Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-25 06:00:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

drivers: usb: ohci-at91: clean up the PLLB code

Browse source 
Due to introducing the new PLLB clock handle functions,
use these functions to clean up the PLLB enable/disable code.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Tested-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Wenyou Yang 2016-02-03 10:20:44 +08:00 committed by Andreas Bießmann
parent be5e485cf9
commit 9cf7385c9b
1 changed files with 7 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
drivers/usb/host/ohci-at91.c
View file

@ -9,20 +9,14 @@
#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/clk.h>
int usb_cpu_init(void)
{
at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
#ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
/* Enable PLLB */
writel(get_pllb_init(), &pmc->pllbr);
while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB)
;
if (at91_pllb_clk_enable(get_pllb_init()))
return -1;
#ifdef CONFIG_AT91SAM9N12
at91_usb_clk_init(AT91_PMC_USBS_USB_PLLB | AT91_PMC_USB_DIV_2);
#endif
@ -45,8 +39,6 @@ int usb_cpu_init(void)
int usb_cpu_stop(void)
{
at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
at91_periph_clk_disable(ATMEL_ID_UHP);
at91_system_clk_disable(ATMEL_PMC_UHP);
@ -58,10 +50,10 @@ int usb_cpu_stop(void)
#ifdef CONFIG_AT91SAM9N12
at91_usb_clk_init(0);
#endif
/* Disable PLLB */
writel(0, &pmc->pllbr);
while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0)
;
if (at91_pllb_clk_disable())
return -1;
#elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL)
if (at91_upll_clk_disable())
return -1;