[J-u-boot.git] / cpu / mpc8260 / pci.c

/*
 * (C) Copyright 2003
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 *
 * 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>

#ifdef CONFIG_PCI

#include <pci.h>
#include <mpc8260.h>
#include <asm/m8260_pci.h>

/*
 *   Local->PCI map (from CPU)                             controlled by
 *   MPC826x master window
 *
 *   0x80000000 - 0xBFFFFFFF    CPU2PCI space              PCIBR0
 *   0xF4000000 - 0xF7FFFFFF    CPU2PCI space              PCIBR1
 *
 *   0x80000000 - 0x9FFFFFFF    0x80000000 - 0x9FFFFFFF   (Outbound ATU #1)
 *                              PCI Mem with prefetch
 *
 *   0xA0000000 - 0xBFFFFFFF    0xA0000000 - 0xBFFFFFFF   (Outbound ATU #2)
 *                              PCI Mem w/o  prefetch
 *
 *   0xF4000000 - 0xF7FFFFFF    0x00000000 - 0x03FFFFFF   (Outbound ATU #3)
 *                              32-bit PCI IO
 *
 *   PCI->Local map (from PCI)
 *   MPC826x slave window                                  controlled by
 *
 *   0x00000000 - 0x1FFFFFFF    0x00000000 - 0x1FFFFFFF   (Inbound ATU #1)
 *                              MPC826x local memory
 */

/*
 * Slave window that allows PCI masters to access MPC826x local memory.
 * This window is set up using the first set of Inbound ATU registers
 */

#ifndef CFG_PCI_SLV_MEM_LOCAL
#define PCI_SLV_MEM_LOCAL CFG_SDRAM_BASE		/* Local base */
#else
#define PCI_SLV_MEM_LOCAL CFG_PCI_SLV_MEM_LOCAL
#endif

#ifndef CFG_PCI_SLV_MEM_BUS
#define PCI_SLV_MEM_BUS 0x00000000		/* PCI base */
#else
#define PCI_SLV_MEM_BUS CFG_PCI_SLV_MEM_BUS
#endif

#ifndef CFG_PICMR0_MASK_ATTRIB
#define PICMR0_MASK_ATTRIB	(PICMR_MASK_512MB | PICMR_ENABLE | \
				 PICMR_PREFETCH_EN)
#else
#define PICMR0_MASK_ATTRIB CFG_PICMR0_MASK_ATTRIB
#endif

/*
 * These are the windows that allow the CPU to access PCI address space.
 * All three PCI master windows, which allow the CPU to access PCI
 * prefetch, non prefetch, and IO space (see below), must all fit within
 * these windows.
 */

/* PCIBR0 */
#ifndef CFG_PCI_MSTR0_LOCAL
#define PCI_MSTR0_LOCAL		0x80000000		/* Local base */
#else
#define PCI_MSTR0_LOCAL CFG_PCI_MSTR0_LOCAL
#endif

#ifndef CFG_PCIMSK0_MASK
#define PCIMSK0_MASK		PCIMSK_1GB		/* Size of window */
#else
#define PCIMSK0_MASK	CFG_PCIMSK0_MASK
#endif

/* PCIBR1 */
#ifndef CFG_PCI_MSTR1_LOCAL
#define PCI_MSTR1_LOCAL		0xF4000000		/* Local base */
#else
#define PCI_MSTR1_LOCAL		CFG_PCI_MSTR1_LOCAL
#endif

#ifndef CFG_PCIMSK1_MASK
#define  PCIMSK1_MASK		PCIMSK_64MB		/* Size of window */
#else
#define  PCIMSK1_MASK		CFG_PCIMSK1_MASK
#endif

/*
 * Master window that allows the CPU to access PCI Memory (prefetch).
 * This window will be setup with the first set of Outbound ATU registers
 * in the bridge.
 */

#ifndef CFG_PCI_MSTR_MEM_LOCAL
#define PCI_MSTR_MEM_LOCAL 0x80000000          /* Local base */
#else
#define PCI_MSTR_MEM_LOCAL CFG_PCI_MSTR_MEM_LOCAL
#endif

#ifndef CFG_PCI_MSTR_MEM_BUS
#define PCI_MSTR_MEM_BUS 0x80000000          /* PCI base   */
#else
#define PCI_MSTR_MEM_BUS CFG_PCI_MSTR_MEM_BUS
#endif

#ifndef CFG_CPU_PCI_MEM_START
#define CPU_PCI_MEM_START PCI_MSTR_MEM_LOCAL
#else
#define CPU_PCI_MEM_START CFG_CPU_PCI_MEM_START
#endif

#ifndef CFG_PCI_MSTR_MEM_SIZE
#define PCI_MSTR_MEM_SIZE 0x10000000          /* 256MB */
#else
#define PCI_MSTR_MEM_SIZE CFG_PCI_MSTR_MEM_SIZE
#endif

