This patch will add support for the Geode GX1/CS5530 VGA feature. It's able

to set up one of five screen resolutions (sorry no autodetection at runtime,
resolution is selected at buildtime) and displays a graphic in the right
bottom corner (splash screen).

Signed-off-by: Juergen Beisert <juergen127@kreuzholzen.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>




git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2827 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

3 files changed, 763 insertions, 0 deletions

diff --git a/src/southbridge/amd/cs5530/Config.lb b/src/southbridge/amd/cs5530/Config.lb
index e50cde5f5a..5a98ee62a2 100644
--- a/src/southbridge/amd/cs5530/Config.lb
+++ b/src/southbridge/amd/cs5530/Config.lb
@@ -22,3 +22,4 @@ config chip.h
 driver cs5530.o
 driver cs5530_isa.o
 driver cs5530_ide.o
+driver cs5530_vga.o
diff --git a/src/southbridge/amd/cs5530/bitmap.c b/src/southbridge/amd/cs5530/bitmap.c
new file mode 100644
index 0000000000..0e5e02c572
--- /dev/null
+++ b/src/southbridge/amd/cs5530/bitmap.c
@@ -0,0 +1,304 @@
+/* do not edit
+This is an image of size 51 x 60 with 234 colours */
+static const int width=51;
+static const int height=60;
+static const int colours=234;
+static const unsigned long colour_map[234] = {
+0x00000000, /* 0 */
+0x00000001, /* 1 */
+0x00000020, /* 2 */
+0x00000021, /* 3 */
+0x00000040, /* 4 */
+0x00000800, /* 5 */
+0x00000821, /* 6 */
+0x00000840, /* 7 */
+0x00000841, /* 8 */
+0x00000861, /* 9 */
+0x00001040, /* 10 */
+0x00001081, /* 11 */
+0x00001082, /* 12 */
+0x00001083, /* 13 */
+0x000010A2, /* 14 */
+0x00001881, /* 15 */
+0x000018C3, /* 16 */
+0x000018E3, /* 17 */
+0x000020A0, /* 18 */
+0x000020E4, /* 19 */
+0x00002103, /* 20 */
+0x00002104, /* 21 */
+0x00002124, /* 22 */
+0x00002921, /* 23 */
+0x00002945, /* 24 */
+0x00002946, /* 25 */
+0x00002965, /* 26 */
+0x00002966, /* 27 */
+0x00003186, /* 28 */
+0x000031A6, /* 29 */
+0x00003942, /* 30 */
+0x00003982, /* 31 */
+0x000039A7, /* 32 */
+0x000039C7, /* 33 */
+0x000039E7, /* 34 */
+0x000039E8, /* 35 */
+0x000041A2, /* 36 */
+0x000041C2, /* 37 */
+0x000041E7, /* 38 */
+0x00004207, /* 39 */
+0x00004208, /* 40 */
+0x00004228, /* 41 */
+0x00004229, /* 42 */
+0x000049E3, /* 43 */
+0x000049E5, /* 44 */
+0x00004A46, /* 45 */
+0x00004A47, /* 46 */
+0x00004A48, /* 47 */
+0x00004A49, /* 48 */
+0x00004A69, /* 49 */
+0x00004A8A, /* 50 */
+0x00005228, /* 51 */
+0x00005247, /* 52 */
+0x00005287, /* 53 */
+0x0000528A, /* 54 */
+0x000052AA, /* 55 */
+0x00005A21, /* 56 */
+0x00005A43, /* 57 */
+0x00005A63, /* 58 */
+0x00005AA9, /* 59 */
+0x00005AAA, /* 60 */
+0x00005ACA, /* 61 */
+0x00005ACB, /* 62 */
+0x00005AEB, /* 63 */
+0x00006222, /* 64 */
+0x00006261, /* 65 */
+0x000062A8, /* 66 */
+0x000062C7, /* 67 */
+0x000062E8, /* 68 */
+0x000062EB, /* 69 */
+0x000062EC, /* 70 */
+0x0000630B, /* 71 */
+0x0000630C, /* 72 */
+0x0000632C, /* 73 */
+0x00006A41, /* 74 */
+0x00006B05, /* 75 */
+0x00006B28, /* 76 */
+0x00006B29, /* 77 */
