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/*
* (C) Copyright 2006
* 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 <libfdt.h>
#include <fdt_support.h>
#include <spd_sdram.h>
#include <asm/ppc4xx-emac.h>
#include <miiphy.h>
#include <asm/processor.h>
#include <asm/4xx_pci.h>
DECLARE_GLOBAL_DATA_PTR;
extern int alpr_fpga_init(void);
int board_early_init_f (void)
{
/*-------------------------------------------------------------------------
* Initialize EBC CONFIG
*-------------------------------------------------------------------------*/
mtebc(EBC0_CFG, EBC_CFG_LE_UNLOCK |
EBC_CFG_PTD_DISABLE | EBC_CFG_RTC_64PERCLK |
EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_NONDEFAULT |
EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);
/*--------------------------------------------------------------------
* Setup the interrupt controller polarities, triggers, etc.
*-------------------------------------------------------------------*/
/*
* Because of the interrupt handling rework to handle 440GX interrupts
* with the common code, we needed to change names of the UIC registers.
* Here the new relationship:
*
* U-Boot name 440GX name
* -----------------------
* UIC0 UICB0
* UIC1 UIC0
* UIC2 UIC1
* UIC3 UIC2
*/
mtdcr (UIC1SR, 0xffffffff); /* clear all */
mtdcr (UIC1ER, 0x00000000); /* disable all */
mtdcr (UIC1CR, 0x00000009); /* SMI & UIC1 crit are critical */
mtdcr (UIC1PR, 0xfffffe03); /* per manual */
mtdcr (UIC1TR, 0x01c00000); /* per manual */
mtdcr (UIC1VR, 0x00000001); /* int31 highest, base=0x000 */
mtdcr (UIC1SR, 0xffffffff); /* clear all */
mtdcr (UIC2SR, 0xffffffff); /* clear all */
mtdcr (UIC2ER, 0x00000000); /* disable all */
mtdcr (UIC2CR, 0x00000000); /* all non-critical */
mtdcr (UIC2PR, 0xffffe0ff); /* per ref-board manual */
mtdcr (UIC2TR, 0x00ffc000); /* per ref-board manual */
mtdcr (UIC2VR, 0x00000001); /* int31 highest, base=0x000 */
mtdcr (UIC2SR, 0xffffffff); /* clear all */
mtdcr (UIC3SR, 0xffffffff); /* clear all */
mtdcr (UIC3ER, 0x00000000); /* disable all */
mtdcr (UIC3CR, 0x00000000); /* all non-critical */
mtdcr (UIC3PR, 0xffffffff); /* per ref-board manual */
mtdcr (UIC3TR, 0x00ff8c0f); /* per ref-board manual */
mtdcr (UIC3VR, 0x00000001); /* int31 highest, base=0x000 */
mtdcr (UIC3SR, 0xffffffff); /* clear all */
mtdcr (UIC0SR, 0xfc000000); /* clear all */
mtdcr (UIC0ER, 0x00000000); /* disable all */
mtdcr (UIC0CR, 0x00000000); /* all non-critical */
mtdcr (UIC0PR, 0xfc000000); /* */
mtdcr (UIC0TR, 0x00000000); /* */
mtdcr (UIC0VR, 0x00000001); /* */
/* Setup shutdown/SSD empty interrupt as inputs */
out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CONFIG_SYS_GPIO_SHUTDOWN | CONFIG_SYS_GPIO_SSD_EMPTY));
out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CONFIG_SYS_GPIO_SHUTDOWN | CONFIG_SYS_GPIO_SSD_EMPTY));
/* Setup GPIO/IRQ multiplexing */
mtsdr(SDR0_PFC0, 0x01a33e00);
return 0;
}
int last_stage_init(void)
{
unsigned short reg;
/*
* Configure LED's of both Marvell 88E1111 PHY's
*
* This has to be done after the 4xx ethernet driver is loaded,
* so "last_stage_init()" is the right place.
*/
miiphy_read("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, ®);
reg |= 0x0001;
miiphy_write("ppc_4xx_eth2", CONFIG_PHY2_ADDR, 0x18, reg);
miiphy_read("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, ®);
reg |= 0x0001;
miiphy_write("ppc_4xx_eth3", CONFIG_PHY3_ADDR, 0x18, reg);
return 0;
}
static int board_rev(void)
{
/* Setup as input */
out32(GPIO0_TCR, in32(GPIO0_TCR) & ~(CONFIG_SYS_GPIO_REV0 | CONFIG_SYS_GPIO_REV1));
out32(GPIO0_ODR, in32(GPIO0_ODR) & ~(CONFIG_SYS_GPIO_REV0 | CONFIG_SYS_GPIO_REV1));
return (in32(GPIO0_IR) >> 16) & 0x3;
}
int checkboard (void)
{
char buf[64];
int i = getenv_f("serial#", buf, sizeof(buf));
printf ("Board: ALPR");
if (i > 0) {
puts(", serial# ");
puts(buf);
}
printf(" (Rev. %d)\n", board_rev());
return (0);
}
#if defined(CONFIG_PCI)
/*
* Override weak pci_pre_init()
*/
int pci_pre_init(struct pci_controller *hose)
{
if (__pci_pre_init(hose) == 0)
return 0;
/* FPGA Init */
alpr_fpga_init();
return 1;
}
/*************************************************************************
* Override weak 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.
*
*
************************************************************************/
static void wait_for_pci_ready(void)
{
/*
* Configure EREADY as input
*/
out32(GPIO0_TCR, in32(GPIO0_TCR) & ~CONFIG_SYS_GPIO_EREADY);
udelay(1000);
for (;;) {
if (in32(GPIO0_IR) & CONFIG_SYS_GPIO_EREADY)
return;
}
}
int is_pci_host(struct pci_controller *hose)
{
wait_for_pci_ready();
return 1; /* return 1 for host controller */
}
#endif /* defined(CONFIG_PCI) */
/*************************************************************************
* pci_master_init
*
************************************************************************/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
void pci_master_init(struct pci_controller *hose)
{
/*--------------------------------------------------------------------------+
| PowerPC440 PCI Master configuration.
| Map PLB/processor addresses to PCI memory space.
| PLB address 0xA0000000-0xCFFFFFFF ==> PCI address 0x80000000-0xCFFFFFFF
| Use byte reversed out routines to handle endianess.
| Make this region non-prefetchable.
+--------------------------------------------------------------------------*/
out32r( PCIL0_POM0SA, 0 ); /* disable */
out32r( PCIL0_POM1SA, 0 ); /* disable */
out32r( PCIL0_POM2SA, 0 ); /* disable */
out32r(PCIL0_POM0LAL, CONFIG_SYS_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIL0_POM0LAH, 0x00000003); /* PMM0 Local Address */
out32r(PCIL0_POM0PCIAL, CONFIG_SYS_PCI_MEMBASE); /* PMM0 PCI Low Address */
out32r(PCIL0_POM0PCIAH, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIL0_POM0SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
out32r(PCIL0_POM1LAL, CONFIG_SYS_PCI_MEMBASE2); /* PMM0 Local Address */
out32r(PCIL0_POM1LAH, 0x00000003); /* PMM0 Local Address */
out32r(PCIL0_POM1PCIAL, CONFIG_SYS_PCI_MEMBASE2); /* PMM0 PCI Low Address */
out32r(PCIL0_POM1PCIAH, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIL0_POM1SA, ~(0x10000000 - 1) | 1); /* 256MB + enable region */
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) */
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