sys-sdhci.c File Reference

#include <barrier.h>
#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <log.h>
#include <timer.h>
#include <mmu.h>
#include <sys-clk.h>
#include <sys-gpio.h>
#include <mmc/sys-mmc.h>
#include <mmc/sys-sdhci.h>

Include dependency graph for sys-sdhci.c:

Functions
int	sunxi_sdhci_set_mclk (sunxi_sdhci_t *sdhci, uint32_t clk_hz)
	Set the SDHC controller's clock frequency.
uint32_t	sunxi_sdhci_get_mclk (sunxi_sdhci_t *sdhci)
	Get the current clock frequency of the SDHC controller.

Function Documentation

sunxi_sdhci_get_mclk()

uint32_t sunxi_sdhci_get_mclk

(

sunxi_sdhci_t *

sdhci

)

Get the current clock frequency of the SDHC controller.

This function retrieves the current clock frequency of the specified SDHC controller.

Parameters

sdhci

Pointer to the SDHC controller structure.

Returns

Current clock frequency in Hertz.

sunxi_sdhci_set_mclk()

int sunxi_sdhci_set_mclk	(	sunxi_sdhci_t *	sdhci,
		uint32_t	clk_hz
	)

Set the SDHC controller's clock frequency.

This function sets the clock frequency for the specified SDHC controller.

Parameters

sdhci	Pointer to the SDHC controller structure.
clk_hz	Desired clock frequency in Hertz.

Returns

Returns 0 on success, -1 on failure.