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1 From 35cb51b2162a1a7c5cd977f92595e60ab14d3b22 Mon Sep 17 00:00:00 2001
2 From: Chi-Hsien Lin <Chi-Hsien.Lin@cypress.com>
3 Date: Wed, 21 Nov 2018 07:53:47 +0000
4 Subject: [PATCH] brcmfmac: add support for CYW43012 SDIO chipset
5
6 CYW43012 is a 1x1 802.11a/b/g/n Dual-Band HT20, 256-QAM/Turbo QAM. It
7 is an Ultra Low Power WLAN+BT combo chip.
8
9 Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
10 Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
11 Signed-off-by: Praveen Babu C <praveen.chandran@cypress.com>
12 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
13 ---
14 .../broadcom/brcm80211/brcmfmac/bcmsdh.c | 1 +
15 .../broadcom/brcm80211/brcmfmac/chip.c | 14 +++-
16 .../broadcom/brcm80211/brcmfmac/sdio.c | 74 ++++++++++++++++---
17 .../broadcom/brcm80211/include/brcm_hw_ids.h | 1 +
18 include/linux/mmc/sdio_ids.h | 1 +
19 5 files changed, 78 insertions(+), 13 deletions(-)
20
21 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
22 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
23 @@ -970,6 +970,7 @@ static const struct sdio_device_id brcmf
24 BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4354),
25 BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_BROADCOM_4356),
26 BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_CYPRESS_4373),
27 + BRCMF_SDIO_DEVICE(SDIO_DEVICE_ID_CYPRESS_43012),
28 { /* end: all zeroes */ }
29 };
30 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
31 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
32 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
33 @@ -165,6 +165,7 @@ struct sbconfig {
34 #define SRCI_LSS_MASK 0x00f00000
35 #define SRCI_LSS_SHIFT 20
36 #define SRCI_SRNB_MASK 0xf0
37 +#define SRCI_SRNB_MASK_EXT 0x100
38 #define SRCI_SRNB_SHIFT 4
39 #define SRCI_SRBSZ_MASK 0xf
40 #define SRCI_SRBSZ_SHIFT 0
41 @@ -592,7 +593,13 @@ static void brcmf_chip_socram_ramsize(st
42 if (lss != 0)
43 *ramsize += (1 << ((lss - 1) + SR_BSZ_BASE));
44 } else {
45 - nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT;
46 + /* length of SRAM Banks increased for corerev greater than 23 */
47 + if (sr->pub.rev >= 23) {
48 + nb = (coreinfo & (SRCI_SRNB_MASK | SRCI_SRNB_MASK_EXT))
49 + >> SRCI_SRNB_SHIFT;
50 + } else {
51 + nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT;
52 + }
53 for (i = 0; i < nb; i++) {
54 retent = brcmf_chip_socram_banksize(sr, i, &banksize);
55 *ramsize += banksize;
56 @@ -1356,6 +1363,11 @@ bool brcmf_chip_sr_capable(struct brcmf_
57 addr = CORE_CC_REG(base, sr_control1);
58 reg = chip->ops->read32(chip->ctx, addr);
59 return reg != 0;
60 + case CY_CC_43012_CHIP_ID:
61 + addr = CORE_CC_REG(pmu->base, retention_ctl);
62 + reg = chip->ops->read32(chip->ctx, addr);
63 + return (reg & (PMU_RCTL_MACPHY_DISABLE_MASK |
64 + PMU_RCTL_LOGIC_DISABLE_MASK)) == 0;
65 default:
66 addr = CORE_CC_REG(pmu->base, pmucapabilities_ext);
67 reg = chip->ops->read32(chip->ctx, addr);
68 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
69 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
70 @@ -624,6 +624,7 @@ BRCMF_FW_DEF(43455, "brcmfmac43455-sdio"
71 BRCMF_FW_DEF(4354, "brcmfmac4354-sdio");
72 BRCMF_FW_DEF(4356, "brcmfmac4356-sdio");
73 BRCMF_FW_DEF(4373, "brcmfmac4373-sdio");
74 +BRCMF_FW_DEF(43012, "brcmfmac43012-sdio");
75
76 static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = {
77 BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
78 @@ -643,7 +644,8 @@ static const struct brcmf_firmware_mappi
79 BRCMF_FW_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFFC0, 43455),
80 BRCMF_FW_ENTRY(BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, 4354),
81 BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356),
82 - BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373)
83 + BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373),
84 + BRCMF_FW_ENTRY(CY_CC_43012_CHIP_ID, 0xFFFFFFFF, 43012)
85 };
86
87 static void pkt_align(struct sk_buff *p, int len, int align)
88 @@ -683,6 +685,14 @@ brcmf_sdio_kso_control(struct brcmf_sdio
89 /* 1st KSO write goes to AOS wake up core if device is asleep */
90 brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err);
91
92 + /* In case of 43012 chip, the chip could go down immediately after
93 + * KSO bit is cleared. So the further reads of KSO register could
94 + * fail. Thereby just bailing out immediately after clearing KSO
95 + * bit, to avoid polling of KSO bit.
