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-rw-r--r--cpu/ppc4xx/440spe_pcie.c416
-rw-r--r--cpu/ppc4xx/440spe_pcie.h11
2 files changed, 403 insertions, 24 deletions
diff --git a/cpu/ppc4xx/440spe_pcie.c b/cpu/ppc4xx/440spe_pcie.c
index b2621c2..6130cd2 100644
--- a/cpu/ppc4xx/440spe_pcie.c
+++ b/cpu/ppc4xx/440spe_pcie.c
@@ -270,7 +270,7 @@ int ppc440spe_init_pcie(void)
SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24));
udelay(3);
- while(time_out) {
+ while (time_out) {
if (!(SDR_READ(PESDR0_PLLLCT3) & 0x10000000)) {
time_out--;
udelay(1);
@@ -284,6 +284,40 @@ int ppc440spe_init_pcie(void)
return 0;
}
+/*
+ * Yucca board as End point and root point setup
+ * and
+ * testing inbound and out bound windows
+ *
+ * YUCCA board can be plugged into another yucca board or you can get PCI-E
+ * cable which can be used to setup loop back from one port to another port.
+ * Please rememeber that unless there is a endpoint plugged in to root port it
+ * will not initialize. It is the same in case of endpoint , unless there is
+ * root port attached it will not initialize.
+ *
+ * In this release of software all the PCI-E ports are configured as either
+ * endpoint or rootpoint.In future we will have support for selective ports
+ * setup as endpoint and root point in single board.
+ *
+ * Once your board came up as root point , you can verify by reading
+ * /proc/bus/pci/devices. Where you can see the configuration registers
+ * of end point device attached to the port.
+ *
+ * Enpoint cofiguration can be verified by connecting Yucca board to any
+ * host or another yucca board. Then try to scan the device. In case of
+ * linux use "lspci" or appripriate os command.
+ *
+ * How do I verify the inbound and out bound windows ?(yucca to yucca)
+ * in this configuration inbound and outbound windows are setup to access
+ * sram memroy area. SRAM is at 0x4 0000 0000 , on PLB bus. This address
+ * is mapped at 0x90000000. From u-boot prompt write data 0xb000 0000,
+ * This is waere your POM(PLB out bound memory window) mapped. then
+ * read the data from other yucca board's u-boot prompt at address
+ * 0x9000 0000(SRAM). Data should match.
+ * In case of inbound , write data to u-boot command prompt at 0xb000 0000
+ * which is mapped to 0x4 0000 0000. Now on rootpoint yucca u-boot prompt check
+ * data at 0x9000 0000(SRAM).Data should match.
+ */
int ppc440spe_init_pcie_rootport(int port)
{
static int core_init;
@@ -326,7 +360,7 @@ int ppc440spe_init_pcie_rootport(int port)
SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
SDR_WRITE(PESDR0_RCSSET,
- (SDR_READ(PESDR0_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ (SDR_READ(PESDR0_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
break;
case 1:
@@ -339,7 +373,7 @@ int ppc440spe_init_pcie_rootport(int port)
SDR_WRITE(PESDR1_HSSL2SET1, 0x35000000);
SDR_WRITE(PESDR1_HSSL3SET1, 0x35000000);
SDR_WRITE(PESDR1_RCSSET,
- (SDR_READ(PESDR1_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ (SDR_READ(PESDR1_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
break;
case 2:
@@ -352,6 +386,225 @@ int ppc440spe_init_pcie_rootport(int port)
SDR_WRITE(PESDR2_HSSL2SET1, 0x35000000);
SDR_WRITE(PESDR2_HSSL3SET1, 0x35000000);
SDR_WRITE(PESDR2_RCSSET,
+ (SDR_READ(PESDR2_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+ }
+ /*
+ * Notice: the following delay has critical impact on device
+ * initialization - if too short (<50ms) the link doesn't get up.
