SCFW change memory map

xu_ji1 — Fri, 23 Apr 2021 06:23:59 GMT

Hi，

Now we used 512MB DDR on i.MX8X platform,and I need to change the memory map in code

How to set below code about 512MB memory?

/* Board has 3GB memory so fragment upper region and retain 1GB */
BRD_ERR(rm_memreg_frag(pt_boot, &mr_temp, 0x8C0000000ULL,
0xFFFFFFFFFULL));

/* Move M4 0 TCM */
BRD_ERR(rm_find_memreg(pt_boot, &mr_m4_0, 0x034FE0000ULL,
0x034FE0000ULL));
BRD_ERR(rm_assign_memreg(pt_boot, pt_m4_0, mr_m4_0));

/* Reserve DDR for M4_0 */
BRD_ERR(rm_memreg_frag(pt_boot, &mr_m4_0,
0x088000000ULL, 0x08FFFFFFFULL));
BRD_ERR(rm_assign_memreg(pt_boot, pt_m4_0, mr_m4_0));

/* Reserve FlexSPI for M4_0 */
BRD_ERR(rm_memreg_frag(pt_boot, &mr_m4_0, 0x08081000ULL,
0x08180FFFULL));

/* Create shared memory space */
BRD_ERR(rm_memreg_frag(pt_boot, &mr_sh,
0x090000000ULL, 0x091FFFFFFULL));

Re: SCFW change memory map

igorpadykov — Fri, 23 Apr 2021 10:06:53 GMT

Hi Xu

additional patches were sent via mail, also may be useful:

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX8X-5-4-24-kernel-customization-application-notes-Chinese/ta-p/1109979

Best regards
igor

topic SCFW change memory map in i.MX Processors

SCFW change memory map

Re: SCFW change memory map