u-boot/board/amcc/sequoia/sequoia.c

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/*
* (C) Copyright 2006-2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* (C) Copyright 2006
* Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
*
* 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 <ppc440.h>
#include <asm/gpio.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/bitops.h>
#include <asm/ppc4xx-intvec.h>
DECLARE_GLOBAL_DATA_PTR;
extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
ulong flash_get_size (ulong base, int banknum);
int board_early_init_f(void)
{
u32 sdr0_cust0;
u32 sdr0_pfc1, sdr0_pfc2;
u32 reg;
mtdcr(ebccfga, xbcfg);
mtdcr(ebccfgd, 0xb8400000);
/*
* 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, 0xfffff7ff); /* 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 */
/* 50MHz tmrclk */
out_8((u8 *) CFG_BCSR_BASE + 0x04, 0x00);
/* clear write protects */
out_8((u8 *) CFG_BCSR_BASE + 0x07, 0x00);
/* enable Ethernet */
out_8((u8 *) CFG_BCSR_BASE + 0x08, 0x00);
/* enable USB device */
out_8((u8 *) CFG_BCSR_BASE + 0x09, 0x20);
/* select Ethernet (and optionally IIC1) pins */
mfsdr(SDR0_PFC1, sdr0_pfc1);
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
SDR0_PFC1_SELECT_CONFIG_4;
#ifdef CONFIG_I2C_MULTI_BUS
sdr0_pfc1 |= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL);
#endif
mfsdr(SDR0_PFC2, sdr0_pfc2);
sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
SDR0_PFC2_SELECT_CONFIG_4;
mtsdr(SDR0_PFC2, sdr0_pfc2);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/* PCI arbiter enabled */
mfsdr(sdr_pci0, reg);
mtsdr(sdr_pci0, 0x80000000 | reg);
/* setup NAND FLASH */
mfsdr(SDR0_CUST0, sdr0_cust0);
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sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
SDR0_CUST0_NDFC_ENABLE |
SDR0_CUST0_NDFC_BW_8_BIT |
SDR0_CUST0_NDFC_ARE_MASK |
(0x80000000 >> (28 + CFG_NAND_CS));
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mtsdr(SDR0_CUST0, sdr0_cust0);
return 0;
}
int misc_init_r(void)
{
uint pbcr;
int size_val = 0;
u32 reg;
#ifdef CONFIG_440EPX
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
unsigned long sdr0_pfc1;
char *act = getenv("usbact");
#endif
/* Re-do flash sizing to get full correct info */
/* adjust flash start and offset */
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
mtdcr(ebccfga, pb3cr);
#else
mtdcr(ebccfga, pb0cr);
#endif
pbcr = mfdcr(ebccfgd);
size_val = ffs(gd->bd->bi_flashsize) - 21;
pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
mtdcr(ebccfga, pb3cr);
#else
mtdcr(ebccfga, pb0cr);
#endif
mtdcr(ebccfgd, pbcr);
/*
* Re-check to get correct base address
*/
flash_get_size(gd->bd->bi_flashstart, 0);
#ifdef CFG_ENV_IS_IN_FLASH
/* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
-CFG_MONITOR_LEN,
0xffffffff,
&flash_info[0]);
/* Env protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR_REDUND,
CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
&flash_info[0]);
#endif
/*
* USB suff...
