From 35cb51b2162a1a7c5cd977f92595e60ab14d3b22 Mon Sep 17 00:00:00 2001 From: Chi-Hsien Lin Date: Wed, 21 Nov 2018 07:53:47 +0000 Subject: [PATCH] brcmfmac: add support for CYW43012 SDIO chipset CYW43012 is a 1x1 802.11a/b/g/n Dual-Band HT20, 256-QAM/Turbo QAM. It is an Ultra Low Power WLAN+BT combo chip. Reviewed-by: Arend van Spriel Signed-off-by: Chi-Hsien Lin Signed-off-by: Praveen Babu C Signed-off-by: Kalle Valo --- .../broadcom/brcm80211/brcmfmac/bcmsdh.c | 1 + .../broadcom/brcm80211/brcmfmac/chip.c | 14 +++- .../broadcom/brcm80211/brcmfmac/sdio.c | 74 ++++++++++++++++--- .../broadcom/brcm80211/include/brcm_hw_ids.h | 1 + include/linux/mmc/sdio_ids.h | 1 + 5 files changed, 78 insertions(+), 13 deletions(-) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c @@ -970,6 +970,7 @@ static const struct sdio_device_id brcmf BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4354), BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4356), BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_CYPRESS_4373), + BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_CYPRESS_43012), { /* end: all zeroes */ } }; MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids); --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c @@ -165,6 +165,7 @@ struct sbconfig { #define SRCI_LSS_MASK 0x00f00000 #define SRCI_LSS_SHIFT 20 #define SRCI_SRNB_MASK 0xf0 +#define SRCI_SRNB_MASK_EXT 0x100 #define SRCI_SRNB_SHIFT 4 #define SRCI_SRBSZ_MASK 0xf #define SRCI_SRBSZ_SHIFT 0 @@ -592,7 +593,13 @@ static void brcmf_chip_socram_ramsize(st if (lss != 0) *ramsize += (1 << ((lss - 1) + SR_BSZ_BASE)); } else { - nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; + /* length of SRAM Banks increased for corerev greater than 23 */ + if (sr->pub.rev >= 23) { + nb = (coreinfo & (SRCI_SRNB_MASK | SRCI_SRNB_MASK_EXT)) + >> SRCI_SRNB_SHIFT; + } else { + nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; + } for (i = 0; i < nb; i++) { retent = brcmf_chip_socram_banksize(sr, i, &banksize); *ramsize += banksize; @@ -1356,6 +1363,11 @@ bool brcmf_chip_sr_capable(struct brcmf_ addr = CORE_CC_REG(base, sr_control1); reg = chip->ops->read32(chip->ctx, addr); return reg != 0; + case CY_CC_43012_CHIP_ID: + addr = CORE_CC_REG(pmu->base, retention_ctl); + reg = chip->ops->read32(chip->ctx, addr); + return (reg & (PMU_RCTL_MACPHY_DISABLE_MASK | + PMU_RCTL_LOGIC_DISABLE_MASK)) == 0; default: addr = CORE_CC_REG(pmu->base, pmucapabilities_ext); reg = chip->ops->read32(chip->ctx, addr); --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -624,6 +624,7 @@ BRCMF_FW_DEF(43455, "brcmfmac43455-sdio" BRCMF_FW_DEF(4354, "brcmfmac4354-sdio"); BRCMF_FW_DEF(4356, "brcmfmac4356-sdio"); BRCMF_FW_DEF(4373, "brcmfmac4373-sdio"); +BRCMF_FW_DEF(43012, "brcmfmac43012-sdio"); static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = { BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143), @@ -643,7 +644,8 @@ static const struct brcmf_firmware_mappi BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFFC0, 43455), BRCMF_FW_ENTRY(BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, 4354), BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356), - BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373) + BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373), + BRCMF_FW_ENTRY(CY_CC_43012_CHIP_ID, 0xFFFFFFFF, 43012) }; static void pkt_align(struct sk_buff *p, int len, int align) @@ -683,6 +685,14 @@ brcmf_sdio_kso_control(struct brcmf_sdio /* 1st KSO write goes to AOS wake up core if device is asleep */ brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err); + /* In case of 43012 chip, the chip could go down immediately after + * KSO bit is cleared. So the further reads of KSO register could + * fail. Thereby just bailing out immediately after clearing KSO + * bit, to avoid polling of KSO bit. + */ + if (!on && bus->ci->chip == CY_CC_43012_CHIP_ID) + return err; + if (on) { /* device WAKEUP through KSO: * write bit 0 & read back until @@ -2416,6 +2426,14 @@ static int brcmf_sdio_tx_ctrlframe(struc return ret; } +static bool brcmf_chip_is_ulp(struct brcmf_chip *ci) +{ + if (ci->chip == CY_CC_43012_CHIP_ID) + return true; + else + return false; +} + static