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/*
* (C) Copyright 2007-2008
* 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>
DECLARE_GLOBAL_DATA_PTR;
int board_early_init_f (void)
{
unsigned long mfr;
/*----------------------------------------------------------------------+
* Interrupt controller setup for the Katmai 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(sdr_mfr, mfr);
mfr |= SDR0_MFR_FIXD; /* Workaround for PCI/DMA */
mtsdr(sdr_mfr, mfr);
mtsdr(SDR0_PFC0, CONFIG_SYS_PFC0);
out32(GPIO0_OR, CONFIG_SYS_GPIO_OR);
out32(GPIO0_ODR, CONFIG_SYS_GPIO_ODR);
out32(GPIO0_TCR, CONFIG_SYS_GPIO_TCR);
return 0;
}
int checkboard (void)
{
char *s = getenv("serial#");
printf("Board: Katmai - AMCC 440SPe Evaluation Board");
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.
*/
u32 ddr_wrdtr(u32 default_val) {
return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
}
u32 ddr_clktr(u32 default_val) {
return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
}
/*************************************************************************
* pci_pre_init
*
* This routine is called just prior to registering the hose and gives
* the board the opportunity to check things. Returning a value of zero
* indicates that things are bad & PCI initialization should be aborted.
*
* Different boards may wish to customize the pci controller structure
* (add regions, override default access routines, etc) or perform
* certain pre-initialization actions.
*
************************************************************************/
#if defined(CONFIG_PCI)
int pci_pre_init(struct pci_controller * hose )
{
unsigned long strap;
/*-------------------------------------------------------------------+
* The katmai board is always configured as the host & requires the
* PCI arbiter to be enabled.
*-------------------------------------------------------------------*/
mfsdr(sdr_sdstp1, strap);
if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ) {
printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
return 0;
}
return 1;
}
#endif /* defined(CONFIG_PCI) */
/*************************************************************************
* pci_target_init
*
* The bootstrap configuration provides default settings for the pci
* inbound map (PIM). But the bootstrap config choices are limited and
* may not be sufficient for a given board.
*
************************************************************************/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller * hose )
{
/*-------------------------------------------------------------------+
* Disable everything
*-------------------------------------------------------------------*/
out32r( PCIX0_PIM0SA, 0 ); /* disable */
out32r( PCIX0_PIM1SA, 0 ); /* disable */
out32r( PCIX0_PIM2SA, 0 ); /* disable */
out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
/*-------------------------------------------------------------------+
* Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
* strapping options to not support sizes such as 128/256 MB.
*-------------------------------------------------------------------*/
out32r( PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE );
out32r( PCIX0_PIM0LAH, 0 );
out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
out32r( PCIX0_BAR0, 0 );
/*-------------------------------------------------------------------+
* Program the board's subsystem id/vendor id
*-------------------------------------------------------------------*/
out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID );
out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
#if defined(CONFIG_PCI)
/*************************************************************************
* is_pci_host
*
* This routine is called to determine if a pci scan should be
* performed. With various hardware environments (especially cPCI and
* PPMC) it's insufficient to depend on the state of the arbiter enable
* bit in the strap register, or generic host/adapter assumptions.
*
* Rather than hard-code a bad assumption in the general 440 code, the
* 440 pci code requires the board to decide at runtime.
*
* Return 0 for adapter mode, non-zero for host (monarch) mode.
*
*
************************************************************************/
int is_pci_host(struct pci_controller *hose)
{
/* The katmai board is always configured as host. */
return 1;
}
static int katmai_pcie_card_present(int port)
{
u32 val;
val = in32(GPIO0_IR);
switch (port) {
case 0:
return !(val & GPIO_VAL(CONFIG_SYS_GPIO_PCIE_PRESENT0));
case 1:
return !(val & GPIO_VAL(CONFIG_SYS_GPIO_PCIE_PRESENT1));
case 2:
return !(val & GPIO_VAL(CONFIG_SYS_GPIO_PCIE_PRESENT2));
default:
return 0;
}
}
static struct pci_controller pcie_hose[3] = {{0},{0},{0}};
void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
int ret = 0;
char *env;
unsigned int delay;
/*
* assume we're called after the PCIX hose is initialized, which takes
* bus ID 0 and therefore start numbering PCIe's from 1.
*/
bus = busno;
for (i = 0; i <= 2; i++) {
/* Check for katmai card presence */
if (!katmai_pcie_card_present(i))
continue;
if (is_end_point(i))
ret = ppc4xx_init_pcie_endport(i);
else
ret = ppc4xx_init_pcie_rootport(i);
if (ret) {
printf("PCIE%d: initialization as %s failed\n", i,
is_end_point(i) ? "endpoint" : "root-complex");
continue;
}
hose = &pcie_hose[i];
hose->first_busno = bus;
hose->last_busno = bus;
hose->current_busno = bus;
/* setup mem resource */
pci_set_region(hose->regions + 0,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMSIZE,
PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
if (is_end_point(i)) {
ppc4xx_setup_pcie_endpoint(hose, i);
/*
* Reson for no scanning is endpoint can not generate
* upstream configuration accesses.
*/
} else {
ppc4xx_setup_pcie_rootpoint(hose, i);
env = getenv ("pciscandelay");
if (env != NULL) {
delay = simple_strtoul(env, NULL, 10);
if (delay > 5)
printf("Warning, expect noticable delay before "
"PCIe scan due to 'pciscandelay' value!\n");
mdelay(delay * 1000);
}
/*
* Config access can only go down stream
*/
hose->last_busno = pci_hose_scan(hose);
bus = hose->last_busno + 1;
}
}
}
#endif /* defined(CONFIG_PCI) */
#ifdef CONFIG_POST
/*
* Returns 1 if keys pressed to start the power-on long-running tests
* Called from board_init_f().
*/
int post_hotkeys_pressed(void)
{
return (ctrlc());
}
#endif
int board_eth_init(bd_t *bis)
{
cpu_eth_init(bis);
return pci_eth_init(bis);
}
|
