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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-integrator/impd1.c
downloadlinux-stericsson-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-integrator/impd1.c')
-rw-r--r--arch/arm/mach-integrator/impd1.c475
1 files changed, 475 insertions, 0 deletions
diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
new file mode 100644
index 000000000000..c3c2f17d030e
--- /dev/null
+++ b/arch/arm/mach-integrator/impd1.c
@@ -0,0 +1,475 @@
+/*
+ * linux/arch/arm/mach-integrator/impd1.c
+ *
+ * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file provides the core support for the IM-PD1 module.
+ *
+ * Module / boot parameters.
+ * lmid=n impd1.lmid=n - set the logic module position in stack to 'n'
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+
+#include <asm/io.h>
+#include <asm/hardware/icst525.h>
+#include <asm/hardware/amba.h>
+#include <asm/hardware/amba_clcd.h>
+#include <asm/arch/lm.h>
+#include <asm/arch/impd1.h>
+#include <asm/sizes.h>
+
+#include "clock.h"
+
+static int module_id;
+
+module_param_named(lmid, module_id, int, 0444);
+MODULE_PARM_DESC(lmid, "logic module stack position");
+
+struct impd1_module {
+ void __iomem *base;
+ struct clk vcos[2];
+};
+
+static const struct icst525_params impd1_vco_params = {
+ .ref = 24000, /* 24 MHz */
+ .vco_max = 200000, /* 200 MHz */
+ .vd_min = 12,
+ .vd_max = 519,
+ .rd_min = 3,
+ .rd_max = 120,
+};
+
+static void impd1_setvco(struct clk *clk, struct icst525_vco vco)
+{
+ struct impd1_module *impd1 = clk->data;
+ int vconr = clk - impd1->vcos;
+ u32 val;
+
+ val = vco.v | (vco.r << 9) | (vco.s << 16);
+
+ writel(0xa05f, impd1->base + IMPD1_LOCK);
+ switch (vconr) {
+ case 0:
+ writel(val, impd1->base + IMPD1_OSC1);
+ break;
+ case 1:
+ writel(val, impd1->base + IMPD1_OSC2);
+ break;
+ }
+ writel(0, impd1->base + IMPD1_LOCK);
+
+#if DEBUG
+ vco.v = val & 0x1ff;
+ vco.r = (val >> 9) & 0x7f;
+ vco.s = (val >> 16) & 7;
+
+ pr_debug("IM-PD1: VCO%d clock is %ld kHz\n",
+ vconr, icst525_khz(&impd1_vco_params, vco));
+#endif
+}
+
+void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
+{
+ struct impd1_module *impd1 = dev_get_drvdata(dev);
+ u32 cur;
+
+ val &= mask;
+ cur = readl(impd1->base + IMPD1_CTRL) & ~mask;
+ writel(cur | val, impd1->base + IMPD1_CTRL);
+}
+
+EXPORT_SYMBOL(impd1_tweak_control);
+
+/*
+ * CLCD support
+ */
+#define PANEL PROSPECTOR
+
+#define LTM10C209 1
+#define PROSPECTOR 2
+#define SVGA 3
+#define VGA 4
+
+#if PANEL == VGA
+#define PANELTYPE vga
+static struct clcd_panel vga = {
+ .mode = {
+ .name = "VGA",
+ .refresh = 60,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = 39721,
+ .left_margin = 40,
+ .right_margin = 24,
+ .upper_margin = 32,
+ .lower_margin = 11,
+ .hsync_len = 96,
+ .vsync_len = 2,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_BCD | TIM2_IPC,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .connector = IMPD1_CTRL_DISP_VGA,
+ .bpp = 16,
+ .grayscale = 0,
+};
+
+#elif PANEL == SVGA
+#define PANELTYPE svga
+static struct clcd_panel svga = {
+ .mode = {
+ .name = "SVGA",
+ .refresh = 0,
+ .xres = 800,
+ .yres = 600,
+ .pixclock = 27778,
+ .left_margin = 20,
+ .right_margin = 20,
+ .upper_margin = 5,
+ .lower_margin = 5,
+ .hsync_len = 164,
+ .vsync_len = 62,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_BCD,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .connector = IMPD1_CTRL_DISP_VGA,
+ .bpp = 16,
+ .grayscale = 0,
+};
+
+#elif PANEL == PROSPECTOR
+#define PANELTYPE prospector
+static struct clcd_panel prospector = {
+ .mode = {
+ .name = "PROSPECTOR",
+ .refresh = 0,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = 40000,
+ .left_margin = 33,
+ .right_margin = 64,
+ .upper_margin = 36,
+ .lower_margin = 7,
+ .hsync_len = 64,
+ .vsync_len = 25,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_BCD,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .fixedtimings = 1,
+ .connector = IMPD1_CTRL_DISP_LCD,
+ .bpp = 16,
+ .grayscale = 0,
+};
+
+#elif PANEL == LTM10C209
+#define PANELTYPE ltm10c209
+/*
+ * Untested.
