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authorLudovic Desroches <ludovic.desroches@atmel.com>2011-08-11 15:25:44 +0000
committerChris Ball <cjb@laptop.org>2011-10-26 15:43:26 -0400
commit796211b7953bd1036670359f31cd97f309322107 (patch)
treeba83818e4bc9265f3bf2e4e9786c525922b41b38 /drivers/mmc/host/atmel-mci-regs.h
parentb9867f371c5e1197f2109daf64168e3af41df8a5 (diff)
downloadop-kernel-dev-796211b7953bd1036670359f31cd97f309322107.zip
op-kernel-dev-796211b7953bd1036670359f31cd97f309322107.tar.gz
mmc: atmel-mci: add pdc support and runtime capabilities detection
Add pdc support for atmel-mci. It makes at91-mci driver useless because it was only used for the old atmel MCI core which has pdc but no dma support. To allow removing at91-mci, the capabilities of the MCI core are detected at runtime -- then the driver will use pio, pdc or dma transfers. Warning: at91rm9200 is not supported, to support it we need to use swab32 on data but I have no board to test it. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/atmel-mci-regs.h')
-rw-r--r--drivers/mmc/host/atmel-mci-regs.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h
index 7310b20..000b3ad 100644
--- a/drivers/mmc/host/atmel-mci-regs.h
+++ b/drivers/mmc/host/atmel-mci-regs.h
@@ -88,8 +88,14 @@
# define ATMCI_BLKE ( 1 << 3) /* Data Block Ended */
# define ATMCI_DTIP ( 1 << 4) /* Data Transfer In Progress */
# define ATMCI_NOTBUSY ( 1 << 5) /* Data Not Busy */
+# define ATMCI_ENDRX ( 1 << 6) /* End of RX Buffer */
+# define ATMCI_ENDTX ( 1 << 7) /* End of TX Buffer */
# define ATMCI_SDIOIRQA ( 1 << 8) /* SDIO IRQ in slot A */
# define ATMCI_SDIOIRQB ( 1 << 9) /* SDIO IRQ in slot B */
+# define ATMCI_SDIOWAIT ( 1 << 12) /* SDIO Read Wait Operation Status */
+# define ATMCI_CSRCV ( 1 << 13) /* CE-ATA Completion Signal Received */
+# define ATMCI_RXBUFF ( 1 << 14) /* RX Buffer Full */
+# define ATMCI_TXBUFE ( 1 << 15) /* TX Buffer Empty */
# define ATMCI_RINDE ( 1 << 16) /* Response Index Error */
# define ATMCI_RDIRE ( 1 << 17) /* Response Direction Error */
# define ATMCI_RCRCE ( 1 << 18) /* Response CRC Error */
@@ -97,6 +103,13 @@
# define ATMCI_RTOE ( 1 << 20) /* Response Time-Out Error */
# define ATMCI_DCRCE ( 1 << 21) /* Data CRC Error */
# define ATMCI_DTOE ( 1 << 22) /* Data Time-Out Error */
+# define ATMCI_CSTOE ( 1 << 23) /* Completion Signal Time-out Error */
+# define ATMCI_BLKOVRE ( 1 << 24) /* DMA Block Overrun Error */
+# define ATMCI_DMADONE ( 1 << 25) /* DMA Transfer Done */
+# define ATMCI_FIFOEMPTY ( 1 << 26) /* FIFO Empty Flag */
+# define ATMCI_XFRDONE ( 1 << 27) /* Transfer Done Flag */
+# define ATMCI_ACKRCV ( 1 << 28) /* Boot Operation Acknowledge Received */
+# define ATMCI_ACKRCVE ( 1 << 29) /* Boot Operation Acknowledge Error */
# define ATMCI_OVRE ( 1 << 30) /* RX Overrun Error */
# define ATMCI_UNRE ( 1 << 31) /* TX Underrun Error */
#define ATMCI_DMA 0x0050 /* DMA Configuration[2] */
@@ -114,6 +127,7 @@
#define ATMCI_WPSR 0x00e8 /* Write Protection Status[2] */
# define ATMCI_GET_WP_VS(x) ((x) & 0x0f)
# define ATMCI_GET_WP_VSRC(x) (((x) >> 8) & 0xffff)
+#define ATMCI_VERSION 0x00FC /* Version */
#define ATMCI_FIFO_APERTURE 0x0200 /* FIFO Aperture[2] */
/* This is not including the FIFO Aperture on MCI2 */
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