diff options
| -rw-r--r-- | arch/arm/cpu/armv7/mx7/soc.c | 51 | ||||
| -rw-r--r-- | include/configs/mx7d_arm2.h | 2 | ||||
| -rw-r--r-- | include/configs/mx7dsabresd.h | 2 |
3 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx7/soc.c b/arch/arm/cpu/armv7/mx7/soc.c index 9a6714ef5b3..6616e419521 100644 --- a/arch/arm/cpu/armv7/mx7/soc.c +++ b/arch/arm/cpu/armv7/mx7/soc.c @@ -18,6 +18,10 @@ #include <dm.h> #include <imx_thermal.h> #include <mxsfb.h> +#ifdef CONFIG_MXC_RDC +#include <asm/imx-common/rdc-sema.h> +#include <asm/arch/imx-rdc.h> +#endif #ifdef CONFIG_FSL_FASTBOOT #ifdef CONFIG_ANDROID_RECOVERY #include <recovery.h> @@ -39,6 +43,50 @@ U_BOOT_DEVICE(imx7_thermal) = { }; #endif +#ifdef CONFIG_MXC_RDC +static rdc_peri_cfg_t const resources[] = { + (RDC_PER_SIM1 | RDC_DOMAIN(0)), + (RDC_PER_SIM2 | RDC_DOMAIN(0)), + (RDC_PER_UART1 | RDC_DOMAIN(0)), + (RDC_PER_UART2 | RDC_DOMAIN(0)), + (RDC_PER_UART3 | RDC_DOMAIN(0)), + (RDC_PER_UART4 | RDC_DOMAIN(0)), + (RDC_PER_UART5 | RDC_DOMAIN(0)), + (RDC_PER_UART6 | RDC_DOMAIN(0)), + (RDC_PER_UART7 | RDC_DOMAIN(0)), + (RDC_PER_SAI1 | RDC_DOMAIN(0)), + (RDC_PER_SAI2 | RDC_DOMAIN(0)), + (RDC_PER_SAI3 | RDC_DOMAIN(0)), + (RDC_PER_WDOG1 | RDC_DOMAIN(0)), + (RDC_PER_WDOG2 | RDC_DOMAIN(0)), + (RDC_PER_WDOG3 | RDC_DOMAIN(0)), + (RDC_PER_WDOG4 | RDC_DOMAIN(0)), + (RDC_PER_GPT1 | RDC_DOMAIN(0)), + (RDC_PER_GPT2 | RDC_DOMAIN(0)), + (RDC_PER_GPT3 | RDC_DOMAIN(0)), + (RDC_PER_GPT4 | RDC_DOMAIN(0)), + (RDC_PER_PWM1 | RDC_DOMAIN(0)), + (RDC_PER_PWM2 | RDC_DOMAIN(0)), + (RDC_PER_PWM3 | RDC_DOMAIN(0)), + (RDC_PER_PWM4 | RDC_DOMAIN(0)), + (RDC_PER_ENET1 | RDC_DOMAIN(0)), + (RDC_PER_ENET2 | RDC_DOMAIN(0)), +}; + +static void isolate_resource(void) +{ + /* At default, all resources are in domain 0 - 3. Here we setup + * some resources to domain 0 where M4 codes will move the M4 + * out of this domain. Then M4 is not able to access them any longer. + * This is a workaround for ic issue. In current design, if any peripheral + * was assigned to both A7 and M4, it will receive ipg_stop or ipg_wait + * when any of the 2 platforms enter low power mode. So M4 sleep will cause + * some peripherals fail to work at A core side. + */ + imx_rdc_setup_peripherals(resources, ARRAY_SIZE(resources)); +} +#endif + u32 get_cpu_rev(void) { struct mxc_ccm_anatop_reg *ccm_anatop = (struct mxc_ccm_anatop_reg *) @@ -167,6 +215,9 @@ int arch_cpu_init(void) set_epdc_qos(); +#ifdef CONFIG_MXC_RDC + isolate_resource(); +#endif return 0; } diff --git a/include/configs/mx7d_arm2.h b/include/configs/mx7d_arm2.h index e19774c8ab9..fe1f22f08c0 100644 --- a/include/configs/mx7d_arm2.h +++ b/include/configs/mx7d_arm2.h @@ -100,6 +100,8 @@ #define CONFIG_CMD_SETEXPR #ifdef CONFIG_CMD_BOOTAUX +#define CONFIG_MXC_RDC /* Enable RDC to isolate the peripherals for A7 and M4 */ + #define UPDATE_M4_ENV \ "m4image=m4_qspi.bin\0" \ "loadm4image=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${m4image}\0" \ diff --git a/include/configs/mx7dsabresd.h b/include/configs/mx7dsabresd.h index a443e37f250..750b97e923b 100644 --- a/include/configs/mx7dsabresd.h +++ b/include/configs/mx7dsabresd.h @@ -123,6 +123,8 @@ #define CONFIG_CMD_SETEXPR #ifdef CONFIG_CMD_BOOTAUX +#define CONFIG_MXC_RDC /* Enable RDC to isolate the peripherals for A7 and M4 */ + #define UPDATE_M4_ENV \ "m4image=m4_qspi.bin\0" \ "loadm4image=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${m4image}\0" \ |