+ */
+static struct clcd_panel ltm10c209 = {
+ .mode = {
+ .name = "LTM10C209",
+ .refresh = 0,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = 40000,
+ .left_margin = 20,
+ .right_margin = 20,
+ .upper_margin = 19,
+ .lower_margin = 19,
+ .hsync_len = 20,
+ .vsync_len = 10,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_BCD,
+ .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+ .fixedtimings = 1,
+ .connector = IMPD1_CTRL_DISP_LCD,
+ .bpp = 16,
+ .grayscale = 0,
+};
+#endif
+
+/*
+ * Disable all display connectors on the interface module.
+ */
+static void impd1fb_clcd_disable(struct clcd_fb *fb)
+{
+ impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK, 0);
+}
+
+/*
+ * Enable the relevant connector on the interface module.
+ */
+static void impd1fb_clcd_enable(struct clcd_fb *fb)
+{
+ impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK,
+ fb->panel->connector | IMPD1_CTRL_DISP_ENABLE);
+}
+
+static int impd1fb_clcd_setup(struct clcd_fb *fb)
+{
+ unsigned long framebase = fb->dev->res.start + 0x01000000;
+ unsigned long framesize = SZ_1M;
+ int ret = 0;
+
+ fb->panel = &PANELTYPE;
+
+ if (!request_mem_region(framebase, framesize, "clcd framebuffer")) {
+ printk(KERN_ERR "IM-PD1: unable to reserve framebuffer\n");
+ return -EBUSY;
+ }
+
+ fb->fb.screen_base = ioremap(framebase, framesize);
+ if (!fb->fb.screen_base) {
+ printk(KERN_ERR "IM-PD1: unable to map framebuffer\n");
+ ret = -ENOMEM;
+ goto free_buffer;
+ }
+
+ fb->fb.fix.smem_start = framebase;
+ fb->fb.fix.smem_len = framesize;
+
+ return 0;
+
+ free_buffer:
+ release_mem_region(framebase, framesize);
+ return ret;
+}
+
+static int impd1fb_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+ unsigned long start, size;
+
+ start = vma->vm_pgoff + (fb->fb.fix.smem_start >> PAGE_SHIFT);
+ size = vma->vm_end - vma->vm_start;
+
+ return remap_pfn_range(vma, vma->vm_start, start, size,
+ vma->vm_page_prot);
+}
+
+static void impd1fb_clcd_remove(struct clcd_fb *fb)
+{
+ iounmap(fb->fb.screen_base);
+ release_mem_region(fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+}
+
+static struct clcd_board impd1_clcd_data = {
+ .name = "IM-PD/1",
+ .check = clcdfb_check,
+ .decode = clcdfb_decode,
+ .disable = impd1fb_clcd_disable,
+ .enable = impd1fb_clcd_enable,
+ .setup = impd1fb_clcd_setup,
+ .mmap = impd1fb_clcd_mmap,
+ .remove = impd1fb_clcd_remove,
+};
+
+struct impd1_device {
+ unsigned long offset;
+ unsigned int irq[2];
+ unsigned int id;
+ void *platform_data;
+};
+
+static struct impd1_device impd1_devs[] = {
+ {
+ .offset = 0x03000000,
+ .id = 0x00041190,
+ }, {
+ .offset = 0x00100000,
+ .irq = { 1 },
+ .id = 0x00141011,
+ }, {
+ .offset = 0x00200000,
+ .irq = { 2 },
+ .id = 0x00141011,
+ }, {
+ .offset = 0x00300000,
+ .irq = { 3 },
+ .id = 0x00041022,
+ }, {
+ .offset = 0x00400000,
+ .irq = { 4 },
+ .id = 0x00041061,
+ }, {
