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Diffstat (limited to 'board/mosaixtech/icon/icon.c')
| -rw-r--r-- | board/mosaixtech/icon/icon.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/board/mosaixtech/icon/icon.c b/board/mosaixtech/icon/icon.c new file mode 100644 index 0000000..fbace9e --- /dev/null +++ b/board/mosaixtech/icon/icon.c @@ -0,0 +1,319 @@ +/* + * (C) Copyright 2009-2010 + * Stefan Roese, DENX Software Engineering, sr@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 + * + */ + +#include <common.h> +#include <ppc4xx.h> +#include <i2c.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <netdev.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/4xx_pcie.h> +#include <asm/errno.h> +#include <asm/mmu.h> + +DECLARE_GLOBAL_DATA_PTR; + +int board_early_init_f(void) +{ + unsigned long mfr; + + /* + * Interrupt controller setup for the ICON 440SPe board. + * + *-------------------------------------------------------------------- + * IRQ | 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 PowerPC 440SPe mode. + * 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 IRQs */ + mtdcr(UIC3PR, 0xffffffff); /* Set Interrupt Polarities*/ + mtdcr(UIC3TR, 0x001fffff); /* Set Interrupt Trigger Levels */ + mtdcr(UIC3VR, 0x00000001); /* Set Vect base=0,INT31 Highest prio */ + 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 IRQs */ + mtdcr(UIC2PR, 0xebebebff); /* Set Interrupt Polarities*/ + mtdcr(UIC2TR, 0x74747400); /* Set Interrupt Trigger Levels */ + mtdcr(UIC2VR, 0x00000001); /* Set Vect base=0,INT31 Highest prio */ + 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 IRQs */ + mtdcr(UIC1PR, 0xffffffff); /* Set Interrupt Polarities */ + mtdcr(UIC1TR, 0x001f8040); /* Set Interrupt Trigger Levels*/ + mtdcr(UIC1VR, 0x00000001); /* Set Vect base=0,INT31 Highest prio */ + mtdcr(UIC1SR, 0x00000000); /* clear all interrupts*/ + mtdcr(UIC1SR, 0xffffffff); /* clear all interrupts*/ + + mtdcr(UIC0SR, 0xffffffff); /* Clear all interrupts */ + mtdcr(UIC0ER, 0x00000000); /* disable all int. excepted cascade */ + mtdcr(UIC0CR, 0x00104001); /* Set Critical / Non Critical IRQs */ + mtdcr(UIC0PR, 0xffffffff); /* Set Interrupt Polarities*/ + mtdcr(UIC0TR, 0x010f0004); /* Set Interrupt Trigger Levels */ + mtdcr(UIC0VR, 0x00000001); /* Set Vect base=0,INT31 Highest prio */ + 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); + + mtsdr(SDR0_PFC0, CONFIG_SYS_PFC0); + + out_be32((void *)GPIO0_OR, CONFIG_SYS_GPIO_OR); + out_be32((void *)GPIO0_ODR, CONFIG_SYS_GPIO_ODR); + out_be32((void *)GPIO0_TCR, CONFIG_SYS_GPIO_TCR); + + return 0; +} + +int board_early_init_r(void) +{ + /* + * ICON has 64MBytes of NOR FLASH (Spansion 29GL512), but the + * boot EBC mapping only supports a maximum of 16MBytes + * (4.ff00.0000 - 4.ffff.ffff). + * To solve this problem, the FLASH has to get remapped to another + * EBC address which accepts bigger regions: + * + * 0xfc00.0000 -> 4.ec00.0000 + */ + + /* Remap the NOR FLASH to 0xec00.0000 ... 0xefff.ffff */ + mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000); + + /* Remove TLB entry of boot EBC mapping */ + remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20); + + /* Add TLB entry for 0xfc00.0000 -> 0x4.ec00.0000 */ + program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, + CONFIG_SYS_FLASH_SIZE, TLB_WORD2_I_ENABLE); + + /* + * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address + * 0xfc00.0000 is possible + */ + + /* + * Clear potential errors resulting from auto-calibration. + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + set_mcsr(get_mcsr()); + + return 0; +} + +int checkboard(void) +{ + char *s = getenv("serial#"); + + printf("Board: ICON"); + if (s != NULL) { + puts(", serial# "); + puts(s); + } + putc('\n'); + + return 0; +} + +/* + * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with + * board specific values. + * + * Tested successfully with the following SODIMM: + * Crucial CT6464AC667.4FE - 512MB SO-DIMM (single rank) + * + * Tests with Micron MT4HTF6464HZ-667H1 showed problems in "cold" state, + * directly after power-up. Only after running for more than 10 minutes + * real stable auto-calibration windows could be found. + */ +u32 ddr_wrdtr(u32 default_val) +{ + return SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV; +} + +u32 ddr_clktr(u32 default_val) +{ + return SDRAM_CLKTR_CLKP_180_DEG_ADV; +} + +/* + * Override the weak default implementation and return the + * last PCIe slot number (max number - 1). + */ +int board_pcie_last(void) +{ + /* Only 2 PCIe ports used on ICON, so the last one is 1 */ + return 1; +} |