#ifndef CFG_POCMR0_MASK_ATTRIB
#define POCMR0_MASK_ATTRIB	(POCMR_MASK_256MB | POCMR_ENABLE | POCMR_PREFETCH_EN)
#else
#define POCMR0_MASK_ATTRIB CFG_POCMR0_MASK_ATTRIB
#endif

/*
 * Master window that allows the CPU to access PCI Memory (non-prefetch).
 * This window will be setup with the second set of Outbound ATU registers
 * in the bridge.
 */

#ifndef CFG_PCI_MSTR_MEMIO_LOCAL
#define PCI_MSTR_MEMIO_LOCAL 0x90000000          /* Local base */
#else
#define PCI_MSTR_MEMIO_LOCAL CFG_PCI_MSTR_MEMIO_LOCAL
#endif

#ifndef CFG_PCI_MSTR_MEMIO_BUS
#define PCI_MSTR_MEMIO_BUS 0x90000000          /* PCI base   */
#else
#define PCI_MSTR_MEMIO_BUS CFG_PCI_MSTR_MEMIO_BUS
#endif

#ifndef CFG_CPU_PCI_MEMIO_START
#define CPU_PCI_MEMIO_START PCI_MSTR_MEMIO_LOCAL
#else
#define CPU_PCI_MEMIO_START CFG_CPU_PCI_MEMIO_START
#endif

#ifndef CFG_PCI_MSTR_MEMIO_SIZE
#define PCI_MSTR_MEMIO_SIZE 0x10000000          /* 256 MB */
#else
#define PCI_MSTR_MEMIO_SIZE CFG_PCI_MSTR_MEMIO_SIZE
#endif

#ifndef CFG_POCMR1_MASK_ATTRIB
#define POCMR1_MASK_ATTRIB      (POCMR_MASK_512MB | POCMR_ENABLE)
#else
#define POCMR1_MASK_ATTRIB CFG_POCMR1_MASK_ATTRIB
#endif

/*
 * Master window that allows the CPU to access PCI IO space.
 * This window will be setup with the third set of Outbound ATU registers
 * in the bridge.
 */

#ifndef CFG_PCI_MSTR_IO_LOCAL
#define PCI_MSTR_IO_LOCAL 0xA0000000          /* Local base */
#else
#define PCI_MSTR_IO_LOCAL CFG_PCI_MSTR_IO_LOCAL
#endif

#ifndef CFG_PCI_MSTR_IO_BUS
#define PCI_MSTR_IO_BUS 0xA0000000          /* PCI base   */
#else
#define PCI_MSTR_IO_BUS CFG_PCI_MSTR_IO_BUS
#endif

#ifndef CFG_CPU_PCI_IO_START
#define CPU_PCI_IO_START PCI_MSTR_IO_LOCAL
#else
#define CPU_PCI_IO_START CFG_CPU_PCI_IO_START
#endif

#ifndef CFG_PCI_MSTR_IO_SIZE
#define PCI_MSTR_IO_SIZE 0x10000000          /* 256MB */
#else
#define PCI_MSTR_IO_SIZE CFG_PCI_MSTR_IO_SIZE
#endif

#ifndef CFG_POCMR2_MASK_ATTRIB
#define POCMR2_MASK_ATTRIB      (POCMR_MASK_256MB | POCMR_ENABLE | POCMR_PCI_IO)
#else
#define POCMR2_MASK_ATTRIB CFG_POCMR2_MASK_ATTRIB
#endif

/* PCI bus configuration registers.
 */

#define PCI_CLASS_BRIDGE_CTLR	0x06


static inline void  pci_outl(u32 addr, u32 data)
{
    *(volatile u32 *) addr = cpu_to_le32(data);
}

void pci_mpc8250_init(struct pci_controller *hose)
{
#ifdef CONFIG_MPC8266ADS
    DECLARE_GLOBAL_DATA_PTR;
#endif
    u16 tempShort;
    u32 immr_addr = CFG_IMMR;
    volatile immap_t *immap = (immap_t *) CFG_IMMR;
    pci_dev_t host_devno = PCI_BDF(0, 0, 0);

    pci_setup_indirect(hose, CFG_IMMR + PCI_CFG_ADDR_REG,
				 CFG_IMMR + PCI_CFG_DATA_REG);

    /*
     * Setting required to enable local bus for PCI (SIUMCR [LBPC]).
     */
#ifdef CONFIG_MPC8266ADS
    immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11)
				   | SIUMCR_LBPC01;
#else
    /*
     * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]),
     * and local bus for PCI (SIUMCR [LBPC]).
     */
    immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr &
						  ~SIUMCR_LBPC11 &
						~SIUMCR_CS10PC11 &
						 ~SIUMCR_LBPC11) |
				   SIUMCR_LBPC01 |
				   SIUMCR_CS10PC01 |
				   SIUMCR_LBPC01;
#endif

