The patch adds suupport for the Freescale's mx35pdk board (known as well as mx35_3stack).
The board boots from the NOR flash. Following devices are supported: - two ethernet devices (FEC and SMC911x on debug board) - I2C - PMIC (MC13892) via I2C interface - UART - NOR flash (64MB) - NAND flash (2GB) - basic access to mc9sdz60 registers via I2C interface
Signed-off-by: Stefano Babic sbabic@denx.de --- MAINTAINERS | 1 + MAKEALL | 1 + arch/arm/include/asm/arch-mx35/mmu.h | 172 -------------- board/freescale/mx35pdk/Makefile | 49 ++++ board/freescale/mx35pdk/config.mk | 25 ++ board/freescale/mx35pdk/imximage.cfg | 62 +++++ board/freescale/mx35pdk/lowlevel_init.S | 382 +++++++++++++++++++++++++++++++ board/freescale/mx35pdk/mx35pdk.c | 313 +++++++++++++++++++++++++ board/freescale/mx35pdk/mx35pdk.h | 101 ++++++++ boards.cfg | 1 + doc/README.mx35pdk | 185 +++++++++++++++ include/configs/mx35pdk.h | 269 ++++++++++++++++++++++ 12 files changed, 1389 insertions(+), 172 deletions(-) delete mode 100644 arch/arm/include/asm/arch-mx35/mmu.h create mode 100644 board/freescale/mx35pdk/Makefile create mode 100644 board/freescale/mx35pdk/config.mk create mode 100644 board/freescale/mx35pdk/imximage.cfg create mode 100644 board/freescale/mx35pdk/lowlevel_init.S create mode 100644 board/freescale/mx35pdk/mx35pdk.c create mode 100644 board/freescale/mx35pdk/mx35pdk.h create mode 100644 doc/README.mx35pdk create mode 100644 include/configs/mx35pdk.h
diff --git a/MAINTAINERS b/MAINTAINERS index d7cd09c..3abb4cb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -554,6 +554,7 @@ Stefano Babic sbabic@denx.de ea20 davinci polaris xscale trizepsiv xscale + mx35pdk i.MX35 mx51evk i.MX51 vision2 i.MX51
diff --git a/MAKEALL b/MAKEALL index a732e6a..31dbfe1 100755 --- a/MAKEALL +++ b/MAKEALL @@ -409,6 +409,7 @@ LIST_ARM11=" \ mx31ads \ mx31pdk \ mx31pdk_nand \ + mx35pdk \ qong \ smdk6400 \ tnetv107x_evm \ diff --git a/arch/arm/include/asm/arch-mx35/mmu.h b/arch/arm/include/asm/arch-mx35/mmu.h deleted file mode 100644 index 1b15dba..0000000 --- a/arch/arm/include/asm/arch-mx35/mmu.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#ifndef __ARM_ARCH_MMU_H -#define __ARM_ARCH_MMU_H - -/* - * Translation Table Base Bit Masks - */ -#define ARM_TRANSLATION_TABLE_MASK 0xFFFFC000 - -/* - * Domain Access Control Bit Masks - */ -#define ARM_ACCESS_TYPE_NO_ACCESS(domain_num) (0x0 << (domain_num)*2) -#define ARM_ACCESS_TYPE_CLIENT(domain_num) (0x1 << (domain_num)*2) -#define ARM_ACCESS_TYPE_MANAGER(domain_num) (0x3 << (domain_num)*2) - -struct ARM_MMU_FIRST_LEVEL_FAULT { - unsigned int id:2; - unsigned int sbz:30; -}; - -#define ARM_MMU_FIRST_LEVEL_FAULT_ID 0x0 - -struct ARM_MMU_FIRST_LEVEL_PAGE_TABLE { - unsigned int id:2; - unsigned int imp:2; - unsigned int domain:4; - unsigned int sbz:1; - unsigned int base_address:23; -}; - -#define ARM_MMU_FIRST_LEVEL_PAGE_TABLE_ID 0x1 - -struct ARM_MMU_FIRST_LEVEL_SECTION { - unsigned int id:2; - unsigned int b:1; - unsigned int c:1; - unsigned int imp:1; - unsigned int domain:4; - unsigned int sbz0:1; - unsigned int ap:2; - unsigned int sbz1:8; - unsigned int base_address:12; -}; - -#define ARM_MMU_FIRST_LEVEL_SECTION_ID 0x2 - -struct ARM_MMU_FIRST_LEVEL_RESERVED { - unsigned int id:2; - unsigned int sbz:30; -}; - -#define ARM_MMU_FIRST_LEVEL_RESERVED_ID 0x3 - -#define ARM_MMU_FIRST_LEVEL_DESCRIPTOR_ADDRESS(ttb_base, table_index) \ - (unsigned long *)((unsigned long)(ttb_base) + ((table_index) << 2)) - -#define ARM_FIRST_LEVEL_PAGE_TABLE_SIZE 0x4000 - -#define ARM_MMU_SECTION(ttb_base, actual_base, virtual_base, \ - cacheable, bufferable, perm) \ - { \ - register union ARM_MMU_FIRST_LEVEL_DESCRIPTOR desc; \ - desc.word = 0; \ - desc.section.id = ARM_MMU_FIRST_LEVEL_SECTION_ID; \ - desc.section.domain = 0; \ - desc.section.c = (cacheable); \ - desc.section.b = (bufferable); \ - desc.section.ap = (perm); \ - desc.section.base_address = (actual_base); \ - *ARM_MMU_FIRST_LEVEL_DESCRIPTOR_ADDRESS(ttb_base, (virtual_base)) \ - = desc.word; \ - } - -#define X_ARM_MMU_SECTION(abase, vbase, size, cache, buff, access) \ - { \ - int i; int j = abase; int k = vbase; \ - for (i = size; i > 0 ; i--, j++, k++) \ - ARM_MMU_SECTION(ttb_base, j, k, cache, buff, access); \ - } - -union ARM_MMU_FIRST_LEVEL_DESCRIPTOR { - unsigned long word; - struct ARM_MMU_FIRST_LEVEL_FAULT fault; - struct ARM_MMU_FIRST_LEVEL_PAGE_TABLE page_table; - struct ARM_MMU_FIRST_LEVEL_SECTION section; - struct ARM_MMU_FIRST_LEVEL_RESERVED reserved; -}; - -#define ARM_UNCACHEABLE 0 -#define ARM_CACHEABLE 1 -#define ARM_UNBUFFERABLE 0 -#define ARM_BUFFERABLE 