--- /dev/null
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Port to AMCC-440SPE Evaluation Board SOP - April 2005
+ *
+ * PCIe supporting routines derived from Linux 440SPe PCIe driver.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <i2c.h>
+#include <netdev.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/4xx_pcie.h>
+#include <asm/errno.h>
+
+#include "yucca.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void fpga_init (void);
+
+#define DEBUG_ENV
+#ifdef DEBUG_ENV
+#define DEBUGF(fmt,args...) printf(fmt ,##args)
+#else
+#define DEBUGF(fmt,args...)
+#endif
+
+int board_early_init_f (void)
+{
+/*----------------------------------------------------------------------------+
+| Define Boot devices
++----------------------------------------------------------------------------*/
+#define BOOT_FROM_SMALL_FLASH 0x00
+#define BOOT_FROM_LARGE_FLASH_OR_SRAM 0x01
+#define BOOT_FROM_PCI 0x02
+#define BOOT_DEVICE_UNKNOWN 0x03
+
+/*----------------------------------------------------------------------------+
+| EBC Devices Characteristics
+| Peripheral Bank Access Parameters - EBC_BxAP
+| Peripheral Bank Configuration Register - EBC_BxCR
++----------------------------------------------------------------------------*/
+
+/*
+ * Small Flash and FRAM
+ * BU Value
+ * BxAP : 0x03800000 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
+ * B0CR : 0xff098000 - BAS = ff0 - 100 11 00 0000000000000
+ * B2CR : 0xe7098000 - BAS = e70 - 100 11 00 0000000000000
+ */
+#define EBC_BXAP_SMALL_FLASH EBC_BXAP_BME_DISABLED | \
+ EBC_BXAP_TWT_ENCODE(7) | \
+ EBC_BXAP_BCE_DISABLE | \
+ EBC_BXAP_BCT_2TRANS | \
+ EBC_BXAP_CSN_ENCODE(0) | \
+ EBC_BXAP_OEN_ENCODE(0) | \
+ EBC_BXAP_WBN_ENCODE(0) | \
+ EBC_BXAP_WBF_ENCODE(0) | \
+ EBC_BXAP_TH_ENCODE(0) | \
+ EBC_BXAP_RE_DISABLED | \
+ EBC_BXAP_SOR_DELAYED | \
+ EBC_BXAP_BEM_WRITEONLY | \
+ EBC_BXAP_PEN_DISABLED
+
+#define EBC_BXCR_SMALL_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
+ EBC_BXCR_BS_16MB | \
+ EBC_BXCR_BU_RW | \
+ EBC_BXCR_BW_8BIT
+
+#define EBC_BXCR_SMALL_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xe7000000) | \
+ EBC_BXCR_BS_16MB | \
+ EBC_BXCR_BU_RW | \
+ EBC_BXCR_BW_8BIT
+
+/*
+ * Large Flash and SRAM
+ * BU Value
+ * BxAP : 0x048ff240 - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
+ * B0CR : 0xff09a000 - BAS = ff0 - 100 11 01 0000000000000
+ * B2CR : 0xe709a000 - BAS = e70 - 100 11 01 0000000000000
+*/
+#define EBC_BXAP_LARGE_FLASH EBC_BXAP_BME_DISABLED | \
+ EBC_BXAP_TWT_ENCODE(7) | \
+ EBC_BXAP_BCE_DISABLE | \
+ EBC_BXAP_BCT_2TRANS | \
+ EBC_BXAP_CSN_ENCODE(0) | \
+ EBC_BXAP_OEN_ENCODE(0) | \
+ EBC_BXAP_WBN_ENCODE(0) | \
+ EBC_BXAP_WBF_ENCODE(0) | \
+ EBC_BXAP_TH_ENCODE(0) | \
+ EBC_BXAP_RE_DISABLED | \
+ EBC_BXAP_SOR_DELAYED | \
+ EBC_BXAP_BEM_WRITEONLY | \
+ EBC_BXAP_PEN_DISABLED
+
+#define EBC_BXCR_LARGE_FLASH_CS0 EBC_BXCR_BAS_ENCODE(0xFF000000) | \
+ EBC_BXCR_BS_16MB | \
+ EBC_BXCR_BU_RW | \
+ EBC_BXCR_BW_16BIT
+
+#define EBC_BXCR_LARGE_FLASH_CS2 EBC_BXCR_BAS_ENCODE(0xE7000000) | \
+ EBC_BXCR_BS_16MB | \
+ EBC_BXCR_BU_RW | \
+ EBC_BXCR_BW_16BIT
+
+/*
+ * FPGA
+ * BU value :
+ * B1AP = 0x05895240 - 0 00001011 0 00 10 01 01 01 001 0 0 1 0 00000
+ * B1CR = 0xe201a000 - BAS = e20 - 000 11 01 00000000000000
+ */
+#define EBC_BXAP_FPGA EBC_BXAP_BME_DISABLED | \
