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-rw-r--r--u-boot/arch/arm/cpu/pxa/Makefile52
-rw-r--r--u-boot/arch/arm/cpu/pxa/config.mk33
-rw-r--r--u-boot/arch/arm/cpu/pxa/cpu.c320
-rw-r--r--u-boot/arch/arm/cpu/pxa/i2c.c469
-rw-r--r--u-boot/arch/arm/cpu/pxa/pxafb.c652
-rw-r--r--u-boot/arch/arm/cpu/pxa/start.S603
-rw-r--r--u-boot/arch/arm/cpu/pxa/timer.c129
-rw-r--r--u-boot/arch/arm/cpu/pxa/u-boot.lds78
-rw-r--r--u-boot/arch/arm/cpu/pxa/usb.c105
9 files changed, 2441 insertions, 0 deletions
diff --git a/u-boot/arch/arm/cpu/pxa/Makefile b/u-boot/arch/arm/cpu/pxa/Makefile
new file mode 100644
index 0000000..49a6ed3
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/Makefile
@@ -0,0 +1,52 @@
+#
+# (C) Copyright 2000-2006
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(CPU).o
+
+START = start.o
+
+COBJS += cpu.o
+COBJS += i2c.o
+COBJS += pxafb.o
+COBJS += timer.o
+COBJS += usb.o
+
+SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/u-boot/arch/arm/cpu/pxa/config.mk b/u-boot/arch/arm/cpu/pxa/config.mk
new file mode 100644
index 0000000..a05d69c
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/config.mk
@@ -0,0 +1,33 @@
+#
+# (C) Copyright 2002
+# Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+# Marius Groeger <mgroeger@sysgo.de>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
+
+PLATFORM_CPPFLAGS += -march=armv5te -mtune=xscale
+# =========================================================================
+#
+# Supply options according to compiler version
+#
+# ========================================================================
+PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
diff --git a/u-boot/arch/arm/cpu/pxa/cpu.c b/u-boot/arch/arm/cpu/pxa/cpu.c
new file mode 100644
index 0000000..7d49cbb
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/cpu.c
@@ -0,0 +1,320 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.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
+ */
+
+/*
+ * CPU specific code
+ */
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <command.h>
+#include <common.h>
+#include <asm/arch/pxa-regs.h>
+
+static void cache_flush(void);
+
+int cleanup_before_linux (void)
+{
+ /*
+ * this function is called just before we call linux
+ * it prepares the processor for linux
+ *
+ * just disable everything that can disturb booting linux
+ */
+
+ disable_interrupts ();
+
+ /* turn off I-cache */
+ icache_disable();
+ dcache_disable();
+
+ /* flush I-cache */
+ cache_flush();
+
+ return (0);
+}
+
+/* flush I/D-cache */
+static void cache_flush (void)
+{
+ unsigned long i = 0;
+
+ asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (i));
+}
+
+#ifndef CONFIG_CPU_MONAHANS
+void set_GPIO_mode(int gpio_mode)
+{
+ int gpio = gpio_mode & GPIO_MD_MASK_NR;
+ int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
+ int val;
+
+ /* This below changes direction setting of GPIO "gpio" */
+ val = readl(GPDR(gpio));
+
+ if (gpio_mode & GPIO_MD_MASK_DIR)
+ val |= GPIO_bit(gpio);
+ else
+ val &= ~GPIO_bit(gpio);
+
+ writel(val, GPDR(gpio));
+
+ /* This below updates only AF of GPIO "gpio" */
+ val = readl(GAFR(gpio));
+ val &= ~(0x3 << (((gpio) & 0xf) * 2));
+ val |= fn << (((gpio) & 0xf) * 2);
+ writel(val, GAFR(gpio));
+}
+#endif /* CONFIG_CPU_MONAHANS */
+
+void pxa_wait_ticks(int ticks)
+{
+ writel(0, OSCR);
+ while (readl(OSCR) < ticks)
+ asm volatile("":::"memory");
+}
+
+inline void writelrb(uint32_t val, uint32_t addr)
+{
+ writel(val, addr);
+ asm volatile("":::"memory");
+ readl(addr);
+ asm volatile("":::"memory");
+}
+
+void pxa_dram_init(void)
+{
+ uint32_t tmp;
+ int i;
+ /*
+ * 1) Initialize Asynchronous static memory controller
+ */
+
+ writelrb(CONFIG_SYS_MSC0_VAL, MSC0);
+ writelrb(CONFIG_SYS_MSC1_VAL, MSC1);
+ writelrb(CONFIG_SYS_MSC2_VAL, MSC2);
+ /*
+ * 2) Initialize Card Interface
+ */
+
+ /* MECR: Memory Expansion Card Register */
+ writelrb(CONFIG_SYS_MECR_VAL, MECR);
+ /* MCMEM0: Card Interface slot 0 timing */
+ writelrb(CONFIG_SYS_MCMEM0_VAL, MCMEM0);
+ /* MCMEM1: Card Interface slot 1 timing */
+ writelrb(CONFIG_SYS_MCMEM1_VAL, MCMEM1);
+ /* MCATT0: Card Interface Attribute Space Timing, slot 0 */
+ writelrb(CONFIG_SYS_MCATT0_VAL, MCATT0);
+ /* MCATT1: Card Interface Attribute Space Timing, slot 1 */
+ writelrb(CONFIG_SYS_MCATT1_VAL, MCATT1);
+ /* MCIO0: Card Interface I/O Space Timing, slot 0 */
+ writelrb(CONFIG_SYS_MCIO0_VAL, MCIO0);
+ /* MCIO1: Card Interface I/O Space Timing, slot 1 */
+ writelrb(CONFIG_SYS_MCIO1_VAL, MCIO1);
+
+ /*
+ * 3) Configure Fly-By DMA register
+ */
+
+ writelrb(CONFIG_SYS_FLYCNFG_VAL, FLYCNFG);
+
+ /*
+ * 4) Initialize Timing for Sync Memory (SDCLK0)
+ */
+
+ /*
+ * Before accessing MDREFR we need a valid DRI field, so we set
+ * this to power on defaults + DRI field.
+ */
+
+ /* Read current MDREFR config and zero out DRI */
+ tmp = readl(MDREFR) & ~0xfff;
+ /* Add user-specified DRI */
+ tmp |= CONFIG_SYS_MDREFR_VAL & 0xfff;
+ /* Configure important bits */
+ tmp |= MDREFR_K0RUN | MDREFR_SLFRSH;
+ tmp &= ~(MDREFR_APD | MDREFR_E1PIN);
+
+ /* Write MDREFR back */
+ writelrb(tmp, MDREFR);
+
+ /*
+ * 5) Initialize Synchronous Static Memory (Flash/Peripherals)
+ */
+
+ /* Initialize SXCNFG register. Assert the enable bits.
+ *
+ * Write SXMRS to cause an MRS command to all enabled banks of
+ * synchronous static memory. Note that SXLCR need not be written
+ * at this time.
+ */
+ writelrb(CONFIG_SYS_SXCNFG_VAL, SXCNFG);
+
+ /*
+ * 6) Initialize SDRAM
+ */
+
+ writelrb(CONFIG_SYS_MDREFR_VAL & ~MDREFR_SLFRSH, MDREFR);
+ writelrb(CONFIG_SYS_MDREFR_VAL | MDREFR_E1PIN, MDREFR);
+
+ /*
+ * 7) Write MDCNFG with MDCNFG:DEx deasserted (set to 0), to configure
+ * but not enable each SDRAM partition pair.
+ */
+
+ writelrb(CONFIG_SYS_MDCNFG_VAL &
+ ~(MDCNFG_DE0 | MDCNFG_DE1 | MDCNFG_DE2 | MDCNFG_DE3), MDCNFG);
+ /* Wait for the clock to the SDRAMs to stabilize, 100..200 usec. */
+ pxa_wait_ticks(0x300);
+
+ /*
+ * 8) Trigger a number (usually 8) refresh cycles by attempting
+ * non-burst read or write accesses to disabled SDRAM, as commonly
+ * specified in the power up sequence documented in SDRAM data
+ * sheets. The address(es) used for this purpose must not be
+ * cacheable.
+ */
+ for (i = 9; i >= 0; i--) {
+ writel(i, 0xa0000000);
+ asm volatile("":::"memory");
+ }
+ /*
+ * 9) Write MDCNFG with enable bits asserted (MDCNFG:DEx set to 1).
+ */
+
+ tmp = CONFIG_SYS_MDCNFG_VAL &
+ (MDCNFG_DE0 | MDCNFG_DE1 | MDCNFG_DE2 | MDCNFG_DE3);
+ tmp |= readl(MDCNFG);
+ writelrb(tmp, MDCNFG);
+
+ /*
+ * 10) Write MDMRS.
