ata: libata-scsi: fix ata_dsm_trim_pages() kernel-docgrafted

make htmldocs fails with:

  Documentation/driver-api/libata:604: ./drivers/ata/libata-scsi.c:2301:
  ERROR: Unexpected indentation. [docutils]

The Return: section of ata_dsm_trim_pages() ends its first sentence with
a colon and continues with an indented bullet list. reStructuredText
requires a blank line before an indented block, so docutils chokes on
the list.

Simply adding the missing blank line does not work either: Return: is a
kernel-doc "special section", which is terminated by the first blank
line, so the bullet list would end up in the Description section,
detached from the sentence introducing it.

Spell the two bounds out as prose instead, so that the Return: section
stays self-contained. Documentation-only change.

Fixes: e64e6b5dc867 ("ata: libata-scsi: scale DSM TRIM payload by MAX PAGES PER DSM COMMAND")
Reported-by: Thomas Huth <thuth@redhat.com>
Closes: https://lore.kernel.org/linux-ide/b0a0b8e8-cc4f-4c7b-8bc5-fee0712d405a@redhat.com/
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20260916130031.29990-2-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>

7 files changed, 2224 insertions, 0 deletions

diff --git a/drivers/video/fbdev/mb862xx/Makefile b/drivers/video/fbdev/mb862xx/Makefile
new file mode 100644
index 000000000..6496a661a
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the MB862xx framebuffer driver
+#
+
+obj-$(CONFIG_FB_MB862XX) += mb862xxfb.o
+
+mb862xxfb-y := mb862xxfbdrv.o mb862xxfb_accel.o
+mb862xxfb-$(CONFIG_FB_MB862XX_I2C) += mb862xx-i2c.o
diff --git a/drivers/video/fbdev/mb862xx/mb862xx-i2c.c b/drivers/video/fbdev/mb862xx/mb862xx-i2c.c
new file mode 100644
index 000000000..08b7f19a6
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xx-i2c.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Coral-P(A)/Lime I2C adapter driver
+ *
+ * (C) 2011 DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
+ */
+
+#include <linux/fb.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+
+#include "mb862xxfb.h"
+#include "mb862xx_reg.h"
+
+static int mb862xx_i2c_wait_event(struct i2c_adapter *adap)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+	u32 reg;
+
+	do {
+		udelay(10);
+		reg = inreg(i2c, GC_I2C_BCR);
+		if (reg & (I2C_INT | I2C_BER))
+			break;
+	} while (1);
+
+	return (reg & I2C_BER) ? 0 : 1;
+}
+
+static int mb862xx_i2c_do_address(struct i2c_adapter *adap, int addr)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+
+	outreg(i2c, GC_I2C_DAR, addr);
+	outreg(i2c, GC_I2C_CCR, I2C_CLOCK_AND_ENABLE);
+	outreg(i2c, GC_I2C_BCR, par->i2c_rs ? I2C_REPEATED_START : I2C_START);
+	if (!mb862xx_i2c_wait_event(adap))
+		return -EIO;
+	par->i2c_rs = !(inreg(i2c, GC_I2C_BSR) & I2C_LRB);
+	return par->i2c_rs;
+}
+
+static int mb862xx_i2c_write_byte(struct i2c_adapter *adap, u8 byte)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+
+	outreg(i2c, GC_I2C_DAR, byte);
+	outreg(i2c, GC_I2C_BCR, I2C_START);
+	if (!mb862xx_i2c_wait_event(adap))
+		return -EIO;
+	return !(inreg(i2c, GC_I2C_BSR) & I2C_LRB);
+}
+
+static int mb862xx_i2c_read_byte(struct i2c_adapter *adap, u8 *byte, int last)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+
+	outreg(i2c, GC_I2C_BCR, I2C_START | (last ? 0 : I2C_ACK));
+	if (!mb862xx_i2c_wait_event(adap))
+		return 0;
+	*byte = inreg(i2c, GC_I2C_DAR);
+	return 1;
+}
+
+static void mb862xx_i2c_stop(struct i2c_adapter *adap)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+
+	outreg(i2c, GC_I2C_BCR, I2C_STOP);
+	outreg(i2c, GC_I2C_CCR, I2C_DISABLE);
+	par->i2c_rs = 0;
+}
+
+static int mb862xx_i2c_read(struct i2c_adapter *adap, struct i2c_msg *m)
+{
+	int i, ret = 0;
+	int last = m->len - 1;
+
+	for (i = 0; i < m->len; i++) {
+		if (!mb862xx_i2c_read_byte(adap, &m->buf[i], i == last)) {
+			ret = -EIO;
+			break;
+		}
+	}
+	return ret;
+}
+
+static int mb862xx_i2c_write(struct i2c_adapter *adap, struct i2c_msg *m)
+{
+	int i, ret = 0;
+
+	for (i = 0; i < m->len; i++) {
+		if (!mb862xx_i2c_write_byte(adap, m->buf[i])) {
+			ret = -EIO;
+			break;
+		}
+	}
+	return ret;
+}
+
+static int mb862xx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
+			int num)
+{
+	struct mb862xxfb_par *par = adap->algo_data;
+	struct i2c_msg *m;
+	int addr;
+	int i = 0, err = 0;
+
+	dev_dbg(par->dev, "%s: %d msgs\n", __func__, num);
+
+	for (i = 0; i < num; i++) {
+		m = &msgs[i];
+		if (!m->len) {
+			dev_dbg(par->dev, "%s: null msgs\n", __func__);
+			continue;
+		}
+		addr = m->addr;
+		if (m->flags & I2C_M_RD)
+			addr |= 1;
+
+		err = mb862xx_i2c_do_address(adap, addr);
+		if (err < 0)
+			break;
+		if (m->flags & I2C_M_RD)
+			err = mb862xx_i2c_read(adap, m);
+		else
+			err = mb862xx_i2c_write(adap, m);
+	}
+
+	if (i)
+		mb862xx_i2c_stop(adap);
+
+	return (err < 0) ? err : i;
+}
+
+static u32 mb862xx_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_SMBUS_BYTE_DATA;
+}
+
+static const struct i2c_algorithm mb862xx_algo = {
+	.master_xfer	= mb862xx_xfer,
+	.functionality	= mb862xx_func,
+};
+
+static struct i2c_adapter mb862xx_i2c_adapter = {
+	.name		= "MB862xx I2C adapter",
+	.algo		= &mb862xx_algo,
+	.owner		= THIS_MODULE,
+};
+
+int mb862xx_i2c_init(struct mb862xxfb_par *par)
+{
+	mb862xx_i2c_adapter.algo_data = par;
+	par->adap = &mb862xx_i2c_adapter;
+
+	return i2c_add_adapter(par->adap);
+}
+
+void mb862xx_i2c_exit(struct mb862xxfb_par *par)
+{
+	if (par->adap) {
+		i2c_del_adapter(par->adap);
+		par->adap = NULL;
+	}
+}
diff --git a/drivers/video/fbdev/mb862xx/mb862xx_reg.h b/drivers/video/fbdev/mb862xx/mb862xx_reg.h
new file mode 100644
index 000000000..e6d051395
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xx_reg.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Fujitsu MB862xx Graphics Controller Registers/Bits
+ */
+
+#ifndef _MB862XX_REG_H
+#define _MB862XX_REG_H
+
+#define MB862XX_MMIO_BASE	0x01fc0000
+#define MB862XX_MMIO_HIGH_BASE	0x03fc0000
+#define MB862XX_I2C_BASE	0x0000c000
+#define MB862XX_DISP_BASE	0x00010000
+#define MB862XX_CAP_BASE	0x00018000
+#define MB862XX_DRAW_BASE	0x00030000
+#define MB862XX_GEO_BASE	0x00038000
+#define MB862XX_PIO_BASE	0x00038000
+#define MB862XX_MMIO_SIZE	0x40000
+
+/* Host interface/pio registers */
+#define GC_IST			0x00000020
+#define GC_IMASK		0x00000024
+#define GC_SRST			0x0000002c
+#define GC_CCF			0x00000038
+#define GC_RSW			0x0000005c
+#define GC_CID			0x000000f0
+#define GC_REVISION		0x00000084
+
+#define GC_CCF_CGE_100		0x00000000
+#define GC_CCF_CGE_133		0x00040000
+#define GC_CCF_CGE_166		0x00080000
+#define GC_CCF_COT_100		0x00000000
+#define GC_CCF_COT_133		0x00010000
+#define GC_CID_CNAME_MSK	0x0000ff00
+#define GC_CID_VERSION_MSK	0x000000ff
+
+/* define enabled interrupts hereby */
+#define GC_INT_EN		0x00000000
+
+/* Memory interface mode register */
+#define GC_MMR			0x0000fffc
+
+/* Display Controller registers */
+#define GC_DCM0			0x00000000
+#define GC_HTP			0x00000004
+#define GC_HDB_HDP		0x00000008
+#define GC_VSW_HSW_HSP		0x0000000c
+#define GC_VTR			0x00000010
+#define GC_VDP_VSP		0x00000014
+#define GC_WY_WX		0x00000018
+#define GC_WH_WW		0x0000001c
+#define GC_L0M			0x00000020
+#define GC_L0OA0		0x00000024
+#define GC_L0DA0		0x00000028
+#define GC_L0DY_L0DX		0x0000002c
+#define GC_L1M			0x00000030
+#define GC_L1DA			0x00000034
+#define GC_DCM1			0x00000100
+#define GC_L0EM			0x00000110
+#define GC_L0WY_L0WX		0x00000114
+#define GC_L0WH_L0WW		0x00000118
+#define GC_L1EM			0x00000120
+#define GC_L1WY_L1WX		0x00000124
+#define GC_L1WH_L1WW		0x00000128
+#define GC_DLS			0x00000180
+#define GC_DCM2			0x00000104
+#define GC_DCM3			0x00000108
+#define GC_CPM_CUTC		0x000000a0
+#define GC_CUOA0		0x000000a4
+#define GC_CUY0_CUX0		0x000000a8
+#define GC_CUOA1		0x000000ac
+#define GC_CUY1_CUX1		0x000000b0
+#define GC_L0PAL0		0x00000400
+
+#define GC_CPM_CEN0		0x00100000
+#define GC_CPM_CEN1		0x00200000
+#define GC_DCM1_DEN		0x80000000
+#define GC_DCM1_L1E		0x00020000
+#define GC_L1M_16		0x80000000
+#define GC_L1M_YC		0x40000000
+#define GC_L1M_CS		0x20000000
+
+#define GC_DCM01_ESY		0x00000004
+#define GC_DCM01_SC		0x00003f00
+#define GC_DCM01_RESV		0x00004000
+#define GC_DCM01_CKS		0x00008000
+#define GC_DCM01_L0E		0x00010000
+#define GC_DCM01_DEN		0x80000000
+#define GC_L0M_L0C_8		0x00000000
+#define GC_L0M_L0C_16		0x80000000
+#define GC_L0EM_L0EC_24		0x40000000
+#define GC_L0M_L0W_UNIT		64
+#define GC_L1EM_DM		0x02000000
+
+#define GC_DISP_REFCLK_400	400
+
+/* I2C */
+#define GC_I2C_BSR		0x00000000	/* BSR */
+#define GC_I2C_BCR		0x00000004	/* BCR */
+#define GC_I2C_CCR		0x00000008	/* CCR */
+#define GC_I2C_ADR		0x0000000C	/* ADR */
+#define GC_I2C_DAR		0x00000010	/* DAR */
+
+#define I2C_DISABLE		0x00000000
+#define I2C_STOP		0x00000000
+#define I2C_START		0x00000010
+#define I2C_REPEATED_START	0x00000030
+#define I2C_CLOCK_AND_ENABLE	0x0000003f
+#define I2C_READY		0x01
+#define I2C_INT			0x01
+#define I2C_INTE		0x02
+#define I2C_ACK			0x08
+#define I2C_BER			0x80
+#define I2C_BEIE		0x40
+#define I2C_TRX			0x80
+#define I2C_LRB			0x10
+
+/* Capture registers and bits */
+#define GC_CAP_VCM		0x00000000
+#define GC_CAP_CSC		0x00000004
+#define GC_CAP_VCS		0x00000008
+#define GC_CAP_CBM		0x00000010
+#define GC_CAP_CBOA		0x00000014
+#define GC_CAP_CBLA		0x00000018
+#define GC_CAP_IMG_START	0x0000001C
+#define GC_CAP_IMG_END		0x00000020
+#define GC_CAP_CMSS		0x00000048
+#define GC_CAP_CMDS		0x0000004C
+
+#define GC_VCM_VIE		0x80000000
+#define GC_VCM_CM		0x03000000
+#define GC_VCM_VS_PAL		0x00000002
