diff mbox

[v7,2/4] remoteproc: qcom: refactor mss fw image loading sequence

Message ID 1500634173-24416-3-git-send-email-akdwived@codeaurora.org (mailing list archive)
State Superseded
Headers show

Commit Message

Dwivedi, Avaneesh Kumar (avani) July 21, 2017, 10:49 a.m. UTC
This patch refactor code to first load all firmware blobs
and then update modem proc to authenticate and boot fw.

Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5_pil.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

Comments

Bjorn Andersson Oct. 12, 2017, 6:12 p.m. UTC | #1
On Fri 21 Jul 03:49 PDT 2017, Avaneesh Kumar Dwivedi wrote:

> This patch refactor code to first load all firmware blobs
> and then update modem proc to authenticate and boot fw.
> 

Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
> ---
>  drivers/remoteproc/qcom_q6v5_pil.c | 19 ++++++++-----------
>  1 file changed, 8 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
> index 8fd697a..f5f8850 100644
> --- a/drivers/remoteproc/qcom_q6v5_pil.c
> +++ b/drivers/remoteproc/qcom_q6v5_pil.c
> @@ -503,7 +503,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>  	bool relocate = false;
>  	char seg_name[10];
>  	ssize_t offset;
> -	size_t size;
> +	size_t size = 0;
>  	void *ptr;
>  	int ret;
>  	int i;
> @@ -541,7 +541,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>  	}
>  
>  	mpss_reloc = relocate ? min_addr : qproc->mpss_phys;
> -
> +	/* Load firmware segments */
>  	for (i = 0; i < ehdr->e_phnum; i++) {
>  		phdr = &phdrs[i];
>  
> @@ -574,18 +574,15 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>  			memset(ptr + phdr->p_filesz, 0,
>  			       phdr->p_memsz - phdr->p_filesz);
>  		}
> -
> -		size = readl(qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
> -		if (!size) {
> -			boot_addr = relocate ? qproc->mpss_phys : min_addr;
> -			writel(boot_addr, qproc->rmb_base + RMB_PMI_CODE_START_REG);
> -			writel(RMB_CMD_LOAD_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
> -		}
> -
>  		size += phdr->p_memsz;
> -		writel(size, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
>  	}
>  
> +	/* Transfer ownership of modem ddr region with q6*/
> +	boot_addr = relocate ? qproc->mpss_phys : min_addr;
> +	writel(boot_addr, qproc->rmb_base + RMB_PMI_CODE_START_REG);
> +	writel(RMB_CMD_LOAD_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
> +	writel(size, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
> +
>  	ret = q6v5_rmb_mba_wait(qproc, RMB_MBA_AUTH_COMPLETE, 10000);
>  	if (ret == -ETIMEDOUT)
>  		dev_err(qproc->dev, "MPSS authentication timed out\n");
> -- 
> Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project.
> 
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diff mbox

Patch

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 8fd697a..f5f8850 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -503,7 +503,7 @@  static int q6v5_mpss_load(struct q6v5 *qproc)
 	bool relocate = false;
 	char seg_name[10];
 	ssize_t offset;
-	size_t size;
+	size_t size = 0;
 	void *ptr;
 	int ret;
 	int i;
@@ -541,7 +541,7 @@  static int q6v5_mpss_load(struct q6v5 *qproc)
 	}
 
 	mpss_reloc = relocate ? min_addr : qproc->mpss_phys;
-
+	/* Load firmware segments */
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
@@ -574,18 +574,15 @@  static int q6v5_mpss_load(struct q6v5 *qproc)
 			memset(ptr + phdr->p_filesz, 0,
 			       phdr->p_memsz - phdr->p_filesz);
 		}
-
-		size = readl(qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
-		if (!size) {
-			boot_addr = relocate ? qproc->mpss_phys : min_addr;
-			writel(boot_addr, qproc->rmb_base + RMB_PMI_CODE_START_REG);
-			writel(RMB_CMD_LOAD_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
-		}
-
 		size += phdr->p_memsz;
-		writel(size, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
 	}
 
+	/* Transfer ownership of modem ddr region with q6*/
+	boot_addr = relocate ? qproc->mpss_phys : min_addr;
+	writel(boot_addr, qproc->rmb_base + RMB_PMI_CODE_START_REG);
+	writel(RMB_CMD_LOAD_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
+	writel(size, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
+
 	ret = q6v5_rmb_mba_wait(qproc, RMB_MBA_AUTH_COMPLETE, 10000);
 	if (ret == -ETIMEDOUT)
 		dev_err(qproc->dev, "MPSS authentication timed out\n");