[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/drivers/video/platinumfb.c b/ap/os/linux/linux-3.4.x/drivers/video/platinumfb.c
new file mode 100644
index 0000000..ae3caa6
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/video/platinumfb.c
@@ -0,0 +1,714 @@
+/*
+ * platinumfb.c -- frame buffer device for the PowerMac 'platinum' display
+ *
+ * Copyright (C) 1998 Franz Sirl
+ *
+ * Frame buffer structure from:
+ * drivers/video/controlfb.c -- frame buffer device for
+ * Apple 'control' display chip.
+ * Copyright (C) 1998 Dan Jacobowitz
+ *
+ * Hardware information from:
+ * platinum.c: Console support for PowerMac "platinum" display adaptor.
+ * Copyright (C) 1996 Paul Mackerras and Mark Abene
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#undef DEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/nvram.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/pgtable.h>
+
+#include "macmodes.h"
+#include "platinumfb.h"
+
+static int default_vmode = VMODE_NVRAM;
+static int default_cmode = CMODE_NVRAM;
+
+struct fb_info_platinum {
+ struct fb_info *info;
+
+ int vmode, cmode;
+ int xres, yres;
+ int vxres, vyres;
+ int xoffset, yoffset;
+
+ struct {
+ __u8 red, green, blue;
+ } palette[256];
+ u32 pseudo_palette[16];
+
+ volatile struct cmap_regs __iomem *cmap_regs;
+ unsigned long cmap_regs_phys;
+
+ volatile struct platinum_regs __iomem *platinum_regs;
+ unsigned long platinum_regs_phys;
+
+ __u8 __iomem *frame_buffer;
+ volatile __u8 __iomem *base_frame_buffer;
+ unsigned long frame_buffer_phys;
+
+ unsigned long total_vram;
+ int clktype;
+ int dactype;
+
+ struct resource rsrc_fb, rsrc_reg;
+};
+
+/*
+ * Frame buffer device API
+ */
+
+static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info);
+static int platinumfb_blank(int blank_mode, struct fb_info *info);
+static int platinumfb_set_par (struct fb_info *info);
+static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info);
+
+/*
+ * internal functions
+ */
+
+static inline int platinum_vram_reqd(int video_mode, int color_mode);
+static int read_platinum_sense(struct fb_info_platinum *pinfo);
+static void set_platinum_clock(struct fb_info_platinum *pinfo);
+static void platinum_set_hardware(struct fb_info_platinum *pinfo);
+static int platinum_var_to_par(struct fb_var_screeninfo *var,
+ struct fb_info_platinum *pinfo,
+ int check_only);
+
+/*
+ * Interface used by the world
+ */
+
+static struct fb_ops platinumfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = platinumfb_check_var,
+ .fb_set_par = platinumfb_set_par,
+ .fb_setcolreg = platinumfb_setcolreg,
+ .fb_blank = platinumfb_blank,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+/*
+ * Checks a var structure
+ */
+static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ return platinum_var_to_par(var, info->par, 1);
+}
+
+/*
+ * Applies current var to display
+ */
+static int platinumfb_set_par (struct fb_info *info)
+{
+ struct fb_info_platinum *pinfo = info->par;
+ struct platinum_regvals *init;
+ int err, offset = 0x20;
+
+ if((err = platinum_var_to_par(&info->var, pinfo, 0))) {
+ printk (KERN_ERR "platinumfb_set_par: error calling"
+ " platinum_var_to_par: %d.\n", err);
+ return err;
+ }
+
+ platinum_set_hardware(pinfo);
+
+ init = platinum_reg_init[pinfo->vmode-1];
+
+ if ((pinfo->vmode == VMODE_832_624_75) && (pinfo->cmode > CMODE_8))
+ offset = 0x10;
+
+ info->screen_base = pinfo->frame_buffer + init->fb_offset + offset;
+ mutex_lock(&info->mm_lock);
+ info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset;
+ mutex_unlock(&info->mm_lock);
+ info->fix.visual = (pinfo->cmode == CMODE_8) ?
+ FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
+ info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<<pinfo->cmode)
+ + offset;
+ printk("line_length: %x\n", info->fix.line_length);
+ return 0;
+}
+
+static int platinumfb_blank(int blank, struct fb_info *fb)
+{
+/*
+ * Blank the screen if blank_mode != 0, else unblank. If blank == NULL
+ * then the caller blanks by setting the CLUT (Color Look Up Table) to all
+ * black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due
+ * to e.g. a video mode which doesn't support it. Implements VESA suspend
+ * and powerdown modes on hardware that supports disabling hsync/vsync:
+ * blank_mode == 2: suspend vsync
+ * blank_mode == 3: suspend hsync
+ * blank_mode == 4: powerdown
+ */
+/* [danj] I think there's something fishy about those constants... */
+/*
+ struct fb_info_platinum *info = (struct fb_info_platinum *) fb;
+ int ctrl;
+
+ ctrl = ld_le32(&info->platinum_regs->ctrl.r) | 0x33;
+ if (blank)
+ --blank_mode;
+ if (blank & VESA_VSYNC_SUSPEND)
+ ctrl &= ~3;
+ if (blank & VESA_HSYNC_SUSPEND)
+ ctrl &= ~0x30;
+ out_le32(&info->platinum_regs->ctrl.r, ctrl);
+*/
+/* TODO: Figure out how the heck to powerdown this thing! */
+ return 0;
+}
+
+static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ struct fb_info_platinum *pinfo = info->par;
+ volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
+
+ if (regno > 255)
+ return 1;
+
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+
+ pinfo->palette[regno].red = red;
+ pinfo->palette[regno].green = green;
+ pinfo->palette[regno].blue = blue;
+
+ out_8(&cmap_regs->addr, regno); /* tell clut what addr to fill */
+ out_8(&cmap_regs->lut, red); /* send one color channel at */
+ out_8(&cmap_regs->lut, green); /* a time... */
+ out_8(&cmap_regs->lut, blue);
+
+ if (regno < 16) {
+ int i;
+ u32 *pal = info->pseudo_palette;
+ switch (pinfo->cmode) {
+ case CMODE_16:
+ pal[regno] = (regno << 10) | (regno << 5) | regno;
+ break;
+ case CMODE_32:
+ i = (regno << 8) | regno;
+ pal[regno] = (i << 16) | i;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static inline int platinum_vram_reqd(int video_mode, int color_mode)
+{
+ int baseval = vmode_attrs[video_mode-1].hres * (1<<color_mode);
+
+ if ((video_mode == VMODE_832_624_75) && (color_mode > CMODE_8))
+ baseval += 0x10;
+ else
+ baseval += 0x20;
+
+ return vmode_attrs[video_mode-1].vres * baseval + 0x1000;
+}
+
+#define STORE_D2(a, d) { \
+ out_8(&cmap_regs->addr, (a+32)); \
+ out_8(&cmap_regs->d2, (d)); \
+}
+
+static void set_platinum_clock(struct fb_info_platinum *pinfo)
+{
+ volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
+ struct platinum_regvals *init;
+
+ init = platinum_reg_init[pinfo->vmode-1];
+
+ STORE_D2(6, 0xc6);
+ out_8(&cmap_regs->addr,3+32);
+
+ if (in_8(&cmap_regs->d2) == 2) {
+ STORE_D2(7, init->clock_params[pinfo->clktype][0]);
+ STORE_D2(8, init->clock_params[pinfo->clktype][1]);
+ STORE_D2(3, 3);
+ } else {
+ STORE_D2(4, init->clock_params[pinfo->clktype][0]);
+ STORE_D2(5, init->clock_params[pinfo->clktype][1]);
+ STORE_D2(3, 2);
+ }
+
+ __delay(5000);
+ STORE_D2(9, 0xa6);
+}
+
+
+/* Now how about actually saying, Make it so! */
+/* Some things in here probably don't need to be done each time. */
+static void platinum_set_hardware(struct fb_info_platinum *pinfo)
+{
+ volatile struct platinum_regs __iomem *platinum_regs = pinfo->platinum_regs;
+ volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
+ struct platinum_regvals *init;
+ int i;
+ int vmode, cmode;
+
+ vmode = pinfo->vmode;
+ cmode = pinfo->cmode;
+
+ init = platinum_reg_init[vmode - 1];
+
+ /* Initialize display timing registers */
+ out_be32(&platinum_regs->reg[24].r, 7); /* turn display off */
+
+ for (i = 0; i < 26; ++i)
+ out_be32(&platinum_regs->reg[i+32].r, init->regs[i]);
+
+ out_be32(&platinum_regs->reg[26+32].r, (pinfo->total_vram == 0x100000 ?
