* [U-Boot] [PATCH V5 0/3] Add support for MB86R0x SoCs
@ 2010-08-02 7:35 Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 1/3] arm: " Matthias Weisser
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Matthias Weisser @ 2010-08-02 7:35 UTC (permalink / raw)
To: u-boot
This patchset adds support for MB86R0x SoC familiy from Fujitsu,
its built in lcd controller and a first board using the
MB86R01.
Changes since V4
- Rebased to current master branch
Changes since V3
- Added support for additional oscillator frequency
Changes since V2
- Rebased to current u-boot next branch
Changes since V1
- Used C structs for addressing instead of base + offset
- Moved offsets for assmebler code to asm-offsets.h
- Moved some dublicated sections of code to functions
Matthias Weisser (3):
arm: Add support for MB86R0x SoCs
video: add support for display controller in MB86R0x SoCs
arm: Add support for jadecpu board based on MB86R01 SoC
MAINTAINERS | 4 +
MAKEALL | 1 +
arch/arm/cpu/arm926ejs/mb86r0x/Makefile | 47 ++
arch/arm/cpu/arm926ejs/mb86r0x/clock.c | 45 ++
arch/arm/cpu/arm926ejs/mb86r0x/reset.c | 40 ++
arch/arm/cpu/arm926ejs/mb86r0x/timer.c | 139 ++++++
arch/arm/include/asm/arch-mb86r0x/asm-offsets.h | 74 +++
arch/arm/include/asm/arch-mb86r0x/hardware.h | 31 ++
arch/arm/include/asm/arch-mb86r0x/mb86r0x.h | 573 +++++++++++++++++++++++
board/syteco/jadecpu/Makefile | 55 +++
board/syteco/jadecpu/config.mk | 1 +
board/syteco/jadecpu/jadecpu.c | 170 +++++++
board/syteco/jadecpu/lowlevel_init.S | 265 +++++++++++
boards.cfg | 1 +
common/serial.c | 6 +-
drivers/video/Makefile | 1 +
drivers/video/mb86r0xgdc.c | 186 ++++++++
include/configs/jadecpu.h | 294 ++++++++++++
include/serial.h | 6 +-
tools/Makefile | 3 +
tools/logos/syteco.bmp | Bin 0 -> 11414 bytes
21 files changed, 1936 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/Makefile
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/clock.c
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/reset.c
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/timer.c
create mode 100644 arch/arm/include/asm/arch-mb86r0x/asm-offsets.h
create mode 100644 arch/arm/include/asm/arch-mb86r0x/hardware.h
create mode 100644 arch/arm/include/asm/arch-mb86r0x/mb86r0x.h
create mode 100644 board/syteco/jadecpu/Makefile
create mode 100644 board/syteco/jadecpu/config.mk
create mode 100644 board/syteco/jadecpu/jadecpu.c
create mode 100644 board/syteco/jadecpu/lowlevel_init.S
create mode 100644 drivers/video/mb86r0xgdc.c
create mode 100644 include/configs/jadecpu.h
create mode 100644 tools/logos/syteco.bmp
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 1/3] arm: Add support for MB86R0x SoCs
2010-08-02 7:35 [U-Boot] [PATCH V5 0/3] Add support for MB86R0x SoCs Matthias Weisser
@ 2010-08-02 7:35 ` Matthias Weisser
2010-08-07 21:35 ` Wolfgang Denk
2010-08-02 7:35 ` [U-Boot] [PATCH V5 2/3] video: add support for display controller in " Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 3/3] arm: Add support for jadecpu board based on MB86R01 SoC Matthias Weisser
2 siblings, 1 reply; 7+ messages in thread
From: Matthias Weisser @ 2010-08-02 7:35 UTC (permalink / raw)
To: u-boot
This patch adds support for MB86R0x SoCs from Fujitsu
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
---
arch/arm/cpu/arm926ejs/mb86r0x/Makefile | 47 ++
arch/arm/cpu/arm926ejs/mb86r0x/clock.c | 45 ++
arch/arm/cpu/arm926ejs/mb86r0x/reset.c | 40 ++
arch/arm/cpu/arm926ejs/mb86r0x/timer.c | 139 ++++++
arch/arm/include/asm/arch-mb86r0x/asm-offsets.h | 74 +++
arch/arm/include/asm/arch-mb86r0x/hardware.h | 31 ++
arch/arm/include/asm/arch-mb86r0x/mb86r0x.h | 573 +++++++++++++++++++++++
common/serial.c | 6 +-
include/serial.h | 6 +-
9 files changed, 955 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/Makefile
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/clock.c
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/reset.c
create mode 100644 arch/arm/cpu/arm926ejs/mb86r0x/timer.c
create mode 100644 arch/arm/include/asm/arch-mb86r0x/asm-offsets.h
create mode 100644 arch/arm/include/asm/arch-mb86r0x/hardware.h
create mode 100644 arch/arm/include/asm/arch-mb86r0x/mb86r0x.h
diff --git a/arch/arm/cpu/arm926ejs/mb86r0x/Makefile b/arch/arm/cpu/arm926ejs/mb86r0x/Makefile
new file mode 100644
index 0000000..ce3e5a5
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mb86r0x/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at 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 = $(obj)lib$(SOC).a
+
+COBJS = clock.o reset.o timer.o
+SOBJS =
+
+SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/arm926ejs/mb86r0x/clock.c b/arch/arm/cpu/arm926ejs/mb86r0x/clock.c
new file mode 100644
index 0000000..6bb8920
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mb86r0x/clock.c
@@ -0,0 +1,45 @@
+/*
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.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>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+/*
+ * Get the peripheral bus frequency depending on pll pin settings
+ */
+ulong get_bus_freq(ulong dummy)
+{
+ struct mb86r0x_crg * crg = (struct mb86r0x_crg *)
+ MB86R0x_CRG_BASE;
+ uint32_t pllmode;
+
+ pllmode = readl(&crg->crpr) & MB86R0x_CRG_CRPR_PLLMODE;
+
+ if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X46)
+ return 41164767;
+ else if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X20)
+ return 40000000;
+
+ return 41164767;
+}
diff --git a/arch/arm/cpu/arm926ejs/mb86r0x/reset.c b/arch/arm/cpu/arm926ejs/mb86r0x/reset.c
new file mode 100644
index 0000000..e7f0f67
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mb86r0x/reset.c
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.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>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+/*
+ * Reset the cpu by setting software reset request bit
+ */
+void reset_cpu(ulong ignored)
+{
+ struct mb86r0x_crg * crg = (struct mb86r0x_crg *)
+ MB86R0x_CRG_BASE;
+
+ writel(MB86R0x_CRSR_SWRSTREQ, &crg->crsr);
+ while (1)
+ /* NOP */;
+ /* Never reached */
+}
diff --git a/arch/arm/cpu/arm926ejs/mb86r0x/timer.c b/arch/arm/cpu/arm926ejs/mb86r0x/timer.c
new file mode 100644
index 0000000..eb6c47c
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mb86r0x/timer.c
@@ -0,0 +1,139 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2010
+ * Matthias Weisser, Graf-Syteco <weisserm@arcor.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 <div64.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+#define TIMER_LOAD_VAL 0xffffffff
+#define TIMER_FREQ (CONFIG_MB86R0x_IOCLK / 256)
+
+static unsigned long long timestamp;
+static ulong lastdec;
+
+static inline unsigned long long tick_to_time(unsigned long long tick)
+{
+ tick *= CONFIG_SYS_HZ;
+ do_div(tick, TIMER_FREQ);
+
+ return tick;
+}
+
+static inline unsigned long long usec_to_tick(unsigned long long usec)
+{
+ usec *= TIMER_FREQ;
+ do_div(usec, 1000000);
+
+ return usec;
+}
+
+/* nothing really to do with interrupts, just starts up a counter. */
+int timer_init(void)
+{
+ struct mb86r0x_timer * timer = (struct mb86r0x_timer *)
+ MB86R0x_TIMER_BASE;
+ ulong ctrl = readl(&timer->control);
+
+ writel(TIMER_LOAD_VAL, &timer->load);
+
+ ctrl |= MB86R0x_TIMER_ENABLE | MB86R0x_TIMER_PRS_8S |
+ MB86R0x_TIMER_SIZE_32;
+
+ writel(ctrl, &timer->control);
