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| author | Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> | 2014-07-30 10:39:34 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-07-31 07:27:16 +0200 |
| commit | 7587a04434349dcae5c0ea024c65705b01c1a825 (patch) | |
| tree | 98df498fb46f1c010b9f5905857b003073c9a6c1 /arch/arm/mach-mvebu | |
| parent | 722e90e32a318d71c4f8259ec98ae16c1bd8192f (diff) | |
| download | barebox-7587a04434349dcae5c0ea024c65705b01c1a825.tar.gz barebox-7587a04434349dcae5c0ea024c65705b01c1a825.tar.xz | |
ARM: mvebu: armada-370-xp: disable MBUS error propagation
Accessing MBUS windows not backed-up by e.g. PCIe devices will
hang the SoC. Disable MBUS error propagation back to CPU allows
to read 0xffffffff instead of hanging the SoC.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/armada-370-xp.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c index 666ae077f6..f2b991e5a7 100644 --- a/arch/arm/mach-mvebu/armada-370-xp.c +++ b/arch/arm/mach-mvebu/armada-370-xp.c @@ -47,10 +47,16 @@ static inline void armada_370_xp_memory_find(unsigned long *phys_base, static int armada_370_xp_init_soc(void) { unsigned long phys_base, phys_size; + u32 reg; barebox_set_model("Marvell Armada 370/XP"); barebox_set_hostname("armada"); + /* Disable MBUS error propagation */ + reg = readl(ARMADA_370_XP_FABRIC_BASE); + reg &= ~BIT(8); + writel(reg, ARMADA_370_XP_FABRIC_BASE); + armada_370_xp_memory_find(&phys_base, &phys_size); mvebu_set_memory(phys_base, phys_size); diff --git a/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h b/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h index 5fd16e5733..ccc687c03b 100644 --- a/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h +++ b/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h @@ -42,6 +42,8 @@ #define DDR_SIZE_CS_SHIFT 2 #define DDR_SIZE_MASK 0xff000000 +#define ARMADA_370_XP_FABRIC_BASE (ARMADA_370_XP_INT_REGS_BASE + 0x20200) + #define ARMADA_370_XP_TIMER_BASE (ARMADA_370_XP_INT_REGS_BASE + 0x20300) #endif /* __MACH_MVEBU_DOVE_REGS_H */ |