/*
- * (C) Copyright 2006 - 2007
+ * (C) Copyright 2006 - 2008
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copyright (c) 2005 Cisco Systems. All rights reserved.
*
*/
-#include <asm/processor.h>
-#include <asm-ppc/io.h>
-#include <ppc4xx.h>
+/* define DEBUG for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG
+#endif
+
#include <common.h>
#include <pci.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+#include <asm-ppc/io.h>
-#if defined(CONFIG_440SPE) && defined(CONFIG_PCI)
+#if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
+ defined(CONFIG_PCI) && !defined(CONFIG_PCI_DISABLE_PCIE)
#include <asm/4xx_pcie.h>
LNKW_X8 = 0x8
};
+static int validate_endpoint(struct pci_controller *hose)
+{
+ if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE0_CFGBASE)
+ return (is_end_point(0));
+ else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE1_CFGBASE)
+ return (is_end_point(1));
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
+ else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE2_CFGBASE)
+ return (is_end_point(2));
+#endif
+
+ return 0;
+}
+
static u8* pcie_get_base(struct pci_controller *hose, unsigned int devfn)
{
u8 *base = (u8*)hose->cfg_data;
/* use local configuration space for the first bus */
if (PCI_BUS(devfn) == 0) {
- if (hose->cfg_data == (u8*)CFG_PCIE0_CFGBASE)
- base = (u8*)CFG_PCIE0_XCFGBASE;
- if (hose->cfg_data == (u8*)CFG_PCIE1_CFGBASE)
- base = (u8*)CFG_PCIE1_XCFGBASE;
- if (hose->cfg_data == (u8*)CFG_PCIE2_CFGBASE)
- base = (u8*)CFG_PCIE2_XCFGBASE;
+ if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE0_CFGBASE)
+ base = (u8*)CONFIG_SYS_PCIE0_XCFGBASE;
+ if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE1_CFGBASE)
+ base = (u8*)CONFIG_SYS_PCIE1_XCFGBASE;
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
+ if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE2_CFGBASE)
+ base = (u8*)CONFIG_SYS_PCIE2_XCFGBASE;
+#endif
}
return base;
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) | GPL_DMER_MASK_DISA);
mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE),
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) | GPL_DMER_MASK_DISA);
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE),
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) | GPL_DMER_MASK_DISA);
+#endif
}
static void pcie_dmer_enable(void)
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) & ~GPL_DMER_MASK_DISA);
mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE1_BASE),
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) & ~GPL_DMER_MASK_DISA);
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE2_BASE),
mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) & ~GPL_DMER_MASK_DISA);
+#endif
}
static int pcie_read_config(struct pci_controller *hose, unsigned int devfn,
u8 *address;
*val = 0;
+ if (validate_endpoint(hose))
+ return 0; /* No upstream config access */
+
/*
* Bus numbers are relative to hose->first_busno
*/
*/
pcie_dmer_disable ();
+ debug("%s: cfg_data=%08x offset=%08x\n", __func__, hose->cfg_data, offset);
switch (len) {
case 1:
*val = in_8(hose->cfg_data + offset);
u8 *address;
+ if (validate_endpoint(hose))
+ return 0; /* No upstream config access */
+
/*
* Bus numbers are relative to hose->first_busno
*/
return pcie_write_config(hose,(u32)dev,offset,3,(u32 )val);
}
+#if defined(CONFIG_440SPE)
static void ppc4xx_setup_utl(u32 port) {
volatile void *utl_base = NULL;
mtdcr(DCRN_PEGPL_SPECIAL(PCIE2), 0x68782800);
break;
}
- utl_base = (unsigned int *)(CFG_PCIE_BASE + 0x1000 * port);
+ utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port);
/*
* Set buffer allocations and then assert VRB and TXE.