+ */
+
+ writelrb(CONFIG_SYS_MDMRS_VAL, MDMRS);
+
+ /*
+ * 11) Enable APD
+ */
+
+ if (CONFIG_SYS_MDREFR_VAL & MDREFR_APD) {
+ tmp = readl(MDREFR);
+ tmp |= MDREFR_APD;
+ writelrb(tmp, MDREFR);
+ }
+}
+
+void pxa_gpio_setup(void)
+{
+ writel(CONFIG_SYS_GPSR0_VAL, GPSR0);
+ writel(CONFIG_SYS_GPSR1_VAL, GPSR1);
+ writel(CONFIG_SYS_GPSR2_VAL, GPSR2);
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+ writel(CONFIG_SYS_GPSR3_VAL, GPSR3);
+#endif
+
+ writel(CONFIG_SYS_GPCR0_VAL, GPCR0);
+ writel(CONFIG_SYS_GPCR1_VAL, GPCR1);
+ writel(CONFIG_SYS_GPCR2_VAL, GPCR2);
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+ writel(CONFIG_SYS_GPCR3_VAL, GPCR3);
+#endif
+
+ writel(CONFIG_SYS_GPDR0_VAL, GPDR0);
+ writel(CONFIG_SYS_GPDR1_VAL, GPDR1);
+ writel(CONFIG_SYS_GPDR2_VAL, GPDR2);
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+ writel(CONFIG_SYS_GPDR3_VAL, GPDR3);
+#endif
+
+ writel(CONFIG_SYS_GAFR0_L_VAL, GAFR0_L);
+ writel(CONFIG_SYS_GAFR0_U_VAL, GAFR0_U);
+ writel(CONFIG_SYS_GAFR1_L_VAL, GAFR1_L);
+ writel(CONFIG_SYS_GAFR1_U_VAL, GAFR1_U);
+ writel(CONFIG_SYS_GAFR2_L_VAL, GAFR2_L);
+ writel(CONFIG_SYS_GAFR2_U_VAL, GAFR2_U);
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+ writel(CONFIG_SYS_GAFR3_L_VAL, GAFR3_L);
+ writel(CONFIG_SYS_GAFR3_U_VAL, GAFR3_U);
+#endif
+
+ writel(CONFIG_SYS_PSSR_VAL, PSSR);
+}
+
+void pxa_interrupt_setup(void)
+{
+ writel(0, ICLR);
+ writel(0, ICMR);
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+ writel(0, ICLR2);
+ writel(0, ICMR2);
+#endif
+}
+
+void pxa_clock_setup(void)
+{
+#ifndef CONFIG_CPU_MONAHANS
+ writel(CONFIG_SYS_CKEN, CKEN);
+ writel(CONFIG_SYS_CCCR, CCCR);
+ asm volatile("mcr p14, 0, %0, c6, c0, 0"::"r"(2));
+#else
+/* Set CKENA/CKENB/ACCR for MH */
+#endif
+
+ /* enable the 32Khz oscillator for RTC and PowerManager */
+ writel(OSCC_OON, OSCC);
+ while(!(readl(OSCC) & OSCC_OOK))
+ asm volatile("":::"memory");
+}
+
+void pxa_wakeup(void)
+{
+ uint32_t rcsr;
+
+ rcsr = readl(RCSR);
+ writel(rcsr & (RCSR_GPR | RCSR_SMR | RCSR_WDR | RCSR_HWR), RCSR);
+
+ /* Wakeup */
+ if (rcsr & RCSR_SMR) {
+ writel(PSSR_PH, PSSR);
+ pxa_dram_init();
+ icache_disable();
+ dcache_disable();
+ asm volatile("mov pc, %0"::"r"(readl(PSSR)));
+ }
+}
+
+int arch_cpu_init(void)
+{
+ pxa_gpio_setup();
+/* pxa_wait_ticks(0x8000); */
+ pxa_wakeup();
+ pxa_interrupt_setup();
+ pxa_clock_setup();
+ return 0;
+}
diff --git a/u-boot/arch/arm/cpu/pxa/i2c.c b/u-boot/arch/arm/cpu/pxa/i2c.c
new file mode 100644
index 0000000..7aa49ae
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/i2c.c
@@ -0,0 +1,469 @@
+/*
+ * (C) Copyright 2000
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
+ *
+ * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2003 Pengutronix e.K.
+ * Robert Schwebel <r.schwebel@pengutronix.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
+ *
+ * Back ported to the 8xx platform (from the 8260 platform) by
+ * Murray.Jensen@cmst.csiro.au, 27-Jan-01.
+ */
+
+/* FIXME: this file is PXA255 specific! What about other XScales? */
+
+#include <common.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_HARD_I2C
+
+/*
+ * - CONFIG_SYS_I2C_SPEED
+ * - I2C_PXA_SLAVE_ADDR
+ */
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <i2c.h>
+
+/*#define DEBUG_I2C 1 /###* activate local debugging output */
+#define I2C_PXA_SLAVE_ADDR 0x1 /* slave pxa unit address */
+
+#if (CONFIG_SYS_I2C_SPEED == 400000)
+#define I2C_ICR_INIT (ICR_FM | ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
+#else
+#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
+#endif
+
+#define I2C_ISR_INIT 0x7FF
+
+#ifdef DEBUG_I2C
+#define PRINTD(x) printf x
+#else
+#define PRINTD(x)
+#endif
+
+
+/* Shall the current transfer have a start/stop condition? */
+#define I2C_COND_NORMAL 0
+#define I2C_COND_START 1
+#define I2C_COND_STOP 2
+
+/* Shall the current transfer be ack/nacked or being waited for it? */
+#define I2C_ACKNAK_WAITACK 1
+#define I2C_ACKNAK_SENDACK 2
+#define I2C_ACKNAK_SENDNAK 4
+
+/* Specify who shall transfer the data (master or slave) */
+#define I2C_READ 0
+#define I2C_WRITE 1
+
+/* All transfers are described by this data structure */
+struct i2c_msg {
+ u8 condition;
+ u8 acknack;
+ u8 direction;
+ u8 data;
+};
+
+
+/**
+ * i2c_pxa_reset: - reset the host controller
+ *
+ */
+
+static void i2c_reset( void )
+{
+ writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */
+ writel(readl(ICR) | ICR_UR, ICR); /* reset the unit */
+ udelay(100);
+ writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */
+#ifdef CONFIG_CPU_MONAHANS
+ /* | CKENB_1_PWM1 | CKENB_0_PWM0); */
+ writel(readl(CKENB) | (CKENB_4_I2C), CKENB);
+#else /* CONFIG_CPU_MONAHANS */
+ /* set the global I2C clock on */
+ writel(readl(CKEN) | CKEN14_I2C, CKEN);
+#endif
+ writel(I2C_PXA_SLAVE_ADDR, ISAR); /* set our slave address */
+ writel(I2C_ICR_INIT, ICR); /* set control reg values */
+ writel(I2C_ISR_INIT, ISR); /* set clear interrupt bits */
+ writel(readl(ICR) | ICR_IUE, ICR); /* enable unit */
+ udelay(100);
+}
+
+
+/**
+ * i2c_isr_set_cleared: - wait until certain bits of the I2C status register
+ * are set and cleared
+ *
+ * @return: 1 in case of success, 0 means timeout (no match within 10 ms).
+ */
+static int i2c_isr_set_cleared( unsigned long set_mask, unsigned long cleared_mask )
+{
+ int timeout = 10000;
+
+ while( ((ISR & set_mask)!=set_mask) || ((ISR & cleared_mask)!=0) ){
+ udelay( 10 );
+ if( timeout-- < 0 ) return 0;
+ }
+
+ return 1;
+}
+
+
+/**
+ * i2c_transfer: - Transfer one byte over the i2c bus
+ *
+ * This function can tranfer a byte over the i2c bus in both directions.
+ * It is used by the public API functions.
