michaelh/zephyr
1
0
Fork 0
Code Releases Activity

usdhc/pinmux: configure pinmux of usdhc on mimxrt1050 evk

Browse source 
Implementation of pinmux of usdhc depends on board design.

Usdhc driver could change pinmux according to SD mode, SoC

should provide API for this. Board pinmux should register

its pinmux function to SoC.

Signed-off-by: Jun Yang <jun.yang@nxp.com>
This commit is contained in:
Jun Yang 2019-07-03 21:23:35 -07:00 • committed by Maureen Helm
commit 6ff5ac05e4
3 changed files with 131 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

28
soc/arm/nxp_imx/rt/soc.c
View file

@ -192,6 +192,34 @@ static ALWAYS_INLINE void clkInit(void)
}
#if defined(CONFIG_DISK_ACCESS_USDHC1) || \
defined(CONFIG_DISK_ACCESS_USDHC2)
/* Usdhc driver needs to re-configure pinmux
* Pinmux depends on board design.
* From the perspective of Usdhc driver,
* it can't access board specific function.
* So SoC provides this for board to register
* its usdhc pinmux and for usdhc to access
* pinmux.
*/
static usdhc_pin_cfg_cb g_usdhc_pin_cfg_cb;
void imxrt_usdhc_pinmux_cb_register(usdhc_pin_cfg_cb cb)
{
g_usdhc_pin_cfg_cb = cb;
}
void imxrt_usdhc_pinmux(u16_t nusdhc, bool init,
u32_t speed, u32_t strength)
{
if (g_usdhc_pin_cfg_cb)
g_usdhc_pin_cfg_cb(nusdhc, init,
speed, strength);
}
#endif
/**
*
* @brief Perform basic hardware initialization