+
+ reset_timer_masked();
+
+ return 0;
+}
+
+/*
+ * timer without interrupts
+ */
+unsigned long long get_ticks(void)
+{
+ struct mb86r0x_timer * timer = (struct mb86r0x_timer *)
+ MB86R0x_TIMER_BASE;
+ ulong now = readl(&timer->value);
+
+ if (now <= lastdec) /* normal mode (non roll) */
+ /* move stamp forward with absolut diff ticks */
+ timestamp += lastdec - now;
+ else /* we have rollover of incrementer */
+ timestamp += lastdec + TIMER_LOAD_VAL - now;
+ lastdec = now;
+ return timestamp;
+}
+
+void reset_timer_masked(void)
+{
+ struct mb86r0x_timer * timer = (struct mb86r0x_timer *)
+ MB86R0x_TIMER_BASE;
+
+ /* capture current value time */
+ lastdec = readl(&timer->value);
+ timestamp = 0; /* start "advancing" time stamp from 0 */
+}
+
+ulong get_timer_masked(void)
+{
+ return tick_to_time(get_ticks());
+}
+
+void __udelay(unsigned long usec)
+{
+ unsigned long long tmp;
+ ulong tmo;
+
+ tmo = usec_to_tick(usec);
+ tmp = get_ticks() + tmo; /* get current timestamp */
+
+ while (get_ticks() < tmp) /* loop till event */
+ /*NOP*/;
+}
+
+void reset_timer(void)
+{
+ reset_timer_masked();
+}
+
+ulong get_timer(ulong base)
+{
+ return get_timer_masked() - base;
+}
+
+/*
+ * 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;
+ return tbclk;
+}
diff --git a/arch/arm/include/asm/arch-mb86r0x/asm-offsets.h b/arch/arm/include/asm/arch-mb86r0x/asm-offsets.h
new file mode 100644
index 0000000..0bc5279
--- /dev/null
+++ b/arch/arm/include/asm/arch-mb86r0x/asm-offsets.h
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.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
+ */
+
+#ifndef ASM_OFFSETS_H
+#define ASM_OFFSETS_H
+
+/*
+ * Offset definitions for DDR controller
+ */
+#define DDR2_DRIC 0x00
+#define DDR2_DRIC1 0x02
+#define DDR2_DRIC2 0x04
+#define DDR2_DRCA 0x06
+#define DDR2_DRCM 0x08
+#define DDR2_DRCST1 0x0a
+#define DDR2_DRCST2 0x0c
+#define DDR2_DRCR 0x0e
+#define DDR2_DRCF 0x20
+#define DDR2_DRASR 0x30
+#define DDR2_DRIMS 0x50
+#define DDR2_DROS 0x60
+#define DDR2_DRIBSODT1 0x64
+#define DDR2_DROABA 0x70
+#define DDR2_DROBS 0x84
+
+/*
+ * Offset definitions Chip Control Module
+ */
+#define CCNT_CDCRC 0xec
+
+/*
+ * Offset definitions clock reset generator
+ */
+#define CRG_CRPR 0x00
+#define CRG_CRHA 0x18
+#define CRG_CRPA 0x1c
+#define CRG_CRPB 0x20
+#define CRG_CRHB 0x24
+#define CRG_CRAM 0x28
+
+/*
+ * Offset definitions External bus interface
+ */
+#define MEMC_MCFMODE0 0x00
+#define MEMC_MCFMODE2 0x08
+#define MEMC_MCFMODE4 0x10
+#define MEMC_MCFTIM0 0x20
+#define MEMC_MCFTIM2 0x28
+#define MEMC_MCFTIM4 0x30
+#define MEMC_MCFAREA0 0x40
+#define MEMC_MCFAREA2 0x48
+#define MEMC_MCFAREA4 0x50
+
+#endif /* ASM_OFFSETS_H */
diff --git a/arch/arm/include/asm/arch-mb86r0x/hardware.h b/arch/arm/include/asm/arch-mb86r0x/hardware.h
new file mode 100644
index 0000000..d1e57c0
--- /dev/null
+++ b/arch/arm/include/asm/arch-mb86r0x/hardware.h
@@ -0,0 +1,31 @@
+/*
+ * (C) Copyright 2007
+ *
+ * Author : Carsten Schneider, mycable GmbH
+ * <cs@mycable.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
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <asm/sizes.h>
+#include <asm/arch/mb86r0x.h>
+
+#endif
diff --git a/arch/arm/include/asm/arch-mb86r0x/mb86r0x.h b/arch/arm/include/asm/arch-mb86r0x/mb86r0x.h
new file mode 100644
index 0000000..36a28b7
--- /dev/null
+++ b/arch/arm/include/asm/arch-mb86r0x/mb86r0x.h
@@ -0,0 +1,573 @@
+/*
+ * (C) Copyright 2007
+ *
+ * mb86r0x definitions
+ *
+ * Author : Carsten Schneider, mycable GmbH
+ * <cs@mycable.de>
+ *
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.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
+ */
+
+#ifndef MB86R0X_H
+#define MB86R0X_H
+
+#ifndef __ASSEMBLY__
+
+/* GPIO registers */
+struct mb86r0x_gpio {
+ uint32_t gpdr0;
+ uint32_t gpdr1;
+ uint32_t gpdr2;
+ uint32_t res;
+ uint32_t gpddr0;
+ uint32_t gpddr1;
+ uint32_t gpddr2;
+};
+
+/* PWM registers */
+struct mb86r0x_pwm {
+ uint32_t bcr;
+ uint32_t tpr;
+ uint32_t pr;
+ uint32_t dr;
+ uint32_t cr;
+ uint32_t sr;
+ uint32_t ccr;
+ uint32_t ir;
+};
+
+/* The mb86r0x chip control (CCNT) register set. */
+struct mb86r0x_ccnt {
+ uint32_t ccid;
+ uint32_t csrst;
+ uint32_t pad0[2];
+ uint32_t cist;
+ uint32_t cistm;
+ uint32_t cgpio_ist;
+ uint32_t cgpio_istm;
+ uint32_t cgpio_ip;
+ uint32_t cgpio_im;
+ uint32_t caxi_bw;
+ uint32_t caxi_ps;
+ uint32_t cmux_md;
+ uint32_t cex_pin_st;
+ uint32_t cmlb;
+ uint32_t pad1[1];
+ uint32_t cusb;
+ uint32_t pad2[41];
+ uint32_t cbsc;
+ uint32_t cdcrc;
+ uint32_t cmsr0;
+ uint32_t cmsr1;
+ uint32_t pad3[2];
+};
+
+/* The mb86r0x clock reset generator */
+struct mb86r0x_crg {
+ uint32_t crpr;
+ uint32_t pad0;
+ uint32_t crwr;
+ uint32_t crsr;
+ uint32_t crda;
+ uint32_t crdb;
+ uint32_t crha;
+ uint32_t crpa;
+ uint32_t crpb;
+ uint32_t crhb;
+ uint32_t cram;
+};
+
+/* The mb86r0x timer */
+struct mb86r0x_timer {
+ uint32_t load;
+ uint32_t value;
+ uint32_t control;
+ uint32_t intclr;
+ uint32_t ris;
+ uint32_t mis;
+ uint32_t bgload;
+};
+
+/* mb86r0x gdc display controller */
+struct mb86r0x_gdc_dsp {
+ /* Display settings */
+ uint32_t dcm0;
+ uint16_t pad00;
+ uint16_t htp;
+ uint16_t hdp;
+ uint16_t hdb;
+ uint16_t hsp;
+ uint8_t hsw;
+ uint8_t vsw;
+ uint16_t pad01;
+ uint16_t vtr;
+ uint16_t vsp;
+ uint16_t vdp;
+ uint16_t wx;
+ uint16_t wy;
+ uint16_t ww;
+ uint16_t wh;
+
+ /* Layer 0 */
+ uint32_t l0m;
+ uint32_t l0oa;
+ uint32_t l0da;
+ uint16_t l0dx;
+ uint16_t l0dy;
+
+ /* Layer 1 */
+ uint32_t l1m;
+ uint32_t cbda0;
+ uint32_t cbda1;
+ uint32_t pad02;
+
+ /* Layer 2 */
+ uint32_t l2m;
+ uint32_t l2oa0;
+ uint32_t l2da0;
+ uint32_t l2oa1;
+ uint32_t l2da1;
+ uint16_t l2dx;
+ uint16_t l2dy;
+
+ /* Layer 3 */
+ uint32_t l3m;
+ uint32_t l3oa0;
+ uint32_t l3da0;
+ uint32_t l3oa1;
+ uint32_t l3da1;
+ uint16_t l3dx;
+ uint16_t l3dy;
+
+ /* Layer 4 */
+ uint32_t l4m;
+ uint32_t l4oa0;
+ uint32_t l4da0;
+ uint32_t l4oa1;
+ uint32_t l4da1;
+ uint16_t l4dx;
+ uint16_t l4dy;
+
+ /* Layer 5 */
+ uint32_t l5m;
+ uint32_t l5oa0;
+ uint32_t l5da0;
+ uint32_t l5oa1;
+ uint32_t l5da1;
+ uint16_t l5dx;
+ uint16_t l5dy;
+
+ /* Cursor */
+ uint16_t cutc;
+ uint8_t cpm;
+ uint8_t csize;
+ uint32_t cuoa0;
+ uint16_t cux0;
+ uint16_t cuy0;
+ uint32_t cuoa1;
+ uint16_t cux1;
+ uint16_t cuy1;
+
+ /* Layer blending */
+ uint32_t l0bld;
+ uint32_t pad03;
+ uint32_t l0tc;
+ uint16_t l3tc;
+ uint16_t l2tc;
+ uint32_t pad04[15];
+
+ /* Display settings */
+ uint32_t dcm1;
+ uint32_t dcm2;
+ uint32_t dcm3;
+ uint32_t pad05;
+
+ /* Layer 0 extended */
+ uint32_t l0em;
+ uint16_t l0wx;
+ uint16_t l0wy;
+ uint16_t l0ww;
+ uint16_t l0wh;
+ uint32_t pad06;
+
+ /* Layer 1 extended */
+ uint32_t l1em;
+ uint16_t l1wx;
+ uint16_t l1wy;
+ uint16_t l1ww;
+ uint16_t l1wh;
+ uint32_t pad07;
+
+ /* Layer 2 extended */
+ uint32_t l2em;
+ uint16_t l2wx;
+ uint16_t l2wy;
+ uint16_t l2ww;
+ uint16_t l2wh;
+ uint32_t pad08;
+
+ /* Layer 3 extended */
+ uint32_t l3em;
+ uint16_t l3wx;
+ uint16_t l3wy;
+ uint16_t l3ww;
+ uint16_t l3wh;
+ uint32_t pad09;
+
+ /* Layer 4 extended */
+ uint32_t l4em;
+ uint16_t l4wx;
+ uint16_t l4wy;
+ uint16_t l4ww;
+ uint16_t l4wh;
+ uint32_t pad10;
+
+ /* Layer 5 extended */
+ uint32_t l5em;
+ uint16_t l5wx;
+ uint16_t l5wy;
+ uint16_t l5ww;
+ uint16_t l5wh;
+ uint32_t pad11;
