Add L2 cache support and enable it by default.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v2: - Add L2_PL310_BASE definition in imx_regs.h Changes since v1: - Fx typo in commit log
arch/arm/cpu/armv7/mx6/soc.c | 20 ++++++++++++++++++++ arch/arm/include/asm/arch-mx6/imx-regs.h | 1 + include/configs/mx6_common.h | 5 +++++ 3 files changed, 26 insertions(+)
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 0208cba..b84de87 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 +338,21 @@ 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 *)L2_PL310_BASE; + + setbits_le32(&pl310->pl310_ctrl, L2CACHE); + +} + +void v7_outer_cache_disable(void) +{ + struct pl310_regs *const pl310 = (struct pl310_regs *)L2_PL310_BASE; + + clrbits_le32(&pl310->pl310_ctrl, L2CACHE); +} +#endif /* !CONFIG_SYS_L2CACHE_OFF */ diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index f2ad6e9..c2d210a 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -53,6 +53,7 @@ #define GLOBAL_TIMER_BASE_ADDR 0x00A00200 #define PRIVATE_TIMERS_WD_BASE_ADDR 0x00A00600 #define IC_DISTRIBUTOR_BASE_ADDR 0x00A01000 +#define L2_PL310_BASE 0x00A02000 #define GPV0_BASE_ADDR 0x00B00000 #define GPV1_BASE_ADDR 0x00C00000 #define PCIE_ARB_BASE_ADDR 0x01000000 diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h index 514d634..63afa46 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 L2_PL310_BASE +#endif + #endif