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sd-as3525v2: Add some register bit descriptions.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24872 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jack Halpin 2010-02-23 21:31:54 +00:00
parent 9d268d796c
commit 1c09c037f9
1 changed files with 135 additions and 17 deletions
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152
firmware/target/arm/as3525/sd-as3525v2.c
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@ -70,18 +70,55 @@
#define MCI_PWREN SD_REG(0x04) /* power enable */
#define PWR_CRD_0 (1<<0)
#define PWR_CRD_1 (1<<1)
#define PWR_CRD_2 (1<<2)
#define PWR_CRD_3 (1<<3)
#define MCI_CLKDIV SD_REG(0x08) /* clock divider */
/* CLK_DIV_0 : bits 7:0
* CLK_DIV_1 : bits 15:8
* CLK_DIV_2 : bits 23:16
* CLK_DIV_3 : bits 31:24
*/
#define MCI_CLKSRC SD_REG(0x0C) /* clock source */
/* CLK_SRC_CRD0: bits 1:0
* CLK_SRC_CRD0: bits 3:2
* CLK_SRC_CRD0: bits 5:4
* CLK_SRC_CRD0: bits 7:6
*/
#define MCI_CLKENA SD_REG(0x10) /* clock enable */
#define CCLK_ENA_CRD0 (1<<0)
#define CCLK_ENA_CRD1 (1<<1)
#define CCLK_ENA_CRD2 (1<<2)
#define CCLK_ENA_CRD3 (1<<3)
#define CCLK_LP_CRD0 (1<<16)
#define CCLK_LP_CRD1 (1<<17)
#define CCLK_LP_CRD2 (1<<18)
#define CCLK_LP_CRD3 (1<<19)
#define MCI_TMOUT SD_REG(0x14) /* timeout */
/* response timeout bits 0:7
* data timeout bits 8:31
*/
#define MCI_CTYPE SD_REG(0x18) /* card type */
/* 1 bit per card, set = wide bus */
#define WIDTH4_CRD0 (1<<0)
#define WIDTH4_CRD1 (1<<1)
#define WIDTH4_CRD2 (1<<2)
#define WIDTH4_CRD3 (1<<3)
#define MCI_BLKSIZ SD_REG(0x1C) /* block size */
#define MCI_BYTCNT SD_REG(0x20) /* byte count */
#define MCI_BLKSIZ SD_REG(0x1C) /* block size bits 0:15*/
#define MCI_BYTCNT SD_REG(0x20) /* byte count bits 0:31*/
#define MCI_MASK SD_REG(0x24) /* interrupt mask */
#define MCI_ARGUMENT SD_REG(0x28)
#define MCI_COMMAND SD_REG(0x2C)
@ -110,16 +147,6 @@
#define MCI_MASK_STATUS SD_REG(0x40) /* masked interrupt status */
#define MCI_RAW_STATUS SD_REG(0x44) /* raw interrupt status, also used as
* status clear */
#define MCI_STATUS SD_REG(0x48)
/*
* STATUS register
* & 0xBA80 = MCI_INT_DCRC | MCI_INT_DRTO | MCI_INT_FRUN | \
* MCI_INT_HLE | MCI_INT_SBE | MCI_INT_EBE
* & 8 = MCI_INT_DTO
* & 0x428 = MCI_INT_DTO | MCI_INT_RXDR | MCI_INT_HTO
* & 0x418 = MCI_INT_DTO | MCI_INT_TXDR | MCI_INT_HTO
*/
/* interrupt bits */
#define MCI_INT_CRDDET (1<<0) /* card detect */
@ -140,10 +167,54 @@
#define MCI_INT_EBE (1<<15) /* end bit error */
#define MCI_INT_SDIO (0xf<<16)
/*
* STATUS register
* & 0xBA80 = MCI_INT_DCRC | MCI_INT_DRTO | MCI_INT_FRUN | \
* MCI_INT_HLE | MCI_INT_SBE | MCI_INT_EBE
* & 8 = MCI_INT_DTO
* & 0x428 = MCI_INT_DTO | MCI_INT_RXDR | MCI_INT_HTO
* & 0x418 = MCI_INT_DTO | MCI_INT_TXDR | MCI_INT_HTO
*/
#define MCI_ERROR (MCI_INT_RE | MCI_INT_RCRC | MCI_INT_DCRC /*| MCI_INT_RTO*/ \
| MCI_INT_DRTO | MCI_INT_HTO | MCI_INT_FRUN | MCI_INT_HLE \
| MCI_INT_SBE | MCI_INT_EBE)
#define MCI_STATUS SD_REG(0x48)
#define FIFO_RX_WM (1<<0)
#define FIFO_TX_WM (1<<1)