+ EBC_BXAP_TWT_ENCODE(11) | \
+ EBC_BXAP_BCE_DISABLE | \
+ EBC_BXAP_BCT_2TRANS | \
+ EBC_BXAP_CSN_ENCODE(10) | \
+ EBC_BXAP_OEN_ENCODE(1) | \
+ EBC_BXAP_WBN_ENCODE(1) | \
+ EBC_BXAP_WBF_ENCODE(1) | \
+ EBC_BXAP_TH_ENCODE(1) | \
+ EBC_BXAP_RE_DISABLED | \
+ EBC_BXAP_SOR_DELAYED | \
+ EBC_BXAP_BEM_RW | \
+ EBC_BXAP_PEN_DISABLED
+
+#define EBC_BXCR_FPGA_CS1 EBC_BXCR_BAS_ENCODE(0xe2000000) | \
+ EBC_BXCR_BS_1MB | \
+ EBC_BXCR_BU_RW | \
+ EBC_BXCR_BW_16BIT
+
+ unsigned long mfr;
+ /*
+ * Define Variables for EBC initialization depending on BOOTSTRAP option
+ */
+ unsigned long sdr0_pinstp, sdr0_sdstp1 ;
+ unsigned long bootstrap_settings, ebc_data_width, boot_selection;
+ int computed_boot_device = BOOT_DEVICE_UNKNOWN;
+
+ /*-------------------------------------------------------------------+
+ | Initialize EBC CONFIG -
+ | Keep the Default value, but the bit PDT which has to be set to 1 ?TBC
+ | default value :
+ | 0x07C00000 - 0 0 000 1 1 1 1 1 0000 0 00000 000000000000
+ |
+ +-------------------------------------------------------------------*/
+ mtebc(EBC0_CFG, EBC_CFG_LE_UNLOCK |
+ EBC_CFG_PTD_ENABLE |
+ EBC_CFG_RTC_16PERCLK |
+ EBC_CFG_ATC_PREVIOUS |
+ EBC_CFG_DTC_PREVIOUS |
+ EBC_CFG_CTC_PREVIOUS |
+ EBC_CFG_OEO_PREVIOUS |
+ EBC_CFG_EMC_DEFAULT |
+ EBC_CFG_PME_DISABLE |
+ EBC_CFG_PR_16);
+
+ /*-------------------------------------------------------------------+
+ |
+ | PART 1 : Initialize EBC Bank 1
+ | ==============================
+ | Bank1 is always associated to the EPLD.
+ | It has to be initialized prior to other banks settings computation
+ | since some board registers values may be needed to determine the
+ | boot type
+ |
+ +-------------------------------------------------------------------*/
+ mtebc(PB1AP, EBC_BXAP_FPGA);
+ mtebc(PB1CR, EBC_BXCR_FPGA_CS1);
+
+ /*-------------------------------------------------------------------+
+ |
+ | PART 2 : Determine which boot device was selected
+ | =================================================
+ |
+ | Read Pin Strap Register in PPC440SPe
+ | Result can either be :
+ | - Boot strap = boot from EBC 8bits => Small Flash
+ | - Boot strap = boot from PCI
+ | - Boot strap = IIC
+ | In case of boot from IIC, read Serial Device Strap Register1
+ |
+ | Result can either be :
+ | - Boot from EBC - EBC Bus Width = 8bits => Small Flash
+ | - Boot from EBC - EBC Bus Width = 16bits => Large Flash or SRAM
+ | - Boot from PCI
+ |
+ +-------------------------------------------------------------------*/
+ /* Read Pin Strap Register in PPC440SP */
+ mfsdr(SDR0_PINSTP, sdr0_pinstp);
+ bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK;
+
+ switch (bootstrap_settings) {
+ case SDR0_PINSTP_BOOTSTRAP_SETTINGS0:
+ /*
+ * Strapping Option A
+ * Boot from EBC - 8 bits , Small Flash
+ */
+ computed_boot_device = BOOT_FROM_SMALL_FLASH;
+ break;
+ case SDR0_PINSTP_BOOTSTRAP_SETTINGS1:
+ /*
+ * Strappping Option B
+ * Boot from PCI
+ */
+ computed_boot_device = BOOT_FROM_PCI;
+ break;
+ case SDR0_PINSTP_BOOTSTRAP_IIC_50_EN:
+ case SDR0_PINSTP_BOOTSTRAP_IIC_54_EN:
+ /*
+ * Strapping Option C or D
+ * Boot Settings in IIC EEprom address 0x50 or 0x54
+ * Read Serial Device Strap Register1 in PPC440SPe
+ */
+ mfsdr(SDR0_SDSTP1, sdr0_sdstp1);
+ boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK;
+ ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK;
+
+ switch (boot_selection) {
+ case SDR0_SDSTP1_ERPN_EBC:
+ switch (ebc_data_width) {
+ case SDR0_SDSTP1_EBCW_16_BITS:
+ computed_boot_device =
+ BOOT_FROM_LARGE_FLASH_OR_SRAM;
+ break;
+ case SDR0_SDSTP1_EBCW_8_BITS :
+ computed_boot_device = BOOT_FROM_SMALL_FLASH;
+ break;
+ }
+ break;
+
+ case SDR0_SDSTP1_ERPN_PCI:
+ computed_boot_device = BOOT_FROM_PCI;
+ break;
+ default:
+ /* should not occure */
+ computed_boot_device = BOOT_DEVICE_UNKNOWN;
+ }
+ break;
+ default:
+ /* should not be */
+ computed_boot_device = BOOT_DEVICE_UNKNOWN;
+ break;
+ }
+
+ /*-------------------------------------------------------------------+
+ |
+ | PART 3 : Compute EBC settings depending on selected boot device
+ | ====== ======================================================
+ |
+ | Resulting EBC init will be among following configurations :
+ |
+ | - Boot from EBC 8bits => boot from Small Flash selected
+ | EBC-CS0 = Small Flash
+ | EBC-CS2 = Large Flash and SRAM
+ |
+ | - Boot from EBC 16bits => boot from Large Flash or SRAM
+ | EBC-CS0 = Large Flash or SRAM
+ | EBC-CS2 = Small Flash
+ |
+ | - Boot from PCI
+ | EBC-CS0 = not initialized to avoid address contention
+ | EBC-CS2 = same as boot from Small Flash selected
+ |
+ +-------------------------------------------------------------------*/
+ unsigned long ebc0_cs0_bxap_value = 0, ebc0_cs0_bxcr_value = 0;
+ unsigned long ebc0_cs2_bxap_value = 0, ebc0_cs2_bxcr_value = 0;
+
+ switch (computed_boot_device) {
+ /*-------------------------------------------------------------------*/
+ case BOOT_FROM_PCI:
+ /*-------------------------------------------------------------------*/
+ /*
+ * By Default CS2 is affected to LARGE Flash
+ * do not initialize SMALL FLASH to avoid address contention
+ * Large Flash
+ */
+ ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH;
+ ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
+ break;
+
+ /*-------------------------------------------------------------------*/
+ case BOOT_FROM_SMALL_FLASH:
+ /*-------------------------------------------------------------------*/
+ ebc0_cs0_bxap_value = EBC_BXAP_SMALL_FLASH;
+ ebc0_cs0_bxcr_value = EBC_BXCR_SMALL_FLASH_CS0;
+
+ /*
+ * Large Flash or SRAM
+ */
+ /* ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH; */
+ ebc0_cs2_bxap_value = 0x048ff240;
+ ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
+ break;
+
+ /*-------------------------------------------------------------------*/
+ case BOOT_FROM_LARGE_FLASH_OR_SRAM:
+ /*-------------------------------------------------------------------*/
+ ebc0_cs0_bxap_value = EBC_BXAP_LARGE_FLASH;
+ ebc0_cs0_bxcr_value = EBC_BXCR_LARGE_FLASH_CS0;
+
+ /* Small flash */
+ ebc0_cs2_bxap_value = EBC_BXAP_SMALL_FLASH;
+ ebc0_cs2_bxcr_value = EBC_BXCR_SMALL_FLASH_CS2;
+ break;
+
+ /*-------------------------------------------------------------------*/
+ default:
+ /*-------------------------------------------------------------------*/
+ /* BOOT_DEVICE_UNKNOWN */
+ break;
+ }
+
+ mtebc(PB0AP, ebc0_cs0_bxap_value);
+ mtebc(PB0CR, ebc0_cs0_bxcr_value);
+ mtebc(PB2AP, ebc0_cs2_bxap_value);
+ mtebc(PB2CR, ebc0_cs2_bxcr_value);
+
+ /*--------------------------------------------------------------------+
+ | Interrupt controller setup for the AMCC 440SPe Evaluation board.
