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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-15 01:05:21 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-15 01:05:21 +0400
commit4964e0664c80680fa6b28ef91381c076a5b25c2c (patch)
tree62099c5aaeee7274bcc66bcfba35d479affa97cf /arch/mips/bcm63xx/clk.c
parent0a80939b3e6af4b0dc93bf88ec02fd7e90a16f1b (diff)
parent7bf6612e8a9d6a0b3b82e8e2611942be1258b307 (diff)
downloadlinux-4964e0664c80680fa6b28ef91381c076a5b25c2c.tar.xz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits) MIPS: Delete unused function add_temporary_entry. MIPS: Set default pci cache line size. MIPS: Flush huge TLB MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM. MIPS: Octeon: Add support for OCTEON II PCIe MIPS: Octeon: Update PCI Latency timer and enable more error reporting. MIPS: Alchemy: Update cpu-feature-overrides MIPS: Alchemy: db1200: Improve PB1200 detection. MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code. MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller MIPS: Alchemy: irq: register pm at irq init time MIPS: Alchemy: Touchscreen support on DB1100 MIPS: Alchemy: Hook up IrDA on DB1000/DB1100 net/irda: convert au1k_ir to platform driver. MIPS: Alchemy: remove unused board headers MTD: nand: make au1550nd.c a platform_driver MIPS: Netlogic: Mark Netlogic chips as SMT capable MIPS: Netlogic: Add support for XLP 3XX cores MIPS: Netlogic: Merge some of XLR/XLP wakup code MIPS: Netlogic: Add default XLP config. ... Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c, traps.c} and drivers/tty/serial/Makefile
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 2c68ee9ccee2..9d57c71b7b58 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"))