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Wait 20ms for the PLL to stabilize after enabling it.

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Fixes occasional bogus size report for my SD card.
This commit is contained in:
bouyer 2015-11-14 10:32:40 +00:00
parent 78da7b9d09
commit a83db5274c
1 changed files with 3 additions and 2 deletions
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5
sys/arch/arm/allwinner/awin_mmc.c
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@ -1,4 +1,4 @@
/* $NetBSD: awin_mmc.c,v 1.22 2015/10/16 14:22:25 bouyer Exp $ */
/* $NetBSD: awin_mmc.c,v 1.23 2015/11/14 10:32:40 bouyer Exp $ */
/*-
* Copyright (c) 2014 Jared D. McNeill <jmcneill@invisible.ca>
@ -29,7 +29,7 @@
#include "locators.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.22 2015/10/16 14:22:25 bouyer Exp $");
__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.23 2015/11/14 10:32:40 bouyer Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -380,6 +380,7 @@ awin_mmc_set_clock(struct awin_mmc_softc *sc, u_int freq)
clk |= __SHIFTIN(sdly, AWIN_SD_CLK_PHASE_CTR);
clk |= AWIN_PLL_CFG_ENABLE;
bus_space_write_4(sc->sc_bst, sc->sc_clk_bsh, 0, clk);
delay(20000);
return 0;
}