+ +--------------------------------------------------------------------+
+ +---------------------------------------------------------------------+
+ |Interrupt| Source | Pol. | Sensi.| Crit. |
+ +---------+-----------------------------------+-------+-------+-------+
+ | IRQ 00 | UART0 | High | Level | Non |
+ | IRQ 01 | UART1 | High | Level | Non |
+ | IRQ 02 | IIC0 | High | Level | Non |
+ | IRQ 03 | IIC1 | High | Level | Non |
+ | IRQ 04 | PCI0X0 MSG IN | High | Level | Non |
+ | IRQ 05 | PCI0X0 CMD Write | High | Level | Non |
+ | IRQ 06 | PCI0X0 Power Mgt | High | Level | Non |
+ | IRQ 07 | PCI0X0 VPD Access | Rising| Edge | Non |
+ | IRQ 08 | PCI0X0 MSI level 0 | High | Lvl/ed| Non |
+ | IRQ 09 | External IRQ 15 - (PCI-Express) | pgm H | Pgm | Non |
+ | IRQ 10 | UIC2 Non-critical Int. | NA | NA | Non |
+ | IRQ 11 | UIC2 Critical Interrupt | NA | NA | Crit |
+ | IRQ 12 | PCI Express MSI Level 0 | Rising| Edge | Non |
+ | IRQ 13 | PCI Express MSI Level 1 | Rising| Edge | Non |
+ | IRQ 14 | PCI Express MSI Level 2 | Rising| Edge | Non |
+ | IRQ 15 | PCI Express MSI Level 3 | Rising| Edge | Non |
+ | IRQ 16 | UIC3 Non-critical Int. | NA | NA | Non |
+ | IRQ 17 | UIC3 Critical Interrupt | NA | NA | Crit |
+ | IRQ 18 | External IRQ 14 - (PCI-Express) | Pgm | Pgm | Non |
+ | IRQ 19 | DMA Channel 0 FIFO Full | High | Level | Non |
+ | IRQ 20 | DMA Channel 0 Stat FIFO | High | Level | Non |
+ | IRQ 21 | DMA Channel 1 FIFO Full | High | Level | Non |
+ | IRQ 22 | DMA Channel 1 Stat FIFO | High | Level | Non |
+ | IRQ 23 | I2O Inbound Doorbell | High | Level | Non |
+ | IRQ 24 | Inbound Post List FIFO Not Empt | High | Level | Non |
+ | IRQ 25 | I2O Region 0 LL PLB Write | High | Level | Non |
+ | IRQ 26 | I2O Region 1 LL PLB Write | High | Level | Non |
+ | IRQ 27 | I2O Region 0 HB PLB Write | High | Level | Non |
+ | IRQ 28 | I2O Region 1 HB PLB Write | High | Level | Non |
+ | IRQ 29 | GPT Down Count Timer | Rising| Edge | Non |
+ | IRQ 30 | UIC1 Non-critical Int. | NA | NA | Non |
+ | IRQ 31 | UIC1 Critical Interrupt | NA | NA | Crit. |
+ |----------------------------------------------------------------------
+ | IRQ 32 | Ext. IRQ 13 - (PCI-Express) |pgm (H)|pgm/Lvl| Non |
+ | IRQ 33 | MAL Serr | High | Level | Non |
+ | IRQ 34 | MAL Txde | High | Level | Non |
+ | IRQ 35 | MAL Rxde | High | Level | Non |
+ | IRQ 36 | DMC CE or DMC UE | High | Level | Non |
+ | IRQ 37 | EBC or UART2 | High |Lvl Edg| Non |
+ | IRQ 38 | MAL TX EOB | High | Level | Non |
+ | IRQ 39 | MAL RX EOB | High | Level | Non |
+ | IRQ 40 | PCIX0 MSI Level 1 | High |Lvl Edg| Non |
