1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
5 * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
8 #include <asm/arch/imx-regs.h>
9 #include <generated/asm-offsets.h>
10 #include <asm/macro.h>
13 * AIPS setup - Only setup MPROTx registers.
14 * The PACR default values are good.
16 * Default argument values:
17 * - MPR: Set all MPROTx to be non-bufferable, trusted for R/W, not forced to
19 * - OPACR: Clear the on and off peripheral modules Supervisor Protect bit for
20 * SDMA to access them.
22 .macro init_aips mpr=0x77777777, opacr=0x00000000
23 ldr r0, =AIPS1_BASE_ADDR
25 str r1, [r0, #AIPS_MPR_0_7]
26 str r1, [r0, #AIPS_MPR_8_15]
27 ldr r2, =AIPS2_BASE_ADDR
28 str r1, [r2, #AIPS_MPR_0_7]
29 str r1, [r2, #AIPS_MPR_8_15]
31 /* Did not change the AIPS control registers access type. */
33 str r1, [r0, #AIPS_OPACR_0_7]
34 str r1, [r0, #AIPS_OPACR_8_15]
35 str r1, [r0, #AIPS_OPACR_16_23]
36 str r1, [r0, #AIPS_OPACR_24_31]
37 str r1, [r0, #AIPS_OPACR_32_39]
38 str r1, [r2, #AIPS_OPACR_0_7]
39 str r1, [r2, #AIPS_OPACR_8_15]
40 str r1, [r2, #AIPS_OPACR_16_23]
41 str r1, [r2, #AIPS_OPACR_24_31]
42 str r1, [r2, #AIPS_OPACR_32_39]
46 * MAX (Multi-Layer AHB Crossbar Switch) setup
48 * Default argument values:
49 * - MPR: priority is M4 > M2 > M3 > M5 > M0 > M1
50 * - SGPCR: always park on last master
51 * - MGPCR: restore default values
53 .macro init_max mpr=0x00302154, sgpcr=0x00000010, mgpcr=0x00000000
54 ldr r0, =MAX_BASE_ADDR
56 str r1, [r0, #MAX_MPR0] /* for S0 */
57 str r1, [r0, #MAX_MPR1] /* for S1 */
58 str r1, [r0, #MAX_MPR2] /* for S2 */
59 str r1, [r0, #MAX_MPR3] /* for S3 */
60 str r1, [r0, #MAX_MPR4] /* for S4 */
62 str r1, [r0, #MAX_SGPCR0] /* for S0 */
63 str r1, [r0, #MAX_SGPCR1] /* for S1 */
64 str r1, [r0, #MAX_SGPCR2] /* for S2 */
65 str r1, [r0, #MAX_SGPCR3] /* for S3 */
66 str r1, [r0, #MAX_SGPCR4] /* for S4 */
68 str r1, [r0, #MAX_MGPCR0] /* for M0 */
69 str r1, [r0, #MAX_MGPCR1] /* for M1 */
70 str r1, [r0, #MAX_MGPCR2] /* for M2 */
71 str r1, [r0, #MAX_MGPCR3] /* for M3 */
72 str r1, [r0, #MAX_MGPCR4] /* for M4 */
73 str r1, [r0, #MAX_MGPCR5] /* for M5 */
79 * Default argument values:
81 * MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
82 * MRRP[1] = L2CC1 not on priority list (0 << 1) = 0x00000000
83 * MRRP[2] = MBX not on priority list (0 << 2) = 0x00000000
84 * MRRP[3] = MAX1 not on priority list (0 << 3) = 0x00000000
85 * MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000
86 * MRRP[5] = MPEG4 not on priority list (0 << 5) = 0x00000000
87 * MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
88 * MRRP[7] = IPU2 not on priority list (0 << 7) = 0x00000000
92 .macro init_m3if ctl=0x00000040
93 /* M3IF Control Register (M3IFCTL) */
94 write32 M3IF_BASE_ADDR, \ctl
98 mrc p15, 0, r1, c1, c0, 0
100 /* Set branch prediction enable */
101 mrc p15, 0, r0, c1, c0, 1
103 mcr p15, 0, r0, c1, c0, 1
106 /* Set unaligned access enable */
109 /* Set low int latency enable */
112 mcr p15, 0, r1, c1, c0, 0
116 mcr p15, 0, r0, c15, c2, 4
118 mcr p15, 0, r0, c7, c7, 0 /* Invalidate I cache and D cache */
119 mcr p15, 0, r0, c8, c7, 0 /* Invalidate TLBs */
120 mcr p15, 0, r0, c7, c10, 4 /* Drain the write buffer */
122 /* Setup the Peripheral Port Memory Remap Register */
123 ldr r0, =0x40000015 /* Start from AIPS 2-GB region */
124 mcr p15, 0, r0, c15, c2, 4