diff mbox series

[V3,6/6] remoteproc: imx_rproc: set address of .interrupts section as bootaddr

Message ID 20230209063816.2782206-7-peng.fan@oss.nxp.com (mailing list archive)
State New, archived
Headers show
Series remoteproc: imx_rproc: support firmware in DDR | expand

Commit Message

Peng Fan (OSS) Feb. 9, 2023, 6:38 a.m. UTC
From: Peng Fan <peng.fan@nxp.com>

i.MX93 M33 has ROM, it needs the ".interrupts" section address to start
M33 firmware, because the PC and Stack is stored in the first 8 bytes of
section ".interrupts". In current design, the Arm Trusted Firmware(ATF)
use TCML start address when the 2nd arg is 0 when SMC call. So When the
M33 firmware is built with TCML address, it works well.

However when M33 firmware is built to run in DDR, we need pass the
".interrupts" address as 2nd arg to ATF to start M33 firmwrae.

If there is no ".interrupts", it just return bootaddr

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/remoteproc/imx_rproc.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 2265eddef4e9..ec5b1d8ed8a0 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -374,7 +374,8 @@  static int imx_rproc_start(struct rproc *rproc)
 					 dcfg->src_start);
 		break;
 	case IMX_RPROC_SMC:
-		arm_smccc_smc(IMX_SIP_RPROC, IMX_SIP_RPROC_START, 0, 0, 0, 0, 0, 0, &res);
+		arm_smccc_smc(IMX_SIP_RPROC, IMX_SIP_RPROC_START, rproc->bootaddr,
+			      0, 0, 0, 0, 0, &res);
 		ret = res.a0;
 		break;
 	case IMX_RPROC_SCU_API:
@@ -663,6 +664,13 @@  static u64 imx_rproc_get_boot_addr(struct rproc *rproc, const struct firmware *f
 		 */
 		writel(*(u32 *)(elf_data + offset), va);
 		writel(*(u32 *)(elf_data + offset + 4), va + 4);
+	} else if (priv->dcfg->devtype == IMX_RPROC_IMX93) {
+		/* i.MX93 Cortex-M33 has ROM, it only needs the section address */
+		shdr = rproc_elf_find_shdr(rproc, fw, ".interrupts");
+		if (!shdr)
+			return bootaddr;
+
+		return elf_shdr_get_sh_addr(class, shdr);
 	}
 
 	return bootaddr;