Commit 1e9ab4dd authored by Piotr Haber's avatar Piotr Haber Committed by John W. Linville

brcmfmac: setup SDIO reset behavior

Set device in a manner that SDIO I/O card reset
will lead to WLAN backplane and PMU state reset.
Reviewed-by: default avatarHante Meuleman <meuleman@broadcom.com>
Reviewed-by: default avatarArend van Spriel <arend@broadcom.com>
Reviewed-by: default avatarPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: default avatarFranky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: default avatarPiotr Haber <phaber@broadcom.com>
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1640f28f
......@@ -3635,7 +3635,6 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
int err = 0;
int reg_addr;
u32 reg_val;
u8 idx;
bus->alp_only = true;
......@@ -3686,12 +3685,37 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
goto fail;
}
/* Set core control so an SDIO reset does a backplane reset */
idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_SDIO_DEV);
reg_addr = bus->ci->c_inf[idx].base +
offsetof(struct sdpcmd_regs, corecontrol);
reg_val = brcmf_sdio_regrl(bus->sdiodev, reg_addr, NULL);
brcmf_sdio_regwl(bus->sdiodev, reg_addr, reg_val | CC_BPRESEN, NULL);
/* Set card control so an SDIO card reset does a WLAN backplane reset */
reg_val = brcmf_sdio_regrb(bus->sdiodev,
SDIO_CCCR_BRCM_CARDCTRL, &err);
if (err)
goto fail;
reg_val |= SDIO_CCCR_BRCM_CARDCTRL_WLANRESET;
brcmf_sdio_regwb(bus->sdiodev,
SDIO_CCCR_BRCM_CARDCTRL, reg_val, &err);
if (err)
goto fail;
/* set PMUControl so a backplane reset does PMU state reload */
reg_addr = CORE_CC_REG(bus->ci->c_inf[0].base,
pmucontrol);
reg_val = brcmf_sdio_regrl(bus->sdiodev,
reg_addr,
&err);
if (err)
goto fail;
reg_val |= (BCMA_CC_PMU_CTL_RES_RELOAD << BCMA_CC_PMU_CTL_RES_SHIFT);
brcmf_sdio_regwl(bus->sdiodev,
reg_addr,
reg_val,
&err);
if (err)
goto fail;
sdio_release_host(bus->sdiodev->func[1]);
......
......@@ -52,6 +52,8 @@
#define SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT 0x02
#define SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT 0x04
#define SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC 0x08
#define SDIO_CCCR_BRCM_CARDCTRL 0xf1
#define SDIO_CCCR_BRCM_CARDCTRL_WLANRESET 0x02
#define SDIO_CCCR_BRCM_SEPINT 0xf2
#define SDIO_SEPINT_MASK 0x01
......
......@@ -316,6 +316,9 @@
#define BCMA_CC_PMU_CTL 0x0600 /* PMU control */
#define BCMA_CC_PMU_CTL_ILP_DIV 0xFFFF0000 /* ILP div mask */
#define BCMA_CC_PMU_CTL_ILP_DIV_SHIFT 16
#define BCMA_CC_PMU_CTL_RES 0x00006000 /* reset control mask */
#define BCMA_CC_PMU_CTL_RES_SHIFT 13
#define BCMA_CC_PMU_CTL_RES_RELOAD 0x2 /* reload POR values */
#define BCMA_CC_PMU_CTL_PLL_UPD 0x00000400
#define BCMA_CC_PMU_CTL_NOILPONW 0x00000200 /* No ILP on wait */
#define BCMA_CC_PMU_CTL_HTREQEN 0x00000100 /* HT req enable */
......
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