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| author | Ronald G. Minnich <rminnich@gmail.com> | 2003-10-02 22:48:28 +0000 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2003-10-02 22:48:28 +0000 |
| commit | a70483b83bdc733e187ca6955b4edfa02a4d80e0 (patch) | |
| tree | d07fe2c2d5f1e7369ac541671d1ab9a28b0890ef /src/northbridge/via/vt8601/northbridge.c | |
| parent | cb3f498296bad22b360796139bc454d141d7ccc9 (diff) | |
| download | coreboot-a70483b83bdc733e187ca6955b4edfa02a4d80e0.tar.xz | |
First SPD code in and working!
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1177 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/via/vt8601/northbridge.c')
| -rw-r--r-- | src/northbridge/via/vt8601/northbridge.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/northbridge/via/vt8601/northbridge.c b/src/northbridge/via/vt8601/northbridge.c index 8ad94f01a5..e289a6c9d2 100644 --- a/src/northbridge/via/vt8601/northbridge.c +++ b/src/northbridge/via/vt8601/northbridge.c @@ -13,12 +13,16 @@ #include "chip.h" #include "northbridge.h" +static const uint8_t ramregs[] = {0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, + 0x56, 0x57}; + struct mem_range *sizeram(void) { unsigned long mmio_basek; static struct mem_range mem[10]; device_t dev; int i, idx; + unsigned char rambits; dev = dev_find_slot(0, 0); if (!dev) { @@ -33,7 +37,24 @@ struct mem_range *sizeram(void) mem[idx].sizek = 0; idx++; } + for(rambits = 0, i = 0; i < sizeof(ramregs)/sizeof(ramregs[0]); i++) { + unsigned char reg; + reg = pci_read_config8(dev, ramregs[i]); + /* these are ENDING addresses, not sizes. + * if there is memory in this slot, then reg will be > rambits. + * So we just take the max, that gives us total. + * We take the highest one to cover for once and future linuxbios + * bugs. We warn about bugs. + */ + if (reg > rambits) + rambits = reg; + if (reg < rambits) + printk_err("ERROR! register 0x%x is not set!\n", + ramregs[i]); + } + printk_err("I would set ram size to 0x%x Mbytes\n", (1 <<rambits)*8); + #if 1 for(i = 0; i < idx; i++) { printk_debug("mem[%d].basek = %08x mem[%d].sizek = %08x\n", @@ -58,7 +79,7 @@ static void enumerate(struct chip *chip) */ static void random_fixup() { - device_t *pcidev = dev_find_slot(0, 0); + device_t pcidev = dev_find_slot(0, 0); printk_spew("VT8601 random fixup ...\n"); if (pcidev) { |