ref_div =
RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
+
+ if (ref_div == 0)
+ return 0;
+
sclk = fb_div / ref_div;
post_div = RREG32_PLL(RADEON_SCLK_CNTL) & RADEON_SCLK_SRC_SEL_MASK;
}
/* 10 khz */
-static uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev)
+uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev)
{
struct radeon_pll *mpll = &rdev->clock.mpll;
uint32_t fb_div, ref_div, post_div, mclk;
ref_div =
RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
+
+ if (ref_div == 0)
+ return 0;
+
mclk = fb_div / ref_div;
post_div = RREG32_PLL(RADEON_MCLK_CNTL) & 0x7;
ret = radeon_combios_get_clock_info(dev);
if (ret) {
- if (p1pll->reference_div < 2)
- p1pll->reference_div = 12;
+ if (p1pll->reference_div < 2) {
+ if (!ASIC_IS_AVIVO(rdev)) {
+ u32 tmp = RREG32_PLL(RADEON_PPLL_REF_DIV);
+ if (ASIC_IS_R300(rdev))
+ p1pll->reference_div =
+ (tmp & R300_PPLL_REF_DIV_ACC_MASK) >> R300_PPLL_REF_DIV_ACC_SHIFT;
+ else
+ p1pll->reference_div = tmp & RADEON_PPLL_REF_DIV_MASK;
+ if (p1pll->reference_div < 2)
+ p1pll->reference_div = 12;
+ } else
+ p1pll->reference_div = 12;
+ }
if (p2pll->reference_div < 2)
p2pll->reference_div = 12;
if (rdev->family < CHIP_RS600) {