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ARM: ux500: Move all Device Tree booting into cpu-db8500
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To aid the kernel in its effort to move to DT only booting, we're
transplanting all Device Tree related code to cpu-db8500 which will
remain persistent throughout the transition. This change paths the
way for complete removal of board-mop500, which will be done once
the all DMA settings are moved into the respective DT source files.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Lee Jones committed Nov 1, 2012
1 parent d6b22eb commit fa86a76
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Showing 3 changed files with 111 additions and 110 deletions.
106 changes: 4 additions & 102 deletions arch/arm/mach-ux500/board-mop500.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,6 @@
#include <linux/smsc911x.h>
#include <linux/gpio_keys.h>
#include <linux/delay.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/leds.h>
#include <linux/pinctrl/consumer.h>

Expand Down Expand Up @@ -464,7 +462,7 @@ static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
};
#endif

static struct pl022_ssp_controller ssp0_plat = {
struct pl022_ssp_controller ssp0_plat = {
.bus_id = 0,
#ifdef CONFIG_STE_DMA40
.enable_dma = 1,
Expand Down Expand Up @@ -541,23 +539,23 @@ static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
};
#endif

static struct amba_pl011_data uart0_plat = {
struct amba_pl011_data uart0_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart0_dma_cfg_rx,
.dma_tx_param = &uart0_dma_cfg_tx,
#endif
};

static struct amba_pl011_data uart1_plat = {
struct amba_pl011_data uart1_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart1_dma_cfg_rx,
.dma_tx_param = &uart1_dma_cfg_tx,
#endif
};

static struct amba_pl011_data uart2_plat = {
struct amba_pl011_data uart2_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart2_dma_cfg_rx,
Expand Down Expand Up @@ -719,99 +717,3 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
.init_machine = snowball_init_machine,
.init_late = NULL,
MACHINE_END

#ifdef CONFIG_MACH_UX500_DT

struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires call-back bindings. */
OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
/* Requires DMA and call-back bindings. */
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", &uart1_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", &uart2_plat),
/* Requires DMA bindings. */
OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0", &ssp0_plat),
OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", &mop500_sdi1_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", &mop500_sdi2_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data),
/* Requires clock name bindings. */
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e000, "gpio.0", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e080, "gpio.1", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e000, "gpio.2", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e080, "gpio.3", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e100, "gpio.4", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e180, "gpio.5", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80004000, "nmk-i2c.0", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80122000, "nmk-i2c.1", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80128000, "nmk-i2c.2", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80110000, "nmk-i2c.3", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
/* Requires clock name and DMA bindings. */
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
"ux500-msp-i2s.0", &msp0_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
"ux500-msp-i2s.1", &msp1_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000,
"ux500-msp-i2s.2", &msp2_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
"ux500-msp-i2s.3", &msp3_platform_data),
{},
};

static const struct of_device_id u8500_local_bus_nodes[] = {
/* only create devices below soc node */
{ .compatible = "stericsson,db8500", },
{ .compatible = "stericsson,db8500-prcmu", },
{ .compatible = "simple-bus"},
{ },
};

static void __init u8500_init_machine(void)
{
struct device *parent = NULL;

/* Pinmaps must be in place before devices register */
if (of_machine_is_compatible("st-ericsson,mop500"))
mop500_pinmaps_init();
else if (of_machine_is_compatible("calaosystems,snowball-a9500"))
snowball_pinmaps_init();
else if (of_machine_is_compatible("st-ericsson,hrefv60+"))
hrefv60_pinmaps_init();

/* TODO: Export SoC, USB, cpu-freq and DMA40 */
parent = u8500_of_init_devices();

/* automatically probe child nodes of db8500 device */
of_platform_populate(NULL, u8500_local_bus_nodes, u8500_auxdata_lookup, parent);

/* This board has full regulator constraints */
regulator_has_full_constraints();
}

static const char * u8500_dt_board_compat[] = {
"calaosystems,snowball-a9500",
"st-ericsson,hrefv60+",
"st-ericsson,u8500",
"st-ericsson,mop500",
NULL,
};