+ init->offset[cmode] + 4 - cmode :
+ init->offset[cmode]));
+ out_be32(&platinum_regs->reg[16].r, (unsigned) pinfo->frame_buffer_phys+init->fb_offset+0x10);
+ out_be32(&platinum_regs->reg[18].r, init->pitch[cmode]);
+ out_be32(&platinum_regs->reg[19].r, (pinfo->total_vram == 0x100000 ?
+ init->mode[cmode+1] :
+ init->mode[cmode]));
+ out_be32(&platinum_regs->reg[20].r, (pinfo->total_vram == 0x100000 ? 0x11 : 0x1011));
+ out_be32(&platinum_regs->reg[21].r, 0x100);
+ out_be32(&platinum_regs->reg[22].r, 1);
+ out_be32(&platinum_regs->reg[23].r, 1);
+ out_be32(&platinum_regs->reg[26].r, 0xc00);
+ out_be32(&platinum_regs->reg[27].r, 0x235);
+ /* out_be32(&platinum_regs->reg[27].r, 0x2aa); */
+
+ STORE_D2(0, (pinfo->total_vram == 0x100000 ?
+ init->dacula_ctrl[cmode] & 0xf :
+ init->dacula_ctrl[cmode]));
+ STORE_D2(1, 4);
+ STORE_D2(2, 0);
+
+ set_platinum_clock(pinfo);
+
+ out_be32(&platinum_regs->reg[24].r, 0); /* turn display on */
+}
+
+/*
+ * Set misc info vars for this driver
+ */
+static void __devinit platinum_init_info(struct fb_info *info, struct fb_info_platinum *pinfo)
+{
+ /* Fill fb_info */
+ info->fbops = &platinumfb_ops;
+ info->pseudo_palette = pinfo->pseudo_palette;
+ info->flags = FBINFO_DEFAULT;
+ info->screen_base = pinfo->frame_buffer + 0x20;
+
+ fb_alloc_cmap(&info->cmap, 256, 0);
+
+ /* Fill fix common fields */
+ strcpy(info->fix.id, "platinum");
+ info->fix.mmio_start = pinfo->platinum_regs_phys;
+ info->fix.mmio_len = 0x1000;
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.smem_start = pinfo->frame_buffer_phys + 0x20; /* will be updated later */
+ info->fix.smem_len = pinfo->total_vram - 0x20;
+ info->fix.ywrapstep = 0;
+ info->fix.xpanstep = 0;
+ info->fix.ypanstep = 0;
+ info->fix.type_aux = 0;
+ info->fix.accel = FB_ACCEL_NONE;
+}
+
+
+static int __devinit platinum_init_fb(struct fb_info *info)
+{
+ struct fb_info_platinum *pinfo = info->par;
+ struct fb_var_screeninfo var;
+ int sense, rc;
+
+ sense = read_platinum_sense(pinfo);
+ printk(KERN_INFO "platinumfb: Monitor sense value = 0x%x, ", sense);
+ if (default_vmode == VMODE_NVRAM) {
+#ifdef CONFIG_NVRAM
+ default_vmode = nvram_read_byte(NV_VMODE);
+ if (default_vmode <= 0 || default_vmode > VMODE_MAX ||
+ !platinum_reg_init[default_vmode-1])
+#endif
+ default_vmode = VMODE_CHOOSE;
+ }
+ if (default_vmode == VMODE_CHOOSE) {
+ default_vmode = mac_map_monitor_sense(sense);
+ }
+ if (default_vmode <= 0 || default_vmode > VMODE_MAX)
+ default_vmode = VMODE_640_480_60;
+#ifdef CONFIG_NVRAM
+ if (default_cmode == CMODE_NVRAM)
+ default_cmode = nvram_read_byte(NV_CMODE);
+#endif
+ if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
+ default_cmode = CMODE_8;
+ /*
+ * Reduce the pixel size if we don't have enough VRAM.
