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powerpc/fsl-rio: add support for mapping inbound windows

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Add support for mapping and unmapping of inbound rapidio windows.  This
allows for drivers to open up a part of local memory on the rapidio
network.  Also applications can use this and tranfer blocks of data
over the network.

Signed-off-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
[scottwood@freescale.com: updated commit message based on review]
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Martijn de Gouw
2014-08-05 15:52:32 +02:00
committed by Scott Wood
parent e327fff47b
commit e6a546fd03
2 changed files with 117 additions and 0 deletions
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13
arch/powerpc/sysdev/fsl_rio.h
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@@ -50,9 +50,12 @@
#define RIO_S_DBELL_REGS_OFFSET 0x13400
#define RIO_S_PW_REGS_OFFSET 0x134e0
#define RIO_ATMU_REGS_DBELL_OFFSET 0x10C40
#define RIO_INB_ATMU_REGS_PORT1_OFFSET 0x10d60
#define RIO_INB_ATMU_REGS_PORT2_OFFSET 0x10f60
#define MAX_MSG_UNIT_NUM 2
#define MAX_PORT_NUM 4
#define RIO_INB_ATMU_COUNT 4
struct rio_atmu_regs {
u32 rowtar;
@@ -63,6 +66,15 @@ struct rio_atmu_regs {
u32 pad2[3];
};
struct rio_inb_atmu_regs {
u32 riwtar;
u32 pad1;
u32 riwbar;
u32 pad2;
u32 riwar;
u32 pad3[3];
};
struct rio_dbell_ring {
void *virt;
dma_addr_t phys;
@@ -99,6 +111,7 @@ struct rio_priv {
void __iomem *regs_win;
struct rio_atmu_regs __iomem *atmu_regs;
struct rio_atmu_regs __iomem *maint_atmu_regs;
struct rio_inb_atmu_regs __iomem *inb_atmu_regs;
void __iomem *maint_win;
void *rmm_handle; /* RapidIO message manager(unit) Handle */
};