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qcacmn: Add WAR to confirm WBM IDLE ring LSB write

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On Lahaina platform it is seen that WBM IDLE ring init is failing,
Write to WBM_IDLE link ring LSB write is failing.
Add temporary WAR to do back to back write of WBM IDLE link ring
LSB address config register.

Change-Id: I7f72abb7226e1d7beee127ebda88488172147f21
CRs-Fixed: 2647762
This commit is contained in:
Manjunathappa Prakash 2019-09-02 00:03:00 -07:00 • committed by nshrivas
commit 3142406ced
1 changed files with 25 additions and 0 deletions
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25
hal/wifi3.0/hal_generic_api.h
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@ -1777,6 +1777,29 @@ void hal_get_hw_hptp_generic(struct hal_soc *hal_soc,
}
}
#if defined(WBM_IDLE_LSB_WRITE_CONFIRM_WAR)
/**
* hal_wbm_idle_lsb_write_confirm() - Check and update WBM_IDLE_LINK ring LSB
* @srng: srng handle
*
* Return: None
*/
static void hal_wbm_idle_lsb_write_confirm(struct hal_srng *srng)
{
if (srng->ring_id == HAL_SRNG_WBM_IDLE_LINK) {
while (SRNG_SRC_REG_READ(srng, BASE_LSB) !=
((unsigned int)srng->ring_base_paddr & 0xffffffff))
SRNG_SRC_REG_WRITE(srng, BASE_LSB,
srng->ring_base_paddr &
0xffffffff);
}
}
#else
static void hal_wbm_idle_lsb_write_confirm(struct hal_srng *srng)
{
}
#endif
/**
* hal_srng_src_hw_init - Private function to initialize SRNG
* source ring HW
@ -1804,6 +1827,8 @@ void hal_srng_src_hw_init_generic(struct hal_soc *hal,
}
SRNG_SRC_REG_WRITE(srng, BASE_LSB, srng->ring_base_paddr & 0xffffffff);
hal_wbm_idle_lsb_write_confirm(srng);
reg_val = SRNG_SM(SRNG_SRC_FLD(BASE_MSB, RING_BASE_ADDR_MSB),
((uint64_t)(srng->ring_base_paddr) >> 32)) |
SRNG_SM(SRNG_SRC_FLD(BASE_MSB, RING_SIZE),