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ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values.

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The patches provide an update of amba_device and matching code to handle
the additional registers required for the Class 0x9 (CoreSight) UCI.

The *data pointer in the amba_id is used by the driver to provide extended
ID register values for matching.

CoreSight components where PID/CID pair is currently sufficient for
unique identification need not provide this additional information.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Mike Leach
2019-02-13 14:41:50 +01:00
committed by Russell King
parent e85fa28ebc
commit 4a2910fa80
2 changed files with 43 additions and 8 deletions
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6
include/linux/amba/bus.h
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@@ -58,6 +58,10 @@ struct amba_cs_uci_id {
void *data;
};
/* define offsets for registers used by UCI */
#define UCI_REG_DEVTYPE_OFFSET 0xFCC
#define UCI_REG_DEVARCH_OFFSET 0xFBC
struct clk;
struct amba_device {
@@ -65,6 +69,8 @@ struct amba_device {
struct resource res;
struct clk *pclk;
unsigned int periphid;
unsigned int cid;
struct amba_cs_uci_id uci;
unsigned int irq[AMBA_NR_IRQS];
char *driver_override;
};