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Commit d9781fa2 authored by Deepak Katragadda's avatar Deepak Katragadda
Browse files

msm: pil-msa: Log RMB registers on modem bootup failure 



Add debug support to log RMB registers when modem bootup fails
either during initial boot or during SSR.

Change-Id: I866b5cdf7d5d7bdb8317d0f47f3a4e54c9c88bad
Signed-off-by: default avatarDeepak Katragadda <dkatraga@codeaurora.org>
parent 43827f8b

drivers/soc/qcom/pil-msa.c

+25 −2
Original line number Diff line number Diff line
@@ -69,6 +69,22 @@ module_param(pbl_mba_boot_timeout_ms, int, S_IRUGO | S_IWUSR); 
static int modem_auth_timeout_ms = 10000;

module_param(modem_auth_timeout_ms, int, S_IRUGO | S_IWUSR);



static void modem_log_rmb_regs(void __iomem *base)

{

	pr_err("RMB_MBA_IMAGE: %08x\n", readl_relaxed(base + RMB_MBA_IMAGE));

	pr_err("RMB_PBL_STATUS: %08x\n", readl_relaxed(base + RMB_PBL_STATUS));

	pr_err("RMB_MBA_COMMAND: %08x\n",

				readl_relaxed(base + RMB_MBA_COMMAND));

	pr_err("RMB_MBA_STATUS: %08x\n", readl_relaxed(base + RMB_MBA_STATUS));

	pr_err("RMB_PMI_META_DATA: %08x\n",

				readl_relaxed(base + RMB_PMI_META_DATA));

	pr_err("RMB_PMI_CODE_START: %08x\n",

				readl_relaxed(base + RMB_PMI_CODE_START));

	pr_err("RMB_PMI_CODE_LENGTH: %08x\n",

				readl_relaxed(base + RMB_PMI_CODE_LENGTH));



}



static int pil_mss_power_up(struct q6v5_data *drv)

{

	int ret = 0;
@@ -305,6 +321,7 @@ static int pil_mss_reset(struct pil_desc *pil) 
	return 0;



err_q6v5_reset:

	modem_log_rmb_regs(drv->rmb_base);

	pil_mss_disable_clks(drv);

err_clks:

	if (drv->restart_reg)
@@ -409,8 +426,11 @@ static int pil_msa_auth_modem_mdt(struct pil_desc *pil, const u8 *metadata, 


	dma_free_coherent(pil->dev, size, mdata_virt, mdata_phys);



	if (ret && drv->q6)

	if (ret) {

		modem_log_rmb_regs(drv->rmb_base);

		if (drv->q6)

			pil_mss_shutdown(pil);

	}

	return ret;

}
@@ -445,6 +465,7 @@ static int pil_msa_mba_verify_blob(struct pil_desc *pil, phys_addr_t phy_addr, 
	status = readl_relaxed(drv->rmb_base + RMB_MBA_STATUS);

	if (status < 0) {

		dev_err(pil->dev, "MBA returned error %d\n", status);

		modem_log_rmb_regs(drv->rmb_base);

		return -EINVAL;

	}
@@ -472,6 +493,8 @@ static int pil_msa_mba_auth(struct pil_desc *pil) 
		/* Reclaim MBA memory. */

		dma_free_coherent(pil->dev, MBA_SIZE, drv->q6->mba_virt,

							drv->q6->mba_phys);

	if (ret)

		modem_log_rmb_regs(drv->rmb_base);

	return ret;

}