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| author | Stefan Roese <sr@denx.de> | 2015-05-18 16:09:43 +0000 |
|---|---|---|
| committer | Luka Perkov <luka.perkov@sartura.hr> | 2015-06-14 17:48:28 +0200 |
| commit | 5730360efc153aefaddb980287a3b3c8eab26351 (patch) | |
| tree | 3fa3e313a14b66dffc7ec6a15cdb09f117f42b4b /arch | |
| parent | a0aad12346b2cc848b8d592067ca74cb6a1721f8 (diff) | |
| download | u-boot-imx-5730360efc153aefaddb980287a3b3c8eab26351.zip u-boot-imx-5730360efc153aefaddb980287a3b3c8eab26351.tar.gz u-boot-imx-5730360efc153aefaddb980287a3b3c8eab26351.tar.bz2 | |
arm: mvebu: Disable L2 cache before enabling d-cache
L2 cache may still be enabled by the BootROM. We need to first disable
it before enabling d-cache support.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mvebu/cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c index 04681fc..417fc35 100644 --- a/arch/arm/mach-mvebu/cpu.c +++ b/arch/arm/mach-mvebu/cpu.c @@ -7,6 +7,7 @@ #include <common.h> #include <netdev.h> #include <asm/io.h> +#include <asm/pl310.h> #include <asm/arch/cpu.h> #include <asm/arch/soc.h> @@ -240,6 +241,13 @@ int cpu_eth_init(bd_t *bis) #ifndef CONFIG_SYS_DCACHE_OFF void enable_caches(void) { + struct pl310_regs *const pl310 = + (struct pl310_regs *)CONFIG_SYS_PL310_BASE; + + /* First disable L2 cache - may still be enable from BootROM */ + if (mvebu_soc_family() == MVEBU_SOC_A38X) + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); + /* Avoid problem with e.g. neta ethernet driver */ invalidate_dcache_all(); |