+0x00006B2D, /* 78 */
+0x00006B4D, /* 79 */
+0x00006B6D, /* 80 */
+0x00006B6E, /* 81 */
+0x00006B8D, /* 82 */
+0x000072A2, /* 83 */
+0x000072E2, /* 84 */
+0x000072E5, /* 85 */
+0x00007306, /* 86 */
+0x00007329, /* 87 */
+0x0000738E, /* 88 */
+0x000073AE, /* 89 */
+0x000073AF, /* 90 */
+0x000073CF, /* 91 */
+0x00007B28, /* 92 */
+0x00007B44, /* 93 */
+0x00007B48, /* 94 */
+0x00007B67, /* 95 */
+0x00007B69, /* 96 */
+0x00007BCE, /* 97 */
+0x00007BCF, /* 98 */
+0x00007BEF, /* 99 */
+0x00008323, /* 100 */
+0x00008345, /* 101 */
+0x000083AA, /* 102 */
+0x00008410, /* 103 */
+0x00008430, /* 104 */
+0x00008B02, /* 105 */
+0x00008B63, /* 106 */
+0x00008B83, /* 107 */
+0x00008B84, /* 108 */
+0x00008BA6, /* 109 */
+0x00008BC7, /* 110 */
+0x00008BEA, /* 111 */
+0x00008BEE, /* 112 */
+0x00008C51, /* 113 */
+0x00008C71, /* 114 */
+0x00009362, /* 115 */
+0x00009363, /* 116 */
+0x00009383, /* 117 */
+0x000093C5, /* 118 */
+0x000093C7, /* 119 */
+0x00009405, /* 120 */
+0x00009492, /* 121 */
+0x00009493, /* 122 */
+0x000094B2, /* 123 */
+0x00009B82, /* 124 */
+0x00009BC3, /* 125 */
+0x00009C2D, /* 126 */
+0x00009CB3, /* 127 */
+0x00009CD3, /* 128 */
+0x00009CF3, /* 129 */
+0x00009CF4, /* 130 */
+0x00009D14, /* 131 */
+0x0000A401, /* 132 */
+0x0000A403, /* 133 */
+0x0000A423, /* 134 */
+0x0000A44C, /* 135 */
+0x0000A489, /* 136 */
+0x0000A4F1, /* 137 */
+0x0000A514, /* 138 */
+0x0000A533, /* 139 */
+0x0000A534, /* 140 */
+0x0000ABE1, /* 141 */
+0x0000AC22, /* 142 */
+0x0000AC24, /* 143 */
+0x0000AC42, /* 144 */
+0x0000AC44, /* 145 */
+0x0000AC48, /* 146 */
+0x0000AC69, /* 147 */
+0x0000AC8A, /* 148 */
+0x0000ACEE, /* 149 */
+0x0000AD0A, /* 150 */
+0x0000AD2E, /* 151 */
+0x0000AD55, /* 152 */
+0x0000AD75, /* 153 */
+0x0000AD76, /* 154 */
+0x0000B423, /* 155 */
+0x0000B441, /* 156 */
+0x0000B444, /* 157 */
+0x0000B464, /* 158 */
+0x0000B484, /* 159 */
+0x0000B4A3, /* 160 */
+0x0000B4C4, /* 161 */
+0x0000B533, /* 162 */
+0x0000B596, /* 163 */
+0x0000B5B6, /* 164 */
+0x0000BC65, /* 165 */
+0x0000BC83, /* 166 */
+0x0000BC84, /* 167 */
+0x0000BCC9, /* 168 */
+0x0000BD03, /* 169 */
+0x0000BD2A, /* 170 */
+0x0000BD54, /* 171 */
+0x0000BD97, /* 172 */
+0x0000BDB5, /* 173 */
+0x0000BDD7, /* 174 */
+0x0000BDD8, /* 175 */
+0x0000BDF7, /* 176 */
+0x0000BE19, /* 177 */
+0x0000C4A2, /* 178 */
+0x0000C4C2, /* 179 */
+0x0000C4C3, /* 180 */
+0x0000C5CE, /* 181 */
+0x0000C5F9, /* 182 */
+0x0000C618, /* 183 */
+0x0000C61A, /* 184 */
+0x0000C638, /* 185 */
+0x0000CCE2, /* 186 */
+0x0000CD03, /* 187 */
+0x0000CD43, /* 188 */
+0x0000CD61, /* 189 */
+0x0000CD88, /* 190 */
+0x0000CE39, /* 191 */
+0x0000CE58, /* 192 */
+0x0000CE59, /* 193 */
+0x0000CE79, /* 194 */
+0x0000CE7A, /* 195 */
+0x0000CE7B, /* 196 */
+0x0000CE9A, /* 197 */
+0x0000D502, /* 198 */
+0x0000D522, /* 199 */
+0x0000D62C, /* 200 */
+0x0000D69A, /* 201 */
+0x0000D69B, /* 202 */
+0x0000D6BA, /* 203 */
+0x0000DD23, /* 204 */
+0x0000DD41, /* 205 */
+0x0000DD81, /* 206 */
+0x0000DDA1, /* 207 */
+0x0000DDA4, /* 208 */