+ */
+ mdelay(100);
+
+ switch (port) {
+ case 0:
+ val = SDR_READ(PESDR0_RCSSTS);
+ break;
+ case 1:
+ val = SDR_READ(PESDR1_RCSSTS);
+ break;
+ case 2:
+ val = SDR_READ(PESDR2_RCSSTS);
+ break;
+ }
+
+ if (val & (1 << 20)) {
+ printf("PCIE%d: PGRST failed %08x\n", port, val);
+ return -1;
+ }
+
+ /*
+ * Verify link is up
+ */
+ val = 0;
+ switch (port) {
+ case 0:
+ val = SDR_READ(PESDR0_LOOP);
+ break;
+ case 1:
+ val = SDR_READ(PESDR1_LOOP);
+ break;
+ case 2:
+ val = SDR_READ(PESDR2_LOOP);
+ break;
+ }
+ if (!(val & 0x00001000)) {
+ printf("PCIE%d: link is not up.\n", port);
+ return -1;
+ }
+
+ /*
+ * Setup UTL registers - but only on revA!
+ * We use default settings for revB chip.
+ */
+ if (!ppc440spe_revB())
+ ppc440spe_setup_utl(port);
+
+ /*
+ * We map PCI Express configuration access into the 512MB regions
+ *
+ * NOTICE: revB is very strict about PLB real addressess and ranges to
+ * be mapped for config space; it seems to only work with d_nnnn_nnnn
+ * range (hangs the core upon config transaction attempts when set
+ * otherwise) while revA uses c_nnnn_nnnn.
+ *
+ * For revA:
+ * PCIE0: 0xc_4000_0000
+ * PCIE1: 0xc_8000_0000
+ * PCIE2: 0xc_c000_0000
+ *
+ * For revB:
+ * PCIE0: 0xd_0000_0000
+ * PCIE1: 0xd_2000_0000
+ * PCIE2: 0xd_4000_0000
+ */
+
+ switch (port) {
+ case 0:
+ if (ppc440spe_revB()) {
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), 0x0000000d);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), 0x00000000);
+ } else {
+ /* revA */
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), 0x40000000);
+ }
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE0), 0xe0000001); /* 512MB region, valid */
+ break;
+
+ case 1:
+ if (ppc440spe_revB()) {
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), 0x0000000d);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), 0x20000000);
+ } else {
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), 0x80000000);
+ }
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE1), 0xe0000001); /* 512MB region, valid */
+ break;
+
+ case 2:
+ if (ppc440spe_revB()) {
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), 0x0000000d);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), 0x40000000);
+ } else {
+ mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), 0x0000000c);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), 0xc0000000);
+ }
+ mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */
+ break;
+ }
+
+ /*
+ * Check for VC0 active and assert RDY.
+ */
+ attempts = 10;
+ switch (port) {
+ case 0:
+ while(!(SDR_READ(PESDR0_RCSSTS) & (1 << 16))) {
+ if (!(attempts--)) {
+ printf("PCIE0: VC0 not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+ SDR_WRITE(PESDR0_RCSSET, SDR_READ(PESDR0_RCSSET) | 1 << 20);
+ break;
+ case 1:
+ while(!(SDR_READ(PESDR1_RCSSTS) & (1 << 16))) {
+ if (!(attempts--)) {
+ printf("PCIE1: VC0 not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+
+ SDR_WRITE(PESDR1_RCSSET, SDR_READ(PESDR1_RCSSET) | 1 << 20);
+ break;
+ case 2:
+ while(!(SDR_READ(PESDR2_RCSSTS) & (1 << 16))) {
+ if (!(attempts--)) {
+ printf("PCIE2: VC0 not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+
+ SDR_WRITE(PESDR2_RCSSET, SDR_READ(PESDR2_RCSSET) | 1 << 20);
+ break;
+ }
+ mdelay(100);
+
+ return 0;
+}
+
+int ppc440spe_init_pcie_endport(int port)
+{
+ static int core_init;
+ volatile u32 val = 0;
+ int attempts;
+
+ if (!core_init) {
+ ++core_init;
+ if (ppc440spe_init_pcie())
+ return -1;
+ }
+
+ /*
+ * Initialize various parts of the PCI Express core for our port:
+ *
+ * - Set as a end port and enable max width
+ * (PXIE0 -> X8, PCIE1 and PCIE2 -> X4).
