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Diffstat (limited to 'arch/mips/bcm63xx/clk.c')
-rw-r--r--arch/mips/bcm63xx/clk.c70
1 files changed, 67 insertions, 3 deletions
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 2c68ee9ccee..9d57c71b7b5 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -10,6 +10,7 @@
#include <linux/mutex.h>
#include <linux/err.h>
#include <linux/clk.h>
+#include <linux/delay.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_io.h>
#include <bcm63xx_regs.h>
@@ -113,6 +114,34 @@ static struct clk clk_ephy = {
};
/*
+ * Ethernet switch clock
+ */
+static void enetsw_set(struct clk *clk, int enable)
+{
+ if (!BCMCPU_IS_6368())
+ return;
+ bcm_hwclock_set(CKCTL_6368_ROBOSW_CLK_EN |
+ CKCTL_6368_SWPKT_USB_EN |
+ CKCTL_6368_SWPKT_SAR_EN, enable);
+ if (enable) {
+ u32 val;
+
+ /* reset switch core afer clock change */
+ val = bcm_perf_readl(PERF_SOFTRESET_6368_REG);
+ val &= ~SOFTRESET_6368_ENETSW_MASK;
+ bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ msleep(10);
+ val |= SOFTRESET_6368_ENETSW_MASK;
+ bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ msleep(10);
+ }
+}
+
+static struct clk clk_enetsw = {
+ .set = enetsw_set,
+};
+
+/*
* PCM clock
*/
static void pcm_set(struct clk *clk, int enable)
@@ -131,9 +160,10 @@ static struct clk clk_pcm = {
*/
static void usbh_set(struct clk *clk, int enable)
{
- if (!BCMCPU_IS_6348())
- return;
- bcm_hwclock_set(CKCTL_6348_USBH_EN, enable);
+ if (BCMCPU_IS_6348())
+ bcm_hwclock_set(CKCTL_6348_USBH_EN, enable);
+ else if (BCMCPU_IS_6368())
+ bcm_hwclock_set(CKCTL_6368_USBH_CLK_EN, enable);
}
static struct clk clk_usbh = {
@@ -162,6 +192,36 @@ static struct clk clk_spi = {
};
/*
+ * XTM clock
+ */
+static void xtm_set(struct clk *clk, int enable)
+{
+ if (!BCMCPU_IS_6368())
+ return;
+
+ bcm_hwclock_set(CKCTL_6368_SAR_CLK_EN |
+ CKCTL_6368_SWPKT_SAR_EN, enable);
+
+ if (enable) {
+ u32 val;
+
+ /* reset sar core afer clock change */
+ val = bcm_perf_readl(PERF_SOFTRESET_6368_REG);
+ val &= ~SOFTRESET_6368_SAR_MASK;
+ bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ mdelay(1);
+ val |= SOFTRESET_6368_SAR_MASK;
+ bcm_perf_writel(val, PERF_SOFTRESET_6368_REG);
+ mdelay(1);
+ }
+}
+
+
+static struct clk clk_xtm = {
+ .set = xtm_set,
+};
+
+/*
* Internal peripheral clock
*/
static struct clk clk_periph = {
@@ -204,12 +264,16 @@ struct clk *clk_get(struct device *dev, const char *id)
return &clk_enet0;
if (!strcmp(id, "enet1"))
return &clk_enet1;
+ if (!strcmp(id, "enetsw"))
+ return &clk_enetsw;
if (!strcmp(id, "ephy"))
return &clk_ephy;
if (!strcmp(id, "usbh"))
return &clk_usbh;
if (!strcmp(id, "spi"))
return &clk_spi;
+ if (!strcmp(id, "xtm"))
+ return &clk_xtm;
if (!strcmp(id, "periph"))
return &clk_periph;
if (BCMCPU_IS_6358() && !strcmp(id, "pcm"))