+#define GC_CBM_OO		0x80000000
+#define GC_CBM_HRV		0x00000010
+#define GC_CBM_CBST		0x00000001
+
+/* Carmine specific */
+#define MB86297_DRAW_BASE		0x00020000
+#define MB86297_DISP0_BASE		0x00100000
+#define MB86297_DISP1_BASE		0x00140000
+#define MB86297_WRBACK_BASE		0x00180000
+#define MB86297_CAP0_BASE		0x00200000
+#define MB86297_CAP1_BASE		0x00280000
+#define MB86297_DRAMCTRL_BASE		0x00300000
+#define MB86297_CTRL_BASE		0x00400000
+#define MB86297_I2C_BASE		0x00500000
+
+#define GC_CTRL_STATUS			0x00000000
+#define GC_CTRL_INT_MASK		0x00000004
+#define GC_CTRL_CLK_ENABLE		0x0000000c
+#define GC_CTRL_SOFT_RST		0x00000010
+
+#define GC_CTRL_CLK_EN_DRAM		0x00000001
+#define GC_CTRL_CLK_EN_2D3D		0x00000002
+#define GC_CTRL_CLK_EN_DISP0		0x00000020
+#define GC_CTRL_CLK_EN_DISP1		0x00000040
+
+#define GC_2D3D_REV			0x000004b4
+#define GC_RE_REVISION			0x24240200
+
+/* define enabled interrupts hereby */
+#define GC_CARMINE_INT_EN		0x00000004
+
+/* DRAM controller */
+#define GC_DCTL_MODE_ADD		0x00000000
+#define GC_DCTL_SETTIME1_EMODE		0x00000004
+#define GC_DCTL_REFRESH_SETTIME2	0x00000008
+#define GC_DCTL_RSV0_STATES		0x0000000C
+#define GC_DCTL_RSV2_RSV1		0x00000010
+#define GC_DCTL_DDRIF2_DDRIF1		0x00000014
+#define GC_DCTL_IOCONT1_IOCONT0		0x00000024
+
+#define GC_DCTL_STATES_MSK		0x0000000f
+#define GC_DCTL_INIT_WAIT_CNT		3000
+#define GC_DCTL_INIT_WAIT_INTERVAL	1
+
+/* DRAM ctrl values for Carmine PCI Eval. board */
+#define GC_EVB_DCTL_MODE_ADD		0x012105c3
+#define GC_EVB_DCTL_MODE_ADD_AFT_RST	0x002105c3
+#define GC_EVB_DCTL_SETTIME1_EMODE	0x47498000
+#define GC_EVB_DCTL_REFRESH_SETTIME2	0x00422a22
+#define GC_EVB_DCTL_RSV0_STATES		0x00200003
+#define GC_EVB_DCTL_RSV0_STATES_AFT_RST	0x00200002
+#define GC_EVB_DCTL_RSV2_RSV1		0x0000000f
+#define GC_EVB_DCTL_DDRIF2_DDRIF1	0x00556646
+#define GC_EVB_DCTL_IOCONT1_IOCONT0	0x05550555
+
+#define GC_DISP_REFCLK_533		533
+
+#endif
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb.h b/drivers/video/fbdev/mb862xx/mb862xxfb.h
new file mode 100644
index 000000000..52a77ea4e
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb.h
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __MB862XX_H__
+#define __MB862XX_H__
+
+struct mb862xx_l1_cfg {
+	unsigned short sx;
+	unsigned short sy;
+	unsigned short sw;
+	unsigned short sh;
+	unsigned short dx;
+	unsigned short dy;
+	unsigned short dw;
+	unsigned short dh;
+	int mirror;
+};
+
+#define MB862XX_BASE		'M'
+#define MB862XX_L1_GET_CFG	_IOR(MB862XX_BASE, 0, struct mb862xx_l1_cfg*)
+#define MB862XX_L1_SET_CFG	_IOW(MB862XX_BASE, 1, struct mb862xx_l1_cfg*)
+#define MB862XX_L1_ENABLE	_IOW(MB862XX_BASE, 2, int)
+#define MB862XX_L1_CAP_CTL	_IOW(MB862XX_BASE, 3, int)
+
+#ifdef __KERNEL__
+
+#define PCI_VENDOR_ID_FUJITSU_LIMITED	0x10cf
+#define PCI_DEVICE_ID_FUJITSU_CORALP	0x2019
+#define PCI_DEVICE_ID_FUJITSU_CORALPA	0x201e
+#define PCI_DEVICE_ID_FUJITSU_CARMINE	0x202b
+
+#define GC_MMR_CORALP_EVB_VAL		0x11d7fa13
+
+enum gdctype {
+	BT_NONE,
+	BT_LIME,
+	BT_MINT,
+	BT_CORAL,
+	BT_CORALP,
+	BT_CARMINE,
+};
+
+struct mb862xx_gc_mode {
+	struct fb_videomode	def_mode;	/* mode of connected display */
+	unsigned int		def_bpp;	/* default depth */
+	unsigned long		max_vram;	/* connected SDRAM size */
+	unsigned long		ccf;		/* gdc clk */
+	unsigned long		mmr;		/* memory mode for SDRAM */
+};
+
+/* private data */
+struct mb862xxfb_par {
+	struct fb_info		*info;		/* fb info head */
+	struct device		*dev;
+	struct pci_dev		*pdev;
+	struct resource		*res;		/* framebuffer/mmio resource */
+
+	resource_size_t		fb_base_phys;	/* fb base, 36-bit PPC440EPx */
+	resource_size_t		mmio_base_phys;	/* io base addr */
+	void __iomem		*fb_base;	/* remapped framebuffer */
+	void __iomem		*mmio_base;	/* remapped registers */
+	size_t			mapped_vram;	/* length of remapped vram */
+	size_t			mmio_len;	/* length of register region */
+	unsigned long		cap_buf;	/* capture buffers offset */
+	size_t			cap_len;	/* length of capture buffers */
+
+	void __iomem		*host;		/* relocatable reg. bases */
+	void __iomem		*i2c;
+	void __iomem		*disp;
+	void __iomem		*disp1;
+	void __iomem		*cap;
+	void __iomem		*cap1;
+	void __iomem		*draw;
+	void __iomem		*geo;
+	void __iomem		*pio;
+	void __iomem		*ctrl;
+	void __iomem		*dram_ctrl;
+	void __iomem		*wrback;
+
+	unsigned int		irq;
+	unsigned int		type;		/* GDC type */
+	unsigned int		refclk;		/* disp. reference clock */
+	struct mb862xx_gc_mode	*gc_mode;	/* GDC mode init data */
+	int			pre_init;	/* don't init display if 1 */
+	struct i2c_adapter	*adap;		/* GDC I2C bus adapter */
+	int			i2c_rs;
+
+	struct mb862xx_l1_cfg	l1_cfg;
+	int			l1_stride;
+
+	u32			pseudo_palette[16];
+};
+
+extern void mb862xxfb_init_accel(struct fb_info *info, struct fb_ops *fbops, int xres);
+#ifdef CONFIG_FB_MB862XX_I2C
+extern int mb862xx_i2c_init(struct mb862xxfb_par *par);
+extern void mb862xx_i2c_exit(struct mb862xxfb_par *par);
+#else
+static inline int mb862xx_i2c_init(struct mb862xxfb_par *par) { return 0; }
+static inline void mb862xx_i2c_exit(struct mb862xxfb_par *par) { }
+#endif
+
+#if defined(CONFIG_FB_MB862XX_LIME) && defined(CONFIG_FB_MB862XX_PCI_GDC)
+#error	"Select Lime GDC or CoralP/Carmine support, but not both together"
+#endif
+#if defined(CONFIG_FB_MB862XX_LIME)
+#define gdc_read	__raw_readl
+#define gdc_write	__raw_writel
+#else
+#define gdc_read	readl
+#define gdc_write	writel
+#endif
+
+#define inreg(type, off)	\
+	gdc_read((par->type + (off)))
+
+#define outreg(type, off, val)	\
+	gdc_write((val), (par->type + (off)))
+
+#define pack(a, b)	(((a) << 16) | (b))
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
new file mode 100644
index 000000000..c35a7479f
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * drivers/mb862xx/mb862xxfb_accel.c
+ *
+ * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver acceleration support
+ *
+ * (C) 2007 Alexander Shishkin <virtuoso@slind.org>
+ * (C) 2009 Valentin Sitdikov <v.sitdikov@gmail.com>
+ * (C) 2009 Siemens AG
+ */
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+
+#include "mb862xxfb.h"
+#include "mb862xx_reg.h"
+#include "mb862xxfb_accel.h"
+
+static void mb862xxfb_write_fifo(u32 count, u32 *data, struct fb_info *info)
+{
+	struct mb862xxfb_par *par = info->par;
+	static u32 free;
+
+	u32 total = 0;
+	while (total < count) {
+		if (free) {
+			outreg(geo, GDC_GEO_REG_INPUT_FIFO, data[total]);
+			total++;
+			free--;
+		} else {
+			free = (u32) inreg(draw, GDC_REG_FIFO_COUNT);
+		}
+	}
+}
+
+static void mb86290fb_copyarea(struct fb_info *info,
+			       const struct fb_copyarea *area)
+{
+	__u32 cmd[6];
+
+	cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+	/* Set raster operation */
+	cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+	cmd[2] = GDC_TYPE_BLTCOPYP << 24;
+
+	if (area->sx >= area->dx && area->sy >= area->dy)
+		cmd[2] |= GDC_CMD_BLTCOPY_TOP_LEFT << 16;
+	else if (area->sx >= area->dx && area->sy <= area->dy)
+		cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_LEFT << 16;
+	else if (area->sx <= area->dx && area->sy >= area->dy)
+		cmd[2] |= GDC_CMD_BLTCOPY_TOP_RIGHT << 16;
+	else
+		cmd[2] |= GDC_CMD_BLTCOPY_BOTTOM_RIGHT << 16;
+
+	cmd[3] = (area->sy << 16) | area->sx;
+	cmd[4] = (area->dy << 16) | area->dx;
+	cmd[5] = (area->height << 16) | area->width;
+	mb862xxfb_write_fifo(6, cmd, info);
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 1bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit1(u32 *cmd, u16 step, u16 dx, u16 dy,
+				 u16 width, u16 height, u32 fgcolor,
+				 u32 bgcolor, const struct fb_image *image,
+				 struct fb_info *info)
+{
+	int i;
+	unsigned const char *line;
+	u16 bytes;
+
+	/* set colors and raster operation regs */
+	cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+	/* Set raster operation */
+	cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+	cmd[2] =
+	    (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
+	cmd[3] = fgcolor;
+	cmd[4] =
+	    (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_BACK_COLOR << 16);
+	cmd[5] = bgcolor;
+
+	i = 0;
+	line = image->data;
+	bytes = (image->width + 7) >> 3;
+
+	/* and the image */
+	cmd[6] = (GDC_TYPE_DRAWBITMAPP << 24) |
+	    (GDC_CMD_BITMAP << 16) | (2 + (step * height));
+	cmd[7] = (dy << 16) | dx;
+	cmd[8] = (height << 16) | width;
+
+	while (i < height) {
+		memcpy(&cmd[9 + i * step], line, step << 2);
+#ifdef __LITTLE_ENDIAN
+		{
+			int k = 0;
+			for (k = 0; k < step; k++)
+				cmd[9 + i * step + k] =
+				    cpu_to_be32(cmd[9 + i * step + k]);
+		}
+#endif
+		line += bytes;
+		i++;
+	}
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 8bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit8(u32 *cmd, u16 step, u16 dx, u16 dy,
+				 u16 width, u16 height, u32 fgcolor,
+				 u32 bgcolor, const struct fb_image *image,
+				 struct fb_info *info)
+{
+	int i, j;
+	unsigned const char *line, *ptr;
+	u16 bytes;
+
+	cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
+	    (GDC_CMD_BLT_DRAW << 16) | (2 + (height * step));
+	cmd[1] = (dy << 16) | dx;
+	cmd[2] = (height << 16) | width;
+
+	i = 0;
+	line = image->data;
+	bytes = image->width;
+
+	while (i < height) {
+		ptr = line;
+		for (j = 0; j < step; j++) {
+			cmd[3 + i * step + j] =
+			    (((u32 *) (info->pseudo_palette))[*ptr]) & 0xffff;
+			ptr++;
+			cmd[3 + i * step + j] |=
+			    ((((u32 *) (info->
+					pseudo_palette))[*ptr]) & 0xffff) << 16;
+			ptr++;
+		}
+
+		line += bytes;
+		i++;
+	}
+}
+
+/*
+ * Fill in the cmd array /GDC FIFO commands/ to draw a 16bit image.