    /* Make PCI lowest priority */
    /* Each 4 bits is a device bus request  and the MS 4bits
       is highest priority */
    /* Bus               4bit value
	   ---               ----------
       CPM high          0b0000
       CPM middle        0b0001
	   CPM low           0b0010
       PCI reguest       0b0011
       Reserved          0b0100
       Reserved          0b0101
       Internal Core     0b0110
       External Master 1 0b0111
       External Master 2 0b1000
       External Master 3 0b1001
       The rest are reserved */
    immap->im_siu_conf.sc_ppc_alrh = 0x61207893;

    /* Park bus on core while modifying PCI Bus accesses */
    immap->im_siu_conf.sc_ppc_acr = 0x6;

    /*
     * Set up master windows that allow the CPU to access PCI space. These
     * windows are set up using the two SIU PCIBR registers.
     */
    *(volatile unsigned long*)(immr_addr + M8265_PCIMSK0) = PCIMSK0_MASK;
    *(volatile unsigned long*)(immr_addr + M8265_PCIBR0) =
	    PCI_MSTR0_LOCAL | PCIBR_ENABLE;

#ifdef CONFIG_MPC8266ADS
    *(volatile unsigned long*)(immr_addr + M8265_PCIMSK1) = PCIMSK1_MASK;
    *(volatile unsigned long*)(immr_addr + M8265_PCIBR1) =
	    PCI_MSTR1_LOCAL | PCIBR_ENABLE;
#endif

    /* Release PCI RST (by default the PCI RST signal is held low)  */
    pci_outl (immr_addr | PCI_GCR_REG, PCIGCR_PCI_BUS_EN);

    /* give it some time */
    {
#ifdef CONFIG_MPC8266ADS
		/* Give the PCI cards more time to initialize before query
			This might be good for other boards also
		*/
	int i;
	for (i = 0; i < 1000; ++i)
#endif
	    udelay(1000);
    }

    /*
     * Set up master window that allows the CPU to access PCI Memory (prefetch)
     * space. This window is set up using the first set of Outbound ATU registers.
     */
    pci_outl (immr_addr | POTAR_REG0, PCI_MSTR_MEM_BUS >> 12);      /* PCI base */
    pci_outl (immr_addr | POBAR_REG0, PCI_MSTR_MEM_LOCAL >> 12);    /* Local base */
    pci_outl (immr_addr | POCMR_REG0, POCMR0_MASK_ATTRIB);    /* Size & attribute */

    /*
     * Set up master window that allows the CPU to access PCI Memory (non-prefetch)
     * space. This window is set up using the second set of Outbound ATU registers.
     */
    pci_outl (immr_addr | POTAR_REG1, PCI_MSTR_MEMIO_BUS >> 12);    /* PCI base */
    pci_outl (immr_addr | POBAR_REG1, PCI_MSTR_MEMIO_LOCAL >> 12);  /* Local base */
    pci_outl (immr_addr | POCMR_REG1, POCMR1_MASK_ATTRIB);    /* Size & attribute */

    /*
     * Set up master window that allows the CPU to access PCI IO space. This window
     * is set up using the third set of Outbound ATU registers.
     */
    pci_outl (immr_addr | POTAR_REG2, PCI_MSTR_IO_BUS >> 12);       /* PCI base */
    pci_outl (immr_addr | POBAR_REG2, PCI_MSTR_IO_LOCAL >> 12);     /* Local base */
    pci_outl (immr_addr | POCMR_REG2, POCMR2_MASK_ATTRIB);    /* Size & attribute */

    /*
     * Set up slave window that allows PCI masters to access MPC826x local memory.
     * This window is set up using the first set of Inbound ATU registers
     */
    pci_outl (immr_addr | PITAR_REG0, PCI_SLV_MEM_LOCAL >> 12);     /* Local base */
    pci_outl (immr_addr | PIBAR_REG0, PCI_SLV_MEM_BUS >> 12);       /* PCI base */
    pci_outl (immr_addr | PICMR_REG0, PICMR0_MASK_ATTRIB);    /* Size & attribute */

     /* See above for description - puts PCI request as highest priority */
    immap->im_siu_conf.sc_ppc_alrh = 0x03124567;

    /* Park the bus on the PCI */
    immap->im_siu_conf.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI;

    /* Host mode - specify the bridge as a host-PCI bridge */

    pci_hose_write_config_byte(hose, host_devno, PCI_CLASS_CODE,
				   PCI_CLASS_BRIDGE_CTLR);

