openwrt/target/linux/bcm63xx/patches-4.14/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch
Adrian Schmutzler e7bfda2c24 brcm63xx: rename target to bcm63xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-02-14 14:10:51 +01:00

106 lines
2.8 KiB
Diff

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
@@ -122,21 +122,56 @@ 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 */
@@ -261,8 +296,12 @@ 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 */
@@ -451,6 +490,8 @@ 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),
};