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| author | Swapnil Jakhade <sjakhade@cadence.com> | 2021-12-23 07:01:29 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-12-27 16:35:09 +0530 |
| commit | fa10517211f72f9480677796b97cbe5a8f3a298f (patch) | |
| tree | db89745fbb7a5229ff7920841527120f7dacbc56 /drivers/phy | |
| parent | 8c95e1722689f1b1e63a6206acba2b6200ed7864 (diff) | |
| download | linux-rpi-fa10517211f72f9480677796b97cbe5a8f3a298f.tar.gz linux-rpi-fa10517211f72f9480677796b97cbe5a8f3a298f.tar.bz2 linux-rpi-fa10517211f72f9480677796b97cbe5a8f3a298f.zip | |
phy: cadence: Sierra: Add PHY PCS common register configurations
Add PHY PCS common register configuration sequences for single link.
Update single link PCIe register sequence accordingly.
Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Link: https://lore.kernel.org/r/20211223060137.9252-8-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/cadence/phy-cadence-sierra.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c index 9f2b8aefee9c..0bfd13843f2e 100644 --- a/drivers/phy/cadence/phy-cadence-sierra.c +++ b/drivers/phy/cadence/phy-cadence-sierra.c @@ -148,6 +148,7 @@ /* PHY PCS common registers */ #define SIERRA_PHY_PCS_COMMON_OFFSET(block_offset) \ (0xc000 << (block_offset)) +#define SIERRA_PHY_PIPE_CMN_CTRL1 0x0 #define SIERRA_PHY_PLL_CFG 0xe #define SIERRA_MACRO_ID 0x00007364 @@ -256,6 +257,8 @@ struct cdns_sierra_data { u32 id_value; u8 block_offset_shift; u8 reg_offset_shift; + struct cdns_sierra_vals *pcs_cmn_vals[NUM_PHY_TYPE][NUM_PHY_TYPE] + [NUM_SSC_MODE]; struct cdns_sierra_vals *pma_cmn_vals[NUM_PHY_TYPE][NUM_PHY_TYPE] [NUM_SSC_MODE]; struct cdns_sierra_vals *pma_ln_vals[NUM_PHY_TYPE][NUM_PHY_TYPE] @@ -364,6 +367,7 @@ static int cdns_sierra_phy_init(struct phy *gphy) enum cdns_sierra_phy_type phy_type = ins->phy_type; enum cdns_sierra_ssc_mode ssc = ins->ssc_mode; const struct cdns_reg_pairs *reg_pairs; + struct cdns_sierra_vals *pcs_cmn_vals; struct regmap *regmap; u32 num_regs; int i, j; @@ -375,6 +379,16 @@ static int cdns_sierra_phy_init(struct phy *gphy) clk_set_rate(phy->input_clks[CMN_REFCLK_DIG_DIV], 25000000); clk_set_rate(phy->input_clks[CMN_REFCLK1_DIG_DIV], 25000000); + /* PHY PCS common registers configurations */ + pcs_cmn_vals = init_data->pcs_cmn_vals[phy_type][TYPE_NONE][ssc]; + if (pcs_cmn_vals) { + reg_pairs = pcs_cmn_vals->reg_pairs; + num_regs = pcs_cmn_vals->num_regs; + regmap = phy->regmap_phy_pcs_common_cdb; + for (i = 0; i < num_regs; i++) + regmap_write(regmap, reg_pairs[i].off, reg_pairs[i].val); + } + /* PMA common registers configurations */ pma_cmn_vals = init_data->pma_cmn_vals[phy_type][TYPE_NONE][ssc]; if (pma_cmn_vals) { @@ -1022,6 +1036,16 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev) return 0; } +/* PCIE PHY PCS common configuration */ +static struct cdns_reg_pairs pcie_phy_pcs_cmn_regs[] = { + {0x0430, SIERRA_PHY_PIPE_CMN_CTRL1} +}; + +static struct cdns_sierra_vals pcie_phy_pcs_cmn_vals = { + .reg_pairs = pcie_phy_pcs_cmn_regs, + .num_regs = ARRAY_SIZE(pcie_phy_pcs_cmn_regs), +}; + /* refclk100MHz_32b_PCIe_cmn_pll_ext_ssc */ static const struct cdns_reg_pairs cdns_pcie_cmn_regs_ext_ssc[] = { {0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG}, @@ -1173,6 +1197,13 @@ static const struct cdns_sierra_data cdns_map_sierra = { .id_value = SIERRA_MACRO_ID, .block_offset_shift = 0x2, .reg_offset_shift = 0x2, + .pcs_cmn_vals = { + [TYPE_PCIE] = { + [TYPE_NONE] = { + [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals, + }, + }, + }, .pma_cmn_vals = { [TYPE_PCIE] = { [TYPE_NONE] = { @@ -1203,6 +1234,13 @@ static const struct cdns_sierra_data cdns_ti_map_sierra = { .id_value = SIERRA_MACRO_ID, .block_offset_shift = 0x0, .reg_offset_shift = 0x1, + .pcs_cmn_vals = { + [TYPE_PCIE] = { + [TYPE_NONE] = { + [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals, + }, + }, + }, .pma_cmn_vals = { [TYPE_PCIE] = { [TYPE_NONE] = { |