    /* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */
    pci_hose_read_config_word(hose, host_devno, PCI_COMMAND, &tempShort);
    pci_hose_write_config_word(hose, host_devno, PCI_COMMAND,
			 tempShort | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);

#ifdef CONFIG_MPC8266ADS
	/* do some bridge init, should be done on all 8260 based bridges */
	pci_hose_write_config_byte(hose, host_devno, PCI_CACHE_LINE_SIZE, 0x08);
	pci_hose_write_config_byte(hose, host_devno, PCI_LATENCY_TIMER, 0xF8);
#endif

    hose->first_busno = 0;
    hose->last_busno = 0xff;

    /* System memory space */
#ifdef CONFIG_MPC8266ADS
    pci_set_region(hose->regions + 0,
		       PCI_SLV_MEM_BUS,
		       PCI_SLV_MEM_LOCAL,
		       gd->ram_size,
		       PCI_REGION_MEM | PCI_REGION_MEMORY);
#else
    pci_set_region(hose->regions + 0,
		       CFG_SDRAM_BASE,
		       CFG_SDRAM_BASE,
		       0x4000000,
		       PCI_REGION_MEM | PCI_REGION_MEMORY);
#endif

    /* PCI memory space */
#ifdef CONFIG_MPC8266ADS
    pci_set_region(hose->regions + 1,
		       PCI_MSTR_MEMIO_BUS,
		       PCI_MSTR_MEMIO_LOCAL,
		       PCI_MSTR_MEMIO_SIZE,
		       PCI_REGION_MEM);
#else
    pci_set_region(hose->regions + 1,
		       PCI_MSTR_MEM_BUS,
		       PCI_MSTR_MEM_LOCAL,
		       PCI_MSTR_MEM_SIZE,
		       PCI_REGION_MEM);
#endif

    /* PCI I/O space */
    pci_set_region(hose->regions + 2,
		       PCI_MSTR_IO_BUS,
		       PCI_MSTR_IO_LOCAL,
		       PCI_MSTR_IO_SIZE,
		       PCI_REGION_IO);

    hose->region_count = 3;

    pci_register_hose(hose);

