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MIPS: BCM47XX: Initialize bcma bus later (with mm available) 

Initializaion with memory allocator available will be much simpler, this
will allow cleanup in the bcma code.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8234/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
hifive-unleashed-5.1
Rafał Miłecki 2014-10-28 14:40:38 +01:00 committed by Ralf Baechle
parent a59da8fb3b
commit e5810fa0c1
3 changed files with 38 additions and 6 deletions
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3
arch/mips/bcm47xx/bcm47xx_private.h
View File

@ -15,6 +15,9 @@ int __init bcm47xx_buttons_register(void);
/* leds.c */
void __init bcm47xx_leds_register(void);
/* setup.c */
void __init bcm47xx_bus_setup(void);
/* workarounds.c */
void __init bcm47xx_workarounds(void);

8
arch/mips/bcm47xx/irq.c
View File

@ -22,6 +22,8 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "bcm47xx_private.h"
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@ -65,6 +67,12 @@ DEFINE_HWx_IRQDISPATCH(7)
void __init arch_init_irq(void)
{
/*
* This is the first arch callback after mm_init (we can use kmalloc),
* so let's finish bus initialization now.
*/
bcm47xx_bus_setup();
#ifdef CONFIG_BCM47XX_BCMA
if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) {
bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core,

33
arch/mips/bcm47xx/setup.c
View File

@ -156,15 +156,14 @@ static void __init bcm47xx_register_bcma(void)
err = bcma_host_soc_register(&bcm47xx_bus.bcma);
if (err)
panic("Failed to register BCMA bus (err %d)", err);
err = bcma_host_soc_init(&bcm47xx_bus.bcma);
if (err)
panic("Failed to initialize BCMA bus (err %d)", err);
bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
}
#endif
/*
* Memory setup is done in the early part of MIPS's arch_mem_init. It's supposed
* to detect memory and record it with add_memory_region.
* Any extra initializaion performed here must not use kmalloc or bootmem.
*/
void __init plat_mem_setup(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
@ -193,6 +192,28 @@ void __init plat_mem_setup(void)
_machine_restart = bcm47xx_machine_restart;
_machine_halt = bcm47xx_machine_halt;
pm_power_off = bcm47xx_machine_halt;
}
/*
* This finishes bus initialization doing things that were not possible without
* kmalloc. Make sure to call it late enough (after mm_init).
*/
void __init bcm47xx_bus_setup(void)
{
#ifdef CONFIG_BCM47XX_BCMA
if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) {
int err;
err = bcma_host_soc_init(&bcm47xx_bus.bcma);
if (err)
panic("Failed to initialize BCMA bus (err %d)", err);
bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo,
NULL);
}
#endif
/* With bus initialized we can access NVRAM and detect the board */
bcm47xx_board_detect();
mips_set_machine_name(bcm47xx_board_get_name());
}