96 + */
97 + if (!on && bus->ci->chip == CY_CC_43012_CHIP_ID)
98 + return err;
99 +
100 if (on) {
101 /* device WAKEUP through KSO:
102 * write bit 0 & read back until
103 @@ -2416,6 +2426,14 @@ static int brcmf_sdio_tx_ctrlframe(struc
104 return ret;
105 }
106
107 +static bool brcmf_chip_is_ulp(struct brcmf_chip *ci)
108 +{
109 + if (ci->chip == CY_CC_43012_CHIP_ID)
110 + return true;
111 + else
112 + return false;
113 +}
114 +
115 static void brcmf_sdio_bus_stop(struct device *dev)
116 {
117 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
118 @@ -2423,7 +2441,7 @@ static void brcmf_sdio_bus_stop(struct d
119 struct brcmf_sdio *bus = sdiodev->bus;
120 struct brcmf_core *core = bus->sdio_core;
121 u32 local_hostintmask;
122 - u8 saveclk;
123 + u8 saveclk, bpreq;
124 int err;
125
126 brcmf_dbg(TRACE, "Enter\n");
127 @@ -2450,9 +2468,14 @@ static void brcmf_sdio_bus_stop(struct d
128 /* Force backplane clocks to assure F2 interrupt propagates */
129 saveclk = brcmf_sdiod_readb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
130 &err);
131 - if (!err)
132 - brcmf_sdiod_writeb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
133 - (saveclk | SBSDIO_FORCE_HT), &err);
134 + if (!err) {
135 + bpreq = saveclk;
136 + bpreq |= brcmf_chip_is_ulp(bus->ci) ?
