| Message ID | 1524640743-11732-2-git-send-email-chaotian.jing@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 25 April 2018 at 09:19, Chaotian Jing <chaotian.jing@mediatek.com> wrote: > MT2712 MSDC supports 64G DRAM DMA access, it needs update > gpd/bd structure. > > Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Thanks, applied for next! Kind regards Uffe > --- > drivers/mmc/host/mtk-sd.c | 56 +++++++++++++++++++++++++++++++++++++++++------ > 1 file changed, 49 insertions(+), 7 deletions(-) > > diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c > index d642e11..0484138 100644 > --- a/drivers/mmc/host/mtk-sd.c > +++ b/drivers/mmc/host/mtk-sd.c > @@ -71,6 +71,7 @@ > #define SDC_ADV_CFG0 0x64 > #define EMMC_IOCON 0x7c > #define SDC_ACMD_RESP 0x80 > +#define DMA_SA_H4BIT 0x8c > #define MSDC_DMA_SA 0x90 > #define MSDC_DMA_CTRL 0x98 > #define MSDC_DMA_CFG 0x9c > @@ -195,6 +196,9 @@ > /* SDC_ADV_CFG0 mask */ > #define SDC_RX_ENHANCE_EN (0x1 << 20) /* RW */ > > +/* DMA_SA_H4BIT mask */ > +#define DMA_ADDR_HIGH_4BIT (0xf << 0) /* RW */ > + > /* MSDC_DMA_CTRL mask */ > #define MSDC_DMA_CTRL_START (0x1 << 0) /* W */ > #define MSDC_DMA_CTRL_STOP (0x1 << 1) /* W */ > @@ -228,6 +232,7 @@ > > #define MSDC_PATCH_BIT2_CFGRESP (0x1 << 15) /* RW */ > #define MSDC_PATCH_BIT2_CFGCRCSTS (0x1 << 28) /* RW */ > +#define MSDC_PB2_SUPPORT_64G (0x1 << 1) /* RW */ > #define MSDC_PB2_RESPWAIT (0x3 << 2) /* RW */ > #define MSDC_PB2_RESPSTSENSEL (0x7 << 16) /* RW */ > #define MSDC_PB2_CRCSTSENSEL (0x7 << 29) /* RW */ > @@ -281,6 +286,8 @@ struct mt_gpdma_desc { > #define GPDMA_DESC_BDP (0x1 << 1) > #define GPDMA_DESC_CHECKSUM (0xff << 8) /* bit8 ~ bit15 */ > #define GPDMA_DESC_INT (0x1 << 16) > +#define GPDMA_DESC_NEXT_H4 (0xf << 24) > +#define GPDMA_DESC_PTR_H4 (0xf << 28) > u32 next; > u32 ptr; > u32 gpd_data_len; > @@ -297,6 +304,8 @@ struct mt_bdma_desc { > #define BDMA_DESC_CHECKSUM (0xff << 8) /* bit8 ~ bit15 */ > #define BDMA_DESC_BLKPAD (0x1 << 17) > #define BDMA_DESC_DWPAD (0x1 << 18) > +#define BDMA_DESC_NEXT_H4 (0xf << 24) > +#define BDMA_DESC_PTR_H4 (0xf << 28) > u32 next; > u32 ptr; > u32 bd_data_len; > @@ -335,6 +344,7 @@ struct mtk_mmc_compatible { > bool busy_check; > bool stop_clk_fix; > bool enhance_rx; > + bool support_64g; > }; > > struct msdc_tune_para { > @@ -404,6 +414,7 @@ struct msdc_host { > .busy_check = false, > .stop_clk_fix = false, > .enhance_rx = false, > + .support_64g = false, > }; > > static const struct mtk_mmc_compatible mt8173_compat = { > @@ -415,6 +426,7 @@ struct msdc_host { > .busy_check = false, > .stop_clk_fix = false, > .enhance_rx = false, > + .support_64g = false, > }; > > static const struct mtk_mmc_compatible mt2701_compat = { > @@ -426,6 +438,7 @@ struct msdc_host { > .busy_check = false, > .stop_clk_fix = false, > .enhance_rx = false, > + .support_64g = false, > }; > > static const struct mtk_mmc_compatible mt2712_compat = { > @@ -437,6 +450,7 @@ struct msdc_host { > .busy_check = true, > .stop_clk_fix = true, > .enhance_rx = true, > + .support_64g = true, > }; > > static const struct mtk_mmc_compatible mt7622_compat = { > @@ -448,6 +462,7 @@ struct msdc_host { > .busy_check = true, > .stop_clk_fix = true, > .enhance_rx = true, > + .support_64g = false, > }; > > static const struct of_device_id msdc_of_ids[] = { > @@ -557,7 +572,12 @@ static inline void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma, > /* init bd */ > bd[j].bd_info &= ~BDMA_DESC_BLKPAD; > bd[j].bd_info &= ~BDMA_DESC_DWPAD; > - bd[j].ptr = (u32)dma_address; > + bd[j].ptr = lower_32_bits(dma_address); > + if (host->dev_comp->support_64g) { > + bd[j].bd_info &= ~BDMA_DESC_PTR_H4; > + bd[j].bd_info |= (upper_32_bits(dma_address) & 0xf) > + << 28; > + } > bd[j].bd_data_len &= ~BDMA_DESC_BUFLEN; > bd[j].bd_data_len |= (dma_len & BDMA_DESC_BUFLEN); > > @@ -576,7 +596,10 @@ static inline void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma, > dma_ctrl &= ~(MSDC_DMA_CTRL_BRUSTSZ | MSDC_DMA_CTRL_MODE); > dma_ctrl |= (MSDC_BURST_64B << 12 | 1 << 8); > writel_relaxed(dma_ctrl, host->base + MSDC_DMA_CTRL); > - writel((u32)dma->gpd_addr, host->base + MSDC_DMA_SA); > + if (host->dev_comp->support_64g) > + sdr_set_field(host->base + DMA_SA_H4BIT, DMA_ADDR_HIGH_4BIT, > + upper_32_bits(dma->gpd_addr) & 0xf); > + writel(lower_32_bits(dma->gpd_addr), host->base + MSDC_DMA_SA); > } > > static void msdc_prepare_data(struct msdc_host *host, struct mmc_request *mrq) > @@ -1367,6 +1390,9 @@ static void msdc_init_hw(struct msdc_host *host) > MSDC_PATCH_BIT2_CFGCRCSTS); > } > > + if (host->dev_comp->support_64g) > + sdr_set_bits(host->base + MSDC_PATCH_BIT2, > + MSDC_PB2_SUPPORT_64G); > if (host->dev_comp->data_tune) { > sdr_set_bits(host->base + tune_reg, > MSDC_PAD_TUNE_RD_SEL | MSDC_PAD_TUNE_CMD_SEL); > @@ -1408,19 +1434,32 @@ static void msdc_init_gpd_bd(struct msdc_host *host, struct msdc_dma *dma) > { > struct mt_gpdma_desc *gpd = dma->gpd; > struct mt_bdma_desc *bd = dma->bd; > + dma_addr_t dma_addr; > int i; > > memset(gpd, 0, sizeof(struct mt_gpdma_desc) * 2); > > + dma_addr = dma->gpd_addr + sizeof(struct mt_gpdma_desc); > gpd->gpd_info = GPDMA_DESC_BDP; /* hwo, cs, bd pointer */ > - gpd->ptr = (u32)dma->bd_addr; /* physical address */ > /* gpd->next is must set for desc DMA > * That's why must alloc 2 gpd structure. > */ > - gpd->next = (u32)dma->gpd_addr + sizeof(struct mt_gpdma_desc); > + gpd->next = lower_32_bits(dma_addr); > + if (host->dev_comp->support_64g) > + gpd->gpd_info |= (upper_32_bits(dma_addr) & 0xf) << 24; > + > + dma_addr = dma->bd_addr; > + gpd->ptr = lower_32_bits(dma->bd_addr); /* physical address */ > + if (host->dev_comp->support_64g) > + gpd->gpd_info |= (upper_32_bits(dma_addr) & 0xf) << 28; > + > memset(bd, 0, sizeof(struct mt_bdma_desc) * MAX_BD_NUM); > - for (i = 0; i < (MAX_BD_NUM - 1); i++) > - bd[i].next = (u32)dma->bd_addr + sizeof(*bd) * (i + 1); > + for (i = 0; i < (MAX_BD_NUM - 1); i++) { > + dma_addr = dma->bd_addr + sizeof(*bd) * (i + 1); > + bd[i].next = lower_32_bits(dma_addr); > + if (host->dev_comp->support_64g) > + bd[i].bd_info |= (upper_32_bits(dma_addr) & 0xf) << 24; > + } > } > > static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) > @@ -1913,7 +1952,10 @@ static int msdc_drv_probe(struct platform_device *pdev) > mmc->max_blk_size = 2048; > mmc->max_req_size = 512 * 1024; > mmc->max_blk_count = mmc->max_req_size / 512; > - host->dma_mask = DMA_BIT_MASK(32); > + if (host->dev_comp->support_64g) > + host->dma_mask = DMA_BIT_MASK(36); > + else > + host->dma_mask = DMA_BIT_MASK(32); > mmc_dev(mmc)->dma_mask = &host->dma_mask; > > host->timeout_clks = 3 * 1048576; > -- > 1.8.1.1.dirty > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index d642e11..0484138 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -71,6 +71,7 @@ #define SDC_ADV_CFG0 0x64 #define EMMC_IOCON 0x7c #define SDC_ACMD_RESP 0x80 +#define DMA_SA_H4BIT 0x8c #define MSDC_DMA_SA 0x90 #define MSDC_DMA_CTRL 0x98 #define MSDC_DMA_CFG 0x9c @@ -195,6 +196,9 @@ /* SDC_ADV_CFG0 mask */ #define SDC_RX_ENHANCE_EN (0x1 << 20) /* RW */ +/* DMA_SA_H4BIT mask */ +#define DMA_ADDR_HIGH_4BIT (0xf << 0) /* RW */ + /* MSDC_DMA_CTRL mask */ #define MSDC_DMA_CTRL_START (0x1 << 0) /* W */ #define MSDC_DMA_CTRL_STOP (0x1 << 1) /* W */ @@ -228,6 +232,7 @@ #define MSDC_PATCH_BIT2_CFGRESP (0x1 << 15) /* RW */ #define MSDC_PATCH_BIT2_CFGCRCSTS (0x1 << 28) /* RW */ +#define MSDC_PB2_SUPPORT_64G (0x1 << 1) /* RW */ #define MSDC_PB2_RESPWAIT (0x3 << 2) /* RW */ #define MSDC_PB2_RESPSTSENSEL (0x7 << 16) /* RW */ #define MSDC_PB2_CRCSTSENSEL (0x7 << 29) /* RW */ @@ -281,6 +286,8 @@ struct mt_gpdma_desc { #define GPDMA_DESC_BDP (0x1 << 1) #define GPDMA_DESC_CHECKSUM (0xff << 8) /* bit8 ~ bit15 */ #define GPDMA_DESC_INT (0x1 << 16) +#define GPDMA_DESC_NEXT_H4 (0xf << 24) +#define GPDMA_DESC_PTR_H4 (0xf << 28) u32 next; u32 ptr; u32 gpd_data_len; @@ -297,6 +304,8 @@ struct mt_bdma_desc { #define BDMA_DESC_CHECKSUM (0xff << 8) /* bit8 ~ bit15 */ #define BDMA_DESC_BLKPAD (0x1 << 17) #define BDMA_DESC_DWPAD (0x1 << 18) +#define BDMA_DESC_NEXT_H4 (0xf << 24) +#define BDMA_DESC_PTR_H4 (0xf << 28) u32 next; u32 ptr; u32 bd_data_len; @@ -335,6 +344,7 @@ struct mtk_mmc_compatible { bool busy_check; bool stop_clk_fix; bool enhance_rx; + bool support_64g; }; struct msdc_tune_para { @@ -404,6 +414,7 @@ struct msdc_host { .busy_check = false, .stop_clk_fix = false, .enhance_rx = false, + .support_64g = false, }; static const struct mtk_mmc_compatible mt8173_compat = { @@ -415,6 +426,7 @@ struct msdc_host { .busy_check = false, .stop_clk_fix = false, .enhance_rx = false, + .support_64g = false, }; static const struct mtk_mmc_compatible mt2701_compat = { @@ -426,6 +438,7 @@ struct msdc_host { .busy_check = false, .stop_clk_fix = false, .enhance_rx = false, + .support_64g = false, }; static const struct mtk_mmc_compatible mt2712_compat = { @@ -437,6 +450,7 @@ struct msdc_host { .busy_check = true, .stop_clk_fix = true, .enhance_rx = true, + .support_64g = true, }; static const struct mtk_mmc_compatible mt7622_compat = { @@ -448,6 +462,7 @@ struct msdc_host { .busy_check = true, .stop_clk_fix = true, .enhance_rx = true, + .support_64g = false, }; static const struct of_device_id msdc_of_ids[] = { @@ -557,7 +572,12 @@ static inline void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma, /* init bd */ bd[j].bd_info &= ~BDMA_DESC_BLKPAD; bd[j].bd_info &= ~BDMA_DESC_DWPAD; - bd[j].ptr = (u32)dma_address; + bd[j].ptr = lower_32_bits(dma_address); + if (host->dev_comp->support_64g) { + bd[j].bd_info &= ~BDMA_DESC_PTR_H4; + bd[j].bd_info |= (upper_32_bits(dma_address) & 0xf) + << 28; + } bd[j].bd_data_len &= ~BDMA_DESC_BUFLEN; bd[j].bd_data_len |= (dma_len & BDMA_DESC_BUFLEN); @@ -576,7 +596,10 @@ static inline void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma, dma_ctrl &= ~(MSDC_DMA_CTRL_BRUSTSZ | MSDC_DMA_CTRL_MODE); dma_ctrl |= (MSDC_BURST_64B << 12 | 1 << 8); writel_relaxed(dma_ctrl, host->base + MSDC_DMA_CTRL); - writel((u32)dma->gpd_addr, host->base + MSDC_DMA_SA); + if (host->dev_comp->support_64g) + sdr_set_field(host->base + DMA_SA_H4BIT, DMA_ADDR_HIGH_4BIT, + upper_32_bits(dma->gpd_addr) & 0xf); + writel(lower_32_bits(dma->gpd_addr), host->base + MSDC_DMA_SA); } static void msdc_prepare_data(struct msdc_host *host, struct mmc_request *mrq) @@ -1367,6 +1390,9 @@ static void msdc_init_hw(struct msdc_host *host) MSDC_PATCH_BIT2_CFGCRCSTS); } + if (host->dev_comp->support_64g) + sdr_set_bits(host->base + MSDC_PATCH_BIT2, + MSDC_PB2_SUPPORT_64G); if (host->dev_comp->data_tune) { sdr_set_bits(host->base + tune_reg, MSDC_PAD_TUNE_RD_SEL | MSDC_PAD_TUNE_CMD_SEL); @@ -1408,19 +1434,32 @@ static void msdc_init_gpd_bd(struct msdc_host *host, struct msdc_dma *dma) { struct mt_gpdma_desc *gpd = dma->gpd; struct mt_bdma_desc *bd = dma->bd; + dma_addr_t dma_addr; int i; memset(gpd, 0, sizeof(struct mt_gpdma_desc) * 2); + dma_addr = dma->gpd_addr + sizeof(struct mt_gpdma_desc); gpd->gpd_info = GPDMA_DESC_BDP; /* hwo, cs, bd pointer */ - gpd->ptr = (u32)dma->bd_addr; /* physical address */ /* gpd->next is must set for desc DMA * That's why must alloc 2 gpd structure. */ - gpd->next = (u32)dma->gpd_addr + sizeof(struct mt_gpdma_desc); + gpd->next = lower_32_bits(dma_addr); + if (host->dev_comp->support_64g) + gpd->gpd_info |= (upper_32_bits(dma_addr) & 0xf) << 24; + + dma_addr = dma->bd_addr; + gpd->ptr = lower_32_bits(dma->bd_addr); /* physical address */ + if (host->dev_comp->support_64g) + gpd->gpd_info |= (upper_32_bits(dma_addr) & 0xf) << 28; + memset(bd, 0, sizeof(struct mt_bdma_desc) * MAX_BD_NUM); - for (i = 0; i < (MAX_BD_NUM - 1); i++) - bd[i].next = (u32)dma->bd_addr + sizeof(*bd) * (i + 1); + for (i = 0; i < (MAX_BD_NUM - 1); i++) { + dma_addr = dma->bd_addr + sizeof(*bd) * (i + 1); + bd[i].next = lower_32_bits(dma_addr); + if (host->dev_comp->support_64g) + bd[i].bd_info |= (upper_32_bits(dma_addr) & 0xf) << 24; + } } static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) @@ -1913,7 +1952,10 @@ static int msdc_drv_probe(struct platform_device *pdev) mmc->max_blk_size = 2048; mmc->max_req_size = 512 * 1024; mmc->max_blk_count = mmc->max_req_size / 512; - host->dma_mask = DMA_BIT_MASK(32); + if (host->dev_comp->support_64g) + host->dma_mask = DMA_BIT_MASK(36); + else + host->dma_mask = DMA_BIT_MASK(32); mmc_dev(mmc)->dma_mask = &host->dma_mask; host->timeout_clks = 3 * 1048576;
MT2712 MSDC supports 64G DRAM DMA access, it needs update gpd/bd structure. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> --- drivers/mmc/host/mtk-sd.c | 56 +++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 49 insertions(+), 7 deletions(-)