int err = 0;
/* SDR0_PEGPLLLCT1 reset */
- if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000)) {
+ if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000))
printf("PCIE: SDR0_PEGPLLLCT1 reset error 0x%x\n", valPE0);
- }
valPE0 = SDR_READ(PESDR0_RCSSET);
valPE1 = SDR_READ(PESDR1_RCSSET);
/* Set PLL clock receiver to LVPECL */
SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) | 1 << 28);
- if (check_error())
+ if (check_error()) {
+ printf("ERROR: failed to set PCIe reference clock receiver --"
+ "PESDR0_PLLLCT1 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT1));
+
return -1;
+ }
+
+ /* Did resistance calibration work? */
+ if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000)) {
+ printf("ERROR: PCIe resistance calibration failed --"
+ "PESDR0_PLLLCT2 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT2));
- if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000))
- {
- printf("PCIE: PESDR_PLLCT2 resistance calibration failed (0x%08x)\n",
- SDR_READ(PESDR0_PLLLCT2));
return -1;
}
/* De-assert reset of PCIe PLL, wait for lock */
SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24));
- udelay(3);
+ udelay(300); /* 300 uS is maximum time lock should take */
while (time_out) {
if (!(SDR_READ(PESDR0_PLLLCT3) & 0x10000000)) {
time_out--;
- udelay(1);
+ udelay(20); /* Wait 20 uS more if needed */
} else
break;
}
if (!time_out) {
- printf("PCIE: VCO output not locked\n");
+ printf("ERROR: PCIe PLL VCO output not locked to ref clock --"
+ "PESDR0_PLLLCTS=0x%08x\n", SDR_READ(PESDR0_PLLLCT3));
+
return -1;
}
return 0;
}
+#endif
-/*
- * 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 ppc4xx_init_pcie_rootport(int port)
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+static void ppc4xx_setup_utl(u32 port)
{
- static int core_init;
- volatile u32 val = 0;
- int attempts;
-
- if (!core_init) {
- ++core_init;
- if (ppc4xx_init_pcie())
- return -1;
- }
+ volatile void *utl_base = NULL;
/*
- * 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.
+ * Map UTL registers at 0x0801_n000 (4K 0xfff mask) PEGPLn_REGMSK
*/
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);
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE0), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE));
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE0), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE));
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* BAM 11100000=4KB */
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0);
break;
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);
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE1), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE));
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE1), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE)
+ + 0x1000);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* BAM 11100000=4KB */
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0);
break;
}
+ utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port);
+
/*
- * Notice: the following delay has critical impact on device
- * initialization - if too short (<50ms) the link doesn't get up.
+ * Set buffer allocations and then assert VRB and TXE.
*/
- mdelay(100);
+ out_be32(utl_base + PEUTL_PBCTL, 0x0800000c); /* PLBME, CRRE */
+ out_be32(utl_base + PEUTL_OUTTR, 0x08000000);
+ out_be32(utl_base + PEUTL_INTR, 0x02000000);
+ out_be32(utl_base + PEUTL_OPDBSZ, 0x04000000); /* OPD = 512 Bytes */
+ out_be32(utl_base + PEUTL_PBBSZ, 0x00000000); /* Max 512 Bytes */
+ out_be32(utl_base + PEUTL_IPHBSZ, 0x02000000);
+ out_be32(utl_base + PEUTL_IPDBSZ, 0x04000000); /* IPD = 512 Bytes */
+ out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000);
+ out_be32(utl_base + PEUTL_PCTL, 0x80800066); /* VRB,TXE,timeout=default */
+}
- 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;
+/*
+ * TODO: double check PCI express SDR based on the latest user manual
+ * Some registers specified here no longer exist.. has to be
+ * updated based on the final EAS spec.
