[U-Boot] [PATCH v3 5/5] drivers: at91: clean up peripheral clock code

[Heiko Schocher <hs@denx.de>]

Hello Wenyou,

Am 10.12.2015 um 03:20 schrieb Wenyou Yang:
> Due to introducing the new peripheral clock handle functions,
> use these functions to reduce the duplicated code.
>
> Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
> ---
>
> Changes in v3: None
> Changes in v2: None
>
>   drivers/net/at91_emac.c       |    9 ++++-----
>   drivers/usb/host/ehci-atmel.c |    8 --------
>   drivers/usb/host/ohci-at91.c  |   20 ++++----------------
>   3 files changed, 8 insertions(+), 29 deletions(-)

Tested on the smartweb board, see log:
http://xeidos.ddns.net/buildbot/builders/smartweb_dfu/builds/29/steps/shell/logs/tbotlog

Tested-by: Heiko Schocher <hs@denx.de>

bye,
Heiko
>
> diff --git a/drivers/net/at91_emac.c b/drivers/net/at91_emac.c
> index d51e098..bb6866d 100644
> --- a/drivers/net/at91_emac.c
> +++ b/drivers/net/at91_emac.c
> @@ -12,7 +12,6 @@
>   #include <asm/io.h>
>   #include <asm/arch/hardware.h>
>   #include <asm/arch/at91_emac.h>
> -#include <asm/arch/at91_pmc.h>
>   #include <asm/arch/at91_pio.h>
>   #include <net.h>
>   #include <netdev.h>
> @@ -321,7 +320,6 @@ static int at91emac_init(struct eth_device *netdev, bd_t *bd)
>   	emac_device *dev;
>   	at91_emac_t *emac;
>   	at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
> -	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
>
>   	emac = (at91_emac_t *) netdev->iobase;
>   	dev = (emac_device *) netdev->priv;
> @@ -347,7 +345,8 @@ static int at91emac_init(struct eth_device *netdev, bd_t *bd)
>   	writel(value, &pio->piob.pdr);
>   	writel(value, &pio->piob.bsr);
>
> -	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
> +	at91_periph_clk_enable(ATMEL_ID_EMAC);
> +
>   	writel(readl(&emac->ctl) | AT91_EMAC_CTL_CSR, &emac->ctl);
>
>   	/* Init Ethernet buffers */
> @@ -452,10 +451,10 @@ static int at91emac_recv(struct eth_device *netdev)
>   static int at91emac_write_hwaddr(struct eth_device *netdev)
>   {
>   	at91_emac_t *emac;
> -	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
>   	emac = (at91_emac_t *) netdev->iobase;
>
> -	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
> +	at91_periph_clk_enable(ATMEL_ID_EMAC);
> +
>   	debug_cond(DEBUG_AT91EMAC,
>   		"init MAC-ADDR %02x:%02x:%02x:%02x:%02x:%02x\n",
>   		netdev->enetaddr[5], netdev->enetaddr[4], netdev->enetaddr[3],
> diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
> index 9a8f004..a33fb49 100644
> --- a/drivers/usb/host/ehci-atmel.c
> +++ b/drivers/usb/host/ehci-atmel.c
> @@ -40,11 +40,7 @@ int ehci_hcd_init(int index, enum usb_init_type init,
>   	}
>
>   	/* Enable USB Host clock */
> -#ifdef CPU_HAS_PCR
>   	at91_periph_clk_enable(ATMEL_ID_UHPHS);
> -#else
> -	writel(1 << ATMEL_ID_UHPHS, &pmc->pcer);
> -#endif
>
>   	*hccr = (struct ehci_hccr *)ATMEL_BASE_EHCI;
>   	*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
> @@ -59,11 +55,7 @@ int ehci_hcd_stop(int index)
>   	ulong start_time, tmp_time;
>
>   	/* Disable USB Host Clock */
> -#ifdef CPU_HAS_PCR
>   	at91_periph_clk_disable(ATMEL_ID_UHPHS);
> -#else
> -	writel(1 << ATMEL_ID_UHPHS, &pmc->pcdr);
> -#endif
>
>   	start_time = get_timer(0);
>   	/* Disable UTMI PLL */
> diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
> index 820e2e5..da85111 100644
> --- a/drivers/usb/host/ohci-at91.c
> +++ b/drivers/usb/host/ohci-at91.c
> @@ -37,17 +37,11 @@ int usb_cpu_init(void)
>   	writel(AT91_PMC_USBS_USB_UPLL | AT91_PMC_USBDIV_10, &pmc->usb);
>   #endif
>
> -	/* Enable USB host clock. */
> -#ifdef CPU_HAS_PCR
>   	at91_periph_clk_enable(ATMEL_ID_UHP);
> -#else
> -	writel(1 << ATMEL_ID_UHP, &pmc->pcer);
> -#endif
>
> +	at91_system_clk_enable(ATMEL_PMC_UHP);
>   #if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
> -	writel(ATMEL_PMC_UHP | AT91_PMC_HCK0, &pmc->scer);
> -#else
> -	writel(ATMEL_PMC_UHP, &pmc->scer);
> +	at91_system_clk_enable(AT91_PMC_HCK0);
>   #endif
>
>   	return 0;
> @@ -57,17 +51,11 @@ int usb_cpu_stop(void)
>   {
>   	at91_pmc_t *pmc	= (at91_pmc_t *)ATMEL_BASE_PMC;
>
> -	/* Disable USB host clock. */
> -#ifdef CPU_HAS_PCR
>   	at91_periph_clk_disable(ATMEL_ID_UHP);
> -#else
> -	writel(1 << ATMEL_ID_UHP, &pmc->pcdr);
> -#endif
>
> +	at91_system_clk_disable(ATMEL_PMC_UHP);
>   #if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
> -	writel(ATMEL_PMC_UHP | AT91_PMC_HCK0, &pmc->scdr);
> -#else
> -	writel(ATMEL_PMC_UHP, &pmc->scdr);
> +	at91_system_clk_disable(AT91_PMC_HCK0);
>   #endif
>
>   #ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
>

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