+
+ /* Multi screen control */
+ uint32_t msc;
+ uint32_t pad12[3];
+ uint32_t dls;
+ uint32_t dbgc;
+
+ /* Layer blending */
+ uint32_t l1bld;
+ uint32_t l2bld;
+ uint32_t l3bld;
+ uint32_t l4bld;
+ uint32_t l5bld;
+ uint32_t pad13;
+
+ /* Extended transparency control */
+ uint32_t l0etc;
+ uint32_t l1etc;
+ uint32_t l2etc;
+ uint32_t l3etc;
+ uint32_t l4etc;
+ uint32_t l5etc;
+ uint32_t pad14[10];
+
+ /* YUV coefficients */
+ uint32_t l1ycr0;
+ uint32_t l1ycr1;
+ uint32_t l1ycg0;
+ uint32_t l1ycg1;
+ uint32_t l1ycb0;
+ uint32_t l1ycb1;
+ uint32_t pad15[130];
+
+ /* Layer palletes */
+ uint32_t l0pal[256];
+ uint32_t l1pal[256];
+ uint32_t pad16[256];
+ uint32_t l2pal[256];
+ uint32_t l3pal[256];
+ uint32_t pad17[256];
+
+ /* PWM settings */
+ uint32_t vpwmm;
+ uint16_t vpwms;
+ uint16_t vpwme;
+ uint32_t vpwmc;
+ uint32_t pad18[253];
+};
+
+/* mb86r0x gdc capture controller */
+struct mb86r0x_gdc_cap {
+ uint32_t vcm;
+ uint32_t csc;
+ uint32_t vcs;
+ uint32_t pad01;
+
+ uint32_t cbm;
+ uint32_t cboa;
+ uint32_t cbla;
+ uint16_t cihstr;
+ uint16_t civstr;
+ uint16_t cihend;
+ uint16_t civend;
+ uint32_t pad02;
+
+ uint32_t chp;
+ uint32_t cvp;
+ uint32_t pad03[4];
+
+ uint32_t clpf;
+ uint32_t pad04;
+ uint32_t cmss;
+ uint32_t cmds;
+ uint32_t pad05[12];
+
+ uint32_t rgbhc;
+ uint32_t rgbhen;
+ uint32_t rgbven;
+ uint32_t pad06;
+ uint32_t rgbs;
+ uint32_t pad07[11];
+
+ uint32_t rgbcmy;
+ uint32_t rgbcmcb;
+ uint32_t rgbcmcr;
+ uint32_t rgbcmb;
+ uint32_t pad08[12 + 1984];
+};
+
+/* mb86r0x gdc draw */
+struct mb86r0x_gdc_draw {
+ uint32_t ys;
+ uint32_t xs;
+ uint32_t dxdy;
+ uint32_t xus;
+ uint32_t dxudy;
+ uint32_t xls;
+ uint32_t dxldy;
+ uint32_t usn;
+ uint32_t lsn;
+ uint32_t pad01[7];
+ uint32_t rs;
+ uint32_t drdx;
+ uint32_t drdy;
+ uint32_t gs;
+ uint32_t dgdx;
+ uint32_t dgdy;
+ uint32_t bs;
+ uint32_t dbdx;
+ uint32_t dbdy;
+ uint32_t pad02[7];
+ uint32_t zs;
+ uint32_t dzdx;
+ uint32_t dzdy;
+ uint32_t pad03[13];
+ uint32_t ss;
+ uint32_t dsdx;
+ uint32_t dsdy;
+ uint32_t ts;
+ uint32_t dtdx;
+ uint32_t dtdy;
+ uint32_t qs;
+ uint32_t dqdx;
+ uint32_t dqdy;
+ uint32_t pad04[23];
+ uint32_t lpn;
+ uint32_t lxs;
+ uint32_t lxde;
+ uint32_t lys;
+ uint32_t lyde;
+ uint32_t lzs;
+ uint32_t lzde;
+ uint32_t pad05[13];
+ uint32_t pxdc;
+ uint32_t pydc;
+ uint32_t pzdc;
+ uint32_t pad06[25];
+ uint32_t rxs;
+ uint32_t rys;
+ uint32_t rsizex;
+ uint32_t rsizey;
+ uint32_t pad07[12];
+ uint32_t saddr;
+ uint32_t sstride;
+ uint32_t srx;
+ uint32_t sry;
+ uint32_t daddr;
+ uint32_t dstride;
+ uint32_t drx;
+ uint32_t dry;
+ uint32_t brsizex;
+ uint32_t brsizey;
+ uint32_t tcolor;
+ uint32_t pad08[93];
+ uint32_t blpo;
+ uint32_t pad09[7];
+ uint32_t ctr;
+ uint32_t ifsr;
+ uint32_t ifcnt;
+ uint32_t sst;
+ uint32_t ds;
+ uint32_t pst;
+ uint32_t est;
+ uint32_t pad10;
+ uint32_t mdr0;
+ uint32_t mdr1;
+ uint32_t mdr2;
+ uint32_t mdr3;
+ uint32_t mdr4;
+ uint32_t pad14[2];
+ uint32_t mdr7;
+ uint32_t fbr;
+ uint32_t xres;
+ uint32_t zbr;
+ uint32_t tbr;
+ uint32_t pfbr;
+ uint32_t cxmin;
+ uint32_t cxmax;
+ uint32_t cymin;
+ uint32_t cymax;
+ uint32_t txs;
+ uint32_t tis;
+ uint32_t toa;
+ uint32_t sho;
+ uint32_t abr;
+ uint32_t pad15[2];
+ uint32_t fc;
+ uint32_t bc;
+ uint32_t alf;
+ uint32_t blp;
+ uint32_t pad16;
+ uint32_t tbc;
+ uint32_t pad11[42];
+ uint32_t lx0dc;
+ uint32_t ly0dc;
+ uint32_t lx1dc;
+ uint32_t ly1dc;
+ uint32_t pad12[12];
+ uint32_t x0dc;
+ uint32_t y0dc;
+ uint32_t x1dc;
+ uint32_t y1dc;
+ uint32_t x2dc;
+ uint32_t y2dc;
+ uint32_t pad13[666];
+};
+
+/* mb86r0x gdc geometry engine */
+struct mb86r0x_gdc_geom {
+ uint32_t gctr;
+ uint32_t pad00[15];
+ uint32_t gmdr0;
+ uint32_t gmdr1;
+ uint32_t gmdr2;
+ uint32_t pad01[237];
+ uint32_t dfifog;
+ uint32_t pad02[767];
+};
+
+/* mb86r0x gdc */
+struct mb86r0x_gdc {
+ uint32_t pad00[2];
+ uint32_t lts;
+ uint32_t pad01;
+ uint32_t lsta;
+ uint32_t pad02[3];
+ uint32_t ist;
+ uint32_t imask;
+ uint32_t pad03[6];
+ uint32_t lsa;
+ uint32_t lco;
+ uint32_t lreq;
+
+ uint32_t pad04[16*1024 - 19];
+ struct mb86r0x_gdc_dsp dsp0;
+ struct mb86r0x_gdc_dsp dsp1;
+ uint32_t pad05[4*1024 - 2];
+ uint32_t vccc;
+ uint32_t vcsr;
+ struct mb86r0x_gdc_cap cap0;
+ struct mb86r0x_gdc_cap cap1;
+ uint32_t pad06[4*1024];
+ uint32_t texture_base[16*1024];
+ struct mb86r0x_gdc_draw draw;
+ uint32_t pad07[7*1024];
+ struct mb86r0x_gdc_geom geom;
+ uint32_t pad08[7*1024];
+};
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * Physical Address Defines
+ */
+#define MB86R0x_DDR2_BASE 0xf3000000
+#define MB86R0x_GDC_BASE 0xf1fc0000
+#define MB86R0x_CCNT_BASE 0xfff42000
+#define MB86R0x_CAN0_BASE 0xfff54000
+#define MB86R0x_CAN1_BASE 0xfff55000
+#define MB86R0x_I2C0_BASE 0xfff56000
+#define MB86R0x_I2C1_BASE 0xfff57000
+#define MB86R0x_EHCI_BASE 0xfff80000
+#define MB86R0x_OHCI_BASE 0xfff81000
+#define MB86R0x_IRC1_BASE 0xfffb0000
+#define MB86R0x_MEMC_BASE 0xfffc0000
+#define MB86R0x_TIMER_BASE 0xfffe0000
+#define MB86R0x_UART0_BASE 0xfffe1000
+#define MB86R0x_UART1_BASE 0xfffe2000
+#define MB86R0x_IRCE_BASE 0xfffe4000
+#define MB86R0x_CRG_BASE 0xfffe7000
+#define MB86R0x_IRC0_BASE 0xfffe8000
+#define MB86R0x_GPIO_BASE 0xfffe9000
+#define MB86R0x_PWM0_BASE 0xfff41000
+#define MB86R0x_PWM1_BASE 0xfff41100
+
+#define MB86R0x_CRSR_SWRSTREQ (1 << 1)
+
+/*
+ * Timer register bits
+ */
+#define MB86R0x_TIMER_ENABLE (1 << 7)
+#define MB86R0x_TIMER_MODE_MSK (1 << 6)
+#define MB86R0x_TIMER_MODE_FR (0 << 6)
+#define MB86R0x_TIMER_MODE_PD (1 << 6)
+
+#define MB86R0x_TIMER_INT_EN (1 << 5)
+#define MB86R0x_TIMER_PRS_MSK (3 << 2)
+#define MB86R0x_TIMER_PRS_4S (1 << 2)
+#define MB86R0x_TIMER_PRS_8S (1 << 3)
+#define MB86R0x_TIMER_SIZE_32 (1 << 1)
+#define MB86R0x_TIMER_ONE_SHT (1 << 0)
+
+/*
+ * Clock reset generator bits
+ */
+#define MB86R0x_CRG_CRPR_PLLRDY (1 << 8)
+#define MB86R0x_CRG_CRPR_PLLMODE (0x1f << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X49 (0 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X46 (1 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X37 (2 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X20 (3 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X47 (4 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X44 (5 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X36 (6 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X19 (7 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X39 (8 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X38 (9 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X30 (10 << 0)
+#define MB86R0x_CRG_CRPR_PLLMODE_X15 (11 << 0)
+/*
+ * DDR2 controller bits
+ */
+#define MB86R0x_DDR2_DRCI_DRINI (1 << 15)
+#define MB86R0x_DDR2_DRCI_CKEN (1 << 14)
+#define MB86R0x_DDR2_DRCI_DRCMD (1 << 0)
+#define MB86R0x_DDR2_DRCI_CMD (MB86R0x_DDR2_DRCI_DRINI | \
+ MB86R0x_DDR2_DRCI_CKEN | \
+ MB86R0x_DDR2_DRCI_DRCMD)
+#define MB86R0x_DDR2_DRCI_INIT (MB86R0x_DDR2_DRCI_DRINI | \
+ MB86R0x_DDR2_DRCI_CKEN)
+#define MB86R0x_DDR2_DRCI_NORMAL MB86R0x_DDR2_DRCI_CKEN
+#endif /* MB86R0X_H */
diff --git a/common/serial.c b/common/serial.c
index fceabfa..6718648 100644
--- a/common/serial.c
+++ b/common/serial.c
@@ -40,9 +40,9 @@ struct serial_device *__default_serial_console (void)
return &serial_scc_device;
#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
|| defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
- || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
- || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) \
- || defined(CONFIG_SYS_SC520)
+ || defined(CONFIG_MB86R0x) || defined(CONFIG_MPC5xxx) \
+ || defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) \
+ || defined(CONFIG_MPC86xx) || defined(CONFIG_SYS_SC520)
#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
#if (CONFIG_CONS_INDEX==1)
return &eserial1_device;
diff --git a/include/serial.h b/include/serial.h
index 6513d8e..fc38469 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -25,9 +25,9 @@ extern struct serial_device * default_serial_console (void);
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || \
defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) || \
- defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) || \
- defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) || \
- defined(CONFIG_SYS_SC520)
+ defined(CONFIG_MB86R0x) || defined(CONFIG_MPC5xxx) || \
+ defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \
+ defined(CONFIG_MPC86xx) || defined(CONFIG_SYS_SC520)
extern struct serial_device serial0_device;
extern struct serial_device serial1_device;
#if defined(CONFIG_SYS_NS16550_SERIAL)
--
1.7.0.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 2/3] video: add support for display controller in MB86R0x SoCs
2010-08-02 7:35 [U-Boot] [PATCH V5 0/3] Add support for MB86R0x SoCs Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 1/3] arm: " Matthias Weisser
@ 2010-08-02 7:35 ` Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 3/3] arm: Add support for jadecpu board based on MB86R01 SoC Matthias Weisser
2 siblings, 0 replies; 7+ messages in thread
From: Matthias Weisser @ 2010-08-02 7:35 UTC (permalink / raw)
To: u-boot
This patch adds support for the display controller in
the MB86R0x SoCs.
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
---
drivers/video/Makefile | 1 +
drivers/video/mb86r0xgdc.c | 186 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 187 insertions(+), 0 deletions(-)
create mode 100644 drivers/video/mb86r0xgdc.c
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 7d84fc7..4be82e7 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -32,6 +32,7 @@ COBJS-$(CONFIG_S6E63D6) += s6e63d6.o
COBJS-$(CONFIG_VIDEO_AMBA) += amba.o
COBJS-$(CONFIG_VIDEO_CT69000) += ct69000.o videomodes.o
COBJS-$(CONFIG_VIDEO_MB862xx) += mb862xx.o videomodes.o
+COBJS-$(CONFIG_VIDEO_MB86R0xGDC) += mb86r0xgdc.o videomodes.o
COBJS-$(CONFIG_VIDEO_MX3) += mx3fb.o
COBJS-$(CONFIG_VIDEO_SED13806) += sed13806.o
COBJS-$(CONFIG_SED156X) += sed156x.o
diff --git a/drivers/video/mb86r0xgdc.c b/drivers/video/mb86r0xgdc.c
new file mode 100644
index 0000000..3bdc1db
--- /dev/null
+++ b/drivers/video/mb86r0xgdc.c
@@ -0,0 +1,186 @@
+/*
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.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
+ */
+
+/*
+ * mb86r0xgdc.c - Graphic interface for Fujitsu MB86R0x integrated graphic
+ * controller.
+ */
+
+#include <common.h>
+
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <video_fb.h>
+#include "videomodes.h"
+
+/*
+ * 4MB (at the end of system RAM)
+ */
+#define VIDEO_MEM_SIZE 0x400000
+
+#define FB_SYNC_CLK_INV (1<<16) /* pixel clock inverted */
+
+/*
+ * Graphic Device
+ */
+static GraphicDevice mb86r0x;
+
+static void dsp_init(struct mb86r0x_gdc_dsp *dsp, char *modestr,
+ u32 *videomem)
+{
+ struct ctfb_res_modes var_mode;
+ u32 dcm1, dcm2, dcm3;
+ u16 htp, hdp, hdb, hsp, vtr, vsp, vdp;
+ u8 hsw, vsw;
+ u32 l2m, l2em, l2oa0, l2da0, l2oa1, l2da1;
+ u16 l2dx, l2dy, l2wx, l2wy, l2ww, l2wh;
+ unsigned long div;
+ int bpp;
+ u32 i;
+
+ bpp = video_get_params(&var_mode, modestr);
+
+ if (bpp == 0) {
+ var_mode.xres = 640;
+ var_mode.yres = 480;
+ var_mode.pixclock = 39721; /* 25MHz */
+ var_mode.left_margin = 48;
+ var_mode.right_margin = 16;
+ var_mode.upper_margin = 33;
+ var_mode.lower_margin = 10;
+ var_mode.hsync_len = 96;
+ var_mode.vsync_len = 2;
+ var_mode.sync = 0;
+ var_mode.vmode = 0;
+ bpp = 15;
+ }
+
+ /* Fill memory with white */
+ for (i = 0; i < var_mode.xres * var_mode.yres / 2; i++)
+ *videomem++ = 0xFFFFFFFF;
+
+ mb86r0x.winSizeX = var_mode.xres;
+ mb86r0x.winSizeY = var_mode.yres;
+
+ /* LCD base clock is ~ 660MHZ. We do calculations in kHz */
+ div = 660000 / (1000000000L / var_mode.pixclock);
+ if (div > 64)
+ div = 64;
+ if (0 == div)
+ div = 1;
+
+ dcm1 = (div - 1) << 8;
+ dcm2 = 0x00000000;
+ if (var_mode.sync & FB_SYNC_CLK_INV)
+ dcm3 = 0x00000100;
+ else
+ dcm3 = 0x00000000;
+
+ htp = var_mode.left_margin + var_mode.xres +
+ var_mode.hsync_len + var_mode.right_margin;
+ hdp = var_mode.xres;
+ hdb = var_mode.xres;
+ hsp = var_mode.xres + var_mode.right_margin;
+ hsw = var_mode.hsync_len;
+
+ vsw = var_mode.vsync_len;
+ vtr = var_mode.upper_margin + var_mode.yres +
+ var_mode.vsync_len + var_mode.lower_margin;
+ vsp = var_mode.yres + var_mode.lower_margin;
+ vdp = var_mode.yres;
+
+ l2m = ((var_mode.yres - 1) << (0)) |
+ (((var_mode.xres * 2) / 64) << (16)) |
+ ((1) << (31));
+
+ l2em = (1 << 0) | (1 << 1);
+
+ l2oa0 = mb86r0x.frameAdrs;
+ l2da0 = mb86r0x.frameAdrs;
+ l2oa1 = mb86r0x.frameAdrs;
+ l2da1 = mb86r0x.frameAdrs;
+ l2dx = 0;
+ l2dy = 0;
+ l2wx = 0;
+ l2wy = 0;
+ l2ww = var_mode.xres;
+ l2wh = var_mode.yres - 1;
+
+ writel(dcm1, &dsp->dcm1);
+ writel(dcm2, &dsp->dcm2);
+ writel(dcm3, &dsp->dcm3);
+
+ writew(htp, &dsp->htp);
+ writew(hdp, &dsp->hdp);
+ writew(hdb, &dsp->hdb);
+ writew(hsp, &dsp->hsp);
+ writeb(hsw, &dsp->hsw);
+
+ writeb(vsw, &dsp->vsw);
+ writew(vtr, &dsp->vtr);
+ writew(vsp, &dsp->vsp);
+ writew(vdp, &dsp->vdp);
+
+ writel(l2m, &dsp->l2m);
+ writel(l2em, &dsp->l2em);
+ writel(l2oa0, &dsp->l2oa0);
+ writel(l2da0, &dsp->l2da0);
+ writel(l2oa1, &dsp->l2oa1);
+ writel(l2da1, &dsp->l2da1);
+ writew(l2dx, &dsp->l2dx);
+ writew(l2dy, &dsp->l2dy);
+ writew(l2wx, &dsp->l2wx);
+ writew(l2wy, &dsp->l2wy);
+ writew(l2ww, &dsp->l2ww);
+ writew(l2wh, &dsp->l2wh);
+
+ writel(dcm1 | (1 << 18) | (1 << 31), &dsp->dcm1);
+}
+
+void *video_hw_init(void)
+{
+ struct mb86r0x_gdc *gdc = (struct mb86r0x_gdc *) MB86R0x_GDC_BASE;
+ GraphicDevice *pGD = &mb86r0x;
+ char *s;
+ u32 *vid;
+
+ memset(pGD, 0, sizeof(GraphicDevice));
+
+ pGD->gdfIndex = GDF_15BIT_555RGB;
+ pGD->gdfBytesPP = 2;
+ pGD->memSize = VIDEO_MEM_SIZE;
+ pGD->frameAdrs = PHYS_SDRAM + PHYS_SDRAM_SIZE - VIDEO_MEM_SIZE;
+
+ vid = (u32 *)pGD->frameAdrs;
+
+ s = getenv("videomode");
+ if (s != NULL)
+ dsp_init(&gdc->dsp0, s, vid);
+
+ s = getenv("videomode1");
+ if (s != NULL)
+ dsp_init(&gdc->dsp1, s, vid);
+
+ return pGD;
+}
--
1.7.0.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 3/3] arm: Add support for jadecpu board based on MB86R01 SoC
2010-08-02 7:35 [U-Boot] [PATCH V5 0/3] Add support for MB86R0x SoCs Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 1/3] arm: " Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 2/3] video: add support for display controller in " Matthias Weisser
@ 2010-08-02 7:35 ` Matthias Weisser
2 siblings, 0 replies; 7+ messages in thread
From: Matthias Weisser @ 2010-08-02 7:35 UTC (permalink / raw)
To: u-boot
This patch adds support for the jadecpu board using the
MB86R01 'Jade' SoC from Fujitsu.