+ *
+ * @return: 0: transfer successful
+ * -1: message is empty
+ * -2: transmit timeout
+ * -3: ACK missing
+ * -4: receive timeout
+ * -5: illegal parameters
+ * -6: bus is busy and couldn't be aquired
+ */
+int i2c_transfer(struct i2c_msg *msg)
+{
+ int ret;
+
+ if (!msg)
+ goto transfer_error_msg_empty;
+
+ switch(msg->direction) {
+
+ case I2C_WRITE:
+
+ /* check if bus is not busy */
+ if (!i2c_isr_set_cleared(0,ISR_IBB))
+ goto transfer_error_bus_busy;
+
+ /* start transmission */
+ writel(readl(ICR) & ~ICR_START, ICR);
+ writel(readl(ICR) & ~ICR_STOP, ICR);
+ writel(msg->data, IDBR);
+ if (msg->condition == I2C_COND_START)
+ writel(readl(ICR) | ICR_START, ICR);
+ if (msg->condition == I2C_COND_STOP)
+ writel(readl(ICR) | ICR_STOP, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDNAK)
+ writel(readl(ICR) | ICR_ACKNAK, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDACK)
+ writel(readl(ICR) & ~ICR_ACKNAK, ICR);
+ writel(readl(ICR) & ~ICR_ALDIE, ICR);
+ writel(readl(ICR) | ICR_TB, ICR);
+
+ /* transmit register empty? */
+ if (!i2c_isr_set_cleared(ISR_ITE,0))
+ goto transfer_error_transmit_timeout;
+
+ /* clear 'transmit empty' state */
+ writel(readl(ISR) | ISR_ITE, ISR);
+
+ /* wait for ACK from slave */
+ if (msg->acknack == I2C_ACKNAK_WAITACK)
+ if (!i2c_isr_set_cleared(0,ISR_ACKNAK))
+ goto transfer_error_ack_missing;
+ break;
+
+ case I2C_READ:
+
+ /* check if bus is not busy */
+ if (!i2c_isr_set_cleared(0,ISR_IBB))
+ goto transfer_error_bus_busy;
+
+ /* start receive */
+ writel(readl(ICR) & ~ICR_START, ICR);
+ writel(readl(ICR) & ~ICR_STOP, ICR);
+ if (msg->condition == I2C_COND_START)
+ writel(readl(ICR) | ICR_START, ICR);
+ if (msg->condition == I2C_COND_STOP)
+ writel(readl(ICR) | ICR_STOP, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDNAK)
+ writel(readl(ICR) | ICR_ACKNAK, ICR);
+ if (msg->acknack == I2C_ACKNAK_SENDACK)
+ writel(readl(ICR) & ~ICR_ACKNAK, ICR);
+ writel(readl(ICR) & ~ICR_ALDIE, ICR);
+ writel(readl(ICR) | ICR_TB, ICR);
+
+ /* receive register full? */
+ if (!i2c_isr_set_cleared(ISR_IRF,0))
+ goto transfer_error_receive_timeout;
+
+ msg->data = readl(IDBR);
+
+ /* clear 'receive empty' state */
+ writel(readl(ISR) | ISR_IRF, ISR);
+
+ break;
+
+ default:
+
+ goto transfer_error_illegal_param;
+
+ }
+
+ return 0;
+
+transfer_error_msg_empty:
+ PRINTD(("i2c_transfer: error: 'msg' is empty\n"));
+ ret = -1; goto i2c_transfer_finish;
+
+transfer_error_transmit_timeout:
+ PRINTD(("i2c_transfer: error: transmit timeout\n"));
+ ret = -2; goto i2c_transfer_finish;
+
+transfer_error_ack_missing:
+ PRINTD(("i2c_transfer: error: ACK missing\n"));
+ ret = -3; goto i2c_transfer_finish;
+
+transfer_error_receive_timeout:
+ PRINTD(("i2c_transfer: error: receive timeout\n"));
+ ret = -4; goto i2c_transfer_finish;
+
+transfer_error_illegal_param:
+ PRINTD(("i2c_transfer: error: illegal parameters\n"));
+ ret = -5; goto i2c_transfer_finish;
+
+transfer_error_bus_busy:
+ PRINTD(("i2c_transfer: error: bus is busy\n"));
+ ret = -6; goto i2c_transfer_finish;
+
+i2c_transfer_finish:
+ PRINTD(("i2c_transfer: ISR: 0x%04x\n",ISR));
+ i2c_reset();
+ return ret;
+
+}
+
+/* ------------------------------------------------------------------------ */
+/* API Functions */
+/* ------------------------------------------------------------------------ */
+
+void i2c_init(int speed, int slaveaddr)
+{
+#ifdef CONFIG_SYS_I2C_INIT_BOARD
+ /* call board specific i2c bus reset routine before accessing the */
+ /* environment, which might be in a chip on that bus. For details */
+ /* about this problem see doc/I2C_Edge_Conditions. */
+ i2c_init_board();
+#endif
+}
+
+
+/**
+ * i2c_probe: - Test if a chip answers for a given i2c address
+ *
+ * @chip: address of the chip which is searched for
+ * @return: 0 if a chip was found, -1 otherwhise
+ */
+
+int i2c_probe(uchar chip)
+{
+ struct i2c_msg msg;
+
+ i2c_reset();
+
+ msg.condition = I2C_COND_START;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = (chip << 1) + 1;
+ if (i2c_transfer(&msg)) return -1;
+
+ msg.condition = I2C_COND_STOP;
+ msg.acknack = I2C_ACKNAK_SENDNAK;
+ msg.direction = I2C_READ;
+ msg.data = 0x00;
+ if (i2c_transfer(&msg)) return -1;
+
+ return 0;
+}
+
+
+/**
+ * i2c_read: - Read multiple bytes from an i2c device
+ *
+ * The higher level routines take into account that this function is only
+ * called with len < page length of the device (see configuration file)
+ *
+ * @chip: address of the chip which is to be read
+ * @addr: i2c data address within the chip
+ * @alen: length of the i2c data address (1..2 bytes)
+ * @buffer: where to write the data
+ * @len: how much byte do we want to read
+ * @return: 0 in case of success
+ */
+
+int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len)
+{
+ struct i2c_msg msg;
+ u8 addr_bytes[3]; /* lowest...highest byte of data address */
+ int ret;
+
+ PRINTD(("i2c_read(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len));
+
+ i2c_reset();
+
+ /* dummy chip address write */
+ PRINTD(("i2c_read: dummy chip address write\n"));
+ msg.condition = I2C_COND_START;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = (chip << 1);
+ msg.data &= 0xFE;
+ if ((ret=i2c_transfer(&msg))) return -1;
+
+ /*
+ * send memory address bytes;
+ * alen defines how much bytes we have to send.
+ */
+ /*addr &= ((1 << CONFIG_SYS_EEPROM_PAGE_WRITE_BITS)-1); */
+ addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF);
+ addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF);
+ addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF);
+
+ while (--alen >= 0) {
+
+ PRINTD(("i2c_read: send memory word address byte %1d\n",alen));
+ msg.condition = I2C_COND_NORMAL;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = addr_bytes[alen];
+ if ((ret=i2c_transfer(&msg))) return -1;
+ }
+
+
+ /* start read sequence */
+ PRINTD(("i2c_read: start read sequence\n"));
+ msg.condition = I2C_COND_START;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = (chip << 1);
+ msg.data |= 0x01;
+ if ((ret=i2c_transfer(&msg))) return -1;
+
+ /* read bytes; send NACK at last byte */
+ while (len--) {
+
+ if (len==0) {
+ msg.condition = I2C_COND_STOP;
+ msg.acknack = I2C_ACKNAK_SENDNAK;
+ } else {
+ msg.condition = I2C_COND_NORMAL;
+ msg.acknack = I2C_ACKNAK_SENDACK;
+ }
+
+ msg.direction = I2C_READ;
+ msg.data = 0x00;
+ if ((ret=i2c_transfer(&msg))) return -1;
+
+ *buffer = msg.data;
+ PRINTD(("i2c_read: reading byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer));
+ buffer++;
+
+ }
+
+ i2c_reset();
+
+ return 0;
+}
+
+
+/**
+ * i2c_write: - Write multiple bytes to an i2c device
+ *
+ * The higher level routines take into account that this function is only
+ * called with len < page length of the device (see configuration file)
+ *
+ * @chip: address of the chip which is to be written
+ * @addr: i2c data address within the chip
+ * @alen: length of the i2c data address (1..2 bytes)
+ * @buffer: where to find the data to be written
+ * @len: how much byte do we want to read
+ * @return: 0 in case of success
+ */
+
+int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len)
+{
+ struct i2c_msg msg;
+ u8 addr_bytes[3]; /* lowest...highest byte of data address */
+
+ PRINTD(("i2c_write(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len));
+
+ i2c_reset();
+
+ /* chip address write */
+ PRINTD(("i2c_write: chip address write\n"));
+ msg.condition = I2C_COND_START;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = (chip << 1);
+ msg.data &= 0xFE;
+ if (i2c_transfer(&msg)) return -1;
+
+ /*
+ * send memory address bytes;
+ * alen defines how much bytes we have to send.
