aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-integrator/impd1.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-integrator/impd1.c')
-rw-r--r--arch/arm/mach-integrator/impd1.c190
1 files changed, 71 insertions, 119 deletions
diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index fd684bf205e..3ce880729cf 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -21,14 +21,13 @@
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <linux/io.h>
+#include <linux/platform_data/clk-integrator.h>
#include <linux/slab.h>
+#include <linux/irqchip/arm-vic.h>
-#include <asm/clkdev.h>
-#include <mach/clkdev.h>
-#include <asm/hardware/icst.h>
-#include <mach/lm.h>
-#include <mach/impd1.h>
#include <asm/sizes.h>
+#include "lm.h"
+#include "impd1.h"
static int module_id;
@@ -37,45 +36,7 @@ MODULE_PARM_DESC(lmid, "logic module stack position");
struct impd1_module {
void __iomem *base;
- struct clk vcos[2];
- struct clk_lookup *clks[3];
-};
-
-static const struct icst_params impd1_vco_params = {
- .ref = 24000000, /* 24 MHz */
- .vco_max = ICST525_VCO_MAX_3V,
- .vco_min = ICST525_VCO_MIN,
- .vd_min = 12,
- .vd_max = 519,
- .rd_min = 3,
- .rd_max = 120,
- .s2div = icst525_s2div,
- .idx2s = icst525_idx2s,
-};
-
-static void impd1_setvco(struct clk *clk, struct icst_vco vco)
-{
- struct impd1_module *impd1 = clk->data;
- u32 val = vco.v | (vco.r << 9) | (vco.s << 16);
-
- writel(0xa05f, impd1->base + IMPD1_LOCK);
- writel(val, clk->vcoreg);
- writel(0, impd1->base + IMPD1_LOCK);
-
-#ifdef DEBUG
- vco.v = val & 0x1ff;
- vco.r = (val >> 9) & 0x7f;
- vco.s = (val >> 16) & 7;
-
- pr_debug("IM-PD1: VCO%d clock is %ld Hz\n",
- vconr, icst525_hz(&impd1_vco_params, vco));
-#endif
-}
-
-static const struct clk_ops impd1_clk_ops = {
- .round = icst_clk_round,
- .set = icst_clk_set,
- .setvco = impd1_setvco,
+ void __iomem *vic_base;
};
void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
@@ -122,6 +83,7 @@ static struct clcd_panel vga = {
.height = -1,
.tim2 = TIM2_BCD | TIM2_IPC,
.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .caps = CLCD_CAP_5551,
.connector = IMPD1_CTRL_DISP_VGA,
.bpp = 16,
.grayscale = 0,
@@ -150,6 +112,7 @@ static struct clcd_panel svga = {
.tim2 = TIM2_BCD,
.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
.connector = IMPD1_CTRL_DISP_VGA,
+ .caps = CLCD_CAP_5551,
.bpp = 16,
.grayscale = 0,
};
@@ -176,6 +139,7 @@ static struct clcd_panel prospector = {
.height = -1,
.tim2 = TIM2_BCD,
.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .caps = CLCD_CAP_5551,
.fixedtimings = 1,
.connector = IMPD1_CTRL_DISP_LCD,
.bpp = 16,
@@ -207,6 +171,7 @@ static struct clcd_panel ltm10c209 = {
.height = -1,
.tim2 = TIM2_BCD,
.cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .caps = CLCD_CAP_5551,
.fixedtimings = 1,
.connector = IMPD1_CTRL_DISP_LCD,
.bpp = 16,
@@ -280,6 +245,7 @@ static void impd1fb_clcd_remove(struct clcd_fb *fb)
static struct clcd_board impd1_clcd_data = {
.name = "IM-PD/1",
+ .caps = CLCD_CAP_5551 | CLCD_CAP_888,
.check = clcdfb_check,
.decode = clcdfb_decode,
.disable = impd1fb_clcd_disable,
@@ -298,9 +264,6 @@ struct impd1_device {
static struct impd1_device impd1_devs[] = {
{
- .offset = 0x03000000,
- .id = 0x00041190,
- }, {
.offset = 0x00100000,
.irq = { 1 },
.id = 0x00141011,
@@ -340,93 +303,86 @@ static struct impd1_device impd1_devs[] = {
}
};
-static struct clk fixed_14745600 = {
- .rate = 14745600,
-};
+/*
+ * Valid IRQs: 0 thru 9 and 11, 10 unused.
+ */
+#define IMPD1_VALID_IRQS 0x00000bffU
-static int impd1_probe(struct lm_device *dev)
+/*
+ * As this module is bool, it is OK to have this as __init_refok() - no
+ * probe calls will be done after the initial system bootup, as devices
+ * are discovered as part of the machine startup.
