diff options
Diffstat (limited to 'sound/soc/intel/sst-haswell-dsp.c')
| -rw-r--r-- | sound/soc/intel/sst-haswell-dsp.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/sound/soc/intel/sst-haswell-dsp.c b/sound/soc/intel/sst-haswell-dsp.c index 57039b00efc2..c42ffae5fe9f 100644 --- a/sound/soc/intel/sst-haswell-dsp.c +++ b/sound/soc/intel/sst-haswell-dsp.c @@ -306,7 +306,7 @@ static void hsw_reset(struct sst_dsp *sst) static int hsw_set_dsp_D0(struct sst_dsp *sst) { int tries = 10; - u32 reg; + u32 reg, fw_dump_bit; /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */ reg = readl(sst->addr.pci_cfg + SST_VDRTCTL2); @@ -368,7 +368,9 @@ finish: can't be accessed, please enable each block before accessing. */ reg = readl(sst->addr.pci_cfg + SST_VDRTCTL0); reg |= SST_VDRTCL0_DSRAMPGE_MASK | SST_VDRTCL0_ISRAMPGE_MASK; - writel(reg, sst->addr.pci_cfg + SST_VDRTCTL0); + /* for D0, always enable the block(DSRAM[0]) used for FW dump */ + fw_dump_bit = 1 << SST_VDRTCL0_DSRAMPGE_SHIFT; + writel(reg & ~fw_dump_bit, sst->addr.pci_cfg + SST_VDRTCTL0); /* disable DMA finish function for SSP0 & SSP1 */ @@ -491,6 +493,7 @@ static const struct sst_sram_shift sram_shift[] = { {SST_DEV_ID_LYNX_POINT, 6, 16}, /* lp */ {SST_DEV_ID_WILDCAT_POINT, 2, 12}, /* wpt */ }; + static u32 hsw_block_get_bit(struct sst_mem_block *block) { u32 bit = 0, shift = 0, index; @@ -587,7 +590,9 @@ static int hsw_block_disable(struct sst_mem_block *block) val = readl(sst->addr.pci_cfg + SST_VDRTCTL0); bit = hsw_block_get_bit(block); - writel(val | bit, sst->addr.pci_cfg + SST_VDRTCTL0); + /* don't disable DSRAM[0], keep it always enable for FW dump*/ + if (bit != (1 << SST_VDRTCL0_DSRAMPGE_SHIFT)) + writel(val | bit, sst->addr.pci_cfg + SST_VDRTCTL0); /* wait 18 DSP clock ticks */ udelay(10); @@ -612,7 +617,7 @@ static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata) const struct sst_adsp_memregion *region; struct device *dev; int ret = -ENODEV, i, j, region_count; - u32 offset, size; + u32 offset, size, fw_dump_bit; dev = sst->dma_dev; @@ -669,9 +674,11 @@ static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata) } } + /* always enable the block(DSRAM[0]) used for FW dump */ + fw_dump_bit = 1 << SST_VDRTCL0_DSRAMPGE_SHIFT; /* set default power gating control, enable power gating control for all blocks. that is, can't be accessed, please enable each block before accessing. */ - writel(0xffffffff, sst->addr.pci_cfg + SST_VDRTCTL0); + writel(0xffffffff & ~fw_dump_bit, sst->addr.pci_cfg + SST_VDRTCTL0); return 0; } |