+ */
+ addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF);
+ addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF);
+ addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF);
+
+ while (--alen >= 0) {
+
+ PRINTD(("i2c_write: send memory word address\n"));
+ msg.condition = I2C_COND_NORMAL;
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = addr_bytes[alen];
+ if (i2c_transfer(&msg)) return -1;
+ }
+
+ /* write bytes; send NACK at last byte */
+ while (len--) {
+
+ PRINTD(("i2c_write: writing byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer));
+
+ if (len==0)
+ msg.condition = I2C_COND_STOP;
+ else
+ msg.condition = I2C_COND_NORMAL;
+
+ msg.acknack = I2C_ACKNAK_WAITACK;
+ msg.direction = I2C_WRITE;
+ msg.data = *(buffer++);
+
+ if (i2c_transfer(&msg)) return -1;
+
+ }
+
+ i2c_reset();
+
+ return 0;
+
+}
+
+#endif /* CONFIG_HARD_I2C */
diff --git a/u-boot/arch/arm/cpu/pxa/pxafb.c b/u-boot/arch/arm/cpu/pxa/pxafb.c
new file mode 100644
index 0000000..987fa06
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/pxafb.c
@@ -0,0 +1,652 @@
+/*
+ * PXA LCD Controller
+ *
+ * (C) Copyright 2001-2002
+ * 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
+ */
+
+/************************************************************************/
+/* ** HEADER FILES */
+/************************************************************************/
+
+#include <config.h>
+#include <common.h>
+#include <version.h>
+#include <stdarg.h>
+#include <linux/types.h>
+#include <stdio_dev.h>
+#include <lcd.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+
+/* #define DEBUG */
+
+#ifdef CONFIG_LCD
+
+/*----------------------------------------------------------------------*/
+/*
+ * Define panel bpp, LCCR0, LCCR3 and panel_info video struct for
+ * your display.
+ */
+
+#ifdef CONFIG_PXA_VGA
+/* LCD outputs connected to a video DAC */
+# define LCD_BPP LCD_COLOR8
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x003008f8
+# define REG_LCCR3 0x0300FF01
+
+/* 640x480x16 @ 61 Hz */
+vidinfo_t panel_info = {
+ .vl_col = 640,
+ .vl_row = 480,
+ .vl_width = 640,
+ .vl_height = 480,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_HIGH,
+ .vl_hsp = CONFIG_SYS_HIGH,
+ .vl_vsp = CONFIG_SYS_HIGH,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 0,
+ .vl_clor = 0,
+ .vl_tft = 1,
+ .vl_hpw = 40,
+ .vl_blw = 56,
+ .vl_elw = 56,
+ .vl_vpw = 20,
+ .vl_bfw = 8,
+ .vl_efw = 8,
+};
+#endif /* CONFIG_PXA_VIDEO */
+
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_SHARP_LM8V31
+
+# define LCD_BPP LCD_COLOR8
+# define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x0030087C
+# define REG_LCCR3 0x0340FF08
+
+vidinfo_t panel_info = {
+ .vl_col = 640,
+ .vl_row = 480,
+ .vl_width = 157,
+ .vl_height = 118,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_HIGH,
+ .vl_hsp = CONFIG_SYS_HIGH,
+ .vl_vsp = CONFIG_SYS_HIGH,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 1,
+ .vl_clor = 1,
+ .vl_tft = 0,
+ .vl_hpw = 1,
+ .vl_blw = 3,
+ .vl_elw = 3,
+ .vl_vpw = 1,
+ .vl_bfw = 0,
+ .vl_efw = 0,
+};
+#endif /* CONFIG_SHARP_LM8V31 */
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_VOIPAC_LCD
+
+# define LCD_BPP LCD_COLOR8
+# define LCD_INVERT_COLORS
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x043008f8
+# define REG_LCCR3 0x0340FF08
+
+vidinfo_t panel_info = {
+ .vl_col = 640,
+ .vl_row = 480,
+ .vl_width = 157,
+ .vl_height = 118,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_HIGH,
+ .vl_hsp = CONFIG_SYS_HIGH,
+ .vl_vsp = CONFIG_SYS_HIGH,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 1,
+ .vl_clor = 1,
+ .vl_tft = 1,
+ .vl_hpw = 32,
+ .vl_blw = 144,
+ .vl_elw = 32,
+ .vl_vpw = 2,
+ .vl_bfw = 13,
+ .vl_efw = 30,
+};
+#endif /* CONFIG_VOIPAC_LCD */
+
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_HITACHI_SX14
+/* Hitachi SX14Q004-ZZA color STN LCD */
+#define LCD_BPP LCD_COLOR8
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+#define REG_LCCR0 0x00301079
+#define REG_LCCR3 0x0340FF20
+
+vidinfo_t panel_info = {
+ .vl_col = 320,
+ .vl_row = 240,
+ .vl_width = 167,
+ .vl_height = 109,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_HIGH,
+ .vl_hsp = CONFIG_SYS_HIGH,
+ .vl_vsp = CONFIG_SYS_HIGH,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 1,
+ .vl_splt = 0,
+ .vl_clor = 1,
+ .vl_tft = 0,
+ .vl_hpw = 1,
+ .vl_blw = 1,
+ .vl_elw = 1,
+ .vl_vpw = 7,
+ .vl_bfw = 0,
+ .vl_efw = 0,
+};
+#endif /* CONFIG_HITACHI_SX14 */
+
+/*----------------------------------------------------------------------*/
+#ifdef CONFIG_LMS283GF05
+
+# define LCD_BPP LCD_COLOR8
+/*# define LCD_INVERT_COLORS*/
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x043008f8
+# define REG_LCCR3 0x03b00009
+
+vidinfo_t panel_info = {
+ .vl_col = 240,
+ .vl_row = 320,
+ .vl_width = 240,
+ .vl_height = 320,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_LOW,
+ .vl_hsp = CONFIG_SYS_LOW,
+ .vl_vsp = CONFIG_SYS_LOW,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 1,
+ .vl_clor = 1,
+ .vl_tft = 1,
+ .vl_hpw = 4,
+ .vl_blw = 4,
+ .vl_elw = 8,
+ .vl_vpw = 4,
+ .vl_bfw = 4,
+ .vl_efw = 8,
+};
+#endif /* CONFIG_LMS283GF05 */
+
+/*----------------------------------------------------------------------*/
+
+#ifdef CONFIG_ACX517AKN
+
+# define LCD_BPP LCD_COLOR8
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x003008f9
+# define REG_LCCR3 0x03700006
+
+vidinfo_t panel_info = {
+ .vl_col = 320,
+ .vl_row = 320,
+ .vl_width = 320,
+ .vl_height = 320,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_LOW,
+ .vl_hsp = CONFIG_SYS_LOW,
+ .vl_vsp = CONFIG_SYS_LOW,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 1,
+ .vl_clor = 1,
+ .vl_tft = 1,
+ .vl_hpw = 0x04,
+ .vl_blw = 0x1c,
+ .vl_elw = 0x08,
+ .vl_vpw = 0x01,
+ .vl_bfw = 0x07,
+ .vl_efw = 0x08,
+};
+#endif /* CONFIG_ACX517AKN */
+
+/*----------------------------------------------------------------------*/
+
+#ifdef CONFIG_LQ038J7DH53
+
+# define LCD_BPP LCD_COLOR8
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x003008f9
+# define REG_LCCR3 0x03700004
+
+vidinfo_t panel_info = {
+ .vl_col = 320,
+ .vl_row = 480,
+ .vl_width = 320,
+ .vl_height = 480,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_LOW,
+ .vl_hsp = CONFIG_SYS_LOW,
+ .vl_vsp = CONFIG_SYS_LOW,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 1,
+ .vl_clor = 1,
+ .vl_tft = 1,
+ .vl_hpw = 0x04,
+ .vl_blw = 0x20,
+ .vl_elw = 0x01,
+ .vl_vpw = 0x01,
+ .vl_bfw = 0x04,
+ .vl_efw = 0x01,
+};
+#endif /* CONFIG_ACX517AKN */
+
+/*----------------------------------------------------------------------*/
+
+#ifdef CONFIG_LITTLETON_LCD
+# define LCD_BPP LCD_COLOR8
+
+/* you have to set lccr0 and lccr3 (including pcd) */
+# define REG_LCCR0 0x003008f8
+# define REG_LCCR3 0x0300FF04
+
+vidinfo_t panel_info = {
+ .vl_col = 480,
+ .vl_row = 640,
+ .vl_width = 480,
+ .vl_height = 640,
+ .vl_clkp = CONFIG_SYS_HIGH,
+ .vl_oep = CONFIG_SYS_HIGH,
+ .vl_hsp = CONFIG_SYS_HIGH,
+ .vl_vsp = CONFIG_SYS_HIGH,
+ .vl_dp = CONFIG_SYS_HIGH,
+ .vl_bpix = LCD_BPP,
+ .vl_lbw = 0,
+ .vl_splt = 0,
+ .vl_clor = 0,
+ .vl_tft = 1,
+ .vl_hpw = 9,
+ .vl_blw = 8,
+ .vl_elw = 24,
