diff options
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/brcmstb_dpfe.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c index 21242c401af5..3516ee81ae5c 100644 --- a/drivers/memory/brcmstb_dpfe.c +++ b/drivers/memory/brcmstb_dpfe.c @@ -202,17 +202,26 @@ static const u32 dpfe_commands[DPFE_CMD_MAX][MSG_FIELD_MAX] = { }, }; +static bool is_dcpu_enabled(void __iomem *regs) +{ + u32 val; + + val = readl_relaxed(regs + REG_DCPU_RESET); + + return !(val & DCPU_RESET_MASK); +} + static void __disable_dcpu(void __iomem *regs) { u32 val; - /* Check if DCPU is running */ + if (!is_dcpu_enabled(regs)) + return; + + /* Put DCPU in reset if it's running. */ val = readl_relaxed(regs + REG_DCPU_RESET); - if (!(val & DCPU_RESET_MASK)) { - /* Put DCPU in reset */ - val |= (1 << DCPU_RESET_SHIFT); - writel_relaxed(val, regs + REG_DCPU_RESET); - } + val |= (1 << DCPU_RESET_SHIFT); + writel_relaxed(val, regs + REG_DCPU_RESET); } static void __enable_dcpu(void __iomem *regs) |