+ */
+ while(default_cmode > CMODE_8 &&
+ platinum_vram_reqd(default_vmode, default_cmode) > pinfo->total_vram)
+ default_cmode--;
+
+ printk("platinumfb: Using video mode %d and color mode %d.\n", default_vmode, default_cmode);
+
+ /* Setup default var */
+ if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
+ /* This shouldn't happen! */
+ printk("mac_vmode_to_var(%d, %d,) failed\n", default_vmode, default_cmode);
+try_again:
+ default_vmode = VMODE_640_480_60;
+ default_cmode = CMODE_8;
+ if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
+ printk(KERN_ERR "platinumfb: mac_vmode_to_var() failed\n");
+ return -ENXIO;
+ }
+ }
+
+ /* Initialize info structure */
+ platinum_init_info(info, pinfo);
+
+ /* Apply default var */
+ info->var = var;
+ var.activate = FB_ACTIVATE_NOW;
+ rc = fb_set_var(info, &var);
+ if (rc && (default_vmode != VMODE_640_480_60 || default_cmode != CMODE_8))
+ goto try_again;
+
+ /* Register with fbdev layer */
+ rc = register_framebuffer(info);
+ if (rc < 0)
+ return rc;
+
+ printk(KERN_INFO "fb%d: Apple Platinum frame buffer device\n", info->node);
+
+ return 0;
+}
+
+/*
+ * Get the monitor sense value.
+ * Note that this can be called before calibrate_delay,
+ * so we can't use udelay.
+ */
+static int read_platinum_sense(struct fb_info_platinum *info)
+{
+ volatile struct platinum_regs __iomem *platinum_regs = info->platinum_regs;
+ int sense;
+
+ out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
+ __delay(2000);
+ sense = (~in_be32(&platinum_regs->reg[23].r) & 7) << 8;
+
+ /* drive each sense line low in turn and collect the other 2 */
+ out_be32(&platinum_regs->reg[23].r, 3); /* drive A low */
+ __delay(2000);
+ sense |= (~in_be32(&platinum_regs->reg[23].r) & 3) << 4;
+ out_be32(&platinum_regs->reg[23].r, 5); /* drive B low */
+ __delay(2000);
+ sense |= (~in_be32(&platinum_regs->reg[23].r) & 4) << 1;
+ sense |= (~in_be32(&platinum_regs->reg[23].r) & 1) << 2;
+ out_be32(&platinum_regs->reg[23].r, 6); /* drive C low */
+ __delay(2000);
+ sense |= (~in_be32(&platinum_regs->reg[23].r) & 6) >> 1;
+
+ out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
+
+ return sense;
+}
+
+/*
+ * This routine takes a user-supplied var, and picks the best vmode/cmode from it.
+ * It also updates the var structure to the actual mode data obtained
+ */
+static int platinum_var_to_par(struct fb_var_screeninfo *var,
+ struct fb_info_platinum *pinfo,
+ int check_only)
+{
+ int vmode, cmode;
+
+ if (mac_var_to_vmode(var, &vmode, &cmode) != 0) {
+ printk(KERN_ERR "platinum_var_to_par: mac_var_to_vmode unsuccessful.\n");
+ printk(KERN_ERR "platinum_var_to_par: var->xres = %d\n", var->xres);
+ printk(KERN_ERR "platinum_var_to_par: var->yres = %d\n", var->yres);
+ printk(KERN_ERR "platinum_var_to_par: var->xres_virtual = %d\n", var->xres_virtual);
+ printk(KERN_ERR "platinum_var_to_par: var->yres_virtual = %d\n", var->yres_virtual);
+ printk(KERN_ERR "platinum_var_to_par: var->bits_per_pixel = %d\n", var->bits_per_pixel);
+ printk(KERN_ERR "platinum_var_to_par: var->pixclock = %d\n", var->pixclock);
+ printk(KERN_ERR "platinum_var_to_par: var->vmode = %d\n", var->vmode);
+ return -EINVAL;
+ }
+
+ if (!platinum_reg_init[vmode-1]) {
