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/*
* (C) Copyright 2009
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
*
* Based on board/amcc/canyonlands/canyonlands.c
* (C) Copyright 2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* 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 <ppc440.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <i2c.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <asm/4xx_pcie.h>
#include <asm/gpio.h>
extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
DECLARE_GLOBAL_DATA_PTR;
#define CONFIG_SYS_BCSR3_PCIE 0x10
int board_early_init_f(void)
{
/*
* Setup the interrupt controller polarities, triggers, etc.
*/
mtdcr(uic0sr, 0xffffffff); /* clear all */
mtdcr(uic0er, 0x00000000); /* disable all */
mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
mtdcr(uic0pr, 0xffffffff); /* per ref-board manual */
mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(uic0sr, 0xffffffff); /* clear all */
mtdcr(uic1sr, 0xffffffff); /* clear all */
mtdcr(uic1er, 0x00000000); /* disable all */
mtdcr(uic1cr, 0x00000000); /* all non-critical */
mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
mtdcr(uic1vr, 0x00000000); /* 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, 0xffffffff); /* per ref-board manual */
mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
mtdcr(uic2vr, 0x00000000); /* 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, 0x00000000); /* per ref-board manual */
mtdcr(uic3vr, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(uic3sr, 0xffffffff); /* clear all */
/*
* Configure PFC (Pin Function Control) registers
* enable GPIO 49-63
* UART0: 4 pins
*/
mtsdr(SDR0_PFC0, 0x00007fff);
mtsdr(SDR0_PFC1, 0x00040000);
/* Enable PCI host functionality in SDR0_PCI0 */
mtsdr(SDR0_PCI0, 0xe0000000);
mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
/* Setup PLB4-AHB bridge based on the system address map */
mtdcr(AHB_TOP, 0x8000004B);
mtdcr(AHB_BOT, 0x8000004B);
/*
* Configure USB-STP pins as alternate and not GPIO
* It seems to be neccessary to configure the STP pins as GPIO
* input at powerup (perhaps while USB reset is asserted). So
* we configure those pins to their "real" function now.
*/
gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
/* Trigger board component reset */
out_le16((void *)CONFIG_SYS_IO_BASE, 0xffff);
out_le16((void *)CONFIG_SYS_IO_BASE + 0x100, 0xffff);
udelay(50);
out_le16((void *)CONFIG_SYS_IO_BASE, 0xffbf);
out_le16((void *)CONFIG_SYS_IO_BASE + 0x100, 0xffbf);
udelay(50);
out_le16((void *)CONFIG_SYS_IO_BASE, 0xffff);
out_le16((void *)CONFIG_SYS_IO_BASE + 0x100, 0xffff);
return 0;
}
int get_cpu_num(void)
{
int cpu = NA_OR_UNKNOWN_CPU;
return cpu;
}
int checkboard(void)
{
char *s = getenv("serial#");
#ifdef CONFIG_DEVCONCENTER
printf("Board: DevCon-Center");
#else
printf("Board: Intip");
#endif
if (s != NULL) {
puts(", serial# ");
puts(s);
}
putc('\n');
return 0;
}
/*
* 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
*/
out_le32((void *)PCIX0_PIM0SA, 0); /* disable */
out_le32((void *)PCIX0_PIM1SA, 0); /* disable */
out_le32((void *)PCIX0_PIM2SA, 0); /* disable */
out_le32((void *)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.
*/
out_le32((void *)PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE);
out_le32((void *)PCIX0_PIM0LAH, 0);
out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1);
out_le32((void *)PCIX0_BAR0, 0);
/*
* Program the board's subsystem id/vendor id
*/
out_le16((void *)PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID);
out_le16((void *)PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);
out_le16((void *)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)
{
/* Board is always configured as host. */
return 1;
}
#endif /* CONFIG_PCI */
int board_early_init_r(void)
{
/*
* CompactCenter has 64MBytes, DevCon-Center 128MBytes 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:
*
* 0xfn00.0000 -> 4.cn00.0000
*/
u32 bxcr_bw = (CONFIG_SYS_FLASH_SIZE == 128 << 20) ?
EBC_BXCR_BS_128MB : EBC_BXCR_BS_64MB;
/* Remap the NOR FLASH to 0xcn00.0000 ... 0xcfff.ffff */
mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L
| bxcr_bw
| EBC_BXCR_BU_RW
| EBC_BXCR_BW_16BIT);
/* Remove TLB entry of boot EBC mapping */
remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
/* Add TLB entry for 0xfn00.0000 -> 0x4.cn00.0000 */
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 misc_init_r(void)
{
u32 sdr0_srst1 = 0;
u32 eth_cfg;
/*
* Set EMAC mode/configuration (GMII, SGMII, RGMII...).
* This is board specific, so let's do it here.
*/
mfsdr(SDR0_ETH_CFG, eth_cfg);
/* disable SGMII mode */
eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
SDR0_ETH_CFG_SGMII1_ENABLE |
SDR0_ETH_CFG_SGMII0_ENABLE);
/* Set the for 2 RGMII mode */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
mtsdr(SDR0_ETH_CFG, eth_cfg);
/*
* The AHB Bridge core is held in reset after power-on or reset
* so enable it now
*/
mfsdr(SDR0_SRST1, sdr0_srst1);
sdr0_srst1 &= ~SDR0_SRST1_AHB;
mtsdr(SDR0_SRST1, sdr0_srst1);
return 0;
}
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
extern void __ft_board_setup(void *blob, bd_t *bd);
void ft_board_setup(void *blob, bd_t *bd)
{
__ft_board_setup(blob, bd);
fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status",
"disabled", sizeof("disabled"), 1);
fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status",
"disabled", sizeof("disabled"), 1);
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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