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ath11k: pci: check TCSR_SOC_HW_VERSION 

There are different versions of QCA6390. Check TCSR_SOC_HW_VERSION to make sure
that the device is hw2.0, all the rest are unsupported.

This needs to be checked after ath11k_pci_claim() so move the whole switch choosing hw_ver.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-5-git-send-email-kvalo@codeaurora.org
This commit is contained in:
Kalle Valo 2020-09-29 20:15:32 +03:00
parent 2626c26970
commit 18ac1665e7
1 changed files with 34 additions and 12 deletions
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46
drivers/net/wireless/ath/ath11k/pci.c
View File

@ -24,6 +24,10 @@
#define WINDOW_START 0x80000
#define WINDOW_RANGE_MASK GENMASK(18, 0)
#define TCSR_SOC_HW_VERSION 0x0224
#define TCSR_SOC_HW_VERSION_MAJOR_MASK GENMASK(16, 8)
#define TCSR_SOC_HW_VERSION_MINOR_MASK GENMASK(7, 0)
#define QCA6390_DEVICE_ID 0x1101
static const struct pci_device_id ath11k_pci_id_table[] = {
@ -839,21 +843,11 @@ static int ath11k_pci_probe(struct pci_dev *pdev,
{
struct ath11k_base *ab;
struct ath11k_pci *ab_pci;
enum ath11k_hw_rev hw_rev;
u32 soc_hw_version, soc_hw_version_major, soc_hw_version_minor;
int ret;
dev_warn(&pdev->dev, "WARNING: ath11k PCI support is experimental!\n");
switch (pci_dev->device) {
case QCA6390_DEVICE_ID:
hw_rev = ATH11K_HW_QCA6390_HW20;
break;
default:
dev_err(&pdev->dev, "Unknown PCI device found: 0x%x\n",
pci_dev->device);
return -ENOTSUPP;
}
ab = ath11k_core_alloc(&pdev->dev, sizeof(*ab_pci), ATH11K_BUS_PCI,
&ath11k_pci_bus_params);
if (!ab) {
@ -862,7 +856,6 @@ static int ath11k_pci_probe(struct pci_dev *pdev,
}
ab->dev = &pdev->dev;
ab->hw_rev = hw_rev;
pci_set_drvdata(pdev, ab);
ab_pci = ath11k_pci_priv(ab);
ab_pci->dev_id = pci_dev->device;
@ -878,6 +871,35 @@ static int ath11k_pci_probe(struct pci_dev *pdev,
goto err_free_core;
}
switch (pci_dev->device) {
case QCA6390_DEVICE_ID:
soc_hw_version = ath11k_pci_read32(ab, TCSR_SOC_HW_VERSION);
soc_hw_version_major = FIELD_GET(TCSR_SOC_HW_VERSION_MAJOR_MASK,
soc_hw_version);
soc_hw_version_minor = FIELD_GET(TCSR_SOC_HW_VERSION_MINOR_MASK,
soc_hw_version);
ath11k_dbg(ab, ATH11K_DBG_PCI, "pci tcsr_soc_hw_version major %d minor %d\n",
soc_hw_version_major, soc_hw_version_minor);
switch (soc_hw_version_major) {
case 2:
ab->hw_rev = ATH11K_HW_QCA6390_HW20;
break;
default:
dev_err(&pdev->dev, "Unsupported QCA6390 SOC hardware version: %d %d\n",
soc_hw_version_major, soc_hw_version_minor);
ret = -EOPNOTSUPP;
goto err_pci_free_region;
}
break;
default:
dev_err(&pdev->dev, "Unknown PCI device found: 0x%x\n",
pci_dev->device);
ret = -EOPNOTSUPP;
goto err_pci_free_region;
}
ret = ath11k_pci_enable_msi(ab_pci);
if (ret) {
ath11k_err(ab, "failed to enable msi: %d\n", ret);