+ printk(KERN_ERR "platinum_var_to_par, vmode %d not valid.\n", vmode);
+ return -EINVAL;
+ }
+
+ if (platinum_vram_reqd(vmode, cmode) > pinfo->total_vram) {
+ printk(KERN_ERR "platinum_var_to_par, not enough ram for vmode %d, cmode %d.\n", vmode, cmode);
+ return -EINVAL;
+ }
+
+ if (mac_vmode_to_var(vmode, cmode, var))
+ return -EINVAL;
+
+ if (check_only)
+ return 0;
+
+ pinfo->vmode = vmode;
+ pinfo->cmode = cmode;
+ pinfo->xres = vmode_attrs[vmode-1].hres;
+ pinfo->yres = vmode_attrs[vmode-1].vres;
+ pinfo->xoffset = 0;
+ pinfo->yoffset = 0;
+ pinfo->vxres = pinfo->xres;
+ pinfo->vyres = pinfo->yres;
+
+ return 0;
+}
+
+
+/*
+ * Parse user specified options (`video=platinumfb:')
+ */
+static int __init platinumfb_setup(char *options)
+{
+ char *this_opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!strncmp(this_opt, "vmode:", 6)) {
+ int vmode = simple_strtoul(this_opt+6, NULL, 0);
+ if (vmode > 0 && vmode <= VMODE_MAX)
+ default_vmode = vmode;
+ } else if (!strncmp(this_opt, "cmode:", 6)) {
+ int depth = simple_strtoul(this_opt+6, NULL, 0);
+ switch (depth) {
+ case 0:
+ case 8:
+ default_cmode = CMODE_8;
+ break;
+ case 15:
+ case 16:
+ default_cmode = CMODE_16;
+ break;
+ case 24:
+ case 32:
+ default_cmode = CMODE_32;
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+#ifdef __powerpc__
+#define invalidate_cache(addr) \
+ asm volatile("eieio; dcbf 0,%1" \
+ : "=m" (*(addr)) : "r" (addr) : "memory");
+#else
+#define invalidate_cache(addr)
+#endif
+
+static int __devinit platinumfb_probe(struct platform_device* odev)
+{
+ struct device_node *dp = odev->dev.of_node;
+ struct fb_info *info;
+ struct fb_info_platinum *pinfo;
+ volatile __u8 *fbuffer;
+ int bank0, bank1, bank2, bank3, rc;
+
+ dev_info(&odev->dev, "Found Apple Platinum video hardware\n");
+
+ info = framebuffer_alloc(sizeof(*pinfo), &odev->dev);
+ if (info == NULL) {
+ dev_err(&odev->dev, "Failed to allocate fbdev !\n");
+ return -ENOMEM;
+ }
+ pinfo = info->par;
+
+ if (of_address_to_resource(dp, 0, &pinfo->rsrc_reg) ||
+ of_address_to_resource(dp, 1, &pinfo->rsrc_fb)) {
+ dev_err(&odev->dev, "Can't get resources\n");
+ framebuffer_release(info);
+ return -ENXIO;
+ }
+ dev_dbg(&odev->dev, " registers : 0x%llx...0x%llx\n",
+ (unsigned long long)pinfo->rsrc_reg.start,
+ (unsigned long long)pinfo->rsrc_reg.end);
+ dev_dbg(&odev->dev, " framebuffer: 0x%llx...0x%llx\n",
+ (unsigned long long)pinfo->rsrc_fb.start,
+ (unsigned long long)pinfo->rsrc_fb.end);
+
+ /* Do not try to request register space, they overlap with the
+ * northbridge and that can fail. Only request framebuffer
+ */
+ if (!request_mem_region(pinfo->rsrc_fb.start,
+ resource_size(&pinfo->rsrc_fb),
+ "platinumfb framebuffer")) {
+ printk(KERN_ERR "platinumfb: Can't request framebuffer !\n");
+ framebuffer_release(info);
+ return -ENXIO;
+ }
+
+ /* frame buffer - map only 4MB */
+ pinfo->frame_buffer_phys = pinfo->rsrc_fb.start;
+ pinfo->frame_buffer = __ioremap(pinfo->rsrc_fb.start, 0x400000,
+ _PAGE_WRITETHRU);
+ pinfo->base_frame_buffer = pinfo->frame_buffer;
+
+ /* registers */
+ pinfo->platinum_regs_phys = pinfo->rsrc_reg.start;
+ pinfo->platinum_regs = ioremap(pinfo->rsrc_reg.start, 0x1000);
+
+ pinfo->cmap_regs_phys = 0xf301b000; /* XXX not in prom? */
