From bc3a4a53a77308d61b8b3dd366108575b620d3fe Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 5 Apr 2010 01:50:57 +0200 Subject: PXA: ZipitZ2 support This patch adds support for Aeronix Zipit Z2 handheld. Signed-off-by: Marek Vasut --- board/zipitz2/Makefile | 54 +++++++++++ board/zipitz2/config.mk | 1 + board/zipitz2/lowlevel_init.S | 40 ++++++++ board/zipitz2/u-boot.lds | 56 +++++++++++ board/zipitz2/zipitz2.c | 213 ++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 364 insertions(+) create mode 100644 board/zipitz2/Makefile create mode 100644 board/zipitz2/config.mk create mode 100644 board/zipitz2/lowlevel_init.S create mode 100644 board/zipitz2/u-boot.lds create mode 100644 board/zipitz2/zipitz2.c (limited to 'board/zipitz2') diff --git a/board/zipitz2/Makefile b/board/zipitz2/Makefile new file mode 100644 index 0000000000..267383550a --- /dev/null +++ b/board/zipitz2/Makefile @@ -0,0 +1,54 @@ + +# +# Copyright (C) 2009 +# Marek Vasut +# +# Heavily based on pxa255_idp platform +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := zipitz2.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) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/zipitz2/config.mk b/board/zipitz2/config.mk new file mode 100644 index 0000000000..1d650acd99 --- /dev/null +++ b/board/zipitz2/config.mk @@ -0,0 +1 @@ +TEXT_BASE = 0xa1000000 diff --git a/board/zipitz2/lowlevel_init.S b/board/zipitz2/lowlevel_init.S new file mode 100644 index 0000000000..82a52e84c4 --- /dev/null +++ b/board/zipitz2/lowlevel_init.S @@ -0,0 +1,40 @@ +/* + * Aeronix Zipit Z2 Lowlevel Hardware Initialization + * + * Copyright (C) 2010 Marek Vasut + * + * + * 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 +#include +#include +#include + +.globl lowlevel_init +lowlevel_init: + pxa_gpio_setup + pxa_wait_ticks 0x8000 + pxa_mem_setup + pxa_wakeup + pxa_intr_setup + pxa_clock_setup + + mov pc, lr diff --git a/board/zipitz2/u-boot.lds b/board/zipitz2/u-boot.lds new file mode 100644 index 0000000000..fb4358beea --- /dev/null +++ b/board/zipitz2/u-boot.lds @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2000-2005 + * Wolfgang Denk, DENX Software Engineering, wd@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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + cpu/pxa/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss (NOLOAD) : { *(.bss) . = ALIGN(4); } + _end = .; +} diff --git a/board/zipitz2/zipitz2.c b/board/zipitz2/zipitz2.c new file mode 100644 index 0000000000..14d1d763b1 --- /dev/null +++ b/board/zipitz2/zipitz2.c @@ -0,0 +1,213 @@ +/* + * Copyright (C) 2009 + * Marek Vasut + * + * Heavily based on pxa255_idp platform + * + * 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 +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_CMD_SPI +void lcd_start(void); +#else +inline void lcd_start(void) {}; +#endif + +/* + * Miscelaneous platform dependent initialisations + */ + +int board_init (void) +{ + /* memory and cpu-speed are setup before relocation */ + /* so we do _nothing_ here */ + + /* arch number of Lubbock-Board */ + gd->bd->bi_arch_number = MACH_TYPE_ZIPIT2; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0xa0000100; + + /* Enable LCD */ + lcd_start(); + + return 0; +} + +int board_late_init(void) +{ + setenv("stdout", "serial"); + setenv("stderr", "serial"); + return 0; +} + +struct serial_device *default_serial_console (void) +{ + return &serial_stuart_device; +} + +int dram_init (void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return 0; +} + +#ifdef CONFIG_CMD_SPI + +struct { + unsigned char reg; + unsigned short data; + unsigned char mdelay; +} lcd_data[] = { + { 0x07, 0x0000, 0 }, + { 0x13, 0x0000, 10 }, + { 0x11, 0x3004, 0 }, + { 0x14, 0x200F, 0 }, + { 0x10, 0x1a20, 0 }, + { 0x13, 0x0040, 50 }, + { 0x13, 0x0060, 0 }, + { 0x13, 0x0070, 200 }, + { 0x01, 0x0127, 0 }, + { 0x02, 0x0700, 0 }, + { 0x03, 0x1030, 0 }, + { 0x08, 0x0208, 0 }, + { 0x0B, 0x0620, 0 }, + { 0x0C, 0x0110, 0 }, + { 0x30, 0x0120, 0 }, + { 0x31, 0x0127, 0 }, + { 0x32, 0x0000, 0 }, + { 0x33, 0x0503, 0 }, + { 0x34, 0x0727, 0 }, + { 0x35, 0x0124, 0 }, + { 0x36, 0x0706, 0 }, + { 0x37, 0x0701, 0 }, + { 0x38, 0x0F00, 0 }, + { 0x39, 0x0F00, 0 }, + { 0x40, 0x0000, 0 }, + { 0x41, 0x0000, 0 }, + { 0x42, 0x013f, 0 }, + { 0x43, 0x0000, 0 }, + { 0x44, 0x013f, 0 }, + { 0x45, 0x0000, 0 }, + { 0x46, 0xef00, 0 }, + { 0x47, 0x013f, 0 }, + { 0x48, 0x0000, 0 }, + { 0x07, 0x0015, 30 }, + { 0x07, 0x0017, 0 }, + { 0x20, 0x0000, 0 }, + { 0x21, 0x0000, 0 }, + { 0x22, 0x0000, 0 }, +}; + +void zipitz2_spi_sda(int set) +{ + /* GPIO 13 */ + if (set) + GPSR0 = (1 << 13); + else + GPCR0 = (1 << 13); +} + +void zipitz2_spi_scl(int set) +{ + /* GPIO 22 */ + if (set) + GPCR0 = (1 << 22); + else + GPSR0 = (1 << 22); +} + +unsigned char zipitz2_spi_read(void) +{ + /* GPIO 40 */ + return !!(GPLR1 & (1 << 8)); +} + +int spi_cs_is_valid(unsigned int bus, unsigned int cs) +{ + /* Always valid */ + return 1; +} + +void spi_cs_activate(struct spi_slave *slave) +{ + /* GPIO 88 low */ + GPCR2 = (1 << 24); +} + +void spi_cs_deactivate(struct spi_slave *slave) +{ + /* GPIO 88 high */ + GPSR2 = (1 << 24); + +} + +void lcd_start(void) +{ + int i; + unsigned char reg[3] = { 0x74, 0x00, 0 }; + unsigned char data[3] = { 0x76, 0, 0 }; + unsigned char dummy[3] = { 0, 0, 0 }; + + /* PWM2 AF */ + GAFR0_L |= 0x00800000; + /* Enable clock to all PWM */ + CKEN |= 0x3; + /* Configure PWM2 */ + PWM_CTRL2 = 0x4f; + PWM_PWDUTY2 = 0x2ff; + PWM_PERVAL2 = 792; + + /* Toggle the reset pin to reset the LCD */ + GPSR0 = (1 << 19); + udelay(100000); + GPCR0 = (1 << 19); + udelay(20000); + GPSR0 = (1 << 19); + udelay(20000); + + /* Program the LCD init sequence */ + for (i = 0; i < sizeof(lcd_data) / sizeof(lcd_data[0]); i++) { + reg[0] = 0x74; + reg[1] = 0x0; + reg[2] = lcd_data[i].reg; + spi_xfer(NULL, 24, reg, dummy, SPI_XFER_BEGIN | SPI_XFER_END); + + data[0] = 0x76; + data[1] = lcd_data[i].data >> 8; + data[2] = lcd_data[i].data & 0xff; + spi_xfer(NULL, 24, data, dummy, SPI_XFER_BEGIN | SPI_XFER_END); + + if (lcd_data[i].mdelay) + udelay(lcd_data[i].mdelay * 1000); + } + + GPSR0 = (1 << 11); +} +#endif -- cgit v1.2.1