    hose->last_busno = pci_hose_scan(hose);
}

#endif	/* CONFIG_PCI */
Commit	Line	Data
4d75a504 WD	1	/*
	2	* (C) Copyright 2003
	3	* Wolfgang Denk, DENX Software Engineering, [email protected].
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25
	26	#ifdef CONFIG_PCI
	27
	28	#include <pci.h>
5d232d0e	29	#include <mpc8260.h>
4d75a504 WD	30	#include <asm/m8260_pci.h>
	31
	32	/*
	33	* Local->PCI map (from CPU) controlled by
	34	* MPC826x master window
	35	*
5d232d0e WD	36	* 0x80000000 - 0xBFFFFFFF CPU2PCI space PCIBR0
5d232d0e WD	37	* 0xF4000000 - 0xF7FFFFFF CPU2PCI space PCIBR1
8bde7f77	38	*
5d232d0e WD	39	* 0x80000000 - 0x9FFFFFFF 0x80000000 - 0x9FFFFFFF (Outbound ATU #1)
	40	* PCI Mem with prefetch
	41	*
	42	* 0xA0000000 - 0xBFFFFFFF 0xA0000000 - 0xBFFFFFFF (Outbound ATU #2)
	43	* PCI Mem w/o prefetch
	44	*
	45	* 0xF4000000 - 0xF7FFFFFF 0x00000000 - 0x03FFFFFF (Outbound ATU #3)
	46	* 32-bit PCI IO
8bde7f77	47	*
4d75a504 WD	48	* PCI->Local map (from PCI)
	49	* MPC826x slave window controlled by
	50	*
5d232d0e WD	51	* 0x00000000 - 0x1FFFFFFF 0x00000000 - 0x1FFFFFFF (Inbound ATU #1)
5d232d0e WD	52	* MPC826x local memory
4d75a504 WD	53	*/
4d75a504 WD	54
8bde7f77 WD	55	/*
8bde7f77 WD	56	* Slave window that allows PCI masters to access MPC826x local memory.
4d75a504 WD	57	* This window is set up using the first set of Inbound ATU registers
	58	*/
	59
8bde7f77 WD	60	#ifndef CFG_PCI_SLV_MEM_LOCAL
	61	#define PCI_SLV_MEM_LOCAL CFG_SDRAM_BASE /* Local base */
	62	#else
	63	#define PCI_SLV_MEM_LOCAL CFG_PCI_SLV_MEM_LOCAL
5d232d0e WD	64	#endif
	65
	66	#ifndef CFG_PCI_SLV_MEM_BUS
	67	#define PCI_SLV_MEM_BUS 0x00000000 /* PCI base */
	68	#else
	69	#define PCI_SLV_MEM_BUS CFG_PCI_SLV_MEM_BUS
	70	#endif
	71
	72	#ifndef CFG_PICMR0_MASK_ATTRIB
4d75a504	73	#define PICMR0_MASK_ATTRIB (PICMR_MASK_512MB \| PICMR_ENABLE \| \
8bde7f77	74	PICMR_PREFETCH_EN)
5d232d0e WD	75	#else
	76	#define PICMR0_MASK_ATTRIB CFG_PICMR0_MASK_ATTRIB
	77	#endif
4d75a504	78
8bde7f77	79	/*
5d232d0e	80	* These are the windows that allow the CPU to access PCI address space.
8bde7f77 WD	81	* All three PCI master windows, which allow the CPU to access PCI
8bde7f77 WD	82	* prefetch, non prefetch, and IO space (see below), must all fit within
5d232d0e	83	* these windows.
4d75a504 WD	84	*/
4d75a504 WD	85
5d232d0e WD	86	/* PCIBR0 */
5d232d0e WD	87	#ifndef CFG_PCI_MSTR0_LOCAL
8bde7f77 WD	88	#define PCI_MSTR0_LOCAL 0x80000000 /* Local base */
8bde7f77 WD	89	#else
5d232d0e WD	90	#define PCI_MSTR0_LOCAL CFG_PCI_MSTR0_LOCAL
	91	#endif
	92
	93	#ifndef CFG_PCIMSK0_MASK
4d75a504	94	#define PCIMSK0_MASK PCIMSK_1GB /* Size of window */
5d232d0e WD	95	#else
	96	#define PCIMSK0_MASK CFG_PCIMSK0_MASK
	97	#endif
	98
	99	/* PCIBR1 */
	100	#ifndef CFG_PCI_MSTR1_LOCAL
8bde7f77 WD	101	#define PCI_MSTR1_LOCAL 0xF4000000 /* Local base */
	102	#else
	103	#define PCI_MSTR1_LOCAL CFG_PCI_MSTR1_LOCAL
5d232d0e WD	104	#endif
	105
	106	#ifndef CFG_PCIMSK1_MASK
	107	#define PCIMSK1_MASK PCIMSK_64MB /* Size of window */
	108	#else
	109	#define PCIMSK1_MASK CFG_PCIMSK1_MASK
	110	#endif
4d75a504	111
8bde7f77	112	/*
4d75a504 WD	113	* Master window that allows the CPU to access PCI Memory (prefetch).
	114	* This window will be setup with the first set of Outbound ATU registers
	115	* in the bridge.
	116	*/
	117
5d232d0e WD	118	#ifndef CFG_PCI_MSTR_MEM_LOCAL
	119	#define PCI_MSTR_MEM_LOCAL 0x80000000 /* Local base */
	120	#else
	121	#define PCI_MSTR_MEM_LOCAL CFG_PCI_MSTR_MEM_LOCAL
	122	#endif
	123