+0x0000DE9C, /* 209 */
+0x0000DEDB, /* 210 */
+0x0000DEFB, /* 211 */
+0x0000DEFD, /* 212 */
+0x0000E5A2, /* 213 */
+0x0000E71C, /* 214 */
+0x0000E73C, /* 215 */
+0x0000EDC1, /* 216 */
+0x0000EF3E, /* 217 */
+0x0000EF5D, /* 218 */
+0x0000EF7D, /* 219 */
+0x0000EF7E, /* 220 */
+0x0000EF7F, /* 221 */
+0x0000F79D, /* 222 */
+0x0000F79E, /* 223 */
+0x0000F7BE, /* 224 */
+0x0000F7BF, /* 225 */
+0x0000F7DE, /* 226 */
+0x0000FFB8, /* 227 */
+0x0000FFBF, /* 228 */
+0x0000FFDD, /* 229 */
+0x0000FFDE, /* 230 */
+0x0000FFDF, /* 231 */
+0x0000FFFB, /* 232 */
+0x0000FFFF, /* 233 */
+};
+
+static const unsigned char bitmap[3060] = {
+0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE7,0xA4,0xD3,0xE9,0xDF,0xDF,0x8C,0xE7,0xE0,0xDF,0xB0,0xDB,0xE7,0xE0,0xE0,0xC2,0xE7,0xE7,0xE0,0xD3,0xE9,0xE9,0xE0,0xDF,0xDF,0xE7,0xE7,0xD6,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0xE9,0xE0,0xDB,0xDA,0xDF,0xE9,0x67,0xA3,0xD7,0xDA,0xE9,0x71,0xD7,0xA3,0xE9,0xD6,0xD7,0xD2,0xD6,0xE9,0xC1,0xDF,0x68,0xE9,0xDA,0xE0,0x99,0xAE,0xE9,0xD7,0xB9,0xE9,0xA3,0xDF,0xE0,0xE7,0xE7,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0xD6,0x71,0x67,0x63,0x72,0xE9,0x31,0x4F,0x58,0x99,0xD6,0x1D,0x67,0x50,0xB7,0x67,0x36,0x4F,0x99,0xD6,0x28,0x49,0x3F,0xDB,0x71,0x48,0x48,0x80,0xDB,0x37,0x48,0xE9,0x8C,0x58,0x68,0xDA,0xDB,0xDF,0xE0,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0x79,0x63,0x63,0x58,0x29,0x7B,0x1A,0x28,0x30,0x30,0x63,0x0C,0x50,0x10,0x50,0x28,0x21,0x1D,0x31,0x62,0x11,0x36,0x10,0x68,0x30,0x30,0x16,0x3E,0x68,0x15,0x29,0x8C,0x3E,0x11,0x36,0x4F,0xC2,0xD7,0xDA,0xDF,0xE7,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE7,0x62,0x62,0x63,0x63,0x22,0x37,0x16,0x28,0x36,0x1C,0x28,0x0C,0x49,0x15,0x29,0x16,0x21,0x1D,0x22,0x22,0x0C,0x31,0x11,0x29,0x15,0x21,0x15,0x22,0x22,0x10,0x22,0x48,0x1D,0x08,0x3E,0x29,0x3E,0xB9,0xD2,0xD7,0xDB,0xE0,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xDB,0x62,0x4F,0x4F,0x3F,0x30,0x21,0x15,0x28,0x31,0x22,0x1A,0x0C,0x50,0x18,0x1D,0x0E,0x29,0x1D,0x22,0x16,0x10,0x37,0x1D,0x1D,0x0C,0x28,0x1A,0x29,0x1A,0x18,0x21,0x21,0x16,0x0E,0x3E,0x29,0x30,0x48,0xB0,0xC9,0xD3,0xDB,0xE0,0xE7,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE7,0xA3,0x72,0x21,0x15,0x31,0x36,0x30,0x49,0x36,0x3F,0x29,0x30,0x4F,0x29,0x36,0x21,0x3F,0x28,0x30,0x1A,0x28,0x3E,0x22,0x18,0x16,0x3E,0x1D,0x21,0x11,0x22,0x21,0x10,0x11,0x37,0x11,0x15,0x28,0x48,0x80,0xA4,0xC1,0xD3,0xDA,0xE0,0xE7,0xE9,0xE9,0xE9,
+0xE9,0xD3,0xE9,0xE9,0xE9,0xB7,0x59,0x22,0x58,0x48,0x48,0x48,0x37,0x37,0x3E,0x36,0x36,0x36,0x36,0x37,0x31,0x36,0x36,0x37,0x36,0x30,0x29,0x31,0x36,0x30,0x31,0x31,0x31,0x30,0x30,0x37,0x15,0x15,0xC1,0xE9,0xE9,0x8A,0x59,0x99,0xC1,0xD3,0xDB,0xE0,0xE9,0xE9,0xE9,
+0xE9,0x68,0x50,0x1C,0x16,0x31,0x30,0x1A,0x58,0x49,0x3F,0x3E,0x3E,0x37,0x36,0x37,0x31,0x30,0x30,0x31,0x36,0x30,0x29,0x29,0x29,0x29,0x28,0x28,0x29,0x22,0x28,0x22,0x29,0x29,0x30,0x31,0x15,0x1C,0x59,0x50,0x36,0x36,0x49,0x7B,0xA3,0xC2,0xD6,0xDB,0xE7,0xE9,0xE9,