+ * - Set up UTL configuration.
+ * - Increase SERDES drive strength to levels suggested by AMCC.
+ * - De-assert RSTPYN, RSTDL and RSTGU.
+ *
+ * NOTICE for revB chip: PESDRn_UTLSET2 is not set - we leave it with
+ * default setting 0x11310000. The register has new fields,
+ * PESDRn_UTLSET2[LKINE] in particular: clearing it leads to PCIE core
+ * hang.
+ */
+ switch (port) {
+ case 0:
+ SDR_WRITE(PESDR0_DLPSET, 1 << 24 | PTYPE_LEGACY_ENDPOINT << 20 | LNKW_X8 << 12);
+
+ SDR_WRITE(PESDR0_UTLSET1, 0x20222222);
+ if (!ppc440spe_revB())
+ SDR_WRITE(PESDR0_UTLSET2, 0x11000000);
+ SDR_WRITE(PESDR0_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL3SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
+ SDR_WRITE(PESDR0_RCSSET,
+ (SDR_READ(PESDR0_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+
+ case 1:
+ SDR_WRITE(PESDR1_DLPSET, 1 << 24 | PTYPE_LEGACY_ENDPOINT << 20 | LNKW_X4 << 12);
+ SDR_WRITE(PESDR1_UTLSET1, 0x20222222);
+ if (!ppc440spe_revB())
+ SDR_WRITE(PESDR1_UTLSET2, 0x11000000);
+ SDR_WRITE(PESDR1_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR1_HSSL3SET1, 0x35000000);
+ SDR_WRITE(PESDR1_RCSSET,
+ (SDR_READ(PESDR1_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ break;
+
+ case 2:
+ SDR_WRITE(PESDR2_DLPSET, 1 << 24 | PTYPE_LEGACY_ENDPOINT << 20 | LNKW_X4 << 12);
+ SDR_WRITE(PESDR2_UTLSET1, 0x20222222);
+ if (!ppc440spe_revB())
+ SDR_WRITE(PESDR2_UTLSET2, 0x11000000);
+ SDR_WRITE(PESDR2_HSSL0SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL1SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL2SET1, 0x35000000);
+ SDR_WRITE(PESDR2_HSSL3SET1, 0x35000000);
+ SDR_WRITE(PESDR2_RCSSET,
(SDR_READ(PESDR2_RCSSET) & ~(1 << 24 | 1 << 16)) | 1 << 12);
break;
}
@@ -418,7 +671,6 @@ int ppc440spe_init_pcie_rootport(int port)
* PCIE1: 0xd_2000_0000
* PCIE2: 0xd_4000_0000
*/
-
switch (port) {
case 0:
if (ppc440spe_revB()) {
@@ -498,29 +750,33 @@ int ppc440spe_init_pcie_rootport(int port)
return 0;
}
-void ppc440spe_setup_pcie(struct pci_controller *hose, int port)
+void ppc440spe_setup_pcie_rootpoint(struct pci_controller *hose, int port)
{
volatile void *mbase = NULL;
+ volatile void *rmbase = NULL;
pci_set_ops(hose,
- pcie_read_config_byte,
- pcie_read_config_word,
- pcie_read_config_dword,
- pcie_write_config_byte,
- pcie_write_config_word,
- pcie_write_config_dword);
-
- switch(port) {
+ pcie_read_config_byte,
+ pcie_read_config_word,
+ pcie_read_config_dword,
+ pcie_write_config_byte,
+ pcie_write_config_word,
+ pcie_write_config_dword);
+
+ switch (port) {
case 0:
mbase = (u32 *)CFG_PCIE0_XCFGBASE;
+ rmbase = (u32 *)CFG_PCIE0_CFGBASE;
hose->cfg_data = (u8 *)CFG_PCIE0_CFGBASE;
break;
case 1:
mbase = (u32 *)CFG_PCIE1_XCFGBASE;
+ rmbase = (u32 *)CFG_PCIE1_CFGBASE;
hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
break;