+ * Make sure cmd has enough room!
+ */
+static void mb86290fb_imageblit16(u32 *cmd, u16 step, u16 dx, u16 dy,
+				  u16 width, u16 height, u32 fgcolor,
+				  u32 bgcolor, const struct fb_image *image,
+				  struct fb_info *info)
+{
+	int i;
+	unsigned const char *line;
+	u16 bytes;
+
+	i = 0;
+	line = image->data;
+	bytes = image->width << 1;
+
+	cmd[0] = (GDC_TYPE_DRAWBITMAPP << 24) |
+	    (GDC_CMD_BLT_DRAW << 16) | (2 + step * height);
+	cmd[1] = (dy << 16) | dx;
+	cmd[2] = (height << 16) | width;
+
+	while (i < height) {
+		memcpy(&cmd[3 + i * step], line, step);
+		line += bytes;
+		i++;
+	}
+}
+
+static void mb86290fb_imageblit(struct fb_info *info,
+				const struct fb_image *image)
+{
+	u32 *cmd = NULL;
+	void (*cmdfn) (u32 *, u16, u16, u16, u16, u16, u32, u32,
+		       const struct fb_image *, struct fb_info *) = NULL;
+	u32 cmdlen;
+	u32 fgcolor = 0, bgcolor = 0;
+	u16 step;
+
+	u16 width = image->width, height = image->height;
+	u16 dx = image->dx, dy = image->dy;
+	int x2, y2, vxres, vyres;
+
+	x2 = image->dx + image->width;
+	y2 = image->dy + image->height;
+	vxres = info->var.xres_virtual;
+	vyres = info->var.yres_virtual;
+	x2 = min(x2, vxres);
+	y2 = min(y2, vyres);
+	width = x2 - dx;
+	height = y2 - dy;
+
+	switch (image->depth) {
+	case 1:
+		step = (width + 31) >> 5;
+		cmdlen = 9 + height * step;
+		cmdfn = mb86290fb_imageblit1;
+		if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+		    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+			fgcolor =
+			    ((u32 *) (info->pseudo_palette))[image->fg_color];
+			bgcolor =
+			    ((u32 *) (info->pseudo_palette))[image->bg_color];
+		} else {
+			fgcolor = image->fg_color;
+			bgcolor = image->bg_color;
+		}
+
+		break;
+
+	case 8:
+		step = (width + 1) >> 1;
+		cmdlen = 3 + height * step;
+		cmdfn = mb86290fb_imageblit8;
+		break;
+
+	case 16:
+		step = (width + 1) >> 1;
+		cmdlen = 3 + height * step;
+		cmdfn = mb86290fb_imageblit16;
+		break;
+
+	default:
+		cfb_imageblit(info, image);
+		return;
+	}
+
+	cmd = kmalloc_array(cmdlen, 4, GFP_DMA);
+	if (!cmd)
+		return cfb_imageblit(info, image);
+	cmdfn(cmd, step, dx, dy, width, height, fgcolor, bgcolor, image, info);
+	mb862xxfb_write_fifo(cmdlen, cmd, info);
+	kfree(cmd);
+}
+
+static void mb86290fb_fillrect(struct fb_info *info,
+			       const struct fb_fillrect *rect)
+{
+
+	u32 x2, y2, vxres, vyres, height, width, fg;
+	u32 cmd[7];
+
+	vxres = info->var.xres_virtual;
+	vyres = info->var.yres_virtual;
+
+	if (!rect->width || !rect->height || rect->dx > vxres
+	    || rect->dy > vyres)
+		return;
+
+	/* We could use hardware clipping but on many cards you get around
+	 * hardware clipping by writing to framebuffer directly. */
+	x2 = rect->dx + rect->width;
+	y2 = rect->dy + rect->height;
+	x2 = min(x2, vxres);
+	y2 = min(y2, vyres);
+	width = x2 - rect->dx;
+	height = y2 - rect->dy;
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+		fg = ((u32 *) (info->pseudo_palette))[rect->color];
+	else
+		fg = rect->color;
+
+	switch (rect->rop) {
+
+	case ROP_XOR:
+		/* Set raster operation */
+		cmd[1] = (2 << 7) | (GDC_ROP_XOR << 9);
+		break;
+
+	case ROP_COPY:
+		/* Set raster operation */
+		cmd[1] = (2 << 7) | (GDC_ROP_COPY << 9);
+		break;
+
+	}
+
+	cmd[0] = (GDC_TYPE_SETREGISTER << 24) | (1 << 16) | GDC_REG_MODE_BITMAP;
+	/* cmd[1] set earlier */
+	cmd[2] =
+	    (GDC_TYPE_SETCOLORREGISTER << 24) | (GDC_CMD_BODY_FORE_COLOR << 16);
+	cmd[3] = fg;
+	cmd[4] = (GDC_TYPE_DRAWRECTP << 24) | (GDC_CMD_BLT_FILL << 16);
+	cmd[5] = (rect->dy << 16) | (rect->dx);
+	cmd[6] = (height << 16) | width;
+
+	mb862xxfb_write_fifo(7, cmd, info);
+}
+
+void mb862xxfb_init_accel(struct fb_info *info, struct fb_ops *fbops, int xres)
+{
+	struct mb862xxfb_par *par = info->par;
+
+	if (info->var.bits_per_pixel == 32) {
+		fbops->fb_fillrect = cfb_fillrect;
+		fbops->fb_copyarea = cfb_copyarea;
+		fbops->fb_imageblit = cfb_imageblit;
+	} else {
+		outreg(disp, GC_L0EM, 3);
+		fbops->fb_fillrect = mb86290fb_fillrect;
+		fbops->fb_copyarea = mb86290fb_copyarea;
+		fbops->fb_imageblit = mb86290fb_imageblit;
+	}
+	outreg(draw, GDC_REG_DRAW_BASE, 0);
+	outreg(draw, GDC_REG_MODE_MISC, 0x8000);
+	outreg(draw, GDC_REG_X_RESOLUTION, xres);
+
+	info->flags |=
+	    FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
+	    FBINFO_HWACCEL_IMAGEBLIT;
+	info->fix.accel = 0xff;	/*FIXME: add right define */
+}
+
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h
new file mode 100644
index 000000000..3a2549f9a
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h
@@ -0,0 +1,204 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __MB826XXFB_ACCEL_H__
+#define __MB826XXFB_ACCEL_H__
+
+/* registers */
+#define GDC_GEO_REG_INPUT_FIFO 0x00000400L
+
+/* Special Registers */
+#define GDC_REG_CTRL                0x00000400L
+#define GDC_REG_FIFO_STATUS         0x00000404L
+#define GDC_REG_FIFO_COUNT          0x00000408L
+#define GDC_REG_SETUP_STATUS        0x0000040CL
+#define GDC_REG_DDA_STATUS          0x00000410L
+#define GDC_REG_ENGINE_STATUS       0x00000414L
+#define GDC_REG_ERROR_STATUS        0x00000418L
+#define GDC_REG_MODE_MISC           0x00000420L	/* MDR0 */
+#define GDC_REG_MODE_LINE           0x00000424L	/* MDR1 */
+#define GDC_REG_MODE_POLYGON        0x00000428L	/* MDR2 */
+#define GDC_REG_MODE_TEXTURE        0x0000042CL	/* MDR3 */
+#define GDC_REG_MODE_BITMAP         0x00000430L	/* MDR4 */
+#define GDC_REG_MODE_EXTENSION      0x0000043CL	/* MDR7 */
+
+/* Configuration Registers */
+#define GDC_REG_DRAW_BASE           0x00000440L
+#define GDC_REG_X_RESOLUTION        0x00000444L
+#define GDC_REG_Z_BASE              0x00000448L
+#define GDC_REG_TEXTURE_BASE        0x0000044CL
+#define GDC_REG_POLYGON_FLAG_BASE   0x00000450L
+#define GDC_REG_CLIP_XMIN           0x00000454L
+#define GDC_REG_CLIP_XMAX           0x00000458L
+#define GDC_REG_CLIP_YMIN           0x0000045CL
+#define GDC_REG_CLIP_YMAX           0x00000460L
+#define GDC_REG_TEXURE_SIZE         0x00000464L
+#define GDC_REG_TILE_SIZE           0x00000468L
+#define GDC_REG_TEX_BUF_OFFSET      0x0000046CL
+
+/* for MB86293 or later */
+#define GDC_REG_ALPHA_MAP_BASE      0x00000474L	/* ABR */
+
+/* Constant Registers */
+#define GDC_REG_FOREGROUND_COLOR    0x00000480L
+#define GDC_REG_BACKGROUND_COLOR    0x00000484L
+#define GDC_REG_ALPHA               0x00000488L
+#define GDC_REG_LINE_PATTERN        0x0000048CL
+#define GDC_REG_TEX_BORDER_COLOR    0x00000494L
+#define GDC_REG_LINE_PATTERN_OFFSET 0x000003E0L
+
+/* Coomand Code */
+#define GDC_CMD_PIXEL                   0x00000000L
+#define GDC_CMD_PIXEL_Z                 0x00000001L
+
+#define GDC_CMD_X_VECTOR                0x00000020L
+#define GDC_CMD_Y_VECTOR                0x00000021L
+#define GDC_CMD_X_VECTOR_NOEND          0x00000022L
+#define GDC_CMD_Y_VECTOR_NOEND          0x00000023L
+#define GDC_CMD_X_VECTOR_BLPO           0x00000024L
+#define GDC_CMD_Y_VECTOR_BLPO           0x00000025L
+#define GDC_CMD_X_VECTOR_NOEND_BLPO     0x00000026L
+#define GDC_CMD_Y_VECTOR_NOEND_BLPO     0x00000027L
+#define GDC_CMD_AA_X_VECTOR             0x00000028L
+#define GDC_CMD_AA_Y_VECTOR             0x00000029L
+#define GDC_CMD_AA_X_VECTOR_NOEND       0x0000002AL