+ .vl_vpw = 2,
+ .vl_bfw = 2,
+ .vl_efw = 4,
+};
+#endif /* CONFIG_LITTLETON_LCD */
+
+/*----------------------------------------------------------------------*/
+
+#if LCD_BPP == LCD_COLOR8
+void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue);
+#endif
+#if LCD_BPP == LCD_MONOCHROME
+void lcd_initcolregs (void);
+#endif
+
+#ifdef NOT_USED_SO_FAR
+void lcd_disable (void);
+void lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue);
+#endif /* NOT_USED_SO_FAR */
+
+void lcd_ctrl_init (void *lcdbase);
+void lcd_enable (void);
+
+int lcd_line_length;
+int lcd_color_fg;
+int lcd_color_bg;
+
+void *lcd_base; /* Start of framebuffer memory */
+void *lcd_console_address; /* Start of console buffer */
+
+short console_col;
+short console_row;
+
+static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
+static void pxafb_setup_gpio (vidinfo_t *vid);
+static void pxafb_enable_controller (vidinfo_t *vid);
+static int pxafb_init (vidinfo_t *vid);
+/************************************************************************/
+
+/************************************************************************/
+/* --------------- PXA chipset specific functions ------------------- */
+/************************************************************************/
+
+void lcd_ctrl_init (void *lcdbase)
+{
+ pxafb_init_mem(lcdbase, &panel_info);
+ pxafb_init(&panel_info);
+ pxafb_setup_gpio(&panel_info);
+ pxafb_enable_controller(&panel_info);
+}
+
+/*----------------------------------------------------------------------*/
+#ifdef NOT_USED_SO_FAR
+void
+lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue)
+{
+}
+#endif /* NOT_USED_SO_FAR */
+
+/*----------------------------------------------------------------------*/
+#if LCD_BPP == LCD_COLOR8
+void
+lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
+{
+ struct pxafb_info *fbi = &panel_info.pxa;
+ unsigned short *palette = (unsigned short *)fbi->palette;
+ u_int val;
+
+ if (regno < fbi->palette_size) {
+ val = ((red << 8) & 0xf800);
+ val |= ((green << 4) & 0x07e0);
+ val |= (blue & 0x001f);
+
+#ifdef LCD_INVERT_COLORS
+ palette[regno] = ~val;
+#else
+ palette[regno] = val;
+#endif
+ }
+
+ debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
+ regno, &palette[regno],
+ red, green, blue,
+ palette[regno]);
+}
+#endif /* LCD_COLOR8 */
+
+/*----------------------------------------------------------------------*/
+#if LCD_BPP == LCD_MONOCHROME
+void lcd_initcolregs (void)
+{
+ struct pxafb_info *fbi = &panel_info.pxa;
+ cmap = (ushort *)fbi->palette;
+ ushort regno;
+
+ for (regno = 0; regno < 16; regno++) {
+ cmap[regno * 2] = 0;
+ cmap[(regno * 2) + 1] = regno & 0x0f;
+ }
+}
+#endif /* LCD_MONOCHROME */
+
+/*----------------------------------------------------------------------*/
+void lcd_enable (void)
+{
+}
+
+/*----------------------------------------------------------------------*/
+#ifdef NOT_USED_SO_FAR
+static void lcd_disable (void)
+{
+}
+#endif /* NOT_USED_SO_FAR */
+
+/*----------------------------------------------------------------------*/
+
+/************************************************************************/
+/* ** PXA255 specific routines */
+/************************************************************************/
+
+/*
+ * Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
+ * descriptors and palette areas.
+ */
+ulong calc_fbsize (void)
+{
+ ulong size;
+ int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
+
+ size = line_length * panel_info.vl_row;
+ size += PAGE_SIZE;
+
+ return size;
+}
+
+static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid)
+{
+ u_long palette_mem_size;
+ struct pxafb_info *fbi = &vid->pxa;
+ int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
+
+ fbi->screen = (u_long)lcdbase;
+
+ fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
+ palette_mem_size = fbi->palette_size * sizeof(u16);
+
+ debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
+ /* locate palette and descs at end of page following fb */
+ fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
+
+ return 0;
+}
+#ifdef CONFIG_CPU_MONAHANS
+static inline void pxafb_setup_gpio (vidinfo_t *vid) {}
+#else
+static void pxafb_setup_gpio (vidinfo_t *vid)
+{
+ u_long lccr0;
+
+ /*
+ * setup is based on type of panel supported
+ */
+
+ lccr0 = vid->pxa.reg_lccr0;
+
+ /* 4 bit interface */
+ if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
+ {
+ debug("Setting GPIO for 4 bit data\n");
+ /* bits 58-61 */
+ writel(readl(GPDR1) | (0xf << 26), GPDR1);
+ writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR1_U);
+
+ /* bits 74-77 */
+ writel(readl(GPDR2) | (0xf << 10), GPDR2);
+ writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR2_L);
+ }
+
+ /* 8 bit interface */
+ else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
+ (!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
+ {
+ debug("Setting GPIO for 8 bit data\n");
+ /* bits 58-65 */
+ writel(readl(GPDR1) | (0x3f << 26), GPDR1);
+ writel(readl(GPDR2) | (0x3), GPDR2);
+
+ writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
+ GAFR1_U);
+ writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
+
+ /* bits 74-77 */
+ writel(readl(GPDR2) | (0xf << 10), GPDR2);
+ writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
+ GAFR2_L);
+ }
+
+ /* 16 bit interface */
+ else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
+ {
+ debug("Setting GPIO for 16 bit data\n");
+ /* bits 58-77 */
+ writel(readl(GPDR1) | (0x3f << 26), GPDR1);
+ writel(readl(GPDR2) | 0x00003fff, GPDR2);
+
+ writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
+ GAFR1_U);
+ writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
+ }
+ else
+ {
+ printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
+ }
+}
+#endif
+
+static void pxafb_enable_controller (vidinfo_t *vid)
+{
+ debug("Enabling LCD controller\n");
+
+ /* Sequence from 11.7.10 */
+ writel(vid->pxa.reg_lccr3, LCCR3);
+ writel(vid->pxa.reg_lccr2, LCCR2);
+ writel(vid->pxa.reg_lccr1, LCCR1);
+ writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
+ writel(vid->pxa.fdadr0, FDADR0);
+ writel(vid->pxa.fdadr1, FDADR1);
+ writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
+
+#ifdef CONFIG_CPU_MONAHANS
+ writel(readl(CKENA) | CKENA_1_LCD, CKENA);
+#else
+ writel(readl(CKEN) | CKEN16_LCD, CKEN);
+#endif
+
+ debug("FDADR0 = 0x%08x\n", readl(FDADR0));
+ debug("FDADR1 = 0x%08x\n", readl(FDADR1));
+ debug("LCCR0 = 0x%08x\n", readl(LCCR0));
+ debug("LCCR1 = 0x%08x\n", readl(LCCR1));
+ debug("LCCR2 = 0x%08x\n", readl(LCCR2));
+ debug("LCCR3 = 0x%08x\n", readl(LCCR3));
+}
+
+static int pxafb_init (vidinfo_t *vid)
+{
+ struct pxafb_info *fbi = &vid->pxa;
+
+ debug("Configuring PXA LCD\n");
+
+ fbi->reg_lccr0 = REG_LCCR0;
+ fbi->reg_lccr3 = REG_LCCR3;
+
+ debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
+ vid->vl_col, vid->vl_hpw,
+ vid->vl_blw, vid->vl_elw);
+ debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
+ vid->vl_row, vid->vl_vpw,
+ vid->vl_bfw, vid->vl_efw);
+
+ fbi->reg_lccr1 =
+ LCCR1_DisWdth(vid->vl_col) +
+ LCCR1_HorSnchWdth(vid->vl_hpw) +
+ LCCR1_BegLnDel(vid->vl_blw) +