case 2:
mbase = (u32 *)CFG_PCIE2_XCFGBASE;
+ rmbase = (u32 *)CFG_PCIE2_CFGBASE;
hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
break;
}
@@ -528,14 +784,9 @@ void ppc440spe_setup_pcie(struct pci_controller *hose, int port)
/*
* Set bus numbers on our root port
*/
- if (ppc440spe_revB()) {
- out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0);
- out_8((u8 *)mbase + PCI_SECONDARY_BUS, 1);
- out_8((u8 *)mbase + PCI_SUBORDINATE_BUS, 1);
- } else {
- out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0);
- out_8((u8 *)mbase + PCI_SECONDARY_BUS, 0);
- }
+ out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0);
+ out_8((u8 *)mbase + PCI_SECONDARY_BUS, 1);
+ out_8((u8 *)mbase + PCI_SUBORDINATE_BUS, 1);
/*
* Set up outbound translation to hose->mem_space from PLB
@@ -544,8 +795,7 @@ void ppc440spe_setup_pcie(struct pci_controller *hose, int port)
* subregions and to enable the outbound translation.
*/
out_le32(mbase + PECFG_POM0LAH, 0x00000000);
- out_le32(mbase + PECFG_POM0LAL, (CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE));
+ out_le32(mbase + PECFG_POM0LAL, 0x00000000);
switch (port) {
case 0:
@@ -579,14 +829,134 @@ void ppc440spe_setup_pcie(struct pci_controller *hose, int port)
out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
out_le32(mbase + PECFG_BAR0LMPA, 0);
+
+ out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
+ out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
out_le32(mbase + PECFG_PIM0LAL, 0);
out_le32(mbase + PECFG_PIM0LAH, 0);
+ out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
+ out_le32(mbase + PECFG_PIM1LAH, 0x00000004);
+ out_le32(mbase + PECFG_PIMEN, 0x1);
+
+ /* Enable I/O, Mem, and Busmaster cycles */
+ out_le16((u16 *)(mbase + PCI_COMMAND),
+ in_le16((u16 *)(mbase + PCI_COMMAND)) |
+ PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ printf("PCIE:%d successfully set as rootpoint\n",port);
+}
+
+int ppc440spe_setup_pcie_endpoint(struct pci_controller *hose, int port)
+{
+ volatile void *mbase = NULL;
+ int attempts = 0;
+
+ pci_set_ops(hose,
+ pcie_read_config_byte,
+ pcie_read_config_word,
+ pcie_read_config_dword,
+ pcie_write_config_byte,
+ pcie_write_config_word,
+ pcie_write_config_dword);
+
+ switch (port) {
+ case 0:
+ mbase = (u32 *)CFG_PCIE0_XCFGBASE;
+ hose->cfg_data = (u8 *)CFG_PCIE0_CFGBASE;
+ break;
+ case 1:
+ mbase = (u32 *)CFG_PCIE1_XCFGBASE;
+ hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
+ break;
+ case 2:
+ mbase = (u32 *)CFG_PCIE2_XCFGBASE;
+ hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
+ break;
+ }
+
+ /*
+ * Set up outbound translation to hose->mem_space from PLB
+ * addresses at an offset of 0xd_0000_0000. We set the low
+ * bits of the mask to 11 to turn off splitting into 8
+ * subregions and to enable the outbound translation.
+ */
+ out_le32(mbase + PECFG_POM0LAH, 0x00001ff8);
+ out_le32(mbase + PECFG_POM0LAL, 0x00001000);
+
+ switch (port) {
+ case 0:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CFG_PCIE_MEMBASE +
+ port * CFG_PCIE_MEMSIZE);
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
+ ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ break;
+ case 1:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), (CFG_PCIE_MEMBASE +
+ port * CFG_PCIE_MEMSIZE));
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
+ ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ break;
+ case 2:
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), (CFG_PCIE_MEMBASE +
+ port * CFG_PCIE_MEMSIZE));
+ mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
+ mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
+ ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ break;
+ }
+
+ /* Set up 16GB inbound memory window at 0 */
+ out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
+ out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
+ out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
+ out_le32(mbase + PECFG_BAR0LMPA, 0);
+ out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
+ out_le32(mbase + PECFG_PIM0LAH, 0x00000004); /* pointing to SRAM */
out_le32(mbase + PECFG_PIMEN, 0x1);
/* Enable I/O, Mem, and Busmaster cycles */
out_le16((u16 *)(mbase + PCI_COMMAND),
in_le16((u16 *)(mbase + PCI_COMMAND)) |
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ out_le16(mbase + 0x200,0xcaad); /* Setting vendor ID */
+ out_le16(mbase + 0x202,0xfeed); /* Setting device ID */
+ attempts = 10;
+ switch (port) {
+ case 0:
+ while (!(SDR_READ(PESDR0_RCSSTS) & (1 << 8))) {
+ if (!(attempts--)) {
+ printf("PCIE0: BMEN is not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+ break;
+ case 1:
+ while (!(SDR_READ(PESDR1_RCSSTS) & (1 << 8))) {
+ if (!(attempts--)) {
+ printf("PCIE1: BMEN is not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+ break;
+ case 2:
+ while (!(SDR_READ(PESDR2_RCSSTS) & (1 << 8))) {
+ if (!(attempts--)) {
+ printf("PCIE2: BMEN is not active\n");
+ return -1;
+ }
+ mdelay(1000);
+ }
+ break;
+ }
+ printf("PCIE:%d successfully set as endpoint\n",port);
+
+ return 0;
}
#endif /* CONFIG_PCI */
#endif /* CONFIG_440SPE */
diff --git a/cpu/ppc4xx/440spe_pcie.h b/cpu/ppc4xx/440spe_pcie.h
index 47df762..2becc77 100644
--- a/cpu/ppc4xx/440spe_pcie.h
+++ b/cpu/ppc4xx/440spe_pcie.h
@@ -139,9 +139,17 @@
*/
#define PECFG_BAR0LMPA 0x210
#define PECFG_BAR0HMPA 0x214
+#define PECFG_BAR1MPA 0x218
+#define PECFG_BAR2MPA 0x220
+
#define PECFG_PIMEN 0x33c
#define PECFG_PIM0LAL 0x340
#define PECFG_PIM0LAH 0x344
+#define PECFG_PIM1LAL 0x348
+#define PECFG_PIM1LAH 0x34c
+#define PECFG_PIM01SAL 0x350
+#define PECFG_PIM01SAH 0x354
+
#define PECFG_POM0LAL 0x380
#define PECFG_POM0LAH 0x384
@@ -156,7 +164,8 @@
int ppc440spe_init_pcie(void);
int ppc440spe_init_pcie_rootport(int port);
void yucca_setup_pcie_fpga_rootpoint(int port);
-void ppc440spe_setup_pcie(struct pci_controller *hose, int port);
+void ppc440spe_setup_pcie_rootpoint(struct pci_controller *hose, int port);
+int ppc440spe_setup_pcie_endpoint(struct pci_controller *hose, int port);
int yucca_pcie_card_present(int port);
int pcie_hose_scan(struct pci_controller *hose, int bus);
#endif /* __440SPE_PCIE_H */
generated by cgit v0.10.2 at 2024-11-03 15:55:14 (GMT)