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73 lines
2.4 KiB
73 lines
2.4 KiB
From: Hante Meuleman <meuleman@broadcom.com>
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Date: Wed, 17 Feb 2016 11:26:57 +0100
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Subject: [PATCH] brcmfmac: use device memsize config from fw if defined
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Newer type pcie devices have memory which get shared between fw and
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hw. The division of this memory is done firmware compile time. As a
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result the ramsize as used by driver needs to be adjusted for this.
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This is done by reading the memory size from the firmware.
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Reviewed-by: Arend Van Spriel <arend@broadcom.com>
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Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
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Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
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Signed-off-by: Arend van Spriel <arend@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@@ -207,6 +207,10 @@ static struct brcmf_firmware_mapping brc
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#define BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG 0x4F4
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#define BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB 3
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+/* Magic number at a magic location to find RAM size */
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+#define BRCMF_RAMSIZE_MAGIC 0x534d4152 /* SMAR */
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+#define BRCMF_RAMSIZE_OFFSET 0x6c
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+
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struct brcmf_pcie_console {
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u32 base_addr;
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@@ -1412,6 +1416,28 @@ static const struct brcmf_bus_ops brcmf_
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};
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+static void
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+brcmf_pcie_adjust_ramsize(struct brcmf_pciedev_info *devinfo, u8 *data,
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+ u32 data_len)
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+{
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+ __le32 *field;
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+ u32 newsize;
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+
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+ if (data_len < BRCMF_RAMSIZE_OFFSET + 8)
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+ return;
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+
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+ field = (__le32 *)&data[BRCMF_RAMSIZE_OFFSET];
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+ if (le32_to_cpup(field) != BRCMF_RAMSIZE_MAGIC)
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+ return;
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+ field++;
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+ newsize = le32_to_cpup(field);
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+
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+ brcmf_dbg(PCIE, "Found ramsize info in FW, adjusting to 0x%x\n",
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+ newsize);
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+ devinfo->ci->ramsize = newsize;
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+}
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+
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+
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static int
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brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo,
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u32 sharedram_addr)
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@@ -1694,6 +1720,13 @@ static void brcmf_pcie_setup(struct devi
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brcmf_pcie_attach(devinfo);
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+ /* Some of the firmwares have the size of the memory of the device
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+ * defined inside the firmware. This is because part of the memory in
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+ * the device is shared and the devision is determined by FW. Parse
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+ * the firmware and adjust the chip memory size now.
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+ */
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+ brcmf_pcie_adjust_ramsize(devinfo, (u8 *)fw->data, fw->size);
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+
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ret = brcmf_pcie_download_fw_nvram(devinfo, fw, nvram, nvram_len);
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if (ret)
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goto fail;
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