From b7b8410a8fee9eda7b062a86a07dda0b97c49f8a Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 17 Nov 2016 01:02:57 +0100 Subject: ls2080: Exit dpaa only right before exiting U-Boot On ls2080 we have a separate network fabric component which we need to shut down before we enter Linux (or any other OS). Along with that also comes configuration of the fabric using a description file. Today we always stop and configure the fabric in the boot script and (again) exit it on device tree generation. This works ok for the normal booti case, but with bootefi the payload we're running may still want to access the network. So let's add a new fsl_mc command that defers configuration and stopping the hardware to when we actually exit U-Boot, so that we can still use the fabric from an EFI payload. For existing boot scripts, nothing should change with this patch. Signed-off-by: Alexander Graf Reviewed-by: York Sun [agraf: Fix x86 build] --- arch/arm/include/asm/u-boot-arm.h | 1 + arch/arm/lib/bootm.c | 7 +++++++ 2 files changed, 8 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/u-boot-arm.h b/arch/arm/include/asm/u-boot-arm.h index 414042d4039..305a302dfc4 100644 --- a/arch/arm/include/asm/u-boot-arm.h +++ b/arch/arm/include/asm/u-boot-arm.h @@ -37,6 +37,7 @@ int arch_early_init_r(void); /* board/.../... */ int board_init(void); void dram_init_banksize (void); +void board_quiesce_devices(void); /* cpu/.../interrupt.c */ int arch_interrupt_init (void); diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 53c3141322a..dedcd1e9a4b 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -64,6 +64,10 @@ void arch_lmb_reserve(struct lmb *lmb) gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp); } +__weak void board_quiesce_devices(void) +{ +} + /** * announce_and_cleanup() - Print message and prepare for kernel boot * @@ -84,6 +88,9 @@ static void announce_and_cleanup(int fake) #ifdef CONFIG_USB_DEVICE udc_disconnect(); #endif + + board_quiesce_devices(); + cleanup_before_linux(); } -- cgit v1.2.3