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Message-ID: <20110330090028.5897.41970.stgit@localhost.localdomain>
Date: Wed, 30 Mar 2011 10:00:32 +0100
From: Alan Cox <alan@...ux.intel.com>
To: greg@...ah.com, linux-kernel@...r.kernel.org
Subject: [PATCH 10/18] gma500: Moorestown does its setup differently
Grovel the firmware via the Moorestown interfaces and read the other bits
off the fuses.
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---
drivers/staging/gma500/psb_drv.c | 241 ++++++++++++++++++++++++++++++++++----
1 files changed, 213 insertions(+), 28 deletions(-)
diff --git a/drivers/staging/gma500/psb_drv.c b/drivers/staging/gma500/psb_drv.c
index a7391c5..878b603 100644
--- a/drivers/staging/gma500/psb_drv.c
+++ b/drivers/staging/gma500/psb_drv.c
@@ -320,6 +320,210 @@ static void psb_do_takedown(struct drm_device *dev)
}
+void mrst_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_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
+ pci_write_config_dword(pci_root, 0xD0, FB_REG06);
+ pci_read_config_dword(pci_root, 0xD4, &fuse_value);
+
+ 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);
+
+ DRM_INFO("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:
+ DRM_ERROR("Invalid SKU values, SKU value = 0x%08x\n", fuse_value_tmp);
+ dev_priv->core_freq = 0;
+ }
+ DRM_INFO("LNC core clk is %dMHz.\n", dev_priv->core_freq);
+ pci_dev_put(pci_root);
+}
+
+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));
+
+ /*get the revison ID, B0:D2:F0;0x08 */
+ 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);
+ PSB_DEBUG_ENTRY("platform_rev_id is %x\n", dev_priv->platform_rev_id);
+}
+
+void mrst_get_vbt_data(struct drm_psb_private *dev_priv)
+{
+ struct mrst_vbt *vbt = &dev_priv->vbt_data;
+ u32 platform_config_address;
+ u16 new_size;
+ u8 *vbt_virtual;
+ u8 bpi;
+ u8 number_desc = 0;
+ struct mrst_timing_info *dp_ti = &dev_priv->gct_data.DTD;
+ struct gct_r10_timing_info ti;
+ void *pGCT;
+ struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+
+ /*get the address of the platform config vbt, B0:D2:F0;0xFC */
+ pci_read_config_dword(pci_gfx_root, 0xFC, &platform_config_address);
+ pci_dev_put(pci_gfx_root);
+ DRM_INFO("drm platform config address is %x\n",
+ platform_config_address);
+
+ /* check for platform config address == 0. */
+ /* this means fw doesn't support vbt */
+
+ if (platform_config_address == 0) {
+ vbt->size = 0;
+ return;
+ }
+
+ /* get the virtual address of the vbt */
+ vbt_virtual = ioremap(platform_config_address, sizeof(*vbt));
+
+ memcpy(vbt, vbt_virtual, sizeof(*vbt));
+ iounmap(vbt_virtual); /* Free virtual address space */
+
+ printk(KERN_ALERT "GCT revision is %x\n", vbt->revision);
+
+ switch (vbt->revision) {
+ case 0:
+ vbt->mrst_gct = NULL;
+ vbt->mrst_gct = \
+ ioremap(platform_config_address + sizeof(*vbt) - 4,
+ vbt->size - sizeof(*vbt) + 4);
+ pGCT = vbt->mrst_gct;
+ bpi = ((struct mrst_gct_v1 *)pGCT)->PD.BootPanelIndex;
+ dev_priv->gct_data.bpi = bpi;
+ dev_priv->gct_data.pt =
+ ((struct mrst_gct_v1 *)pGCT)->PD.PanelType;
+ memcpy(&dev_priv->gct_data.DTD,
+ &((struct mrst_gct_v1 *)pGCT)->panel[bpi].DTD,
+ sizeof(struct mrst_timing_info));
+ dev_priv->gct_data.Panel_Port_Control =
+ ((struct mrst_gct_v1 *)pGCT)->panel[bpi].Panel_Port_Control;
+ dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+ ((struct mrst_gct_v1 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+ break;