+#define GDC_CMD_AA_Y_VECTOR_NOEND       0x0000002BL
+#define GDC_CMD_AA_X_VECTOR_BLPO        0x0000002CL
+#define GDC_CMD_AA_Y_VECTOR_BLPO        0x0000002DL
+#define GDC_CMD_AA_X_VECTOR_NOEND_BLPO  0x0000002EL
+#define GDC_CMD_AA_Y_VECTOR_NOEND_BLPO  0x0000002FL
+
+#define GDC_CMD_0_VECTOR                0x00000030L
+#define GDC_CMD_1_VECTOR                0x00000031L
+#define GDC_CMD_0_VECTOR_NOEND          0x00000032L
+#define GDC_CMD_1_VECTOR_NOEND          0x00000033L
+#define GDC_CMD_0_VECTOR_BLPO           0x00000034L
+#define GDC_CMD_1_VECTOR_BLPO           0x00000035L
+#define GDC_CMD_0_VECTOR_NOEND_BLPO     0x00000036L
+#define GDC_CMD_1_VECTOR_NOEND_BLPO     0x00000037L
+#define GDC_CMD_AA_0_VECTOR             0x00000038L
+#define GDC_CMD_AA_1_VECTOR             0x00000039L
+#define GDC_CMD_AA_0_VECTOR_NOEND       0x0000003AL
+#define GDC_CMD_AA_1_VECTOR_NOEND       0x0000003BL
+#define GDC_CMD_AA_0_VECTOR_BLPO        0x0000003CL
+#define GDC_CMD_AA_1_VECTOR_BLPO        0x0000003DL
+#define GDC_CMD_AA_0_VECTOR_NOEND_BLPO  0x0000003EL
+#define GDC_CMD_AA_1_VECTOR_NOEND_BLPO  0x0000003FL
+
+#define GDC_CMD_BLT_FILL                0x00000041L
+#define GDC_CMD_BLT_DRAW                0x00000042L
+#define GDC_CMD_BITMAP                  0x00000043L
+#define GDC_CMD_BLTCOPY_TOP_LEFT        0x00000044L
+#define GDC_CMD_BLTCOPY_TOP_RIGHT       0x00000045L
+#define GDC_CMD_BLTCOPY_BOTTOM_LEFT     0x00000046L
+#define GDC_CMD_BLTCOPY_BOTTOM_RIGHT    0x00000047L
+#define GDC_CMD_LOAD_TEXTURE            0x00000048L
+#define GDC_CMD_LOAD_TILE               0x00000049L
+
+#define GDC_CMD_TRAP_RIGHT              0x00000060L
+#define GDC_CMD_TRAP_LEFT               0x00000061L
+#define GDC_CMD_TRIANGLE_FAN            0x00000062L
+#define GDC_CMD_FLAG_TRIANGLE_FAN       0x00000063L
+
+#define GDC_CMD_FLUSH_FB                0x000000C1L
+#define GDC_CMD_FLUSH_Z                 0x000000C2L
+
+#define GDC_CMD_POLYGON_BEGIN           0x000000E0L
+#define GDC_CMD_POLYGON_END             0x000000E1L
+#define GDC_CMD_CLEAR_POLY_FLAG         0x000000E2L
+#define GDC_CMD_NORMAL                  0x000000FFL
+
+#define GDC_CMD_VECTOR_BLPO_FLAG        0x00040000L
+#define GDC_CMD_FAST_VECTOR_BLPO_FLAG   0x00000004L
+
+/* for MB86293 or later */
+#define GDC_CMD_MDR1                            0x00000000L
+#define GDC_CMD_MDR1S                           0x00000002L
+#define GDC_CMD_MDR1B                           0x00000004L
+#define GDC_CMD_MDR2                            0x00000001L
+#define GDC_CMD_MDR2S                           0x00000003L
+#define GDC_CMD_MDR2TL                          0x00000007L
+#define GDC_CMD_GMDR1E                          0x00000010L
+#define GDC_CMD_GMDR2E                          0x00000020L
+#define GDC_CMD_OVERLAP_SHADOW_XY               0x00000000L
+#define GDC_CMD_OVERLAP_SHADOW_XY_COMPOSITION   0x00000001L
+#define GDC_CMD_OVERLAP_Z_PACKED_ONBS           0x00000007L
+#define GDC_CMD_OVERLAP_Z_ORIGIN                0x00000000L
+#define GDC_CMD_OVERLAP_Z_NON_TOPLEFT           0x00000001L
+#define GDC_CMD_OVERLAP_Z_BORDER                0x00000002L
+#define GDC_CMD_OVERLAP_Z_SHADOW                0x00000003L
+#define GDC_CMD_BLTCOPY_ALT_ALPHA               0x00000000L	/* Reserverd */
+#define GDC_CMD_DC_LOGOUT                       0x00000000L	/* Reserverd */
+#define GDC_CMD_BODY_FORE_COLOR                 0x00000000L
+#define GDC_CMD_BODY_BACK_COLOR                 0x00000001L
+#define GDC_CMD_SHADOW_FORE_COLOR               0x00000002L
+#define GDC_CMD_SHADOW_BACK_COLOR               0x00000003L
+#define GDC_CMD_BORDER_FORE_COLOR               0x00000004L
+#define GDC_CMD_BORDER_BACK_COLOR               0x00000005L
+
+/* Type Code Table */
+#define GDC_TYPE_G_NOP                                  0x00000020L
+#define GDC_TYPE_G_BEGIN                                0x00000021L
+#define GDC_TYPE_G_BEGINCONT                            0x00000022L
+#define GDC_TYPE_G_END                                  0x00000023L
+#define GDC_TYPE_G_VERTEX                               0x00000030L
+#define GDC_TYPE_G_VERTEXLOG                            0x00000032L
+#define GDC_TYPE_G_VERTEXNOPLOG                         0x00000033L
+#define GDC_TYPE_G_INIT                                 0x00000040L
+#define GDC_TYPE_G_VIEWPORT                             0x00000041L
+#define GDC_TYPE_G_DEPTHRANGE                           0x00000042L
+#define GDC_TYPE_G_LOADMATRIX                           0x00000043L
+#define GDC_TYPE_G_VIEWVOLUMEXYCLIP                     0x00000044L
+#define GDC_TYPE_G_VIEWVOLUMEZCLIP                      0x00000045L
+#define GDC_TYPE_G_VIEWVOLUMEWCLIP                      0x00000046L
+#define GDC_TYPE_SETLVERTEX2I                           0x00000072L
+#define GDC_TYPE_SETLVERTEX2IP                          0x00000073L
+#define GDC_TYPE_SETMODEREGISTER                        0x000000C0L
+#define GDC_TYPE_SETGMODEREGISTER                       0x000000C1L
+#define GDC_TYPE_OVERLAPXYOFFT                          0x000000C8L
+#define GDC_TYPE_OVERLAPZOFFT                           0x000000C9L
+#define GDC_TYPE_DC_LOGOUTADDR                          0x000000CCL
+#define GDC_TYPE_SETCOLORREGISTER                       0x000000CEL
+#define GDC_TYPE_G_BEGINE                               0x000000E1L
+#define GDC_TYPE_G_BEGINCONTE                           0x000000E2L
+#define GDC_TYPE_G_ENDE                                 0x000000E3L
+#define GDC_TYPE_DRAWPIXEL                              0x00000000L
+#define GDC_TYPE_DRAWPIXELZ                             0x00000001L
+#define GDC_TYPE_DRAWLINE                               0x00000002L
+#define GDC_TYPE_DRAWLINE2I                             0x00000003L
+#define GDC_TYPE_DRAWLINE2IP                            0x00000004L
+#define GDC_TYPE_DRAWTRAP                               0x00000005L
+#define GDC_TYPE_DRAWVERTEX2I                           0x00000006L
+#define GDC_TYPE_DRAWVERTEX2IP                          0x00000007L
+#define GDC_TYPE_DRAWRECTP                              0x00000009L
+#define GDC_TYPE_DRAWBITMAPP                            0x0000000BL
+#define GDC_TYPE_BLTCOPYP                               0x0000000DL
+#define GDC_TYPE_BLTCOPYALTERNATEP                      0x0000000FL
+#define GDC_TYPE_LOADTEXTUREP                           0x00000011L
+#define GDC_TYPE_BLTTEXTUREP                            0x00000013L
+#define GDC_TYPE_BLTCOPYALTALPHABLENDP                  0x0000001FL
+#define GDC_TYPE_SETVERTEX2I                            0x00000070L
+#define GDC_TYPE_SETVERTEX2IP                           0x00000071L
+#define GDC_TYPE_DRAW                                   0x000000F0L
+#define GDC_TYPE_SETREGISTER                            0x000000F1L
+#define GDC_TYPE_SYNC                                   0x000000FCL
+#define GDC_TYPE_INTERRUPT                              0x000000FDL
+#define GDC_TYPE_NOP                                    0x0
+
+/* Raster operation */
+#define GDC_ROP_CLEAR                   0x0000
+#define GDC_ROP_AND                     0x0001
+#define GDC_ROP_AND_REVERSE             0x0002
+#define GDC_ROP_COPY                    0x0003
