diff options
| author | Wenyou Yang <wenyou.yang@atmel.com> | 2016-02-03 10:20:44 +0800 |
|---|---|---|
| committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2016-02-18 21:34:41 +0100 |
| commit | 9cf7385c9b4d33b43dcfb6782f0f246ea33769d9 (patch) | |
| tree | 65688d38a3c9ef9c3de5bd4fca8bdec079472ddd /drivers/usb | |
| parent | be5e485cf995d916ec2e0d2381879ae205354e5c (diff) | |
drivers: usb: ohci-at91: clean up the PLLB code
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 6ae6959e4d..e030a0ab14 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -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; |