From f2d1035e956052d29c83fe8f8da0d056af6d221a Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Sun, 28 Oct 2012 11:49:53 +0000 Subject: MIPS: BCM63XX: add and use a clock for PCIe Add a PCIe clock and use that instead of directly touching the clock control register. While at it, fail if there is no such clock. Signed-off-by: Jonas Gorski Acked-by: Florian Fainelli Patchwork: http://patchwork.linux-mips.org/patch/4452 Signed-off-by: John Crispin --- arch/mips/bcm63xx/clk.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch/mips/bcm63xx/clk.c') diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c index dff79ab6005..89a5fb07786 100644 --- a/arch/mips/bcm63xx/clk.c +++ b/arch/mips/bcm63xx/clk.c @@ -252,6 +252,19 @@ static struct clk clk_ipsec = { .set = ipsec_set, }; +/* + * PCIe clock + */ + +static void pcie_set(struct clk *clk, int enable) +{ + bcm_hwclock_set(CKCTL_6328_PCIE_EN, enable); +} + +static struct clk clk_pcie = { + .set = pcie_set, +}; + /* * Internal peripheral clock */ @@ -313,6 +326,8 @@ struct clk *clk_get(struct device *dev, const char *id) return &clk_pcm; if (BCMCPU_IS_6368() && !strcmp(id, "ipsec")) return &clk_ipsec; + if (BCMCPU_IS_6328() && !strcmp(id, "pcie")) + return &clk_pcie; return ERR_PTR(-ENOENT); } -- cgit v1.2.3-70-g09d2