+ | IRQ 41 | PCIX0 MSI level 2 | High |Lvl Edg| Non |
+ | IRQ 42 | PCIX0 MSI level 3 | High |Lvl Edg| Non |
+ | IRQ 43 | L2 Cache | Risin | Edge | Non |
+ | IRQ 44 | GPT Compare Timer 0 | Risin | Edge | Non |
+ | IRQ 45 | GPT Compare Timer 1 | Risin | Edge | Non |
+ | IRQ 46 | GPT Compare Timer 2 | Risin | Edge | Non |
+ | IRQ 47 | GPT Compare Timer 3 | Risin | Edge | Non |
+ | IRQ 48 | GPT Compare Timer 4 | Risin | Edge | Non |
+ | IRQ 49 | Ext. IRQ 12 - PCI-X |pgm/Fal|pgm/Lvl| Non |
+ | IRQ 50 | Ext. IRQ 11 - |pgm (H)|pgm/Lvl| Non |
+ | IRQ 51 | Ext. IRQ 10 - |pgm (H)|pgm/Lvl| Non |
+ | IRQ 52 | Ext. IRQ 9 |pgm (H)|pgm/Lvl| Non |
+ | IRQ 53 | Ext. IRQ 8 |pgm (H)|pgm/Lvl| Non |
+ | IRQ 54 | DMA Error | High | Level | Non |
+ | IRQ 55 | DMA I2O Error | High | Level | Non |
+ | IRQ 56 | Serial ROM | High | Level | Non |
+ | IRQ 57 | PCIX0 Error | High | Edge | Non |
+ | IRQ 58 | Ext. IRQ 7- |pgm (H)|pgm/Lvl| Non |
+ | IRQ 59 | Ext. IRQ 6- |pgm (H)|pgm/Lvl| Non |
+ | IRQ 60 | EMAC0 Interrupt | High | Level | Non |
+ | IRQ 61 | EMAC0 Wake-up | High | Level | Non |
+ | IRQ 62 | Reserved | High | Level | Non |
+ | IRQ 63 | XOR | High | Level | Non |
+ |----------------------------------------------------------------------
+ | IRQ 64 | PE0 AL | High | Level | Non |
+ | IRQ 65 | PE0 VPD Access | Risin | Edge | Non |
+ | IRQ 66 | PE0 Hot Reset Request | Risin | Edge | Non |
+ | IRQ 67 | PE0 Hot Reset Request | Falli | Edge | Non |
+ | IRQ 68 | PE0 TCR | High | Level | Non |
+ | IRQ 69 | PE0 BusMaster VCO | Falli | Edge | Non |
+ | IRQ 70 | PE0 DCR Error | High | Level | Non |
+ | IRQ 71 | Reserved | N/A | N/A | Non |
+ | IRQ 72 | PE1 AL | High | Level | Non |
+ | IRQ 73 | PE1 VPD Access | Risin | Edge | Non |
+ | IRQ 74 | PE1 Hot Reset Request | Risin | Edge | Non |
+ | IRQ 75 | PE1 Hot Reset Request | Falli | Edge | Non |
+ | IRQ 76 | PE1 TCR | High | Level | Non |
+ | IRQ 77 | PE1 BusMaster VCO | Falli | Edge | Non |
+ | IRQ 78 | PE1 DCR Error | High | Level | Non |
+ | IRQ 79 | Reserved | N/A | N/A | Non |
+ | IRQ 80 | PE2 AL | High | Level | Non |
+ | IRQ 81 | PE2 VPD Access | Risin | Edge | Non |
+ | IRQ 82 | PE2 Hot Reset Request | Risin | Edge | Non |
+ | IRQ 83 | PE2 Hot Reset Request | Falli | Edge | Non |
+ | IRQ 84 | PE2 TCR | High | Level | Non |
+ | IRQ 85 | PE2 BusMaster VCO | Falli | Edge | Non |
+ | IRQ 86 | PE2 DCR Error | High | Level | Non |
+ | IRQ 87 | Reserved | N/A | N/A | Non |
+ | IRQ 88 | External IRQ(5) | Progr | Progr | Non |
+ | IRQ 89 | External IRQ 4 - Ethernet | Progr | Progr | Non |
