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authorIgor Opaniuk <igor.opaniuk@toradex.com>2019-12-03 14:04:47 +0200
committerStefano Babic <sbabic@denx.de>2019-12-06 12:09:30 +0100
commitc671d8af0bb07b028d808b994b83b2ec25578a44 (patch)
tree6b167c1835d62577ce589ebe5096a6621a8778c2 /arch/arm/include/asm
parent949b5a969d107613b61a1e5eaf9e43c75a97f42c (diff)
board: colibri_imx7: reserve DDR memory for Cortex-M4
i.MX 7's Cortex-M4 core can run from DDR and uses DDR memory for the rpmsg communication. Both use cases need a fixed location of memory reserved. For the rpmsg use case the reserved area needs to be in sync with the kernel's hardcoded vring descriptor location. Use the linux,usable-memory property to carve out 1MB of memory in case the M4 core is running. Also make sure that the i.MX 7 specific rpmsg driver does not get loaded in case we do not carve out memory. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com> Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/mach-imx/sys_proto.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index 52c83ba9e4..c9b509e6a7 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -153,6 +153,8 @@ void init_src(void);
void init_snvs(void);
void imx_wdog_disable_powerdown(void);
+int arch_auxiliary_core_check_up(u32 core_id);
+
int board_mmc_get_env_dev(int devno);
int nxp_board_rev(void);