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-rw-r--r--arch/mips/lantiq/clk.c18
-rw-r--r--arch/mips/lantiq/clk.h7
-rw-r--r--arch/mips/lantiq/dts/danube.dtsi2
-rw-r--r--arch/mips/lantiq/dts/easy50712.dts2
-rw-r--r--arch/mips/lantiq/falcon/sysctrl.c4
-rw-r--r--arch/mips/lantiq/irq.c105
-rw-r--r--arch/mips/lantiq/prom.h2
-rw-r--r--arch/mips/lantiq/xway/clk.c43
-rw-r--r--arch/mips/lantiq/xway/reset.c9
-rw-r--r--arch/mips/lantiq/xway/sysctrl.c15
10 files changed, 158 insertions, 49 deletions
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index ce2f129b081f..3fc2e6d70c77 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -26,13 +26,15 @@
#include "prom.h"
/* lantiq socs have 3 static clocks */
-static struct clk cpu_clk_generic[3];
+static struct clk cpu_clk_generic[4];
-void clkdev_add_static(unsigned long cpu, unsigned long fpi, unsigned long io)
+void clkdev_add_static(unsigned long cpu, unsigned long fpi,
+ unsigned long io, unsigned long ppe)
{
cpu_clk_generic[0].rate = cpu;
cpu_clk_generic[1].rate = fpi;
cpu_clk_generic[2].rate = io;
+ cpu_clk_generic[3].rate = ppe;
}
struct clk *clk_get_cpu(void)
@@ -51,6 +53,12 @@ struct clk *clk_get_io(void)
return &cpu_clk_generic[2];
}
+struct clk *clk_get_ppe(void)
+{
+ return &cpu_clk_generic[3];
+}
+EXPORT_SYMBOL_GPL(clk_get_ppe);
+
static inline int clk_good(struct clk *clk)
{
return clk && !IS_ERR(clk);
@@ -145,9 +153,9 @@ static inline u32 get_counter_resolution(void)
u32 res;
__asm__ __volatile__(
- ".set push\n"
- ".set mips32r2\n"
- "rdhwr %0, $3\n"
+ ".set push\n"
+ ".set mips32r2\n"
+ "rdhwr %0, $3\n"
".set pop\n"
: "=&r" (res)
: /* no input */
diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h
index fa670602b91b..77e4bdb1fe8c 100644
--- a/arch/mips/lantiq/clk.h
+++ b/arch/mips/lantiq/clk.h
@@ -27,12 +27,15 @@
#define CLOCK_167M 166666667
#define CLOCK_196_608M 196608000
#define CLOCK_200M 200000000
+#define CLOCK_222M 222000000
+#define CLOCK_240M 240000000
#define CLOCK_250M 250000000
#define CLOCK_266M 266666666
#define CLOCK_300M 300000000
#define CLOCK_333M 333333333
#define CLOCK_393M 393215332
#define CLOCK_400M 400000000
+#define CLOCK_450M 450000000
#define CLOCK_500M 500000000
#define CLOCK_600M 600000000
@@ -64,15 +67,17 @@ struct clk {
};
extern void clkdev_add_static(unsigned long cpu, unsigned long fpi,
- unsigned long io);
+ unsigned long io, unsigned long ppe);
extern unsigned long ltq_danube_cpu_hz(void);
extern unsigned long ltq_danube_fpi_hz(void);
+extern unsigned long ltq_danube_pp32_hz(void);
extern unsigned long ltq_ar9_cpu_hz(void);
extern unsigned long ltq_ar9_fpi_hz(void);
extern unsigned long ltq_vr9_cpu_hz(void);
extern unsigned long ltq_vr9_fpi_hz(void);
+extern unsigned long ltq_vr9_pp32_hz(void);
#endif
diff --git a/arch/mips/lantiq/dts/danube.dtsi b/arch/mips/lantiq/dts/danube.dtsi
index 3a4520f009cf..d4c59e003708 100644
--- a/arch/mips/lantiq/dts/danube.dtsi
+++ b/arch/mips/lantiq/dts/danube.dtsi
@@ -97,7 +97,7 @@
compatible = "lantiq,pci-xway";
bus-range = <0x0 0x0>;
ranges = <0x2000000 0 0x8000000 0x8000000 0 0x2000000 /* pci memory */
- 0x1000000 0 0x00000000 0xAE00000 0 0x200000>; /* io space */
+ 0x1000000 0 0x00000000 0xAE00000 0 0x200000>; /* io space */
reg = <0x7000000 0x8000 /* config space */
0xE105400 0x400>; /* pci bridge */
};