+ | IRQ 90 | External IRQ 3 - PCI-X | Progr | Progr | Non |
+ | IRQ 91 | External IRQ 2 - PCI-X | Progr | Progr | Non |
+ | IRQ 92 | External IRQ 1 - PCI-X | Progr | Progr | Non |
+ | IRQ 93 | External IRQ 0 - PCI-X | Progr | Progr | Non |
+ | IRQ 94 | Reserved | N/A | N/A | Non |
+ | IRQ 95 | Reserved | N/A | N/A | Non |
+ |---------------------------------------------------------------------
+ | IRQ 96 | PE0 INTA | High | Level | Non |
+ | IRQ 97 | PE0 INTB | High | Level | Non |
+ | IRQ 98 | PE0 INTC | High | Level | Non |
+ | IRQ 99 | PE0 INTD | High | Level | Non |
+ | IRQ 100 | PE1 INTA | High | Level | Non |
+ | IRQ 101 | PE1 INTB | High | Level | Non |
+ | IRQ 102 | PE1 INTC | High | Level | Non |
+ | IRQ 103 | PE1 INTD | High | Level | Non |
+ | IRQ 104 | PE2 INTA | High | Level | Non |
+ | IRQ 105 | PE2 INTB | High | Level | Non |
+ | IRQ 106 | PE2 INTC | High | Level | Non |
+ | IRQ 107 | PE2 INTD | Risin | Edge | Non |
+ | IRQ 108 | PCI Express MSI Level 4 | Risin | Edge | Non |
+ | IRQ 109 | PCI Express MSI Level 5 | Risin | Edge | Non |
+ | IRQ 110 | PCI Express MSI Level 6 | Risin | Edge | Non |
+ | IRQ 111 | PCI Express MSI Level 7 | Risin | Edge | Non |
+ | IRQ 116 | PCI Express MSI Level 12 | Risin | Edge | Non |
+ | IRQ 112 | PCI Express MSI Level 8 | Risin | Edge | Non |
+ | IRQ 113 | PCI Express MSI Level 9 | Risin | Edge | Non |
+ | IRQ 114 | PCI Express MSI Level 10 | Risin | Edge | Non |
+ | IRQ 115 | PCI Express MSI Level 11 | Risin | Edge | Non |
+ | IRQ 117 | PCI Express MSI Level 13 | Risin | Edge | Non |
+ | IRQ 118 | PCI Express MSI Level 14 | Risin | Edge | Non |
+ | IRQ 119 | PCI Express MSI Level 15 | Risin | Edge | Non |
+ | IRQ 120 | PCI Express MSI Level 16 | Risin | Edge | Non |
+ | IRQ 121 | PCI Express MSI Level 17 | Risin | Edge | Non |
+ | IRQ 122 | PCI Express MSI Level 18 | Risin | Edge | Non |
+ | IRQ 123 | PCI Express MSI Level 19 | Risin | Edge | Non |
+ | IRQ 124 | PCI Express MSI Level 20 | Risin | Edge | Non |
+ | IRQ 125 | PCI Express MSI Level 21 | Risin | Edge | Non |
+ | IRQ 126 | PCI Express MSI Level 22 | Risin | Edge | Non |
+ | IRQ 127 | PCI Express MSI Level 23 | Risin | Edge | Non |
+ +---------+-----------------------------------+-------+-------+------*/
+ /*--------------------------------------------------------------------+
+ | Put UICs in PowerPC440SPemode.
+ | Initialise UIC registers. Clear all interrupts. Disable all
+ | interrupts.
+ | Set critical interrupt values. Set interrupt polarities. Set
+ | interrupt trigger levels. Make bit 0 High priority. Clear all
+ | interrupts again.
