d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use the newly added mpc85xx_get_system_clock()

Browse Source 
Simplify the platform clock acquisition by using the new helper function.
This commit is contained in:
Justin Hibbits 2017-04-01 22:35:03 +00:00
parent bba2d2bd51
commit 6e1c39e9b2
1 changed files with 6 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
sys/dev/sdhci/fsl_sdhci.c
View File

@ -58,6 +58,10 @@ __FBSDID("$FreeBSD$");
#include <arm/freescale/imx/imx_ccmvar.h>
#endif
#ifdef __powerpc__
#include <powerpc/mpc85xx/mpc85xx.h>
#endif
#include <dev/gpio/gpiobusvar.h>
#include <dev/ofw/ofw_bus.h>
@ -767,7 +771,6 @@ fsl_sdhci_get_card_present(device_t dev, struct sdhci_slot *slot)
static uint32_t
fsl_sdhci_get_platform_clock(device_t dev)
{
device_t parent;
phandle_t node;
uint32_t clock;
@ -777,23 +780,14 @@ fsl_sdhci_get_platform_clock(device_t dev)
if((OF_getprop(node, "clock-frequency", (void *)&clock,
sizeof(clock)) <= 0) || (clock == 0)) {
/*
* Trying to get clock from parent device (soc) if correct
* clock cannot be acquired from sdhci node.
*/
parent = device_get_parent(dev);
node = ofw_bus_get_node(parent);
clock = mpc85xx_get_system_clock();
/* Get soc properties */
if ((OF_getprop(node, "bus-frequency", (void *)&clock,
sizeof(clock)) <= 0) || (clock == 0)) {
if (clock == 0) {
device_printf(dev,"Cannot acquire correct sdhci "
"frequency from DTS.\n");
return (0);
}
/* eSDHC clock is 1/2 platform clock. */
clock /= 2;
}
if (bootverbose)