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| author | Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com> | 2017-01-17 15:58:48 +0100 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-01-23 15:37:42 +0900 |
| commit | 6d0e34bf4e21596563e5f5950d097a2eab4c81a8 (patch) | |
| tree | d1d82e018cb8b85d7f0ddb102667b676fe891237 /drivers/mmc/mv_sdhci.c | |
| parent | 0c9e85f67cd86d2d7a3424ea3ebff0e6db7a3915 (diff) | |
| download | u-boot-6d0e34bf4e21596563e5f5950d097a2eab4c81a8.tar.gz | |
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency
The sdhci controller assumes that the base clock frequency is fully supported by
the peripheral and doesn't support hardware limitations. The Linux kernel
distinguishes between base clock (max_clk) of the host controller and maximum
frequency (f_max) of the card interface. Use the same differentiation and allow
the platform to constrain the peripheral interface.
Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Diffstat (limited to 'drivers/mmc/mv_sdhci.c')
| -rw-r--r-- | drivers/mmc/mv_sdhci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/mv_sdhci.c b/drivers/mmc/mv_sdhci.c index e388ad171b..69aa87babe 100644 --- a/drivers/mmc/mv_sdhci.c +++ b/drivers/mmc/mv_sdhci.c @@ -77,6 +77,7 @@ int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks) host->name = MVSDH_NAME; host->ioaddr = (void *)regbase; host->quirks = quirks; + host->max_clk = max_clk; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS memset(&mv_ops, 0, sizeof(struct sdhci_ops)); mv_ops.write_b = mv_sdhci_writeb; @@ -88,5 +89,5 @@ int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks) sdhci_mvebu_mbus_config((void __iomem *)regbase); } - return add_sdhci(host, max_clk, min_clk); + return add_sdhci(host, 0, min_clk); } |