+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/mach-integrator/impd1.c
- *
- * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
- *
- * 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 <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/amba/mmci.h>
-#include <linux/io.h>
-#include <linux/platform_data/clk-integrator.h>
-#include <linux/slab.h>
-#include <linux/irqchip/arm-vic.h>
-#include <linux/gpio/machine.h>
-
-#include <linux/sizes.h>
-#include "lm.h"
-#include "impd1.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;
- void __iomem *vic_base;
-};
-
-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);
-
-/*
- * MMC support
- */
-static struct mmci_platform_data mmc_data = {
- .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
-};
-
-/*
- * 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),
- .caps = CLCD_CAP_5551,
- .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,
- .caps = CLCD_CAP_5551,
- .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),
- .caps = CLCD_CAP_5551,
- .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),
- .caps = CLCD_CAP_5551,
- .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",
- .caps = CLCD_CAP_5551 | CLCD_CAP_888,
- .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 = 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,
- .platform_data = &mmc_data,
- }, {
- .offset = 0x00800000,
- .irq = { 9 },
- .id = 0x00041041,
- }, {
- .offset = 0x01000000,
- .irq = { 11 },
- .id = 0x00041110,
- .platform_data = &impd1_clcd_data,
- }
-};
-
-/*
- * Valid IRQs: 0 thru 9 and 11, 10 unused.
- */
-#define IMPD1_VALID_IRQS 0x00000bffU
-
-/*
- * As this module is bool, it is OK to have this as __ref() - no
- * probe calls will be done after the initial system bootup, as devices
- * are discovered as part of the machine startup.
- */
-static int __ref impd1_probe(struct lm_device *dev)
-{
- struct impd1_module *impd1;
- int irq_base;
- int i;
-
- if (dev->id != module_id)
- return -EINVAL;
-
- if (!devm_request_mem_region(&dev->dev, dev->resource.start,
- SZ_4K, "LM registers"))
- return -EBUSY;
-
- impd1 = devm_kzalloc(&dev->dev, sizeof(struct impd1_module),
- GFP_KERNEL);
- if (!impd1)
- return -ENOMEM;
-
- impd1->base = devm_ioremap(&dev->dev, dev->resource.start, SZ_4K);
- 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);
-
- 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);
-
- /* Add GPIO descriptor lookup table for the PL061 block */
- if (idev->offset == 0x00400000) {
- struct gpiod_lookup_table *lookup;
- char *chipname;
- char *mmciname;
-
- lookup = devm_kzalloc(&dev->dev,
- struct_size(lookup, table, 3),
- GFP_KERNEL);
- chipname = devm_kstrdup(&dev->dev, devname, GFP_KERNEL);
- mmciname = devm_kasprintf(&dev->dev, GFP_KERNEL,
- "lm%x:00700", dev->id);
- if (!lookup || !chipname || !mmciname)
- return -ENOMEM;
-
- lookup->dev_id = mmciname;
- /*
- * Offsets on GPIO block 1:
- * 3 = MMC WP (write protect)
- * 4 = MMC CD (card detect)
- *
- * Offsets on GPIO block 2:
- * 0 = Up key
- * 1 = Down key
- * 2 = Left key
- * 3 = Right key
- * 4 = Key lower left
- * 5 = Key lower right
- */
- /* We need the two MMCI GPIO entries */
- lookup->table[0] = (struct gpiod_lookup)
- GPIO_LOOKUP(chipname, 3, "wp", 0);
- lookup->table[1] = (struct gpiod_lookup)
- GPIO_LOOKUP(chipname, 4, "cd", GPIO_ACTIVE_LOW);
- gpiod_add_lookup_table(lookup);
- }
-
- 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;
- }
- }
-
- return 0;
-}
-
-static int impd1_remove_one(struct device *dev, void *data)
-{
- device_unregister(dev);
- return 0;
-}
-
-static void impd1_remove(struct lm_device *dev)
-{
- device_for_each_child(&dev->dev, NULL, impd1_remove_one);
- integrator_impd1_clk_exit(dev->id);
-
- lm_set_drvdata(dev, NULL);
-}
-
-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,
-};
-
-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");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/mach-integrator/lm.c
- *
- * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
- */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-#include "lm.h"
-
-#define to_lm_device(d) container_of(d, struct lm_device, dev)
-#define to_lm_driver(d) container_of(d, struct lm_driver, drv)
-
-static int lm_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
-static int lm_bus_probe(struct device *dev)
-{
- struct lm_device *lmdev = to_lm_device(dev);
- struct lm_driver *lmdrv = to_lm_driver(dev->driver);
-
- return lmdrv->probe(lmdev);
-}
-
-static int lm_bus_remove(struct device *dev)
-{
- struct lm_device *lmdev = to_lm_device(dev);
- struct lm_driver *lmdrv = to_lm_driver(dev->driver);
-
- if (lmdrv->remove)
- lmdrv->remove(lmdev);
- return 0;
-}
-
-static struct bus_type lm_bustype = {
- .name = "logicmodule",
- .match = lm_match,
- .probe = lm_bus_probe,
- .remove = lm_bus_remove,
-// .suspend = lm_bus_suspend,
-// .resume = lm_bus_resume,
-};
-
-static int __init lm_init(void)
-{
- return bus_register(&lm_bustype);
-}
-
-postcore_initcall(lm_init);
-
-int lm_driver_register(struct lm_driver *drv)
-{
- drv->drv.bus = &lm_bustype;
- return driver_register(&drv->drv);
-}
-
-void lm_driver_unregister(struct lm_driver *drv)
-{
- driver_unregister(&drv->drv);
-}
-
-static void lm_device_release(struct device *dev)
-{
- struct lm_device *d = to_lm_device(dev);
-
- kfree(d);
-}
-
-int lm_device_register(struct lm_device *dev)
-{
- int ret;
-
- dev->dev.release = lm_device_release;
- dev->dev.bus = &lm_bustype;
-
- ret = dev_set_name(&dev->dev, "lm%d", dev->id);
- if (ret)
- return ret;
- dev->resource.name = dev_name(&dev->dev);
-
- ret = request_resource(&iomem_resource, &dev->resource);
- if (ret == 0) {
- ret = device_register(&dev->dev);
- if (ret)
- release_resource(&dev->resource);
- }
- return ret;
-}
-
-EXPORT_SYMBOL(lm_driver_register);
-EXPORT_SYMBOL(lm_driver_unregister);
projects / platform / kernel / linux-rpi.git / commitdiff