+#define GDC_ROP_AND_INVERTED            0x0004
+#define GDC_ROP_NOP                     0x0005
+#define GDC_ROP_XOR                     0x0006
+#define GDC_ROP_OR                      0x0007
+#define GDC_ROP_NOR                     0x0008
+#define GDC_ROP_EQUIV                   0x0009
+#define GDC_ROP_INVERT                  0x000A
+#define GDC_ROP_OR_REVERSE              0x000B
+#define GDC_ROP_COPY_INVERTED           0x000C
+#define GDC_ROP_OR_INVERTED             0x000D
+#define GDC_ROP_NAND                    0x000E
+#define GDC_ROP_SET                     0x000F
+
+#endif
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
new file mode 100644
index 000000000..35939175b
--- /dev/null
+++ b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
@@ -0,0 +1,1207 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * drivers/mb862xx/mb862xxfb.c
+ *
+ * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver
+ *
+ * (C) 2008 Anatolij Gustschin <agust@denx.de>
+ * DENX Software Engineering
+ */
+
+#undef DEBUG
+
+#include <linux/aperture.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
+#include "mb862xxfb.h"
+#include "mb862xx_reg.h"
+
+#define NR_PALETTE		256
+#define MB862XX_MEM_SIZE	0x1000000
+#define CORALP_MEM_SIZE		0x2000000
+#define CARMINE_MEM_SIZE	0x8000000
+#define DRV_NAME		"mb862xxfb"
+
+/* Helpers */
+static inline int h_total(struct fb_var_screeninfo *var)
+{
+	return var->xres + var->left_margin +
+		var->right_margin + var->hsync_len;
+}
+
+static inline int v_total(struct fb_var_screeninfo *var)
+{
+	return var->yres + var->upper_margin +
+		var->lower_margin + var->vsync_len;
+}
+
+static inline int hsp(struct fb_var_screeninfo *var)
+{
+	return var->xres + var->right_margin - 1;
+}
+
+static inline int vsp(struct fb_var_screeninfo *var)
+{
+	return var->yres + var->lower_margin - 1;
+}
+
+static inline int d_pitch(struct fb_var_screeninfo *var)
+{
+	return var->xres * var->bits_per_pixel / 8;
+}
+
+static inline unsigned int chan_to_field(unsigned int chan,
+					 struct fb_bitfield *bf)
+{
+	chan &= 0xffff;
+	chan >>= 16 - bf->length;
+	return chan << bf->offset;
+}
+
+static int mb862xxfb_setcolreg(unsigned regno,
+			       unsigned red, unsigned green, unsigned blue,
+			       unsigned transp, struct fb_info *info)
+{
+	struct mb862xxfb_par *par = info->par;
+	unsigned int val;
+
+	switch (info->fix.visual) {
+	case FB_VISUAL_TRUECOLOR:
+		if (regno < 16) {
+			val  = chan_to_field(red,   &info->var.red);
+			val |= chan_to_field(green, &info->var.green);
+			val |= chan_to_field(blue,  &info->var.blue);
+			par->pseudo_palette[regno] = val;
+		}
+		break;
+	case FB_VISUAL_PSEUDOCOLOR:
+		if (regno < 256) {
+			val = (red >> 8) << 16;
+			val |= (green >> 8) << 8;
+			val |= blue >> 8;
+			outreg(disp, GC_L0PAL0 + (regno * 4), val);
+		}
+		break;
+	default:
+		return 1;   /* unsupported type */
+	}
+	return 0;
+}
+
+static int mb862xxfb_check_var(struct fb_var_screeninfo *var,
+			       struct fb_info *fbi)
+{
+	unsigned long tmp;
+
+	fb_dbg(fbi, "%s\n", __func__);
+
+	/* check if these values fit into the registers */
+	if (var->hsync_len > 255 || var->vsync_len > 255)
+		return -EINVAL;
+
+	if ((var->xres + var->right_margin) >= 4096)
+		return -EINVAL;
+
+	if ((var->yres + var->lower_margin) > 4096)
+		return -EINVAL;
+
+	if (h_total(var) > 4096 || v_total(var) > 4096)
+		return -EINVAL;
+
+	if (var->xres_virtual > 4096 || var->yres_virtual > 4096)
+		return -EINVAL;
+
+	if (var->bits_per_pixel <= 8)
+		var->bits_per_pixel = 8;
+	else if (var->bits_per_pixel <= 16)
+		var->bits_per_pixel = 16;
+	else if (var->bits_per_pixel <= 32)
+		var->bits_per_pixel = 32;
+
+	/*
+	 * can cope with 8,16 or 24/32bpp if resulting
+	 * pitch is divisible by 64 without remainder
+	 */
+	if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT) {
+		int r;
+
+		var->bits_per_pixel = 0;
+		do {
+			var->bits_per_pixel += 8;
+			r = d_pitch(&fbi->var) % GC_L0M_L0W_UNIT;
+		} while (r && var->bits_per_pixel <= 32);
+
+		if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT)
+			return -EINVAL;
+	}
+
+	/* line length is going to be 128 bit aligned */
+	tmp = (var->xres * var->bits_per_pixel) / 8;
+	if ((tmp & 15) != 0)
+		return -EINVAL;
+
+	/* set r/g/b positions and validate bpp */
+	switch (var->bits_per_pixel) {
+	case 8:
+		var->red.length		= var->bits_per_pixel;
+		var->green.length	= var->bits_per_pixel;
+		var->blue.length	= var->bits_per_pixel;
+		var->red.offset		= 0;
+		var->green.offset	= 0;
+		var->blue.offset	= 0;
+		var->transp.length	= 0;
+		break;
+	case 16:
+		var->red.length		= 5;
+		var->green.length	= 5;
+		var->blue.length	= 5;
+		var->red.offset		= 10;
+		var->green.offset	= 5;
+		var->blue.offset	= 0;
+		var->transp.length	= 0;
+		break;
+	case 24:
+	case 32:
+		var->transp.length	= 8;
+		var->red.length		= 8;
+		var->green.length	= 8;
+		var->blue.length	= 8;
+		var->transp.offset	= 24;
+		var->red.offset		= 16;
+		var->green.offset	= 8;
+		var->blue.offset	= 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static struct fb_ops mb862xxfb_ops;
+
+/*
+ * set display parameters
+ */
+static int mb862xxfb_set_par(struct fb_info *fbi)
+{
+	struct mb862xxfb_par *par = fbi->par;
+	unsigned long reg, sc;
+
+	dev_dbg(par->dev, "%s\n", __func__);
+	if (par->type == BT_CORALP)
+		mb862xxfb_init_accel(fbi, &mb862xxfb_ops, fbi->var.xres);
+
+	if (par->pre_init)
+		return 0;
+
+	/* disp off */
+	reg = inreg(disp, GC_DCM1);
+	reg &= ~GC_DCM01_DEN;
+	outreg(disp, GC_DCM1, reg);
+
+	/* set display reference clock div. */
+	sc = par->refclk / (1000000 / fbi->var.pixclock) - 1;
+	reg = inreg(disp, GC_DCM1);
+	reg &= ~(GC_DCM01_CKS | GC_DCM01_RESV | GC_DCM01_SC);
+	reg |= sc << 8;
+	outreg(disp, GC_DCM1, reg);
+	dev_dbg(par->dev, "SC 0x%lx\n", sc);
+
+	/* disp dimension, format */
+	reg =  pack(d_pitch(&fbi->var) / GC_L0M_L0W_UNIT,
+		    (fbi->var.yres - 1));
+	if (fbi->var.bits_per_pixel == 16)
+		reg |= GC_L0M_L0C_16;
+	outreg(disp, GC_L0M, reg);
+
+	if (fbi->var.bits_per_pixel == 32) {
+		reg = inreg(disp, GC_L0EM);
+		outreg(disp, GC_L0EM, reg | GC_L0EM_L0EC_24);
+	}
+	outreg(disp, GC_WY_WX, 0);
+	reg = pack(fbi->var.yres - 1, fbi->var.xres);
+	outreg(disp, GC_WH_WW, reg);
+	outreg(disp, GC_L0OA0, 0);
+	outreg(disp, GC_L0DA0, 0);
+	outreg(disp, GC_L0DY_L0DX, 0);
+	outreg(disp, GC_L0WY_L0WX, 0);
+	outreg(disp, GC_L0WH_L0WW, reg);
+
+	/* both HW-cursors off */
+	reg = inreg(disp, GC_CPM_CUTC);
+	reg &= ~(GC_CPM_CEN0 | GC_CPM_CEN1);
+	outreg(disp, GC_CPM_CUTC, reg);
+
+	/* timings */
+	reg = pack(fbi->var.xres - 1, fbi->var.xres - 1);
+	outreg(disp, GC_HDB_HDP, reg);
+	reg = pack((fbi->var.yres - 1), vsp(&fbi->var));
+	outreg(disp, GC_VDP_VSP, reg);
+	reg = ((fbi->var.vsync_len - 1) << 24) |
+	      pack((fbi->var.hsync_len - 1), hsp(&fbi->var));
+	outreg(disp, GC_VSW_HSW_HSP, reg);
+	outreg(disp, GC_HTP, pack(h_total(&fbi->var) - 1, 0));
+	outreg(disp, GC_VTR, pack(v_total(&fbi->var) - 1, 0));
+
+	/* display on */
+	reg = inreg(disp, GC_DCM1);
+	reg |= GC_DCM01_DEN | GC_DCM01_L0E;
+	reg &= ~GC_DCM01_ESY;
+	outreg(disp, GC_DCM1, reg);
+	return 0;
+}
+
+static int mb862xxfb_pan(struct fb_var_screeninfo *var,
+			 struct fb_info *info)
+{
+	struct mb862xxfb_par *par = info->par;
