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// SPDX-License-Identifier: GPL-2.0-only
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/*
* Copyright ( C ) 2005 Nokia Corporation
* Author : Paul Mundt < paul . mundt @ nokia . com >
*
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* Copyright ( C ) 2011 Texas Instruments Incorporated - https : //www.ti.com/
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*
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* Modified from the original mach - omap / omap2 / board - generic . c did by Paul
* to support the OMAP2 + device tree boards with an unique board file .
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*/
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# include <linux/io.h>
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# include <linux/of_irq.h>
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# include <linux/of_platform.h>
# include <linux/irqdomain.h>
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# include <linux/clocksource.h>
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# include <asm/setup.h>
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# include <asm/mach/arch.h>
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# include <asm/system_info.h>
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# include "common.h"
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static const struct of_device_id omap_dt_match_table [ ] __initconst = {
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{ . compatible = " simple-bus " , } ,
{ . compatible = " ti,omap-infra " , } ,
{ }
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} ;
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static void __init __maybe_unused omap_generic_init ( void )
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{
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pdata_quirks_init ( omap_dt_match_table ) ;
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omap_soc_device_init ( ) ;
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}
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/* Clocks are needed early, see drivers/clocksource for the rest */
void __init __maybe_unused omap_init_time_of ( void )
{
omap_clk_init ( ) ;
timer_probe ( ) ;
}
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/* Used by am437x for ARM timer in non-SMP configurations */
# if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
void tick_broadcast ( const struct cpumask * mask )
{
}
# endif
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# ifdef CONFIG_SOC_OMAP2420
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static const char * const omap242x_boards_compat [ ] __initconst = {
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" ti,omap2420 " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP242X_DT , " Generic OMAP2420 (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = omap242x_map_io ,
. init_early = omap2420_init_early ,
. init_machine = omap_generic_init ,
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. init_time = omap_init_time_of ,
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. dt_compat = omap242x_boards_compat ,
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. restart = omap2xxx_restart ,
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MACHINE_END
# endif
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# ifdef CONFIG_SOC_OMAP2430
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static const char * const omap243x_boards_compat [ ] __initconst = {
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" ti,omap2430 " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP243X_DT , " Generic OMAP2430 (Flattened Device Tree) " )
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. reserve = omap_reserve ,
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. map_io = omap243x_map_io ,
. init_early = omap2430_init_early ,
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. init_machine = omap_generic_init ,
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. init_time = omap_init_time_of ,
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. dt_compat = omap243x_boards_compat ,
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. restart = omap2xxx_restart ,
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MACHINE_END
# endif
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# ifdef CONFIG_ARCH_OMAP3
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/* Some boards need board name for legacy userspace in /proc/cpuinfo */
static const char * const n900_boards_compat [ ] __initconst = {
" nokia,omap3-n900 " ,
NULL ,
} ;
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/* Set system_rev from atags */
static void __init rx51_set_system_rev ( const struct tag * tags )
{
const struct tag * tag ;
if ( tags - > hdr . tag ! = ATAG_CORE )
return ;
for_each_tag ( tag , tags ) {
if ( tag - > hdr . tag = = ATAG_REVISION ) {
system_rev = tag - > u . revision . rev ;
break ;
}
}
}
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/* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
* save them while the data is still not overwritten
*/
static void __init rx51_reserve ( void )
{
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const struct tag * tags = ( const struct tag * ) ( PAGE_OFFSET + 0x100 ) ;
save_atags ( tags ) ;
rx51_set_system_rev ( tags ) ;
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omap_reserve ( ) ;
}
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DT_MACHINE_START ( OMAP3_N900_DT , " Nokia RX-51 board " )
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. reserve = rx51_reserve ,
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. map_io = omap3_map_io ,
. init_early = omap3430_init_early ,
. init_machine = omap_generic_init ,
. init_late = omap3_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = n900_boards_compat ,
. restart = omap3xxx_restart ,
MACHINE_END
/* Generic omap3 boards, most boards can use these */
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static const char * const omap3_boards_compat [ ] __initconst = {
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" ti,omap3430 " ,
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" ti,omap3 " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP3_DT , " Generic OMAP3 (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = omap3_map_io ,
. init_early = omap3430_init_early ,
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. init_machine = omap_generic_init ,
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. init_late = omap3_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = omap3_boards_compat ,
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. restart = omap3xxx_restart ,
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MACHINE_END
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static const char * const omap36xx_boards_compat [ ] __initconst = {
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" ti,omap3630 " ,
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
SoC family definitions at the moment are reactive to board needs
as a result, beagle-xm would matchup with ti,omap3 which invokes
omap3430_init_early instead of omap3630_init_early. Obviously, this is
the wrong behavior.
With clock node dts conversion, we get the following warnings before
system hangs as a result and 3630 based platforms fails to boot
(uart4 clocks are only present in OMAP3630 and not present in
OMAP3430):
...
omap_hwmod: uart4: cannot clk_get main_clk uart4_fck
omap_hwmod: uart4: cannot _init_clocks
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2434
_init+0x6c/0x80()
omap_hwmod: uart4: couldn't init clocks
...
