[U-Boot] [PATCH v2] mx6: Enable L2 cache support
Stefano Babic
sbabic at denx.de
Tue Jan 28 15:36:28 CET 2014
Hi Fabio,
On 28/01/2014 15:22, Fabio Estevam wrote:
> Add L2 cache support and enable it by default.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> ---
> Changes since v1:
> - Fx typo in commit log
>
> arch/arm/cpu/armv7/mx6/soc.c | 22 ++++++++++++++++++++++
> include/configs/mx6_common.h | 5 +++++
> 2 files changed, 27 insertions(+)
>
> diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
> index 0208cba..5e1e5e9 100644
> --- a/arch/arm/cpu/armv7/mx6/soc.c
> +++ b/arch/arm/cpu/armv7/mx6/soc.c
> @@ -8,6 +8,8 @@
> */
>
> #include <common.h>
> +#include <asm/armv7.h>
> +#include <asm/pl310.h>
> #include <asm/errno.h>
> #include <asm/io.h>
> #include <asm/arch/imx-regs.h>
> @@ -336,3 +338,23 @@ void imx_setup_hdmi(void)
> writel(reg, &mxc_ccm->chsccdr);
> }
> #endif
> +
> +#ifndef CONFIG_SYS_L2CACHE_OFF
> +#define L2CACHE 1
> +void v7_outer_cache_enable(void)
> +{
> + struct pl310_regs *const pl310 =
> + (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
> +
> + setbits_le32(&pl310->pl310_ctrl, L2CACHE);
> +
> +}
> +
> +void v7_outer_cache_disable(void)
> +{
> + struct pl310_regs *const pl310 =
> + (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
> +
> + clrbits_le32(&pl310->pl310_ctrl, L2CACHE);
> +}
> +#endif /* !CONFIG_SYS_L2CACHE_OFF */
> diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h
> index 514d634..993eca1 100644
> --- a/include/configs/mx6_common.h
> +++ b/include/configs/mx6_common.h
> @@ -22,4 +22,9 @@
> #define CONFIG_ARM_ERRATA_751472
> #define CONFIG_BOARD_POSTCLK_INIT
>
> +#ifndef CONFIG_SYS_L2CACHE_OFF
> +#define CONFIG_SYS_L2_PL310
> +#define CONFIG_SYS_PL310_BASE 0x00A02000
Why is the address defined here nad not in imx_regs.h ?
Best regards,
Stefano
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