+ LCCR1_EndLnDel(vid->vl_elw);
+
+ fbi->reg_lccr2 =
+ LCCR2_DisHght(vid->vl_row) +
+ LCCR2_VrtSnchWdth(vid->vl_vpw) +
+ LCCR2_BegFrmDel(vid->vl_bfw) +
+ LCCR2_EndFrmDel(vid->vl_efw);
+
+ fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
+ fbi->reg_lccr3 |= (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
+ | (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
+
+
+ /* setup dma descriptors */
+ fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
+ fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
+ fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
+
+ #define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
+ (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
+ (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
+
+ /* populate descriptors */
+ fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
+ fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
+ fbi->dmadesc_fblow->fidr = 0;
+ fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
+
+ fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
+
+ fbi->dmadesc_fbhigh->fsadr = fbi->screen;
+ fbi->dmadesc_fbhigh->fidr = 0;
+ fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
+
+ fbi->dmadesc_palette->fsadr = fbi->palette;
+ fbi->dmadesc_palette->fidr = 0;
+ fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
+
+ if( NBITS(vid->vl_bpix) < 12)
+ {
+ /* assume any mode with <12 bpp is palette driven */
+ fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
+ fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
+ /* flips back and forth between pal and fbhigh */
+ fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
+ }
+ else
+ {
+ /* palette shouldn't be loaded in true-color mode */
+ fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
+ fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
+ }
+
+ debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
+ debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
+ debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
+
+ debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
+ debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
+ debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
+
+ debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
+ debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
+ debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
+
+ debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
+ debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
+ debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
+
+ return 0;
+}
+
+/************************************************************************/
+/************************************************************************/
+
+#endif /* CONFIG_LCD */
diff --git a/u-boot/arch/arm/cpu/pxa/start.S b/u-boot/arch/arm/cpu/pxa/start.S
new file mode 100644
index 0000000..d2d391e
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/start.S
@@ -0,0 +1,603 @@
+/*
+ * armboot - Startup Code for XScale
+ *
+ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
+ * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ * Copyright (C) 2000 Wolfgang Denk <wd@denx.de>
+ * Copyright (C) 2001 Alex Zuepke <azu@sysgo.de>
+ * Copyright (C) 2002 Kyle Harris <kharris@nexus-tech.net>
+ * Copyright (C) 2003 Robert Schwebel <r.schwebel@pengutronix.de>
+ * Copyright (C) 2003 Kai-Uwe Bloem <kai-uwe.bloem@auerswald.de>
+ * Copyright (c) 2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * 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 <asm-offsets.h>
+#include <config.h>
+#include <version.h>
+#include <asm/arch/pxa-regs.h>
+
+/* takes care the CP15 update has taken place */
+.macro CPWAIT reg
+mrc p15,0,\reg,c2,c0,0
+mov \reg,\reg
+sub pc,pc,#4
+.endm
+
+.globl _start
+_start: b reset
+#ifdef CONFIG_PRELOADER
+ ldr pc, _hang
+ ldr pc, _hang
+ ldr pc, _hang
+ ldr pc, _hang
+ ldr pc, _hang
+ ldr pc, _hang
+ ldr pc, _hang
+
+_hang:
+ .word do_hang
+ .word 0x12345678
+ .word 0x12345678
+ .word 0x12345678
+ .word 0x12345678
+ .word 0x12345678
+ .word 0x12345678
+ .word 0x12345678 /* now 16*4=64 */
+#else
+ ldr pc, _undefined_instruction
+ ldr pc, _software_interrupt
+ ldr pc, _prefetch_abort
+ ldr pc, _data_abort
+ ldr pc, _not_used
+ ldr pc, _irq
+ ldr pc, _fiq
+
+_undefined_instruction: .word undefined_instruction
+_software_interrupt: .word software_interrupt
+_prefetch_abort: .word prefetch_abort
+_data_abort: .word data_abort
+_not_used: .word not_used
+_irq: .word irq
+_fiq: .word fiq
+#endif /* CONFIG_PRELOADER */
+
+ .balignl 16,0xdeadbeef
+
+
+/*
+ * Startup Code (reset vector)
+ *
+ * do important init only if we don't start from RAM!
+ * - relocate armboot to RAM
+ * - setup stack
+ * - jump to second stage
+ */
+
+.globl _TEXT_BASE
+_TEXT_BASE:
+ .word CONFIG_SYS_TEXT_BASE
+
+/*
+ * These are defined in the board-specific linker script.
+ */
+.globl _bss_start_ofs
+_bss_start_ofs:
+ .word __bss_start - _start
+
+.globl _bss_end_ofs
+_bss_end_ofs:
+ .word _end - _start
+
+#ifdef CONFIG_USE_IRQ
+/* IRQ stack memory (calculated at run-time) */
+.globl IRQ_STACK_START
+IRQ_STACK_START:
+ .word 0x0badc0de
+
+/* IRQ stack memory (calculated at run-time) */
+.globl FIQ_STACK_START
+FIQ_STACK_START:
+ .word 0x0badc0de
+#endif /* CONFIG_USE_IRQ */
+
+#ifndef CONFIG_PRELOADER
+/* IRQ stack memory (calculated at run-time) + 8 bytes */
+.globl IRQ_STACK_START_IN
+IRQ_STACK_START_IN:
+ .word 0x0badc0de
+
+/*
+ * the actual reset code
+ */
+
+reset:
+ /*
+ * set the cpu to SVC32 mode
+ */
+ mrs r0,cpsr
+ bic r0,r0,#0x1f
+ orr r0,r0,#0xd3
+ msr cpsr,r0
+
+ /*
+ * Enable MMU to use DCache as DRAM
+ */
+ /* Domain access -- enable for all CPs */
+ ldr r0, =0x0000ffff
+ mcr p15, 0, r0, c3, c0, 0
+
+ /* Point TTBR to MMU table */
+ ldr r0, =mmu_table
+ adr r2, _start
+ orr r0, r2
+ mcr p15, 0, r0, c2, c0, 0
+
+/* !!! Hereby, check if the code is running from SRAM !!! */
+/* If the code is running from SRAM, alias SRAM to 0x0 to simulate NOR. The code
+ * is linked to 0x0 too, so this makes things easier. */
+ cmp r2, #0x5c000000
+
+ ldreq r1, [r0]
+ orreq r1, r2
+ streq r1, [r0]
+
+ /* Kick in MMU, ICache, DCache, BTB */
+ mrc p15, 0, r0, c1, c0, 0
+ bic r0, #0x1b00
+ bic r0, #0x0087
+ orr r0, #0x1800
+ orr r0, #0x0005
+ mcr p15, 0, r0, c1, c0, 0
+ CPWAIT r0
+
+ /* Unlock Icache, Dcache */
+ mcr p15, 0, r0, c9, c1, 1
+ mcr p15, 0, r0, c9, c2, 1
+
+ /* Flush Icache, Dcache, BTB */
+ mcr p15, 0, r0, c7, c7, 0
+
+ /* Unlock I-TLB, D-TLB */
+ mcr p15, 0, r0, c10, c4, 1
+ mcr p15, 0, r0, c10, c8, 1
+
+ /* Flush TLB */
+ mcr p15, 0, r0, c8, c7, 0
+ /* Allocate 4096 bytes of Dcache as RAM */
+
+ /* Drain pending loads and stores */
+ mcr p15, 0, r0, c7, c10, 4
+
+ mov r4, #0x00
+ mov r5, #0x00
+ mov r2, #0x01
+ mcr p15, 0, r0, c9, c2, 0
+ CPWAIT r0
+
+ /* 128 lines reserved (128 x 32bytes = 4096 bytes total) */
+ mov r0, #128
+ mov r1, #0xa0000000
+alloc:
+ mcr p15, 0, r1, c7, c2, 5
+ /* Drain pending loads and stores */
+ mcr p15, 0, r0, c7, c10, 4
+ strd r4, [r1], #8
+ strd r4, [r1], #8
+ strd r4, [r1], #8
+ strd r4, [r1], #8
+ subs r0, #0x01
+ bne alloc