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2126
_enable+0x254/0x280()
omap_hwmod: timer12: enabled state can only be entered from
initialized, idle, or disabled state
...
WARNING: CPU: 0 PID: 46 at arch/arm/mach-omap2/omap_hwmod.c:2224
_idle+0xd4/0xf8()
omap_hwmod: timer12: idle state can only be entered from enabled state
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2126
_enable+0x254/0x280()
omap_hwmod: uart4: enabled state can only be entered from
initialized, idle, or disabled state
So, add specific compatiblity for 3630 to allow match for Beagle-XM
platform.
Signed-off-by: Nishanth Menon <nm@ti.com>
[tony@atomide.com: left out ti,omap343x, updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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" ti,omap36xx " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP36XX_DT , " Generic OMAP36xx (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = omap3_map_io ,
. init_early = omap3630_init_early ,
. init_machine = omap_generic_init ,
. init_late = omap3_init_late ,
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. init_time = omap_init_time_of ,
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
SoC family definitions at the moment are reactive to board needs
as a result, beagle-xm would matchup with ti,omap3 which invokes
omap3430_init_early instead of omap3630_init_early. Obviously, this is
the wrong behavior.
With clock node dts conversion, we get the following warnings before
system hangs as a result and 3630 based platforms fails to boot
(uart4 clocks are only present in OMAP3630 and not present in
OMAP3430):
...
omap_hwmod: uart4: cannot clk_get main_clk uart4_fck
omap_hwmod: uart4: cannot _init_clocks
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2434
_init+0x6c/0x80()
omap_hwmod: uart4: couldn't init clocks
...
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2126
_enable+0x254/0x280()
omap_hwmod: timer12: enabled state can only be entered from
initialized, idle, or disabled state
...
WARNING: CPU: 0 PID: 46 at arch/arm/mach-omap2/omap_hwmod.c:2224
_idle+0xd4/0xf8()
omap_hwmod: timer12: idle state can only be entered from enabled state
WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2126
_enable+0x254/0x280()
omap_hwmod: uart4: enabled state can only be entered from
initialized, idle, or disabled state
So, add specific compatiblity for 3630 to allow match for Beagle-XM
platform.
Signed-off-by: Nishanth Menon <nm@ti.com>
[tony@atomide.com: left out ti,omap343x, updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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. dt_compat = omap36xx_boards_compat ,
. restart = omap3xxx_restart ,
MACHINE_END
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static const char * const omap3_gp_boards_compat [ ] __initconst = {
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" ti,omap3-beagle " ,
ARM: dts: Add minimal DT support for DevKit8000
DevKit8000 is a beagle board clone from Timll, sold by
armkits.com. The DevKit8000 has RS232 serial port, LCD, DVI-D,
S-Video, Ethernet, SD/MMC, keyboard, camera, SPI, I2C, USB and
JTAG interface.
Add the basic DT support for devkit8000. It includes:
- twl4030 (PMIC)
- MMC1
- I2C1
- leds
Signed-off-by: Anil Kumar <anilk4.v@gmail.com>
Tested-by: Thomas Weber <thomas@tomweber.eu>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
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" timll,omap3-devkit8000 " ,
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NULL ,
} ;
DT_MACHINE_START ( OMAP3_GP_DT , " Generic OMAP3-GP (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = omap3_map_io ,
. init_early = omap3430_init_early ,
. init_machine = omap_generic_init ,
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. init_late = omap3_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = omap3_gp_boards_compat ,
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. restart = omap3xxx_restart ,
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MACHINE_END
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static const char * const am3517_boards_compat [ ] __initconst = {
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" ti,am3517 " ,
NULL ,
} ;
DT_MACHINE_START ( AM3517_DT , " Generic AM3517 (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = omap3_map_io ,
. init_early = am35xx_init_early ,
. init_machine = omap_generic_init ,
. init_late = omap3_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = am3517_boards_compat ,
. restart = omap3xxx_restart ,
MACHINE_END
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# endif
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# ifdef CONFIG_SOC_TI81XX
static const char * const ti814x_boards_compat [ ] __initconst = {
" ti,dm8148 " ,
" ti,dm814 " ,
NULL ,
} ;
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DT_MACHINE_START ( TI814X_DT , " Generic ti814x (Flattened Device Tree) " )
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. reserve = omap_reserve ,
. map_io = ti81xx_map_io ,
. init_early = ti814x_init_early ,
. init_machine = omap_generic_init ,
. init_late = ti81xx_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = ti814x_boards_compat ,
. restart = ti81xx_restart ,
MACHINE_END
static const char * const ti816x_boards_compat [ ] __initconst = {
" ti,dm8168 " ,
" ti,dm816 " ,
NULL ,
} ;
DT_MACHINE_START ( TI816X_DT , " Generic ti816x (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = ti81xx_map_io ,
. init_early = ti816x_init_early ,
. init_machine = omap_generic_init ,
. init_late = ti81xx_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = ti816x_boards_compat ,
. restart = ti81xx_restart ,
MACHINE_END
# endif
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# ifdef CONFIG_SOC_AM33XX
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static const char * const am33xx_boards_compat [ ] __initconst = {
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" ti,am33xx " ,
NULL ,
} ;
DT_MACHINE_START ( AM33XX_DT , " Generic AM33XX (Flattened Device Tree) " )
. reserve = omap_reserve ,
. map_io = am33xx_map_io ,
. init_early = am33xx_init_early ,
. init_machine = omap_generic_init ,
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. init_late = am33xx_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = am33xx_boards_compat ,
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. restart = am33xx_restart ,
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MACHINE_END
# endif
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# ifdef CONFIG_ARCH_OMAP4
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static const char * const omap4_boards_compat [ ] __initconst = {
