diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.18/034-MIPS-BCM47XX-Initialize-bcma-bus-later-with-mm-avail.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.18/034-MIPS-BCM47XX-Initialize-bcma-bus-later-with-mm-avail.patch | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.18/034-MIPS-BCM47XX-Initialize-bcma-bus-later-with-mm-avail.patch b/target/linux/brcm47xx/patches-3.18/034-MIPS-BCM47XX-Initialize-bcma-bus-later-with-mm-avail.patch new file mode 100644 index 0000000000..54680de0b7 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.18/034-MIPS-BCM47XX-Initialize-bcma-bus-later-with-mm-avail.patch @@ -0,0 +1,120 @@ +From e5810fa0c1bed16fdfb408862a2e17e962ec5cf6 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Tue, 28 Oct 2014 14:40:38 +0100 +Subject: [PATCH 158/158] MIPS: BCM47XX: Initialize bcma bus later (with mm + available) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +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> +--- + arch/mips/bcm47xx/bcm47xx_private.h | 3 +++ + arch/mips/bcm47xx/irq.c | 8 ++++++++ + arch/mips/bcm47xx/setup.c | 33 +++++++++++++++++++++++++++------ + 3 files changed, 38 insertions(+), 6 deletions(-) + +diff --git a/arch/mips/bcm47xx/bcm47xx_private.h b/arch/mips/bcm47xx/bcm47xx_private.h +index 12a112d..ea909a5 100644 +--- a/arch/mips/bcm47xx/bcm47xx_private.h ++++ b/arch/mips/bcm47xx/bcm47xx_private.h +@@ -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); + +diff --git a/arch/mips/bcm47xx/irq.c b/arch/mips/bcm47xx/irq.c +index e0585b7..21b4497 100644 +--- a/arch/mips/bcm47xx/irq.c ++++ b/arch/mips/bcm47xx/irq.c +@@ -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, +diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c +index 444c65a..e43b504 100644 +--- a/arch/mips/bcm47xx/setup.c ++++ b/arch/mips/bcm47xx/setup.c +@@ -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 = ¤t_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()); + } +-- +1.8.4.5 + |