diff options
Diffstat (limited to 'src/mainboard/technologic/ts5300/mainboard.c')
| -rw-r--r-- | src/mainboard/technologic/ts5300/mainboard.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/mainboard/technologic/ts5300/mainboard.c b/src/mainboard/technologic/ts5300/mainboard.c index 6595c4b979..0b3e4cef4b 100644 --- a/src/mainboard/technologic/ts5300/mainboard.c +++ b/src/mainboard/technologic/ts5300/mainboard.c @@ -3,9 +3,146 @@ #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> +#include <cpu/amd/sc520.h> #include "chip.h" + +static void irqdump() +{ + volatile unsigned char *irq; + void *mmcr; + + + int i; + int irqlist[] = {0xd00, 0xd02, 0xd03, 0xd04, 0xd08, 0xd0a, + 0xd14, 0xd18, 0xd1a, 0xd1b, 0xd1c, + 0xd20, 0xd21, 0xd22, 0xd28, 0xd29, + 0xd30, 0xd31, 0xd32, 0xd33, + 0xd40, 0xd41, 0xd42, 0xd43,0xd44, 0xd45, 0xd46, + 0xd50, 0xd51, 0xd52, 0xd53,0xd54, 0xd55, 0xd56, 0xd57,0xd58, 0xd59, 0xd5a, + -1}; + mmcr = (void *) 0xfffef000; + + printk_err("mmcr is %p\n", mmcr); + for(i = 0; irqlist[i] >= 0; i++) { + irq = mmcr + irqlist[i]; + printk_err("0x%x register @%p is 0x%lx\n", irqlist[i], irq, *irq); + } + +} + +/* TODO: finish up mmcr struct in sc520.h, and; + - set ADDDECTL (now done in raminit.c in cpu/amd/sc520 +*/ +static void enable_dev(struct device *dev) { + extern unsigned char *rom_start, *rom_end; + volatile struct mmcrpic *pic = MMCRPIC; + volatile struct mmcr *mmcr = MMCRDEFAULT; + + /* ts5300 has this register set to a weird value. + * follow the board, not the manual! + */ + + /* currently, nothing in the device to use, so ignore it. */ + printk_err("Technologic Systems 5300 ENTER %s\n", __FUNCTION__); + + + /* from fuctory bios */ + /* NOTE: the following interrupt settings made interrupts work + * for hard drive, and serial, but not for ethernet + */ + /* just do what they say and nobody gets hurt. */ + mmcr->pic.pcicr = 0 ; // M_GINT_MODE | M_S1_MODE | M_S2_MODE; + /* all ints to level */ + mmcr->pic.mpicmode = 0; + mmcr->pic.sl1picmode = 0; + mmcr->pic.sl2picmode = 0x80; + + mmcr->pic.intpinpol = 0; + + mmcr->pic.pit0map = 1; + mmcr->pic.uart1map = 0xc; + mmcr->pic.uart2map = 0xb; + mmcr->pic.rtcmap = 3; + mmcr->pic.ferrmap = 8; + mmcr->pic.gp0imap = 6; + mmcr->pic.gp1imap = 2; + mmcr->pic.gp2imap = 7; + mmcr->pic.gp6imap = 0x15; + mmcr->pic.gp7imap = 0x16; + mmcr->pic.gp10imap = 0x9; + mmcr->pic.gp9imap = 0x4; + + + + + + irqdump(); + printk_err("uart 1 ctl is 0x%x\n", *(unsigned char *) 0xfffefcc0); + + printk_err("0xc20 ctl is 0x%x\n", *(unsigned short *) 0xfffefc20); + printk_err("0xc22 0x%x\n", *(unsigned short *) 0xfffefc22b); + + /* The following block has NOT proven sufficient to get + * the VGA hardware to talk to us + */ + /* let's set some mmcr stuff per the BIOS settings */ + mmcr->dbctl.dbctl = 0x10; + mmcr->sysarb.ctl = 6; + mmcr->sysarb.menb = 0xf; + mmcr->sysarb.prictl = 0xc0000f0f; + /* this is bios setting, depends on sysarb above */ + mmcr->hostbridge.ctl = 0x108; + printk_err("TS5300 EXIT %s\n", __FUNCTION__); + + /* pio */ + mmcr->pio.data31_16 = 0xffbf; + + /* pci stuff */ + mmcr->pic.pciintamap = 0xa; + + /* END block where vga hardware still will not talk to us */ + /* all we get from VGA I/O addresses are ffff etc. + */ + mmcr->sysmap.adddecctl = 0x10; + + /* VGA now talks to us, so this adddecctl was the trick. + * still no interrupts from enet. + * Let's try fixing the piodata stuff, as there may be + * some wire there not documented. + */ + mmcr->pio.data31_16 = 0xffbf; + /* also, our sl?picmode needs to match fuctory bios */ + mmcr->pic.sl1picmode = 0x80; + mmcr->pic.sl2picmode = 0x0; + /* and, finally, they do set gp5imap and we don't. + */ + mmcr->pic.gp5imap = 0xd; + /* remaining problem: almost certainly, the irq table is bogus + * NO SHOCK as it came from fuctory bios. + * but let's try these 4 changes for now and see what shakes. + */ + /* still not interrupts. */ + /* their IRQ table is wrong. Just hardwire it */ + { + char pciints[4] = {15, 15, 15, 15}; + pci_assign_irqs(0, 12, pciints); + } + /* the assigned failed but we just noticed -- there is no + * dma mapping, and selftest on e100 requires that dma work + */ + /* follow fuctory here */ + mmcr->dmacontrol.extchanmapa = 0x3210; + + /* hack for IDIOTIC need to fix rom_start */ + printk_err("Patching rom_start due to sc520 limits\n"); + rom_start = 0x2000000 + 0x40000; + rom_end = rom_start + PAYLOAD_SIZE - 1; + + +} struct chip_operations mainboard_technologic_ts5300_ops = { CHIP_NAME("Technologic Systems TS5300 mainboard ") + .enable_dev = enable_dev }; |