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[src/trunk]: src/sys/dev/pci Move PCIe initiaization code from alc_attach() t...
details: https://anonhg.NetBSD.org/src/rev/2d755f3280fb
branches: trunk
changeset: 460270:2d755f3280fb
user: msaitoh <msaitoh%NetBSD.org@localhost>
date: Tue Oct 15 15:59:26 2019 +0000
description:
Move PCIe initiaization code from alc_attach() to alc_init_pcie().
No functional change.
diffstat:
sys/dev/pci/if_alc.c | 153 +++++++++++++++++++++++++++------------------------
1 files changed, 81 insertions(+), 72 deletions(-)
diffs (189 lines):
diff -r 4e7554191253 -r 2d755f3280fb sys/dev/pci/if_alc.c
--- a/sys/dev/pci/if_alc.c Tue Oct 15 15:58:46 2019 +0000
+++ b/sys/dev/pci/if_alc.c Tue Oct 15 15:59:26 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_alc.c,v 1.39 2019/10/15 15:56:26 msaitoh Exp $ */
+/* $NetBSD: if_alc.c,v 1.40 2019/10/15 15:59:26 msaitoh Exp $ */
/* $OpenBSD: if_alc.c,v 1.1 2009/08/08 09:31:13 kevlo Exp $ */
/*-
* Copyright (c) 2009, Pyun YongHyeon <yongari%FreeBSD.org@localhost>
@@ -166,6 +166,7 @@
static void alc_stop_queue(struct alc_softc *);
static void alc_tick(void *);
static void alc_txeof(struct alc_softc *);
+static void alc_init_pcie(struct alc_softc *);
uint32_t alc_dma_burst[] = { 128, 256, 512, 1024, 2048, 4096, 0 };
@@ -1172,6 +1173,83 @@
}
static void
+alc_init_pcie(struct alc_softc *sc)
+{
+ const char *aspm_state[] = { "L0s/L1", "L0s", "L1", "L0s/L1" };
+ uint32_t cap, ctl, val;
+ int state;
+
+ /* Clear data link and flow-control protocol error. */
+ val = CSR_READ_4(sc, ALC_PEX_UNC_ERR_SEV);
+ val &= ~(PEX_UNC_ERR_SEV_DLP | PEX_UNC_ERR_SEV_FCP);
+ CSR_WRITE_4(sc, ALC_PEX_UNC_ERR_SEV, val);
+
+ if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+ CSR_WRITE_4(sc, ALC_LTSSM_ID_CFG,
+ CSR_READ_4(sc, ALC_LTSSM_ID_CFG) & ~LTSSM_ID_WRO_ENB);
+ CSR_WRITE_4(sc, ALC_PCIE_PHYMISC,
+ CSR_READ_4(sc, ALC_PCIE_PHYMISC) |
+ PCIE_PHYMISC_FORCE_RCV_DET);
+ if (sc->alc_ident->deviceid == PCI_PRODUCT_ATTANSIC_AR8152_B &&
+ sc->alc_rev == ATHEROS_AR8152_B_V10) {
+ val = CSR_READ_4(sc, ALC_PCIE_PHYMISC2);
+ val &= ~(PCIE_PHYMISC2_SERDES_CDR_MASK |
+ PCIE_PHYMISC2_SERDES_TH_MASK);
+ val |= 3 << PCIE_PHYMISC2_SERDES_CDR_SHIFT;
+ val |= 3 << PCIE_PHYMISC2_SERDES_TH_SHIFT;
+ CSR_WRITE_4(sc, ALC_PCIE_PHYMISC2, val);
+ }
+ /* Disable ASPM L0S and L1. */
+ cap = pci_conf_read(sc->sc_pct, sc->sc_pcitag,
+ sc->alc_expcap + PCIE_LCAP) >> 16;
+ if ((cap & PCIE_LCAP_ASPM) != 0) {
+ ctl = pci_conf_read(sc->sc_pct, sc->sc_pcitag,
+ sc->alc_expcap + PCIE_LCSR) >> 16;
+ if ((ctl & 0x08) != 0)
+ sc->alc_rcb = DMA_CFG_RCB_128;
+ if (alcdebug)
+ printf("%s: RCB %u bytes\n",
+ device_xname(sc->sc_dev),
+ sc->alc_rcb == DMA_CFG_RCB_64 ? 64 : 128);
+ state = ctl & 0x03;
+ if (state & 0x01)
+ sc->alc_flags |= ALC_FLAG_L0S;
+ if (state & 0x02)
+ sc->alc_flags |= ALC_FLAG_L1S;
+ if (alcdebug)
+ printf("%s: ASPM %s %s\n",
+ device_xname(sc->sc_dev),
+ aspm_state[state],
+ state == 0 ? "disabled" : "enabled");
+ alc_disable_l0s_l1(sc);
+ } else {
+ aprint_debug_dev(sc->sc_dev, "no ASPM support\n");
+ }
+ } else {
+ val = CSR_READ_4(sc, ALC_PDLL_TRNS1);
+ val &= ~PDLL_TRNS1_D3PLLOFF_ENB;
+ CSR_WRITE_4(sc, ALC_PDLL_TRNS1, val);
+ val = CSR_READ_4(sc, ALC_MASTER_CFG);
+ if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
+ (sc->alc_rev & 0x01) != 0) {