137 + SBSDIO_HT_AVAIL_REQ : SBSDIO_FORCE_HT;
138 + brcmf_sdiod_writeb(sdiodev,
139 + SBSDIO_FUNC1_CHIPCLKCSR,
140 + bpreq, &err);
141 + }
142 if (err)
143 brcmf_err("Failed to force clock for F2: err %d\n",
144 err);
145 @@ -3345,20 +3368,45 @@ err:
146 return bcmerror;
147 }
148
149 +static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus)
150 +{
151 + if (bus->ci->chip == CY_CC_43012_CHIP_ID)
152 + return true;
153 + else
154 + return false;
155 +}
156 +
157 static void brcmf_sdio_sr_init(struct brcmf_sdio *bus)
158 {
159 int err = 0;
160 u8 val;
161 + u8 wakeupctrl;
162 + u8 cardcap;
163 + u8 chipclkcsr;
164
165 brcmf_dbg(TRACE, "Enter\n");
166
167 + if (brcmf_chip_is_ulp(bus->ci)) {
168 + wakeupctrl = SBSDIO_FUNC1_WCTRL_ALPWAIT_SHIFT;
169 + chipclkcsr = SBSDIO_HT_AVAIL_REQ;
170 + } else {
171 + wakeupctrl = SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT;
172 + chipclkcsr = SBSDIO_FORCE_HT;
173 + }
174 +
175 + if (brcmf_sdio_aos_no_decode(bus)) {
176 + cardcap = SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC;
177 + } else {
178 + cardcap = (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT |
179 + SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT);
180 + }
181 +
182 val = brcmf_sdiod_readb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL, &err);
183 if (err) {
184 brcmf_err("error reading SBSDIO_FUNC1_WAKEUPCTRL\n");
185 return;
186 }
187 -
188 - val |= 1 << SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT;
189 + val |= 1 << wakeupctrl;
190 brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL, val, &err);
191 if (err) {
192 brcmf_err("error writing SBSDIO_FUNC1_WAKEUPCTRL\n");
193 @@ -3367,8 +3415,7 @@ static void brcmf_sdio_sr_init(struct br
194
195 /* Add CMD14 Support */
196 brcmf_sdiod_func0_wb(bus->sdiodev, SDIO_CCCR_BRCM_CARDCAP,
197 - (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT |
198 - SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT),
199 + cardcap,
200 &err);
201 if (err) {
202 brcmf_err("error writing SDIO_CCCR_BRCM_CARDCAP\n");
203 @@ -3376,7 +3423,7 @@ static void brcmf_sdio_sr_init(struct br
204 }
205
206 brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
207 - SBSDIO_FORCE_HT, &err);
208 + chipclkcsr, &err);
209 if (err) {
210 brcmf_err("error writing SBSDIO_FUNC1_CHIPCLKCSR\n");
211 return;
212 @@ -4067,7 +4114,7 @@ static void brcmf_sdio_firmware_callback
213 const struct firmware *code;
214 void *nvram;
215 u32 nvram_len;
216 - u8 saveclk;
217 + u8 saveclk, bpreq;
218 u8 devctl;
219
220 brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err);
221 @@ -4101,8 +4148,11 @@ static void brcmf_sdio_firmware_callback
222 /* Force clocks on backplane to be sure F2 interrupt propagates */
223 saveclk = brcmf_sdiod_readb(sdiod, SBSDIO_FUNC1_CHIPCLKCSR, &err);
224 if (!err) {
225 + bpreq = saveclk;
226 + bpreq |= brcmf_chip_is_ulp(bus->ci) ?
227 + SBSDIO_HT_AVAIL_REQ : SBSDIO_FORCE_HT;
228 brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_CHIPCLKCSR,
229 - (saveclk | SBSDIO_FORCE_HT), &err);
230 + bpreq, &err);
231 }
232 if (err) {
233 brcmf_err("Failed to force clock for F2: err %d\n", err);
234 --- a/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
235 +++ b/drivers/net/wireless/broadcom/brcm80211/include/brcm_hw_ids.h
236 @@ -60,6 +60,7 @@
237 #define BRCM_CC_43664_CHIP_ID 43664
238 #define BRCM_CC_4371_CHIP_ID 0x4371
239 #define CY_CC_4373_CHIP_ID 0x4373
240 +#define CY_CC_43012_CHIP_ID 43012
241
242 /* USB Device IDs */
243 #define BRCM_USB_43143_DEVICE_ID 0xbd1e
244 --- a/include/linux/mmc/sdio_ids.h
245 +++ b/include/linux/mmc/sdio_ids.h
246 @@ -42,6 +42,7 @@
247 #define SDIO_DEVICE_ID_BROADCOM_4354 0x4354
248 #define SDIO_DEVICE_ID_BROADCOM_4356 0x4356
249 #define SDIO_DEVICE_ID_CYPRESS_4373 0x4373
250 +#define SDIO_DEVICE_ID_CYPRESS_43012 43012
251
252 #define SDIO_VENDOR_ID_INTEL 0x0089
253 #define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX 0x1402
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