diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2013-11-20 00:31:06 -0800 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-01-13 12:48:24 -0500 |
| commit | 5d60e500541ed154112809627f12d86056ac5f09 (patch) | |
| tree | 5c4386fb93b0ec8a47fd583575abd1fd7819912d /drivers/mmc | |
| parent | 3b159a6e955c8d468f4ffa212c8b5d68d8323a8d (diff) | |
| download | linux-5d60e500541ed154112809627f12d86056ac5f09.tar.bz2 | |
mmc: tmio: add new TMIO_MMC_HAVE_HIGH_REG flags
The accessibility checking method to the higher register was added by
69d1fe18e92afb (mmc: tmio: only access registers above 0xff, if available)
But, it doesn't care 32bit register. It is impossible to calculate it
from the resource size, since there is 16/32 bit register IP (e.g. VERSION
is located on 0xe2 if 16bit register, but it is located on 0x1c4 if 32bit
register).
This patch adds new TMIO_MMC_HAVE_HIGH_REG flags, tmio_mmc driver has it,
and sh_mobile_sdhi doesn't have it today.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.c | 1 | ||||
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_pio.c | 14 |
2 files changed, 5 insertions, 10 deletions
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 6cfb2d5317b0..8a781e2ac4c3 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -91,6 +91,7 @@ static int tmio_mmc_probe(struct platform_device *pdev) /* SD control register space size is 0x200, 0x400 for bus_shift=1 */ pdata->bus_shift = resource_size(res_ctl) >> 10; + pdata->flags |= TMIO_MMC_HAVE_HIGH_REG; ret = tmio_mmc_host_probe(&host, pdev, pdata); if (ret) diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 6836a8008c02..8d8abf23a611 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -161,10 +161,8 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock) static void tmio_mmc_clk_stop(struct tmio_mmc_host *host) { - struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0); - /* implicit BUG_ON(!res) */ - if (resource_size(res) > 0x100) { + if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) { sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000); msleep(10); } @@ -176,14 +174,12 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host) static void tmio_mmc_clk_start(struct tmio_mmc_host *host) { - struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0); - sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, 0x0100 | sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL)); msleep(10); /* implicit BUG_ON(!res) */ - if (resource_size(res) > 0x100) { + if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) { sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100); msleep(10); } @@ -191,16 +187,14 @@ static void tmio_mmc_clk_start(struct tmio_mmc_host *host) static void tmio_mmc_reset(struct tmio_mmc_host *host) { - struct resource *res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0); - /* FIXME - should we set stop clock reg here */ sd_ctrl_write16(host, CTL_RESET_SD, 0x0000); /* implicit BUG_ON(!res) */ - if (resource_size(res) > 0x100) + if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000); msleep(10); sd_ctrl_write16(host, CTL_RESET_SD, 0x0001); - if (resource_size(res) > 0x100) + if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001); msleep(10); } |