diff options
| author | Heiko Schocher <hs@denx.de> | 2012-05-30 12:18:58 +0200 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2012-07-05 14:12:35 +0530 |
| commit | 961e657f5a34e3f4ce2cb74cfab11f5c666b03e5 (patch) | |
| tree | cd1f4b2093aaf71bceb8b38aacbe6dc2fad25f2a /arch/arm/mach-davinci | |
| parent | ce9dcb8784611c50974d1c6b600c71f5c0a29308 (diff) | |
ARM: davinci: cp_intc: Add OF support for TI interrupt controller
Add a function to initialize the Common Platform Interrupt Controller
(cp_intc) from TI used on OMAP-L1x SoCs using a device tree node.
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: davinci-linux-open-source@linux.davincidsp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/mach-davinci')
| -rw-r--r-- | arch/arm/mach-davinci/cp_intc.c | 16 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/cp_intc.h | 1 |
2 files changed, 14 insertions, 3 deletions
diff --git a/arch/arm/mach-davinci/cp_intc.c b/arch/arm/mach-davinci/cp_intc.c index 45d52567ced..006dae8dfe4 100644 --- a/arch/arm/mach-davinci/cp_intc.c +++ b/arch/arm/mach-davinci/cp_intc.c @@ -14,6 +14,9 @@ #include <linux/irq.h> #include <linux/irqdomain.h> #include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #include <mach/common.h> #include <mach/cp_intc.h> @@ -119,7 +122,7 @@ static const struct irq_domain_ops cp_intc_host_ops = { .xlate = irq_domain_xlate_onetwocell, }; -int __init __cp_intc_init(struct device_node *node) +int __init cp_intc_of_init(struct device_node *node, struct device_node *parent) { u32 num_irq = davinci_soc_info.intc_irq_num; u8 *irq_prio = davinci_soc_info.intc_irq_prios; @@ -128,7 +131,14 @@ int __init __cp_intc_init(struct device_node *node) int i, irq_base; davinci_intc_type = DAVINCI_INTC_TYPE_CP_INTC; - davinci_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K); + if (node) { + davinci_intc_base = of_iomap(node, 0); + if (of_property_read_u32(node, "ti,intc-size", &num_irq)) + pr_warn("unable to get intc-size, default to %d\n", + num_irq); + } else { + davinci_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K); + } if (WARN_ON(!davinci_intc_base)) return -EINVAL; @@ -208,5 +218,5 @@ int __init __cp_intc_init(struct device_node *node) void __init cp_intc_init(void) { - __cp_intc_init(NULL); + cp_intc_of_init(NULL, NULL); } diff --git a/arch/arm/mach-davinci/include/mach/cp_intc.h b/arch/arm/mach-davinci/include/mach/cp_intc.h index 4e8190eed67..d13d8dfa2b0 100644 --- a/arch/arm/mach-davinci/include/mach/cp_intc.h +++ b/arch/arm/mach-davinci/include/mach/cp_intc.h @@ -52,5 +52,6 @@ #define CP_INTC_VECTOR_ADDR(n) (0x2000 + (n << 2)) void __init cp_intc_init(void); +int __init cp_intc_of_init(struct device_node *, struct device_node *); #endif /* __ASM_HARDWARE_CP_INTC_H */ |