diff options
| author | Ye Li <ye.li@nxp.com> | 2022-09-20 15:39:40 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2022-10-08 21:33:43 +0800 |
| commit | 50758c92e8fd1544a2d47da0b483a741863b7981 (patch) | |
| tree | 3b867f27f4b54eb073405df7bed5c1ef67f7245f | |
| parent | bb6108298df3bf43bf89428b78725ef72de876d8 (diff) | |
LFU-399 imx8ulp: Reconfigure MRC3 for SRAM0 access
Some space in SRAM0 will be protected by S400 to allow RX SecPriv mode
access only for boot purpose. Since SW will reuse the SRAM0 as SCMI
buffer and SPL container loading buffer, need to reconfigure MRC3.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
(cherry picked from commit ebfac7540de520b97724d3fd2d5918b4b56327b1)
| -rw-r--r-- | arch/arm/mach-imx/imx8ulp/rdc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8ulp/rdc.c b/arch/arm/mach-imx/imx8ulp/rdc.c index 66225c0a6a..f5423ec7b9 100644 --- a/arch/arm/mach-imx/imx8ulp/rdc.c +++ b/arch/arm/mach-imx/imx8ulp/rdc.c @@ -276,6 +276,21 @@ void xrdc_init_mda(void) void xrdc_init_mrc(void) { + /* Re-config MRC3 for SRAM0 in case protected by S400 */ + xrdc_config_mrc_w0_w1(3, 0, 0x22010000, 0x10000); + xrdc_config_mrc_dx_perm(3, 0, 0, 1); + xrdc_config_mrc_dx_perm(3, 0, 1, 1); + xrdc_config_mrc_dx_perm(3, 0, 4, 1); + xrdc_config_mrc_dx_perm(3, 0, 5, 1); + xrdc_config_mrc_dx_perm(3, 0, 6, 1); + xrdc_config_mrc_dx_perm(3, 0, 7, 1); + xrdc_config_mrc_w3_w4(3, 0, 0x0, 0x80000FFF); + + /* Clear other 3 regions of MRC3 to invalid */ + xrdc_config_mrc_w3_w4(3, 1, 0x0, 0x0); + xrdc_config_mrc_w3_w4(3, 2, 0x0, 0x0); + xrdc_config_mrc_w3_w4(3, 3, 0x0, 0x0); + /* Set MRC4 and MRC5 for DDR access from A35 and AP NIC PER masters */ xrdc_config_mrc_w0_w1(4, 0, CONFIG_SYS_SDRAM_BASE, PHYS_SDRAM_SIZE); xrdc_config_mrc_dx_perm(4, 0, 1, 1); |