From 08cd9ef4eca0b53cdae190b718e4945408c7d3b8 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Tue, 21 Feb 2012 20:46:21 -0600 Subject: [PATCH] staging: tidspbridge: detect wdt3 feature at runtime In order to detect WDT feature on the dsp code, we need to find the symbol used to enable it inside the baseimage. This should fix the warning comming from L3 driver: WARNING: at arch/arm/mach-omap2/omap_l3_smx.c:161 omap3_l3_app_irq... In-band Error seen by IVA_SS at address 0 ... That occurs because the dsp tries to access wdt3 registers when the clock for those registers is not enabled. Reported-by: Felipe Contreras Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman --- drivers/staging/tidspbridge/core/tiomap3430.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index 670de0a..7862513 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -383,6 +383,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, u32 clk_cmd; struct io_mgr *hio_mgr; u32 ul_load_monitor_timer; + u32 wdt_en = 0; struct omap_dsp_platform_data *pdata = omap_dspbridge_dev->dev.platform_data; @@ -594,9 +595,12 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, if (!wait_for_start(dev_context, dw_sync_addr)) status = -ETIMEDOUT; - /* Start wdt */ - dsp_wdt_sm_set((void *)ul_shm_base); - dsp_wdt_enable(true); + dev_get_symbol(dev_context->dev_obj, "_WDT_enable", &wdt_en); + if (wdt_en) { + /* Start wdt */ + dsp_wdt_sm_set((void *)ul_shm_base); + dsp_wdt_enable(true); + } status = dev_get_io_mgr(dev_context->dev_obj, &hio_mgr); if (hio_mgr) { -- 2.7.4