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Diffstat (limited to 'board/st-ericsson/snowball/mmc_fifo.h')
| -rw-r--r-- | board/st-ericsson/snowball/mmc_fifo.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/board/st-ericsson/snowball/mmc_fifo.h b/board/st-ericsson/snowball/mmc_fifo.h new file mode 100644 index 000000000..e2fb0a53b --- /dev/null +++ b/board/st-ericsson/snowball/mmc_fifo.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Martin Lundholm <martin.xa.lundholm@stericsson.com> + * + * License terms: GNU General Public License (GPL), version 2. + */ + +#include <common.h> + +#ifndef __ASSEMBLY__ + +/* + * Function: mmc_fifo_read() + * + * Info: Reads data from an MMC (ARM PL180) FIFO + * + * Parameters: + * fifo - pointer to the first PL180 FIFO register + * buf - pointer to a read buffer (32-bit aligned) + * count - number of bytes to be read (32-bit aligned) + * status_reg - pointer to the PL180 status register + * + * Returns '0' if success and PL180 status on failure. + * + */ +int mmc_fifo_read(u32 *fifo, u32 *buf, unsigned int count, u32 *status_reg); + +/* + * Function: mmc_fifo_write() + * + * Info: Writes data to an MMC (ARM PL180) FIFO + * + * Parameters: + * buf - pointer to a write buffer (32-bit aligned) + * fifo - pointer to the first PL180 FIFO register + * count - number of bytes to be written (32-bit aligned) + * status_reg - pointer to the PL180 status register + * + * Returns '0' if success and PL180 status on failure. + * + */ +int mmc_fifo_write(u32 *buf, u32 *fifo, unsigned int count, u32 *status_reg); + +#endif /* __ASSEMBLY__ */ |