+ request_mem_region(pinfo->cmap_regs_phys, 0x1000, "platinumfb cmap");
+ pinfo->cmap_regs = ioremap(pinfo->cmap_regs_phys, 0x1000);
+
+ /* Grok total video ram */
+ out_be32(&pinfo->platinum_regs->reg[16].r, (unsigned)pinfo->frame_buffer_phys);
+ out_be32(&pinfo->platinum_regs->reg[20].r, 0x1011); /* select max vram */
+ out_be32(&pinfo->platinum_regs->reg[24].r, 0); /* switch in vram */
+
+ fbuffer = pinfo->base_frame_buffer;
+ fbuffer[0x100000] = 0x34;
+ fbuffer[0x100008] = 0x0;
+ invalidate_cache(&fbuffer[0x100000]);
+ fbuffer[0x200000] = 0x56;
+ fbuffer[0x200008] = 0x0;
+ invalidate_cache(&fbuffer[0x200000]);
+ fbuffer[0x300000] = 0x78;
+ fbuffer[0x300008] = 0x0;
+ invalidate_cache(&fbuffer[0x300000]);
+ bank0 = 1; /* builtin 1MB vram, always there */
+ bank1 = fbuffer[0x100000] == 0x34;
+ bank2 = fbuffer[0x200000] == 0x56;
+ bank3 = fbuffer[0x300000] == 0x78;
+ pinfo->total_vram = (bank0 + bank1 + bank2 + bank3) * 0x100000;
+ printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n",
+ (unsigned int) (pinfo->total_vram / 1024 / 1024),
+ bank3, bank2, bank1, bank0);
+
+ /*
+ * Try to determine whether we have an old or a new DACula.
+ */
+ out_8(&pinfo->cmap_regs->addr, 0x40);
+ pinfo->dactype = in_8(&pinfo->cmap_regs->d2);
+ switch (pinfo->dactype) {
+ case 0x3c:
+ pinfo->clktype = 1;
+ printk(KERN_INFO "platinumfb: DACula type 0x3c\n");
+ break;
+ case 0x84:
+ pinfo->clktype = 0;
+ printk(KERN_INFO "platinumfb: DACula type 0x84\n");
+ break;
+ default:
+ pinfo->clktype = 0;
+ printk(KERN_INFO "platinumfb: Unknown DACula type: %x\n", pinfo->dactype);
+ break;
+ }
+ dev_set_drvdata(&odev->dev, info);
+
+ rc = platinum_init_fb(info);
+ if (rc != 0) {
+ iounmap(pinfo->frame_buffer);
+ iounmap(pinfo->platinum_regs);
+ iounmap(pinfo->cmap_regs);
+ dev_set_drvdata(&odev->dev, NULL);
+ framebuffer_release(info);
+ }
+
+ return rc;
+}
+
+static int __devexit platinumfb_remove(struct platform_device* odev)
+{
+ struct fb_info *info = dev_get_drvdata(&odev->dev);
+ struct fb_info_platinum *pinfo = info->par;
+
+ unregister_framebuffer (info);
+
+ /* Unmap frame buffer and registers */
+ iounmap(pinfo->frame_buffer);
+ iounmap(pinfo->platinum_regs);
+ iounmap(pinfo->cmap_regs);
+
+ release_mem_region(pinfo->rsrc_fb.start,
+ resource_size(&pinfo->rsrc_fb));
+
+ release_mem_region(pinfo->cmap_regs_phys, 0x1000);
+
+ framebuffer_release(info);
+
+ return 0;
+}
+
+static struct of_device_id platinumfb_match[] =
+{
+ {
+ .name = "platinum",
+ },
+ {},
+};
+
+static struct platform_driver platinum_driver =
+{
+ .driver = {
+ .name = "platinumfb",
+ .owner = THIS_MODULE,
+ .of_match_table = platinumfb_match,
+ },
+ .probe = platinumfb_probe,
+ .remove = __devexit_p(platinumfb_remove),
+};
+
+static int __init platinumfb_init(void)
+{
+#ifndef MODULE
+ char *option = NULL;
+
+ if (fb_get_options("platinumfb", &option))
+ return -ENODEV;
+ platinumfb_setup(option);
+#endif
+ platform_driver_register(&platinum_driver);
+
+ return 0;
+}
+
+static void __exit platinumfb_exit(void)
+{
+ platform_driver_unregister(&platinum_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("framebuffer driver for Apple Platinum video");
+module_init(platinumfb_init);
+
+#ifdef MODULE
+module_exit(platinumfb_exit);
+#endif