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drivers: at91: clean up peripheral clock code

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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>
Tested-by: Heiko Schocher <hs@denx.de>
[fixup for missing clk.h in at91_emac.c]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Wenyou Yang 2016-02-03 10:16:51 +08:00 committed by Andreas Bießmann
parent 70341e2ed9
commit cd4de1d928
3 changed files with 9 additions and 29 deletions
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10
drivers/net/at91_emac.c
View File

@ -12,7 +12,7 @@
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_emac.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/clk.h>
#include <asm/arch/at91_pio.h>
#include <net.h>
#include <netdev.h>
@ -321,7 +321,6 @@ 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 +346,8 @@ 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 +452,10 @@ 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],

8
drivers/usb/host/ehci-atmel.c
View File

@ -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 */

20
drivers/usb/host/ohci-at91.c
View File

@ -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