| /* |
| * 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 |