+0xE9,0xA4,0x50,0x58,0x36,0x29,0x37,0x4F,0x50,0x3F,0x3E,0x31,0x31,0x31,0x36,0x36,0x36,0x31,0x30,0x30,0x29,0x30,0x30,0x29,0x28,0x22,0x28,0x28,0x22,0x28,0x22,0x21,0x22,0x22,0x22,0x36,0x28,0x29,0x1A,0x15,0x0C,0x1A,0x37,0x63,0x80,0xAE,0xC9,0xD7,0xDF,0xE7,0xE9,
+0xE9,0xE7,0xC9,0x80,0x28,0x16,0x15,0x15,0x49,0x37,0x37,0x37,0x30,0x30,0x29,0x30,0x31,0x30,0x29,0x29,0x28,0x36,0x28,0x28,0x48,0x29,0x21,0x22,0x28,0x21,0x21,0x22,0x1D,0x22,0x22,0x30,0x21,0x16,0x1C,0x21,0x31,0x31,0x37,0x4F,0x68,0x8C,0xB7,0xD3,0xDB,0xE7,0xE9,
+0xE9,0xC2,0xE9,0xDA,0xB0,0x4F,0x1D,0x1D,0x4F,0x37,0x31,0x36,0x36,0x30,0x30,0x30,0x31,0x29,0x30,0x28,0x36,0x81,0x50,0x15,0x0C,0x31,0x28,0x21,0x22,0x22,0x22,0x21,0x22,0x21,0x1D,0x28,0x0E,0x11,0x81,0xDF,0xE0,0x80,0x36,0x3E,0x59,0x7B,0xA4,0xC9,0xDA,0xE0,0xE9,
+0xE7,0x72,0x67,0x3E,0x37,0x36,0x16,0x28,0x49,0x37,0x36,0x30,0x30,0x30,0x29,0x30,0x29,0x30,0x22,0x28,0x49,0xB7,0xB9,0x99,0x29,0x0E,0x31,0x28,0x1D,0x21,0x22,0x1D,0x1D,0x22,0x21,0x28,0x11,0x22,0x8C,0x98,0x8A,0x4F,0x30,0x36,0x4F,0x71,0x99,0xC2,0xD7,0xE0,0xE7,
+0xDF,0x80,0x3E,0x18,0x10,0x21,0x31,0x3F,0x48,0x36,0x36,0x30,0x30,0x29,0x30,0x30,0x30,0x29,0x28,0x28,0x50,0xA4,0x8C,0x98,0xA4,0x3E,0x10,0x31,0x22,0x22,0x1D,0x1D,0x22,0x21,0x22,0x22,0x18,0x30,0x10,0x09,0x08,0x0C,0x1D,0x30,0x49,0x68,0x98,0xC1,0xD6,0xDF,0xE7,
+0xE9,0xE7,0xB0,0x50,0x22,0x28,0x22,0x28,0x3E,0x36,0x31,0x30,0x30,0x30,0x29,0x29,0x29,0x28,0x29,0x28,0x4F,0x80,0x48,0x48,0x63,0x98,0x3F,0x16,0x29,0x21,0x1D,0x21,0x21,0x1D,0x21,0x22,0x1D,0x21,0x29,0x31,0x1D,0x1A,0x22,0x30,0x48,0x67,0x8C,0xB9,0xD6,0xDF,0xE7,
+0xDF,0xD3,0xE9,0xD7,0x81,0x31,0x10,0x16,0x3E,0x36,0x31,0x30,0x29,0x30,0x29,0x29,0x28,0x28,0x28,0x28,0x37,0x67,0x48,0x48,0x47,0x50,0x7B,0x36,0x1A,0x30,0x1D,0x1D,0x1D,0x21,0x21,0x21,0x10,0x15,0x63,0xC1,0xC1,0x62,0x31,0x30,0x48,0x67,0x8C,0xB9,0xD6,0xDF,0xE7,
+0xE0,0x8A,0xAE,0x67,0x4F,0x37,0x18,0x22,0x3F,0x36,0x30,0x30,0x29,0x22,0x29,0x29,0x22,0x28,0x28,0x21,0x29,0x61,0x47,0x47,0x48,0x48,0x4F,0x79,0x31,0x22,0x37,0x1D,0x1D,0x1D,0x1C,0x21,0x15,0x36,0xC1,0xD6,0xB7,0x59,0x28,0x30,0x48,0x63,0x8A,0xB9,0xD6,0xDF,0xE7,
+0xD2,0x59,0x36,0x10,0x0C,0x1C,0x15,0x29,0x3F,0x30,0x36,0x30,0x30,0x28,0x22,0x1D,0x28,0x31,0x22,0x21,0x22,0x3E,0x48,0x48,0x48,0x48,0x48,0x50,0x68,0x30,0x30,0x28,0x1D,0x1C,0x21,0x1D,0x11,0x1C,0x0C,0x00,0x02,0x09,0x21,0x30,0x48,0x63,0x8A,0xB9,0xD6,0xDF,0xE7,
+0xE9,0xDB,0x80,0x4F,0x30,0x3E,0x48,0x49,0x36,0x30,0x31,0x30,0x29,0x22,0x2E,0x2D,0x4C,0x6D,0x76,0x94,0x4D,0x31,0x4E,0x48,0x47,0x48,0x48,0x48,0x50,0x62,0x30,0x37,0x1D,0x1D,0x1D,0x1D,0x21,0x29,0x22,0x21,0x1C,0x16,0x21,0x30,0x48,0x63,0x8C,0xB9,0xD6,0xDF,0xE7,
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+0xE9,0xE9,0xE9,0xE9,0xE9,0xE7,0xE0,0xDF,0xDA,0xD7,0xD3,0xCB,0xC9,0xC2,0xC2,0xC2,0xC2,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xB9,0xB9,0xB9,0xB9,0xB9,0xB9,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC2,0xC2,0xCB,0xD3,0xD7,0xDA,0xDF,0xE0,0xE7,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE7,0xE0,0xDF,0xDB,0xDA,0xDA,0xD7,0xD7,0xD7,0xD7,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD6,0xD7,0xD7,0xD7,0xDA,0xDB,0xDF,0xE0,0xE7,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE7,0xE7,0xE0,0xE0,0xE0,0xE0,0xE0,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xE0,0xE0,0xE7,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE7,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,0xE9,
