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Commit d56e746f authored by Markus Mayer's avatar Markus Mayer Committed by Florian Fainelli
Browse files

memory: brcmstb: dpfe: introduce is_dcpu_enabled() 



In order to check whether or not the DCPU is running, we introduce
a function called is_dcpu_enabled().

Signed-off-by: default avatarMarkus Mayer <mmayer@broadcom.com>
Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
parent 0e9b1141

drivers/memory/brcmstb_dpfe.c

+15 −6
Original line number Diff line number Diff line
@@ -202,18 +202,27 @@ 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);

}

}



static void __enable_dcpu(void __iomem *regs)

{