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Diffstat (limited to 'board/mx31ads/lowlevel_init.S')
| -rw-r--r-- | board/mx31ads/lowlevel_init.S | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/board/mx31ads/lowlevel_init.S b/board/mx31ads/lowlevel_init.S deleted file mode 100644 index bc05b43..0000000 --- a/board/mx31ads/lowlevel_init.S +++ /dev/null @@ -1,288 +0,0 @@ -/* - * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de> - * - * 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/mx31-regs.h> - -.macro REG reg, val - ldr r2, =\reg - ldr r3, =\val - str r3, [r2] -.endm - -.macro REG8 reg, val - ldr r2, =\reg - ldr r3, =\val - strb r3, [r2] -.endm - -.macro DELAY loops - ldr r2, =\loops -1: - subs r2, r2, #1 - nop - bcs 1b -.endm - -/* RedBoot: AIPS setup - Only setup MPROTx registers. - * The PACR default values are good.*/ -.macro init_aips - /* - * Set all MPROTx to be non-bufferable, trusted for R/W, - * not forced to user-mode. - */ - ldr r0, =0x43F00000 - ldr r1, =0x77777777 - str r1, [r0, #0x00] - str r1, [r0, #0x04] - ldr r0, =0x53F00000 - str r1, [r0, #0x00] - str r1, [r0, #0x04] - - /* - * 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, =0x43F00000 - ldr r1, =0x0 - str r1, [r0, #0x40] - str r1, [r0, #0x44] - str r1, [r0, #0x48] - str r1, [r0, #0x4C] - ldr r1, [r0, #0x50] - and r1, r1, #0x00FFFFFF - str r1, [r0, #0x50] - - ldr r0, =0x53F00000 - ldr r1, =0x0 - str r1, [r0, #0x40] - str r1, [r0, #0x44] - str r1, [r0, #0x48] - str r1, [r0, #0x4C] - ldr r1, [r0, #0x50] - and r1, r1, #0x00FFFFFF - str r1, [r0, #0x50] -.endm /* init_aips */ - -/* RedBoot: MAX (Multi-Layer AHB Crossbar Switch) setup */ -.macro init_max - ldr r0, =0x43F04000 - /* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */ - ldr r1, =0x00302154 - 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, =0x10 - 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, =0x0 - 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 */ -.endm /* init_max */ - -/* RedBoot: M3IF setup */ -.macro init_m3if - /* Configure M3IF registers */ - ldr r1, =0xB8003000 - /* - * 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, =0x00000040 - str r0, [r1] /* M3IF control reg */ -.endm /* init_m3if */ - -/* RedBoot: To support 133MHz DDR */ -.macro init_drive_strength - /* - * Disable maximum drive strength SDRAM/DDR lines by clearing DSE1 bits - * in SW_PAD_CTL registers - */ - - /* SDCLK */ - ldr r1, =0x43FAC200 - ldr r0, [r1, #0x6C] - bic r0, r0, #(1 << 12) - str r0, [r1, #0x6C] - - /* CAS */ - ldr r0, [r1, #0x70] - bic r0, r0, #(1 << 22) - str r0, [r1, #0x70] - - /* RAS */ - ldr r0, [r1, #0x74] - bic r0, r0, #(1 << 2) - str r0, [r1, #0x74] - - /* CS2 (CSD0) */ - ldr r0, [r1, #0x7C] - bic r0, r0, #(1 << 22) - str r0, [r1, #0x7C] - - /* DQM3 */ - ldr r0, [r1, #0x84] - bic r0, r0, #(1 << 22) - str r0, [r1, #0x84] - - /* DQM2, DQM1, DQM0, SD31-SD0, A25-A0, MA10 (0x288..0x2DC) */ - ldr r2, =22 /* (0x2E0 - 0x288) / 4 = 22 */ -pad_loop: - ldr r0, [r1, #0x88] - bic r0, r0, #(1 << 22) - bic r0, r0, #(1 << 12) - bic r0, r0, #(1 << 2) - str r0, [r1, #0x88] - add r1, r1, #4 - subs r2, r2, #0x1 - bne pad_loop -.endm /* init_drive_strength */ - -/* CPLD on CS4 setup */ -.macro init_cs4 - ldr r0, =WEIM_BASE - ldr r1, =0x0000D843 - str r1, [r0, #0x40] - ldr r1, =0x22252521 - str r1, [r0, #0x44] - ldr r1, =0x22220A00 - str r1, [r0, #0x48] -.endm /* init_cs4 */ - -.globl lowlevel_init -lowlevel_init: - - /* Redboot initializes very early AIPS, what for? - * 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 - - init_aips - - init_max - - init_m3if - - init_drive_strength - - init_cs4 - - /* Image Processing Unit: */ - /* Too early to switch display on? */ - /* Switch on Display Interface */ - REG IPU_CONF, IPU_CONF_DI_EN - /* Clock Control Module: */ - /* Use CKIH, MCU PLL off */ - REG CCM_CCMR, 0x074B0BF5 - - DELAY 0x40000 - /* MCU PLL on */ - REG CCM_CCMR, 0x074B0BF5 | CCMR_MPE - /* Switch to MCU PLL */ - REG CCM_CCMR, (0x074B0BF5 | CCMR_MPE) & ~CCMR_MDS - - /* PBC CPLD on CS4 */ - mov r1, #CS4_BASE - ldrh r1, [r1, #0x2] - /* Is 27MHz switch set? */ - ands r1, r1, #0x16 - - /* 532-133-66.5 */ - ldr r0, =CCM_BASE - ldr r1, =0xFF871D58 - /* PDR0 */ - str r1, [r0, #0x4] - ldreq r1, MPCTL_PARAM_532 - ldrne r1, MPCTL_PARAM_532_27 - /* MPCTL */ - str r1, [r0, #0x10] - - /* Set UPLL=240MHz, USB=60MHz */ - ldr r1, =0x49FCFE7F - /* PDR1 */ - str r1, [r0, #0x8] - ldreq r1, UPCTL_PARAM_240 - ldrne r1, UPCTL_PARAM_240_27 - /* UPCTL */ - str r1, [r0, #0x14] - /* default CLKO to 1/8 of the ARM core */ - mov r1, #0x000002C0 - add r1, r1, #0x00000006 - /* COSR */ - str r1, [r0, #0x1c] - - /* RedBoot sets 0x1ff, 7, 3, 5, 1, 3, 0 */ -/* REG CCM_PDR0, PDR0_CSI_PODF(0x1ff) | PDR0_PER_PODF(7) | \ - PDR0_HSP_PODF(2) | PDR0_NFC_PODF(6) | \ - PDR0_IPG_PODF(1) | PDR0_MAX_PODF(2) | \ - PDR0_MCU_PODF(0)*/ - - /* Redboot: 0, 51, 10, 12 / 0, 14, 9, 13 */ -/* REG CCM_MPCTL, PLL_PD(0) | PLL_MFD(0x33) | PLL_MFI(7) | \ - PLL_MFN(0x23)*/ - /* Default: 1, 4, 12, 1 */ - REG CCM_SPCTL, PLL_PD(1) | PLL_MFD(4) | PLL_MFI(12) | PLL_MFN(1) - - /* B8xxxxxx - NAND, 8xxxxxxx - CSD0 RAM */ - REG 0xB8001010, 0x00000004 - REG 0xB8001004, 0x006ac73a - REG 0xB8001000, 0x92100000 - REG 0x80000f00, 0x12344321 - REG 0xB8001000, 0xa2100000 - REG 0x80000000, 0x12344321 - REG 0x80000000, 0x12344321 - REG 0xB8001000, 0xb2100000 - REG8 0x80000033, 0xda - REG8 0x81000000, 0xff - REG 0xB8001000, 0x82226080 - REG 0x80000000, 0xDEADBEEF - REG 0xB8001010, 0x0000000c - - mov pc, lr - -MPCTL_PARAM_532: - .word (((1-1) << 26) + ((52-1) << 16) + (10 << 10) + (12 << 0)) -MPCTL_PARAM_532_27: - .word (((1-1) << 26) + ((15-1) << 16) + (9 << 10) + (13 << 0)) -UPCTL_PARAM_240: - .word (((2-1) << 26) + ((13-1) << 16) + (9 << 10) + (3 << 0)) -UPCTL_PARAM_240_27: - .word (((2-1) << 26) + ((9 -1) << 16) + (8 << 10) + (8 << 0)) |