[PATCH 1/4] Resources for U5500 mbox driver and modem irq handler
Stefan Nilsson XK
stefan.xk.nilsson at stericsson.com
Fri Sep 24 03:02:16 EDT 2010
For some reason my intro mail got lost in cyberspace,...
This patch set adds a driver for the U5500 mailbox which is used
for modem communication. It also introduces a generic U5500 modem
IRQ handler which can be configured to handle different IRQs from
the modem.
Summary:
arch/arm/mach-ux500/Kconfig | 14 +
arch/arm/mach-ux500/Makefile | 2 +
arch/arm/mach-ux500/cpu-db5500.c | 88 ++++
arch/arm/mach-ux500/include/mach/db5500-regs.h | 14 +
arch/arm/mach-ux500/include/mach/irqs-db5500.h | 1 +
arch/arm/mach-ux500/include/mach/irqs.h | 15 +-
arch/arm/mach-ux500/include/mach/mbox.h | 88 ++++
arch/arm/mach-ux500/mbox.c | 567
++++++++++++++++++++++++
arch/arm/mach-ux500/modem_irq.c | 139 ++++++
9 files changed, 927 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-ux500/include/mach/mbox.h
create mode 100644 arch/arm/mach-ux500/mbox.c
create mode 100644 arch/arm/mach-ux500/modem_irq.c
Best Regards
Stefan Nilsson
On 09/23/2010 07:49 PM, Stefan NILSSON9 wrote:
> From: Stefan Nilsson XK<stefan.xk.nilsson at stericsson.com>
>
> Acked-by: Linus Walleij<linus.walleij at stericsson.com>
> Signed-off-by: Stefan Nilsson XK<stefan.xk.nilsson at stericsson.com>
> ---
> arch/arm/mach-ux500/cpu-db5500.c | 88 ++++++++++++++++++++++++
> arch/arm/mach-ux500/include/mach/db5500-regs.h | 14 ++++
> arch/arm/mach-ux500/include/mach/irqs-db5500.h | 1 +
> arch/arm/mach-ux500/include/mach/irqs.h | 15 ++++-
> 4 files changed, 117 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
> index e9278f6..2f87075 100644
> --- a/arch/arm/mach-ux500/cpu-db5500.c
> +++ b/arch/arm/mach-ux500/cpu-db5500.c
> @@ -14,6 +14,7 @@
> #include<mach/hardware.h>
> #include<mach/devices.h>
> #include<mach/setup.h>
> +#include<mach/irqs.h>
>
> static struct map_desc u5500_io_desc[] __initdata = {
> __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
> @@ -24,6 +25,90 @@ static struct map_desc u5500_io_desc[] __initdata = {
> __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
> };
>
> +static struct resource mbox0_resources[] = {
> + {
> + .name = "mbox_peer",
> + .start = U5500_MBOX0_PEER_START,
> + .end = U5500_MBOX0_PEER_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_local",
> + .start = U5500_MBOX0_LOCAL_START,
> + .end = U5500_MBOX0_LOCAL_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_irq",
> + .start = MBOX_PAIR0_VIRT_IRQ,
> + .end = MBOX_PAIR0_VIRT_IRQ,
> + .flags = IORESOURCE_IRQ,
> + }
> +};
> +
> +static struct resource mbox1_resources[] = {
> + {
> + .name = "mbox_peer",
> + .start = U5500_MBOX1_PEER_START,
> + .end = U5500_MBOX1_PEER_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_local",
> + .start = U5500_MBOX1_LOCAL_START,
> + .end = U5500_MBOX1_LOCAL_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_irq",
> + .start = MBOX_PAIR1_VIRT_IRQ,
> + .end = MBOX_PAIR1_VIRT_IRQ,
> + .flags = IORESOURCE_IRQ,
> + }
> +};
> +
> +static struct resource mbox2_resources[] = {
> + {
> + .name = "mbox_peer",
> + .start = U5500_MBOX2_PEER_START,
> + .end = U5500_MBOX2_PEER_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_local",
> + .start = U5500_MBOX2_LOCAL_START,
> + .end = U5500_MBOX2_LOCAL_END,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .name = "mbox_irq",
> + .start = MBOX_PAIR2_VIRT_IRQ,
> + .end = MBOX_PAIR2_VIRT_IRQ,
> + .flags = IORESOURCE_IRQ,
> + }
> +};
> +
> +static struct platform_device mbox0_device = {
> + .id = 0,
> + .name = "mbox",
> + .resource = mbox0_resources,
> + .num_resources = ARRAY_SIZE(mbox0_resources),
