diff options
| author | Asutosh Das <asutoshd@codeaurora.org> | 2013-01-10 21:11:04 +0530 |
|---|---|---|
| committer | Subhash Jadavani <subhashj@codeaurora.org> | 2016-05-27 10:28:26 -0700 |
| commit | a507b5a6c4f7b46189b04bf81bf1d66e2fd371f0 (patch) | |
| tree | 1be3ca12e2733ad65a6faf498e7ed71c6019b719 /drivers | |
| parent | 19891e6b3229ab36b88e25deb078b69b73992704 (diff) | |
mmc: sdhci-msm: configure adma descriptors for large request size
This patch adds a function to configure adma descriptors to
support request size upto 512MB.
Change-Id: Ie2ad32106422bb5bdbf72b08d1ecdd74d9a93c19
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-msm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index e0498847d08f..5b5cbdfa706b 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -76,6 +76,9 @@ #define CORE_CLK_PWRSAVE (1 << 1) #define CORE_IO_PAD_PWR_SWITCH (1 << 16) +/* 8KB descriptors */ +#define SDHCI_MSM_MAX_SEGMENTS (1 << 13) + static const u32 tuning_block_64[] = { 0x00FF0FFF, 0xCCC3CCFF, 0xFFCC3CC3, 0xEFFEFFFE, 0xDDFFDFFF, 0xFBFFFBFF, 0xFF7FFFBF, 0xEFBDF777, @@ -1498,10 +1501,16 @@ static void sdhci_msm_toggle_cdr(struct sdhci_host *host, bool enable) host->ioaddr + CORE_DLL_CONFIG); } +static unsigned int sdhci_msm_max_segs(void) +{ + return SDHCI_MSM_MAX_SEGMENTS; +} + static struct sdhci_ops sdhci_msm_ops = { .check_power_status = sdhci_msm_check_power_status, .platform_execute_tuning = sdhci_msm_execute_tuning, .toggle_cdr = sdhci_msm_toggle_cdr, + .get_max_segments = sdhci_msm_max_segs, }; static int sdhci_msm_probe(struct platform_device *pdev) |