+	unsigned long reg;
+
+	reg = pack(var->yoffset, var->xoffset);
+	outreg(disp, GC_L0WY_L0WX, reg);
+
+	reg = pack(info->var.yres_virtual, info->var.xres_virtual);
+	outreg(disp, GC_L0WH_L0WW, reg);
+	return 0;
+}
+
+static int mb862xxfb_blank(int mode, struct fb_info *fbi)
+{
+	struct mb862xxfb_par  *par = fbi->par;
+	unsigned long reg;
+
+	fb_dbg(fbi, "blank mode=%d\n", mode);
+
+	switch (mode) {
+	case FB_BLANK_POWERDOWN:
+		reg = inreg(disp, GC_DCM1);
+		reg &= ~GC_DCM01_DEN;
+		outreg(disp, GC_DCM1, reg);
+		break;
+	case FB_BLANK_UNBLANK:
+		reg = inreg(disp, GC_DCM1);
+		reg |= GC_DCM01_DEN;
+		outreg(disp, GC_DCM1, reg);
+		break;
+	case FB_BLANK_NORMAL:
+	case FB_BLANK_VSYNC_SUSPEND:
+	case FB_BLANK_HSYNC_SUSPEND:
+	default:
+		return 1;
+	}
+	return 0;
+}
+
+static int mb862xxfb_ioctl(struct fb_info *fbi, unsigned int cmd,
+			   unsigned long arg)
+{
+	struct mb862xxfb_par *par = fbi->par;
+	struct mb862xx_l1_cfg *l1_cfg = &par->l1_cfg;
+	void __user *argp = (void __user *)arg;
+	int *enable;
+	u32 l1em = 0;
+
+	switch (cmd) {
+	case MB862XX_L1_GET_CFG:
+		if (copy_to_user(argp, l1_cfg, sizeof(*l1_cfg)))
+			return -EFAULT;
+		break;
+	case MB862XX_L1_SET_CFG:
+		if (copy_from_user(l1_cfg, argp, sizeof(*l1_cfg)))
+			return -EFAULT;
+		if (l1_cfg->dh == 0 || l1_cfg->dw == 0)
+			return -EINVAL;
+		if ((l1_cfg->sw >= l1_cfg->dw) && (l1_cfg->sh >= l1_cfg->dh)) {
+			/* downscaling */
+			outreg(cap, GC_CAP_CSC,
+				pack((l1_cfg->sh << 11) / l1_cfg->dh,
+				     (l1_cfg->sw << 11) / l1_cfg->dw));
+			l1em = inreg(disp, GC_L1EM);
+			l1em &= ~GC_L1EM_DM;
+		} else if ((l1_cfg->sw <= l1_cfg->dw) &&
+			   (l1_cfg->sh <= l1_cfg->dh)) {
+			/* upscaling */
+			outreg(cap, GC_CAP_CSC,
+				pack((l1_cfg->sh << 11) / l1_cfg->dh,
+				     (l1_cfg->sw << 11) / l1_cfg->dw));
+			outreg(cap, GC_CAP_CMSS,
+				pack(l1_cfg->sw >> 1, l1_cfg->sh));
+			outreg(cap, GC_CAP_CMDS,
+				pack(l1_cfg->dw >> 1, l1_cfg->dh));
+			l1em = inreg(disp, GC_L1EM);
+			l1em |= GC_L1EM_DM;
+		}
+
+		if (l1_cfg->mirror) {
+			outreg(cap, GC_CAP_CBM,
+				inreg(cap, GC_CAP_CBM) | GC_CBM_HRV);
+			l1em |= l1_cfg->dw * 2 - 8;
+		} else {
+			outreg(cap, GC_CAP_CBM,
+				inreg(cap, GC_CAP_CBM) & ~GC_CBM_HRV);
+			l1em &= 0xffff0000;
+		}
+		outreg(disp, GC_L1EM, l1em);
+		break;
+	case MB862XX_L1_ENABLE:
+		enable = (int *)arg;
+		if (*enable) {
+			outreg(disp, GC_L1DA, par->cap_buf);
+			outreg(cap, GC_CAP_IMG_START,
+				pack(l1_cfg->sy >> 1, l1_cfg->sx));
+			outreg(cap, GC_CAP_IMG_END,
+				pack(l1_cfg->sh, l1_cfg->sw));
+			outreg(disp, GC_L1M, GC_L1M_16 | GC_L1M_YC | GC_L1M_CS |
+					     (par->l1_stride << 16));
+			outreg(disp, GC_L1WY_L1WX,
+				pack(l1_cfg->dy, l1_cfg->dx));
+			outreg(disp, GC_L1WH_L1WW,
+				pack(l1_cfg->dh - 1, l1_cfg->dw));
+			outreg(disp, GC_DLS, 1);
+			outreg(cap, GC_CAP_VCM,
+				GC_VCM_VIE | GC_VCM_CM | GC_VCM_VS_PAL);
+			outreg(disp, GC_DCM1, inreg(disp, GC_DCM1) |
+					      GC_DCM1_DEN | GC_DCM1_L1E);
+		} else {
+			outreg(cap, GC_CAP_VCM,
+				inreg(cap, GC_CAP_VCM) & ~GC_VCM_VIE);
+			outreg(disp, GC_DCM1,
+				inreg(disp, GC_DCM1) & ~GC_DCM1_L1E);
+		}
+		break;
+	case MB862XX_L1_CAP_CTL:
+		enable = (int *)arg;
+		if (*enable) {
+			outreg(cap, GC_CAP_VCM,
+				inreg(cap, GC_CAP_VCM) | GC_VCM_VIE);
+		} else {
+			outreg(cap, GC_CAP_VCM,
+				inreg(cap, GC_CAP_VCM) & ~GC_VCM_VIE);
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* framebuffer ops */
+static struct fb_ops mb862xxfb_ops = {
+	.owner		= THIS_MODULE,
+	FB_DEFAULT_IOMEM_OPS,
+	.fb_check_var	= mb862xxfb_check_var,
+	.fb_set_par	= mb862xxfb_set_par,
+	.fb_setcolreg	= mb862xxfb_setcolreg,
+	.fb_blank	= mb862xxfb_blank,
+	.fb_pan_display	= mb862xxfb_pan,
+	.fb_ioctl	= mb862xxfb_ioctl,
+};
+
+/* initialize fb_info data */
+static int __maybe_unused mb862xxfb_init_fbinfo(struct fb_info *fbi)
+{
+	struct mb862xxfb_par *par = fbi->par;
+	struct mb862xx_gc_mode *mode = par->gc_mode;
+	unsigned long reg;
+	int stride;
+
+	fbi->fbops = &mb862xxfb_ops;
+	fbi->pseudo_palette = par->pseudo_palette;
+	fbi->screen_base = par->fb_base;
+	fbi->screen_size = par->mapped_vram;
+
+	strcpy(fbi->fix.id, DRV_NAME);
+	fbi->fix.smem_start = (unsigned long)par->fb_base_phys;
+	fbi->fix.mmio_start = (unsigned long)par->mmio_base_phys;
+	fbi->fix.mmio_len = par->mmio_len;
+	fbi->fix.accel = FB_ACCEL_NONE;
+	fbi->fix.type = FB_TYPE_PACKED_PIXELS;
+	fbi->fix.type_aux = 0;
+	fbi->fix.xpanstep = 1;
+	fbi->fix.ypanstep = 1;
+	fbi->fix.ywrapstep = 0;
+
+	reg = inreg(disp, GC_DCM1);
+	if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E) {
+		/* get the disp mode from active display cfg */
+		unsigned long sc = ((reg & GC_DCM01_SC) >> 8) + 1;
+		unsigned long hsp, vsp, ht, vt;
+
+		dev_dbg(par->dev, "using bootloader's disp. mode\n");
+		fbi->var.pixclock = (sc * 1000000) / par->refclk;
+		fbi->var.xres = (inreg(disp, GC_HDB_HDP) & 0x0fff) + 1;
+		reg = inreg(disp, GC_VDP_VSP);
+		fbi->var.yres = ((reg >> 16) & 0x0fff) + 1;
+		vsp = (reg & 0x0fff) + 1;
+		fbi->var.xres_virtual = fbi->var.xres;
+		fbi->var.yres_virtual = fbi->var.yres;
+		reg = inreg(disp, GC_L0EM);
+		if (reg & GC_L0EM_L0EC_24) {
+			fbi->var.bits_per_pixel = 32;
+		} else {
+			reg = inreg(disp, GC_L0M);
+			if (reg & GC_L0M_L0C_16)
+				fbi->var.bits_per_pixel = 16;
+			else
+				fbi->var.bits_per_pixel = 8;
+		}
+		reg = inreg(disp, GC_VSW_HSW_HSP);
+		fbi->var.hsync_len = ((reg & 0xff0000) >> 16) + 1;
+		fbi->var.vsync_len = ((reg & 0x3f000000) >> 24) + 1;
+		hsp = (reg & 0xffff) + 1;
+		ht = ((inreg(disp, GC_HTP) & 0xfff0000) >> 16) + 1;
+		fbi->var.right_margin = hsp - fbi->var.xres;
+		fbi->var.left_margin = ht - hsp - fbi->var.hsync_len;
+		vt = ((inreg(disp, GC_VTR) & 0xfff0000) >> 16) + 1;
+		fbi->var.lower_margin = vsp - fbi->var.yres;
+		fbi->var.upper_margin = vt - vsp - fbi->var.vsync_len;
+	} else if (mode) {
+		dev_dbg(par->dev, "using supplied mode\n");
+		fb_videomode_to_var(&fbi->var, (struct fb_videomode *)mode);
+		fbi->var.bits_per_pixel = mode->def_bpp ? mode->def_bpp : 8;
+	} else {
+		int ret;
+
+		ret = fb_find_mode(&fbi->var, fbi, "640x480-16@60",
+				   NULL, 0, NULL, 16);
+		if (ret == 0 || ret == 4) {
+			dev_err(par->dev,
+				"failed to get initial mode\n");
+			return -EINVAL;
+		}
+	}
+
+	fbi->var.xoffset = 0;
+	fbi->var.yoffset = 0;
+	fbi->var.grayscale = 0;
+	fbi->var.nonstd = 0;
+	fbi->var.height = -1;
+	fbi->var.width = -1;
+	fbi->var.accel_flags = 0;
+	fbi->var.vmode = FB_VMODE_NONINTERLACED;
+	fbi->var.activate = FB_ACTIVATE_NOW;
+	fbi->flags =
+#ifdef __BIG_ENDIAN
+		     FBINFO_FOREIGN_ENDIAN |
+#endif
+		     FBINFO_HWACCEL_XPAN |
+		     FBINFO_HWACCEL_YPAN;
+
+	/* check and possibly fix bpp */
+	if ((fbi->fbops->fb_check_var)(&fbi->var, fbi))
+		dev_err(par->dev, "check_var() failed on initial setup?\n");
+
+	fbi->fix.visual = fbi->var.bits_per_pixel == 8 ?
+			 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+	fbi->fix.line_length = (fbi->var.xres_virtual *
+				fbi->var.bits_per_pixel) / 8;
+	fbi->fix.smem_len = fbi->fix.line_length * fbi->var.yres_virtual;
+
+	/*
+	 * reserve space for capture buffers and two cursors
+	 * at the end of vram: 720x576 * 2 * 2.2 + 64x64 * 16.