1 - -#define ARM_ACCESS_PERM_NONE_NONE 0 -#define ARM_ACCESS_PERM_RO_NONE 0 -#define ARM_ACCESS_PERM_RO_RO 0 -#define ARM_ACCESS_PERM_RW_NONE 1 -#define ARM_ACCESS_PERM_RW_RO 2 -#define ARM_ACCESS_PERM_RW_RW 3 - -/* - * Initialization for the Domain Access Control Register - */ -#define ARM_ACCESS_DACR_DEFAULT ( \ - ARM_ACCESS_TYPE_MANAGER(0) | \ - ARM_ACCESS_TYPE_NO_ACCESS(1) | \ - ARM_ACCESS_TYPE_NO_ACCESS(2) | \ - ARM_ACCESS_TYPE_NO_ACCESS(3) | \ - ARM_ACCESS_TYPE_NO_ACCESS(4) | \ - ARM_ACCESS_TYPE_NO_ACCESS(5) | \ - ARM_ACCESS_TYPE_NO_ACCESS(6) | \ - ARM_ACCESS_TYPE_NO_ACCESS(7) | \ - ARM_ACCESS_TYPE_NO_ACCESS(8) | \ - ARM_ACCESS_TYPE_NO_ACCESS(9) | \ - ARM_ACCESS_TYPE_NO_ACCESS(10) | \ - ARM_ACCESS_TYPE_NO_ACCESS(11) | \ - ARM_ACCESS_TYPE_NO_ACCESS(12) | \ - ARM_ACCESS_TYPE_NO_ACCESS(13) | \ - ARM_ACCESS_TYPE_NO_ACCESS(14) | \ - ARM_ACCESS_TYPE_NO_ACCESS(15)) - -/* - * Translate the virtual address of ram space to physical address - * It is dependent on the implementation of mmu_init - */ -inline unsigned long iomem_to_phys(unsigned long virt) -{ - if (virt < 0x08000000) - return (unsigned long)(virt | PHYS_SDRAM_1); - - if ((virt & 0xF0000000) == PHYS_SDRAM_1) - return (unsigned long)(virt & (~0x08000000)); - - return (unsigned long)virt; -} - -/* - * Remap the physical address of ram space to uncacheable virtual address space - * It is dependent on the implementation of hal_mmu_init - */ -void __iounmap(void *addr) -{ - return; -} - -void *__ioremap(unsigned long offset, size_t size, unsigned long flags) -{ - if (1 == flags) { - /* 0x88000000~0x87FFFFFF is uncacheable meory - space which is mapped to SDRAM */ - if ((offset & 0xF0000000) == PHYS_SDRAM_1) - return (void *)(offset | 0x08000000); - else - return NULL; - } else - return (void *)offset; -} - -#endif diff --git a/board/freescale/mx35pdk/Makefile b/board/freescale/mx35pdk/Makefile new file mode 100644 index 0000000..b4a60d6 --- /dev/null +++ b/board/freescale/mx35pdk/Makefile @@ -0,0 +1,49 @@ +# +# Copyright (C) 2007, Guennadi Liakhovetski lg@denx.de +# +# (C) Copyright 2008-2009 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS := mx35pdk.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(call cmd_link_o_target, $(OBJS) $(SOBJS)) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/freescale/mx35pdk/config.mk b/board/freescale/mx35pdk/config.mk new file mode 100644 index 0000000..3db1c85 --- /dev/null +++ b/board/freescale/mx35pdk/config.mk @@ -0,0 +1,25 @@ +# +# (C) Copyright 2010 +# Stefano Babic DENX Software Engineering sbabic@denx.de. +# +# Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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 +# +CONFIG_SYS_TEXT_BASE = 0xA0000000 diff --git a/board/freescale/mx35pdk/imximage.cfg b/board/freescale/mx35pdk/imximage.cfg new file mode 100644 index 0000000..127a38b --- /dev/null +++ b/board/freescale/mx35pdk/imximage.cfg @@ -0,0 +1,62 @@ +# +# (C) Copyright 2010 +# Stefano Babic DENX Software Engineering sbabic@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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. 51 Franklin Street Fifth Floor Boston, +# MA 02110-1301 USA +# +# Refer docs/README.imxmage for more details about how-to configure +# and create imximage boot image +# +# The syntax is taken as close as possible with the kwbimage + +BOOT_FROM nand + +# Device Configuration Data (DCD) +# +# Each entry must have the format: +# Addr-type Address Value +# +# where: +# Addr-type register length (1,2 or 4 bytes) +# Address absolute address of the register +# value value to be stored in the register + +# WEIM config CS5 +DATA 4 0xB8002050 0x0000d843 +DATA 4 0xB8002054 0x22252521 +DATA 4 0xB8002058 0x22220a00 + +# DDR2 init +DATA 4 0xB8001010 0x00000304 +DATA 4 0xB8001010 0x0000030C +DATA 4 0xB8001004 0x007ffc3f +DATA 4 0xB8001000 0x92220000 +DATA 4 0x80000400 0x12345678 +DATA 4 0xB8001000 0xA2220000 +DATA 4 0x80000000 0x87654321 +DATA 4 0x80000000 0x87654321 +DATA 4 0xB8001000 0xB2220000 +DATA 1 0x80000233 0xda +DATA 1 0x82000780 0xda +DATA 1 0x82000400 0xda +DATA 4 0xB8001000 0x82226080 +DATA 4 0xB8001004 0x007ffc3f +DATA 4 0xB800100C 0x007ffc3f +DATA 4 0xB8001010 0x00000304 +DATA 4 0xB8001008 0x00002000 diff --git a/board/freescale/mx35pdk/lowlevel_init.S b/board/freescale/mx35pdk/lowlevel_init.S new file mode 100644 index 0000000..52636db --- /dev/null +++ b/board/freescale/mx35pdk/lowlevel_init.S @@ -0,0 +1,382 @@ +/* + * 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 <config.h> +#include <asm/arch/imx-regs.h> +#include "mx35pdk.h" + +/* + * return soc version + * 0x10: TO1 + * 0x20: TO2 + * 0x30: TO3 + */ +.macro check_soc_version ret, tmp + ldr \tmp, =IIM_BASE_ADDR + ldr \ret, [\tmp, #IIM_SREV] + cmp \ret, #0x00 + moveq \tmp, #ROMPATCH_REV + ldreq \ret, [\tmp] + moveq \ret, \ret, lsl #4 + addne \ret, \ret, #0x10 +.endm + +/* 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, =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] + + /* + * 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] +.endm /* init_aips */ + +/* 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 */ +.endm /* init_max */ + +/* 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 */ +.endm /* init_m3if */ + +/* To support 133MHz DDR */ +.macro init_drive_strength +/* + mov r0, #0x2 + ldr r1, =IOMUXC_BASE_ADDR + add r1, r1, #0x368 + add r2, r1, #0x4C8 - 0x368 +1: str r0, [r1], #4 + cmp r1, r2 + ble 1b +*/ +.endm /* init_drive_strength */ + +/* CPLD on CS5 setup */ +.macro init_debug_board + ldr r0, =DBG_BASE_ADDR + ldr r1, =DBG_CSCR_U_CONFIG + str r1, [r0, #0x00] + ldr r1, =DBG_CSCR_L_CONFIG + str r1, [r0, #0x04] + ldr r1, =DBG_CSCR_A_CONFIG + str r1, [r0, #0x08] +.endm /* init_debug_board */ + +/* clock setup */ +.macro init_clock + ldr r0, =CCM_BASE_ADDR + + /* default CLKO to 1/32 of the ARM core*/ + ldr r1, [r0, #CLKCTL_COSR] + bic r1, r1, #0x00000FF00 + bic r1, r1, #0x0000000FF + mov r2, #0x00006C00 + add r2, r2, #0x67 + orr r1, r1, r2 + str r1, [r0, #CLKCTL_COSR] + + ldr r2, =CCM_CCMR_CONFIG + str r2, [r0, #CLKCTL_CCMR] + + check_soc_version r1, r2 + cmp r1, #CHIP_REV_2_0 + ldrhs r3, =CCM_MPLL_532_HZ + bhs 1f + ldr r2, [r0, #CLKCTL_PDR0] + tst r2, #CLKMODE_CONSUMER + ldrne r3, =CCM_MPLL_532_HZ /* consumer path*/ + ldreq r3, =CCM_MPLL_399_HZ /* auto path*/ +1: + str r3, [r0, #CLKCTL_MPCTL] + + ldr r1, =CCM_PPLL_300_HZ + str r1, [r0, #CLKCTL_PPCTL] + + ldr r1, =CCM_PDR0_CONFIG + bic r1, r1, #0x800000 + str r1, [r0, #CLKCTL_PDR0] + + ldr r1, [r0, #CLKCTL_CGR0] + orr r1, r1, #0x0C300000 + str r1, [r0, #CLKCTL_CGR0] + + ldr r1, [r0, #CLKCTL_CGR1] + orr r1, r1, #0x00000C00 + orr r1, r1, #0x00000003 + str r1, [r0, #CLKCTL_CGR1] +.endm /* init_clock */ + +.macro setup_sdram + ldr r0, =ESDCTL_BASE_ADDR + mov r3, #0x2000 + str r3, [r0, #0x0] + str r3, [r0, #0x8] + + /*ip(r12) has used to save lr register in upper calling*/ + mov fp, lr + + mov r5, #0x00 + mov r2, #0x00 + mov r1, #CSD0_BASE_ADDR + bl setup_sdram_bank + cmp r3, #0x0 + orreq r5, r5, #1 + eorne r2, r2, #0x1 + blne setup_sdram_bank + + mov lr, fp + +1: + ldr r3, =ESDCTL_DELAY_LINE5 + str r3, [r0, #0x30] +.endm /* setup_sdram */ + +/* .section ".text.init", "x" */ + +.globl lowlevel_init +lowlevel_init: + mov r10, lr + + mrc 15, 0, r1, c1, c0, 0 + +#ifndef BRANCH_PREDICTION_ENABLE + mrc 15, 0, r0, c1, c0, 1 + bic r0, r0, #7 + mcr 15, 0, r0, c1, c0, 1 +#else + mrc 15, 0, r0, c1, c0, 1 + orr r0, r0, #7 + mcr 15, 0, r0, c1, c0, 1 + orr r1, r1, #(1<<11) +#endif + + /* Set unaligned access enable */ + orr r1, r1, #(1<<22) + + /* Set low int latency enable */ + orr r1, r1, #(1<<21) + + mcr 15, 0, r1, c1, c0, 0 + + mov r0, #0 + + /* Set branch prediction enable */ + mcr 15, 0, r0, c15, c2, 4 + + /* Invalidate cache */ + 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 */ + + /* 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_clock + init_debug_board + + cmp pc, #PHYS_SDRAM_1 + blo init_sdram_start + cmp pc, #(PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE) + blo skip_sdram_setup + +init_sdram_start: + /*init_sdram*/ + setup_sdram + +skip_sdram_setup: + mov lr, r10 + mov pc, lr + + +/* + * r0: ESDCTL control base, r1: sdram slot base + * r2: DDR type(0:DDR2, 1:MDDR) r3, r4:working base + */ +setup_sdram_bank: + mov r3, #0xE /*0xA + 0x4*/ + tst r2, #0x1 + orreq r3, r3, #0x300 /*DDR2*/ + str r3, [r0, #0x10] + bic r3, r3, #0x00A + str r3, [r0, #0x10] + beq 2f + + mov r3, #0x20000 +1: subs r3, r3, #1 + bne 1b + +2: tst r2, #0x1 + ldreq r3, =ESDCTL_DDR2_CONFIG + ldrne r3, =ESDCTL_MDDR_CONFIG + cmp r1, #CSD1_BASE_ADDR + strlo r3, [r0, #0x4] + strhs r3, [r0, #0xC] + + ldr r3, =ESDCTL_0x92220000 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + mov r3, #0xDA + ldr r4, =ESDCTL_PRECHARGE + strb r3, [r1, r4] + + tst r2, #0x1 + bne skip_set_mode + + cmp r1, #CSD1_BASE_ADDR + ldr r3, =ESDCTL_0xB2220000 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + mov r3, #0xDA + ldr r4, =ESDCTL_DDR2_EMR2 + strb r3, [r1, r4] + ldr r4, =ESDCTL_DDR2_EMR3 + strb r3, [r1, r4] + ldr r4, =ESDCTL_DDR2_EN_DLL + strb r3, [r1, r4] + ldr r4, =ESDCTL_DDR2_RESET_DLL + strb r3, [r1, r4] + + ldr r3, =ESDCTL_0x92220000 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + mov r3, #0xDA + ldr r4, =ESDCTL_PRECHARGE + strb r3, [r1, r4] + +skip_set_mode: + cmp r1, #CSD1_BASE_ADDR + ldr r3, =ESDCTL_0xA2220000 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + mov r3, #0xDA + strb r3, [r1] + strb r3, [r1] + + ldr r3, =ESDCTL_0xB2220000 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + tst r2, #0x1 + ldreq r4, =ESDCTL_DDR2_MR + ldrne r4, =ESDCTL_MDDR_MR + mov r3, #0xDA + strb r3, [r1, r4] + ldreq r4, =ESDCTL_DDR2_OCD_DEFAULT + streqb r3, [r1, r4] + ldreq r4, =ESDCTL_DDR2_EN_DLL + ldrne r4, =ESDCTL_MDDR_EMR + strb r3, [r1, r4] + + cmp r1, #CSD1_BASE_ADDR + ldr r3, =ESDCTL_0x82228080 + strlo r3, [r0, #0x0] + strhs r3, [r0, #0x8] + + tst r2, #0x1 + moveq r4, #0x20000 + movne r4, #0x200 +1: subs r4, r4, #1 + bne 1b + + str r3, [r1, #0x100] + ldr r4, [r1, #0x100] + cmp r3, r4 + movne r3, #1 + moveq r3, #0 + + mov pc, lr diff --git a/board/freescale/mx35pdk/mx35pdk.c b/board/freescale/mx35pdk/mx35pdk.c new file mode 100644 index 0000000..f95116d --- /dev/null +++ b/board/freescale/mx35pdk/mx35pdk.c @@ -0,0 +1,313 @@ +/* + * Copyright (C) 2007, Guennadi Liakhovetski lg@denx.de + * + * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 <common.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/mx35_pins.h> +#include <asm/arch/iomux.h> +#include <i2c.h> +#include <fsl_pmic.h> +#include <mc9sdz60.h> +#include <mc13892.h> +#include <linux/types.h> +#include <mxc_gpio.h> +#include <asm/arch/sys_proto.h> +#include <netdev.h> + +#ifndef BOARD_LATE_INIT +#error "BOARD_LATE_INIT must be set for this board" +#endif + +#ifndef CONFIG_BOARD_EARLY_INIT_F +#error "CONFIG_BOARD_EARLY_INIT_F must be set for this board" +#endif + +#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); }) + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, + PHYS_SDRAM_1_SIZE); + + return 0; +} + +static void setup_iomux_i2c(void) +{ + int pad; + + /* setup pins for I2C1 */ + mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION); + + pad = (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE \ + | PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain); + + mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, pad); + mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, pad); +} + + +static void setup_iomux_spi(void) +{ + mxc_request_iomux(MX35_PIN_CSPI1_MOSI, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_MISO, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SS0, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SS1, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SCLK, MUX_CONFIG_SION); +} + +static void setup_iomux_fec(void) +{ + int pad; + + /* setup pins for FEC */ + mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC); + + pad = (PAD_CTL_DRV_3_3V | PAD_CTL_PUE_PUD | PAD_CTL_ODE_CMOS | \ + PAD_CTL_DRV_NORMAL | PAD_CTL_SRE_SLOW); + + mxc_iomux_set_pad(MX35_PIN_FEC_TX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_DV, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_COL, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA0, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA0, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TX_EN, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_MDC, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_MDIO, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_22K_PU); + mxc_iomux_set_pad(MX35_PIN_FEC_TX_ERR, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_ERR, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_CRS, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA1, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA1, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA2, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA2, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA3, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA3, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); +} + +int board_early_init_f(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + /* enable clocks */ + writel(readl(&ccm->cgr0) | + MXC_CCM_CGR0_EMI_MASK | + MXC_CCM_CGR0_EDI0_MASK | + MXC_CCM_CGR0_EPIT1_MASK, + &ccm->cgr0); + + writel(readl(&ccm->cgr1) | + MXC_CCM_CGR1_FEC_MASK | + MXC_CCM_CGR1_GPIO1_MASK | + MXC_CCM_CGR1_GPIO2_MASK | + MXC_CCM_CGR1_GPIO3_MASK | + MXC_CCM_CGR1_I2C1_MASK | + MXC_CCM_CGR1_I2C2_MASK | + MXC_CCM_CGR1_IPU_MASK, + &ccm->cgr1); + + /* Setup NAND */ + __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr); + + setup_iomux_i2c(); + setup_iomux_fec(); + setup_iomux_spi(); + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS; /* board id for linux */ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +static inline int board_detect(void) +{ + int id; + + id = pmic_reg_read(REG_IDENTIFICATION); + + id = (id >> 6) & 0x7; + if (id == 0x7) + return 1; + return 0; +} + +u32 get_board_rev(void) +{ + int rev; + + rev = board_detect(); + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} + +int board_late_init(void) +{ + u8 val; + u32 pmic_val; + + if (board_detect()) { + mxc_request_iomux(MX35_PIN_WATCHDOG_RST, MUX_CONFIG_SION | + MUX_CONFIG_ALT1); + + pmic_val = pmic_reg_read(REG_SETTING_0); + pmic_reg_write(REG_SETTING_0, pmic_val | VO_1_30V | VO_1_50V); + pmic_val = pmic_reg_read(REG_MODE_0); + pmic_reg_write(REG_MODE_0, pmic_val | VGEN3EN); + + mxc_request_iomux(MX35_PIN_COMPARE, MUX_CONFIG_GPIO); + mxc_iomux_set_input(MUX_IN_GPIO1_IN_5, INPUT_CTL_PATH0); + + mxc_gpio_direction(37, MXC_GPIO_DIRECTION_OUT); + mxc_gpio_set(37, 1); + } + + val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04; + mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val); + mdelay(200); + + val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F; + mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); + mdelay(200); + + val |= 0x80; + mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); + + return 0; +} + +int checkboard(void) +{ + u32 system_rev = get_cpu_rev(); + u32 board_rev = 0; + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + puts("Board: MX35 3STACK "); + + /* + * Be sure that I2C is initialized to check + * the board revision + */ + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + board_rev = board_detect(); + + /* Print board revision */ + if (board_rev) + puts("2.0"); + else + puts("1.0"); + + /* Print CPU revision */ + puts(" i.MX35 "); + if (system_rev & CHIP_REV_2_0) + puts("2.0 ["); + else + puts("1.0 ["); + + switch (readl(&ccm->rcsr) & 0x0F) { + case 0x0000: + puts("POR"); + break; + case 0x0002: + puts("JTAG"); + break; + case 0x0004: + puts("RST"); + break; + case 0x0008: + puts("WDT"); + break; + default: + puts("unknown"); + } + puts("]\n"); + + return 0; +} + +#if defined(CONFIG_SMC911X) +extern int smc911x_initialize(u8 dev_num, int base_addr); +#endif + +int board_eth_init(bd_t *bis) +{ + int rc = -ENODEV; +#if defined(CONFIG_SMC911X) + rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); +#endif + + cpu_eth_init(bis); + + return rc; +} + diff --git a/board/freescale/mx35pdk/mx35pdk.h b/board/freescale/mx35pdk/mx35pdk.h new file mode 100644 index 0000000..409aeb2 --- /dev/null +++ b/board/freescale/mx35pdk/mx35pdk.h @@ -0,0 +1,101 @@ +/* + * + * (c) 2007 Pengutronix, Sascha Hauer s.hauer@pengutronix.de + * + * (C) Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#ifndef __BOARD_MX35_3STACK_H +#define __BOARD_MX35_3STACK_H + +#define AIPS_MPR_CONFIG 0x77777777 +#define AIPS_OPACR_CONFIG 0x00000000 + +/* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */ +#define MAX_MPR_CONFIG 0x00302154 +/* SGPCR - always park on last master */ +#define MAX_SGPCR_CONFIG 0x00000010 +/* MGPCR - restore default values */ +#define MAX_MGPCR_CONFIG 0x00000000 + +/* + * 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 + */ +#define M3IF_CONFIG 0x00000040 + +#define DBG_BASE_ADDR WEIM_CTRL_CS5 +#define DBG_CSCR_U_CONFIG 0x0000D843 +#define DBG_CSCR_L_CONFIG 0x22252521 +#define DBG_CSCR_A_CONFIG 0x22220A00 + +#define CCM_CCMR_CONFIG 0x003F4208 +#define CCM_PDR0_CONFIG 0x00801000 + +#define PLL_BRM_OFFSET 31 +#define PLL_PD_OFFSET 26 +#define PLL_MFD_OFFSET 16 +#define PLL_MFI_OFFSET 10 + +#define _PLL_BRM(x) ((x) << PLL_BRM_OFFSET) +#define _PLL_PD(x) (((x) - 1) << PLL_PD_OFFSET) +#define _PLL_MFD(x) (((x) - 1) << PLL_MFD_OFFSET) +#define _PLL_MFI(x) ((x) << PLL_MFI_OFFSET) +#define _PLL_MFN(x) (x) +#define _PLL_SETTING(brm, pd, mfd, mfi, mfn) \ + (_PLL_BRM(brm) | _PLL_PD(pd) | _PLL_MFD(mfd) | _PLL_MFI(mfi) |\ + _PLL_MFN(mfn)) + +#define CCM_MPLL_532_HZ _PLL_SETTING(1, 1, 12, 11, 1) +#define CCM_MPLL_399_HZ _PLL_SETTING(0, 1, 16, 8, 5) +#define CCM_PPLL_300_HZ _PLL_SETTING(0, 1, 4, 6, 1) + +/* MEMORY SETTING */ +#define ESDCTL_0x92220000 0x92220000 +#define ESDCTL_0xA2220000 0xA2220000 +#define ESDCTL_0xB2220000 0xB2220000 +#define ESDCTL_0x82228080 0x82228080 + +#define ESDCTL_PRECHARGE 0x00000400 + +#define ESDCTL_MDDR_CONFIG 0x007FFC3F +#define ESDCTL_MDDR_MR 0x00000033 +#define ESDCTL_MDDR_EMR 0x02000000 + +#define ESDCTL_DDR2_CONFIG 0x007FFC3F +#define ESDCTL_DDR2_EMR2 0x04000000 +#define ESDCTL_DDR2_EMR3 0x06000000 +#define ESDCTL_DDR2_EN_DLL 0x02000400 +#define ESDCTL_DDR2_RESET_DLL 0x00000333 +#define ESDCTL_DDR2_MR 0x00000233 +#define ESDCTL_DDR2_OCD_DEFAULT 