From: Ludovic Barre <ludovic.barre@xxxxxx> This patch adds stm32 sdmmc specific registers. Signed-off-by: Ludovic Barre <ludovic.barre@xxxxxx> --- drivers/mmc/host/mmci.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index a962cfa..e242f44 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -23,6 +23,14 @@ #define MCI_ST_DATA31DIREN (1 << 5) #define MCI_ST_FBCLKEN (1 << 7) #define MCI_ST_DATA74DIREN (1 << 8) +/* + * The STM32 sdmmc does not have PWR_UP/OD/ROD + * and uses the power register for + */ +#define MCI_STM32_PWR_CYC 0x02 +#define MCI_STM32_VSWITCH BIT(2) +#define MCI_STM32_VSWITCHEN BIT(3) +#define MCI_STM32_DIRPOL BIT(4) #define MMCICLOCK 0x004 #define MCI_CLK_ENABLE (1 << 8) @@ -50,6 +58,19 @@ #define MCI_QCOM_CLK_SELECT_IN_FBCLK BIT(15) #define MCI_QCOM_CLK_SELECT_IN_DDR_MODE (BIT(14) | BIT(15)) +/* Modified on STM32 sdmmc */ +#define MCI_STM32_CLK_CLKDIV_MSK GENMASK(9, 0) +#define MCI_STM32_CLK_WIDEBUS_4 BIT(14) +#define MCI_STM32_CLK_WIDEBUS_8 BIT(15) +#define MCI_STM32_CLK_NEGEDGE BIT(16) +#define MCI_STM32_CLK_HWFCEN BIT(17) +#define MCI_STM32_CLK_DDR BIT(18) +#define MCI_STM32_CLK_BUSSPEED BIT(19) +#define MCI_STM32_CLK_SEL_MSK GENMASK(21, 20) +#define MCI_STM32_CLK_SELCK (0 << 20) +#define MCI_STM32_CLK_SELCKIN (1 << 20) +#define MCI_STM32_CLK_SELFBCK (2 << 20) + #define MMCIARGUMENT 0x008 /* The command register controls the Command Path State Machine (CPSM) */ @@ -72,6 +93,15 @@ #define MCI_CPSM_QCOM_CCSDISABLE BIT(15) #define MCI_CPSM_QCOM_AUTO_CMD19 BIT(16) #define MCI_CPSM_QCOM_AUTO_CMD21 BIT(21) +/* Command register in STM32 sdmmc versions */ +#define MCI_CPSM_STM32_CMDTRANS BIT(6) +#define MCI_CPSM_STM32_CMDSTOP BIT(7) +#define MCI_CPSM_STM32_WAITRESP_MASK GENMASK(9, 8) +#define MCI_CPSM_STM32_NORSP (0 << 8) +#define MCI_CPSM_STM32_SRSP_CRC (1 << 8) +#define MCI_CPSM_STM32_SRSP (2 << 8) +#define MCI_CPSM_STM32_LRSP_CRC (3 << 8) +#define MCI_CPSM_STM32_ENABLE BIT(12) #define MMCIRESPCMD 0x010 #define MMCIRESPONSE0 0x014 @@ -130,6 +160,8 @@ #define MCI_ST_SDIOIT (1 << 22) #define MCI_ST_CEATAEND (1 << 23) #define MCI_ST_CARDBUSY (1 << 24) +/* Extended status bits for the STM32 variants */ +#define MCI_STM32_BUSYD0 BIT(20) #define MMCICLEAR 0x038 #define MCI_CMDCRCFAILCLR (1 << 0) @@ -175,11 +207,32 @@ #define MCI_ST_SDIOITMASK (1 << 22) #define MCI_ST_CEATAENDMASK (1 << 23) #define MCI_ST_BUSYENDMASK (1 << 24) +/* Extended status bits for the STM32 variants */ +#define MCI_STM32_BUSYD0ENDMASK BIT(21) #define MMCIMASK1 0x040 #define MMCIFIFOCNT 0x048 #define MMCIFIFO 0x080 /* to 0x0bc */ +/* STM32 sdmmc registers for IDMA (Internal DMA) */ +#define MMCI_STM32_IDMACTRLR 0x050 +#define MMCI_STM32_IDMAEN BIT(0) +#define MMCI_STM32_IDMALLIEN BIT(1) + +#define MMCI_STM32_IDMABSIZER 0x054 +#define MMCI_STM32_IDMABNDT_SHIFT 5 +#define MMCI_STM32_IDMABNDT_MASK GENMASK(12, 5) + +#define MMCI_STM32_IDMABASE0R 0x058 + +#define MMCI_STM32_IDMALAR 0x64 +#define MMCI_STM32_IDMALA_MASK GENMASK(13, 0) +#define MMCI_STM32_ABR BIT(29) +#define MMCI_STM32_ULS BIT(30) +#define MMCI_STM32_ULA BIT(31) + +#define MMCI_STM32_IDMABAR 0x68 + #define MCI_IRQENABLE \ (MCI_CMDCRCFAILMASK | MCI_DATACRCFAILMASK | MCI_CMDTIMEOUTMASK | \ MCI_DATATIMEOUTMASK | MCI_TXUNDERRUNMASK | MCI_RXOVERRUNMASK | \ @@ -190,6 +243,9 @@ (MCI_RXFIFOHALFFULLMASK | MCI_RXDATAAVLBLMASK | \ MCI_TXFIFOHALFEMPTYMASK) +#define MCI_IRQ_PIO_STM32_MASK \ + (MCI_RXFIFOHALFFULLMASK | MCI_TXFIFOHALFEMPTYMASK) + #define NR_SG 128 #define MMCI_PINCTRL_STATE_OPENDRAIN "opendrain" -- 2.7.4
