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brcmfmac: use device memsize config from fw if defined 

Newer type pcie devices have memory which get shared between fw and
hw. The division of this memory is done firmware compile time. As a
result the ramsize as used by driver needs to be adjusted for this.
This is done by reading the memory size from the firmware.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Hante Meuleman 2016-02-17 11:26:57 +01:00 committed by Kalle Valo
parent cd2bc19c61
commit 6ac27689b0
1 changed files with 33 additions and 0 deletions
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33
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@ -207,6 +207,10 @@ static struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
#define BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG 0x4F4
#define BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB 3
/* Magic number at a magic location to find RAM size */
#define BRCMF_RAMSIZE_MAGIC 0x534d4152 /* SMAR */
#define BRCMF_RAMSIZE_OFFSET 0x6c
struct brcmf_pcie_console {
u32 base_addr;
@ -1412,6 +1416,28 @@ static const struct brcmf_bus_ops brcmf_pcie_bus_ops = {
};
static void
brcmf_pcie_adjust_ramsize(struct brcmf_pciedev_info *devinfo, u8 *data,
u32 data_len)
{
__le32 *field;
u32 newsize;
if (data_len < BRCMF_RAMSIZE_OFFSET + 8)
return;
field = (__le32 *)&data[BRCMF_RAMSIZE_OFFSET];
if (le32_to_cpup(field) != BRCMF_RAMSIZE_MAGIC)
return;
field++;
newsize = le32_to_cpup(field);
brcmf_dbg(PCIE, "Found ramsize info in FW, adjusting to 0x%x\n",
newsize);
devinfo->ci->ramsize = newsize;
}
static int
brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo,
u32 sharedram_addr)
@ -1694,6 +1720,13 @@ static void brcmf_pcie_setup(struct device *dev, const struct firmware *fw,
brcmf_pcie_attach(devinfo);
/* Some of the firmwares have the size of the memory of the device
* defined inside the firmware. This is because part of the memory in
* the device is shared and the devision is determined by FW. Parse
* the firmware and adjust the chip memory size now.
*/
brcmf_pcie_adjust_ramsize(devinfo, (u8 *)fw->data, fw->size);
ret = brcmf_pcie_download_fw_nvram(devinfo, fw, nvram, nvram_len);
if (ret)
goto fail;