+	 */
+	par->cap_buf = par->mapped_vram - 0x1bd800 - 0x10000;
+	par->cap_len = 0x1bd800;
+	par->l1_cfg.sx = 0;
+	par->l1_cfg.sy = 0;
+	par->l1_cfg.sw = 720;
+	par->l1_cfg.sh = 576;
+	par->l1_cfg.dx = 0;
+	par->l1_cfg.dy = 0;
+	par->l1_cfg.dw = 720;
+	par->l1_cfg.dh = 576;
+	stride = par->l1_cfg.sw * (fbi->var.bits_per_pixel / 8);
+	par->l1_stride = stride / 64 + ((stride % 64) ? 1 : 0);
+	outreg(cap, GC_CAP_CBM, GC_CBM_OO | GC_CBM_CBST |
+				(par->l1_stride << 16));
+	outreg(cap, GC_CAP_CBOA, par->cap_buf);
+	outreg(cap, GC_CAP_CBLA, par->cap_buf + par->cap_len);
+	return 0;
+}
+
+/*
+ * show some display controller and cursor registers
+ */
+static ssize_t dispregs_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct mb862xxfb_par *par = fbi->par;
+	char *ptr = buf;
+	unsigned int reg;
+
+	for (reg = GC_DCM0; reg <= GC_L0DY_L0DX; reg += 4)
+		ptr += sprintf(ptr, "%08x = %08x\n",
+			       reg, inreg(disp, reg));
+
+	for (reg = GC_CPM_CUTC; reg <= GC_CUY1_CUX1; reg += 4)
+		ptr += sprintf(ptr, "%08x = %08x\n",
+			       reg, inreg(disp, reg));
+
+	for (reg = GC_DCM1; reg <= GC_L0WH_L0WW; reg += 4)
+		ptr += sprintf(ptr, "%08x = %08x\n",
+			       reg, inreg(disp, reg));
+
+	for (reg = 0x400; reg <= 0x410; reg += 4)
+		ptr += sprintf(ptr, "geo %08x = %08x\n",
+			       reg, inreg(geo, reg));
+
+	for (reg = 0x400; reg <= 0x410; reg += 4)
+		ptr += sprintf(ptr, "draw %08x = %08x\n",
+			       reg, inreg(draw, reg));
+
+	for (reg = 0x440; reg <= 0x450; reg += 4)
+		ptr += sprintf(ptr, "draw %08x = %08x\n",
+			       reg, inreg(draw, reg));
+
+	return ptr - buf;
+}
+
+static __maybe_unused DEVICE_ATTR_RO(dispregs);
+
+static irqreturn_t __maybe_unused mb862xx_intr(int irq, void *dev_id)
+{
+	struct mb862xxfb_par *par = (struct mb862xxfb_par *) dev_id;
+	unsigned long reg_ist, mask;
+
+	if (!par)
+		return IRQ_NONE;
+
+	if (par->type == BT_CARMINE) {
+		/* Get Interrupt Status */
+		reg_ist = inreg(ctrl, GC_CTRL_STATUS);
+		mask = inreg(ctrl, GC_CTRL_INT_MASK);
+		if (reg_ist == 0)
+			return IRQ_HANDLED;
+
+		reg_ist &= mask;
+		if (reg_ist == 0)
+			return IRQ_HANDLED;
+
+		/* Clear interrupt status */
+		outreg(ctrl, 0x0, reg_ist);
+	} else {
+		/* Get status */
+		reg_ist = inreg(host, GC_IST);
+		mask = inreg(host, GC_IMASK);
+
+		reg_ist &= mask;
+		if (reg_ist == 0)
+			return IRQ_HANDLED;
+
+		/* Clear status */
+		outreg(host, GC_IST, ~reg_ist);
+	}
+	return IRQ_HANDLED;
+}
+
+#if defined(CONFIG_FB_MB862XX_LIME)
+/*
+ * GDC (Lime, Coral(B/Q), Mint, ...) on host bus
+ */
+static int mb862xx_gdc_init(struct mb862xxfb_par *par)
+{
+	unsigned long ccf, mmr;
+	unsigned long ver, rev;
+
+	if (!par)
+		return -ENODEV;
+
+#if defined(CONFIG_FB_PRE_INIT_FB)
+	par->pre_init = 1;
+#endif
+	par->host = par->mmio_base;
+	par->i2c = par->mmio_base + MB862XX_I2C_BASE;
+	par->disp = par->mmio_base + MB862XX_DISP_BASE;
+	par->cap = par->mmio_base + MB862XX_CAP_BASE;
+	par->draw = par->mmio_base + MB862XX_DRAW_BASE;
+	par->geo = par->mmio_base + MB862XX_GEO_BASE;
+	par->pio = par->mmio_base + MB862XX_PIO_BASE;
+
+	par->refclk = GC_DISP_REFCLK_400;
+
+	ver = inreg(host, GC_CID);
+	rev = inreg(pio, GC_REVISION);
+	if ((ver == 0x303) && (rev & 0xffffff00) == 0x20050100) {
+		dev_info(par->dev, "Fujitsu Lime v1.%d found\n",
+			 (int)rev & 0xff);
+		par->type = BT_LIME;
+		ccf = par->gc_mode ? par->gc_mode->ccf : GC_CCF_COT_100;
+		mmr = par->gc_mode ? par->gc_mode->mmr : 0x414fb7f2;
+	} else {
+		dev_info(par->dev, "? GDC, CID/Rev.: 0x%lx/0x%lx \n", ver, rev);
+		return -ENODEV;
+	}
+
+	if (!par->pre_init) {
+		outreg(host, GC_CCF, ccf);
+		udelay(200);
+		outreg(host, GC_MMR, mmr);
+		udelay(10);
+	}
+
+	/* interrupt status */
+	outreg(host, GC_IST, 0);
+	outreg(host, GC_IMASK, GC_INT_EN);
+	return 0;
+}
+
+#if defined(CONFIG_SOCRATES)
+static struct mb862xx_gc_mode socrates_gc_mode = {
+	/* Mode for Prime View PM070WL4 TFT LCD Panel */
+	{ "800x480", 45, 800, 480, 40000, 86, 42, 33, 10, 128, 2, 0, 0, 0 },
+	/* 16 bits/pixel, 16MB, 133MHz, SDRAM memory mode value */
+	16, 0x1000000, GC_CCF_COT_133, 0x4157ba63
+};
+#endif
+
+static int of_platform_mb862xx_probe(struct platform_device *ofdev)
+{
+	struct device_node *np = ofdev->dev.of_node;
+	struct device *dev = &ofdev->dev;
+	struct mb862xxfb_par *par;
+	struct fb_info *info;
+	struct resource res;
+	resource_size_t res_size;
+	int ret = -ENODEV;
+
+	if (of_address_to_resource(np, 0, &res)) {
+		dev_err(dev, "Invalid address\n");
+		return -ENXIO;
+	}
+
+	info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
+	if (!info)
+		return -ENOMEM;
+
+	par = info->par;
+	par->info = info;
+	par->dev = dev;
+
+	par->irq = irq_of_parse_and_map(np, 0);
+	if (!par->irq) {
+		dev_err(dev, "failed to map irq\n");
+		ret = -ENODEV;
+		goto fbrel;
+	}
+
+	res_size = resource_size(&res);
+	par->res = request_mem_region(res.start, res_size, DRV_NAME);
+	if (par->res == NULL) {
+		dev_err(dev, "Cannot claim framebuffer/mmio\n");
+		ret = -ENXIO;
+		goto irqdisp;
+	}
+
+#if defined(CONFIG_SOCRATES)
+	par->gc_mode = &socrates_gc_mode;
+#endif
+
+	par->fb_base_phys = res.start;
+	par->mmio_base_phys = res.start + MB862XX_MMIO_BASE;
+	par->mmio_len = MB862XX_MMIO_SIZE;
+	if (par->gc_mode)
+		par->mapped_vram = par->gc_mode->max_vram;
+	else
+		par->mapped_vram = MB862XX_MEM_SIZE;
+
+	par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
+	if (par->fb_base == NULL) {
+		dev_err(dev, "Cannot map framebuffer\n");
+		goto rel_reg;
+	}
+
+	par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
+	if (par->mmio_base == NULL) {
+		dev_err(dev, "Cannot map registers\n");
+		goto fb_unmap;
+	}
+
+	dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
+		(u64)par->fb_base_phys, (ulong)par->mapped_vram);
+	dev_dbg(dev, "mmio phys 0x%llx 0x%lx, (irq = %d)\n",
+		(u64)par->mmio_base_phys, (ulong)par->mmio_len, par->irq);
+
+	if (mb862xx_gdc_init(par))
+		goto io_unmap;
+
+	if (request_irq(par->irq, mb862xx_intr, 0,
+			DRV_NAME, (void *)par)) {
+		dev_err(dev, "Cannot request irq\n");
+		goto io_unmap;
+	}
+
+	mb862xxfb_init_fbinfo(info);
+
+	if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
+		dev_err(dev, "Could not allocate cmap for fb_info.\n");
+		goto free_irq;
+	}
+
+	if ((info->fbops->fb_set_par)(info))
+		dev_err(dev, "set_var() failed on initial setup?\n");
+
+	if (register_framebuffer(info)) {
+		dev_err(dev, "failed to register framebuffer\n");
+		goto rel_cmap;
+	}
+
+	dev_set_drvdata(dev, info);
+
+	if (device_create_file(dev, &dev_attr_dispregs))
+		dev_err(dev, "Can't create sysfs regdump file\n");
+	return 0;
+
+rel_cmap:
+	fb_dealloc_cmap(&info->cmap);
+free_irq:
+	outreg(host, GC_IMASK, 0);
+	free_irq(par->irq, (void *)par);
+io_unmap:
+	iounmap(par->mmio_base);
+fb_unmap:
+	iounmap(par->fb_base);
+rel_reg:
+	release_mem_region(res.start, res_size);
+irqdisp:
+	irq_dispose_mapping(par->irq);
+fbrel:
+	framebuffer_release(info);
+	return ret;
+}
+
+static void of_platform_mb862xx_remove(struct platform_device *ofdev)
+{
+	struct fb_info *fbi = dev_get_drvdata(&ofdev->dev);
+	struct mb862xxfb_par *par = fbi->par;
+	resource_size_t res_size = resource_size(par->res);
+	unsigned long reg;
+
+	fb_dbg(fbi, "%s release\n", fbi->fix.id);
+
+	/* display off */
+	reg = inreg(disp, GC_DCM1);
+	reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
+	outreg(disp, GC_DCM1, reg);
+
+	/* disable interrupts */
+	outreg(host, GC_IMASK, 0);
+
+	free_irq(par->irq, (void *)par);
+	irq_dispose_mapping(par->irq);
+
+	device_remove_file(&ofdev->dev, &dev_attr_dispregs);
+
+	unregister_framebuffer(fbi);
+	fb_dealloc_cmap(&fbi->cmap);
+
+	iounmap(par->mmio_base);
+	iounmap(par->fb_base);
+
+	release_mem_region(par->res->start, res_size);
+	framebuffer_release(fbi);
+}
+
+/*
+ * common types
+ */
+static struct of_device_id of_platform_mb862xx_tbl[] = {
+	{ .compatible = "fujitsu,MB86276", },
+	{ .compatible = "fujitsu,lime", },
+	{ .compatible = "fujitsu,MB86277", },
+	{ .compatible = "fujitsu,mint", },
+	{ .compatible = "fujitsu,MB86293", },
+	{ .compatible = "fujitsu,MB86294", },
+	{ .compatible = "fujitsu,coral", },
+	{ /* end */ }
+};
+MODULE_DEVICE_TABLE(of, of_platform_mb862xx_tbl);
+
+static struct platform_driver of_platform_mb862xxfb_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = of_platform_mb862xx_tbl,
+	},
+	.probe		= of_platform_mb862xx_probe,
+	.remove		= of_platform_mb862xx_remove,
+};
+#endif
+
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+static int coralp_init(struct mb862xxfb_par *par)
+{
+	int cn, ver;
+
+	par->host = par->mmio_base;
+	par->i2c = par->mmio_base + MB862XX_I2C_BASE;
+	par->disp = par->mmio_base + MB862XX_DISP_BASE;
+	par->cap = par->mmio_base + MB862XX_CAP_BASE;
+	par->draw = par->mmio_base + MB862XX_DRAW_BASE;
+	par->geo = par->mmio_base + MB862XX_GEO_BASE;
+	par->pio = par->mmio_base + MB862XX_PIO_BASE;
+
+	par->refclk = GC_DISP_REFCLK_400;
+
+	if (par->mapped_vram >= 0x2000000) {
+		/* relocate gdc registers space */
+		writel(1, par->fb_base + MB862XX_MMIO_BASE + GC_RSW);
+		udelay(1); /* wait at least 20 bus cycles */
+	}
+
+	ver = inreg(host, GC_CID);
+	cn = (ver & GC_CID_CNAME_MSK) >> 8;
+	ver = ver & GC_CID_VERSION_MSK;
+	if (cn == 3) {
+		unsigned long reg;
+
+		dev_info(par->dev, "Fujitsu Coral-%s GDC Rev.%d found\n",\
+			 (ver == 6) ? "P" : (ver == 8) ? "PA" : "?",
+			 par->pdev->revision);
+		reg = inreg(disp, GC_DCM1);
+		if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E)
+			par->pre_init = 1;
+
+		if (!par->pre_init) {
+			outreg(host, GC_CCF, GC_CCF_CGE_166 | GC_CCF_COT_133);
+			udelay(200);
+			outreg(host, GC_MMR, GC_MMR_CORALP_EVB_VAL);
+			udelay(10);
+		}
+		/* Clear interrupt status */
+		outreg(host, GC_IST, 0);
+	} else {
+		return -ENODEV;
+	}
+
+	mb862xx_i2c_init(par);
+	return 0;
+}
+
+static int init_dram_ctrl(struct mb862xxfb_par *par)
+{
+	unsigned long i = 0;
+
+	/*
+	 * Set io mode first! Spec. says IC may be destroyed
+	 * if not set to SSTL2/LVCMOS before init.
