/*************************************************
* enable the dedicated function in ma785gm board.
* This function called early than rs780_enable.
*************************************************/
static void mainboard_enable(struct device *dev)
{
printk(BIOS_INFO, "Mainboard MA785GM-US2H Enable. dev=0x%p\n", dev);
set_pcie_dereset();
/* get_ide_dma66(); */
set_gpio40_gfx();
}
/*************************************************
* enable the dedicated function in tilapia board.
* This function called early than rs780_enable.
*************************************************/
static void tilapia_enable(device_t dev)
{
printk(BIOS_INFO, "Mainboard TILAPIA Enable. dev=0x%p\n", dev);
#if (CONFIG_GFXUMA == 1)
msr_t msr, msr2;
/* TOP_MEM: the top of DRAM below 4G */
msr = rdmsr(TOP_MEM);
printk(BIOS_INFO,
"%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
__func__, msr.lo, msr.hi);
/* TOP_MEM2: the top of DRAM above 4G */
msr2 = rdmsr(TOP_MEM2);
printk(BIOS_INFO,
"%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
__func__, msr2.lo, msr2.hi);
switch (msr.lo) {
case 0x10000000: /* 256M system memory */
uma_memory_size = 0x4000000; /* 64M recommended UMA */
break;
case 0x20000000: /* 512M system memory */
uma_memory_size = 0x8000000; /* 128M recommended UMA */
break;
default: /* 1GB and above system memory */
uma_memory_size = 0x10000000; /* 256M recommended UMA */
break;
}
uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */
printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
__func__, uma_memory_size, uma_memory_base);
/* TODO: TOP_MEM2 */
#else
uma_memory_size = 0x8000000; /* 128M recommended UMA */
uma_memory_base = 0x38000000; /* 1GB system memory supposed */
#endif
set_pcie_dereset();
/* get_ide_dma66(); */
set_thermal_config();
set_gpio40_gfx();
}