+ */
+static int check_error(void)
+{
+ u32 valPE0, valPE1;
+ int err = 0;
+
+ valPE0 = SDR_READ(SDRN_PESDR_RCSSET(0));
+ valPE1 = SDR_READ(SDRN_PESDR_RCSSET(1));
+
+ /* SDR0_PExRCSSET rstgu */
+ if (!(valPE0 & PESDRx_RCSSET_RSTGU) || !(valPE1 & PESDRx_RCSSET_RSTGU)) {
+ printf("PCIE: SDR0_PExRCSSET rstgu error\n");
+ err = -1;
}
- if (val & (1 << 20)) {
- printf("PCIE%d: PGRST failed %08x\n", port, val);
- return -1;
+ /* SDR0_PExRCSSET rstdl */
+ if (!(valPE0 & PESDRx_RCSSET_RSTDL) || !(valPE1 & PESDRx_RCSSET_RSTDL)) {
+ printf("PCIE: SDR0_PExRCSSET rstdl error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET rstpyn */
+ if ((valPE0 & PESDRx_RCSSET_RSTPYN) || (valPE1 & PESDRx_RCSSET_RSTPYN)) {
+ printf("PCIE: SDR0_PExRCSSET rstpyn error\n");
+ err = -1;
}
+ /* SDR0_PExRCSSET hldplb */
+ if ((valPE0 & PESDRx_RCSSET_HLDPLB) || (valPE1 & PESDRx_RCSSET_HLDPLB)) {
+ printf("PCIE: SDR0_PExRCSSET hldplb error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET rdy */
+ if ((valPE0 & PESDRx_RCSSET_RDY) || (valPE1 & PESDRx_RCSSET_RDY)) {
+ printf("PCIE: SDR0_PExRCSSET rdy error\n");
+ err = -1;
+ }
+
+ return err;
+}
+
+/*
+ * Initialize PCI Express core as described in User Manual
+ * TODO: double check PE SDR PLL Register with the updated user manual.
+ */
+int ppc4xx_init_pcie(void)
+{
+ if (check_error())
+ return -1;
+
+ return 0;
+}
+#endif /* CONFIG_460EX */
+
+#if defined(CONFIG_405EX)
+static void ppc4xx_setup_utl(u32 port)
+{
+ u32 utl_base;
+
/*
- * Verify link is up
+ * Map UTL registers at 0xef4f_n000 (4K 0xfff mask) PEGPLn_REGMSK
*/
- val = 0;
switch (port) {
case 0:
- val = SDR_READ(PESDR0_LOOP);
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x00000000);
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE0), CONFIG_SYS_PCIE0_UTLBASE);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* 4k region, valid */
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0);
break;
+
case 1:
- val = SDR_READ(PESDR1_LOOP);
- break;
- case 2:
- val = SDR_READ(PESDR2_LOOP);
+ mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x00000000);
+ mtdcr(DCRN_PEGPL_REGBAL(PCIE1), CONFIG_SYS_PCIE1_UTLBASE);
+ mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* 4k region, valid */
+ mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0);
+
break;
}
- if (!(val & 0x00001000)) {
- printf("PCIE%d: link is not up.\n", port);
- return -1;
- }
+ utl_base = (port==0) ? CONFIG_SYS_PCIE0_UTLBASE : CONFIG_SYS_PCIE1_UTLBASE;
/*
- * Setup UTL registers - but only on revA!
- * We use default settings for revB chip.
+ * Set buffer allocations and then assert VRB and TXE.