+};
diff --git a/src/southbridge/amd/cs5530/cs5530_vga.c b/src/southbridge/amd/cs5530/cs5530_vga.c
new file mode 100644
index 0000000000..cfeca824ef
--- /dev/null
+++ b/src/southbridge/amd/cs5530/cs5530_vga.c
@@ -0,0 +1,458 @@
+/*
+ * Copyright (C) 2007 Juergen Beisert <juergen@kreuzholzen.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that 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
+ *
+ * Purpose:
+ * Activate the VGA feature in a Geode GX1 based system with one of five
+ * possible VESA modes: VGA, SVGA, XGA, 4:3 SXGA and 5:4 SXGA. Also it is
+ * prepared to display a splash screen.
+ */
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <device/pci_ids.h>
+#include <console/console.h>
+#include <cpu/amd/gx1def.h>
+#include <delay.h>
+
+#if CONFIG_GX1_VIDEO == 1
+/*
+ * Some register descriptions that are no listed in cpu/amd/gx1def.h
+ */
+#define CS5530_DOT_CLK_CONFIG	0x0024
+#define CS5530_DISPLAY_CONFIG	0x0004
+
+#define DC_FB_ST_OFFSET		0x8310	/* framebuffer start offset */
+#define DC_CB_ST_OFFSET		0x8314	/* compression start offset */
+#define DC_CURS_ST_OFFSET	0x8318	/* cursor start offset */
+#define DC_VID_ST_OFFSET	0x8320	/* video start offset */
+#define DC_LINE_DELTA		0x8324	/* fb and cb skip counts */
+#define DC_BUF_SIZE		0x8328	/* fb and cb line size */
+#define DC_H_TIMING_1		0x8330	/* horizontal timing... */
+#define DC_H_TIMING_2		0x8334
+#define DC_H_TIMING_3		0x8338
+#define DC_FP_H_TIMING		0x833C
+#define DC_V_TIMING_1		0x8340	/* vertical timing... */
+#define DC_V_TIMING_2		0x8344
+#define DC_V_TIMING_3		0x8348
+#define DC_FP_V_TIMING		0x834C
+#define DC_TIMING_CFG		0x8308
+#define DC_OUTPUT_CFG		0x830C
+
+/*
+ * what colour depth should be used as default (in bpp)
+ * Note: Currently no other value than 16 is supported
+ */
+#define COLOUR_DEPTH 16
+
+/*
+ * Support for a few basic video modes
+ * Note: all modes only for CRT. The flatpanel feature is
+ * not supported here (due to the lack of hardware to test)
+ */
+struct video_mode {
+	int pixel_clock;		/*<< pixel clock in Hz */
+	unsigned long pll_value;	/*<< pll register value for this clock */
+
+	int visible_pixel;
+	int hsync_start;
+	int hsync_end;
+	int line_length;
+
+	int visible_lines;
+	int vsync_start;
+	int vsync_end;
+	int picture_length;
+
+	int sync_pol;		/*<< 0: low, 1: high, bit 0 hsync, bit 1 vsync */
+};
+
+/*
+ * values for .sync_pol
+ */
+#define HSYNC_HIGH_POL 0
+#define HSYNC_LOW_POL 1
+#define VSYNC_HIGH_POL 0
+#define VSYNC_LOW_POL 2
+
+/* ModeLine "640x480" 31.5 640 664 704 832 480 489 491 520 -hsync -vsync */
+static const struct video_mode mode_640x480 = {
+	/*
+	 * 640x480 @ 72Hz hsync: 37.9kHz
+	 * VESA standard mode for classic 4:3 monitors
