forked from Minki/linux
1f202dea74
This reverts commit ce16feb851.
This commit stopped tying down the name of the MMC/SD devices, but these
names are used in the pin control table, so the MMC/SD cards stopped
working.
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
230 lines
7.2 KiB
C
230 lines
7.2 KiB
C
/*
|
|
* Copyright (C) 2008-2009 ST-Ericsson SA
|
|
*
|
|
* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.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/types.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/amba/bus.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/mfd/abx500/ab8500.h>
|
|
#include <linux/mfd/dbx500-prcmu.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/platform_data/pinctrl-nomadik.h>
|
|
#include <linux/random.h>
|
|
|
|
#include <asm/pmu.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include "setup.h"
|
|
#include "devices.h"
|
|
#include "irqs.h"
|
|
|
|
#include "devices-db8500.h"
|
|
#include "db8500-regs.h"
|
|
#include "board-mop500.h"
|
|
#include "id.h"
|
|
|
|
/* minimum static i/o mapping required to boot U8500 platforms */
|
|
static struct map_desc u8500_uart_io_desc[] __initdata = {
|
|
__IO_DEV_DESC(U8500_UART0_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_UART2_BASE, SZ_4K),
|
|
};
|
|
/* U8500 and U9540 common io_desc */
|
|
static struct map_desc u8500_common_io_desc[] __initdata = {
|
|
/* SCU base also covers GIC CPU BASE and TWD with its 4K page */
|
|
__IO_DEV_DESC(U8500_SCU_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_L2CC_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K),
|
|
|
|
__IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K),
|
|
|
|
__IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
|
|
};
|
|
|
|
/* U8500 IO map specific description */
|
|
static struct map_desc u8500_io_desc[] __initdata = {
|
|
__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
|
|
__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K),
|
|
|
|
};
|
|
|
|
/* U9540 IO map specific description */
|
|
static struct map_desc u9540_io_desc[] __initdata = {
|
|
__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K + SZ_8K),
|
|
__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K + SZ_8K),
|
|
};
|
|
|
|
void __init u8500_map_io(void)
|
|
{
|
|
/*
|
|
* Map the UARTs early so that the DEBUG_LL stuff continues to work.
|
|
*/
|
|
iotable_init(u8500_uart_io_desc, ARRAY_SIZE(u8500_uart_io_desc));
|
|
|
|
ux500_map_io();
|
|
|
|
iotable_init(u8500_common_io_desc, ARRAY_SIZE(u8500_common_io_desc));
|
|
|
|
if (cpu_is_ux540_family())
|
|
iotable_init(u9540_io_desc, ARRAY_SIZE(u9540_io_desc));
|
|
else
|
|
iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
|
|
}
|
|
|
|
/*
|
|
* The PMU IRQ lines of two cores are wired together into a single interrupt.
|
|
* Bounce the interrupt to the other core if it's not ours.
|
|
*/
|
|
static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
|
|
{
|
|
irqreturn_t ret = handler(irq, dev);
|
|
int other = !smp_processor_id();
|
|
|
|
if (ret == IRQ_NONE && cpu_online(other))
|
|
irq_set_affinity(irq, cpumask_of(other));
|
|
|
|
/*
|
|
* We should be able to get away with the amount of IRQ_NONEs we give,
|
|
* while still having the spurious IRQ detection code kick in if the
|
|
* interrupt really starts hitting spuriously.
|
|
*/
|
|
return ret;
|
|
}
|
|
|
|
struct arm_pmu_platdata db8500_pmu_platdata = {
|
|
.handle_irq = db8500_pmu_handler,
|
|
};
|
|
|
|
static const char *db8500_read_soc_id(void)
|
|
{
|
|
void __iomem *uid = __io_address(U8500_BB_UID_BASE);
|
|
|
|
/* Throw these device-specific numbers into the entropy pool */
|
|
add_device_randomness(uid, 0x14);
|
|
return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
|
|
readl((u32 *)uid+0),
|
|
readl((u32 *)uid+1), readl((u32 *)uid+2),
|
|
readl((u32 *)uid+3), readl((u32 *)uid+4));
|
|
}
|
|
|
|
static struct device * __init db8500_soc_device_init(void)
|
|
{
|
|
const char *soc_id = db8500_read_soc_id();
|
|
|
|
return ux500_soc_device_init(soc_id);
|
|
}
|
|
|
|
#ifdef CONFIG_MACH_UX500_DT
|
|
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 bindings. */
|
|
OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", NULL),
|
|
OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", NULL),
|
|
OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", NULL),
|
|
OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", NULL),
|
|
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),
|
|
/* Requires non-DT:able platform data. */
|
|
OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
|
|
&db8500_prcmu_pdata),
|
|
OF_DEV_AUXDATA("stericsson,ux500-cryp", 0xa03cb000, "cryp1", NULL),
|
|
OF_DEV_AUXDATA("stericsson,ux500-hash", 0xa03c2000, "hash1", NULL),
|
|
OF_DEV_AUXDATA("stericsson,snd-soc-mop500", 0, "snd-soc-mop500.0",
|
|
NULL),
|
|
/* Requires device name bindings. */
|
|
OF_DEV_AUXDATA("stericsson,db8500-pinctrl", U8500_PRCMU_BASE,
|
|
"pinctrl-db8500", NULL),
|
|
{},
|
|
};
|
|
|
|
static struct of_dev_auxdata u8540_auxdata_lookup[] __initdata = {
|
|
/* Requires DMA bindings. */
|
|
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", NULL),
|
|
OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", NULL),
|
|
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", NULL),
|
|
OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
|
|
&db8500_prcmu_pdata),
|
|
{},
|
|
};
|
|
|
|
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 = db8500_soc_device_init();
|
|
|
|
/* 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();
|
|
else if (of_machine_is_compatible("st-ericsson,ccu9540")) {}
|
|
/* TODO: Add pinmaps for ccu9540 board. */
|
|
|
|
/* automatically probe child nodes of dbx5x0 devices */
|
|
if (of_machine_is_compatible("st-ericsson,u8540"))
|
|
of_platform_populate(NULL, u8500_local_bus_nodes,
|
|
u8540_auxdata_lookup, parent);
|
|
else
|
|
of_platform_populate(NULL, u8500_local_bus_nodes,
|
|
u8500_auxdata_lookup, parent);
|
|
}
|
|
|
|
static const char * stericsson_dt_platform_compat[] = {
|
|
"st-ericsson,u8500",
|
|
"st-ericsson,u8540",
|
|
"st-ericsson,u9500",
|
|
"st-ericsson,u9540",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(U8500_DT, "ST-Ericsson Ux5x0 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 */
|
|
.init_time = ux500_timer_init,
|
|
.init_machine = u8500_init_machine,
|
|
.init_late = NULL,
|
|
.dt_compat = stericsson_dt_platform_compat,
|
|
.restart = ux500_restart,
|
|
MACHINE_END
|
|
|
|
#endif
|