@@ -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);
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> --- drivers/net/wireless/ath/ath11k/pci.c | 46 ++++++++++++++++++++++++++--------- 1 file changed, 34 insertions(+), 12 deletions(-)