+ case 1:
+ vbt->mrst_gct = NULL;
+ vbt->mrst_gct = \
+ ioremap(platform_config_address + sizeof(*vbt) - 4,
+ vbt->size - sizeof(*vbt) + 4);
+ pGCT = vbt->mrst_gct;
+ bpi = ((struct mrst_gct_v2 *)pGCT)->PD.BootPanelIndex;
+ dev_priv->gct_data.bpi = bpi;
+ dev_priv->gct_data.pt =
+ ((struct mrst_gct_v2 *)pGCT)->PD.PanelType;
+ memcpy(&dev_priv->gct_data.DTD,
+ &((struct mrst_gct_v2 *)pGCT)->panel[bpi].DTD,
+ sizeof(struct mrst_timing_info));
+ dev_priv->gct_data.Panel_Port_Control =
+ ((struct mrst_gct_v2 *)pGCT)->panel[bpi].Panel_Port_Control;
+ dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+ ((struct mrst_gct_v2 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+ break;
+ case 0x10:
+ /*header definition changed from rev 01 (v2) to rev 10h. */
+ /*so, some values have changed location*/
+ new_size = vbt->checksum; /*checksum contains lo size byte*/
+ /*LSB of mrst_gct contains hi size byte*/
+ new_size |= ((0xff & (unsigned int)vbt->mrst_gct)) << 8;
+
+ vbt->checksum = vbt->size; /*size contains the checksum*/
+ if (new_size > 0xff)
+ vbt->size = 0xff; /*restrict size to 255*/
+ else
+ vbt->size = new_size;
+
+ /* number of descriptors defined in the GCT */
+ number_desc = ((0xff00 & (unsigned int)vbt->mrst_gct)) >> 8;
+ bpi = ((0xff0000 & (unsigned int)vbt->mrst_gct)) >> 16;
+ vbt->mrst_gct = NULL;
+ vbt->mrst_gct = \
+ ioremap(platform_config_address + GCT_R10_HEADER_SIZE,
+ GCT_R10_DISPLAY_DESC_SIZE * number_desc);
+ pGCT = vbt->mrst_gct;
+ pGCT = (u8 *)pGCT + (bpi*GCT_R10_DISPLAY_DESC_SIZE);
+ dev_priv->gct_data.bpi = bpi; /*save boot panel id*/
+
+ /*copy the GCT display timings into a temp structure*/
+ memcpy(&ti, pGCT, sizeof(struct gct_r10_timing_info));
+
+ /*now copy the temp struct into the dev_priv->gct_data*/
+ 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;
+
+ /*mov the MIPI_Display_Descriptor data from GCT to dev priv*/
+ dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+ *((u8 *)pGCT + 0x0d);
+ dev_priv->gct_data.Panel_MIPI_Display_Descriptor |=
+ (*((u8 *)pGCT + 0x0e)) << 8;
+ break;
+ default:
+ printk(KERN_ERR "Unknown revision of GCT!\n");
+ vbt->size = 0;
+ }
+}
+
static void psb_get_core_freq(struct drm_device *dev)
{
uint32_t clock;
@@ -358,31 +562,6 @@ static void psb_get_core_freq(struct drm_device *dev)
}
}
-#define FB_REG06 0xD0810600
-#define FB_TOPAZ_DISABLE BIT0
-#define FB_MIPI_DISABLE BIT11
-#define FB_REG09 0xD0810900
-#define FB_SKU_MASK (BIT12|BIT13|BIT14)
-#define FB_SKU_SHIFT 12
-#define FB_SKU_100 0
-#define FB_SKU_100L 1
-#define FB_SKU_83 2
-
-bool 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));
-
- /*get the revison ID, B0:D2:F0;0x08 */
- 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);
- PSB_DEBUG_ENTRY("platform_rev_id is %x\n",
- dev_priv->platform_rev_id);
-
- return true;
-}
-
static int psb_do_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv =
@@ -634,9 +813,15 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
if (!dev_priv->sgx_reg)
goto out_err;
- psb_get_core_freq(dev);
- psb_intel_opregion_init(dev);
- psb_intel_init_bios(dev);
+ if (IS_MRST(dev)) {
+ mrst_get_fuse_settings(dev);
+ mrst_get_vbt_data(dev_priv);
+ mid_get_pci_revID(dev_priv);
+ } else {
+ psb_get_core_freq(dev);
+ psb_intel_opregion_init(dev);
+ psb_intel_init_bios(dev);
+ }
PSB_DEBUG_INIT("Init TTM fence and BO driver\n");
--
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