diff --git a/arch/mips/lantiq/dts/easy50712.dts b/arch/mips/lantiq/dts/easy50712.dts
index 68c17310bc82..fac1f5b178eb 100644
--- a/arch/mips/lantiq/dts/easy50712.dts
+++ b/arch/mips/lantiq/dts/easy50712.dts
@@ -103,7 +103,7 @@
lantiq,bus-clock = <33333333>;
interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
interrupt-map = <
- 0x7000 0 0 1 &icu0 29 1 // slot 14, irq 29
+ 0x7000 0 0 1 &icu0 29 1 // slot 14, irq 29
>;
gpios-reset = <&gpio 21 0>;
req-mask = <0x1>; /* GNT1 */
diff --git a/arch/mips/lantiq/falcon/sysctrl.c b/arch/mips/lantiq/falcon/sysctrl.c
index 2d4ced332b37..ff4894a833ee 100644
--- a/arch/mips/lantiq/falcon/sysctrl.c
+++ b/arch/mips/lantiq/falcon/sysctrl.c
@@ -241,9 +241,9 @@ void __init ltq_soc_init(void)
/* get our 3 static rates for cpu, fpi and io clocks */
if (ltq_sys1_r32(SYS1_CPU0CC) & CPU0CC_CPUDIV)
- clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M);
+ clkdev_add_static(CLOCK_200M, CLOCK_100M, CLOCK_200M, 0);
else
- clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M);
+ clkdev_add_static(CLOCK_400M, CLOCK_100M, CLOCK_200M, 0);
/* add our clock domains */
clkdev_add_sys("1d810000.gpio", SYSCTL_SYSETH, ACTS_P0);
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index a7935bf0fecb..51194875f158 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -33,17 +33,10 @@
/* register definitions - external irqs */
#define LTQ_EIU_EXIN_C 0x0000
#define LTQ_EIU_EXIN_INIC 0x0004
+#define LTQ_EIU_EXIN_INC 0x0008
#define LTQ_EIU_EXIN_INEN 0x000C
-/* irq numbers used by the external interrupt unit (EIU) */
-#define LTQ_EIU_IR0 (INT_NUM_IM4_IRL0 + 30)
-#define LTQ_EIU_IR1 (INT_NUM_IM3_IRL0 + 31)
-#define LTQ_EIU_IR2 (INT_NUM_IM1_IRL0 + 26)
-#define LTQ_EIU_IR3 INT_NUM_IM1_IRL0
-#define LTQ_EIU_IR4 (INT_NUM_IM1_IRL0 + 1)
-#define LTQ_EIU_IR5 (INT_NUM_IM1_IRL0 + 2)
-#define LTQ_EIU_IR6 (INT_NUM_IM2_IRL0 + 30)
-#define XWAY_EXIN_COUNT 3
+/* number of external interrupts */
#define MAX_EIU 6
/* the performance counter */
@@ -72,20 +65,19 @@
int gic_present;
#endif
-static unsigned short ltq_eiu_irq[MAX_EIU] = {
- LTQ_EIU_IR0,
- LTQ_EIU_IR1,
- LTQ_EIU_IR2,
- LTQ_EIU_IR3,
- LTQ_EIU_IR4,
- LTQ_EIU_IR5,
-};
-
static int exin_avail;
+static struct resource ltq_eiu_irq[MAX_EIU];
static void __iomem *ltq_icu_membase[MAX_IM];
static void __iomem *ltq_eiu_membase;
static struct irq_domain *ltq_domain;
+int ltq_eiu_get_irq(int exin)
+{
+ if (exin < exin_avail)
+ return ltq_eiu_irq[exin].start;
+ return -1;
+}
+
void ltq_disable_irq(struct irq_data *d)
{
u32 ier = LTQ_ICU_IM0_IER;
@@ -128,19 +120,65 @@ void ltq_enable_irq(struct irq_data *d)
ltq_icu_w32(im, ltq_icu_r32(im, ier) | BIT(offset), ier);
}
+static int ltq_eiu_settype(struct irq_data *d, unsigned int type)
+{
+ int i;
+
+ for (i = 0; i < MAX_EIU; i++) {
+ if (d->hwirq == ltq_eiu_irq[i].start) {
+ int val = 0;
+ int edge = 0;
+
+ switch (type) {
+ case IRQF_TRIGGER_NONE:
+ break;
+ case IRQF_TRIGGER_RISING:
+ val = 1;
+ edge = 1;
+ break;
+ case IRQF_TRIGGER_FALLING:
+ val = 2;
+ edge = 1;
+ break;
+ case IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING:
+ val = 3;
+ edge = 1;
+ break;
+ case IRQF_TRIGGER_HIGH:
+ val = 5;
+ break;
+ case IRQF_TRIGGER_LOW:
+ val = 6;
+ break;
+ default:
+ pr_err("invalid type %d for irq %ld\n",
+ type, d->hwirq);
+ return -EINVAL;
+ }
+
+ if (edge)
+ irq_set_handler(d->hwirq, handle_edge_irq);
+
+ ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
+ (val << (i * 4)), LTQ_EIU_EXIN_C);
+ }
+ }
+
+ return 0;
+}
+
static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
{
int i;
ltq_enable_irq(d);
for (i = 0; i < MAX_EIU; i++) {
- if (d->hwirq == ltq_eiu_irq[i]) {
- /* low level - we should really handle set_type */
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
- (0x6 << (i * 4)), LTQ_EIU_EXIN_C);
+ if (d->hwirq == ltq_eiu_irq[i].start) {
+ /* by default we are low level triggered */
+ ltq_eiu_settype(d, IRQF_TRIGGER_LOW);
/* clear all pending */
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INIC) & ~BIT(i),
- LTQ_EIU_EXIN_INIC);
+ ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INC) & ~BIT(i),
+ LTQ_EIU_EXIN_INC);
/* enable */
ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) | BIT(i),
LTQ_EIU_EXIN_INEN);
@@ -157,7 +195,7 @@ static void ltq_shutdown_eiu_irq(struct irq_data *d)
ltq_disable_irq(d);
for (i = 0; i < MAX_EIU; i++) {
- if (d->hwirq == ltq_eiu_irq[i]) {
+ if (d->hwirq == ltq_eiu_irq[i].start) {
/* disable */
ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~BIT(i),
LTQ_EIU_EXIN_INEN);
@@ -186,6 +224,7 @@ static struct irq_chip ltq_eiu_type = {
.irq_ack = ltq_ack_irq,
.irq_mask = ltq_disable_irq,
.irq_mask_ack = ltq_mask_and_ack_irq,
+ .irq_set_type = ltq_eiu_settype,
};
static void ltq_hw_irqdispatch(int module)
@@ -301,7 +340,7 @@ static int icu_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
return 0;
for (i = 0; i < exin_avail; i++)
- if (hw == ltq_eiu_irq[i])
+ if (hw == ltq_eiu_irq[i].start)
chip = &ltq_eiu_type;
irq_set_chip_and_handler(hw, chip, handle_level_irq);
@@ -323,7 +362,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
{
struct device_node *eiu_node;
struct resource res;
- int i;
+ int i, ret;
for (i = 0; i < MAX_IM; i++) {
if (of_address_to_resource(node, i, &res))
@@ -340,17 +379,19 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
}
/* the external interrupts are optional and xway only */
- eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu");
+ eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu-xway");
if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) {
/* find out how many external irq sources we have */
- const __be32 *count = of_get_property(node,
- "lantiq,count", NULL);
+ exin_avail = of_irq_count(eiu_node);
- if (count)
- exin_avail = *count;
if (exin_avail > MAX_EIU)
exin_avail = MAX_EIU;
+ ret = of_irq_to_resource_table(eiu_node,
+ ltq_eiu_irq, exin_avail);
+ if (ret != exin_avail)
+ panic("failed to load external irq resources\n");
+
if (request_mem_region(res.start, resource_size(&res),
res.name) < 0)
pr_err("Failed to request eiu memory");
diff --git a/arch/mips/lantiq/prom.h b/arch/mips/lantiq/prom.h
index a3fa1a2bfaae..8e07b5f28ef1 100644
--- a/arch/mips/lantiq/prom.h
+++ b/arch/mips/lantiq/prom.h
@@ -10,7 +10,7 @@
#define _LTQ_PROM_H__
#define LTQ_SYS_TYPE_LEN 0x100
-#define LTQ_SYS_REV_LEN 0x10
+#define LTQ_SYS_REV_LEN 0x10
struct ltq_soc_info {
unsigned char *name;
diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
index 9aa17f79a742..1ab576dc9bd1 100644
--- a/arch/mips/lantiq/xway/clk.c
+++ b/arch/mips/lantiq/xway/clk.c
@@ -53,6 +53,29 @@ unsigned long ltq_danube_cpu_hz(void)
}
}
+unsigned long ltq_danube_pp32_hz(void)
+{
+ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 7) & 3;
