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arm: rpi: Add a function to obtain the MMC clock

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Move this code into the new message handler file.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2017-04-05 16:23:37 -06:00
committed by Tom Rini
parent 70997d88c4
commit c6606515f1
3 changed files with 39 additions and 12 deletions
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16
board/raspberrypi/rpi/rpi.c
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@@ -468,23 +468,15 @@ int board_init(void)
int board_mmc_init(bd_t *bis)
{
ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
int ret;
bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
BCM2835_MBOX_INIT_HDR(msg_clk);
BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
ret = bcm2835_get_mmc_clock();
if (ret)
return ret;
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
if (ret) {
printf("bcm2835: Could not query eMMC clock rate\n");
return -1;
}
return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
msg_clk->get_clock_rate.body.resp.rate_hz);
return bcm2835_sdhci_init(BCM2835_SDHCI_BASE, ret);
}
int ft_board_setup(void *blob, bd_t *bd)