*
* (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
+ * SPDX-License-Identifier: GPL-2.0+
*/
+#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
- /*
- * Set all MPROTx to be non-bufferable, trusted for R/W,
- * not forced to user-mode.
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_MPR_CONFIG
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
+.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]
- /*
- * Clear the on and off peripheral modules Supervisor Protect bit
- * for SDMA to access them. Did not change the AIPS control registers
- * (offset 0x20) access type
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_OPACR_CONFIG
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
+ /* 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 */
-.macro init_max
- ldr r0, =MAX_BASE_ADDR
- /* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
- ldr r1, =MAX_MPR_CONFIG
- str r1, [r0, #0x000] /* for S0 */
- str r1, [r0, #0x100] /* for S1 */
- str r1, [r0, #0x200] /* for S2 */
- str r1, [r0, #0x300] /* for S3 */
- str r1, [r0, #0x400] /* for S4 */
- /* SGPCR - always park on last master */
- ldr r1, =MAX_SGPCR_CONFIG
- str r1, [r0, #0x010] /* for S0 */
- str r1, [r0, #0x110] /* for S1 */
- str r1, [r0, #0x210] /* for S2 */
- str r1, [r0, #0x310] /* for S3 */
- str r1, [r0, #0x410] /* for S4 */
- /* MGPCR - restore default values */
- ldr r1, =MAX_MGPCR_CONFIG
- str r1, [r0, #0x800] /* for M0 */
- str r1, [r0, #0x900] /* for M1 */
- str r1, [r0, #0xA00] /* for M2 */
- str r1, [r0, #0xB00] /* for M3 */
- str r1, [r0, #0xC00] /* for M4 */
- str r1, [r0, #0xD00] /* for M5 */
+/*
+ * 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 */
-.macro init_m3if
- /* Configure M3IF registers */
- ldr r1, =M3IF_BASE_ADDR
- /*
- * M3IF Control Register (M3IFCTL)
- * MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
- * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
- * MRRP[2] = MBX not on priority list (0 << 0) = 0x00000000
- * MRRP[3] = MAX1 not on priority list (0 << 0) = 0x00000000
- * MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
- * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
- * MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
- * MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
- * ------------
- * 0x00000040
- */
- ldr r0, =M3IF_CONFIG
- str r0, [r1] /* M3IF control reg */
+/*
+ * 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 15, 0, r1, c1, c0, 0
+ mrc p15, 0, r1, c1, c0, 0
- mrc 15, 0, r0, c1, c0, 1
- orr r0, r0, #7
- mcr 15, 0, r0, c1, c0, 1
- orr r1, r1, #(1<<11)
+ /* 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)
+ orr r1, r1, #1 << 22
/* Set low int latency enable */
- orr r1, r1, #(1<<21)
+ orr r1, r1, #1 << 21
- mcr 15, 0, r1, c1, c0, 0
+ mcr p15, 0, r1, c1, c0, 0
- mov r0, #0
+ mov r0, #0
- /* Set branch prediction enable */
- mcr 15, 0, r0, c15, c2, 4
+ mcr p15, 0, r0, c15, c2, 4
- mcr 15, 0, r0, c7, c7, 0 /* invalidate I cache and D cache */
- mcr 15, 0, r0, c8, c7, 0 /* invalidate TLBs */
- mcr 15, 0, r0, c7, c10, 4 /* Drain the write buffer */
+ 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 */
- /*
- * initializes very early AIPS
- * Then it also initializes Multi-Layer AHB Crossbar Switch,
- * M3IF
- * Also setup the Peripheral Port Remap register inside the core
- */
- ldr r0, =0x40000015 /* start from AIPS 2GB region */
- mcr p15, 0, r0, c15, c2, 4
+ /* Setup the Peripheral Port Memory Remap Register */
+ ldr r0, =0x40000015 /* Start from AIPS 2-GB region */
+ mcr p15, 0, r0, c15, c2, 4
.endm
projects / u-boot / blobdiff