Fwd: [RFC/PATCH v2 11/13] dt: omap4: add generic board file for dt support
G, Manjunath Kondaiah
manjugk at ti.com
Wed Aug 24 01:30:41 EST 2011
On Tue, Aug 23, 2011 at 03:05:01PM +0200, Cousson, Benoit wrote:
> From: G, Manjunath Kondaiah<manjugk at ti.com>
> >The generic board file is created and derived from omap4 panda board file.
> >
> >The changes here focus on minimal configuration to boot panda board with
> >dt enabled which provides basic platform for converting device drivers for
> >using dt.
> >
> >Signed-off-by: G, Manjunath Kondaiah<manjugk at ti.com>
> >---
> > arch/arm/boot/dts/omap4-panda.dts | 2 +-
> > arch/arm/mach-omap2/Kconfig | 11 +++++
> > arch/arm/mach-omap2/Makefile | 1 +
> > arch/arm/mach-omap2/board-omap4-dt.c | 66
> >++++++++++++++++++++++++++++++++
> > arch/arm/mach-omap2/board-omap4panda.c | 6 ---
> > 5 files changed, 79 insertions(+), 7 deletions(-)
> > create mode 100644 arch/arm/mach-omap2/board-omap4-dt.c
> >
> >diff --git a/arch/arm/boot/dts/omap4-panda.dts
> >b/arch/arm/boot/dts/omap4-panda.dts
> >index 6b831ca..9d1b17c 100644
> >--- a/arch/arm/boot/dts/omap4-panda.dts
> >+++ b/arch/arm/boot/dts/omap4-panda.dts
> >@@ -2,7 +2,7 @@
> >
> > / {
> > model = "TI OMAP4 PandaBoard";
> >- compatible = "ti,omap4-panda", "ti,omap4430";
> >+ compatible = "ti,omap4-panda", "ti,omap4";
>
> That change does not belong here, or at least should be listed in
> the changelog. Potentially you should keep the ti,omap4430 and just
> add the ti,omap4 to have the most generic compatible value.
ok.
>
> >
> > i2c1 {
> > clock-frequency =<400000>;
> >diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> >index 4fbb54d..853b14c 100644
> >--- a/arch/arm/mach-omap2/Kconfig
> >+++ b/arch/arm/mach-omap2/Kconfig
> >@@ -337,6 +337,17 @@ config MACH_OMAP4_PANDA
> > select OMAP_PACKAGE_CBS
> > select REGULATOR_FIXED_VOLTAGE
> >
> >+config MACH_OMAP4_DT
> >+ bool "Generic OMAP4 board(FDT support)"
> >+ depends on ARCH_OMAP4
> >+ select OMAP_PACKAGE_CBB
>
> Wrong package... it looks like some OMAP3 copy/paste.
>
> >+ select USE_OF
> >+
> >+ help
> >+ Support for generic TI OMAP4 boards using Flattened Device Tree.
> >+ Say Y here to enable OMAP3 device tree support
>
> Some more copy/paste evidence:-)
Sorry for this typo. Will fix it.
>
> >+ More information at Documentation/devicetree
> >+
> > config OMAP3_EMU
> > bool "OMAP3 debugging peripherals"
> > depends on ARCH_OMAP3
> >diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
> >index e702e47..8b8c29c 100644
> >--- a/arch/arm/mach-omap2/Makefile
> >+++ b/arch/arm/mach-omap2/Makefile
> >@@ -198,6 +198,7 @@ obj-$(CONFIG_MACH_OMAP3EVM) += board-omap3evm.o
> > obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o
> > obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o
> > obj-$(CONFIG_MACH_OMAP3_DT) += board-omap3-dt.o
> >+obj-$(CONFIG_MACH_OMAP4_DT) += board-omap4-dt.o
>
> Boards are grouped by SoC version.
one board file/soc family like board-omap4-dt for omap4xxxx
can you please be more specific what changes you are expecting?
>
> > obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0.o
> > obj-$(CONFIG_MACH_NOKIA_RM680) += board-rm680.o \
> > sdram-nokia.o
> >diff --git a/arch/arm/mach-omap2/board-omap4-dt.c
> >b/arch/arm/mach-omap2/board-omap4-dt.c
> >new file mode 100644
> >index 0000000..a4d296c
> >--- /dev/null
> >+++ b/arch/arm/mach-omap2/board-omap4-dt.c
> >@@ -0,0 +1,66 @@
> >+/*
> >+ * TI OMAP3 device tree board support
>
> One more C&P.
>
> >+ *
> >+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
> >+ *
> >+ * This program is free software; you can redistribute it and/or modify
> >+ * it under the terms of the GNU General Public License version 2 as
> >+ * published by the Free Software Foundation.
> >+ */
> >+
> >+#include<linux/kernel.h>
> >+#include<linux/init.h>
> >+#include<linux/i2c/twl.h>
> >+
> >+#include<mach/omap4-common.h>
>
> nitpicking, but it should go after <plat/common.h>.
ok
>
> >+#include<asm/mach/arch.h>
> >+#include<asm/mach/map.h>
> >+
> >+#include<plat/common.h>
> >+
> >+#include "common-board-devices.h"
> >+
> >+static void __init omap4_init_early(void)
> >+{
> >+ omap2_init_common_infrastructure();
> >+ omap2_init_common_devices(NULL, NULL);
> >+}
> >+
> >+static struct twl4030_platform_data omap4_twldata = {
> >+ .irq_base = TWL6030_IRQ_BASE,
> >+ .irq_end = TWL6030_IRQ_END,
> >+};
> >+
> >+static int __init omap4_i2c_init(void)
> >+{
> >+ omap4_pmic_init("twl6030",&omap4_twldata);
> >+ return 0;
> >+}
> >+
> >+static void __init omap4_init(void)
> >+{
> >+ omap4_i2c_init();
> >+ omap_serial_init();
> >+}
> >+
> >+static void __init omap4_map_io(void)
> >+{
> >+ omap2_set_globals_443x();
> >+ omap44xx_map_common_io();
> >+}
> >+
> >+static const char *omap4_match[] __initdata = {
> >+ "ti,omap4",
> >+ NULL,
> >+};
> >+
> >+DT_MACHINE_START(OMAP4_DT, "TI OMAP4 (Flattened Device Tree)")
> >+ .boot_params = 0x80000100,
>
> Not needed anymore with DT.
yes
>
> >+ .reserve = omap_reserve,
> >+ .map_io = omap4_map_io,
> >+ .init_early = omap4_init_early,
> >+ .init_irq = gic_init_irq,
> >+ .init_machine = omap4_init,
> >+ .timer =&omap4_timer,
> >+ .dt_compat = omap4_match,
> >+MACHINE_END
> >diff --git a/arch/arm/mach-omap2/board-omap4panda.c
> >b/arch/arm/mach-omap2/board-omap4panda.c
> >index 1c583c7..9aaa960 100644
> >--- a/arch/arm/mach-omap2/board-omap4panda.c
> >+++ b/arch/arm/mach-omap2/board-omap4panda.c
>
> That change does not really belong here or the changelog is not correct.
> You can potentially do it in an other patch before. It will not
> really introduce any regression if you do it before adding any
> information into panda DT.
ok.
-M
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