+ /* Drain pending loads and stores */
+ mcr p15, 0, r0, c7, c10, 4
+ mov r2, #0x00
+ mcr p15, 0, r2, c9, c2, 0
+ CPWAIT r0
+
+ /* Jump to 0x0 ( + offset) if running from SRAM */
+ adr r0, zerojmp
+ bic r0, #0x5c000000
+ mov pc, r0
+zerojmp:
+
+/* Set stackpointer in internal RAM to call board_init_f */
+call_board_init_f:
+ ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
+ bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
+ ldr r0,=0x00000000
+ bl board_init_f
+
+/*------------------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ */
+ .globl relocate_code
+relocate_code:
+ mov r4, r0 /* save addr_sp */
+ mov r5, r1 /* save addr of gd */
+ mov r6, r2 /* save addr of destination */
+
+ /* Set up the stack */
+stack_setup:
+ mov sp, r4
+
+ adr r0, _start
+ cmp r0, r6
+ beq clear_bss /* skip relocation */
+ mov r1, r6 /* r1 <- scratch for copy_loop */
+ ldr r3, _bss_start_ofs
+ add r2, r0, r3 /* r2 <- source end address */
+
+ stmfd sp!, {r0-r12}
+copy_loop:
+ ldmia r0!, {r3-r5, r7-r11} /* copy from source address [r0] */
+ stmia r1!, {r3-r5, r7-r11} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end address [r2] */
+ blo copy_loop
+ ldmfd sp!, {r0-r12}
+
+#ifndef CONFIG_PRELOADER
+ /*
+ * fix .rel.dyn relocations
+ */
+ ldr r0, _TEXT_BASE /* r0 <- Text base */
+ sub r9, r6, r0 /* r9 <- relocation offset */
+ ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */
+ add r10, r10, r0 /* r10 <- sym table in FLASH */
+ ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */
+ add r2, r2, r0 /* r2 <- rel dyn start in FLASH */
+ ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */
+ add r3, r3, r0 /* r3 <- rel dyn end in FLASH */
+fixloop:
+ ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
+ add r0, r9 /* r0 <- location to fix up in RAM */
+ ldr r1, [r2, #4]
+ and r7, r1, #0xff
+ cmp r7, #23 /* relative fixup? */
+ beq fixrel
+ cmp r7, #2 /* absolute fixup? */
+ beq fixabs
+ /* ignore unknown type of fixup */
+ b fixnext
+fixabs:
+ /* absolute fix: set location to (offset) symbol value */
+ mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */
+ add r1, r10, r1 /* r1 <- address of symbol in table */
+ ldr r1, [r1, #4] /* r1 <- symbol value */
+ add r1, r1, r9 /* r1 <- relocated sym addr */
+ b fixnext
+fixrel:
+ /* relative fix: increase location by offset */
+ ldr r1, [r0]
+ add r1, r1, r9
+fixnext:
+ str r1, [r0]
+ add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
+ cmp r2, r3
+ blo fixloop
+#endif /* #ifndef CONFIG_PRELOADER */
+
+clear_bss:
+#ifndef CONFIG_PRELOADER
+ ldr r0, _bss_start_ofs
+ ldr r1, _bss_end_ofs
+ mov r4, r6 /* reloc addr */
+ add r0, r0, r4
+ add r1, r1, r4
+ mov r2, #0x00000000 /* clear */
+
+clbss_l:str r2, [r0] /* clear loop... */
+ add r0, r0, #4
+ cmp r0, r1
+ bne clbss_l
+#endif /* #ifndef CONFIG_PRELOADER */
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+#ifdef CONFIG_ONENAND_IPL
+ ldr r0, _start_oneboot_ofs
+ mov pc, r0
+
+_start_oneboot_ofs
+ : .word start_oneboot
+#else
+ ldr r0, _board_init_r_ofs
+ adr r1, _start
+ add lr, r0, r1
+ add lr, lr, r9
+ /* setup parameters for board_init_r */
+ mov r0, r5 /* gd_t */
+ mov r1, r6 /* dest_addr */
+ /* jump to it ... */
+ mov pc, lr
+
+_board_init_r_ofs:
+ .word board_init_r - _start
+#endif /* CONFIG_ONENAND_IPL */
+
+_rel_dyn_start_ofs:
+ .word __rel_dyn_start - _start
+_rel_dyn_end_ofs:
+ .word __rel_dyn_end - _start
+_dynsym_start_ofs:
+ .word __dynsym_start - _start
+
+#else /* CONFIG_PRELOADER */
+
+/****************************************************************************/
+/* */
+/* the actual reset code for OneNAND IPL */
+/* */
+/****************************************************************************/
+
+#ifndef CONFIG_PXA27X
+#error OneNAND IPL is not supported on PXA25x and 26x due to lack of SRAM
+#endif
+
+reset:
+ /* Set CPU to SVC32 mode */
+ mrs r0,cpsr
+ bic r0,r0,#0x1f
+ orr r0,r0,#0x13
+ msr cpsr,r0
+
+ /* Point stack at the end of SRAM and leave 32 words for abort-stack */
+ ldr sp, =0x5c03ff80
+
+ /* Start OneNAND IPL */
+ ldr pc, =start_oneboot
+
+#endif /* CONFIG_PRELOADER */
+
+#ifndef CONFIG_PRELOADER
+/****************************************************************************/
+/* */
+/* Interrupt handling */
+/* */
+/****************************************************************************/
+
+/* IRQ stack frame */
+
+#define S_FRAME_SIZE 72
+
+#define S_OLD_R0 68
+#define S_PSR 64
+#define S_PC 60
+#define S_LR 56
+#define S_SP 52
+
+#define S_IP 48
+#define S_FP 44
+#define S_R10 40
+#define S_R9 36
+#define S_R8 32
+#define S_R7 28
+#define S_R6 24
+#define S_R5 20
+#define S_R4 16
+#define S_R3 12
+#define S_R2 8
+#define S_R1 4
+#define S_R0 0
+
+#define MODE_SVC 0x13
+
+ /* use bad_save_user_regs for abort/prefetch/undef/swi ... */
+
+ .macro bad_save_user_regs
+ sub sp, sp, #S_FRAME_SIZE
+ stmia sp, {r0 - r12} /* Calling r0-r12 */
+ add r8, sp, #S_PC
+
+ ldr r2, IRQ_STACK_START_IN
+ ldmia r2, {r2 - r4} /* get pc, cpsr, old_r0 */
+ add r0, sp, #S_FRAME_SIZE /* restore sp_SVC */
+
+ add r5, sp, #S_SP
+ mov r1, lr
+ stmia r5, {r0 - r4} /* save sp_SVC, lr_SVC, pc, cpsr, old_r */
+ mov r0, sp
+ .endm
+
+
+ /* use irq_save_user_regs / irq_restore_user_regs for */
+ /* IRQ/FIQ handling */
+
+ .macro irq_save_user_regs
+ sub sp, sp, #S_FRAME_SIZE
+ stmia sp, {r0 - r12} /* Calling r0-r12 */
+ add r8, sp, #S_PC
+ stmdb r8, {sp, lr}^ /* Calling SP, LR */
+ str lr, [r8, #0] /* Save calling PC */
+ mrs r6, spsr
+ str r6, [r8, #4] /* Save CPSR */
+ str r0, [r8, #8] /* Save OLD_R0 */
+ mov r0, sp
+ .endm
+
+ .macro irq_restore_user_regs
+ ldmia sp, {r0 - lr}^ @ Calling r0 - lr
+ mov r0, r0
+ ldr lr, [sp, #S_PC] @ Get PC
+ add sp, sp, #S_FRAME_SIZE
+ subs pc, lr, #4 @ return & move spsr_svc into cpsr
+ .endm
+
+ .macro get_bad_stack
+ ldr r13, IRQ_STACK_START_IN @ setup our mode stack
+
+ str lr, [r13] @ save caller lr / spsr
+ mrs lr, spsr
+ str lr, [r13, #4]
+
+ mov r13, #MODE_SVC @ prepare SVC-Mode
+ msr spsr_c, r13
+ mov lr, pc
+ movs pc, lr
+ .endm
+
+ .macro get_irq_stack @ setup IRQ stack
+ ldr sp, IRQ_STACK_START
+ .endm
+
+ .macro get_fiq_stack @ setup FIQ stack
+ ldr sp, FIQ_STACK_START
+ .endm
+#endif /* CONFIG_PRELOADER
+
+
+/****************************************************************************/
+/* */
+/* exception handlers */
+/* */
+/****************************************************************************/
+
+#ifdef CONFIG_PRELOADER
+ .align 5
+do_hang:
+ ldr sp, _TEXT_BASE /* use 32 words abort stack */
+ bl hang /* hang and never return */
+#else
+ .align 5
+undefined_instruction:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_undefined_instruction
+
+ .align 5
+software_interrupt:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_software_interrupt
+
+ .align 5
+prefetch_abort:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_prefetch_abort
+
+ .align 5
+data_abort:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_data_abort
+
+ .align 5
+not_used:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_not_used
+
+#ifdef CONFIG_USE_IRQ
+
+ .align 5
+irq:
+ get_irq_stack
+ irq_save_user_regs
+ bl do_irq