+	 */
+	.pixel_clock = 31500000,
+	.pll_value = 0x33915801,
+
+	.visible_pixel = 640,
+	.hsync_start = 664,
+	.hsync_end = 704,	/* 1.27 us sync length */
+	.line_length = 832,	/* 26.39us */
+
+	.visible_lines = 480,
+	.vsync_start = 489,
+	.vsync_end = 491,
+	.picture_length = 520, /* 13.89ms */
+
+	.sync_pol = HSYNC_LOW_POL | VSYNC_LOW_POL
+};
+
+/* ModeLine "800x600" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync */
+static const struct video_mode mode_800x600 = {
+	/*
+	 * 800x600 @ 72Hz hsync: 48.1kHz
+	 * VESA standard mode for classic 4:3 monitors
+	 */
+	.pixel_clock = 50000000,
+	.pll_value = 0x23088801,
+
+	.visible_pixel = 800,
+	.hsync_start = 856,
+	.hsync_end = 976,
+	.line_length = 1040, /* 20.8us */
+
+	.visible_lines = 600,
+	.vsync_start = 637,
+	.vsync_end = 643,
+	.picture_length = 666, /* 13.89ms */
+
+	.sync_pol = HSYNC_HIGH_POL | VSYNC_HIGH_POL
+};
+
+/* ModeLine "1024x768" 75.0 1024 1048 1184 1328 768 771 777 806 -hsync -vsync */
+static const struct video_mode mode_1024x768 = {
+	/*
+	 * 1024x768 @ 70Hz (VESA) hsync: 56.5kHz
+	 * Standard mode for classic 4:3 monitors
+	 */
+	.pixel_clock = 75000000,
+	.pll_value = 0x37E22801,
+
+	.visible_pixel = 1024,
+	.hsync_start = 1048,
+	.hsync_end = 1184,
+	.line_length = 1328,	/* 17.7us */
+
+	.visible_lines = 768,
+	.vsync_start = 771,
+	.vsync_end = 777,
+	.picture_length = 806,	/* 14.3us */
+
+	.sync_pol = HSYNC_LOW_POL | VSYNC_LOW_POL
+};
+
+/* ModeLine "1280x960" 108.0 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync */
+static const struct video_mode mode_1280x960 = {
+	/*
+	 * 1280x960 @ 60Hz (VESA) hsync: 60.0kHz
+	 * Mode for classic 4:3 monitors
+	 */
+	.pixel_clock = 108000000,
+	.pll_value = 0x2710C805,
+
+	.visible_pixel = 1280,
+	.hsync_start = 1376,
+	.hsync_end = 1488,
+	.line_length = 1800,	/* 16.67us */
+
+	.visible_lines = 960,
+	.vsync_start = 961,
+	.vsync_end = 964,
+	.picture_length = 1000,	/* 16.67ms */
+
+	.sync_pol = HSYNC_HIGH_POL | VSYNC_HIGH_POL
+};
+
+/* ModeLine "1280x1024" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync */
+static const struct video_mode mode_1280x1024 = {
+	/*
+	 * 1280x1024 @ 60Hz (VESA) hsync: 64.0kHz
+	 * Mode for modern 5:4 flat screens
+	 */
+	.pixel_clock = 108000000,
+	.pll_value = 0x2710C805,
+
+	.visible_pixel = 1280,
+	.hsync_start = 1328,
+	.hsync_end = 1440,
+	.line_length = 1688,	/* 15.6us */
+
+	.visible_lines = 1024,
+	.vsync_start = 1025,
+	.vsync_end = 1028,
+	.picture_length = 1066,
+
+	.sync_pol = HSYNC_HIGH_POL | VSYNC_HIGH_POL
+};
+
+/*
+ * a few supported common modes
+ */
+static const struct video_mode *modes[] = {
+	&mode_640x480,	/* CONFIG_GX1_VIDEOMODE = 0 */
+	&mode_800x600,	/* CONFIG_GX1_VIDEOMODE = 1 */
+	&mode_1024x768,	/* CONFIG_GX1_VIDEOMODE = 2 */
+	&mode_1280x960,	/* CONFIG_GX1_VIDEOMODE = 3 */
+	&mode_1280x1024	/* CONFIG_GX1_VIDEOMODE = 4 */
+};
+
+/* make a sanity check at buildtime */
+#if CONFIG_GX1_VIDEOMODE > 4
+# error Requested video mode is unknown!