*/
- if (!ppc440spe_revB())
- ppc4xx_setup_utl(port);
+ out_be32((u32 *)(utl_base + PEUTL_OUTTR), 0x02000000);
+ out_be32((u32 *)(utl_base + PEUTL_INTR), 0x02000000);
+ out_be32((u32 *)(utl_base + PEUTL_OPDBSZ), 0x04000000);
+ out_be32((u32 *)(utl_base + PEUTL_PBBSZ), 0x21000000);
+ out_be32((u32 *)(utl_base + PEUTL_IPHBSZ), 0x02000000);
+ out_be32((u32 *)(utl_base + PEUTL_IPDBSZ), 0x04000000);
+ out_be32((u32 *)(utl_base + PEUTL_RCIRQEN), 0x00f00000);
+ out_be32((u32 *)(utl_base + PEUTL_PCTL), 0x80800066);
+
+ out_be32((u32 *)(utl_base + PEUTL_PBCTL), 0x0800000c);
+ out_be32((u32 *)(utl_base + PEUTL_RCSTA),
+ in_be32((u32 *)(utl_base + PEUTL_RCSTA)) | 0x000040000);
+}
+int ppc4xx_init_pcie(void)
+{
/*
- * 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
+ * Nothing to do on 405EX
*/
+ return 0;
+}
+#endif /* CONFIG_405EX */
+
+/*
+ * 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_460EX) || defined(CONFIG_460GT)
+int __ppc4xx_init_pcie_port_hw(int port, int rootport)
+{
+ u32 val;
+ u32 utlset1;
+
+ if (rootport)
+ val = PTYPE_ROOT_PORT << 20;
+ else
+ val = PTYPE_LEGACY_ENDPOINT << 20;
+
+ if (port == 0) {
+ val |= LNKW_X1 << 12;
+ utlset1 = 0x20000000;
+ } else {
+ val |= LNKW_X4 << 12;
+ utlset1 = 0x20101101;
+ }
+
+ SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
+ SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1);
+ SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01210000);
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;
+ SDR_WRITE(PESDR0_L0CDRCTL, 0x00003230);
+ SDR_WRITE(PESDR0_L0DRV, 0x00000130);
+ SDR_WRITE(PESDR0_L0CLK, 0x00000006);
- 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 */
+ SDR_WRITE(PESDR0_PHY_CTL_RST,0x10000000);
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 */
+ case 1:
+ SDR_WRITE(PESDR1_L0CDRCTL, 0x00003230);
+ SDR_WRITE(PESDR1_L1CDRCTL, 0x00003230);
+ SDR_WRITE(PESDR1_L2CDRCTL, 0x00003230);
+ SDR_WRITE(PESDR1_L3CDRCTL, 0x00003230);
+ SDR_WRITE(PESDR1_L0DRV, 0x00000130);
+ SDR_WRITE(PESDR1_L1DRV, 0x00000130);
+ SDR_WRITE(PESDR1_L2DRV, 0x00000130);
+ SDR_WRITE(PESDR1_L3DRV, 0x00000130);
+ SDR_WRITE(PESDR1_L0CLK, 0x00000006);
+ SDR_WRITE(PESDR1_L1CLK, 0x00000006);
+ SDR_WRITE(PESDR1_L2CLK, 0x00000006);
+ SDR_WRITE(PESDR1_L3CLK, 0x00000006);
+
+ SDR_WRITE(PESDR1_PHY_CTL_RST,0x10000000);
break;
}
- /*
- * Check for VC0 active and assert RDY.