+ +-------------------------------------------------------------------*/
+ mtdcr (UIC3SR, 0xffffffff); /* Clear all interrupts */
+ mtdcr (UIC3ER, 0x00000000); /* disable all interrupts */
+ mtdcr (UIC3CR, 0x00000000); /* Set Critical / Non Critical
+ * interrupts */
+ mtdcr (UIC3PR, 0xffffffff); /* Set Interrupt Polarities */
+ mtdcr (UIC3TR, 0x001fffff); /* Set Interrupt Trigger Levels */
+ mtdcr (UIC3VR, 0x00000001); /* Set Vect base=0,INT31 Highest
+ * priority */
+ mtdcr (UIC3SR, 0x00000000); /* clear all interrupts */
+ mtdcr (UIC3SR, 0xffffffff); /* clear all interrupts */
+
+ mtdcr (UIC2SR, 0xffffffff); /* Clear all interrupts */
+ mtdcr (UIC2ER, 0x00000000); /* disable all interrupts */
+ mtdcr (UIC2CR, 0x00000000); /* Set Critical / Non Critical
+ * interrupts */
+ mtdcr (UIC2PR, 0xebebebff); /* Set Interrupt Polarities */
+ mtdcr (UIC2TR, 0x74747400); /* Set Interrupt Trigger Levels */
+ mtdcr (UIC2VR, 0x00000001); /* Set Vect base=0,INT31 Highest
+ * priority */
+ mtdcr (UIC2SR, 0x00000000); /* clear all interrupts */
+ mtdcr (UIC2SR, 0xffffffff); /* clear all interrupts */
+
+ mtdcr (UIC1SR, 0xffffffff); /* Clear all interrupts */
+ mtdcr (UIC1ER, 0x00000000); /* disable all interrupts */
+ mtdcr (UIC1CR, 0x00000000); /* Set Critical / Non Critical
+ * interrupts */
+ mtdcr (UIC1PR, 0xffffffff); /* Set Interrupt Polarities */
+ mtdcr (UIC1TR, 0x001f8040); /* Set Interrupt Trigger Levels */
+ mtdcr (UIC1VR, 0x00000001); /* Set Vect base=0,INT31 Highest
+ * priority */
+ mtdcr (UIC1SR, 0x00000000); /* clear all interrupts */
+ mtdcr (UIC1SR, 0xffffffff); /* clear all interrupts */
+
+ mtdcr (UIC0SR, 0xffffffff); /* Clear all interrupts */
+ mtdcr (UIC0ER, 0x00000000); /* disable all interrupts excepted
+ * cascade to be checked */
+ mtdcr (UIC0CR, 0x00104001); /* Set Critical / Non Critical
+ * interrupts */
+ mtdcr (UIC0PR, 0xffffffff); /* Set Interrupt Polarities */
+ mtdcr (UIC0TR, 0x010f0004); /* Set Interrupt Trigger Levels */
+ mtdcr (UIC0VR, 0x00000001); /* Set Vect base=0,INT31 Highest
+ * priority */
+ mtdcr (UIC0SR, 0x00000000); /* clear all interrupts */
+ mtdcr (UIC0SR, 0xffffffff); /* clear all interrupts */
+
+ mfsdr(SDR0_MFR, mfr);
+ mfr |= SDR0_MFR_FIXD; /* Workaround for PCI/DMA */
+ mtsdr(SDR0_MFR, mfr);
+
+ fpga_init();
+
+ return 0;
+}
+
+int checkboard (void)
+{
+ char buf[64];
+ int i = getenv_f("serial#", buf, sizeof(buf));
+
+ printf("Board: Yucca - AMCC 440SPe Evaluation Board");
+ if (i > 0) {
+ puts(", serial# ");
+ puts(buf);
+ }
+ putc('\n');
+
+ return 0;
+}
+
+/*
+ * Override the default functions in arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c with
+ * board specific values.
+ */
+static int ppc440spe_rev_a(void)
+{
+ if ((get_pvr() == PVR_440SPe_6_RA) || (get_pvr() == PVR_440SPe_RA))
+ return 1;
+ else
+ return 0;
+}
+
+u32 ddr_wrdtr(u32 default_val) {
+ /*
+ * Yucca boards with 440SPe rev. A need a slightly different setup
+ * for the MCIF0_WRDTR register.
+ */
+ if (ppc440spe_rev_a())
+ return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_270_DEG_ADV);
+
+ return default_val;
+}
+
+u32 ddr_clktr(u32 default_val) {
+ /*
+ * Yucca boards with 440SPe rev. A need a slightly different setup
+ * for the MCIF0_CLKTR register.
+ */
+ if (ppc440spe_rev_a())
+ return (SDRAM_CLKTR_CLKP_180_DEG_ADV);
+
+ return default_val;
+}
+
+#if defined(CONFIG_PCI)
+int board_pcie_card_present(int port)
+{
+ u16 reg;
+
+ reg = in_be16((u16 *)FPGA_REG1C);
+ switch(port) {
+ case 0:
+ return !(reg & FPGA_REG1C_PE0_PRSNT);
+ case 1:
+ return !(reg & FPGA_REG1C_PE1_PRSNT);
+ case 2:
+ return !(reg & FPGA_REG1C_PE2_PRSNT);
+ default:
+ return 0;
+ }
+}
+
+/*
+ * For the given slot, set endpoint mode, send power to the slot,
+ * turn on the green LED and turn off the yellow LED, enable the
+ * clock. In endpoint mode reset bit is read only.