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
---
MAINTAINERS | 4 +
MAKEALL | 1 +
board/syteco/jadecpu/Makefile | 55 +++++++
board/syteco/jadecpu/config.mk | 1 +
board/syteco/jadecpu/jadecpu.c | 170 ++++++++++++++++++++
board/syteco/jadecpu/lowlevel_init.S | 265 ++++++++++++++++++++++++++++++
boards.cfg | 1 +
include/configs/jadecpu.h | 294 ++++++++++++++++++++++++++++++++++
tools/Makefile | 3 +
tools/logos/syteco.bmp | Bin 0 -> 11414 bytes
10 files changed, 794 insertions(+), 0 deletions(-)
create mode 100644 board/syteco/jadecpu/Makefile
create mode 100644 board/syteco/jadecpu/config.mk
create mode 100644 board/syteco/jadecpu/jadecpu.c
create mode 100644 board/syteco/jadecpu/lowlevel_init.S
create mode 100644 include/configs/jadecpu.h
create mode 100644 tools/logos/syteco.bmp
diff --git a/MAINTAINERS b/MAINTAINERS
index 4b91b0f..39ad70d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -806,6 +806,10 @@ Prafulla Wadaskar <prafulla@marvell.com>
rd6281a ARM926EJS (Kirkwood SoC)
sheevaplug ARM926EJS (Kirkwood SoC)
+Matthias Weisser <matthias.weisser@graf-syteco.de>
+
+ jadecpu ARM926EJS (MB86R01 SoC)
+
Richard Woodruff <r-woodruff2@ti.com>
omap2420h4 ARM1136EJS
diff --git a/MAKEALL b/MAKEALL
index 2133559..b6e8299 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -578,6 +578,7 @@ LIST_ARM9=" \
edminiv2 \
guruplug \
imx27lite \
+ jadecpu \
lpd7a400 \
magnesium \
mv88f6281gtw_ge \
diff --git a/board/syteco/jadecpu/Makefile b/board/syteco/jadecpu/Makefile
new file mode 100644
index 0000000..87d2234
--- /dev/null
+++ b/board/syteco/jadecpu/Makefile
@@ -0,0 +1,55 @@
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian.pop@leadtechdesign.com>
+# Lead Tech Design <www.leadtechdesign.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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS-y += jadecpu.o
+SOBJS := lowlevel_init.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS-y))
+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/syteco/jadecpu/config.mk b/board/syteco/jadecpu/config.mk
new file mode 100644
index 0000000..c661f0b
--- /dev/null
+++ b/board/syteco/jadecpu/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x46000000
diff --git a/board/syteco/jadecpu/jadecpu.c b/board/syteco/jadecpu/jadecpu.c
new file mode 100644
index 0000000..04d2f9d
--- /dev/null
+++ b/board/syteco/jadecpu/jadecpu.c
@@ -0,0 +1,170 @@
+/*
+ * (c) 2010 Graf-Syteco, Matthias Weisser
+ * <weisserm@arcor.de>
+ *
+ * (C) Copyright 2007, mycable GmbH
+ * Carsten Schneider <cs@mycable.de>, Alexander Bigga <ab@mycable.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/mb86r0x.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+int board_init(void)
+{
+ struct mb86r0x_ccnt * ccnt = (struct mb86r0x_ccnt *)
+ MB86R0x_CCNT_BASE;
+
+ /* We select mode 0 for group 2 and mode 1 for group 4 */
+ writel(0x00000010, &ccnt->cmux_md);
+
+ gd->flags = 0;
+ gd->bd->bi_arch_number = MACH_TYPE_JADECPU;
+ gd->bd->bi_boot_params = PHYS_SDRAM + PHYS_SDRAM_SIZE - 0x10000;
+
+ icache_enable();
+
+ return 0;
+}
+
+static void setup_display_power(uint32_t pwr_bit, char *pwm_opts,
+ unsigned long pwm_base)
+{
+ struct mb86r0x_gpio *gpio = (struct mb86r0x_gpio *)
+ MB86R0x_GPIO_BASE;
+ struct mb86r0x_pwm *pwm = (struct mb86r0x_pwm *) pwm_base;
+ const char *e;
+
+ writel(readl(&gpio->gpdr2) | pwr_bit, &gpio->gpdr2);
+
+ e = getenv(pwm_opts);
+ if (e != NULL) {
+ const char *s;
+ uint32_t freq, init;
+
+ freq = 0;
+ init = 0;
+
+ s = strchr(e, 'f');
+ if (s != NULL)
+ freq = simple_strtol(s + 2, NULL, 0);
+
+ s = strchr(e, 'i');
+ if (s != NULL)
+ init = simple_strtol(s + 2, NULL, 0);
+
+ if (freq > 0) {
+ writel(CONFIG_MB86R0x_IOCLK / 1000 / freq,
+ &pwm->bcr);
+ writel(1002, &pwm->tpr);
+ writel(1, &pwm->pr);
+ writel(init * 10 + 1, &pwm->dr);
+ writel(1, &pwm->cr);
+ writel(1, &pwm->sr);
+ }
+ }
+}
+
+int board_late_init(void)
+{
+ struct mb86r0x_gpio *gpio = (struct mb86r0x_gpio *)
+ MB86R0x_GPIO_BASE;
+ uint32_t in_word;
+
+#ifdef CONFIG_VIDEO_MB86R0xGDC
+ /* Check if we have valid display settings and turn on power if so */
+ /* Display 0 */
+ if (getenv("gs_dsp_0_param") || getenv("videomode"))
+ setup_display_power((1 << 3), "gs_dsp_0_pwm",
+ MB86R0x_PWM0_BASE);
+
+ /* The corresponding GPIO is always an output */
+ writel(readl(&gpio->gpddr2) | (1 << 3), &gpio->gpddr2);
+
+ /* Display 1 */
+ if (getenv("gs_dsp_1_param") || getenv("videomode1"))
+ setup_display_power((1 << 4), "gs_dsp_1_pwm",
+ MB86R0x_PWM1_BASE);
+
+ /* The corresponding GPIO is always an output */
+ writel(readl(&gpio->gpddr2) | (1 << 4), &gpio->gpddr2);
+#endif /* CONFIG_VIDEO_MB86R0xGDC */
+
+ /* 5V enable */
+ writel(readl(&gpio->gpdr1) & ~(1 << 5), &gpio->gpdr1);
+ writel(readl(&gpio->gpddr1) | (1 << 5), &gpio->gpddr1);
+
+ /* We have special boot options if told by GPIOs */
+ in_word = readl(&gpio->gpdr1);
+
+ if ((in_word & 0xC0) == 0xC0) {
+ setenv("stdin", "serial");
+ setenv("stdout", "serial");
+ setenv("stderr", "serial");
+ setenv("preboot", "run gs_slow_boot");
+ } else if ((in_word & 0xC0) != 0) {
+ setenv("stdout", "vga");
+ setenv("gs_bootcmd", "mw.l 0x40000000 0 1024; usb start;"
+ "fatls usb 0; fatload usb 0 0x40000000 mcq5resq.bin;"
+ "bootelf 0x40000000; bootelf 0x10080000");
+ setenv("preboot", "run gs_slow_boot");
+ } else {
+ setenv("stdin", "serial");
+ setenv("stdout", "serial");
+ setenv("stderr", "serial");
+ if (getenv("gs_devel")) {
+ setenv("preboot", "run gs_slow_boot");
+ } else {
+ setenv("gs_bootcmd", "bootelf 0x10080000");
+ setenv("preboot", "run gs_fast_boot");
+ }
+ }
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ return 0;
+}
+
+/*
+ * DRAM configuration
+ */
+int dram_init(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_SMC911X
+ rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+ return rc;
+}
diff --git a/board/syteco/jadecpu/lowlevel_init.S b/board/syteco/jadecpu/lowlevel_init.S
new file mode 100644
index 0000000..5ad4dce
--- /dev/null
+++ b/board/syteco/jadecpu/lowlevel_init.S
@@ -0,0 +1,265 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2007, mycable GmbH
+ * Carsten Schneider <cs@mycable.de>, Alexander Bigga <ab@mycable.de>
+ *
+ * (C) Copyright 2003, ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.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 <config.h>
+#include <version.h>
+#include <asm/macro.h>
+#include <asm/arch/mb86r0x.h>
+#include <asm/arch/asm-offsets.h>
+
+/* Set up the platform, once the cpu has been initialized */
+.globl lowlevel_init
+lowlevel_init:
+/*
+ * Initialize Clock Reset Generator (CRG)
+ */
+
+ ldr r0, =MB86R0x_CRG_BASE
+
+ /* Not change the initial value that is set by external pin.*/