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" ti,omap4460 " ,
" ti,omap4430 " ,
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" ti,omap4 " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP4_DT , " Generic OMAP4 (Flattened Device Tree) " )
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. l2c_aux_val = OMAP_L2C_AUX_CTRL ,
. l2c_aux_mask = 0xcf9fffff ,
. l2c_write_sec = omap4_l2c310_write_sec ,
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. reserve = omap_reserve ,
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. smp = smp_ops ( omap4_smp_ops ) ,
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. map_io = omap4_map_io ,
. init_early = omap4430_init_early ,
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. init_irq = omap_gic_of_init ,
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. init_machine = omap_generic_init ,
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. init_late = omap4430_init_late ,
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. init_time = omap_init_time_of ,
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. dt_compat = omap4_boards_compat ,
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. restart = omap44xx_restart ,
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MACHINE_END
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# endif
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# ifdef CONFIG_SOC_OMAP5
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static const char * const omap5_boards_compat [ ] __initconst = {
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" ti,omap5432 " ,
" ti,omap5430 " ,
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" ti,omap5 " ,
NULL ,
} ;
DT_MACHINE_START ( OMAP5_DT , " Generic OMAP5 (Flattened Device Tree) " )
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# if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
. dma_zone_size = SZ_2G ,
# endif
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. reserve = omap_reserve ,
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. smp = smp_ops ( omap4_smp_ops ) ,
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. map_io = omap5_map_io ,
. init_early = omap5_init_early ,
. init_irq = omap_gic_of_init ,
. init_machine = omap_generic_init ,
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. init_late = omap5_init_late ,
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. init_time = omap5_realtime_timer_init ,
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. dt_compat = omap5_boards_compat ,
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. restart = omap44xx_restart ,
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MACHINE_END
# endif
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# ifdef CONFIG_SOC_AM43XX
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static const char * const am43_boards_compat [ ] __initconst = {
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" ti,am4372 " ,
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" ti,am43 " ,
NULL ,
} ;
DT_MACHINE_START ( AM43_DT , " Generic AM43 (Flattened Device Tree) " )
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. l2c_aux_val = OMAP_L2C_AUX_CTRL ,
. l2c_aux_mask = 0xcf9fffff ,
. l2c_write_sec = omap4_l2c310_write_sec ,
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. map_io = am33xx_map_io ,
. init_early = am43xx_init_early ,
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. init_late = am43xx_init_late ,
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. init_irq = omap_gic_of_init ,
. init_machine = omap_generic_init ,
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. init_time = omap_init_time_of ,
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. dt_compat = am43_boards_compat ,
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. restart = omap44xx_restart ,
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MACHINE_END
# endif
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# ifdef CONFIG_SOC_DRA7XX
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static const char * const dra74x_boards_compat [ ] __initconst = {
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" ti,dra762 " ,
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" ti,am5728 " ,
" ti,am5726 " ,
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" ti,dra742 " ,
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" ti,dra7 " ,
NULL ,
} ;
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DT_MACHINE_START ( DRA74X_DT , " Generic DRA74X (Flattened Device Tree) " )
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# if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
. dma_zone_size = SZ_2G ,
# endif
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. reserve = omap_reserve ,
. smp = smp_ops ( omap4_smp_ops ) ,
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. map_io = dra7xx_map_io ,
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. init_early = dra7xx_init_early ,
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. init_late = dra7xx_init_late ,
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. init_irq = omap_gic_of_init ,
. init_machine = omap_generic_init ,
. init_time = omap5_realtime_timer_init ,
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. dt_compat = dra74x_boards_compat ,
. restart = omap44xx_restart ,
MACHINE_END
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static const char * const dra72x_boards_compat [ ] __initconst = {
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" ti,am5718 " ,
" ti,am5716 " ,
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" ti,dra722 " ,
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" ti,dra718 " ,
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NULL ,
} ;
DT_MACHINE_START ( DRA72X_DT , " Generic DRA72X (Flattened Device Tree) " )
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# if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
. dma_zone_size = SZ_2G ,
# endif
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. reserve = omap_reserve ,
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. map_io = dra7xx_map_io ,
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. init_early = dra7xx_init_early ,
. init_late = dra7xx_init_late ,
. init_irq = omap_gic_of_init ,
. init_machine = omap_generic_init ,
. init_time = omap5_realtime_timer_init ,
. dt_compat = dra72x_boards_compat ,
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. restart = omap44xx_restart ,
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MACHINE_END
# endif