void brcmf_sdio_bus_stop(struct device *dev) { struct brcmf_bus *bus_if = dev_get_drvdata(dev); @@ -2423,7 +2441,7 @@ static void brcmf_sdio_bus_stop(struct d struct brcmf_sdio *bus = sdiodev->bus; struct brcmf_core *core = bus->sdio_core; u32 local_hostintmask; - u8 saveclk; + u8 saveclk, bpreq; int err; brcmf_dbg(TRACE, "Enter\n"); @@ -2450,9 +2468,14 @@ static void brcmf_sdio_bus_stop(struct d /* Force backplane clocks to assure F2 interrupt propagates */ saveclk = brcmf_sdiod_readb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, &err); - if (!err) - brcmf_sdiod_writeb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, - (saveclk | SBSDIO_FORCE_HT), &err); + if (!err) { + bpreq = saveclk; + bpreq |= brcmf_chip_is_ulp(bus->ci) ? + SBSDIO_HT_AVAIL_REQ : SBSDIO_FORCE_HT; + brcmf_sdiod_writeb(sdiodev, + SBSDIO_FUNC1_CHIPCLKCSR, + bpreq, &err); + } if (err) brcmf_err("Failed to force clock for F2: err %d\n", err); @@ -3345,20 +3368,45 @@ err: return bcmerror; } +static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus) +{ + if (bus->ci->chip == CY_CC_43012_CHIP_ID) + return true; + else + return false; +} + static void brcmf_sdio_sr_init(struct brcmf_sdio *bus) { int err = 0; u8 val; + u8 wakeupctrl; + u8 cardcap; + u8 chipclkcsr; brcmf_dbg(TRACE, "Enter\n"); + if (brcmf_chip_is_ulp(bus->ci)) { + wakeupctrl = SBSDIO_FUNC1_WCTRL_ALPWAIT_SHIFT; + chipclkcsr = SBSDIO_HT_AVAIL_REQ; + } else { + wakeupctrl = SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT; + chipclkcsr = SBSDIO_FORCE_HT; + } + + if (brcmf_sdio_aos_no_decode(bus)) { + cardcap = SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC; + } else { + cardcap = (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT | + SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT); + } + val = brcmf_sdiod_readb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL, &err); if (err) { brcmf_err("error reading SBSDIO_FUNC1_WAKEUPCTRL\n"); return; } - - val |= 1 << SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT; + val |= 1 << wakeupctrl; brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL, val, &err); if (err) { brcmf_err("error writing SBSDIO_FUNC1_WAKEUPCTRL\n"); @@ -3367,8 +3415,7 @@ static void brcmf_sdio_sr_init(struct br /* Add CMD14 Support */ brcmf_sdiod_func0_wb(bus->sdiodev, SDIO_CCCR_BRCM_CARDCAP, - (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT | - SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT), + cardcap, &err); if (err) { brcmf_err("error writing SDIO_CCCR_BRCM_CARDCAP\n"); @@ -3376,7 +3423,7 @@ static void brcmf_sdio_sr_init(struct br } brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, - SBSDIO_FORCE_HT, &err); + chipclkcsr, &err); if (err) { brcmf_err("error writing SBSDIO_FUNC1_CHIPCLKCSR\n"); return; @@ -4067,7 +4114,7 @@ static void brcmf_sdio_firmware_callback const struct firmware *code; void *nvram; u32 nvram_len; - u8 saveclk; + u8 saveclk, bpreq; u8 devctl; brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err); @@ -4101,8 +4148,11 @@ static void brcmf_sdio_firmware_callback /* Force clocks on backplane to be sure F2 interrupt propagates */ saveclk = brcmf_sdiod_readb(sdiod, SBSDIO_FUNC1_CHIPCLKCSR, &err); if (!err) { + bpreq = saveclk; + bpreq |= brcmf_chip_is_ulp(bus->ci) ? + SBSDIO_HT_AVAIL_REQ : SBSDIO_FORCE_HT; brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_CHIPCLKCSR, - (saveclk | SBSDIO_FORCE_HT), &err); + bpreq, &err); } if (err) { brcmf_err("Failed to force clock for F2: err %d\n", err); --- a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h +++ b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h @@ -60,6 +60,7 @@ #define BRCM_CC_43664_CHIP_ID 43664 #define BRCM_CC_4371_CHIP_ID 0x4371 #define CY_CC_4373_CHIP_ID 0x4373 +#define CY_CC_43012_CHIP_ID 43012 /* USB Device IDs */ #define BRCM_USB_43143_DEVICE_ID 0xbd1e --- a/include/linux/mmc/sdio_ids.h +++ b/include/linux/mmc/sdio_ids.h @@ -42,6 +42,7 @@ #define SDIO_DEVICE_ID_BROADCOM_4354 0x4354 #define SDIO_DEVICE_ID_BROADCOM_4356 0x4356 #define SDIO_DEVICE_ID_CYPRESS_4373 0x4373 +#define SDIO_DEVICE_ID_CYPRESS_43012 43012 #define SDIO_VENDOR_ID_INTEL 0x0089 #define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX 0x1402