mirror of https://github.com/hak5/openwrt.git
97 lines
2.9 KiB
Diff
97 lines
2.9 KiB
Diff
From: Arend van Spriel <arend@broadcom.com>
|
|
Date: Wed, 11 Mar 2015 16:11:32 +0100
|
|
Subject: [PATCH] brcmfmac: take save&restore memory into account for SDIO
|
|
shared info
|
|
|
|
The firmware provides pointer to SDIO shared information at end of
|
|
RAM during firmware initialization. End of RAM is obviously determined
|
|
by the actual ram size, but part of that may be used for save&restore
|
|
memory. In that case another location in RAM will hold the pointer.
|
|
|
|
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
|
|
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
|
|
Signed-off-by: Arend van Spriel <arend@broadcom.com>
|
|
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
---
|
|
|
|
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
|
|
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
|
|
@@ -1067,44 +1067,47 @@ static inline bool brcmf_sdio_valid_shar
|
|
static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
|
|
struct sdpcm_shared *sh)
|
|
{
|
|
- u32 addr;
|
|
+ u32 addr = 0;
|
|
int rv;
|
|
u32 shaddr = 0;
|
|
struct sdpcm_shared_le sh_le;
|
|
__le32 addr_le;
|
|
|
|
- shaddr = bus->ci->rambase + bus->ci->ramsize - 4;
|
|
+ sdio_claim_host(bus->sdiodev->func[1]);
|
|
+ brcmf_sdio_bus_sleep(bus, false, false);
|
|
|
|
/*
|
|
* Read last word in socram to determine
|
|
* address of sdpcm_shared structure
|
|
*/
|
|
- sdio_claim_host(bus->sdiodev->func[1]);
|
|
- brcmf_sdio_bus_sleep(bus, false, false);
|
|
- rv = brcmf_sdiod_ramrw(bus->sdiodev, false, shaddr, (u8 *)&addr_le, 4);
|
|
- sdio_release_host(bus->sdiodev->func[1]);
|
|
+ shaddr = bus->ci->rambase + bus->ci->ramsize - 4;
|
|
+ if (!bus->ci->rambase && brcmf_chip_sr_capable(bus->ci))
|
|
+ shaddr -= bus->ci->srsize;
|
|
+ rv = brcmf_sdiod_ramrw(bus->sdiodev, false, shaddr,
|
|
+ (u8 *)&addr_le, 4);
|
|
if (rv < 0)
|
|
- return rv;
|
|
-
|
|
- addr = le32_to_cpu(addr_le);
|
|
-
|
|
- brcmf_dbg(SDIO, "sdpcm_shared address 0x%08X\n", addr);
|
|
+ goto fail;
|
|
|
|
/*
|
|
* Check if addr is valid.
|
|
* NVRAM length at the end of memory should have been overwritten.
|
|
*/
|
|
+ addr = le32_to_cpu(addr_le);
|
|
if (!brcmf_sdio_valid_shared_address(addr)) {
|
|
- brcmf_err("invalid sdpcm_shared address 0x%08X\n",
|
|
- addr);
|
|
- return -EINVAL;
|
|
+ brcmf_err("invalid sdpcm_shared address 0x%08X\n", addr);
|
|
+ rv = -EINVAL;
|
|
+ goto fail;
|
|
}
|
|
|
|
+ brcmf_dbg(INFO, "sdpcm_shared address 0x%08X\n", addr);
|
|
+
|
|
/* Read hndrte_shared structure */
|
|
rv = brcmf_sdiod_ramrw(bus->sdiodev, false, addr, (u8 *)&sh_le,
|
|
sizeof(struct sdpcm_shared_le));
|
|
if (rv < 0)
|
|
- return rv;
|
|
+ goto fail;
|
|
+
|
|
+ sdio_release_host(bus->sdiodev->func[1]);
|
|
|
|
/* Endianness */
|
|
sh->flags = le32_to_cpu(sh_le.flags);
|
|
@@ -1121,8 +1124,13 @@ static int brcmf_sdio_readshared(struct
|
|
sh->flags & SDPCM_SHARED_VERSION_MASK);
|
|
return -EPROTO;
|
|
}
|
|
-
|
|
return 0;
|
|
+
|
|
+fail:
|
|
+ brcmf_err("unable to obtain sdpcm_shared info: rv=%d (addr=0x%x)\n",
|
|
+ rv, addr);
|
|
+ sdio_release_host(bus->sdiodev->func[1]);
|
|
+ return rv;
|
|
}
|
|
|
|
static void brcmf_sdio_get_console_addr(struct brcmf_sdio *bus)
|