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| author | Szuying Chen <Chloe_Chen@asmedia.com.tw> | 2022-09-04 14:18:00 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2022-09-07 09:06:51 +0300 |
| commit | a52958321bbb4e8b2b4ab5849b8cbb0202b1029d (patch) | |
| tree | 4afb99568e69caf9350389f535322bc089087a0a /drivers/thunderbolt | |
| parent | aef9c693e7e550954fc526b919342cc7d8047ed1 (diff) | |
| download | linux-a52958321bbb4e8b2b4ab5849b8cbb0202b1029d.tar.gz linux-a52958321bbb4e8b2b4ab5849b8cbb0202b1029d.tar.bz2 linux-a52958321bbb4e8b2b4ab5849b8cbb0202b1029d.zip | |
thunderbolt: Add support for ASMedia NVM image format
Add support for ASMedia specific NVM image format. This makes it
possible to upgrade the NVM firmware of ASMedia routers in addition to
Intel ones.
Signed-off-by: Szuying Chen <Chloe_Chen@asmedia.com.tw>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/nvm.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/thunderbolt/nvm.c b/drivers/thunderbolt/nvm.c index dc009f496963..3dd5f81bd629 100644 --- a/drivers/thunderbolt/nvm.c +++ b/drivers/thunderbolt/nvm.c @@ -18,6 +18,10 @@ #define INTEL_NVM_CSS 0x10 #define INTEL_NVM_FLASH_SIZE 0x45 +/* ASMedia specific NVM offsets */ +#define ASMEDIA_NVM_DATE 0x1c +#define ASMEDIA_NVM_VERSION 0x28 + static DEFINE_IDA(nvm_ida); /** @@ -149,8 +153,41 @@ static const struct tb_nvm_vendor_ops intel_switch_nvm_ops = { .write_headers = intel_switch_nvm_write_headers, }; +static int asmedia_switch_nvm_version(struct tb_nvm *nvm) +{ + struct tb_switch *sw = tb_to_switch(nvm->dev); + u32 val; + int ret; + + ret = tb_switch_nvm_read(sw, ASMEDIA_NVM_VERSION, &val, sizeof(val)); + if (ret) + return ret; + + nvm->major = (val << 16) & 0xff0000; + nvm->major |= val & 0x00ff00; + nvm->major |= (val >> 16) & 0x0000ff; + + ret = tb_switch_nvm_read(sw, ASMEDIA_NVM_DATE, &val, sizeof(val)); + if (ret) + return ret; + + nvm->minor = (val << 16) & 0xff0000; + nvm->minor |= val & 0x00ff00; + nvm->minor |= (val >> 16) & 0x0000ff; + + /* ASMedia NVM size is fixed to 512k */ + nvm->active_size = SZ_512K; + + return 0; +} + +static const struct tb_nvm_vendor_ops asmedia_switch_nvm_ops = { + .read_version = asmedia_switch_nvm_version, +}; + /* Router vendor NVM support table */ static const struct tb_nvm_vendor switch_nvm_vendors[] = { + { 0x174c, &asmedia_switch_nvm_ops }, { PCI_VENDOR_ID_INTEL, &intel_switch_nvm_ops }, { 0x8087, &intel_switch_nvm_ops }, }; |