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ath10k: fix reading sram contents for QCA4019

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With QCA4019 platform, SRAM address can be accessed directly from host but
currently, we are assuming sram addresses cannot be accessed directly and
hence we convert the addresses.

While there, clean up growing hw checks during conversion of target CPU
address to CE address. Now we have function pointer pertaining to different
chips.

Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Ashok Raj Nagarajan
2017-02-01 00:06:51 +05:30
committed by Kalle Valo
parent cb4281528b
commit 7f622593cc
3 changed files with 60 additions and 19 deletions
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23
drivers/net/wireless/ath/ath10k/ahb.c
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@@ -33,6 +33,9 @@ static const struct of_device_id ath10k_ahb_of_match[] = {
MODULE_DEVICE_TABLE(of, ath10k_ahb_of_match);
#define QCA4019_SRAM_ADDR 0x000C0000
#define QCA4019_SRAM_LEN 0x00040000 /* 256 kb */
static inline struct ath10k_ahb *ath10k_ahb_priv(struct ath10k *ar)
{
return &((struct ath10k_pci *)ar->drv_priv)->ahb[0];
@@ -699,6 +702,25 @@ out:
return ret;
}
static u32 ath10k_ahb_qca4019_targ_cpu_to_ce_addr(struct ath10k *ar, u32 addr)
{
u32 val = 0, region = addr & 0xfffff;
val = ath10k_pci_read32(ar, PCIE_BAR_REG_ADDRESS);
if (region >= QCA4019_SRAM_ADDR && region <=
(QCA4019_SRAM_ADDR + QCA4019_SRAM_LEN)) {
/* SRAM contents for QCA4019 can be directly accessed and
* no conversions are required
*/
val |= region;
} else {
val |= 0x100000 | region;
}
return val;
}
static const struct ath10k_hif_ops ath10k_ahb_hif_ops = {
.tx_sg = ath10k_pci_hif_tx_sg,
.diag_read = ath10k_pci_hif_diag_read,
@@ -766,6 +788,7 @@ static int ath10k_ahb_probe(struct platform_device *pdev)
ar_pci->mem_len = ar_ahb->mem_len;
ar_pci->ar = ar;
ar_pci->bus_ops = &ath10k_ahb_bus_ops;
ar_pci->targ_cpu_to_ce_addr = ath10k_ahb_qca4019_targ_cpu_to_ce_addr;
ret = ath10k_pci_setup_resource(ar);
if (ret) {