+ unsigned long clk;
+
+ switch (clksys) {
+ case 1:
+ clk = CLOCK_240M;
+ break;
+ case 2:
+ clk = CLOCK_222M;
+ break;
+ case 3:
+ clk = CLOCK_133M;
+ break;
+ default:
+ clk = CLOCK_266M;
+ break;
+ }
+
+ return clk;
+}
+
unsigned long ltq_ar9_sys_hz(void)
{
if (((ltq_cgu_r32(CGU_SYS) >> 3) & 0x3) == 0x2)
@@ -149,3 +172,23 @@ unsigned long ltq_vr9_fpi_hz(void)
return clk;
}
+
+unsigned long ltq_vr9_pp32_hz(void)
+{
+ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 3;
+ unsigned long clk;
+
+ switch (clksys) {
+ case 1:
+ clk = CLOCK_450M;
+ break;
+ case 2:
+ clk = CLOCK_300M;
+ break;
+ default:
+ clk = CLOCK_500M;
+ break;
+ }
+
+ return clk;
+}
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
index 544dbb7fb421..1fa0f175357e 100644
--- a/arch/mips/lantiq/xway/reset.c
+++ b/arch/mips/lantiq/xway/reset.c
@@ -78,10 +78,19 @@ static struct ltq_xrx200_gphy_reset {
/* reset and boot a gphy. these phys only exist on xrx200 SoC */
int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
{
+ struct clk *clk;
+
if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) {
dev_err(dev, "this SoC has no GPHY\n");
return -EINVAL;
}
+
+ clk = clk_get_sys("1f203000.rcu", "gphy");
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ clk_enable(clk);
+
if (id > 1) {
dev_err(dev, "%u is an invalid gphy id\n", id);
return -EINVAL;
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 3925e6609acc..c24924fe087d 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -305,7 +305,7 @@ void __init ltq_soc_init(void)
/* check if all the core register ranges are available */
if (!np_pmu || !np_cgu || !np_ebu)
- panic("Failed to load core nodess from devicetree");
+ panic("Failed to load core nodes from devicetree");
if (of_address_to_resource(np_pmu, 0, &res_pmu) ||
of_address_to_resource(np_cgu, 0, &res_cgu) ||
@@ -356,14 +356,16 @@ void __init ltq_soc_init(void)
if (of_machine_is_compatible("lantiq,ase")) {
if (ltq_cgu_r32(CGU_SYS) & (1 << 5))
- clkdev_add_static(CLOCK_266M, CLOCK_133M, CLOCK_133M);
+ clkdev_add_static(CLOCK_266M, CLOCK_133M,
+ CLOCK_133M, CLOCK_266M);
else
- clkdev_add_static(CLOCK_133M, CLOCK_133M, CLOCK_133M);
+ clkdev_add_static(CLOCK_133M, CLOCK_133M,
+ CLOCK_133M, CLOCK_133M);
clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY),
clkdev_add_pmu("1e180000.etop", "ephy", 0, PMU_EPHY);
} else if (of_machine_is_compatible("lantiq,vr9")) {
clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
- ltq_vr9_fpi_hz());
+ ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
clkdev_add_pmu("1d900000.pcie", "phy", 1, PMU1_PCIE_PHY);
clkdev_add_pmu("1d900000.pcie", "bus", 0, PMU_PCIE_CLK);
clkdev_add_pmu("1d900000.pcie", "msi", 1, PMU1_PCIE_MSI);
@@ -374,12 +376,13 @@ void __init ltq_soc_init(void)
PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
PMU_PPE_QSB | PMU_PPE_TOP);
+ clkdev_add_pmu("1f203000.rcu", "gphy", 0, PMU_GPHY);
} else if (of_machine_is_compatible("lantiq,ar9")) {
clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
- ltq_ar9_fpi_hz());
+ ltq_ar9_fpi_hz(), CLOCK_250M);
clkdev_add_pmu("1e180000.etop", "switch", 0, PMU_SWITCH);
} else {
clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
- ltq_danube_fpi_hz());
+ ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
}
}
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