+ */
+void board_pcie_setup_port(int port, int rootpoint)
+{
+ u16 power, clock, green_led, yellow_led,
+ reset_off, rp, ep;
+
+ switch (port) {
+ case 0:
+ rp = FPGA_REG1C_PE0_ROOTPOINT;
+ ep = 0;
+ break;
+ case 1:
+ rp = 0;
+ ep = FPGA_REG1C_PE1_ENDPOINT;
+ break;
+ case 2:
+ rp = 0;
+ ep = FPGA_REG1C_PE2_ENDPOINT;
+ break;
+
+ default:
+ return;
+ }
+
+ power = FPGA_REG1A_PWRON_ENCODE(port);
+ green_led = FPGA_REG1A_GLED_ENCODE(port);
+ clock = FPGA_REG1A_REFCLK_ENCODE(port);
+ yellow_led = FPGA_REG1A_YLED_ENCODE(port);
+ reset_off = FPGA_REG1C_PERST_ENCODE(port);
+
+ out_be16((u16 *)FPGA_REG1A, ~(power | clock | green_led) &
+ (yellow_led | in_be16((u16 *)FPGA_REG1A)));
+
+ out_be16((u16 *)FPGA_REG1C, ~(ep | reset_off) &
+ (rp | in_be16((u16 *)FPGA_REG1C)));
+
+ if (rootpoint) {
+ /*
+ * Leave device in reset for a while after powering on the
+ * slot to give it a chance to initialize.
+ */
+ udelay(250 * 1000);
+
+ out_be16((u16 *)FPGA_REG1C,
+ reset_off | in_be16((u16 *)FPGA_REG1C));
+ }
+}
+#endif /* defined(CONFIG_PCI) */
+
+int misc_init_f (void)
+{
+ uint reg;
+
+ out16(FPGA_REG10, (in16(FPGA_REG10) &
+ ~(FPGA_REG10_AUTO_NEG_DIS|FPGA_REG10_RESET_ETH)) |
+ FPGA_REG10_10MHZ_ENABLE |
+ FPGA_REG10_100MHZ_ENABLE |
+ FPGA_REG10_GIGABIT_ENABLE |
+ FPGA_REG10_FULL_DUPLEX );
+
+ udelay(10000); /* wait 10ms */
+
+ out16(FPGA_REG10, (in16(FPGA_REG10) | FPGA_REG10_RESET_ETH));
+
+ /* minimal init for PCIe */
+ /* pci express 0 Endpoint Mode */
+ mfsdr(SDRN_PESDR_DLPSET(0), reg);
+ reg &= (~0x00400000);
+ mtsdr(SDRN_PESDR_DLPSET(0), reg);
+ /* pci express 1 Rootpoint Mode */
+ mfsdr(SDRN_PESDR_DLPSET(1), reg);
+ reg |= 0x00400000;
+ mtsdr(SDRN_PESDR_DLPSET(1), reg);
+ /* pci express 2 Rootpoint Mode */
+ mfsdr(SDRN_PESDR_DLPSET(2), reg);
+ reg |= 0x00400000;
+ mtsdr(SDRN_PESDR_DLPSET(2), reg);
+
+ out16(FPGA_REG1C,(in16 (FPGA_REG1C) &
+ ~FPGA_REG1C_PE0_ROOTPOINT &
+ ~FPGA_REG1C_PE1_ENDPOINT &
+ ~FPGA_REG1C_PE2_ENDPOINT));
+
+ return 0;
+}
+
+void fpga_init(void)
+{
+ /*
+ * by default sdram access is disabled by fpga
+ */
+ out16(FPGA_REG10, (in16 (FPGA_REG10) |
+ FPGA_REG10_SDRAM_ENABLE |
+ FPGA_REG10_ENABLE_DISPLAY ));
+
+ return;
+}
+
+/*---------------------------------------------------------------------------+
+ | onboard_pci_arbiter_selected => from EPLD
+ +---------------------------------------------------------------------------*/
+int onboard_pci_arbiter_selected(int core_pci)
+{
+#if 0
+ unsigned long onboard_pci_arbiter_sel;
+
+ onboard_pci_arbiter_sel = in16(FPGA_REG0) & FPGA_REG0_EXT_ARB_SEL_MASK;
+
+ if (onboard_pci_arbiter_sel == FPGA_REG0_EXT_ARB_SEL_EXTERNAL)
+ return (BOARD_OPTION_SELECTED);
+ else
+#endif
+ return (BOARD_OPTION_NOT_SELECTED);
+}
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis);
+ return pci_eth_init(bis);
+}
Code Review / kvmfornfv.git / blobdiff