- */
- attempts = 10;
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), SDR_READ(SDRN_PESDR_RCSSET(port)) |
+ (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
+
+ /* Poll for PHY reset */
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);
+ while (!(SDR_READ(PESDR0_RSTSTA) & 0x1))
+ udelay(10);
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);
+ while (!(SDR_READ(PESDR1_RSTSTA) & 0x1))
+ udelay(10);
break;
}
- mdelay(100);
+
+ SDR_WRITE(SDRN_PESDR_RCSSET(port),
+ (SDR_READ(SDRN_PESDR_RCSSET(port)) &
+ ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
+ PESDRx_RCSSET_RSTPYN);
return 0;
}
+#endif /* CONFIG_440SPE */
-int ppc4xx_init_pcie_endport(int port)
+#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), 0x00000000);
+ SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01010000);
+ 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 */
+ if (is_end_point(port))
+ SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01111000);
+ else
+ 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 440SPe revA:
+ * PCIE0: 0xc_4000_0000
+ * PCIE1: 0xc_8000_0000
+ * PCIE2: 0xc_c000_0000
+ *
+ * For 440SPe revB:
+ * PCIE0: 0xd_0000_0000
+ * PCIE1: 0xd_2000_0000
+ * PCIE2: 0xd_4000_0000
+ *
+ * For 405EX:
+ * PCIE0: 0xa000_0000
+ * PCIE1: 0xc000_0000
+ *
+ * For 460EX/GT:
+ * PCIE0: 0xd_0000_0000
+ * PCIE1: 0xd_2000_0000
+ */
+static inline u64 ppc4xx_get_cfgaddr(int port)
+{
+#if defined(CONFIG_405EX)
+ if (port == 0)
+ return (u64)CONFIG_SYS_PCIE0_CFGBASE;
+ else
+ return (u64)CONFIG_SYS_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
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+ if (port == 0)
+ return 0x0000000d00000000ULL;
+ else
+ return 0x0000000d20000000ULL;
+#endif
+}
+
+/*
+ * 4xx boards as end point and root point setup
+ * and
+ * testing inbound and out bound windows
+ *
+ * 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
+ * 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 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 ? (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 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_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;
if (ppc4xx_init_pcie())
return -1;
+ ++core_init;
}
/*
- * 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.
+ * Initialize various parts of the PCI Express core for our port
*/
- 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;
+ ppc4xx_init_pcie_port_hw(port, rootport);
- 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;
- }
-
+ val = SDR_READ(SDRN_PESDR_RCSSTS(port));
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;
- }
+ val = SDR_READ(SDRN_PESDR_LOOP(port));
if (!(val & 0x00001000)) {
printf("PCIE%d: link is not up.\n", port);
return -1;
/*
* 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 = U64_TO_U32_LOW(addr);
+ high = U64_TO_U32_HIGH(addr);
+
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;
-
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
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;
+#endif
}
/*
* 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(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(port),
+ SDR_READ(SDRN_PESDR_RCSSET(port)) | 1 << 20);
mdelay(100);
return 0;
}
+int ppc4xx_init_pcie_rootport(int port)
+{
+ return ppc4xx_init_pcie_port(port, 1);
+}
+
+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)
{
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);
+ 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;
+ mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE;
+ rmbase = (u32 *)CONFIG_SYS_PCIE0_CFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE;
break;
case 1:
- mbase = (u32 *)CFG_PCIE1_XCFGBASE;
- rmbase = (u32 *)CFG_PCIE1_CFGBASE;
- hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
+ mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE;
+ rmbase = (u32 *)CONFIG_SYS_PCIE1_CFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE;
break;
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
case 2:
- mbase = (u32 *)CFG_PCIE2_XCFGBASE;
- rmbase = (u32 *)CFG_PCIE2_CFGBASE;
- hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
+ mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE;
+ rmbase = (u32 *)CONFIG_SYS_PCIE2_CFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE;
break;
+#endif
}
/*
* subregions and to enable the outbound translation.