> +};
> +
> +static struct platform_device mbox1_device = {
> + .id = 1,
> + .name = "mbox",
> + .resource = mbox1_resources,
> + .num_resources = ARRAY_SIZE(mbox1_resources),
> +};
> +
> +static struct platform_device mbox2_device = {
> + .id = 2,
> + .name = "mbox",
> + .resource = mbox2_resources,
> + .num_resources = ARRAY_SIZE(mbox2_resources),
> +};
> +
> static struct platform_device *u5500_platform_devs[] __initdata = {
> &u5500_gpio_devs[0],
> &u5500_gpio_devs[1],
> @@ -33,6 +118,9 @@ static struct platform_device *u5500_platform_devs[] __initdata = {
> &u5500_gpio_devs[5],
> &u5500_gpio_devs[6],
> &u5500_gpio_devs[7],
> + &mbox0_device,
> + &mbox1_device,
> + &mbox2_device,
> };
>
> void __init u5500_map_io(void)
> diff --git a/arch/arm/mach-ux500/include/mach/db5500-regs.h b/arch/arm/mach-ux500/include/mach/db5500-regs.h
> index 545c80f..3eafc0e 100644
> --- a/arch/arm/mach-ux500/include/mach/db5500-regs.h
> +++ b/arch/arm/mach-ux500/include/mach/db5500-regs.h
> @@ -100,4 +100,18 @@
> #define U5500_GPIOBANK6_BASE (U5500_GPIO4_BASE + 0x80)
> #define U5500_GPIOBANK7_BASE (U5500_GPIO4_BASE + 0x100)
>
> +#define U5500_MBOX_BASE (U5500_MODEM_BASE + 0xFFD1000)
> +#define U5500_MBOX0_PEER_START (U5500_MBOX_BASE + 0x40)
> +#define U5500_MBOX0_PEER_END (U5500_MBOX_BASE + 0x5F)
> +#define U5500_MBOX0_LOCAL_START (U5500_MBOX_BASE + 0x60)
> +#define U5500_MBOX0_LOCAL_END (U5500_MBOX_BASE + 0x7F)
> +#define U5500_MBOX1_PEER_START (U5500_MBOX_BASE + 0x80)
> +#define U5500_MBOX1_PEER_END (U5500_MBOX_BASE + 0x9F)
> +#define U5500_MBOX1_LOCAL_START (U5500_MBOX_BASE + 0xA0)
> +#define U5500_MBOX1_LOCAL_END (U5500_MBOX_BASE + 0xBF)
> +#define U5500_MBOX2_PEER_START (U5500_MBOX_BASE + 0x00)
> +#define U5500_MBOX2_PEER_END (U5500_MBOX_BASE + 0x1F)
> +#define U5500_MBOX2_LOCAL_START (U5500_MBOX_BASE + 0x20)
> +#define U5500_MBOX2_LOCAL_END (U5500_MBOX_BASE + 0x3F)
> +
> #endif
> diff --git a/arch/arm/mach-ux500/include/mach/irqs-db5500.h b/arch/arm/mach-ux500/include/mach/irqs-db5500.h
> index 6fbfe5e..bfa123d 100644
> --- a/arch/arm/mach-ux500/include/mach/irqs-db5500.h
> +++ b/arch/arm/mach-ux500/include/mach/irqs-db5500.h
> @@ -61,6 +61,7 @@
> #define IRQ_DB5500_SDMMC0 (IRQ_SHPI_START + 60)
> #define IRQ_DB5500_HSEM (IRQ_SHPI_START + 61)
> #define IRQ_DB5500_SBAG (IRQ_SHPI_START + 63)
> +#define IRQ_DB5500_MODEM (IRQ_SHPI_START + 65)
> #define IRQ_DB5500_SPI1 (IRQ_SHPI_START + 96)
> #define IRQ_DB5500_MSP2 (IRQ_SHPI_START + 98)
> #define IRQ_DB5500_SRPTIMER (IRQ_SHPI_START + 101)
> diff --git a/arch/arm/mach-ux500/include/mach/irqs.h b/arch/arm/mach-ux500/include/mach/irqs.h
> index 0d552d9..693aa57 100644
> --- a/arch/arm/mach-ux500/include/mach/irqs.h
> +++ b/arch/arm/mach-ux500/include/mach/irqs.h
> @@ -84,6 +84,19 @@
> #include<mach/irqs-board-mop500.h>
> #endif
>
> -#define NR_IRQS IRQ_BOARD_END
> +/*
> + * After the board specific IRQ:s we reserve a range of IRQ:s in which virtual
> + * IRQ:s representing modem IRQ:s can be allocated
> + */
> +#define IRQ_MODEM_EVENTS_BASE (IRQ_BOARD_END + 1)
> +#define IRQ_MODEM_EVENTS_NBR 72
> +#define IRQ_MODEM_EVENTS_END (IRQ_MODEM_EVENTS_BASE + IRQ_MODEM_EVENTS_NBR)
> +
> +/* List of virtual IRQ:s that are allocated from the range above */
> +#define MBOX_PAIR0_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 43)
> +#define MBOX_PAIR1_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 45)
> +#define MBOX_PAIR2_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 41)
> +
> +#define NR_IRQS IRQ_MODEM_EVENTS_END
>
> #endif /* ASM_ARCH_IRQS_H */
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