drm/mgag200: Add support for a new G200eW3 chipset

- Added support for the new deviceID for G200eW3
- Added PLL algorithm for the G200eW3
- Added some initialization code for G200eW3

Signed-off-by: Mathieu Larouche <mathieu.larouche@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 9774599..b0af774 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -35,6 +35,7 @@ static const struct pci_device_id pciidlist[] = {
        { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
        { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
        { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
+       { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
        {0,}
 };
 

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index e9eea1d..912151c 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -180,6 +180,7 @@ enum mga_type {
        G200_EV,
        G200_EH,
        G200_ER,
+       G200_EW3,
 };
 
 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)

diff --git a/drivers/gpu/drm/mgag200/mgag200_i2c.c b/drivers/gpu/drm/mgag200/mgag200_i2c.c
index d3dcf54..10535e3 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_i2c.c
+++ b/drivers/gpu/drm/mgag200/mgag200_i2c.c
@@ -101,6 +101,7 @@ struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev)
        case G200_SE_B:
        case G200_EV:
        case G200_WB:
+       case G200_EW3:
                data = 1;
                clock = 2;
                break;

diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index c99c2cb..de06388 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -82,12 +82,19 @@ static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
        int orig;
        int test1, test2;
        int orig1, orig2;
+       unsigned int vram_size;
 
        /* Probe */
        orig = ioread16(mem);
        iowrite16(0, mem);
 
-       for (offset = 0x100000; offset < mdev->mc.vram_window; offset += 0x4000) {
+       vram_size = mdev->mc.vram_window;
+
+       if ((mdev->type == G200_EW3) && (vram_size >= 0x1000000)) {
+               vram_size = vram_size - 0x400000;
+       }
+
+       for (offset = 0x100000; offset < vram_size; offset += 0x4000) {
                orig1 = ioread8(mem + offset);
                orig2 = ioread8(mem + offset + 0x100);
 

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index cd75cff..8f7a3a1 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -159,7 +159,7 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
 {
        unsigned int vcomax, vcomin, pllreffreq;
        unsigned int delta, tmpdelta;
-       unsigned int testp, testm, testn;
+       unsigned int testp, testm, testn, testp2;
        unsigned int p, m, n;
        unsigned int computed;
        int i, j, tmpcount, vcount;
@@ -167,31 +167,71 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
        u8 tmp;
 
        m = n = p = 0;
-       vcomax = 550000;
-       vcomin = 150000;
-       pllreffreq = 48000;
 
        delta = 0xffffffff;
 
-       for (testp = 1; testp < 9; testp++) {
-               if (clock * testp > vcomax)
-                       continue;
-               if (clock * testp < vcomin)
-                       continue;
+       if (mdev->type == G200_EW3) {
+
+               vcomax = 800000;
+               vcomin = 400000;
+               pllreffreq = 25000;
+
+               for (testp = 1; testp < 8; testp++) {
+                       for (testp2 = 1; testp2 < 8; testp2++) {
+                               if (testp < testp2)
+                                       continue;
+                               if ((clock * testp * testp2) > vcomax)
+                                       continue;
+                               if ((clock * testp * testp2) < vcomin)
+                                       continue;
+                               for (testm = 1; testm < 26; testm++) {
+                                       for (testn = 32; testn < 2048 ; testn++) {
+                                               computed = (pllreffreq * testn) /
+                                                       (testm * testp * testp2);
+                                               if (computed > clock)
+                                                       tmpdelta = computed - clock;
+                                               else
+                                                       tmpdelta = clock - computed;
+                                               if (tmpdelta < delta) {
+                                                       delta = tmpdelta;
+                                                       m = ((testn & 0x100) >> 1) |
+                                                               (testm);
+                                                       n = (testn & 0xFF);
+                                                       p = ((testn & 0x600) >> 3) |
+                                                               (testp2 << 3) |
+                                                               (testp);
+                                               }
+                                       }
+                               }
+                       }
+               }
+       } else {
 
