5c69047aaf
Add clockdev lookup support for easier providing of clocks for devices. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
105 lines
2.8 KiB
Diff
105 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
|
|
@@ -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 */
|
|
@@ -444,6 +483,8 @@ 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),
|
|
};
|