diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch b/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch new file mode 100644 index 0000000000..f9698c2501 --- /dev/null +++ b/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch @@ -0,0 +1,105 @@ +From b98027285bd1fa95da0645a4234a5fc1f1a83f92 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jonas.gorski@gmail.com> +Date: Sun, 26 Feb 2017 11:59:52 +0100 +Subject: [PATCH V2 8/8] MIPS: BCM63XX: split out swpkt_sar/usb clocks + +Make the secondary switch clocks their own clocks. This allows proper +enable reference counting between SAR/XTM and the main switch clocks, +and controlling them individually from drivers. + +Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> +--- + arch/mips/bcm63xx/clk.c | 61 +++++++++++++++++++++++++++++++++++++++++-------- + 1 file changed, 51 insertions(+), 10 deletions(-) + +--- a/arch/mips/bcm63xx/clk.c ++++ b/arch/mips/bcm63xx/clk.c +@@ -121,21 +121,56 @@ static struct clk clk_ephy = { + }; + + /* ++ * Ethernet switch SAR clock ++ */ ++static void swpkt_sar_set(struct clk *clk, int enable) ++{ ++ if (BCMCPU_IS_6368()) ++ bcm_hwclock_set(CKCTL_6368_SWPKT_SAR_EN, enable); ++ else ++ return; ++} ++ ++static struct clk clk_swpkt_sar = { ++ .set = swpkt_sar_set, ++}; ++ ++/* ++ * Ethernet switch USB clock ++ */ ++static void swpkt_usb_set(struct clk *clk, int enable) ++{ ++ if (BCMCPU_IS_6368()) ++ bcm_hwclock_set(CKCTL_6368_SWPKT_USB_EN, enable); ++ else ++ return; ++} ++ ++static struct clk clk_swpkt_usb = { ++ .set = swpkt_usb_set, ++}; ++ ++/* + * Ethernet switch clock + */ + static void enetsw_set(struct clk *clk, int enable) + { +- if (BCMCPU_IS_6328()) ++ if (BCMCPU_IS_6328()) { + bcm_hwclock_set(CKCTL_6328_ROBOSW_EN, enable); +- else if (BCMCPU_IS_6362()) ++ } else if (BCMCPU_IS_6362()) { + bcm_hwclock_set(CKCTL_6362_ROBOSW_EN, enable); +- else if (BCMCPU_IS_6368()) +- bcm_hwclock_set(CKCTL_6368_ROBOSW_EN | +- CKCTL_6368_SWPKT_USB_EN | +- CKCTL_6368_SWPKT_SAR_EN, +- enable); +- else ++ } else if (BCMCPU_IS_6368()) { ++ if (enable) { ++ clk_enable_unlocked(&clk_swpkt_sar); ++ clk_enable_unlocked(&clk_swpkt_usb); ++ } else { ++ clk_disable_unlocked(&clk_swpkt_usb); ++ clk_disable_unlocked(&clk_swpkt_sar); ++ } ++ bcm_hwclock_set(CKCTL_6368_ROBOSW_EN, enable); ++ } else { + return; ++ } + + if (enable) { + /* reset switch core afer clock change */ +@@ -260,8 +295,12 @@ static void xtm_set(struct clk *clk, int + if (!BCMCPU_IS_6368()) + return; + +- bcm_hwclock_set(CKCTL_6368_SAR_EN | +- CKCTL_6368_SWPKT_SAR_EN, enable); ++ if (enable) ++ clk_enable_unlocked(&clk_swpkt_sar); ++ else ++ clk_disable_unlocked(&clk_swpkt_sar); ++ ++ bcm_hwclock_set(CKCTL_6368_SAR_EN, enable); + + if (enable) { + /* reset sar core afer clock change */ +@@ -447,6 +486,8 @@ static struct clk_lookup bcm6358_clks[] + CLKDEV_INIT(NULL, "usbd", &clk_usbd), + CLKDEV_INIT(NULL, "spi", &clk_spi), + CLKDEV_INIT(NULL, "pcm", &clk_pcm), ++ CLKDEV_INIT(NULL, "swpkt_sar", &clk_swpkt_sar), ++ CLKDEV_INIT(NULL, "swpkt_usb", &clk_swpkt_usb), + CLKDEV_INIT("bcm63xx_enet.0", "enet", &clk_enet0), + CLKDEV_INIT("bcm63xx_enet.1", "enet", &clk_enet1), + }; |