diff options
Diffstat (limited to 'u-boot/board/amcc/yucca/yucca.c')
| -rw-r--r-- | u-boot/board/amcc/yucca/yucca.c | 732 |
1 files changed, 732 insertions, 0 deletions
diff --git a/u-boot/board/amcc/yucca/yucca.c b/u-boot/board/amcc/yucca/yucca.c new file mode 100644 index 0000000..b128e46 --- /dev/null +++ b/u-boot/board/amcc/yucca/yucca.c @@ -0,0 +1,732 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Port to AMCC-440SPE Evaluation Board SOP - April 2005 + * + * PCIe supporting routines derived from Linux 440SPe PCIe driver. + */ + +#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 + +#define FALSE 0 +#define TRUE 1 + +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 *s = getenv("serial#"); + + printf("Board: Yucca - AMCC 440SPe Evaluation Board"); + if (s != NULL) { + puts(", serial# "); + puts(s); + } + 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); +} |