+ */
+static int __init_refok impd1_probe(struct lm_device *dev)
{
struct impd1_module *impd1;
- int i, ret;
+ int irq_base;
+ int i;
if (dev->id != module_id)
return -EINVAL;
- if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
+ if (!devm_request_mem_region(&dev->dev, dev->resource.start,
+ SZ_4K, "LM registers"))
return -EBUSY;
- impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL);
- if (!impd1) {
- ret = -ENOMEM;
- goto release_lm;
- }
+ impd1 = devm_kzalloc(&dev->dev, sizeof(struct impd1_module),
+ GFP_KERNEL);
+ if (!impd1)
+ return -ENOMEM;
- impd1->base = ioremap(dev->resource.start, SZ_4K);
- if (!impd1->base) {
- ret = -ENOMEM;
- goto free_impd1;
- }
+ impd1->base = devm_ioremap(&dev->dev, dev->resource.start, SZ_4K);
+ if (!impd1->base)
+ return -ENOMEM;
- lm_set_drvdata(dev, impd1);
+ integrator_impd1_clk_init(impd1->base, dev->id);
+
+ if (!devm_request_mem_region(&dev->dev,
+ dev->resource.start + 0x03000000,
+ SZ_4K, "VIC"))
+ return -EBUSY;
- printk("IM-PD1 found at 0x%08lx\n",
- (unsigned long)dev->resource.start);
+ impd1->vic_base = devm_ioremap(&dev->dev,
+ dev->resource.start + 0x03000000,
+ SZ_4K);
+ if (!impd1->vic_base)
+ return -ENOMEM;
- for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) {
- impd1->vcos[i].ops = &impd1_clk_ops,
- impd1->vcos[i].owner = THIS_MODULE,
- impd1->vcos[i].params = &impd1_vco_params,
- impd1->vcos[i].data = impd1;
- }
- impd1->vcos[0].vcoreg = impd1->base + IMPD1_OSC1;
- impd1->vcos[1].vcoreg = impd1->base + IMPD1_OSC2;
-
- impd1->clks[0] = clkdev_alloc(&impd1->vcos[0], NULL, "lm%x:01000",
- dev->id);
- impd1->clks[1] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00100",
- dev->id);
- impd1->clks[2] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00200",
- dev->id);
- for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
- clkdev_add(impd1->clks[i]);
+ irq_base = vic_init_cascaded(impd1->vic_base, dev->irq,
+ IMPD1_VALID_IRQS, 0);
+
+ lm_set_drvdata(dev, impd1);
+
+ 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];
- pc_base = dev->resource.start + idev->offset;
+ /* Translate IRQs to IM-PD1 local numberspace */
+ if (irq1)
+ irq1 += irq_base;
+ if (irq2)
+ irq2 += irq_base;
- d = kzalloc(sizeof(struct amba_device), GFP_KERNEL);
- if (!d)
+ 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,
+ irq1, irq2,
+ idev->platform_data, idev->id,
+ &dev->resource);
+ if (IS_ERR(d)) {
+ dev_err(&dev->dev, "unable to register device: %ld\n", PTR_ERR(d));
continue;
-
- dev_set_name(&d->dev, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
- d->dev.parent = &dev->dev;
- d->res.start = dev->resource.start + idev->offset;
- d->res.end = d->res.start + SZ_4K - 1;
- d->res.flags = IORESOURCE_MEM;
- d->irq[0] = dev->irq;
- d->irq[1] = dev->irq;
- d->periphid = idev->id;
- d->dev.platform_data = idev->platform_data;
-
- ret = amba_device_register(d, &dev->resource);
- if (ret) {
- dev_err(&d->dev, "unable to register device: %d\n", ret);
- kfree(d);
}
}
return 0;
-
- free_impd1:
- if (impd1 && impd1->base)
- iounmap(impd1->base);
- kfree(impd1);
- release_lm:
- release_mem_region(dev->resource.start, SZ_4K);
- return ret;
}
static int impd1_remove_one(struct device *dev, void *data)
@@ -437,24 +393,20 @@ static int impd1_remove_one(struct device *dev, void *data)
static void impd1_remove(struct lm_device *dev)
{
- struct impd1_module *impd1 = lm_get_drvdata(dev);
- int i;
-
device_for_each_child(&dev->dev, NULL, impd1_remove_one);
-
- for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
- clkdev_drop(impd1->clks[i]);
+ integrator_impd1_clk_exit(dev->id);
lm_set_drvdata(dev, NULL);
-
- iounmap(impd1->base);
- kfree(impd1);
- release_mem_region(dev->resource.start, SZ_4K);
}
static struct lm_driver impd1_driver = {
.drv = {
.name = "impd1",
+ /*
+ * As we're dropping the probe() function, suppress driver
+ * binding from sysfs.
+ */
+ .suppress_bind_attrs = true,
},
.probe = impd1_probe,
.remove = impd1_remove,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 10:54:22 +0000