[U-Boot] [PATCH 1/2] imx: mx8m: add memory mapping for CAAM and TCM

Peng Fan peng.fan at nxp.com
Sat Nov 17 10:00:31 UTC 2018



> -----Original Message-----
> From: Gary Bisson [mailto:gary.bisson at boundarydevices.com]
> Sent: 2018年11月15日 0:55
> To: u-boot at lists.denx.de
> Cc: sbabic at denx.de; Fabio Estevam <fabio.estevam at nxp.com>; Peng Fan
> <peng.fan at nxp.com>; dl-linux-imx <linux-imx at nxp.com>; Gary Bisson
> <gary.bisson at boundarydevices.com>
> Subject: [PATCH 1/2] imx: mx8m: add memory mapping for CAAM and TCM
> 
> Otherwise can't boot the M4 core as it is impossible to load its firmware into
> the TCM memory.
> 
> Signed-off-by: Gary Bisson <gary.bisson at boundarydevices.com>
> ---
>  arch/arm/mach-imx/mx8m/soc.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm/mach-imx/mx8m/soc.c
> b/arch/arm/mach-imx/mx8m/soc.c index 46873aa8dd..11251c5f9a 100644
> --- a/arch/arm/mach-imx/mx8m/soc.c
> +++ b/arch/arm/mach-imx/mx8m/soc.c
> @@ -77,6 +77,22 @@ static struct mm_region imx8m_mem_map[] = {
>  		.size = 0x100000UL,
>  		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
>  			 PTE_BLOCK_OUTER_SHARE
> +	}, {
> +		/* CAAM */
> +		.virt = 0x100000UL,
> +		.phys = 0x100000UL,
> +		.size = 0x8000UL,
> +		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
> +			 PTE_BLOCK_NON_SHARE |
> +			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
> +	}, {
> +		/* TCM */
> +		.virt = 0x7C0000UL,
> +		.phys = 0x7C0000UL,
> +		.size = 0x80000UL,
> +		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
> +			 PTE_BLOCK_NON_SHARE |
> +			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
>  	}, {
>  		/* OCRAM */
>  		.virt = 0x900000UL,

Reviewed-by: Peng Fan <peng.fan at nxp.com>
> --
> 2.19.1



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