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Commit 48516298 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: reset flow updates 



As communicated with the firmware & hardware teams

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent cded9369

drivers/net/wireless/ath/wil6210/main.c

+18 −5
Original line number Diff line number Diff line
@@ -400,7 +400,7 @@ static inline void wil_release_cpu(struct wil6210_priv *wil) 
static int wil_target_reset(struct wil6210_priv *wil)

{

	int delay = 0;

	u32 hw_state;

	u32 x;

	u32 rev_id;

	bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW);
@@ -415,9 +415,22 @@ static int wil_target_reset(struct wil6210_priv *wil) 
	S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);



	wil_halt_cpu(wil);

	C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); /* 40 MHz */



	if (is_sparrow) {

		S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN);

		/* XTAL stabilization should take about 3ms */

		usleep_range(5000, 7000);

		x = R(RGF_CAF_PLL_LOCK_STATUS);

		if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) {

			wil_err(wil, "Xtal stabilization timeout\n"

				"RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x);

			return -ETIME;

		}

		/* switch 10k to XTAL*/

		C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF);

		/* 40 MHz */

		C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL);



		W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f);

		W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf);

	}
@@ -458,13 +471,13 @@ static int wil_target_reset(struct wil6210_priv *wil) 
	/* wait until device ready. typical time is 200..250 msec */

	do {

		msleep(RST_DELAY);

		hw_state = R(RGF_USER_HW_MACHINE_STATE);

		x = R(RGF_USER_HW_MACHINE_STATE);

		if (delay++ > RST_COUNT) {

			wil_err(wil, "Reset not completed, hw_state 0x%08x\n",

				hw_state);

				x);

			return -ETIME;

		}

	} while (hw_state != HW_MACHINE_BOOT_DONE);

	} while (x != HW_MACHINE_BOOT_DONE);



	/* TODO: Erez check rev_id != 1 */

	if (!is_sparrow && (rev_id != 1))

drivers/net/wireless/ath/wil6210/wil6210.h

+6 −0
Original line number Diff line number Diff line
@@ -117,6 +117,8 @@ struct RGF_ICR { 
	#define BIT_USER_USER_ICR_SW_INT_2	BIT(18)

#define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0	(0x880c18)

#define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1	(0x880c2c)

#define RGF_USER_SPARROW_M_4			(0x880c50) /* Sparrow */

	#define BIT_SPARROW_M_4_SEL_SLEEP_OR_REF	BIT(2)



#define RGF_DMA_EP_TX_ICR		(0x881bb4) /* struct RGF_ICR */

	#define BIT_DMA_EP_TX_ICR_TX_DONE	BIT(0)
@@ -152,6 +154,10 @@ struct RGF_ICR { 
#define RGF_MAC_MTRL_COUNTER_0		(0x886aa8)



#define RGF_CAF_ICR			(0x88946c) /* struct RGF_ICR */

#define RGF_CAF_OSC_CONTROL		(0x88afa4)

	#define BIT_CAF_OSC_XTAL_EN		BIT(0)

#define RGF_CAF_PLL_LOCK_STATUS		(0x88afec)

	#define BIT_CAF_OSC_DIG_XTAL_STABLE	BIT(0)



/* popular locations */

#define HOST_MBOX   HOSTADDR(RGF_USER_USER_SCRATCH_PAD)