+ irq_restore_user_regs
+
+ .align 5
+fiq:
+ get_fiq_stack
+ irq_save_user_regs /* someone ought to write a more */
+ bl do_fiq /* effiction fiq_save_user_regs */
+ irq_restore_user_regs
+
+#else /* !CONFIG_USE_IRQ */
+
+ .align 5
+irq:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_irq
+
+ .align 5
+fiq:
+ get_bad_stack
+ bad_save_user_regs
+ bl do_fiq
+#endif /* CONFIG_PRELOADER */
+#endif /* CONFIG_USE_IRQ */
+
+/****************************************************************************/
+/* */
+/* Reset function: the PXA250 doesn't have a reset function, so we have to */
+/* perform a watchdog timeout for a soft reset. */
+/* */
+/****************************************************************************/
+/* Operating System Timer */
+.align 5
+.globl reset_cpu
+
+ /* FIXME: this code is PXA250 specific. How is this handled on */
+ /* other XScale processors? */
+
+reset_cpu:
+
+ /* We set OWE:WME (watchdog enable) and wait until timeout happens */
+
+ ldr r0, =OWER
+ ldr r1, [r0]
+ orr r1, r1, #0x0001 /* bit0: WME */
+ str r1, [r0]
+
+ /* OS timer does only wrap every 1165 seconds, so we have to set */
+ /* the match register as well. */
+
+ ldr r0, =OSCR
+ ldr r1, [r0] /* read OS timer */
+ add r1, r1, #0x800 /* let OSMR3 match after */
+ add r1, r1, #0x800 /* 4096*(1/3.6864MHz)=1ms */
+ ldr r0, =OSMR3
+ str r1, [r0]
+
+reset_endless:
+
+ b reset_endless
+
+#ifndef CONFIG_PRELOADER
+.section .mmudata, "a"
+ .align 14
+ .globl mmu_table
+mmu_table:
+ /* 0x00000000 - 0xa0000000 : 1:1, uncached mapping */
+ .set __base, 0
+ .rept 0xa00
+ .word (__base << 20) | 0xc12
+ .set __base, __base + 1
+ .endr
+
+ /* 0xa0000000 - 0xa0100000 : 1:1, cached mapping */
+ .word (0xa00 << 20) | 0x1c1e
+
+ .set __base, 0xa01
+ .rept 0x1000 - 0xa01
+ .word (__base << 20) | 0xc12
+ .set __base, __base + 1
+ .endr
+#endif /* CONFIG_PRELOADER */
diff --git a/u-boot/arch/arm/cpu/pxa/timer.c b/u-boot/arch/arm/cpu/pxa/timer.c
new file mode 100644
index 0000000..ec950c7
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/timer.c
@@ -0,0 +1,129 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.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
+ */
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+#include <common.h>
+#include <div64.h>
+
+#ifdef CONFIG_USE_IRQ
+#error: interrupts not implemented yet
+#endif
+
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+#define TIMER_FREQ_HZ 3250000
+#elif defined(CONFIG_PXA250)
+#define TIMER_FREQ_HZ 3686400
+#else
+#error "Timer frequency unknown - please config PXA CPU type"
+#endif
+
+static inline unsigned long long tick_to_time(unsigned long long tick)
+{
+ tick *= CONFIG_SYS_HZ;
+ do_div(tick, TIMER_FREQ_HZ);
+ return tick;
+}
+
+static inline unsigned long long us_to_tick(unsigned long long us)
+{
+ us = us * TIMER_FREQ_HZ + 999999;
+ do_div(us, 1000000);
+ return us;
+}
+
+int timer_init (void)
+{
+ reset_timer();
+
+ return 0;
+}
+
+void reset_timer (void)
+{
+ reset_timer_masked ();
+}
+
+ulong get_timer (ulong base)
+{
+ return get_timer_masked () - base;
+}
+
+void set_timer (ulong t)
+{
+ /* nop */
+}
+
+void __udelay (unsigned long usec)
+{
+ udelay_masked (usec);
+}
+
+
+void reset_timer_masked (void)
+{
+ writel(0, OSCR);
+}
+
+ulong get_timer_masked (void)
+{
+ return tick_to_time(get_ticks());
+}
+
+void udelay_masked (unsigned long usec)
+{
+ unsigned long long tmp;
+ ulong tmo;
+
+ tmo = us_to_tick(usec);
+ tmp = get_ticks() + tmo; /* get current timestamp */
+
+ while (get_ticks() < tmp) /* loop till event */
+ /*NOP*/;
+
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On ARM it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+ return readl(OSCR);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk (void)
+{
+ ulong tbclk;
+ tbclk = TIMER_FREQ_HZ;
+ return tbclk;
+}
diff --git a/u-boot/arch/arm/cpu/pxa/u-boot.lds b/u-boot/arch/arm/cpu/pxa/u-boot.lds
new file mode 100644
index 0000000..0818d0b
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/u-boot.lds
@@ -0,0 +1,78 @@
+/*
+ * (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 :
+ {
+ arch/arm/cpu/pxa/start.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+ . = ALIGN(4);
+ .data : {
+ *(.data)
+ }
+
+ . = ALIGN(4);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ . = ALIGN(4);
+
+ .rel.dyn : {
+ __rel_dyn_start = .;
+ *(.rel*)
+ __rel_dyn_end = .;
+ }
+
+ .dynsym : {
+ __dynsym_start = .;
+ *(.dynsym)
+ }
+
+ .bss __rel_dyn_start (OVERLAY) : {
+ __bss_start = .;
+ *(.bss)
+ . = ALIGN(4);
+ _end = .;
+ }
+
+ /DISCARD/ : { *(.dynstr*) }
+ /DISCARD/ : { *(.dynamic*) }
+ /DISCARD/ : { *(.plt*) }
+ /DISCARD/ : { *(.interp*) }
+ /DISCARD/ : { *(.gnu*) }
+}
diff --git a/u-boot/arch/arm/cpu/pxa/usb.c b/u-boot/arch/arm/cpu/pxa/usb.c
new file mode 100644
index 0000000..0311d5e
--- /dev/null
+++ b/u-boot/arch/arm/cpu/pxa/usb.c
@@ -0,0 +1,105 @@
+/*
+ * (C) Copyright 2006
+ * Markus Klotzbuecher, DENX Software Engineering <mk@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
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
+# if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X)
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+#include <usb.h>
+
+int usb_cpu_init(void)
+{
+#if defined(CONFIG_CPU_MONAHANS)
+ /* Enable USB host clock. */
+ writel(readl(CKENA) | CKENA_2_USBHOST | CKENA_20_UDC, CKENA);
+ udelay(100);
+#endif
+#if defined(CONFIG_PXA27X)
+ /* Enable USB host clock. */
+ writel(readl(CKEN) | CKEN10_USBHOST, CKEN);
+#endif
+
+#if defined(CONFIG_CPU_MONAHANS)
+ /* Configure Port 2 for Host (USB Client Registers) */
+ writel(0x3000c, UP2OCR);
+#endif
+
+ writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
+ wait_ms(11);
+ writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
+
+ writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR);
+ while (readl(UHCHR) & UHCHR_FSBIR)
+ udelay(1);
+
+#if defined(CONFIG_CPU_MONAHANS)
+ writel(readl(UHCHR) & ~UHCHR_SSEP0, UHCHR);
+#endif
+#if defined(CONFIG_PXA27X)
+ writel(readl(UHCHR) & ~UHCHR_SSEP2, UHCHR);
+#endif
+ writel(readl(UHCHR) & ~(UHCHR_SSEP1 | UHCHR_SSE), UHCHR);
+
+ return 0;
+}
+
+int usb_cpu_stop(void)
+{
+ writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
+ udelay(11);
+ writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
+
+ writel(readl(UHCCOMS) | UHCHR_FHR, UHCCOMS);
+ udelay(10);
+
+#if defined(CONFIG_CPU_MONAHANS)
+ writel(readl(UHCHR) | UHCHR_SSEP0, UHCHR);
+#endif
+#if defined(CONFIG_PXA27X)
+ writel(readl(UHCHR) | UHCHR_SSEP2, UHCHR);
+#endif
+ writel(readl(UHCHR) | UHCHR_SSEP1 | UHCHR_SSE, UHCHR);
+
+#if defined(CONFIG_CPU_MONAHANS)
+ /* Disable USB host clock. */
+ writel(readl(CKENA) & ~(CKENA_2_USBHOST | CKENA_20_UDC), CKENA);
+ udelay(100);
+#endif
+#if defined(CONFIG_PXA27X)
+ /* Disable USB host clock. */
+ writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN);
+#endif
+
+ return 0;
+}
+
+int usb_cpu_init_fail(void)
+{
+ return usb_cpu_stop();
+}
+
+# endif /* defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X) */
+#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
generated by cgit v1.1 at 2024-06-19 00:54:19 +0000