+WAIT_PLL:
+ ldr r2, [r0, #CRG_CRPR] /* Wait for PLLREADY */
+ tst r2, #MB86R0x_CRG_CRPR_PLLRDY
+ beq WAIT_PLL
+
+ /* Set clock gate control */
+ ldr r1, =CONFIG_SYS_CRG_CRHA_INIT
+ str r1, [r0, #CRG_CRHA]
+ ldr r1, =CONFIG_SYS_CRG_CRPA_INIT
+ str r1, [r0, #CRG_CRPA]
+ ldr r1, =CONFIG_SYS_CRG_CRPB_INIT
+ str r1, [r0, #CRG_CRPB]
+ ldr r1, =CONFIG_SYS_CRG_CRHB_INIT
+ str r1, [r0, #CRG_CRHB]
+ ldr r1, =CONFIG_SYS_CRG_CRAM_INIT
+ str r1, [r0, #CRG_CRAM]
+
+/*
+ * Initialize External Bus Interface
+ */
+ ldr r0, =MB86R0x_MEMC_BASE
+
+ ldr r1, =CONFIG_SYS_MEMC_MCFMODE0_INIT
+ str r1, [r0, #MEMC_MCFMODE0]
+ ldr r1, =CONFIG_SYS_MEMC_MCFMODE2_INIT
+ str r1, [r0, #MEMC_MCFMODE2]
+ ldr r1, =CONFIG_SYS_MEMC_MCFMODE4_INIT
+ str r1, [r0, #MEMC_MCFMODE4]
+
+ ldr r1, =CONFIG_SYS_MEMC_MCFTIM0_INIT
+ str r1, [r0, #MEMC_MCFTIM0]
+ ldr r1, =CONFIG_SYS_MEMC_MCFTIM2_INIT
+ str r1, [r0, #MEMC_MCFTIM2]
+ ldr r1, =CONFIG_SYS_MEMC_MCFTIM4_INIT
+ str r1, [r0, #MEMC_MCFTIM4]
+
+ ldr r1, =CONFIG_SYS_MEMC_MCFAREA0_INIT
+ str r1, [r0, #MEMC_MCFAREA0]
+ ldr r1, =CONFIG_SYS_MEMC_MCFAREA2_INIT
+ str r1, [r0, #MEMC_MCFAREA2]
+ ldr r1, =CONFIG_SYS_MEMC_MCFAREA4_INIT
+ str r1, [r0, #MEMC_MCFAREA4]
+
+/*
+ * Initialize DDR2 Controller
+ */
+
+ /* Wait for PLL LOCK up time or more */
+ wait_timer 20
+
+ /*
+ * (2) Initialize DDRIF
+ */
+ ldr r0, =MB86R0x_DDR2_BASE
+ ldr r1, =CONFIG_SYS_DDR2_DRIMS_INIT
+ strh r1, [r0, #DDR2_DRIMS]
+
+ /*
+ * (3) Wait for 20MCKPs(120nsec) or more
+ */
+ wait_timer 20
+
+ /*
+ * (4) IRESET/IUSRRST release
+ */
+ ldr r0, =MB86R0x_CCNT_BASE
+ ldr r1, =CONFIG_SYS_CCNT_CDCRC_INIT_1
+ str r1, [r0, #CCNT_CDCRC]
+
+ /*
+ * (5) Wait for 20MCKPs(120nsec) or more
+ */
+ wait_timer 20
+
+ /*
+ * (6) IDLLRST release
+ */
+ ldr r0, =MB86R0x_CCNT_BASE
+ ldr r1, =CONFIG_SYS_CCNT_CDCRC_INIT_2
+ str r1, [r0, #CCNT_CDCRC]
+
+ /*
+ * (7+8) Wait for 200us(=200000ns) or more (DDR2 Spec)
+ */
+ wait_timer 33536
+
+ /*
+ * (9) MCKE ON
+ */
+ ldr r0, =MB86R0x_DDR2_BASE
+ ldr r1, =CONFIG_SYS_DDR2_DRIC1_INIT
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_DRIC2_INIT
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =CONFIG_SYS_DDR2_DRCA_INIT
+ strh r1, [r0, #DDR2_DRCA]
+ ldr r1, =MB86R0x_DDR2_DRCI_INIT
+ strh r1, [r0, #DDR2_DRIC]
+
+ /*
+ * (10) Initialize SDRAM
+ */
+
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ wait_timer 67 /* 400ns wait */
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_1
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_1
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_2
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_2
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_3
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_3
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_4
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_4
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_5
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_5
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ wait_timer 200
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_6
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_6
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_7
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_7
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ wait_timer 18 /* 105ns wait */
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_8
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_8
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ wait_timer 200 /* MRS to OCD: 200clock */
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_9
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_9
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC1_10
+ strh r1, [r0, #DDR2_DRIC1]
+ ldr r1, =CONFIG_SYS_DDR2_INIT_DRIC2_10
+ strh r1, [r0, #DDR2_DRIC2]
+ ldr r1, =MB86R0x_DDR2_DRCI_CMD
+ strh r1, [r0, #DDR2_DRIC]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRCM_INIT
+ strh r1, [r0, #DDR2_DRCM]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRCST1_INIT
+ strh r1, [r0, #DDR2_DRCST1]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRCST2_INIT
+ strh r1, [r0, #DDR2_DRCST2]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRCR_INIT
+ strh r1, [r0, #DDR2_DRCR]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRCF_INIT
+ strh r1, [r0, #DDR2_DRCF]
+
+ ldr r1, =CONFIG_SYS_DDR2_DRASR_INIT
+ strh r1, [r0, #DDR2_DRASR]
+
+ /*
+ * (11) ODT setting
+ */
+ ldr r1, =CONFIG_SYS_DDR2_DROBS_INIT
+ strh r1, [r0, #DDR2_DROBS]
+ ldr r1, =CONFIG_SYS_DDR2_DROABA_INIT
+ strh r1, [r0, #DDR2_DROABA]
+ ldr r1, =CONFIG_SYS_DDR2_DRIBSODT1_INIT
+ strh r1, [r0, #DDR2_DRIBSODT1]
+
+ /*
+ * (12) Shift to ODTCONT ON (SDRAM side) and DDR2 usual operation mode
+ */
+ ldr r1, =CONFIG_SYS_DDR2_DROS_INIT
+ strh r1, [r0, #DDR2_DROS]
+ ldr r1, =MB86R0x_DDR2_DRCI_NORMAL
+ strh r1, [r0, #DDR2_DRIC]
+
+ mov pc, lr
diff --git a/boards.cfg b/boards.cfg
index b82f530..33e7d18 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -43,6 +43,7 @@ meesc arm arm926ejs - esd at91
otc570 arm arm926ejs - esd at91
pm9261 arm arm926ejs - ronetix at91
pm9263 arm arm926ejs - ronetix at91
+jadecpu arm arm926ejs jadecpu syteco mb86r0x
suen3 arm arm926ejs km_arm keymile kirkwood
rd6281a arm arm926ejs - Marvell kirkwood
mx51evk arm armv7 mx51evk freescale mx51
diff --git a/include/configs/jadecpu.h b/include/configs/jadecpu.h
new file mode 100644
index 0000000..bfc60a6
--- /dev/null
+++ b/include/configs/jadecpu.h
@@ -0,0 +1,294 @@
+/*
+ * (C) Copyright 2010
+ * Matthias Weisser <weisserm@arcor.de>
+ *
+ * Configuation settings for the jadecpu board
+ *
+ * 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 __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_MB86R0x
+#define CONFIG_MB86R0x_IOCLK get_bus_freq(0)
+#define CONFIG_SYS_HZ 1000
+
+#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
+#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
+
+/*
+ * Environment settings
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "gs_fast_boot=setenv bootdelay 5\0" \
+ "gs_slow_boot=setenv bootdelay 10\0" \
+ "bootcmd=mw.l 0x40000000 0 1024; usb start;" \
+ "fatls usb 0; fatload usb 0 0x40000000 jadecpu-init.bin;" \
+ "bootelf 0x40000000\0" \
+ ""
+
+#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG 1
+#define BOARD_LATE_INIT 1
+
+/*
+ * Hardware drivers
+ */
+
+/*
+ * Serial
+ */
+#define CONFIG_SERIAL_MULTI
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE (-4)
+#define CONFIG_SYS_NS16550_CLK get_bus_freq(0)
+#define CONFIG_SYS_NS16550_COM1 0xfffe1000 /* UART 0 */
+#define CONFIG_SYS_NS16550_COM2 0xfff50000 /* UART 2 */
+#define CONFIG_SYS_NS16550_COM3 0xfff51000 /* UART 3 */
