mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 02:34:23 +08:00
06d62f8288
The FB_REG09 define is cut and pasted twice so we can remove the second instance. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
338 lines
8.5 KiB
C
338 lines
8.5 KiB
C
/**************************************************************************
|
|
* Copyright (c) 2011, Intel Corporation.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/* TODO
|
|
* - Split functions by vbt type
|
|
* - Make them all take drm_device
|
|
* - Check ioremap failures
|
|
*/
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm.h>
|
|
#include <drm/gma_drm.h>
|
|
#include "psb_drv.h"
|
|
#include "mid_bios.h"
|
|
|
|
static void mid_get_fuse_settings(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
|
|
uint32_t fuse_value = 0;
|
|
uint32_t fuse_value_tmp = 0;
|
|
|
|
#define FB_REG06 0xD0810600
|
|
#define FB_MIPI_DISABLE (1 << 11)
|
|
#define FB_REG09 0xD0810900
|
|
#define FB_SKU_MASK 0x7000
|
|
#define FB_SKU_SHIFT 12
|
|
#define FB_SKU_100 0
|
|
#define FB_SKU_100L 1
|
|
#define FB_SKU_83 2
|
|
if (pci_root == NULL) {
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
|
|
|
|
pci_write_config_dword(pci_root, 0xD0, FB_REG06);
|
|
pci_read_config_dword(pci_root, 0xD4, &fuse_value);
|
|
|
|
/* FB_MIPI_DISABLE doesn't mean LVDS on with Medfield */
|
|
if (IS_MRST(dev))
|
|
dev_priv->iLVDS_enable = fuse_value & FB_MIPI_DISABLE;
|
|
|
|
DRM_INFO("internal display is %s\n",
|
|
dev_priv->iLVDS_enable ? "LVDS display" : "MIPI display");
|
|
|
|
/* Prevent runtime suspend at start*/
|
|
if (dev_priv->iLVDS_enable) {
|
|
dev_priv->is_lvds_on = true;
|
|
dev_priv->is_mipi_on = false;
|
|
} else {
|
|
dev_priv->is_mipi_on = true;
|
|
dev_priv->is_lvds_on = false;
|
|
}
|
|
|
|
dev_priv->video_device_fuse = fuse_value;
|
|
|
|
pci_write_config_dword(pci_root, 0xD0, FB_REG09);
|
|
pci_read_config_dword(pci_root, 0xD4, &fuse_value);
|
|
|
|
dev_dbg(dev->dev, "SKU values is 0x%x.\n", fuse_value);
|
|
fuse_value_tmp = (fuse_value & FB_SKU_MASK) >> FB_SKU_SHIFT;
|
|
|
|
dev_priv->fuse_reg_value = fuse_value;
|
|
|
|
switch (fuse_value_tmp) {
|
|
case FB_SKU_100:
|
|
dev_priv->core_freq = 200;
|
|
break;
|
|
case FB_SKU_100L:
|
|
dev_priv->core_freq = 100;
|
|
break;
|
|
case FB_SKU_83:
|
|
dev_priv->core_freq = 166;
|
|
break;
|
|
default:
|
|
dev_warn(dev->dev, "Invalid SKU values, SKU value = 0x%08x\n",
|
|
fuse_value_tmp);
|
|
dev_priv->core_freq = 0;
|
|
}
|
|
dev_dbg(dev->dev, "LNC core clk is %dMHz.\n", dev_priv->core_freq);
|
|
pci_dev_put(pci_root);
|
|
}
|
|
|
|
/*
|
|
* Get the revison ID, B0:D2:F0;0x08
|
|
*/
|
|
static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
|
|
{
|
|
uint32_t platform_rev_id = 0;
|
|
struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
|
|
|
|
if (pci_gfx_root == NULL) {
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
pci_read_config_dword(pci_gfx_root, 0x08, &platform_rev_id);
|
|
dev_priv->platform_rev_id = (uint8_t) platform_rev_id;
|
|