+	 */
+	outreg(dram_ctrl, GC_DCTL_IOCONT1_IOCONT0, GC_EVB_DCTL_IOCONT1_IOCONT0);
+
+	/* DRAM init */
+	outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD);
+	outreg(dram_ctrl, GC_DCTL_SETTIME1_EMODE, GC_EVB_DCTL_SETTIME1_EMODE);
+	outreg(dram_ctrl, GC_DCTL_REFRESH_SETTIME2,
+	       GC_EVB_DCTL_REFRESH_SETTIME2);
+	outreg(dram_ctrl, GC_DCTL_RSV2_RSV1, GC_EVB_DCTL_RSV2_RSV1);
+	outreg(dram_ctrl, GC_DCTL_DDRIF2_DDRIF1, GC_EVB_DCTL_DDRIF2_DDRIF1);
+	outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES);
+
+	/* DLL reset done? */
+	while ((inreg(dram_ctrl, GC_DCTL_RSV0_STATES) & GC_DCTL_STATES_MSK)) {
+		udelay(GC_DCTL_INIT_WAIT_INTERVAL);
+		if (i++ > GC_DCTL_INIT_WAIT_CNT) {
+			dev_err(par->dev, "VRAM init failed.\n");
+			return -EINVAL;
+		}
+	}
+	outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD_AFT_RST);
+	outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES_AFT_RST);
+	return 0;
+}
+
+static int carmine_init(struct mb862xxfb_par *par)
+{
+	unsigned long reg;
+
+	par->ctrl = par->mmio_base + MB86297_CTRL_BASE;
+	par->i2c = par->mmio_base + MB86297_I2C_BASE;
+	par->disp = par->mmio_base + MB86297_DISP0_BASE;
+	par->disp1 = par->mmio_base + MB86297_DISP1_BASE;
+	par->cap = par->mmio_base + MB86297_CAP0_BASE;
+	par->cap1 = par->mmio_base + MB86297_CAP1_BASE;
+	par->draw = par->mmio_base + MB86297_DRAW_BASE;
+	par->dram_ctrl = par->mmio_base + MB86297_DRAMCTRL_BASE;
+	par->wrback = par->mmio_base + MB86297_WRBACK_BASE;
+
+	par->refclk = GC_DISP_REFCLK_533;
+
+	/* warm up */
+	reg = GC_CTRL_CLK_EN_DRAM | GC_CTRL_CLK_EN_2D3D | GC_CTRL_CLK_EN_DISP0;
+	outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
+
+	/* check for engine module revision */
+	if (inreg(draw, GC_2D3D_REV) == GC_RE_REVISION)
+		dev_info(par->dev, "Fujitsu Carmine GDC Rev.%d found\n",
+			 par->pdev->revision);
+	else
+		goto err_init;
+
+	reg &= ~GC_CTRL_CLK_EN_2D3D;
+	outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
+
+	/* set up vram */
+	if (init_dram_ctrl(par) < 0)
+		goto err_init;
+
+	outreg(ctrl, GC_CTRL_INT_MASK, 0);
+	return 0;
+
+err_init:
+	outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
+	return -EINVAL;
+}
+
+static inline int mb862xx_pci_gdc_init(struct mb862xxfb_par *par)
+{
+	switch (par->type) {
+	case BT_CORALP:
+		return coralp_init(par);
+	case BT_CARMINE:
+		return carmine_init(par);
+	default:
+		return -ENODEV;
+	}
+}
+
+#define CHIP_ID(id)	\
+	{ PCI_DEVICE(PCI_VENDOR_ID_FUJITSU_LIMITED, id) }
+
+static const struct pci_device_id mb862xx_pci_tbl[] = {
+	/* MB86295/MB86296 */
+	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALP),
+	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALPA),
+	/* MB86297 */
+	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CARMINE),
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mb862xx_pci_tbl);
+
+static int mb862xx_pci_probe(struct pci_dev *pdev,
+			     const struct pci_device_id *ent)
+{
+	struct mb862xxfb_par *par;
+	struct fb_info *info;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	ret = aperture_remove_conflicting_pci_devices(pdev, "mb862xxfb");
+	if (ret)
+		return ret;
+
+	ret = pci_enable_device(pdev);
+	if (ret < 0) {
+		dev_err(dev, "Cannot enable PCI device\n");
+		goto out;
+	}
+
+	info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
+	if (!info) {
+		ret = -ENOMEM;
+		goto dis_dev;
+	}
+
+	par = info->par;
+	par->info = info;
+	par->dev = dev;
+	par->pdev = pdev;
+	par->irq = pdev->irq;
+
+	ret = pci_request_regions(pdev, DRV_NAME);
+	if (ret < 0) {
+		dev_err(dev, "Cannot reserve region(s) for PCI device\n");
+		goto rel_fb;
+	}
+
+	switch (pdev->device) {
+	case PCI_DEVICE_ID_FUJITSU_CORALP:
+	case PCI_DEVICE_ID_FUJITSU_CORALPA:
+		par->fb_base_phys = pci_resource_start(par->pdev, 0);
+		par->mapped_vram = CORALP_MEM_SIZE;
+		if (par->mapped_vram >= 0x2000000) {
+			par->mmio_base_phys = par->fb_base_phys +
+					      MB862XX_MMIO_HIGH_BASE;
+		} else {
+			par->mmio_base_phys = par->fb_base_phys +
+					      MB862XX_MMIO_BASE;
+		}
+		par->mmio_len = MB862XX_MMIO_SIZE;
+		par->type = BT_CORALP;
+		break;
+	case PCI_DEVICE_ID_FUJITSU_CARMINE:
+		par->fb_base_phys = pci_resource_start(par->pdev, 2);
+		par->mmio_base_phys = pci_resource_start(par->pdev, 3);
+		par->mmio_len = pci_resource_len(par->pdev, 3);
+		par->mapped_vram = CARMINE_MEM_SIZE;
+		par->type = BT_CARMINE;
+		break;
+	default:
+		/* should never occur */
+		ret = -EIO;
+		goto rel_reg;
+	}
+
+	par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
+	if (par->fb_base == NULL) {
+		dev_err(dev, "Cannot map framebuffer\n");
+		ret = -EIO;
+		goto rel_reg;
+	}
+
+	par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
+	if (par->mmio_base == NULL) {
+		dev_err(dev, "Cannot map registers\n");
+		ret = -EIO;
+		goto fb_unmap;
+	}
+
+	dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
+		(unsigned long long)par->fb_base_phys, (ulong)par->mapped_vram);
+	dev_dbg(dev, "mmio phys 0x%llx 0x%lx\n",
+		(unsigned long long)par->mmio_base_phys, (ulong)par->mmio_len);
+
+	ret = mb862xx_pci_gdc_init(par);
+	if (ret)
+		goto io_unmap;
+
+	ret = request_irq(par->irq, mb862xx_intr, IRQF_SHARED,
+			  DRV_NAME, (void *)par);
+	if (ret) {
+		dev_err(dev, "Cannot request irq\n");
+		goto io_unmap;
+	}
+
+	mb862xxfb_init_fbinfo(info);
+
+	if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
+		dev_err(dev, "Could not allocate cmap for fb_info.\n");
+		ret = -ENOMEM;
+		goto free_irq;
+	}
+
+	if ((info->fbops->fb_set_par)(info))
+		dev_err(dev, "set_var() failed on initial setup?\n");
+
+	ret = register_framebuffer(info);
+	if (ret < 0) {
+		dev_err(dev, "failed to register framebuffer\n");
+		goto rel_cmap;
+	}
+
+	pci_set_drvdata(pdev, info);
+
+	if (device_create_file(dev, &dev_attr_dispregs))
+		dev_err(dev, "Can't create sysfs regdump file\n");
+
+	if (par->type == BT_CARMINE)
+		outreg(ctrl, GC_CTRL_INT_MASK, GC_CARMINE_INT_EN);
+	else
+		outreg(host, GC_IMASK, GC_INT_EN);
+
+	return 0;
+
+rel_cmap:
+	fb_dealloc_cmap(&info->cmap);
+free_irq:
+	free_irq(par->irq, (void *)par);
+io_unmap:
+	iounmap(par->mmio_base);
+fb_unmap:
+	iounmap(par->fb_base);
+rel_reg:
+	pci_release_regions(pdev);
+rel_fb:
+	framebuffer_release(info);
+dis_dev:
+	pci_disable_device(pdev);
+out:
+	return ret;
+}
+
+static void mb862xx_pci_remove(struct pci_dev *pdev)
+{
+	struct fb_info *fbi = pci_get_drvdata(pdev);
+	struct mb862xxfb_par *par = fbi->par;
+	unsigned long reg;
+
+	fb_dbg(fbi, "%s release\n", fbi->fix.id);
+
+	/* display off */
+	reg = inreg(disp, GC_DCM1);
+	reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
+	outreg(disp, GC_DCM1, reg);
+
+	if (par->type == BT_CARMINE) {
+		outreg(ctrl, GC_CTRL_INT_MASK, 0);
+		outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
+	} else {
+		outreg(host, GC_IMASK, 0);
+	}
+
+	mb862xx_i2c_exit(par);
+
+	device_remove_file(&pdev->dev, &dev_attr_dispregs);
+
+	unregister_framebuffer(fbi);
+	fb_dealloc_cmap(&fbi->cmap);
+
+	free_irq(par->irq, (void *)par);
+	iounmap(par->mmio_base);
+	iounmap(par->fb_base);
+
+	pci_release_regions(pdev);
+	framebuffer_release(fbi);
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver mb862xxfb_pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= mb862xx_pci_tbl,
+	.probe		= mb862xx_pci_probe,
+	.remove		= mb862xx_pci_remove,
+};
+#endif
+
+static int mb862xxfb_init(void)
+{
+	int ret = -ENODEV;
+
+	if (fb_modesetting_disabled(DRV_NAME))
+		return -ENODEV;
+
+#if defined(CONFIG_FB_MB862XX_LIME)
+	ret = platform_driver_register(&of_platform_mb862xxfb_driver);
+#endif
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+	ret = pci_register_driver(&mb862xxfb_pci_driver);
+#endif
+	return ret;
+}
+
+static void __exit mb862xxfb_exit(void)
+{
+#if defined(CONFIG_FB_MB862XX_LIME)
+	platform_driver_unregister(&of_platform_mb862xxfb_driver);
+#endif
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+	pci_unregister_driver(&mb862xxfb_pci_driver);
+#endif
+}
+
+module_init(mb862xxfb_init);
+module_exit(mb862xxfb_exit);
+
+MODULE_DESCRIPTION("Fujitsu MB862xx Framebuffer driver");
+MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
+MODULE_LICENSE("GPL v2");