+#endif
+
+/*
+ * Setup the pixel PLL in the companion chip
+ * base: register's base address
+ * pll_val: pll register value to be set
+ */
+static void cs5530_set_clock_frequency(void *io_base,unsigned long pll_val)
+{
+	unsigned long reg;
+
+	/* disable the PLL first, reset and power it down */
+	reg = readl(io_base+CS5530_DOT_CLK_CONFIG) & ~0x20;
+	reg |= 0x80000100;
+	writel(reg, io_base+CS5530_DOT_CLK_CONFIG);
+
+	/* write the new PLL setting */
+	reg |= (pll_val & ~0x80000920);
+	writel(reg, io_base+CS5530_DOT_CLK_CONFIG);
+
+	mdelay(1);	/* wait for control voltage to be 0V */
+
+	/* enable the PLL */
+	reg |= 0x00000800;
+	writel(reg, io_base+CS5530_DOT_CLK_CONFIG);
+
+	/* clear reset */
+	reg &= ~0x80000000;
+	writel(reg, io_base+CS5530_DOT_CLK_CONFIG);
+
+	/* clear bypass */
+	reg &= ~0x00000100;
+	writel(reg, io_base+CS5530_DOT_CLK_CONFIG);
+}
+
+/*
+ * Setup memory layout
+ * gx_base: GX register area
+ * mode: Data about the video mode to setup
+ *
+ * This routine assumes unlocked DC registers. Using compressed buffer
+ * is not supported! (makes more sense later, but not while booting)
+ */
+static void dc_setup_layout(void *gx_base,const struct video_mode *mode)
+{
+	unsigned long base = 0x00000000;
+
+	writel(base, gx_base + DC_FB_ST_OFFSET);
+
+	base += (COLOUR_DEPTH>>3) * mode->visible_pixel * mode->visible_lines;
+
+	writel(base, gx_base + DC_CB_ST_OFFSET);
+	writel(base, gx_base + DC_CURS_ST_OFFSET);
+	writel(base, gx_base + DC_VID_ST_OFFSET);
+	writel(((COLOUR_DEPTH>>3) * mode->visible_pixel) >> 2, gx_base + DC_LINE_DELTA);
+	writel(((COLOUR_DEPTH>>3) * mode->visible_pixel) >> 3, gx_base + DC_BUF_SIZE);
+}
+
+/*
+ * Setup the HSYNC/VSYNC, active video timing
+ * gx_base: GX register area
+ * mode: Data about the video mode to setup
+ *
+ * This routine assumes unlocked DC registers
+ *
+ * |<------------------------- htotal ----------------------------->|
+ * |<------------ hactive -------------->|                          |
+ * |                       hblankstart-->|                          |
+ * |                                                    hblankend-->|
+ * |                                hsyncstart-->|                  |
+ * |                                           hsyncend-->|         |
+ * |#####################################___________________________| RGB data
+ * |______________________________________________---------_________| HSYNC
+ *
+ * |<------------------------- vtotal ----------------------------->|
+ * |<------------ vactive -------------->|                          |
+ * |                       vblankstart-->|                          |
+ * |                                                    vblankend-->|
+ * |                                vsyncstart-->|                  |
+ * |                                           vsyncend-->|         |
+ * |#####################################___________________________| line data
+ * |______________________________________________---------_________| YSYNC
+ */
+static void dc_setup_timing(void *gx_base,const struct video_mode *mode)
+{
+	unsigned long hactive, hblankstart, hsyncstart, hsyncend, hblankend, htotal;
+	unsigned long vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal;
+
+	hactive = mode->visible_pixel & 0x7FF;
+	hblankstart = hactive;
+	hsyncstart = mode->hsync_start & 0x7FF;
+	hsyncend =  mode->hsync_end & 0x7FF;
+	hblankend = mode->line_length & 0x7FF;
+	htotal = hblankend;
+
+	vactive = mode->visible_lines & 0x7FF;
+	vblankstart = vactive;
+	vsyncstart = mode->vsync_start & 0x7FF;
+	vsyncend =  mode->vsync_end & 0x7FF;
+	vblankend = mode->picture_length & 0x7FF;
+	vtotal = vblankend;
+
+	/* row description */
+	writel((hactive - 1) | ((htotal - 1) << 16), gx_base + DC_H_TIMING_1);
+	/* horizontal blank description */
+	writel((hblankstart - 1) | ((hblankend - 1) << 16), gx_base + DC_H_TIMING_2);
+	/* horizontal sync description */