pci_dev_put(pci_gfx_root);
|
|
dev_dbg(dev_priv->dev->dev, "platform_rev_id is %x\n",
|
|
dev_priv->platform_rev_id);
|
|
}
|
|
|
|
struct mid_vbt_header {
|
|
u32 signature;
|
|
u8 revision;
|
|
} __packed;
|
|
|
|
/* The same for r0 and r1 */
|
|
struct vbt_r0 {
|
|
struct mid_vbt_header vbt_header;
|
|
u8 size;
|
|
u8 checksum;
|
|
} __packed;
|
|
|
|
struct vbt_r10 {
|
|
struct mid_vbt_header vbt_header;
|
|
u8 checksum;
|
|
u16 size;
|
|
u8 panel_count;
|
|
u8 primary_panel_idx;
|
|
u8 secondary_panel_idx;
|
|
u8 __reserved[5];
|
|
} __packed;
|
|
|
|
static int read_vbt_r0(u32 addr, struct vbt_r0 *vbt)
|
|
{
|
|
void __iomem *vbt_virtual;
|
|
|
|
vbt_virtual = ioremap(addr, sizeof(*vbt));
|
|
if (vbt_virtual == NULL)
|
|
return -1;
|
|
|
|
memcpy_fromio(vbt, vbt_virtual, sizeof(*vbt));
|
|
iounmap(vbt_virtual);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int read_vbt_r10(u32 addr, struct vbt_r10 *vbt)
|
|
{
|
|
void __iomem *vbt_virtual;
|
|
|
|
vbt_virtual = ioremap(addr, sizeof(*vbt));
|
|
if (!vbt_virtual)
|
|
return -1;
|
|
|
|
memcpy_fromio(vbt, vbt_virtual, sizeof(*vbt));
|
|
iounmap(vbt_virtual);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mid_get_vbt_data_r0(struct drm_psb_private *dev_priv, u32 addr)
|
|
{
|
|
struct vbt_r0 vbt;
|
|
void __iomem *gct_virtual;
|
|
struct gct_r0 gct;
|
|
u8 bpi;
|
|
|
|
if (read_vbt_r0(addr, &vbt))
|
|
return -1;
|
|
|
|
gct_virtual = ioremap(addr + sizeof(vbt), vbt.size - sizeof(vbt));
|
|
if (!gct_virtual)
|
|
return -1;
|
|
memcpy_fromio(&gct, gct_virtual, sizeof(gct));
|
|
iounmap(gct_virtual);
|
|
|
|
bpi = gct.PD.BootPanelIndex;
|
|
dev_priv->gct_data.bpi = bpi;
|
|
dev_priv->gct_data.pt = gct.PD.PanelType;
|
|
dev_priv->gct_data.DTD = gct.panel[bpi].DTD;
|
|
dev_priv->gct_data.Panel_Port_Control =
|
|
gct.panel[bpi].Panel_Port_Control;
|
|
dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
|
|
gct.panel[bpi].Panel_MIPI_Display_Descriptor;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mid_get_vbt_data_r1(struct drm_psb_private *dev_priv, u32 addr)
|
|
{
|
|
struct vbt_r0 vbt;
|
|
void __iomem *gct_virtual;
|
|
struct gct_r1 gct;
|
|
u8 bpi;
|
|
|
|
if (read_vbt_r0(addr, &vbt))
|
|
return -1;
|
|
|
|
gct_virtual = ioremap(addr + sizeof(vbt), vbt.size - sizeof(vbt));
|
|
if (!gct_virtual)
|
|
return -1;
|
|
memcpy_fromio(&gct, gct_virtual, sizeof(gct));
|
|
iounmap(gct_virtual);
|
|
|
|
bpi = gct.PD.BootPanelIndex;
|
|
dev_priv->gct_data.bpi = bpi;
|
|
dev_priv->gct_data.pt = gct.PD.PanelType;
|
|
dev_priv->gct_data.DTD = gct.panel[bpi].DTD;
|
|
dev_priv->gct_data.Panel_Port_Control =
|
|
gct.panel[bpi].Panel_Port_Control;
|
|
dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
|
|
gct.panel[bpi].Panel_MIPI_Display_Descriptor;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mid_get_vbt_data_r10(struct drm_psb_private *dev_priv, u32 addr)
|
|
{
|
|
struct vbt_r10 vbt;
|
|
void __iomem *gct_virtual;
|
|
struct gct_r10 *gct;
|
|
struct oaktrail_timing_info *dp_ti = &dev_priv->gct_data.DTD;
|
|
