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PCI: artpec6: Configure FTS with dwc helper function

Use DesignWare helper functions to configure Fast Training Sequence. Drop the respective code in the driver.

Dilip Kota committed 6 years ago

Commit 6fd622c1 parent ed22aaa1 file · +1 −7Browse files

Unified · Split

drivers/pci/controller/dwc/pcie-artpec6.c+1−7
@@ -51,9 +51,6 @@ static const struct of_device_id artpec6_pcie_of_match[]; · 50 unmodified lines
5151 #define ACK_N_FTS_MASK GENMASK(15, 8)
5252 #define ACK_N_FTS(x) (((x) << 8) & ACK_N_FTS_MASK)
5353
54−#define FAST_TRAINING_SEQ_MASK GENMASK(7, 0)
55−#define FAST_TRAINING_SEQ(x) (((x) << 0) & FAST_TRAINING_SEQ_MASK)
56−
5754 /* ARTPEC-6 specific registers */
5855 #define PCIECFG 0x18
5956 #define PCIECFG_DBG_OEN BIT(24)
@@ -313,10 +310,7 @@ static void artpec6_pcie_set_nfts(struct artpec6_pcie *artpec6_pcie) · 253 unmodified lines
313310 * Set the Number of Fast Training Sequences that the core
314311 * advertises as its N_FTS during Gen2 or Gen3 link training.
315312 */
316− val = dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL);
317− val &= ~FAST_TRAINING_SEQ_MASK;
318− val |= FAST_TRAINING_SEQ(180);
319− dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, val);
313+ dw_pcie_link_set_n_fts(pci, 180);
320314 }
321315
322316 static void artpec6_pcie_assert_core_reset(struct artpec6_pcie *artpec6_pcie)