-               for (testm = 1; testm < 17; testm++) {
-                       for (testn = 1; testn < 151; testn++) {
-                               computed = (pllreffreq * testn) /
-                                       (testm * testp);
-                               if (computed > clock)
-                                       tmpdelta = computed - clock;
-                               else
-                                       tmpdelta = clock - computed;
-                               if (tmpdelta < delta) {
-                                       delta = tmpdelta;
-                                       n = testn - 1;
-                                       m = (testm - 1) | ((n >> 1) & 0x80);
-                                       p = testp - 1;
+               vcomax = 550000;
+               vcomin = 150000;
+               pllreffreq = 48000;
+
+               for (testp = 1; testp < 9; testp++) {
+                       if (clock * testp > vcomax)
+                               continue;
+                       if (clock * testp < vcomin)
+                               continue;
+
+                       for (testm = 1; testm < 17; testm++) {
+                               for (testn = 1; testn < 151; testn++) {
+                                       computed = (pllreffreq * testn) /
+                                               (testm * testp);
+                                       if (computed > clock)
+                                               tmpdelta = computed - clock;
+                                       else
+                                               tmpdelta = clock - computed;
+                                       if (tmpdelta < delta) {
+                                               delta = tmpdelta;
+                                               n = testn - 1;
+                                               m = (testm - 1) |
+                                                       ((n >> 1) & 0x80);
+                                               p = testp - 1;
+                                       }
                                }
                        }
                }
@@ -569,6 +609,7 @@ static int mga_crtc_set_plls(struct mga_device *mdev, long clock)
                return mga_g200se_set_plls(mdev, clock);
                break;
        case G200_WB:
+       case G200_EW3:
                return mga_g200wb_set_plls(mdev, clock);
                break;
        case G200_EV:
@@ -820,6 +861,7 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
                option2 = 0x00008000;
                break;
        case G200_WB:
+       case G200_EW3:
                dacvalue[MGA1064_VREF_CTL] = 0x07;
                option = 0x41049120;
                option2 = 0x0000b000;
@@ -875,7 +917,10 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
                if (IS_G200_SE(mdev) &&
                    ((i == 0x2c) || (i == 0x2d) || (i == 0x2e)))
                        continue;
-               if ((mdev->type == G200_EV || mdev->type == G200_WB || mdev->type == G200_EH) &&
+               if ((mdev->type == G200_EV ||
+                   mdev->type == G200_WB ||
+                   mdev->type == G200_EH ||
+                   mdev->type == G200_EW3) &&
                    (i >= 0x44) && (i <= 0x4e))
                        continue;
 
@@ -977,7 +1022,7 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
        else
                ext_vga[3] = ((1 << bppshift) - 1) | 0x80;
        ext_vga[4] = 0;
-       if (mdev->type == G200_WB)
+       if (mdev->type == G200_WB || mdev->type == G200_EW3)
                ext_vga[1] |= 0x88;
 
        /* Set pixel clocks */
@@ -993,6 +1038,9 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
        if (mdev->type == G200_ER)
                WREG_ECRT(0x24, 0x5);
 
+       if (mdev->type == G200_EW3)
+               WREG_ECRT(0x34, 0x5);
+
        if (mdev->type == G200_EV) {
                WREG_ECRT(6, 0);
        }
@@ -1205,7 +1253,7 @@ static void mga_crtc_prepare(struct drm_crtc *crtc)
                WREG_SEQ(1, tmp | 0x20);
        }
 
-       if (mdev->type == G200_WB)
+       if (mdev->type == G200_WB || mdev->type == G200_EW3)
                mga_g200wb_prepare(crtc);
 
        WREG_CRT(17, 0);
@@ -1222,7 +1270,7 @@ static void mga_crtc_commit(struct drm_crtc *crtc)
        const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
        u8 tmp;
 
-       if (mdev->type == G200_WB)
+       if (mdev->type == G200_WB || mdev->type == G200_EW3)
                mga_g200wb_commit(crtc);
 
        if (mdev->type == G200_SE_A || mdev->type == G200_SE_B) {