+#define CONFIG_SYS_NS16550_COM4 0xfff43000 /* UART 4 */
+
+#define CONFIG_CONS_INDEX 4
+
+/*
+ * Ethernet
+ */
+#define CONFIG_NET_MULTI
+#define CONFIG_SMC911X
+#define CONFIG_SMC911X_BASE 0x02000000
+#define CONFIG_SMC911X_16_BIT
+
+/*
+ * CAN
+ */
+#define CONFIG_CAN_CCAN
+#define CONFIG_CAN_CCAN_BASE 0xfff54000
+#define CONFIG_CAN_CCAN_CLOCK get_bus_freq(0)
+/*
+ * Video
+ */
+#define CONFIG_VIDEO
+#define CONFIG_VIDEO_MB86R0xGDC
+#define CONFIG_SYS_WHITE_ON_BLACK
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE
+#define CONFIG_VIDEO_LOGO
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_SPLASH_SCREEN_ALIGN
+#define CONFIG_VIDEO_BMP_LOGO
+#define CONFIG_VIDEO_BMP_GZIP
+#define CONFIG_VIDEO_BMP_RLE8
+#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (800*480 + 256*4 + 10*1024)
+#define VIDEO_FB_16BPP_WORD_SWAP
+#define VIDEO_KBD_INIT_FCT 0
+#define VIDEO_TSTC_FCT serial_tstc
+#define VIDEO_GETC_FCT serial_getc
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE 1
+#define CONFIG_BOOTP_BOOTPATH 1
+#define CONFIG_BOOTP_GATEWAY 1
+#define CONFIG_BOOTP_HOSTNAME 1
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_SOURCE
+#undef CONFIG_CMD_NFS
+#undef CONFIG_CMD_XIMG
+
+#define CONFIG_CMD_BMP 1
+#define CONFIG_CMD_CAN 1
+#define CONFIG_CMD_DHCP 1
+#define CONFIG_CMD_ELF 1
+#define CONFIG_CMD_FAT 1
+#define CONFIG_CMD_IMI 1
+#define CONFIG_CMD_PING 1
+#define CONFIG_CMD_USB 1
+
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+
+/* USB */
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_REGS_BASE 0xFFF81000
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME "mb86r0x"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1
+#define CONFIG_USB_STORAGE
+#define CONFIG_DOS_PARTITION
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM 0x40000000 /* Start address of DDRRAM */
+#define PHYS_SDRAM_SIZE 0x08000000 /* 128 megs */
+
+/*
+ * FLASH and environment organization
+ */
+#define CONFIG_SYS_FLASH_BASE 0x10000000
+#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#define CONFIG_SYS_MAX_FLASH_SECT 256
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
+
+#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x00040000)
+#define CONFIG_ENV_IS_IN_FLASH 1
+#define CONFIG_ENV_SECT_SIZE (128 * 1024)
+#define CONFIG_ENV_SIZE (128 * 1024)
+
+/*
+ * CFI FLASH driver setup
+ */
+#define CONFIG_SYS_FLASH_CFI 1
+#define CONFIG_FLASH_CFI_DRIVER 1
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 /* ~10x faster */
+
+#define CONFIG_SYS_LOAD_ADDR 0x40000000 /* load address */
+
+#define CONFIG_SYS_MEMTEST_START (PHYS_SDRAM + (512*1024))
+#define CONFIG_SYS_MEMTEST_END (PHYS_SDRAM + PHYS_SDRAM_SIZE)
+
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE {115200, 19200, 38400, 57600, 9600 }
+
+#define CONFIG_SYS_PROMPT "jade> "
+#define CONFIG_SYS_CBSIZE 256
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
+ sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP 1
+#define CONFIG_CMDLINE_EDITING 1
+
+#define CONFIG_PREBOOT ""
+
+#define CONFIG_BOOTDELAY 5
+#define CONFIG_AUTOBOOT_KEYED
+#define CONFIG_AUTOBOOT_PROMPT "boot in %d s\n", bootdelay
+#define CONFIG_AUTOBOOT_DELAY_STR "delaygs"
+#define CONFIG_AUTOBOOT_STOP_STR "stopgs"
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN (0x400000 - 0x8000)
+#define CONFIG_SYS_GBL_DATA_SIZE 128 /* 128 bytes for initial data */
+
+#define CONFIG_STACKSIZE (32*1024) /* regular stack */
+
+/*
+ * Clock reset generator init
+ */
+#define CONFIG_SYS_CRG_CRHA_INIT 0xffff
+#define CONFIG_SYS_CRG_CRPA_INIT 0xffff
+#define CONFIG_SYS_CRG_CRPB_INIT 0xfffe
+#define CONFIG_SYS_CRG_CRHB_INIT 0xffff
+#define CONFIG_SYS_CRG_CRAM_INIT 0xffef
+
+/*
+ * Memory controller settings
+ */
+#define CONFIG_SYS_MEMC_MCFMODE0_INIT 0x00000001 /* 16bit */
+#define CONFIG_SYS_MEMC_MCFMODE2_INIT 0x00000001 /* 16bit */
+#define CONFIG_SYS_MEMC_MCFMODE4_INIT 0x00000021 /* 16bit, Page*/
+#define CONFIG_SYS_MEMC_MCFTIM0_INIT 0x16191008
+#define CONFIG_SYS_MEMC_MCFTIM2_INIT 0x03061008
+#define CONFIG_SYS_MEMC_MCFTIM4_INIT 0x03061804
+#define CONFIG_SYS_MEMC_MCFAREA0_INIT 0x000000c0 /* 0x0c000000 1MB */
+#define CONFIG_SYS_MEMC_MCFAREA2_INIT 0x00000020 /* 0x02000000 1MB */
+#define CONFIG_SYS_MEMC_MCFAREA4_INIT 0x001f0000 /* 0x10000000 32 MB */
+
+/*
+ * DDR2 controller init settings
+ */
+#define CONFIG_SYS_DDR2_DRIMS_INIT 0x5555
+#define CONFIG_SYS_CCNT_CDCRC_INIT_1 0x00000002
+#define CONFIG_SYS_CCNT_CDCRC_INIT_2 0x00000003
+#define CONFIG_SYS_DDR2_DRIC1_INIT 0x003f
+#define CONFIG_SYS_DDR2_DRIC2_INIT 0x0000
+#define CONFIG_SYS_DDR2_DRCA_INIT 0xc124 /* 512Mbit DDR2SDRAM x 2 */
+#define CONFIG_SYS_DDR2_DRCM_INIT 0x0032
+#define CONFIG_SYS_DDR2_DRCST1_INIT 0x3418
+#define CONFIG_SYS_DDR2_DRCST2_INIT 0x6e32
+#define CONFIG_SYS_DDR2_DRCR_INIT 0x0141
+#define CONFIG_SYS_DDR2_DRCF_INIT 0x0002
+#define CONFIG_SYS_DDR2_DRASR_INIT 0x0001
+#define CONFIG_SYS_DDR2_DROBS_INIT 0x0001
+#define CONFIG_SYS_DDR2_DROABA_INIT 0x0103
+#define CONFIG_SYS_DDR2_DRIBSODT1_INIT 0x003F
+#define CONFIG_SYS_DDR2_DROS_INIT 0x0001
+
+/*
+ * DRAM init sequence
+ */
+
+/* PALL Command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_1 0x0017
+#define CONFIG_SYS_DDR2_INIT_DRIC2_1 0x0400
+
+/* EMR(2) command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_2 0x0006
+#define CONFIG_SYS_DDR2_INIT_DRIC2_2 0x0000
+
+/* EMR(3) command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_3 0x0007
+#define CONFIG_SYS_DDR2_INIT_DRIC2_3 0x0000
+
+/* EMR(1) command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_4 0x0005
+#define CONFIG_SYS_DDR2_INIT_DRIC2_4 0x0000
+
+/* MRS command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_5 0x0004
+#define CONFIG_SYS_DDR2_INIT_DRIC2_5 0x0532
+
+/* PALL command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_6 0x0017
+#define CONFIG_SYS_DDR2_INIT_DRIC2_6 0x0400
+
+/* REF command 1 */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_7 0x000f
+#define CONFIG_SYS_DDR2_INIT_DRIC2_7 0x0000
+
+/* MRS command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_8 0x0004
+#define CONFIG_SYS_DDR2_INIT_DRIC2_8 0x0432
+
+/* EMR(1) command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_9 0x0005
+#define CONFIG_SYS_DDR2_INIT_DRIC2_9 0x0380
+
+/* EMR(1) command */
+#define CONFIG_SYS_DDR2_INIT_DRIC1_10 0x0005
+#define CONFIG_SYS_DDR2_INIT_DRIC2_10 0x0002
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif /* __CONFIG_H */
diff --git a/tools/Makefile b/tools/Makefile
index 749d994..b2e73b2 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -118,6 +118,9 @@ endif
ifeq ($(VENDOR),ronetix)
LOGO_BMP= logos/ronetix.bmp
endif
+ifeq ($(VENDOR),syteco)
+LOGO_BMP= logos/syteco.bmp
+endif
