diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-02 16:44:16 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-02 16:44:16 +0100 |
commit | aebb2afd5420c860b7fbc3882a323ef1247fbf16 (patch) | |
tree | 05ee0efcebca5ec421de44de7a6d6271088c64a8 /arch/mips/lantiq | |
parent | hsi: fix kernel-doc warnings (diff) | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torval... (diff) | |
download | linux-aebb2afd5420c860b7fbc3882a323ef1247fbf16.tar.xz linux-aebb2afd5420c860b7fbc3882a323ef1247fbf16.zip |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
o Add basic support for the Mediatek/Ralink Wireless SoC family.
o The Qualcomm Atheros platform is extended by support for the new
QCA955X SoC series as well as a bunch of patches that get the code
ready for OF support.
o Lantiq and BCM47XX platform have a few improvements and bug fixes.
o MIPS has sent a few patches that get the kernel ready for the
upcoming microMIPS support.
o The rest of the series is made up of small bug fixes and cleanups
that relate to various parts of the MIPS code. The biggy in there is
a whitespace cleanup. After I was sent another set of whitespace
cleanup patches I decided it was the time to clean the whitespace
"issues" for once and and that touches many files below arch/mips/.
Fix up silly conflicts, mostly due to whitespace cleanups.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits)
MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h
MIPS: remove broken conditional inside vpe loader code
MIPS: SMTC: fix implicit declaration of set_vi_handler
MIPS: early_printk: drop __init annotations
MIPS: Probe for and report hardware virtualization support.
MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board
MIPS: ath79: add USB controller registration code for the QCA955X SoCs
MIPS: ath79: add PCI controller registration code for the QCA955X SoCs
MIPS: ath79: add WMAC registration code for the QCA955X SoCs
MIPS: ath79: register UART for the QCA955X SoCs
MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}
MIPS: ath79: add GPIO setup code for the QCA955X SoCs
MIPS: ath79: add IRQ handling code for the QCA955X SoCs
MIPS: ath79: add clock setup code for the QCA955X SoCs
MIPS: ath79: add SoC detection code for the QCA955X SoCs
MIPS: ath79: add early printk support for the QCA955X SoCs
MIPS: ath79: fix WMAC IRQ resource assignment
mips: reserve elfcorehdr
mips: Make sure kernel memory is in iomem
MIPS: ath79: use dynamically allocated USB platform devices
...
Diffstat (limited to 'arch/mips/lantiq')
-rw-r--r-- | arch/mips/lantiq/clk.c | 18 | ||||
-rw-r--r-- | arch/mips/lantiq/clk.h | 7 | ||||
-rw-r--r-- | arch/mips/lantiq/dts/danube.dtsi | 2 | ||||
-rw-r--r-- | arch/mips/lantiq/dts/easy50712.dts | 2 | ||||
-rw-r--r-- | arch/mips/lantiq/falcon/sysctrl.c | 4 | ||||
-rw-r--r-- | arch/mips/lantiq/irq.c | 105 | ||||
-rw-r--r-- | arch/mips/lantiq/prom.h | 2 | ||||
-rw-r--r-- | arch/mips/lantiq/xway/clk.c | 43 | ||||
-rw-r--r-- | arch/mips/lantiq/xway/reset.c | 9 | ||||
-rw-r--r-- | arch/mips/lantiq/xway/sysctrl.c | 15 |
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 = <q_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()); } } |