+	writel((hsyncstart - 1) | ((hsyncend - 1) << 16), gx_base + DC_H_TIMING_3);
+	writel((hsyncstart - 1) | ((hsyncend - 1) << 16), gx_base + DC_FP_H_TIMING);
+
+	/* line description */
+	writel((vactive - 1) | ((vtotal - 1) << 16), gx_base + DC_V_TIMING_1);
+	/* vertical blank description */
+	writel((vblankstart - 1) | ((vblankend - 1) << 16), gx_base + DC_V_TIMING_2);
+	/* vertical sync description */
+	writel((vsyncstart - 1) | ((vsyncend - 1) << 16), gx_base + DC_V_TIMING_3);
+	writel((vsyncstart - 2) | ((vsyncend - 2) << 16), gx_base + DC_FP_V_TIMING);
+}
+
+/*
+ * Setup required internals to bring the mode up and running
+ * gx_base: GX register area
+ * mode: Data about the video mode to setup
+ */
+static void cs5530_activate_mode(void *gx_base, const struct video_mode *mode)
+{
+	writel(0x00000080, gx_base + DC_GENERAL_CFG);
+	mdelay(1);
+	dc_setup_layout(gx_base,mode);
+	dc_setup_timing(gx_base,mode);
+
+	writel(0x2000C581, gx_base + DC_GENERAL_CFG);
+	writel(0x0000002F, gx_base + DC_TIMING_CFG);
+	writel(0x00003004, gx_base + DC_OUTPUT_CFG);
+}
+
+/*
+ * Activate the current mode to be "visible" outside
+ * gx_base: GX register area
+ * mode: Data about the video mode to setup
+ */
+static void cs5530_activate_video(void *io_base, const struct video_mode *mode)
+{
+	u32 val;
+
+	val = mode->sync_pol;
+	val <<= 8;
+
+	writel(val | 0x0020002F, io_base + CS5530_DISPLAY_CONFIG);
+}
+
+/*
+ * This bitmap file must provide:
+ * int width: pixel count in one line
+ * int height: line count
+ * int colours: ount of used colour
+ * unsigned long colour_map[]: RGB 565 colours to be used
+ * unsigned char bitmap[]: index per pixel into colour_map[], width*height pixels
+ */
+#include "bitmap.c"
+
+/*
+ * show a boot splash screen in the right lower corner of the screen
+ * swidth: screen width in pixel
+ * sheight: screen height in lines
+ * pitch: line pitch in bytes
+ * base: screen base address
+ *
+ * This routine assumes we are using a 16 bit colour depth!
+ */
+static void show_boot_splash_16(u32 swidth,u32 sheight,u32 pitch,void *base)
+{
+	int word_count,i;
+	unsigned short *adr;
+	u32 xstart,ystart,x,y;
+	/*
+	 * fill the screen with the colour of the
+	 * left top pixel in the graphic
+	 */
+	word_count = pitch*sheight;
+	printk_debug("Clear Screen at %p, %d words\n",base,word_count);
+	adr = (unsigned short *) base;
+	for (i=0; i < word_count; i++, adr++)
+		*adr = colour_map[bitmap[0]];
+	printk_debug("Ready\n");
+
+	/*
+	 * paint the splash
+	 */
+	xstart=swidth-width;
+	ystart=sheight-height;
+	printk_debug("Start at %u,%u\n",xstart,ystart);
+	for (y=0;y<height;y++) {
+		adr=(unsigned short*)(base + pitch*(y+ystart)+2*xstart);
+		for (x=0;x<width;x++) {
+			*adr=(unsigned short)colour_map[(int)bitmap[x+y*width]];
+			adr++;
+		}
+	}
+}
+
+/*
+ * management part
+ */
+static void cs5530_vga_init(device_t dev)
+{
+	const struct video_mode *mode;
+	void *io_base, *gx_base;
+
+	io_base = (void*)pci_read_config32(dev,0x10);
+	gx_base = (void*)GX_BASE;
+	mode = modes[CONFIG_GX1_VIDEOMODE];
+
+	printk_debug("Setting up video mode %dx%d with %d Hz clock\n",
+		mode->visible_pixel, mode->visible_lines, mode->pixel_clock);
+
+	cs5530_set_clock_frequency(io_base,mode->pll_value);
+
+	writel(DC_UNLOCK_MAGIC, gx_base + DC_UNLOCK);
+
+	show_boot_splash_16(mode->visible_pixel, mode->visible_lines,
+		mode->visible_pixel*(COLOUR_DEPTH>>3),(void*)(GX_BASE+0x800000));
+
+	cs5530_activate_mode(gx_base,mode);
+
+	cs5530_activate_video(io_base, mode);
+	writel(0x00000000, gx_base + DC_UNLOCK);
+}
+
+static struct device_operations vga_ops = {
+	.read_resources   = pci_dev_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = cs5530_vga_init,
+	.enable           = NULL /* not required */
+};
+
+static struct pci_driver vga_pci_driver __pci_driver = {
+	.ops 	= &vga_ops,
+	.vendor = PCI_VENDOR_ID_CYRIX,
+	.device = PCI_DEVICE_ID_CYRIX_5530_VIDEO
+};
+
+#endif /* #if CONFIG_GX1_VIDEO == 1 */