*/
#ifdef CONFIG_440EPX
if (act == NULL || strcmp(act, "hostdev") == 0) {
/* SDR Setting */
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mfsdr(SDR0_PFC1, sdr0_pfc1);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
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mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
/*
* An 8-bit/60MHz interface is the only possible alternative
* when connecting the Device to the PHY
*/
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usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;
/*
* To enable the USB 2.0 Device function
* through the UTMI interface
*/
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usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION;
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sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL;
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mtsdr(SDR0_PFC1, sdr0_pfc1);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
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mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2H0CR, usb2h0cr);
/*clear resets*/
udelay (1000);
mtsdr(SDR0_SRST1, 0x00000000);
udelay (1000);
mtsdr(SDR0_SRST0, 0x00000000);
printf("USB: Host(int phy) Device(ext phy)\n");
} else if (strcmp(act, "dev") == 0) {
/*-------------------PATCH-------------------------------*/
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
udelay (1000);
mtsdr(SDR0_SRST1, 0x672c6000);
udelay (1000);
mtsdr(SDR0_SRST0, 0x00000080);
udelay (1000);
mtsdr(SDR0_SRST1, 0x60206000);
*(unsigned int *)(0xe0000350) = 0x00000001;
udelay (1000);
mtsdr(SDR0_SRST1, 0x60306000);
/*-------------------PATCH-------------------------------*/
/* SDR Setting */
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mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
mfsdr(SDR0_PFC1, sdr0_pfc1);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;
usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;
usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION;
sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;
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mtsdr(SDR0_USB2H0CR, usb2h0cr);
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/* clear resets */
udelay (1000);
mtsdr(SDR0_SRST1, 0x00000000);
udelay (1000);
mtsdr(SDR0_SRST0, 0x00000000);
printf("USB: Device(int phy)\n");
}
#endif /* CONFIG_440EPX */
mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
mtsdr(SDR0_SRST1, reg);
/*
* Clear PLB4A0_ACR[WRP]
* This fix will make the MAL burst disabling patch for the Linux
* EMAC driver obsolete.
*/
reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
mtdcr(plb4_acr, reg);
return 0;
}
int checkboard(void)
{
char *s = getenv("serial#");
u8 rev;
u8 val;
#ifdef CONFIG_440EPX
printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
#else
printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
#endif
rev = in_8((void *)(CFG_BCSR_BASE + 0));
val = in_8((void *)(CFG_BCSR_BASE + 5)) & CFG_BCSR5_PCI66EN;
printf(", Rev. %X, PCI=%d MHz", rev, val ? 66 : 33);
if (s != NULL) {
puts(", serial# ");
puts(s);
}
putc('\n');
return (0);
}
#if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
/*
* Assign interrupts to PCI devices.
*/
void sequoia_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIR2);
}
#endif
/*
* 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 addr;
/*
* Set priority for all PLB3 devices to 0.
* Set PLB3 arbiter to fair mode.
*/
mfsdr(sdr_amp1, addr);
mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb3_acr);
mtdcr(plb3_acr, addr | 0x80000000);
/*
* Set priority for all PLB4 devices to 0.
*/
mfsdr(sdr_amp0, addr);
mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
mtdcr(plb4_acr, addr);
/*
* Set Nebula PLB4 arbiter to fair mode.
*/
/* Segment0 */
addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
mtdcr(plb0_acr, addr);
/* Segment1 */
addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
mtdcr(plb1_acr, addr);
#ifdef CONFIG_PCI_PNP
hose->fixup_irq = sequoia_pci_fixup_irq;
#endif
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(CFG_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller *hose)
{
/*
* Set up Direct MMIO registers
*/
/*
* PowerPC440EPX PCI Master configuration.
* Map one 1Gig range of PLB/processor addresses to PCI memory space.
* PLB address 0xA0000000-0xDFFFFFFF
* ==> PCI address 0xA0000000-0xDFFFFFFF
* Use byte reversed out routines to handle endianess.
* Make this region non-prefetchable.
*/
out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute */
/* - disabled b4 setting */
out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, */
/* and enable region */
out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute */
/* - disabled b4 setting */
out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, */
/* and enable region */
out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
/*
* Set up Configuration registers
*/
/* Program the board's subsystem id/vendor id */
pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
CFG_PCI_SUBSYS_VENDORID);
pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
/* Configure command register as bus master */
pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
/* 240nS PCI clock */
pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
/* No error reporting */
pci_write_config_word(0, PCI_ERREN, 0);
pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
}
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
#if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
void pci_master_init(struct pci_controller *hose)
{
unsigned short temp_short;
/*
* Write the PowerPC440 EP PCI Configuration regs.
* Enable PowerPC440 EP to be a master on the PCI bus (PMM).
* Enable PowerPC440 EP to act as a PCI memory target (PTM).
*/
pci_read_config_word(0, PCI_COMMAND, &temp_short);
pci_write_config_word(0, PCI_COMMAND,
temp_short | PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY);
}
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
/*
* 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.
*/
#if defined(CONFIG_PCI)
int is_pci_host(struct pci_controller *hose)
{
/* Cactus is always configured as host. */
return (1);
}
#endif /* defined(CONFIG_PCI) */
#if defined(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 0; /* No hotkeys supported */
}
#endif /* CONFIG_POST */