	124	#ifndef CFG_PCI_MSTR_MEM_BUS
	125	#define PCI_MSTR_MEM_BUS 0x80000000 /* PCI base */
	126	#else
	127	#define PCI_MSTR_MEM_BUS CFG_PCI_MSTR_MEM_BUS
	128	#endif
	129
	130	#ifndef CFG_CPU_PCI_MEM_START
	131	#define CPU_PCI_MEM_START PCI_MSTR_MEM_LOCAL
	132	#else
	133	#define CPU_PCI_MEM_START CFG_CPU_PCI_MEM_START
	134	#endif
	135
	136	#ifndef CFG_PCI_MSTR_MEM_SIZE
	137	#define PCI_MSTR_MEM_SIZE 0x10000000 /* 256MB */
	138	#else
	139	#define PCI_MSTR_MEM_SIZE CFG_PCI_MSTR_MEM_SIZE
	140	#endif
	141
	142	#ifndef CFG_POCMR0_MASK_ATTRIB
4d75a504	143	#define POCMR0_MASK_ATTRIB (POCMR_MASK_256MB \| POCMR_ENABLE \| POCMR_PREFETCH_EN)
5d232d0e WD	144	#else
	145	#define POCMR0_MASK_ATTRIB CFG_POCMR0_MASK_ATTRIB
	146	#endif
4d75a504	147
8bde7f77	148	/*
4d75a504 WD	149	* Master window that allows the CPU to access PCI Memory (non-prefetch).
	150	* This window will be setup with the second set of Outbound ATU registers
	151	* in the bridge.
	152	*/
	153
8bde7f77 WD	154	#ifndef CFG_PCI_MSTR_MEMIO_LOCAL
	155	#define PCI_MSTR_MEMIO_LOCAL 0x90000000 /* Local base */
	156	#else
	157	#define PCI_MSTR_MEMIO_LOCAL CFG_PCI_MSTR_MEMIO_LOCAL
5d232d0e WD	158	#endif
5d232d0e WD	159
8bde7f77 WD	160	#ifndef CFG_PCI_MSTR_MEMIO_BUS
	161	#define PCI_MSTR_MEMIO_BUS 0x90000000 /* PCI base */
	162	#else
	163	#define PCI_MSTR_MEMIO_BUS CFG_PCI_MSTR_MEMIO_BUS
5d232d0e WD	164	#endif
5d232d0e WD	165
8bde7f77 WD	166	#ifndef CFG_CPU_PCI_MEMIO_START
	167	#define CPU_PCI_MEMIO_START PCI_MSTR_MEMIO_LOCAL
	168	#else
	169	#define CPU_PCI_MEMIO_START CFG_CPU_PCI_MEMIO_START
5d232d0e WD	170	#endif
5d232d0e WD	171
8bde7f77 WD	172	#ifndef CFG_PCI_MSTR_MEMIO_SIZE
	173	#define PCI_MSTR_MEMIO_SIZE 0x10000000 /* 256 MB */
	174	#else
	175	#define PCI_MSTR_MEMIO_SIZE CFG_PCI_MSTR_MEMIO_SIZE
5d232d0e WD	176	#endif
	177
	178	#ifndef CFG_POCMR1_MASK_ATTRIB
	179	#define POCMR1_MASK_ATTRIB (POCMR_MASK_512MB \| POCMR_ENABLE)
	180	#else
	181	#define POCMR1_MASK_ATTRIB CFG_POCMR1_MASK_ATTRIB
	182	#endif
4d75a504	183
8bde7f77	184	/*
4d75a504 WD	185	* Master window that allows the CPU to access PCI IO space.
	186	* This window will be setup with the third set of Outbound ATU registers
	187	* in the bridge.
	188	*/
	189
8bde7f77 WD	190	#ifndef CFG_PCI_MSTR_IO_LOCAL
	191	#define PCI_MSTR_IO_LOCAL 0xA0000000 /* Local base */
	192	#else
	193	#define PCI_MSTR_IO_LOCAL CFG_PCI_MSTR_IO_LOCAL
5d232d0e WD	194	#endif
5d232d0e WD	195
8bde7f77 WD	196	#ifndef CFG_PCI_MSTR_IO_BUS
	197	#define PCI_MSTR_IO_BUS 0xA0000000 /* PCI base */
	198	#else
	199	#define PCI_MSTR_IO_BUS CFG_PCI_MSTR_IO_BUS
5d232d0e WD	200	#endif
5d232d0e WD	201
8bde7f77 WD	202	#ifndef CFG_CPU_PCI_IO_START
	203	#define CPU_PCI_IO_START PCI_MSTR_IO_LOCAL
	204	#else
	205	#define CPU_PCI_IO_START CFG_CPU_PCI_IO_START
5d232d0e WD	206	#endif
5d232d0e WD	207
8bde7f77 WD	208	#ifndef CFG_PCI_MSTR_IO_SIZE
	209	#define PCI_MSTR_IO_SIZE 0x10000000 /* 256MB */
	210	#else
	211	#define PCI_MSTR_IO_SIZE CFG_PCI_MSTR_IO_SIZE
66fd3d1c	212	#endif
5d232d0e WD	213
5d232d0e WD	214	#ifndef CFG_POCMR2_MASK_ATTRIB
4d75a504	215	#define POCMR2_MASK_ATTRIB (POCMR_MASK_256MB \| POCMR_ENABLE \| POCMR_PCI_IO)
5d232d0e WD	216	#else
	217	#define POCMR2_MASK_ATTRIB CFG_POCMR2_MASK_ATTRIB
	218	#endif
4d75a504 WD	219
	220	/* PCI bus configuration registers.
	221	*/
	222
	223	#define PCI_CLASS_BRIDGE_CTLR 0x06
	224
	225
	226	static inline void pci_outl(u32 addr, u32 data)
	227	{
	228	(volatile u32 ) addr = cpu_to_le32(data);
	229	}
	230
