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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2009-06-02 11:37:53 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-11-12 08:31:41 +0100 |
| commit | 06ecb04ac5c038248d2bcee92a2a4259f2acfa31 (patch) | |
| tree | 93d0133ce29590cab534caaeebd59c130a61333d /drivers/mtd | |
| parent | mxc_nand: cleanup initialization (diff) | |
| download | linux-06ecb04ac5c038248d2bcee92a2a4259f2acfa31.tar.xz linux-06ecb04ac5c038248d2bcee92a2a4259f2acfa31.zip | |
mxc_nand: merge send_read_page and send_prog_page
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/mxc_nand.c | 54 |
1 files changed, 13 insertions, 41 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index dafa1f0e04db..8aa8a429e6b8 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -226,12 +226,10 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast) wait_op_done(host, TROP_US_DELAY, addr, islast); } -/* This function requests the NANDFC to initate the transfer - * of data currently in the NANDFC RAM buffer to the NAND device. */ -static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id, - int spare_only) +static void send_page(struct mxc_nand_host *host, uint8_t buf_id, + int spare_only, unsigned int ops) { - DEBUG(MTD_DEBUG_LEVEL3, "send_prog_page (%d)\n", spare_only); + DEBUG(MTD_DEBUG_LEVEL3, "send_page (%d)\n", spare_only); /* NANDFC buffer 0 is used for page read/write */ writew(buf_id, host->regs + NFC_BUF_ADDR); @@ -246,33 +244,7 @@ static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id, writew(config1, host->regs + NFC_CONFIG1); } - writew(NFC_INPUT, host->regs + NFC_CONFIG2); - - /* Wait for operation to complete */ - wait_op_done(host, TROP_US_DELAY, spare_only, true); -} - -/* Requests NANDFC to initated the transfer of data from the - * NAND device into in the NANDFC ram buffer. */ -static void send_read_page(struct mxc_nand_host *host, uint8_t buf_id, - int spare_only) -{ - DEBUG(MTD_DEBUG_LEVEL3, "send_read_page (%d)\n", spare_only); - - /* NANDFC buffer 0 is used for page read/write */ - writew(buf_id, host->regs + NFC_BUF_ADDR); - - /* Configure spare or page+spare access */ - if (!host->pagesize_2k) { - uint32_t config1 = readw(host->regs + NFC_CONFIG1); - if (spare_only) - config1 |= NFC_SP_EN; - else - config1 &= ~NFC_SP_EN; - writew(config1, host->regs + NFC_CONFIG1); - } - - writew(NFC_OUTPUT, host->regs + NFC_CONFIG2); + writew(ops, host->regs + NFC_CONFIG2); /* Wait for operation to complete */ wait_op_done(host, TROP_US_DELAY, spare_only, true); @@ -756,13 +728,13 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, break; case NAND_CMD_PAGEPROG: - send_prog_page(host, 0, host->spare_only); + send_page(host, 0, host->spare_only, NFC_INPUT); if (host->pagesize_2k) { /* data in 4 areas datas */ - send_prog_page(host, 1, host->spare_only); - send_prog_page(host, 2, host->spare_only); - send_prog_page(host, 3, host->spare_only); + send_page(host, 1, host->spare_only, NFC_INPUT); + send_page(host, 2, host->spare_only, NFC_INPUT); + send_page(host, 3, host->spare_only, NFC_INPUT); } break; @@ -827,12 +799,12 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, /* send read confirm command */ send_cmd(host, NAND_CMD_READSTART, true); /* read for each AREA */ - send_read_page(host, 0, host->spare_only); - send_read_page(host, 1, host->spare_only); - send_read_page(host, 2, host->spare_only); - send_read_page(host, 3, host->spare_only); + send_page(host, 0, host->spare_only, NFC_OUTPUT); + send_page(host, 1, host->spare_only, NFC_OUTPUT); + send_page(host, 2, host->spare_only, NFC_OUTPUT); + send_page(host, 3, host->spare_only, NFC_OUTPUT); } else - send_read_page(host, 0, host->spare_only); + send_page(host, 0, host->spare_only, NFC_OUTPUT); break; case NAND_CMD_READID: |