source: svn/newcon3bcm2_21bu/rockford/bsp/bcm97552/no-os/src/sde/chip.s

/***************************************************************************
 *     Copyright (c) 2012-2011, Broadcom Corporation
 *     All Rights Reserved
 *     Confidential Property of Broadcom Corporation
 *
 *  THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE
 *  AGREEMENT  BETWEEN THE USER AND BROADCOM.  YOU HAVE NO RIGHT TO USE OR
 *  EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
 *
 * $brcm_Workfile: chip.s $
 * $brcm_Revision: Hydra_Software_Devel/2 $
 * $brcm_Date: 12/19/11 5:27p $
 *
 * Module Description:
 *
 * Revision History:
 *
 * $brcm_Log: /rockford/bsp/bcm97358/no-os/src/sde/chip.s $
 * 
 * Hydra_Software_Devel/2   12/19/11 5:27p jkim
 * SWCFE-690: Add support for 7552B0
 * 
 * Hydra_Software_Devel/1   4/28/11 1:39p jkim
 * SWCFE-507: Initial file
 * 
 * Hydra_Software_Devel/2   11/12/10 4:26p jkim
 * SWCFE-399: bring all blocks ot of reset
 * 
 * Hydra_Software_Devel/1   11/9/10 4:53p jkim
 * SWCFE-399: initial files
 * 
 * 
***************************************************************************/
#ifndef __ASSEMBLER__
#define __ASSEMBLER__
#endif
#include "bmips.h"
#include "chipcfg.h"
#include "bchp_common.h"
#include "bchp_sun_top_ctrl.h"
#include "bchp_sun_gisb_arb.h"

.text
/******************************************************************************
 * Function: do_chip_init
 * Arguments:   None
 * Returns:             v0
 * Description: 
 * Trashes:             
 *
 *      pseudo code:
 *      
 ******************************************************************************/
LEAF(do_chip_init)

        move    s0, ra

        /* Clear SW init signal to various blocks */
        li              t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_TOP_CTRL_SW_INIT_0_CLEAR)
        li              t1, 0xffffffff
        sw              t1, 0(t0)

        /* Clear SW init signal to various blocks */
        li              t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_TOP_CTRL_SW_INIT_1_CLEAR)
        li              t1, 0xffffffff
        sw              t1, 0(t0)

        /* masking gisb timer */
        li      t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_GISB_ARB_TIMER)
        li      t1, 0x0000ffff
        sw      t1, 0(t0)

        /* masking gisb req */
    li          t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_GISB_ARB_REQ_MASK)
        li      t1,0x00000000
        sw      t1,0(t0)

#if 0
     /* init the EBI/PCI bus parking */ 
        li      t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_PCI_GEN_PCI_CTRL)
        lw      t1,0(t0)
        or      t1, t1, BCHP_PCI_GEN_PCI_CTRL_ARB_PARK_ID_MASK
        sw      t1,0(t0)
#endif

        li      t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_TOP_CTRL_PIN_MUX_CTRL_13)
        /* Set ephy_link and activity led*/
        lw              t1, 0(t0)
        li              v0, ~BCHP_SUN_TOP_CTRL_PIN_MUX_CTRL_13_gpio_102_MASK
        and             t1, t1, v0
        li              v0, (0x00000006<<BCHP_SUN_TOP_CTRL_PIN_MUX_CTRL_13_gpio_102_SHIFT)
        or              t1, t1, v0
        sw              t1, 0(t0) 
                 
        lw              t1, 0(t0)
        li              v0, ~BCHP_SUN_TOP_CTRL_PIN_MUX_CTRL_13_gpio_105_MASK
        and             t1, t1, v0
        li              v0, (0x00000001<<BCHP_SUN_TOP_CTRL_PIN_MUX_CTRL_13_gpio_105_SHIFT)
        or              t1, t1, v0
        sw              t1, 0(t0)

        jr              s0
        nop
                
END(do_chip_init)

/******************************************************************************
 * Function: print_chip_details
 * Arguments:   None
 * Returns:             v0
 * Description: 
 * Trashes:             
 *
 *      pseudo code:
 *      
 ******************************************************************************/
LEAF(print_chip_details)

        move    s0, ra  
        
        
        li              a0, '\r'
        bal             _writeasm
        nop
        
        li              a0, '\n'
        bal             _writeasm
        nop
        
        li              a0, 'B'
        bal             _writeasm
        nop
        
        
        li              a0, 'C'
        bal             _writeasm
        nop
        
        
        li              a0, 'M'
        bal             _writeasm
        nop
        
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_TOP_CTRL_CHIP_FAMILY_ID)
        lw              a0, (v0)
        
        bal             uartout_hex32
        nop
        
        li              a0, '\r'
        bal             _writeasm
        nop
        
        li              a0, '\n'
        bal             _writeasm
        nop
        
        jr              s0
        nop

END(print_chip_details)
#if 0
LEAF(sata_init)
        /* must write this before writing to IMPL reg*/
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SATA_TOP_CTRL_BUS_CTRL)
        lw              t0, 0(v0)
        li              t1, 0x00010000
        or              t0, t0, t1
        sw              t0, 0(v0)

    /* Set correct port number and disable port multiplier support  for now  */
        /* masked # of port implementation */
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SATA_AHCI_GHC_HBA_CAP)
        lw              t0, 0(v0)
        li              t1, 0xfffdffe0
        and             t0, t0, t1
        or              t0, t0, 1
        sw              t0, 0(v0)

        /* Write port implement*/
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SATA_AHCI_GHC_Ports_Implemented)
        li              t0, 3
        sw              t0, 0(v0)

        /* Must clear after used */
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SATA_TOP_CTRL_BUS_CTRL)
        lw              t0, 0(v0)
        li              t1, 0xFFFEFFFF;
        and             t0, t0, t1
        sw              t0, 0(v0)

        /* wait until bit gets cleared */
1:
        li              v0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SATA_TOP_CTRL_BUS_CTRL)
        lw              t0, 0(v0)
        li              t1, 0x00010000
        and             t0, t0, t1
        bnez    t0, 1b
        nop

END(sata_init)
#endif