added pre-NV10 coldstart RAM size checks and correction code. Confirmed working OK on a TNT2-M64 with pins 5.1
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12600 a95241bf-73f2-0310-859d-f6bbb57e9c96
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@ -405,7 +405,7 @@ static status_t coldstart_card_516_up(uint8* rom, PinsTables tabs, uint16 ram_ta
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}
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/* This routine is complete, and is used for pre-NV10 cards. It's tested on a Elsa
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* Erazor III with TNT2 (NV05) and on a no-name TNT2-M64. Both cards coldstart
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* Erazor III with TNT2 (NV05) and on two no-name TNT2-M64's. All cards coldstart
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* perfectly. */
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static status_t exec_type1_script(uint8* rom, uint16 adress, int16* size, uint16 ram_tab)
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{
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@ -903,7 +903,82 @@ static void setup_ram_config(uint8* rom, uint16 ram_tab)
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LOG(8,("INFO: ---RAM width tested: access is OK.\n"));
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}
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//fixme?: do RAM size test
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/* do RAM size test to confirm RAM size set to be correct */
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ram_cfg = (NV_REG32(NV32_NV4STRAPINFO) & 0x00000003);
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data = 0x4e563542;
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/* first check for 32Mb... */
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if (!ram_cfg)
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{
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/* write testpattern to just above the 16Mb boundary */
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((uint32 *)si->framebuffer)[(16 * 1024 * 1024) >> 2] = data;
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/* check if pattern reads back */
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if (((uint32 *)si->framebuffer)[(16 * 1024 * 1024) >> 2] == data)
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{
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/* write second testpattern to base adress */
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data = 0x4135564e;
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((uint32 *)si->framebuffer)[0] = data;
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if (((uint32 *)si->framebuffer)[0] == data)
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{
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LOG(8,("INFO: ---RAM size tested: size was set OK (32Mb).\n"));
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return;
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}
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}
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/* one of the two tests for 32Mb failed, we must have 16Mb */
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ram_cfg = 0x00000003;
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LOG(8,("INFO: ---RAM size tested: size is 16Mb, correcting settings.\n"));
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NV_REG32(NV32_NV4STRAPINFO) =
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(((NV_REG32(NV32_NV4STRAPINFO)) & 0xfffffffc) | ram_cfg);
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return;
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}
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/* ... now check for 16Mb... */
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if (ram_cfg == 0x00000003)
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{
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/* increment testpattern */
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data++;
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/* write testpattern to just above the 8Mb boundary */
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((uint32 *)si->framebuffer)[(8 * 1024 * 1024) >> 2] = data;
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/* check if pattern reads back */
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if (((uint32 *)si->framebuffer)[(8 * 1024 * 1024) >> 2] == data)
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{
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LOG(8,("INFO: ---RAM size tested: size was set OK (16Mb).\n"));
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return;
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}
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else
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{
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/* assuming 8Mb: retesting below! */
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ram_cfg = 0x00000002;
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LOG(8,("INFO: ---RAM size tested: size is NOT 16Mb, testing for 8Mb...\n"));
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NV_REG32(NV32_NV4STRAPINFO) =
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(((NV_REG32(NV32_NV4STRAPINFO)) & 0xfffffffc) | ram_cfg);
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}
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}
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/* ... and now check for 8Mb! (ram_cfg will be 'pre'set to 4Mb or 8Mb here) */
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{
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/* increment testpattern (again) */
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data++;
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/* write testpattern to just above the 4Mb boundary */
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((uint32 *)si->framebuffer)[(4 * 1024 * 1024) >> 2] = data;
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/* check if pattern reads back */
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if (((uint32 *)si->framebuffer)[(4 * 1024 * 1024) >> 2] == data)
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{
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/* we have 8Mb, make sure this is set. */
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ram_cfg = 0x00000002;
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LOG(8,("INFO: ---RAM size tested: size is 8Mb, setting 8Mb.\n"));
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/* fixme? assuming this should be done here! */
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NV_REG32(NV32_NV4STRAPINFO) =
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(((NV_REG32(NV32_NV4STRAPINFO)) & 0xfffffffc) | ram_cfg);
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return;
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}
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else
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{
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/* we must have 4Mb, make sure this is set. */
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ram_cfg = 0x00000001;
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LOG(8,("INFO: ---RAM size tested: size is 4Mb, setting 4Mb.\n"));
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NV_REG32(NV32_NV4STRAPINFO) =
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(((NV_REG32(NV32_NV4STRAPINFO)) & 0xfffffffc) | ram_cfg);
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return;
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}
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}
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}
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/* this routine is used for NV10 and later */
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