#define FIFO_EMPTY (1<<2)
#define FIFO_FULL (1<<3)
#define CMD_FSM_STATE_B0 (1<<4)
#define CMD_FSM_STATE_B1 (1<<5)
#define CMD_FSM_STATE_B2 (1<<6)
#define CMD_FSM_STATE_B3 (1<<7)
#define DATA_3_STAT (1<<8)
#define DATA_BUSY (1<<9)
#define DATA_STAT_MC_BUSY (1<<10)
#define RESP_IDX_B0 (1<<11)
#define RESP_IDX_B1 (1<<12)
#define RESP_IDX_B2 (1<<13)
#define RESP_IDX_B3 (1<<14)
#define RESP_IDX_B4 (1<<15)
#define RESP_IDX_B5 (1<<16)
#define FIFO_CNT_B00 (1<<17)
#define FIFO_CNT_B01 (1<<18)
#define FIFO_CNT_B02 (1<<19)
#define FIFO_CNT_B03 (1<<20)
#define FIFO_CNT_B04 (1<<21)
#define FIFO_CNT_B05 (1<<22)
#define FIFO_CNT_B06 (1<<23)
#define FIFO_CNT_B07 (1<<24)
#define FIFO_CNT_B08 (1<<25)
#define FIFO_CNT_B09 (1<<26)
#define FIFO_CNT_B10 (1<<27)
#define FIFO_CNT_B11 (1<<28)
#define FIFO_CNT_B12 (1<<29)
#define DMA_ACK (1<<30)
#define START_CMD (1<<31)
#define MCI_FIFOTH SD_REG(0x4C) /* FIFO threshold */
/* TX watermark : bits 11:0
* RX watermark : bits 27:16
@ -153,23 +224,70 @@
#define MCI_FIFOTH_MASK 0x8000f000
#define MCI_CDETECT SD_REG(0x50) /* card detect */
#define CDETECT_CRD_0 (1<<0)
#define CDETECT_CRD_1 (1<<1)
#define CDETECT_CRD_2 (1<<2)
#define CDETECT_CRD_3 (1<<3)
#define MCI_WRTPRT SD_REG(0x54) /* write protect */
#define MCI_GPIO SD_REG(0x58)
#define MCI_TCBCNT SD_REG(0x5C) /* transferred CIU byte count */
#define MCI_TBBCNT SD_REG(0x60) /* transferred host/DMA to/from bytes */
#define MCI_DEBNCE SD_REG(0x64) /* card detect debounce */
#define MCI_TCBCNT SD_REG(0x5C) /* transferred CIU byte count (card)*/
#define MCI_TBBCNT SD_REG(0x60) /* transferred host/DMA to/from bytes (FIFO)*/
#define MCI_DEBNCE SD_REG(0x64) /* card detect debounce bits 23:0*/
#define MCI_USRID SD_REG(0x68) /* user id */
#define MCI_VERID SD_REG(0x6C) /* version id */
#define MCI_HCON SD_REG(0x70) /* hardware config */
/* bit 0 : card type
* bits 5:1 : maximum card index */
/* bit 0 : card type
* bits 5:1 : maximum card index
* bit 6 : BUS TYPE
* bits 9:7 : DATA WIDTH
* bits 15:10 : ADDR WIDTH
* bits 17:16 : DMA IF
* bits 20:18 : DMA WIDTH
* bit 21 : FIFO RAM INSIDE
* bit 22 : IMPL HOLD REG
* bit 23 : SET CLK FALSE
* bits 25:24 : MAX CLK DIV IDX
* bit 26 : AREA OPTIM
*/
#define MCI_BMOD SD_REG(0x80) /* bus mode */
/* bit 0 : SWR
* bit 1 : FB
* bits 6:2 : DSL
* bit 7 : DE
* bit 10:8 : PBL
*/
#define MCI_PLDMND SD_REG(0x84) /* poll demand */
#define MCI_DBADDR SD_REG(0x88) /* descriptor base address */
#define MCI_IDSTS SD_REG(0x8C) /* internal DMAC status */
/* bit 0 : TI
* bit 1 : RI
* bit 2 : FBE
* bit 3 : unused
* bit 4 : DU
* bit 5 : CES
* bits 7:6 : unused
* bits 8 : NIS
* bit 9 : AIS
* bits 12:10 : EB
* bits 16:13 : FSM
*/
#define MCI_IDINTEN SD_REG(0x90) /* internal DMAC interrupt enable */
/* bit 0 : TI
* bit 1 : RI
* bit 2 : FBE
* bit 3 : unused
* bit 4 : DU
* bit 5 : CES
* bits 7:6 : unused
* bits 8 : NI
* bit 9 : AI
*/
#define MCI_DSCADDR SD_REG(0x94) /* current host descriptor address */
#define MCI_BUFADDR SD_REG(0x98) /* current host buffer address */