+ if ((val & MASTER_WAKEN_25M) == 0 ||
+ (val & MASTER_CLK_SEL_DIS) == 0) {
+ val |= MASTER_WAKEN_25M | MASTER_CLK_SEL_DIS;
+ CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
+ }
+ } else {
+ if ((val & MASTER_WAKEN_25M) == 0 ||
+ (val & MASTER_CLK_SEL_DIS) != 0) {
+ val |= MASTER_WAKEN_25M;
+ val &= ~MASTER_CLK_SEL_DIS;
+ CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
+ }
+ }
+ }
+ alc_aspm(sc, 1, IFM_UNKNOWN);
+}
+
+static void
alc_attach(device_t parent, device_t self, void *aux)
{
@@ -1183,10 +1261,8 @@
struct ifnet *ifp;
struct mii_data * const mii = &sc->sc_miibus;
pcireg_t memtype;
- const char *aspm_state[] = { "L0s/L1", "L0s", "L1", "L0s/L1" };
uint16_t burst;
- int base, mii_flags, state, error = 0;
- uint32_t cap, ctl, val;
+ int base, mii_flags, error = 0;
char intrbuf[PCI_INTRSTR_LEN];
sc->alc_ident = alc_find_ident(pa);
@@ -1268,74 +1344,7 @@
if (alc_dma_burst[sc->alc_dma_wr_burst] > 1024)
sc->alc_dma_wr_burst = 3;
- /* Clear data link and flow-control protocol error. */
- val = CSR_READ_4(sc, ALC_PEX_UNC_ERR_SEV);
- val &= ~(PEX_UNC_ERR_SEV_DLP | PEX_UNC_ERR_SEV_FCP);
- CSR_WRITE_4(sc, ALC_PEX_UNC_ERR_SEV, val);
-
- if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
- CSR_WRITE_4(sc, ALC_LTSSM_ID_CFG,
- CSR_READ_4(sc, ALC_LTSSM_ID_CFG) & ~LTSSM_ID_WRO_ENB);
- CSR_WRITE_4(sc, ALC_PCIE_PHYMISC,
- CSR_READ_4(sc, ALC_PCIE_PHYMISC) |
- PCIE_PHYMISC_FORCE_RCV_DET);
- if (sc->alc_ident->deviceid == PCI_PRODUCT_ATTANSIC_AR8152_B &&
- sc->alc_rev == ATHEROS_AR8152_B_V10) {
- val = CSR_READ_4(sc, ALC_PCIE_PHYMISC2);
- val &= ~(PCIE_PHYMISC2_SERDES_CDR_MASK |
- PCIE_PHYMISC2_SERDES_TH_MASK);
- val |= 3 << PCIE_PHYMISC2_SERDES_CDR_SHIFT;
- val |= 3 << PCIE_PHYMISC2_SERDES_TH_SHIFT;
- CSR_WRITE_4(sc, ALC_PCIE_PHYMISC2, val);
- }
- /* Disable ASPM L0S and L1. */
- cap = pci_conf_read(sc->sc_pct, sc->sc_pcitag,
- base + PCIE_LCAP) >> 16;
- if ((cap & PCIE_LCAP_ASPM) != 0) {
- ctl = pci_conf_read(sc->sc_pct, sc->sc_pcitag,
- base + PCIE_LCSR) >> 16;
- if ((ctl & 0x08) != 0)
- sc->alc_rcb = DMA_CFG_RCB_128;
- if (alcdebug)
- printf("%s: RCB %u bytes\n",
- device_xname(sc->sc_dev),
- sc->alc_rcb == DMA_CFG_RCB_64 ? 64 : 128);
- state = ctl & 0x03;
- if (state & 0x01)
- sc->alc_flags |= ALC_FLAG_L0S;
- if (state & 0x02)
- sc->alc_flags |= ALC_FLAG_L1S;
- if (alcdebug)
- printf("%s: ASPM %s %s\n",
- device_xname(sc->sc_dev),
- aspm_state[state],
- state == 0 ? "disabled" : "enabled");
- alc_disable_l0s_l1(sc);
- } else {
- aprint_debug_dev(sc->sc_dev, "no ASPM support\n");
- }
- } else {
- val = CSR_READ_4(sc, ALC_PDLL_TRNS1);
- val &= ~PDLL_TRNS1_D3PLLOFF_ENB;
- CSR_WRITE_4(sc, ALC_PDLL_TRNS1, val);
- val = CSR_READ_4(sc, ALC_MASTER_CFG);
- if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
- (sc->alc_rev & 0x01) != 0) {
- if ((val & MASTER_WAKEN_25M) == 0 ||
- (val & MASTER_CLK_SEL_DIS) == 0) {
- val |= MASTER_WAKEN_25M | MASTER_CLK_SEL_DIS;
- CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
- }
- } else {
- if ((val & MASTER_WAKEN_25M) == 0 ||
- (val & MASTER_CLK_SEL_DIS) != 0) {
- val |= MASTER_WAKEN_25M;
- val &= ~MASTER_CLK_SEL_DIS;
- CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
- }
- }
- }
- alc_aspm(sc, 1, IFM_UNKNOWN);
+ alc_init_pcie(sc);
}
/* Reset PHY. */
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