*/
out_le32(mbase + PECFG_POM0LAH, 0x00000000);
- out_le32(mbase + PECFG_POM0LAL, 0x00000000);
+ out_le32(mbase + PECFG_POM0LAL, CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
+ debug("PECFG_POM0LA=%08x.%08x\n", in_le32(mbase + PECFG_POM0LAH),
+ in_le32(mbase + PECFG_POM0LAL));
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_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
+ debug("0:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
+ mfdcr(DCRN_PEGPL_OMR1BAH(PCIE0)),
+ mfdcr(DCRN_PEGPL_OMR1BAL(PCIE0)),
+ mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE0)),
+ mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE0)));
break;
case 1:
- mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), 0x0000000d);
- mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), (CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE));
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
+ debug("1:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
+ mfdcr(DCRN_PEGPL_OMR1BAH(PCIE1)),
+ mfdcr(DCRN_PEGPL_OMR1BAL(PCIE1)),
+ mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE1)),
+ mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE1)));
break;
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
case 2:
- mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
- mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), (CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE));
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
+ debug("2:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n",
+ mfdcr(DCRN_PEGPL_OMR1BAH(PCIE2)),
+ mfdcr(DCRN_PEGPL_OMR1BAL(PCIE2)),
+ mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE2)),
+ mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE2)));
break;
+#endif
}
- /* Set up 16GB inbound memory window at 0 */
+ /* Set up 4GB 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_BAR0HMPA, 0x7ffffff);
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_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);
/* Set Device and Vendor Id */
- switch (port) {
- case 0:
- out_le16(mbase + 0x200, 0xaaa0);
- out_le16(mbase + 0x202, 0xbed0);
- break;
- case 1:
- out_le16(mbase + 0x200, 0xaaa1);
- out_le16(mbase + 0x202, 0xbed1);
- break;
- case 2:
- out_le16(mbase + 0x200, 0xaaa2);
- out_le16(mbase + 0x202, 0xbed2);
- break;
- default:
- out_le16(mbase + 0x200, 0xaaa3);
- out_le16(mbase + 0x202, 0xbed3);
- }
+ out_le16(mbase + 0x200, 0xaaa0 + port);
+ out_le16(mbase + 0x202, 0xbed0 + port);
/* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
out_le32(mbase + 0x208, 0x06040001);
+ printf("PCIE%d: successfully set as root-complex\n", port);
}
int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port)
switch (port) {
case 0:
- mbase = (u32 *)CFG_PCIE0_XCFGBASE;
- hose->cfg_data = (u8 *)CFG_PCIE0_CFGBASE;
+ mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE;
break;
case 1:
- mbase = (u32 *)CFG_PCIE1_XCFGBASE;
- hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
+ mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE;
break;
+#if defined(CONFIG_SYS_PCIE2_CFGBASE)
case 2:
- mbase = (u32 *)CFG_PCIE2_XCFGBASE;
- hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
+ mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE;
+ hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE;
break;
+#endif
}
/*
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_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_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_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
break;
+#if CONFIG_SYS_PCIE_NR_PORTS > 2
case 2:
- mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
- mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), (CFG_PCIE_MEMBASE +
- port * CFG_PCIE_MEMSIZE));
+ mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH);
+ mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE +
+ port * CONFIG_SYS_PCIE_MEMSIZE);
mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
- ~(CFG_PCIE_MEMSIZE - 1) | 3);
+ ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3);
break;
+#endif
}
- /* Set up 16GB inbound memory window at 0 */
+ /* Set up 64MB 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_PIM01SAH, 0xffffffff);
+ out_le32(mbase + PECFG_PIM01SAL, 0xfc000000);
+
+ /* Setup BAR0 */
+ out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffff);
+ out_le32(mbase + PECFG_BAR0LMPA, 0xfc000000 | PCI_BASE_ADDRESS_MEM_TYPE_64);
+
+ /* Disable BAR1 & BAR2 */
+ out_le32(mbase + PECFG_BAR1MPA, 0);
+ out_le32(mbase + PECFG_BAR2HMPA, 0);
+ out_le32(mbase + PECFG_BAR2LMPA, 0);
+
+ out_le32(mbase + PECFG_PIM0LAL, U64_TO_U32_LOW(CONFIG_SYS_PCIE_INBOUND_BASE));
+ out_le32(mbase + PECFG_PIM0LAH, U64_TO_U32_HIGH(CONFIG_SYS_PCIE_INBOUND_BASE));
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 */
+ 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 */
+
+ /* Set Class Code to Processor/PPC */
+ out_le32(mbase + 0x208, 0x0b200001);
+
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(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);
+
+ printf("PCIE%d: successfully set as endpoint\n", port);
return 0;
}
projects / u-boot / blobdiff