Hi!
> From: Dinh Nguyen <dingu...@altera.com>
>
> Add functionality in the System Manager to set the SDR settings for the
> SD/MMC IP.
>
> Signed-off-by: Dinh Nguyen <dingu...@altera.com>
> Cc: Pavel Machek <pa...@denx.de>
> +void socfpga_sysmgr_set_dwmmc_drvsel_smpsel(void)
> +{
> + struct device_node *np;
> + u32 timing[2];
> + u32 hs_timing;
> +
> + np = of_find_compatible_node(NULL, NULL, "altr,socfpga-dw-mshc");
> + of_property_read_u32_array(np, "samsung,dw-mshc-sdr-timing", timing, 2);
> + hs_timing = SYSMGR_SDMMC_CTRL_SET(timing[0], timing[1]);
> + writel(hs_timing, sys_manager_base_addr + SYSMGR_SDMMCGRP_CTRL_OFFSET);
> +}
> +EXPORT_SYMBOL(socfpga_sysmgr_set_dwmmc_drvsel_smpsel);
To get the abstraction right, would it make sense to have timing
parameters as arguments to socfpga_sysmgr_set_dwmmc_drvsel_smpsel(),
so that sysmgr code is not walking MMC's device tree directly?
Thanks,
Pavel
--
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http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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