nv-tegra-mirror/nvethernetrm
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/kernel/nvethernetrm.git synced 2025-12-25 11:04:28 +03:00
Code Issues Packages Projects Releases Wiki Activity

nvethernetrm: mgbe: add support for MAC loopback

Browse Source 
Enable/Disable MGBE loopback mode by set/clear
loopback mode (MGBE_MAC_RMCR_LM) in MAC receive
configuration.

Bug 200565892

Change-Id: Ibd23b264623d9a8b80b7fbe743167df94cd93baf
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2252672
This commit is contained in:
Bhadram Varka
2019-11-15 18:24:09 +05:30
parent 93cdd47a03
commit 6908759f50
1 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
osi/core/mgbe_core.c
View File

@@ -199,6 +199,43 @@ static nve32_t mgbe_flush_mtl_tx_queue(struct osi_core_priv_data *const osi_core
return 0;
}
/**
* @brief mgbe_config_mac_loopback - Configure MAC to support loopback
*
* @param[in] addr: Base address indicating the start of
* memory mapped IO region of the MAC.
* @param[in] lb_mode: Enable or Disable MAC loopback mode
*
* @note MAC should be init and started. see osi_start_mac()
*
* @retval 0 on success
* @retval -1 on failure.
*/
static int mgbe_config_mac_loopback(struct osi_core_priv_data *const osi_core,
unsigned int lb_mode)
{
unsigned int value;
void *addr = osi_core->base;
/* don't allow only if loopback mode is other than 0 or 1 */
if (lb_mode != OSI_ENABLE && lb_mode != OSI_DISABLE) {
return -1;
}
/* Read MAC Configuration Register */
value = osi_readl((unsigned char *)addr + MGBE_MAC_RMCR);
if (lb_mode == OSI_ENABLE) {
/* Enable Loopback Mode */
value |= MGBE_MAC_RMCR_LM;
} else {
value &= ~MGBE_MAC_RMCR_LM;
}
osi_writel(value, (unsigned char *)addr + MGBE_MAC_RMCR);
return 0;
}
/**
* @brief mgbe_configure_mtl_queue - Configure MTL Queue
*
@@ -925,7 +962,7 @@ void mgbe_init_core_ops(struct core_ops *ops)
ops->pad_calibrate = mgbe_pad_calibrate;
ops->set_mdc_clk_rate = OSI_NULL;
ops->flush_mtl_tx_queue = mgbe_flush_mtl_tx_queue;
ops->config_mac_loopback = OSI_NULL;
ops->config_mac_loopback = mgbe_config_mac_loopback;
ops->set_avb_algorithm = OSI_NULL;
ops->get_avb_algorithm = OSI_NULL;
ops->config_fw_err_pkts = OSI_NULL;
@@ -947,7 +984,6 @@ void mgbe_init_core_ops(struct core_ops *ops)
ops->set_systime_to_mac = OSI_NULL;
ops->config_addend = OSI_NULL;
ops->adjust_mactime = OSI_NULL,
//.get_systime_from_mac = OSI_NULL,
ops->config_tscr = OSI_NULL;
ops->config_ssir = OSI_NULL;
ops->read_mmc = OSI_NULL;