From:   "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To:     andersson@kernel.org, mathieu.poirier@linaro.org,
        shawnguo@kernel.org, s.hauer@pengutronix.de,
        arnaud.pouliquen@foss.st.com
Cc:     kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
        linux-remoteproc@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Peng Fan <peng.fan@nxp.com>
Subject: [PATCH V2 6/6] remoteproc: imx_rproc: set address of .interrupts section as bootaddr
Date:   Fri, 27 Jan 2023 17:22:46 +0800
Message-Id: <20230127092246.1470865-7-peng.fan@oss.nxp.com>
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References: <20230127092246.1470865-1-peng.fan@oss.nxp.com>
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From: Peng Fan <peng.fan@nxp.com>

i.MX93 M33 has ROM, it needs the ".interrupts" section address to start
M33 firmware. 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.

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

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index f5ee0c9bb09d..59cca5ac3045 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:
@@ -664,6 +665,13 @@ 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;
-- 
2.37.1