	231	void pci_mpc8250_init(struct pci_controller *hose)
	232	{
5d232d0e WD	233	#ifdef CONFIG_MPC8266ADS
	234	DECLARE_GLOBAL_DATA_PTR;
	235	#endif
4d75a504 WD	236	u16 tempShort;
	237	u32 immr_addr = CFG_IMMR;
	238	volatile immap_t immap = (immap_t ) CFG_IMMR;
	239	pci_dev_t host_devno = PCI_BDF(0, 0, 0);
	240
	241	pci_setup_indirect(hose, CFG_IMMR + PCI_CFG_ADDR_REG,
8bde7f77	242	CFG_IMMR + PCI_CFG_DATA_REG);
4d75a504	243
5d232d0e WD	244	/*
	245	* Setting required to enable local bus for PCI (SIUMCR [LBPC]).
	246	*/
	247	#ifdef CONFIG_MPC8266ADS
	248	immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11)
	249	\| SIUMCR_LBPC01;
	250	#else
8bde7f77 WD	251	/*
8bde7f77 WD	252	* Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]),
4d75a504 WD	253	* and local bus for PCI (SIUMCR [LBPC]).
4d75a504 WD	254	*/
8bde7f77 WD	255	immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr &
	256	~SIUMCR_LBPC11 &
	257	~SIUMCR_CS10PC11 &
15ef8a5d	258	~SIUMCR_LBPC11) \|
8bde7f77 WD	259	SIUMCR_LBPC01 \|
8bde7f77 WD	260	SIUMCR_CS10PC01 \|
15ef8a5d	261	SIUMCR_LBPC01;
5d232d0e	262	#endif
4d75a504 WD	263
4d75a504 WD	264	/* Make PCI lowest priority */
8bde7f77	265	/* Each 4 bits is a device bus request and the MS 4bits
4d75a504	266	is highest priority */
8bde7f77	267	/* Bus 4bit value
4d75a504 WD	268	--- ----------
	269	CPM high 0b0000
	270	CPM middle 0b0001
	271	CPM low 0b0010
	272	PCI reguest 0b0011
	273	Reserved 0b0100
	274	Reserved 0b0101
	275	Internal Core 0b0110
	276	External Master 1 0b0111
	277	External Master 2 0b1000
	278	External Master 3 0b1001
	279	The rest are reserved */
	280	immap->im_siu_conf.sc_ppc_alrh = 0x61207893;
	281
	282	/* Park bus on core while modifying PCI Bus accesses */
	283	immap->im_siu_conf.sc_ppc_acr = 0x6;
	284
8bde7f77 WD	285	/*
8bde7f77 WD	286	* Set up master windows that allow the CPU to access PCI space. These
5d232d0e	287	* windows are set up using the two SIU PCIBR registers.
4d75a504 WD	288	*/
	289	(volatile unsigned long)(immr_addr + M8265_PCIMSK0) = PCIMSK0_MASK;
	290	(volatile unsigned long)(immr_addr + M8265_PCIBR0) =
5d232d0e WD	291	PCI_MSTR0_LOCAL \| PCIBR_ENABLE;
	292
	293	#ifdef CONFIG_MPC8266ADS
	294	(volatile unsigned long)(immr_addr + M8265_PCIMSK1) = PCIMSK1_MASK;
	295	(volatile unsigned long)(immr_addr + M8265_PCIBR1) =
	296	PCI_MSTR1_LOCAL \| PCIBR_ENABLE;
8bde7f77	297	#endif
4d75a504 WD	298
	299	/* Release PCI RST (by default the PCI RST signal is held low) */
	300	pci_outl (immr_addr \| PCI_GCR_REG, PCIGCR_PCI_BUS_EN);
	301
	302	/* give it some time */
5d232d0e	303	{
8bde7f77 WD	304	#ifdef CONFIG_MPC8266ADS
8bde7f77 WD	305	/* Give the PCI cards more time to initialize before query
5d232d0e WD	306	This might be good for other boards also
5d232d0e WD	307	*/
8bde7f77 WD	308	int i;
8bde7f77 WD	309	for (i = 0; i < 1000; ++i)
5d232d0e	310	#endif
8bde7f77	311	udelay(1000);
5d232d0e	312	}
4d75a504	313
8bde7f77 WD	314	/*
8bde7f77 WD	315	* Set up master window that allows the CPU to access PCI Memory (prefetch)
4d75a504 WD	316	* space. This window is set up using the first set of Outbound ATU registers.
	317	*/
	318	pci_outl (immr_addr \| POTAR_REG0, PCI_MSTR_MEM_BUS >> 12); /* PCI base */
	319	pci_outl (immr_addr \| POBAR_REG0, PCI_MSTR_MEM_LOCAL >> 12); /* Local base */
	320	pci_outl (immr_addr \| POCMR_REG0, POCMR0_MASK_ATTRIB); /* Size & attribute */
	321
8bde7f77 WD	322	/*
8bde7f77 WD	323	* Set up master window that allows the CPU to access PCI Memory (non-prefetch)