DT_MACHINE_START(U8500_DT, "ST-Ericsson U8500 platform (Device Tree Support)")
.smp = smp_ops(ux500_smp_ops),
.map_io = u8500_map_io,
.init_irq = ux500_init_irq,
/* we re-use nomadik timer here */
.timer = &ux500_timer,
.handle_irq = gic_handle_irq,
.init_machine = u8500_init_machine,
.init_late = ux500_init_late,
.dt_compat = u8500_dt_board_compat,
MACHINE_END
#endif
8 changes: 4 additions & 4 deletions arch/arm/mach-ux500/board-mop500.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,10 @@ extern struct msp_i2s_platform_data msp1_platform_data;
extern struct msp_i2s_platform_data msp2_platform_data;
extern struct msp_i2s_platform_data msp3_platform_data;
extern struct arm_pmu_platdata db8500_pmu_platdata;
extern struct amba_pl011_data uart0_plat;
extern struct amba_pl011_data uart1_plat;
extern struct amba_pl011_data uart2_plat;
extern struct pl022_ssp_controller ssp0_plat;

extern void mop500_sdi_init(struct device *parent);
extern void snowball_sdi_init(struct device *parent);
Expand All @@ -106,8 +110,4 @@ void mop500_of_audio_init(struct device *parent);
int __init mop500_uib_init(void);
void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
unsigned n);

/* TODO: Once all pieces are DT:ed, remove completely. */
struct device * __init u8500_of_init_devices(void);

#endif
107 changes: 103 additions & 4 deletions arch/arm/mach-ux500/cpu-db8500.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -17,9 +17,14 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/regulator/machine.h>

#include <asm/pmu.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/hardware/gic.h>
#include <plat/gpio-nomadik.h>
#include <mach/hardware.h>
#include <mach/setup.h>
Expand All @@ -29,6 +34,7 @@

#include "devices-db8500.h"
#include "ste-dma40-db8500.h"
#include "board-mop500.h"

/* minimum static i/o mapping required to boot U8500 platforms */
static struct map_desc u8500_uart_io_desc[] __initdata = {
Expand Down Expand Up @@ -227,12 +233,12 @@ struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500)
return parent;
}

#ifdef CONFIG_MACH_UX500_DT

/* TODO: Once all pieces are DT:ed, remove completely. */
struct device * __init u8500_of_init_devices(void)
static struct device * __init u8500_of_init_devices(void)
{
struct device *parent;

parent = db8500_soc_device_init();
struct device *parent = db8500_soc_device_init();

db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);

Expand All @@ -251,3 +257,96 @@ struct device * __init u8500_of_init_devices(void)

return parent;
}

static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires call-back bindings. */
OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
/* Requires DMA and call-back bindings. */
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", &uart1_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", &uart2_plat),
/* Requires DMA bindings. */
OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0", &ssp0_plat),
OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", &mop500_sdi1_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", &mop500_sdi2_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data),
/* Requires clock name bindings. */
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e000, "gpio.0", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e080, "gpio.1", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e000, "gpio.2", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e080, "gpio.3", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e100, "gpio.4", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e180, "gpio.5", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80004000, "nmk-i2c.0", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80122000, "nmk-i2c.1", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80128000, "nmk-i2c.2", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80110000, "nmk-i2c.3", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
/* Requires clock name and DMA bindings. */
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
"ux500-msp-i2s.0", &msp0_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
"ux500-msp-i2s.1", &msp1_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000,
"ux500-msp-i2s.2", &msp2_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
"ux500-msp-i2s.3", &msp3_platform_data),
{},
};

static const struct of_device_id u8500_local_bus_nodes[] = {
/* only create devices below soc node */
{ .compatible = "stericsson,db8500", },
{ .compatible = "stericsson,db8500-prcmu", },
{ .compatible = "simple-bus"},
{ },
};

static void __init u8500_init_machine(void)
{
struct device *parent = NULL;

/* Pinmaps must be in place before devices register */
if (of_machine_is_compatible("st-ericsson,mop500"))
mop500_pinmaps_init();
else if (of_machine_is_compatible("calaosystems,snowball-a9500"))
snowball_pinmaps_init();
else if (of_machine_is_compatible("st-ericsson,hrefv60+"))
hrefv60_pinmaps_init();

/* TODO: Export SoC, USB, cpu-freq and DMA40 */
parent = u8500_of_init_devices();

/* automatically probe child nodes of db8500 device */
of_platform_populate(NULL, u8500_local_bus_nodes, u8500_auxdata_lookup, parent);

/* This board has full regulator constraints */
regulator_has_full_constraints();
}

static const char * u8500_dt_board_compat[] = {
"calaosystems,snowball-a9500",
"st-ericsson,hrefv60+",
"st-ericsson,u8500",
"st-ericsson,mop500",
NULL,
};

DT_MACHINE_START(U8500_DT, "ST-Ericsson U8500 platform (Device Tree Support)")
.map_io = u8500_map_io,
.init_irq = ux500_init_irq,
/* we re-use nomadik timer here */
.timer = &ux500_timer,
.handle_irq = gic_handle_irq,
.init_machine = u8500_init_machine,
.init_late = ux500_init_late,
.dt_compat = u8500_dt_board_compat,
MACHINE_END

#endif

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