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ARM: integrator: register the IM-PD1 VIC

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The peripherals on the IM-PD1 has never really been able to
properly fire their IRQs to the main FPGA IRQ controller.
Cascade it properly and register interrupts for all the
devices in the array.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2013-11-21 23:13:17 +01:00
parent 31d951e2c9
commit 52d555ffff
2 changed files with 37 additions and 9 deletions
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1
arch/arm/mach-integrator/Kconfig
View File

@ -30,6 +30,7 @@ config ARCH_CINTEGRATOR
config INTEGRATOR_IMPD1
tristate "Include support for Integrator/IM-PD1"
depends on ARCH_INTEGRATOR_AP
select ARM_VIC
help
The IM-PD1 is an add-on logic module for the Integrator which
allows ARM(R) Ltd PrimeCells to be developed and evaluated.

45
arch/arm/mach-integrator/impd1.c
View File

@ -23,6 +23,7 @@
#include <linux/io.h>
#include <linux/platform_data/clk-integrator.h>
#include <linux/slab.h>
#include <linux/irqchip/arm-vic.h>
#include <mach/lm.h>
#include <mach/impd1.h>
@ -35,6 +36,7 @@ MODULE_PARM_DESC(lmid, "logic module stack position");
struct impd1_module {
void __iomem *base;
void __iomem *vic_base;
};
void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
@ -262,9 +264,6 @@ struct impd1_device {
static struct impd1_device impd1_devs[] = {
{
.offset = 0x03000000,
.id = 0x00041190,
}, {
.offset = 0x00100000,
.irq = { 1 },
.id = 0x00141011,
@ -304,9 +303,15 @@ static struct impd1_device impd1_devs[] = {
}
};
static int impd1_probe(struct lm_device *dev)
/*
* Valid IRQs: 0 thru 9 and 11, 10 unused.
*/
#define IMPD1_VALID_IRQS 0x00000bffU
static int __init impd1_probe(struct lm_device *dev)
{
struct impd1_module *impd1;
int irq_base;
int i;
if (dev->id != module_id)
@ -325,23 +330,45 @@ static int impd1_probe(struct lm_device *dev)
if (!impd1->base)
return -ENOMEM;
integrator_impd1_clk_init(impd1->base, dev->id);
if (!devm_request_mem_region(&dev->dev,
dev->resource.start + 0x03000000,
SZ_4K, "VIC"))
return -EBUSY;
impd1->vic_base = devm_ioremap(&dev->dev,
dev->resource.start + 0x03000000,
SZ_4K);
if (!impd1->vic_base)
return -ENOMEM;
irq_base = vic_init_cascaded(impd1->vic_base, dev->irq,
IMPD1_VALID_IRQS, 0);
lm_set_drvdata(dev, impd1);
printk("IM-PD1 found at 0x%08lx\n",
(unsigned long)dev->resource.start);
integrator_impd1_clk_init(impd1->base, dev->id);
dev_info(&dev->dev, "IM-PD1 found at 0x%08lx\n",
(unsigned long)dev->resource.start);
for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
struct impd1_device *idev = impd1_devs + i;
struct amba_device *d;
unsigned long pc_base;
char devname[32];
int irq1 = idev->irq[0];
int irq2 = idev->irq[1];
/* Translate IRQs to IM-PD1 local numberspace */
if (irq1)
irq1 += irq_base;
if (irq2)
irq2 += irq_base;
pc_base = dev->resource.start + idev->offset;
snprintf(devname, 32, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
d = amba_ahb_device_add_res(&dev->dev, devname, pc_base, SZ_4K,
dev->irq, dev->irq,
irq1, irq2,
idev->platform_data, idev->id,
&dev->resource);
if (IS_ERR(d)) {