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| author | Loic Poulain <loic.poulain@linaro.org> | 2021-04-07 10:41:00 +0200 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2021-04-07 11:07:23 +0200 |
| commit | 11134390d742bd22e574d03280fe0ec8d3d4974e (patch) | |
| tree | 672437af4f9fd267baf554c78e40789cc4a9ac9c /drivers/bus/mhi | |
| parent | bus: mhi: pci_generic: Implement PCI shutdown callback (diff) | |
| download | linux-11134390d742bd22e574d03280fe0ec8d3d4974e.tar.xz linux-11134390d742bd22e574d03280fe0ec8d3d4974e.zip | |
bus: mhi: pci_generic: Add FIREHOSE channels
When device enters flash programmer context (FP), it exposes firehose
protocol through the EDL dedicated channels.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1617784860-32439-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/bus/mhi')
| -rw-r--r-- | drivers/bus/mhi/pci_generic.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index f5992ec7eeb7..aa8f8d541371 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -145,6 +145,36 @@ struct mhi_pci_dev_info { .doorbell_mode_switch = false, \ } +#define MHI_CHANNEL_CONFIG_UL_FP(ch_num, ch_name, el_count, ev_ring) \ + { \ + .num = ch_num, \ + .name = ch_name, \ + .num_elements = el_count, \ + .event_ring = ev_ring, \ + .dir = DMA_TO_DEVICE, \ + .ee_mask = BIT(MHI_EE_FP), \ + .pollcfg = 0, \ + .doorbell = MHI_DB_BRST_DISABLE, \ + .lpm_notify = false, \ + .offload_channel = false, \ + .doorbell_mode_switch = false, \ + } \ + +#define MHI_CHANNEL_CONFIG_DL_FP(ch_num, ch_name, el_count, ev_ring) \ + { \ + .num = ch_num, \ + .name = ch_name, \ + .num_elements = el_count, \ + .event_ring = ev_ring, \ + .dir = DMA_FROM_DEVICE, \ + .ee_mask = BIT(MHI_EE_FP), \ + .pollcfg = 0, \ + .doorbell = MHI_DB_BRST_DISABLE, \ + .lpm_notify = false, \ + .offload_channel = false, \ + .doorbell_mode_switch = false, \ + } + #define MHI_EVENT_CONFIG_DATA(ev_ring, el_count) \ { \ .num_elements = el_count, \ @@ -181,6 +211,8 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = { MHI_CHANNEL_CONFIG_DL(15, "QMI", 4, 0), MHI_CHANNEL_CONFIG_UL(20, "IPCR", 8, 0), MHI_CHANNEL_CONFIG_DL(21, "IPCR", 8, 0), + MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0), + MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2), MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3), }; @@ -241,6 +273,9 @@ static const struct mhi_channel_config mhi_quectel_em1xx_channels[] = { MHI_CHANNEL_CONFIG_DL(13, "MBIM", 32, 0), MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0), MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0), + /* The EDL firmware is a flash-programmer exposing firehose protocol */ + MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0), + MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0_MBIM", 128, 2), MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3), }; |