ -209,15 +144,6 @@ static void at91_aic_unmask_irq(struct irq_data *d)
set_backup(d->hwirq);
}
-static void __maybe_unused at91_aic5_unmask_irq(struct irq_data *d)
-{
- /* Enable interrupt on AIC5 */
- at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- /* Update ISR cache */
- set_backup(d->hwirq);
-}
-
static void at91_aic_eoi(struct irq_data *d)
{
/*
@@ -227,11 +153,6 @@ static void at91_aic_eoi(struct irq_data *d)
at91_aic_write(AT91_AIC_EOICR, 0);
}
-static void __maybe_unused at91_aic5_eoi(struct irq_data *d)
-{
- at91_aic_write(AT91_AIC5_EOICR, 0);
-}
-
static unsigned long *at91_extern_irq;
u32 at91_get_extern_irq(void)
@@ -282,16 +203,8 @@ static int at91_aic_set_type(struct irq_data *d, unsigned type)
if (srctype < 0)
return srctype;
- if (has_aic5()) {
- at91_aic_write(AT91_AIC5_SSR,
- d->hwirq & AT91_AIC5_INTSEL_MSK);
- smr = at91_aic_read(AT91_AIC5_SMR) & ~AT91_AIC_SRCTYPE;
- at91_aic_write(AT91_AIC5_SMR, smr | srctype);
- } else {
- smr = at91_aic_read(AT91_AIC_SMR(d->hwirq))
- & ~AT91_AIC_SRCTYPE;
- at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype);
- }
+ smr = at91_aic_read(AT91_AIC_SMR(d->hwirq)) & ~AT91_AIC_SRCTYPE;
+ at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype);
return 0;
}
@@ -331,177 +244,6 @@ static void __init at91_aic_hw_init(unsigned int spu_vector)
at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF);
}
-static void __init __maybe_unused at91_aic5_hw_init(unsigned int spu_vector)
-{
- int i;
-
- /*
- * Perform 8 End Of Interrupt Command to make sure AIC
- * will not Lock out nIRQ
- */
- for (i = 0; i < 8; i++)
- at91_aic_write(AT91_AIC5_EOICR, 0);
-
- /*
- * Spurious Interrupt ID in Spurious Vector Register.
- * When there is no current interrupt, the IRQ Vector Register
- * reads the value stored in AIC_SPU
- */
- at91_aic_write(AT91_AIC5_SPU, spu_vector);
-
- /* No debugging in AIC: Debug (Protect) Control Register */
- at91_aic_write(AT91_AIC5_DCR, 0);
-
- /* Disable and clear all interrupts initially */
- for (i = 0; i < n_irqs; i++) {
- at91_aic_write(AT91_AIC5_SSR, i & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- at91_aic_write(AT91_AIC5_ICCR, 1);
- }
-}
-
-#if defined(CONFIG_OF)
-static unsigned int *at91_aic_irq_priorities;
-
-static int at91_aic_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- /* Put virq number in Source Vector Register */
- at91_aic_write(AT91_AIC_SVR(hw), virq);
-
- /* Active Low interrupt, with priority */
- at91_aic_write(AT91_AIC_SMR(hw),
- AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
-
- irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
- set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
-
- return 0;
-}
-
-static int at91_aic5_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- at91_aic_write(AT91_AIC5_SSR, hw & AT91_AIC5_INTSEL_MSK);
-
- /* Put virq number in Source Vector Register */
- at91_aic_write(AT91_AIC5_SVR, virq);
-
- /* Active Low interrupt, with priority */
- at91_aic_write(AT91_AIC5_SMR,
- AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
-
- irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
- set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
-
- return 0;
-}
-
-static int at91_aic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_type)
-{
- if (WARN_ON(intsize < 3))
- return -EINVAL;
- if (WARN_ON(intspec[0] >= n_irqs))
- return -EINVAL;
- if (WARN_ON((intspec[2] < AT91_AIC_IRQ_MIN_PRIORITY)
- || (intspec[2] > AT91_AIC_IRQ_MAX_PRIORITY)))
- return -EINVAL;
-
- *out_hwirq = intspec[0];
- *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK;
- at91_aic_irq_priorities[*out_hwirq] = intspec[2];
-
- return 0;
-}
-
-static struct irq_domain_ops at91_aic_irq_ops = {
- .map = at91_aic_irq_map,
- .xlate = at91_aic_irq_domain_xlate,
-};
-