struct gct_r10_timing_info *ti;
|
|
int ret = -1;
|
|
|
|
if (read_vbt_r10(addr, &vbt))
|
|
return -1;
|
|
|
|
gct = kmalloc(sizeof(*gct) * vbt.panel_count, GFP_KERNEL);
|
|
if (!gct)
|
|
return -1;
|
|
|
|
gct_virtual = ioremap(addr + sizeof(vbt),
|
|
sizeof(*gct) * vbt.panel_count);
|
|
if (!gct_virtual)
|
|
goto out;
|
|
memcpy_fromio(gct, gct_virtual, sizeof(*gct));
|
|
iounmap(gct_virtual);
|
|
|
|
dev_priv->gct_data.bpi = vbt.primary_panel_idx;
|
|
dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
|
|
gct[vbt.primary_panel_idx].Panel_MIPI_Display_Descriptor;
|
|
|
|
ti = &gct[vbt.primary_panel_idx].DTD;
|
|
dp_ti->pixel_clock = ti->pixel_clock;
|
|
dp_ti->hactive_hi = ti->hactive_hi;
|
|
dp_ti->hactive_lo = ti->hactive_lo;
|
|
dp_ti->hblank_hi = ti->hblank_hi;
|
|
dp_ti->hblank_lo = ti->hblank_lo;
|
|
dp_ti->hsync_offset_hi = ti->hsync_offset_hi;
|
|
dp_ti->hsync_offset_lo = ti->hsync_offset_lo;
|
|
dp_ti->hsync_pulse_width_hi = ti->hsync_pulse_width_hi;
|
|
dp_ti->hsync_pulse_width_lo = ti->hsync_pulse_width_lo;
|
|
dp_ti->vactive_hi = ti->vactive_hi;
|
|
dp_ti->vactive_lo = ti->vactive_lo;
|
|
dp_ti->vblank_hi = ti->vblank_hi;
|
|
dp_ti->vblank_lo = ti->vblank_lo;
|
|
dp_ti->vsync_offset_hi = ti->vsync_offset_hi;
|
|
dp_ti->vsync_offset_lo = ti->vsync_offset_lo;
|
|
dp_ti->vsync_pulse_width_hi = ti->vsync_pulse_width_hi;
|
|
dp_ti->vsync_pulse_width_lo = ti->vsync_pulse_width_lo;
|
|
|
|
ret = 0;
|
|
out:
|
|
kfree(gct);
|
|
return ret;
|
|
}
|
|
|
|
static void mid_get_vbt_data(struct drm_psb_private *dev_priv)
|
|
{
|
|
struct drm_device *dev = dev_priv->dev;
|
|
u32 addr;
|
|
u8 __iomem *vbt_virtual;
|
|
struct mid_vbt_header vbt_header;
|
|
struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
|
|
int ret = -1;
|
|
|
|
/* Get the address of the platform config vbt */
|
|
pci_read_config_dword(pci_gfx_root, 0xFC, &addr);
|
|
pci_dev_put(pci_gfx_root);
|
|
|
|
dev_dbg(dev->dev, "drm platform config address is %x\n", addr);
|
|
|
|
if (!addr)
|
|
goto out;
|
|
|
|
/* get the virtual address of the vbt */
|
|
vbt_virtual = ioremap(addr, sizeof(vbt_header));
|
|
if (!vbt_virtual)
|
|
goto out;
|
|
|
|
memcpy_fromio(&vbt_header, vbt_virtual, sizeof(vbt_header));
|
|
iounmap(vbt_virtual);
|
|
|
|
if (memcmp(&vbt_header.signature, "$GCT", 4))
|
|
goto out;
|
|
|
|
dev_dbg(dev->dev, "GCT revision is %02x\n", vbt_header.revision);
|
|
|
|
switch (vbt_header.revision) {
|
|
case 0x00:
|
|
ret = mid_get_vbt_data_r0(dev_priv, addr);
|
|
break;
|
|
case 0x01:
|
|
ret = mid_get_vbt_data_r1(dev_priv, addr);
|
|
break;
|
|
case 0x10:
|
|
ret = mid_get_vbt_data_r10(dev_priv, addr);
|
|
break;
|
|
default:
|
|
dev_err(dev->dev, "Unknown revision of GCT!\n");
|
|
}
|
|
|
|
out:
|
|
if (ret)
|
|
dev_err(dev->dev, "Unable to read GCT!");
|
|
else
|
|
dev_priv->has_gct = true;
|
|
}
|
|
|
|
int mid_chip_setup(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
mid_get_fuse_settings(dev);
|
|
mid_get_vbt_data(dev_priv);
|
|
mid_get_pci_revID(dev_priv);
|
|
return 0;
|
|
}
|