4d75a504 WD	324	* space. This window is set up using the second set of Outbound ATU registers.
	325	*/
	326	pci_outl (immr_addr \| POTAR_REG1, PCI_MSTR_MEMIO_BUS >> 12); /* PCI base */
	327	pci_outl (immr_addr \| POBAR_REG1, PCI_MSTR_MEMIO_LOCAL >> 12); /* Local base */
	328	pci_outl (immr_addr \| POCMR_REG1, POCMR1_MASK_ATTRIB); /* Size & attribute */
8bde7f77 WD	329
8bde7f77 WD	330	/*
4d75a504 WD	331	* Set up master window that allows the CPU to access PCI IO space. This window
	332	* is set up using the third set of Outbound ATU registers.
	333	*/
	334	pci_outl (immr_addr \| POTAR_REG2, PCI_MSTR_IO_BUS >> 12); /* PCI base */
	335	pci_outl (immr_addr \| POBAR_REG2, PCI_MSTR_IO_LOCAL >> 12); /* Local base */
	336	pci_outl (immr_addr \| POCMR_REG2, POCMR2_MASK_ATTRIB); /* Size & attribute */
	337
8bde7f77 WD	338	/*
8bde7f77 WD	339	* Set up slave window that allows PCI masters to access MPC826x local memory.
4d75a504 WD	340	* This window is set up using the first set of Inbound ATU registers
	341	*/
	342	pci_outl (immr_addr \| PITAR_REG0, PCI_SLV_MEM_LOCAL >> 12); /* Local base */
	343	pci_outl (immr_addr \| PIBAR_REG0, PCI_SLV_MEM_BUS >> 12); /* PCI base */
	344	pci_outl (immr_addr \| PICMR_REG0, PICMR0_MASK_ATTRIB); /* Size & attribute */
	345
	346	/* See above for description - puts PCI request as highest priority */
	347	immap->im_siu_conf.sc_ppc_alrh = 0x03124567;
	348
	349	/* Park the bus on the PCI */
	350	immap->im_siu_conf.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI;
	351
	352	/* Host mode - specify the bridge as a host-PCI bridge */
	353
	354	pci_hose_write_config_byte(hose, host_devno, PCI_CLASS_CODE,
8bde7f77	355	PCI_CLASS_BRIDGE_CTLR);
4d75a504 WD	356
	357	/* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */
	358	pci_hose_read_config_word(hose, host_devno, PCI_COMMAND, &tempShort);
	359	pci_hose_write_config_word(hose, host_devno, PCI_COMMAND,
8bde7f77	360	tempShort \| PCI_COMMAND_MASTER \| PCI_COMMAND_MEMORY);
4d75a504	361
7a8e9bed WD	362	#ifdef CONFIG_MPC8266ADS
	363	/* do some bridge init, should be done on all 8260 based bridges */
	364	pci_hose_write_config_byte(hose, host_devno, PCI_CACHE_LINE_SIZE, 0x08);
	365	pci_hose_write_config_byte(hose, host_devno, PCI_LATENCY_TIMER, 0xF8);
8bde7f77	366	#endif
7a8e9bed	367
4d75a504 WD	368	hose->first_busno = 0;
	369	hose->last_busno = 0xff;
	370
	371	/* System memory space */
5d232d0e WD	372	#ifdef CONFIG_MPC8266ADS
	373	pci_set_region(hose->regions + 0,
	374	PCI_SLV_MEM_BUS,
	375	PCI_SLV_MEM_LOCAL,
	376	gd->ram_size,
	377	PCI_REGION_MEM \| PCI_REGION_MEMORY);
	378	#else
4d75a504 WD	379	pci_set_region(hose->regions + 0,
	380	CFG_SDRAM_BASE,
	381	CFG_SDRAM_BASE,
	382	0x4000000,
	383	PCI_REGION_MEM \| PCI_REGION_MEMORY);
5d232d0e	384	#endif
4d75a504 WD	385
4d75a504 WD	386	/* PCI memory space */
5d232d0e	387	#ifdef CONFIG_MPC8266ADS
7a8e9bed WD	388	pci_set_region(hose->regions + 1,
	389	PCI_MSTR_MEMIO_BUS,
	390	PCI_MSTR_MEMIO_LOCAL,
	391	PCI_MSTR_MEMIO_SIZE,
	392	PCI_REGION_MEM);
5d232d0e	393	#else
4d75a504 WD	394	pci_set_region(hose->regions + 1,
	395	PCI_MSTR_MEM_BUS,
	396	PCI_MSTR_MEM_LOCAL,
	397	PCI_MSTR_MEM_SIZE,
	398	PCI_REGION_MEM);
5d232d0e	399	#endif
4d75a504 WD	400
	401	/* PCI I/O space */
	402	pci_set_region(hose->regions + 2,
	403	PCI_MSTR_IO_BUS,
	404	PCI_MSTR_IO_LOCAL,
	405	PCI_MSTR_IO_SIZE,
	406	PCI_REGION_IO);
	407
	408	hose->region_count = 3;
	409
	410	pci_register_hose(hose);
	411
	412	hose->last_busno = pci_hose_scan(hose);
	413	}
	414
	415	#endif /* CONFIG_PCI */