From patchwork Fri Jul 10 03:40:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Fan X-Patchwork-Id: 241237 List-Id: U-Boot discussion From: peng.fan at nxp.com (peng.fan at nxp.com) Date: Fri, 10 Jul 2020 11:40:06 +0800 Subject: [PATCH 1/2] imx8m: implement armv8_el2_to_aarch32 Message-ID: <20200710034007.461-1-peng.fan@nxp.com> From: Peng Fan Add iMX8M specific armv8_el2_to_aarch32 to let AArch64 mode U-Boot could boot aarch32 mode linux with FIT image as below: /dts-v1/; / { description = "Configuration to load ARM32 Linux"; images { kernel at 1 { description = "ARM32 Linux kernel"; data = /incbin/("./Image"); type = "kernel"; arch = "arm"; os = "linux"; compression = "none"; load = <0x40008000>; entry = <0x40008000>; hash at 1 { algo = "md5"; }; }; fdt at 1 { description = "Flattened Device Tree blob"; data = /incbin/("./imx8mm-evk.dtb"); type = "flat_dt"; arch = "arm"; compression = "none"; load = <0x43000000>; hash at 1 { algo = "md5"; }; }; }; configurations { default = "config at 1"; config at 1 { description = "fsl-imx8mm-evk"; kernel = "kernel at 1"; fdt = "fdt at 1"; }; }; }; Signed-off-by: Peng Fan --- arch/arm/mach-imx/imx8m/lowlevel_init.S | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-imx/imx8m/lowlevel_init.S b/arch/arm/mach-imx/imx8m/lowlevel_init.S index a4c6466ca9..a49a9cdb35 100644 --- a/arch/arm/mach-imx/imx8m/lowlevel_init.S +++ b/arch/arm/mach-imx/imx8m/lowlevel_init.S @@ -60,3 +60,15 @@ restore_boot_params: ldr x0, [x0] mov sp, x0 ret + +.global armv8_el2_to_aarch32 +armv8_el2_to_aarch32: + cmp x0, #0 + bne 0f + mov x3, x2 + mov x2, x1 + mov x1, x4 + ldr x0, =0xc20000fd +0: + smc #0 + ret From patchwork Fri Jul 10 03:40:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Fan X-Patchwork-Id: 241238 List-Id: U-Boot discussion From: peng.fan at nxp.com (peng.fan at nxp.com) Date: Fri, 10 Jul 2020 11:40:07 +0800 Subject: [PATCH 2/2] imx8mm_evk: enlarge CONFIG_SYS_BOOTM_LEN In-Reply-To: <20200710034007.461-1-peng.fan@nxp.com> References: <20200710034007.461-1-peng.fan@nxp.com> Message-ID: <20200710034007.461-2-peng.fan@nxp.com> From: Peng Fan Enlarge CONFIG_SYS_BOOTM_LEN when booting FIT image with kernel. Signed-off-by: Peng Fan --- include/configs/imx8mm_evk.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/configs/imx8mm_evk.h b/include/configs/imx8mm_evk.h index 382ba620cc..d1c0e0ec2e 100644 --- a/include/configs/imx8mm_evk.h +++ b/include/configs/imx8mm_evk.h @@ -10,6 +10,7 @@ #include #include +#define CONFIG_SYS_BOOTM_LEN (32 * SZ_1M) #define CONFIG_SPL_MAX_SIZE (148 * 1024) #define CONFIG_SYS_MONITOR_LEN SZ_512K #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR