ppc4xx: Make 440SPe PCIe code more generic to use on different 4xx PPCs (3)
(3) This patch introduces macros like SDRN_PESDR_DLPSET(port) to access
the SDR registers of the PCIe ports. This makes the overall design
clearer, since it removed a lot of switch statements which are not
needed anymore.
Also, the functions ppc4xx_init_pcie_rootport() and
ppc4xx_init_pcie_entport() are merged into a single function
ppc4xx_init_pcie_port(), since most of the code was duplicated.
This makes maintainance and porting to other 4xx platforms
easier.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/cpu/ppc4xx/4xx_pcie.c b/cpu/ppc4xx/4xx_pcie.c
index c7b2141..2bc9638 100644
--- a/cpu/ppc4xx/4xx_pcie.c
+++ b/cpu/ppc4xx/4xx_pcie.c
@@ -368,11 +368,167 @@
}
/*
- * Yucca board as End point and root point setup
+ * Board-specific pcie initialization
+ * Platform code can reimplement ppc4xx_init_pcie_port_hw() if needed
+ */
+
+/*
+ * Initialize various parts of the PCI Express core for our port:
+ *
+ * - Set as a root 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 440SPE 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.
+ */
+#if defined(CONFIG_440SPE)
+int __ppc4xx_init_pcie_port_hw(int port, int rootport)
+{
+ u32 val = 1 << 24;
+ u32 utlset1;
+
+ if (rootport) {
+ val = PTYPE_ROOT_PORT << 20;
+ utlset1 = 0x21222222;
+ } else {
+ val = PTYPE_LEGACY_ENDPOINT << 20;
+ utlset1 = 0x20222222;
+ }
+
+ if (port == 0)
+ val |= LNKW_X8 << 12;
+ else
+ val |= LNKW_X4 << 12;
+
+ SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
+ SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1);
+ if (!ppc440spe_revB())
+ SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x11000000);
+ SDR_WRITE(SDRN_PESDR_HSSL0SET1(port), 0x35000000);
+ SDR_WRITE(SDRN_PESDR_HSSL1SET1(port), 0x35000000);
+ SDR_WRITE(SDRN_PESDR_HSSL2SET1(port), 0x35000000);
+ SDR_WRITE(SDRN_PESDR_HSSL3SET1(port), 0x35000000);
+ if (port == 0) {
+ SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
+ SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
+ }
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), (SDR_READ(SDRN_PESDR_RCSSET(port)) &
+ ~(1 << 24 | 1 << 16)) | 1 << 12);
+
+ return 0;
+}
+#endif /* CONFIG_440SPE */
+
+#if defined(CONFIG_405EX)
+int __ppc4xx_init_pcie_port_hw(int port, int rootport)
+{
+ u32 val;
+
+ if (rootport)
+ val = 0x00401000;
+ else
+ val = 0x00101000;
+
+ SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
+ SDR_WRITE(SDRN_PESDR_UTLSET1(port), 0x20222222);
+ SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01110000);
+ SDR_WRITE(SDRN_PESDR_PHYSET1(port), 0x720F0000);
+ SDR_WRITE(SDRN_PESDR_PHYSET2(port), 0x70600003);
+
+ /* Assert the PE0_PHY reset */
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01010000);
+ udelay(1000);
+
+ /* deassert the PE0_hotreset */
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01101000);
+
+ /* poll for phy !reset */
+ while (!(SDR_READ(SDRN_PESDR_PHYSTA(port)) & 0x00001000))
+ ;
+
+ /* deassert the PE0_gpl_utl_reset */
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x00101000);
+
+ if (port == 0)
+ mtdcr(DCRN_PEGPL_CFG(PCIE0), 0x10000000); /* guarded on */
+ else
+ mtdcr(DCRN_PEGPL_CFG(PCIE1), 0x10000000); /* guarded on */
+
+ return 0;
+}
+#endif /* CONFIG_405EX */
+
+int ppc4xx_init_pcie_port_hw(int port, int rootport)
+ __attribute__((weak, alias("__ppc4xx_init_pcie_port_hw")));
+
+/*
+ * 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
+ *
+ * For 405EX:
+ * PCIE0: 0xa000_0000
+ * PCIE1: 0xc000_0000
+ */
+static inline u64 ppc4xx_get_cfgaddr(int port)
+{
+#if defined(CONFIG_405EX)
+ if (port == 0)
+ return (u64)CFG_PCIE0_CFGBASE;
+ else
+ return (u64)CFG_PCIE1_CFGBASE;
+#endif
+#if defined(CONFIG_440SPE)
+ if (ppc440spe_revB()) {
+ switch (port) {
+ default: /* to satisfy compiler */
+ case 0:
+ return 0x0000000d00000000ULL;
+ case 1:
+ return 0x0000000d20000000ULL;
+ case 2:
+ return 0x0000000d40000000ULL;
+ }
+ } else {
+ switch (port) {
+ default: /* to satisfy compiler */
+ case 0:
+ return 0x0000000c40000000ULL;
+ case 1:
+ return 0x0000000c80000000ULL;
+ case 2:
+ return 0x0000000cc0000000ULL;
+ }
+ }
+#endif
+}
+
+/*
+ * 4xx boards 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
+ * 4xx boards can be plugged into another 4xx boards 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
@@ -386,26 +542,28 @@
* /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
+ * Enpoint cofiguration can be verified by connecting 4xx board to any
+ * host or another 4xx 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)
+ * How do I verify the inbound and out bound windows ? (4xx to 4xx)
* 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
+ * read the data from other 4xx 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 ppc4xx_init_pcie_rootport(int port)
+int ppc4xx_init_pcie_port(int port, int rootport)
{
static int core_init;
volatile u32 val = 0;
int attempts;
+ u64 addr;
+ u32 low, high;
if (!core_init) {
++core_init;
@@ -414,82 +572,17 @@
}
/*
- * Initialize various parts of the PCI Express core for our port:
- *
- * - Set as a root 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.
+ * Initialize various parts of the PCI Express core for our port
*/
- switch (port) {
- case 0:
- SDR_WRITE(PESDR0_DLPSET, 1 << 24 | PTYPE_ROOT_PORT << 20 | LNKW_X8 << 12);
-
- SDR_WRITE(PESDR0_UTLSET1, 0x21222222);
- 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;
+ ppc4xx_init_pcie_port_hw(port, rootport);
- case 1:
- SDR_WRITE(PESDR1_DLPSET, 1 << 24 | PTYPE_ROOT_PORT << 20 | LNKW_X4 << 12);
- SDR_WRITE(PESDR1_UTLSET1, 0x21222222);
- 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_ROOT_PORT << 20 | LNKW_X4 << 12);
- SDR_WRITE(PESDR2_UTLSET1, 0x21222222);
- 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;
- }
/*
* 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;
- }
-
+ val = SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port)));
if (val & (1 << 20)) {
printf("PCIE%d: PGRST failed %08x\n", port, val);
return -1;
@@ -498,18 +591,7 @@
/*
* 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;
- }
+ val = SDR_READ(SDRN_PESDR_LOOP(sdr_base(port)));
if (!(val & 0x00001000)) {
printf("PCIE%d: link is not up.\n", port);
return -1;
@@ -524,55 +606,25 @@
/*
* 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
*/
+ addr = ppc4xx_get_cfgaddr(port);
+ low = (u32)(addr & 0x00000000ffffffff);
+ high = (u32)(addr >> 32);
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_CFGBAH(PCIE0), high);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), low);
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_CFGBAH(PCIE1), high);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), low);
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_CFGBAH(PCIE2), high);
+ mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), low);
mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */
break;
}
@@ -581,256 +633,28 @@
* 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);
+ while(!(SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port))) & (1 << 16))) {
+ if (!(attempts--)) {
+ printf("PCIE%d: VC0 not active\n", port);
+ return -1;
}
-
- SDR_WRITE(PESDR2_RCSSET, SDR_READ(PESDR2_RCSSET) | 1 << 20);
- break;
+ mdelay(1000);
}
+ SDR_WRITE(SDRN_PESDR_RCSSET(sdr_base(port)),
+ SDR_READ(SDRN_PESDR_RCSSET(sdr_base(port))) | 1 << 20);
mdelay(100);
return 0;
}
-int ppc4xx_init_pcie_endport(int port)
+int ppc4xx_init_pcie_rootport(int port)
{
- static int core_init;
- volatile u32 val = 0;
- int attempts;
-
- if (!core_init) {
- ++core_init;
- if (ppc4xx_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;
- }
- /*
- * 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())
- ppc4xx_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 ppc4xx_init_pcie_port(port, 1);
+}
- return 0;
+int ppc4xx_init_pcie_endport(int port)
+{
+ return ppc4xx_init_pcie_port(port, 0);
}
void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port)
@@ -839,12 +663,12 @@
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);
+ 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:
@@ -884,26 +708,26 @@
case 0:
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE);
+ port * CFG_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(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_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);
+ ~(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_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);
+ ~(CFG_PCIE_MEMSIZE - 1) | 3);
break;
}
@@ -925,7 +749,6 @@
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);
/* Set Device and Vendor Id */
switch (port) {
@@ -949,6 +772,7 @@
/* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
out_le32(mbase + 0x208, 0x06040001);
+ printf("PCIE:%d successfully set as rootpoint\n", port);
}
int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port)
@@ -992,26 +816,26 @@
case 0:
mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE);
+ port * CFG_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(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_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);
+ ~(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_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);
+ ~(CFG_PCIE_MEMSIZE - 1) | 3);
break;
}
@@ -1026,40 +850,20 @@
/* 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);
+ 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);
+ while(!(SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port))) & (1 << 8))) {
+ if (!(attempts--)) {
+ printf("PCIE%d: BME not active\n", port);
+ return -1;
}
- break;
+ mdelay(1000);
}
+
printf("PCIE:%d successfully set as endpoint\n",port);
return 0;
diff --git a/include/asm-ppc/4xx_pcie.h b/include/asm-ppc/4xx_pcie.h
index 220c60c..1bb8fc7 100644
--- a/include/asm-ppc/4xx_pcie.h
+++ b/include/asm-ppc/4xx_pcie.h
@@ -12,14 +12,20 @@
#ifndef __4XX_PCIE_H
#define __4XX_PCIE_H
-#define mdelay(n) ({unsigned long __ms=(n); while (__ms--) udelay(1000);})
-
#define DCRN_SDR0_CFGADDR 0x00e
#define DCRN_SDR0_CFGDATA 0x00f
+#if defined(CONFIG_440SPE)
#define DCRN_PCIE0_BASE 0x100
#define DCRN_PCIE1_BASE 0x120
#define DCRN_PCIE2_BASE 0x140
+#endif
+
+#if defined(CONFIG_405EX)
+#define DCRN_PCIE0_BASE 0x040
+#define DCRN_PCIE1_BASE 0x060
+#endif
+
#define PCIE0 DCRN_PCIE0_BASE
#define PCIE1 DCRN_PCIE1_BASE
#define PCIE2 DCRN_PCIE2_BASE
@@ -47,6 +53,39 @@
#define PESDR0_PLLLCT2 0x03a1
#define PESDR0_PLLLCT3 0x03a2
+#if defined(CONFIG_440SPE)
+#define PCIE0_SDR 0x300
+#define PCIE1_SDR 0x340
+#define PCIE2_SDR 0x370
+#endif
+
+#if defined(CONFIG_405EX)
+#define PCIE0_SDR 0x400
+#define PCIE1_SDR 0x440
+#endif
+
+/* common regs, at least for 405EX and 440SPe */
+#define SDRN_PESDR_UTLSET1(n) (sdr_base(n) + 0x00)
+#define SDRN_PESDR_UTLSET2(n) (sdr_base(n) + 0x01)
+#define SDRN_PESDR_DLPSET(n) (sdr_base(n) + 0x02)
+#define SDRN_PESDR_LOOP(n) (sdr_base(n) + 0x03)
+#define SDRN_PESDR_RCSSET(n) (sdr_base(n) + 0x04)
+#define SDRN_PESDR_RCSSTS(n) (sdr_base(n) + 0x05)
+
+#if defined(CONFIG_440SPE)
+#define SDRN_PESDR_HSSL0SET1(n) (sdr_base(n) + 0x06)
+#define SDRN_PESDR_HSSL0SET2(n) (sdr_base(n) + 0x07)
+#define SDRN_PESDR_HSSL0STS(n) (sdr_base(n) + 0x08)
+#define SDRN_PESDR_HSSL1SET1(n) (sdr_base(n) + 0x09)
+#define SDRN_PESDR_HSSL1SET2(n) (sdr_base(n) + 0x0a)
+#define SDRN_PESDR_HSSL1STS(n) (sdr_base(n) + 0x0b)
+#define SDRN_PESDR_HSSL2SET1(n) (sdr_base(n) + 0x0c)
+#define SDRN_PESDR_HSSL2SET2(n) (sdr_base(n) + 0x0d)
+#define SDRN_PESDR_HSSL2STS(n) (sdr_base(n) + 0x0e)
+#define SDRN_PESDR_HSSL3SET1(n) (sdr_base(n) + 0x0f)
+#define SDRN_PESDR_HSSL3SET2(n) (sdr_base(n) + 0x10)
+#define SDRN_PESDR_HSSL3STS(n) (sdr_base(n) + 0x11)
+
#define PESDR0_UTLSET1 0x0300
#define PESDR0_UTLSET2 0x0301
#define PESDR0_DLPSET 0x0302
@@ -123,6 +162,40 @@
#define PESDR2_HSSCTLSET 0x0382
#define PESDR2_LANE_ABCD 0x0383
+#elif defined(CONFIG_405EX)
+
+#define SDRN_PESDR_PHYSET1(n) (sdr_base(n) + 0x06)
+#define SDRN_PESDR_PHYSET2(n) (sdr_base(n) + 0x07)
+#define SDRN_PESDR_BIST(n) (sdr_base(n) + 0x08)
+#define SDRN_PESDR_LPB(n) (sdr_base(n) + 0x0b)
+#define SDRN_PESDR_PHYSTA(n) (sdr_base(n) + 0x0c)
+
+#define PESDR0_UTLSET1 0x0400
+#define PESDR0_UTLSET2 0x0401
+#define PESDR0_DLPSET 0x0402
+#define PESDR0_LOOP 0x0403
+#define PESDR0_RCSSET 0x0404
+#define PESDR0_RCSSTS 0x0405
+#define PESDR0_PHYSET1 0x0406
+#define PESDR0_PHYSET2 0x0407
+#define PESDR0_BIST 0x0408
+#define PESDR0_LPB 0x040B
+#define PESDR0_PHYSTA 0x040C
+
+#define PESDR1_UTLSET1 0x0440
+#define PESDR1_UTLSET2 0x0441
+#define PESDR1_DLPSET 0x0442
+#define PESDR1_LOOP 0x0443
+#define PESDR1_RCSSET 0x0444
+#define PESDR1_RCSSTS 0x0445
+#define PESDR1_PHYSET1 0x0446
+#define PESDR1_PHYSET2 0x0447
+#define PESDR1_BIST 0x0448
+#define PESDR1_LPB 0x044B
+#define PESDR1_PHYSTA 0x044C
+
+#endif
+
/*
* UTL register offsets
*/
@@ -166,8 +239,32 @@
int ppc4xx_init_pcie(void);
int ppc4xx_init_pcie_rootport(int port);
+int ppc4xx_init_pcie_endport(int port);
void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port);
int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port);
int pcie_hose_scan(struct pci_controller *hose, int bus);
+static inline void mdelay(int n)
+{
+ u32 ms = n;
+
+ while (ms--)
+ udelay(1000);
+}
+
+static inline u32 sdr_base(int port)
+{
+ switch (port) {
+ default: /* to satisfy compiler */
+ case 0:
+ return PCIE0_SDR;
+ case 1:
+ return PCIE1_SDR;
+#if defined(PCIE2_SDR)
+ case 2:
+ return PCIE2_SDR;
+#endif
+ }
+}
+
#endif /* __4XX_PCIE_H */