-int __init at91_aic_of_common_init(struct device_node *node,
- struct device_node *parent)
-{
- struct property *prop;
- const __be32 *p;
- u32 val;
-
- at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
- * sizeof(*at91_extern_irq), GFP_KERNEL);
- if (!at91_extern_irq)
- return -ENOMEM;
-
- if (at91_aic_pm_init()) {
- kfree(at91_extern_irq);
- return -ENOMEM;
- }
-
- at91_aic_irq_priorities = kzalloc(n_irqs
- * sizeof(*at91_aic_irq_priorities),
- GFP_KERNEL);
- if (!at91_aic_irq_priorities)
- return -ENOMEM;
-
- at91_aic_base = of_iomap(node, 0);
- at91_aic_np = node;
-
- at91_aic_domain = irq_domain_add_linear(at91_aic_np, n_irqs,
- &at91_aic_irq_ops, NULL);
- if (!at91_aic_domain)
- panic("Unable to add AIC irq domain (DT)\n");
-
- of_property_for_each_u32(node, "atmel,external-irqs", prop, p, val) {
- if (val >= n_irqs)
- pr_warn("AIC: external irq %d >= %d skip it\n",
- val, n_irqs);
- else
- set_bit(val, at91_extern_irq);
- }
-
- irq_set_default_host(at91_aic_domain);
-
- return 0;
-}
-
-int __init at91_aic_of_init(struct device_node *node,
- struct device_node *parent)
-{
- int err;
-
- err = at91_aic_of_common_init(node, parent);
- if (err)
- return err;
-
- at91_aic_hw_init(n_irqs);
-
- return 0;
-}
-
-int __init at91_aic5_of_init(struct device_node *node,
- struct device_node *parent)
-{
- int err;
-
- at91_aic_caps |= AT91_AIC_CAP_AIC5;
- n_irqs = NR_AIC5_IRQS;
- at91_aic_chip.irq_ack = at91_aic5_mask_irq;
- at91_aic_chip.irq_mask = at91_aic5_mask_irq;
- at91_aic_chip.irq_unmask = at91_aic5_unmask_irq;
- at91_aic_chip.irq_eoi = at91_aic5_eoi;
- at91_aic_irq_ops.map = at91_aic5_irq_map;
-
- err = at91_aic_of_common_init(node, parent);
- if (err)
- return err;
-
- at91_aic5_hw_init(n_irqs);
-
- return 0;
-}
-#endif
-
/*
* Initialize the AIC interrupt controller.
*/
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index e95554532987..5920373809c5 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -206,16 +206,19 @@ static int at91_pm_enter(suspend_state_t state)
at91_pinctrl_gpio_suspend();
else
at91_gpio_suspend();
- at91_irq_suspend();
- pr_debug("AT91: PM - wake mask %08x, pm state %d\n",
- /* remember all the always-wake irqs */
- (at91_pmc_read(AT91_PMC_PCSR)
- | (1 << AT91_ID_FIQ)
- | (1 << AT91_ID_SYS)
- | (at91_get_extern_irq()))
- & at91_aic_read(AT91_AIC_IMR),
- state);
+ if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base) {
+ at91_irq_suspend();
+
+ pr_debug("AT91: PM - wake mask %08x, pm state %d\n",
+ /* remember all the always-wake irqs */
+ (at91_pmc_read(AT91_PMC_PCSR)
+ | (1 << AT91_ID_FIQ)
+ | (1 << AT91_ID_SYS)
+ | (at91_get_extern_irq()))
+ & at91_aic_read(AT91_AIC_IMR),
+ state);
+ }
switch (state) {
/*
@@ -280,12 +283,17 @@ static int at91_pm_enter(suspend_state_t state)
goto error;
}
- pr_debug("AT91: PM - wakeup %08x\n",
- at91_aic_read(AT91_AIC_IPR) & at91_aic_read(AT91_AIC_IMR));
+ if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base)
+ pr_debug("AT91: PM - wakeup %08x\n",
+ at91_aic_read(AT91_AIC_IPR) &
+ at91_aic_read(AT91_AIC_IMR));
error:
target_state = PM_SUSPEND_ON;
- at91_irq_resume();
+
+ if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base)
+ at91_irq_resume();
+
if (of_have_populated_dt())
at91_pinctrl_gpio_resume();
else
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index f7a07a58ebb6..0bf893a574f9 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -49,7 +49,8 @@ void __init at91_init_irq_default(void)
void __init at91_init_interrupts(unsigned int *priority)
{
/* Initialize the AIC interrupt controller */
- at91_aic_init(priority, at91_boot_soc.extern_irq);
+ if (IS_ENABLED(CONFIG_OLD_IRQ_AT91))
+ at91_aic_init(priority, at91_boot_soc.extern_irq);
/* Enable GPIO interrupts */
at91_gpio_irq_setup();
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 12:57:21 +0000