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/*
* Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
*
* (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
*
* 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 <asm/arch/imx-regs.h>
#include <generated/asm-offsets.h>
#include <asm/macro.h>
/*
* AIPS setup - Only setup MPROTx registers.
* The PACR default values are good.
*
* Default argument values:
* - MPR: Set all MPROTx to be non-bufferable, trusted for R/W, not forced to
* user-mode.
* - OPACR: Clear the on and off peripheral modules Supervisor Protect bit for
* SDMA to access them.
*/
.macro init_aips mpr=0x77777777, opacr=0x00000000
ldr r0, =AIPS1_BASE_ADDR
ldr r1, =\mpr
str r1, [r0, #AIPS_MPR_0_7]
str r1, [r0, #AIPS_MPR_8_15]
ldr r2, =AIPS2_BASE_ADDR
str r1, [r2, #AIPS_MPR_0_7]
str r1, [r2, #AIPS_MPR_8_15]
/* Did not change the AIPS control registers access type. */
ldr r1, =\opacr
str r1, [r0, #AIPS_OPACR_0_7]
str r1, [r0, #AIPS_OPACR_8_15]
str r1, [r0, #AIPS_OPACR_16_23]
str r1, [r0, #AIPS_OPACR_24_31]
str r1, [r0, #AIPS_OPACR_32_39]
str r1, [r2, #AIPS_OPACR_0_7]
str r1, [r2, #AIPS_OPACR_8_15]
str r1, [r2, #AIPS_OPACR_16_23]
str r1, [r2, #AIPS_OPACR_24_31]
str r1, [r2, #AIPS_OPACR_32_39]
.endm
/*
* MAX (Multi-Layer AHB Crossbar Switch) setup
*
* Default argument values:
* - MPR: priority is M4 > M2 > M3 > M5 > M0 > M1
* - SGPCR: always park on last master
* - MGPCR: restore default values
*/
.macro init_max mpr=0x00302154, sgpcr=0x00000010, mgpcr=0x00000000
ldr r0, =MAX_BASE_ADDR
ldr r1, =\mpr
str r1, [r0, #MAX_MPR0] /* for S0 */
str r1, [r0, #MAX_MPR1] /* for S1 */
str r1, [r0, #MAX_MPR2] /* for S2 */
str r1, [r0, #MAX_MPR3] /* for S3 */
str r1, [r0, #MAX_MPR4] /* for S4 */
ldr r1, =\sgpcr
str r1, [r0, #MAX_SGPCR0] /* for S0 */
str r1, [r0, #MAX_SGPCR1] /* for S1 */
str r1, [r0, #MAX_SGPCR2] /* for S2 */
str r1, [r0, #MAX_SGPCR3] /* for S3 */
str r1, [r0, #MAX_SGPCR4] /* for S4 */
ldr r1, =\mgpcr
str r1, [r0, #MAX_MGPCR0] /* for M0 */
str r1, [r0, #MAX_MGPCR1] /* for M1 */
str r1, [r0, #MAX_MGPCR2] /* for M2 */
str r1, [r0, #MAX_MGPCR3] /* for M3 */
str r1, [r0, #MAX_MGPCR4] /* for M4 */
str r1, [r0, #MAX_MGPCR5] /* for M5 */
.endm
/*
* M3IF setup
*
* Default argument values:
* - CTL:
* MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
* MRRP[1] = L2CC1 not on priority list (0 << 1) = 0x00000000
* MRRP[2] = MBX not on priority list (0 << 2) = 0x00000000
* MRRP[3] = MAX1 not on priority list (0 << 3) = 0x00000000
* MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000
* MRRP[5] = MPEG4 not on priority list (0 << 5) = 0x00000000
* MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
* MRRP[7] = IPU2 not on priority list (0 << 7) = 0x00000000
* ------------
* 0x00000040
*/
.macro init_m3if ctl=0x00000040
/* M3IF Control Register (M3IFCTL) */
write32 M3IF_BASE_ADDR, \ctl
.endm
.macro core_init
mrc p15, 0, r1, c1, c0, 0
/* Set branch prediction enable */
mrc p15, 0, r0, c1, c0, 1
orr r0, r0, #7
mcr p15, 0, r0, c1, c0, 1
orr r1, r1, #1 << 11
/* Set unaligned access enable */
orr r1, r1, #1 << 22
/* Set low int latency enable */
orr r1, r1, #1 << 21
mcr p15, 0, r1, c1, c0, 0
mov r0, #0
mcr p15, 0, r0, c15, c2, 4
mcr p15, 0, r0, c7, c7, 0 /* Invalidate I cache and D cache */
mcr p15, 0, r0, c8, c7, 0 /* Invalidate TLBs */
mcr p15, 0, r0, c7, c10, 4 /* Drain the write buffer */
/* Setup the Peripheral Port Memory Remap Register */
ldr r0, =0x40000015 /* Start from AIPS 2-GB region */
mcr p15, 0, r0, c15, c2, 4
.endm
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