# now $(obj) is defined
HOSTSRCS += $(addprefix $(SRCTREE)/,$(EXT_OBJ_FILES-y:.o=.c))
diff --git a/tools/logos/syteco.bmp b/tools/logos/syteco.bmp
new file mode 100644
index 0000000000000000000000000000000000000000..9a994fe3e3812bdc2d63f7045d2740d931b2a42a
GIT binary patch
literal 11414
zcmeI0%Z=PH42HG#1PG8ua at cbU$T=w at oy;*6q at L+)mXs`;FTE_mvj`+$Vm-;vzbIOp
zpTGaTJ70d>ocj*7zwrA7zc=^Q_v1f*zJ*`xcs`%*@pwS<xpm#${eIu-^Dz~e3QPqq
zP~cWsoRbp=!%6e0_7xyYP4OUX;&?@v`BY<qNM)uXM3F5j;XIMfWw|<7cYm)1ac^7M
zc`7S$9X#t+$oJ&xgPAoJxGGi`HnkfBtwoA;ZR9u>;?jzeRD@&naCCtPjCEmR=eG!^
zQa#o$6?*72<zqx*tjm)3O-Cii`K?hHog62(Mq~7HoB}a0x;ak7h=tM3(H<iv#sH4S
zt-*xFPF-j;ofqc}3yq2ZhcZIby>Za#nZ-J!3uVH0wB!+kgJR%EA9Aq12N0O(PQ6eZ
z$UlR1&A~BJAO?q0Ht&BQ^&pBvVkAH;4hgb*DpU|ea%c>HA5&XnatM%u`(qfa3l0mz
z0>RTB%VAF#qXYSRB?sP6xgtpp8mxKWY_v`ft;lE&fTC{zc{EXkA}`|*TXPu)+dZQZ
zgA|@|G<1>F8VBm0_P&(XUdBNj6{-<geK6xd-7}#_!8sX@ZYD<%W$HnK1FD!>u)I1x
zeAfRI96^!S>k$<B3>>J)NRItNOh05iELAIfp)pd)w*{-%RbN;>-EZcML*E7Dy$EK2
z$8j8R?b=?CzP9E7ul#}*K<eLK&t!U_dGEEL2fqGb5W%s56gg}Vs-k}7Y>(s!AY~2{
zgq at kJTQ#USJV*tH0RpQ?tSVR84!UwXYWVjRRoIBr5JVzIL=MTiRfCLU2dUx^iU^FJ
z{1KDSt&W3%NQ^#?xSH;Z($MZ;!O at pbG0K9I29A9yiP6K5&8&OnTX<urac$YB3XG_%
zc4_xmAdMW7Ahd0F>0Se*g#-Qz+~i0*OpRzmO&p8Kk#d&nS0HU1i=ju(U3yG{baTYZ
zbK0dnB0zdMFzwrpO1&JUlOuePN-phj2GYk7Fh(fS#St;if{=@D566LV9^}}v+N=(L
v-!AOjQj8HG2a<6m=FVaZmJGf;QwXdp^U*bbS~I1ozV-x>`b|atPencepjJ52
literal 0
HcmV?d00001
--
1.7.0.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 1/3] arm: Add support for MB86R0x SoCs
2010-08-02 7:35 ` [U-Boot] [PATCH V5 1/3] arm: " Matthias Weisser
@ 2010-08-07 21:35 ` Wolfgang Denk
2010-08-09 6:55 ` Matthias Weißer
0 siblings, 1 reply; 7+ messages in thread
From: Wolfgang Denk @ 2010-08-07 21:35 UTC (permalink / raw)
To: u-boot
Dear Matthias Weisser,
In message <1280734550-18403-2-git-send-email-weisserm@arcor.de> you wrote:
> This patch adds support for MB86R0x SoCs from Fujitsu
>
> Signed-off-by: Matthias Weisser <weisserm@arcor.de>
...
> --- /dev/null
> +++ b/arch/arm/cpu/arm926ejs/mb86r0x/clock.c
...
> + if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X46)
> + return 41164767;
> + else if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X20)
> + return 40000000;
> +
> + return 41164767;
Or shorter:
if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X20)
return 40000000;
return 41164767;
> +unsigned long long get_ticks(void)
> +{
> + struct mb86r0x_timer * timer = (struct mb86r0x_timer *)
> + MB86R0x_TIMER_BASE;
> + ulong now = readl(&timer->value);
> +
> + if (now <= lastdec) /* normal mode (non roll) */
> + /* move stamp forward with absolut diff ticks */
> + timestamp += lastdec - now;
> + else /* we have rollover of incrementer */
We need curly braces for multiline statements like this.
> +void __udelay(unsigned long usec)
> +{
> + unsigned long long tmp;
> + ulong tmo;
> +
> + tmo = usec_to_tick(usec);
> + tmp = get_ticks() + tmo; /* get current timestamp */
> +
> + while (get_ticks() < tmp) /* loop till event */
> + /*NOP*/;
This is broken when the timer wraps around. Compare the limit against
the difference, to make use of unsigned arithmetics.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It seems intuitively obvious to me, which means that it might be
wrong. -- Chris Torek
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 1/3] arm: Add support for MB86R0x SoCs
2010-08-07 21:35 ` Wolfgang Denk
@ 2010-08-09 6:55 ` Matthias Weißer
2010-08-09 9:24 ` Wolfgang Denk
0 siblings, 1 reply; 7+ messages in thread
From: Matthias Weißer @ 2010-08-09 6:55 UTC (permalink / raw)
To: u-boot
Hello Wolfgang
Am 07.08.2010 23:35, schrieb Wolfgang Denk:
> Dear Matthias Weisser,
>
> In message<1280734550-18403-2-git-send-email-weisserm@arcor.de> you wrote:
>> +void __udelay(unsigned long usec)
>> +{
>> + unsigned long long tmp;
>> + ulong tmo;
>> +
>> + tmo = usec_to_tick(usec);
>> + tmp = get_ticks() + tmo; /* get current timestamp */
>> +
>> + while (get_ticks()< tmp) /* loop till event */
>> + /*NOP*/;
>
> This is broken when the timer wraps around. Compare the limit against
> the difference, to make use of unsigned arithmetics.
Isn't this a theoretical problem? The timer increments with approx.
160kHz. get_ticks() returns a 64 bit value which wraps all ~ 3*10^6
years. I don't expect my hardware to work that long without a reboot.
Can you point me to an example where the timer stuff is done right? I
see it done differently on nearly all ARM SOCs.
Thanks for the review
Matthias
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH V5 1/3] arm: Add support for MB86R0x SoCs
2010-08-09 6:55 ` Matthias Weißer
@ 2010-08-09 9:24 ` Wolfgang Denk
0 siblings, 0 replies; 7+ messages in thread
From: Wolfgang Denk @ 2010-08-09 9:24 UTC (permalink / raw)
To: u-boot
Dear =?ISO-8859-1?Q?Matthias_Wei=DFer?=,
In message <4C5FA669.6070303@arcor.de> you wrote:
>
> >> + tmo = usec_to_tick(usec);
> >> + tmp = get_ticks() + tmo; /* get current timestamp */
> >> +
> >> + while (get_ticks()< tmp) /* loop till event */
> >> + /*NOP*/;
> >
> > This is broken when the timer wraps around. Compare the limit against
> > the difference, to make use of unsigned arithmetics.
>
> Isn't this a theoretical problem? The timer increments with approx.
> 160kHz. get_ticks() returns a 64 bit value which wraps all ~ 3*10^6
> years. I don't expect my hardware to work that long without a reboot.
Such assumptions that problems might remain theoretical have cuased
enough real problems already. I mean, if it was difficult to write
correct code I might turn a blind eye, but why not fix it? It's a
trivial change...
> Can you point me to an example where the timer stuff is done right? I
> see it done differently on nearly all ARM SOCs.
Rule of a thumb: to copy from ARM means copying problems.
Use:
while ((get_ticks() - tmp) < tmo)
;
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Einstein argued that there must be simplified explanations of nature,
because God is not capricious or arbitrary. No such faith comforts
the software engineer. - Fred Brooks, Jr.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2010-08-09 9:24 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-08-02 7:35 [U-Boot] [PATCH V5 0/3] Add support for MB86R0x SoCs Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 1/3] arm: " Matthias Weisser
2010-08-07 21:35 ` Wolfgang Denk
2010-08-09 6:55 ` Matthias Weißer
2010-08-09 9:24 ` Wolfgang Denk
2010-08-02 7:35 ` [U-Boot] [PATCH V5 2/3] video: add support for display controller in " Matthias Weisser
2010-08-02 7:35 ` [U-Boot] [PATCH V5 3/3] arm: Add support for jadecpu board based on MB86R01 SoC Matthias Weisser
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