+ .offset = 0x00500000,
+ .irq = { 5 },
+ .id = 0x00041061,
+ }, {
+ .offset = 0x00600000,
+ .irq = { 6 },
+ .id = 0x00041130,
+ }, {
+ .offset = 0x00700000,
+ .irq = { 7, 8 },
+ .id = 0x00041181,
+ }, {
+ .offset = 0x00800000,
+ .irq = { 9 },
+ .id = 0x00041041,
+ }, {
+ .offset = 0x01000000,
+ .irq = { 11 },
+ .id = 0x00041110,
+ .platform_data = &impd1_clcd_data,
+ }
+};
+
+static const char *impd1_vconames[2] = {
+ "CLCDCLK",
+ "AUXVCO2",
+};
+
+static int impd1_probe(struct lm_device *dev)
+{
+ struct impd1_module *impd1;
+ int i, ret;
+
+ if (dev->id != module_id)
+ return -EINVAL;
+
+ if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
+ return -EBUSY;
+
+ impd1 = kmalloc(sizeof(struct impd1_module), GFP_KERNEL);
+ if (!impd1) {
+ ret = -ENOMEM;
+ goto release_lm;
+ }
+ memset(impd1, 0, sizeof(struct impd1_module));
+
+ impd1->base = ioremap(dev->resource.start, SZ_4K);
+ if (!impd1->base) {
+ ret = -ENOMEM;
+ goto free_impd1;
+ }
+
+ lm_set_drvdata(dev, impd1);
+
+ printk("IM-PD1 found at 0x%08lx\n", dev->resource.start);
+
+ for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) {
+ impd1->vcos[i].owner = THIS_MODULE,
+ impd1->vcos[i].name = impd1_vconames[i],
+ impd1->vcos[i].params = &impd1_vco_params,
+ impd1->vcos[i].data = impd1,
+ impd1->vcos[i].setvco = impd1_setvco;
+
+ clk_register(&impd1->vcos[i]);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
+ struct impd1_device *idev = impd1_devs + i;
+ struct amba_device *d;
+ unsigned long pc_base;
+
+ pc_base = dev->resource.start + idev->offset;
+
+ d = kmalloc(sizeof(struct amba_device), GFP_KERNEL);
+ if (!d)
+ continue;
+
+ memset(d, 0, sizeof(struct amba_device));
+
+ snprintf(d->dev.bus_id, sizeof(d->dev.bus_id),
+ "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) {
+ printk("unable to register device %s: %d\n",
+ d->dev.bus_id, ret);
+ kfree(d);
+ }
+ }
+
+ return 0;
+
+ free_impd1:
+ if (impd1 && impd1->base)
+ iounmap(impd1->base);
+ if (impd1)
+ kfree(impd1);
+ release_lm:
+ release_mem_region(dev->resource.start, SZ_4K);
+ return ret;
+}
+
+static void impd1_remove(struct lm_device *dev)
+{
+ struct impd1_module *impd1 = lm_get_drvdata(dev);
+ struct list_head *l, *n;
+ int i;
+
+ list_for_each_safe(l, n, &dev->dev.children) {
+ struct device *d = list_to_dev(l);
+
+ device_unregister(d);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++)
+ clk_unregister(&impd1->vcos[i]);
+
+ 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",
+ },
+ .probe = impd1_probe,
+ .remove = impd1_remove,
+};
+
+static int __init impd1_init(void)
+{
+ return lm_driver_register(&impd1_driver);
+}
+
+static void __exit impd1_exit(void)
+{
+ lm_driver_unregister(&impd1_driver);
+}
+
+module_init(impd1_init);
+module_exit(impd1_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Integrator/IM-PD1 logic module core driver");
+MODULE_AUTHOR("Deep Blue Solutions Ltd");