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Commit 1ad03be3 authored by Kyle Yan's avatar Kyle Yan
Browse files

soc: qcom: pil: Reset the modem debug cookie register after reset 



Due to requiring to do a full reset on cold boot, the debug cookie
for modem needed to allow debugging of the modem subsystem is also
reset. Save the value of the debug cookie before reset and restore
it after.

Change-Id: I454c033f52e1fabb880c81d72707971342ccc0ca
Signed-off-by: default avatarKyle Yan <kyan@codeaurora.org>
parent 02f8039d

drivers/soc/qcom/pil-msa.c

+5 −0
Original line number Diff line number Diff line
@@ -510,6 +510,7 @@ static int pil_mss_reset(struct pil_desc *pil) 
{

	struct q6v5_data *drv = container_of(pil, struct q6v5_data, desc);

	phys_addr_t start_addr = pil_get_entry_addr(pil);

	u32 debug_val;

	int ret;



	if (drv->mba_dp_phys)
@@ -527,6 +528,9 @@ static int pil_mss_reset(struct pil_desc *pil) 
	if (ret)

		goto err_clks;



	/* Save state of modem debug register before full reset */

	debug_val = readl_relaxed(drv->reg_base + QDSP6SS_DBG_CFG);



	/* Assert reset to subsystem */

	pil_mss_assert_resets(drv);

	/* Wait 6 32kHz sleep cycles for reset */
@@ -535,6 +539,7 @@ static int pil_mss_reset(struct pil_desc *pil) 
	if (ret)

		goto err_restart;



	writel_relaxed(debug_val, drv->reg_base + QDSP6SS_DBG_CFG);

	if (modem_dbg_cfg)

		writel_relaxed(modem_dbg_cfg, drv->reg_base + QDSP6SS_DBG_CFG);