0x02000780 + +#define ESDCTL_DELAY_LINE5 0x00F49F00 +#endif /* __BOARD_MX35_3STACK_H */ diff --git a/boards.cfg b/boards.cfg index 0574bb2..9496c29 100644 --- a/boards.cfg +++ b/boards.cfg @@ -38,6 +38,7 @@ qong arm arm1136 - davedenx mx31 mx31ads arm arm1136 - freescale mx31 imx31_litekit arm arm1136 - logicpd mx31 +mx35pdk arm arm1136 - freescale mx35 omap2420h4 arm arm1136 - ti omap24xx tnetv107x_evm arm arm1176 tnetv107xevm ti tnetv107x armadillo arm arm720t diff --git a/doc/README.mx35pdk b/doc/README.mx35pdk new file mode 100644 index 0000000..3cca7e4 --- /dev/null +++ b/doc/README.mx35pdk @@ -0,0 +1,185 @@ +Overview +-------------- + +mx35pdk (known als as mx35_3stack) is a development board by Freescale. +It consists of three pluggable board: + - CPU module, with CPU, RAM, flash + - Personality board, with most interfaces (USB, Network,..) + - Debug board with JTAG header. + +The board is usually delivered with redboot. This howto explains how to boot +a linux kernel and how to replace the original bootloader with U-Boot. + +The board is delivered with Redboot on the NAND flash. It is possible to +switch the boot device with the switches SW1-SW2 on the Personality board, +and with SW5-SW10 on the Debug board. + +Delivered Redboot script to start the kernel +--------------------------------------------------- + +In redboot the following script is stored: + +fis load kernel +exec -c "noinitrd console=ttymxc0,115200 root=/dev/mtdblock8 rw rootfstype=jffs2 ip=dhcp fec_mac=00:04:9F:00:E7:76" + +Kernel is taken from flash. The image is in zImage format. + +Booting from NET, rootfs on NFS: +----------------------------------- + +To change the script in redboot: + +load -r -b 0x100000 <path_to_zImage> +exec -c "noinitrd console=ttymxc0,115200 root=/dev/nfsroot rootfstype=nfsroot nfsroot=192.168.1.1:/opt/eldk-4.2-arm/armVFP rw ip=dhcp" + +If the ip address is not set, you can set it with : + +ip_address -l <board_ip/netmask> -h <server_ip> + +Linux partitions: +--------------------------- + +As default, the board is shipped with these partition tables for NAND +and for NOR: + +Creating 5 MTD partitions on "NAND 2GiB 3,3V 8-bit": +0x00000000-0x00100000 : "nand.bootloader" +0x00100000-0x00600000 : "nand.kernel" +0x00600000-0x06600000 : "nand.rootfs" +0x06600000-0x06e00000 : "nand.configure" +0x06e00000-0x80000000 : "nand.userfs" + +Creating 6 MTD partitions on "mxc_nor_flash.0": +0x00000000-0x00080000 : "Bootloader" +0x00080000-0x00480000 : "nor.Kernel" +0x00480000-0x02280000 : "nor.userfs" +0x02280000-0x03e80000 : "nor.rootfs" +0x01fe0000-0x01fe3000 : "FIS directory" +0x01fff000-0x04000000 : "Redboot config" + +NAND partitions can be recognized enabling in kernel CONFIG_MTD_REDBOOT_PARTS. +For this board, CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK should be set to 2. + +However, the setup in redboot is not correct and does not use the whole flash. + +Better solution is to use the kernel parameter mtdparts. Here the resulting script to be defined in RedBoot with fconfig: + +load -r -b 0x100000 sbabic/mx35pdk/zImage.2.6.37 +exec -c "noinitrd console=ttymxc0,115200 root=/dev/nfsroot rootfstype=nfsroot nfsroot=192.168.1.1:/opt/eldk-4.2-arm/arm rw ip=dhcp mtdparts=mxc_nand:1m(boot),5m(linux),96m(root),8m(cfg),1938m(user);physmap-flash.0:512k(b),4m(k),30m(u),28m(r)" + +Flashing U-Boot +-------------------------------- + +There are two options: the original bootloader in NAND can be replaced with u-boot, +or u-boot can be stored on the NOR flash without erasing the delivered bootloader. +The boot storage can be select using the switches on the personality board (SW1-SW2) and +on the DEBUG board (SW4-SW10). + +The second option is to be preferred if you have not a JTAG debugger. If something +goes wrong flashing the bootloader, it is always possible to recover the board +booting from the other device. + +Replacing the bootloader on the NAND +-------------------------------------- +To replace RedBoot with U-Boot, the easy way is to do this in linux. +Start the kernel with the suggested options. Make sure to have set the +mtdparts exactly as described, because this matches the layout on the +mx35pdk. + +You should see in your boot log the following entries for the NAND +flash: + +5 cmdlinepart partitions found on MTD device mxc_nand +Creating 5 MTD partitions on "mxc_nand": +0x000000000000-0x000000100000 : "boot" +0x000000100000-0x000000600000 : "linux" +0x000000600000-0x000006600000 : "root" +0x000006600000-0x000006e00000 : "cfg" +0x000006e00000-0x000080000000 : "user" + +You can use the utilities flash_eraseall and