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wil6210: update target reset to support new HW 

Support for new chip revision. Revision read from the
internal register, PCIE config's "revision id" register
do not indicate HW version properly

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev 2014-03-17 15:34:10 +02:00 committed by John W. Linville
parent 2232abd59a
commit 36b10a7239
3 changed files with 34 additions and 1 deletions
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29
drivers/net/wireless/ath/wil6210/main.c
View File

@ -230,14 +230,22 @@ void wil_priv_deinit(struct wil6210_priv *wil)
static void wil_target_reset(struct wil6210_priv *wil)
{
int delay = 100;
u32 baud_rate;
u32 rev_id;
wil_dbg_misc(wil, "Resetting...\n");
/* register read */
#define R(a) ioread32(wil->csr + HOSTADDR(a))
/* register write */
#define W(a, v) iowrite32(v, wil->csr + HOSTADDR(a))
/* register set = read, OR, write */
#define S(a, v) iowrite32(ioread32(wil->csr + HOSTADDR(a)) | v, \
wil->csr + HOSTADDR(a))
wil->hw_version = R(RGF_FW_REV_ID);
rev_id = wil->hw_version & 0xff;
/* hpal_perst_from_pad_src_n_mask */
S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT(6));
/* car_perst_rst_src_n_mask */
@ -257,11 +265,30 @@ static void wil_target_reset(struct wil6210_priv *wil)
W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001);
W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080);
if (rev_id == 1) {
W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080);
} else {
W(RGF_LOS_COUNTER_CTL, BIT(6) | BIT(8));
W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000);
}
W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
/* wait until device ready. Use baud rate */
do {
msleep(1);
baud_rate = R(RGF_USER_SERIAL_BAUD_RATE);
if (delay-- < 0) {
wil_err(wil, "Reset not completed\n");
return;
}
} while (baud_rate != 0x15e);
if (rev_id == 2)
W(RGF_LOS_COUNTER_CTL, BIT(8));
wil_dbg_misc(wil, "Reset completed\n");
#undef R
#undef W
#undef S
}

2
drivers/net/wireless/ath/wil6210/pcie_bus.c
View File

@ -74,6 +74,8 @@ static int wil_if_pcie_enable(struct wil6210_priv *wil)
if (rc)
goto release_irq;
wil_info(wil, "HW version: 0x%08x\n", wil->hw_version);
return 0;
release_irq:

4
drivers/net/wireless/ath/wil6210/wil6210.h
View File

@ -74,6 +74,9 @@ struct RGF_ICR {
} __packed;
/* registers - FW addresses */
#define RGF_FW_REV_ID (0x880a8c) /* chip revision */
#define RGF_USER_SERIAL_BAUD_RATE (0x880050)
#define RGF_LOS_COUNTER_CTL (0x882dc4)
#define RGF_USER_USER_SCRATCH_PAD (0x8802bc)
#define RGF_USER_USER_ICR (0x880b4c) /* struct RGF_ICR */
#define BIT_USER_USER_ICR_SW_INT_2 BIT(18)
@ -342,6 +345,7 @@ struct wil6210_priv {
void __iomem *csr;
ulong status;
u32 fw_version;
u32 hw_version;
u8 n_mids; /* number of additional MIDs as reported by FW */
/* profile */
u32 monitor_flags;