nandwrite to put +u-boot on the NAND. The bootloader is marked as "boot", and 1MB is +reserved. If everything is correct, this partition is accessed as +/dev/mtd4. However, check if it is correct with "cat /proc/mtd" and +get the device node from the partition name: + +$ cat /proc/mtd | grep boot + +I suggest you try the utilities on a different partition to be sure +if everything works correctly. If not, and you remove RedBoot, you have to +reinstall it using the ATK tool as suggested by Freescale, or using a JTAG debugger. + +I report the versions of the utilities I used (they are provided with ELDK): + +-bash-3.2# nandwrite --version +nandwrite $Revision: 1.32 $ + +flash_eraseall --version +flash_eraseall $Revision: 1.22 $ + +nandwrite reports a warning if the file to be saved is not sector aligned. +This should have no consequences, but I preferred to pad u-boot.bin +to get no problem at all. +$ dd if=/dev/zero of=zeros bs=1 count=74800 +$ cat u-boot.bin zeros > u-boot-padded.bin + +To erase the partition: +$ flash_eraseall /dev/mtd4 + +Writing u-boot: + +$ nandwrite /dev/mtd4 u-boot-padded.bin + +Now U-Boot is stored on the booting partition. + +To boot from NAND, you have to select the switches as follows: + +Personality board + SW2 1, 4, 5 on + 2, 3, 6, 7, 8 off + SW1 all off + +Debug Board: + SW5 0 + SW6 0 + SW7 0 + SW8 1 + SW9 1 + SW10 0 + + +Saving U-Boot in the NOR flash +--------------------------------- + +The procedure to save in the NOR flash is quite the same as to write into the NAND. + +Check the partition for boot in the NOR flash. Setting the mtdparts as reported, +the boot partition should be /dev/mtd0. + +Creating 6 MTD partitions on "mxc_nor_flash.0": +0x00000000-0x00080000 : "Bootloader" +0x00080000-0x00480000 : "nor.Kernel" +0x00480000-0x02280000 : "nor.userfs" +0x02280000-0x03e80000 : "nor.rootfs" +0x01fe0000-0x01fe3000 : "FIS directory" +0x01fff000-0x04000000 : "Redboot config" + +To erase the whole partition: +$ flash_eraseall /dev/mtd0 + +Writing u-boot: +dd if=u-boot.bin of=/dev/mtd0 + +To boot from NOR, you have to select the switches as follows: + +Personality board + SW2 all off + SW1 all off + +Debug Board: + SW5 0 + SW6 0 + SW7 0 + SW8 1 + SW9 1 + SW10 0 diff --git a/include/configs/mx35pdk.h b/include/configs/mx35pdk.h new file mode 100644 index 0000000..e3f7380 --- /dev/null +++ b/include/configs/mx35pdk.h @@ -0,0 +1,269 @@ +/* + * Copyright (C) 2007, Guennadi Liakhovetski lg@denx.de + * + * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * (C) Copyright 2010, Stefano Babic sbabic@denx.de + * + * Configuration for the MX35pdk Freescale board. + * + * 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 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include <asm/arch/imx-regs.h> + + /* High Level Configuration Options */ +#define CONFIG_ARM1136 /* This is an arm1136 CPU core */ +#define CONFIG_MX35 +#define CONFIG_MX35_HCLK_FREQ 24000000 + +#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_DISPLAY_BOARDINFO + +#define CONFIG_SYS_64BIT_VSPRINTF + +#define CONFIG_BOARD_EARLY_INIT_F +#define BOARD_LATE_INIT + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_REVISION_TAG 1 +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 + +/* + * Size of malloc() pool + */ +#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 1024 * 1024) + +/* + * Hardware drivers + */ +#define CONFIG_HARD_I2C +#define CONFIG_I2C_MXC +#define CONFIG_SYS_I2C_MX35_PORT1 +#define CONFIG_SYS_I2C_SPEED 100000 +#define CONFIG_SYS_I2C_SLAVE 0xfe +#define CONFIG_MXC_SPI + + +/* + * PMIC Configs + */ +#define CONFIG_FSL_PMIC +#define CONFIG_FSL_PMIC_I2C +#define CONFIG_SYS_FSL_PMIC_I2C_ADDR 0x08 + +/* + * MFD MC9SDZ60 + */ +#define CONFIG_FSL_MC9SDZ60 +#define CONFIG_SYS_FSL_MC9SDZ60_I2C_ADDR 0x69 + +/* + * UART (console) + */ +#define CONFIG_MXC_UART +#define CONFIG_SYS_MX35_UART1 + +/* allow to overwrite serial and ethaddr */ +#define CONFIG_ENV_OVERWRITE +#define CONFIG_CONS_INDEX 1 +#define CONFIG_BAUDRATE 115200 +#define CONFIG_SYS_BAUDRATE_TABLE {9600, 19200, 38400, 57600, 115200} + +/* + * Command definition + */ + +#include <config_cmd_default.h> + +#define CONFIG_CMD_PING +#define CONFIG_CMD_DHCP +#define CONFIG_BOOTP_SUBNETMASK +#define CONFIG_BOOTP_GATEWAY +#define CONFIG_BOOTP_DNS + +#define CONFIG_CMD_NAND + +#define CONFIG_CMD_I2C +#define CONFIG_CMD_SPI +#define CONFIG_CMD_MII +#define CONFIG_CMD_NET +#define CONFIG_NET_RETRY_COUNT 100 + +#define CONFIG_BOOTDELAY 3 + +#define CONFIG_LOADADDR 0x80800000 /* loadaddr env var */ + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "netdev=eth0\0" \ + "ethprime=smc911x\0" \ + "uboot_addr=0xa0000000\0" \ + "uboot=u-boot.bin\0" \ + "kernel_addr_r=0x80800000\0" \ + "kernel=uImage\0" \ + "nfsroot=/opt/eldk/arm\0" \ + "addtty=setenv bootargs ${bootargs} " \ + "console=ttymxc0,${baudrate}\0" \ + "addmtd=setenv bootargs ${bootargs} ${mtdparts}\0" \ + "bootcmd=run bootcmd_net\0" \ + "bootcmd_net=tftp ${kernel_addr_r} ${bootfile};" \ + "run nfsargs addip_dyn addtty addmtd;" \ + "bootm\0" \ + "prg_uboot=tftpboot ${loadaddr} ${uboot};" \ + "protect off ${uboot_addr} 0xa003ffff;" \ + "erase ${uboot_addr} 0xa003ffff;" \ + "cp.b ${loadaddr} ${uboot_addr} ${filesize};" \ + "setenv filesize;saveenv\0" + +/* + * Ethernet on the debug board (SMC911) + */ +#define CONFIG_SMC911X +#define CONFIG_SMC911X_16_BIT 1 +#define CONFIG_SMC911X_BASE CS5_BASE_ADDR + +#define CONFIG_HAS_ETH1 +#define CONFIG_NET_MULTI +#define CONFIG_ETHPRIME + +/* + * Ethernet on SOC (FEC) + */ +#define CONFIG_FEC_MXC +#define IMX_FEC_BASE FEC_BASE_ADDR +#define CONFIG_FEC_MXC_PHYADDR 0x1F + +#define CONFIG_MII +#define CONFIG_DISCOVER_PHY + +#define CONFIG_ARP_TIMEOUT 200UL + +/* + * Miscellaneous configurable options + */ +#define CONFIG_SYS_LONGHELP /* undef to save memory */ +#define CONFIG_SYS_PROMPT "MX35 U-Boot > " +#define CONFIG_CMDLINE_EDITING 1 +#define CONFIG_SYS_HUSH_PARSER 1 /* Use the HUSH parser */ +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> " + +#define CONFIG_AUTO_COMPLETE +#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ +/* Print Buffer Size */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16) +#define CONFIG_SYS_MAXARGS 16 /* max number of command args */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */ + +#define CONFIG_SYS_MEMTEST_START 0 /* memtest works on */ +#define CONFIG_SYS_MEMTEST_END 0x10000 + +#undef CONFIG_SYS_CLKS_IN_HZ /* everything, incl board info, in Hz */ + +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR + +#define CONFIG_SYS_HZ 1000 + + +/* + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128 * 1024) /* regular stack */ + +/* + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 1 +#define PHYS_SDRAM_1 CSD0_BASE_ADDR +#define PHYS_SDRAM_1_SIZE (128 * 1024 * 1024) +#define iomem_valid_addr(addr, size) \ + (addr >= PHYS_SDRAM_1 && addr <= (PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE)) + +#define CONFIG_SYS_SDRAM_BASE CSD0_BASE_ADDR +#define CONFIG_SYS_INIT_RAM_ADDR (IRAM_BASE_ADDR + 0x10000) +#define CONFIG_SYS_INIT_RAM_SIZE (IRAM_SIZE / 2) +#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - \ + GENERATED_GBL_DATA_SIZE) +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \ + CONFIG_SYS_GBL_DATA_OFFSET) + +/* + * MTD Command for mtdparts + */ +#define CONFIG_CMD_MTDPARTS +#define CONFIG_MTD_DEVICE +#define CONFIG_FLASH_CFI_MTD +#define CONFIG_MTD_PARTITIONS +#define MTDIDS_DEFAULT "nand0=mxc_nand,nor0=physmap-flash.0" +#define MTDPARTS_DEFAULT "mtdparts=mxc_nand:1m(boot),5m(linux)," \ + "96m(root),8m(cfg),1938m(user);" \ + "physmap-flash.0:512k(b),4m(k),30m(u),28m(r)" + +/* + * FLASH and environment organization + */ +#define CONFIG_SYS_FLASH_BASE CS0_BASE_ADDR +#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ +#define CONFIG_SYS_MAX_FLASH_SECT 512 /* max number of sectors on one chip */ +/* Monitor at beginning of flash */ +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE +#define CONFIG_SYS_MONITOR_LEN (512 * 1024) + +#define CONFIG_ENV_SECT_SIZE (128 * 1024) +#define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE + +/* Address and size of Redundant Environment Sector */ +#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) +#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE + +#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE + \ + CONFIG_SYS_MONITOR_LEN) + +#define CONFIG_ENV_IS_IN_FLASH + +#if defined(CONFIG_FSL_ENV_IN_NAND) + #define CONFIG_ENV_IS_IN_NAND + #define CONFIG_ENV_OFFSET (1024 * 1024) +#endif + +/* + * CFI FLASH driver setup + */ +#define CONFIG_SYS_FLASH_CFI /* Flash memory is CFI compliant */ +#define CONFIG_FLASH_CFI_DRIVER + +/* A non-standard buffered write algorithm */ +#define CONFIG_FLASH_SPANSION_S29WS_N +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* faster */ +#define CONFIG_SYS_FLASH_PROTECTION /* Use hardware sector protection */ + +/* + * NAND FLASH driver setup + */ +#define CONFIG_NAND_MXC +#define CONFIG_NAND_MXC_V1_1 +#define CONFIG_MXC_NAND_REGS_BASE (NFC_BASE_ADDR) +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE (NFC_BASE_ADDR) +#define CONFIG_MXC_NAND_HWECC +#define CONFIG_SYS_NAND_LARGEPAGE + +#endif /* __CONFIG_H */