soc/qman: add dedicated channel ID for CAAM

Add and export the ID of the channel serviced by the
CAAM (Cryptographic Acceleration and Assurance Module) DCP.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/soc/fsl/qbman/qman_ccsr.c

@@ -34,6 +34,8 @@ u16 qman_ip_rev;
 EXPORT_SYMBOL(qman_ip_rev);
 u16 qm_channel_pool1 = QMAN_CHANNEL_POOL1;
 EXPORT_SYMBOL(qm_channel_pool1);
+u16 qm_channel_caam = QMAN_CHANNEL_CAAM;
+EXPORT_SYMBOL(qm_channel_caam);
 
 /* Register offsets */
 #define REG_QCSP_LIO_CFG(n)	(0x0000 + ((n) * 0x10))
@@ -720,8 +722,10 @@ static int fsl_qman_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	if ((qman_ip_rev & 0xff00) >= QMAN_REV30)
+	if ((qman_ip_rev & 0xff00) >= QMAN_REV30) {
 		qm_channel_pool1 = QMAN_CHANNEL_POOL1_REV3;
+		qm_channel_caam = QMAN_CHANNEL_CAAM_REV3;
+	}
 
 	ret = zero_priv_mem(dev, node, fqd_a, fqd_sz);
 	WARN_ON(ret);

include/soc/fsl/qman.h

@@ -36,8 +36,11 @@
 /* Hardware constants */
 #define QM_CHANNEL_SWPORTAL0 0
 #define QMAN_CHANNEL_POOL1 0x21
+#define QMAN_CHANNEL_CAAM 0x80
 #define QMAN_CHANNEL_POOL1_REV3 0x401
+#define QMAN_CHANNEL_CAAM_REV3 0x840
 extern u16 qm_channel_pool1;
+extern u16 qm_channel_caam;
 
 /* Portal processing (interrupt) sources */
 #define QM_PIRQ_CSCI	0x00100000	/* Congestion State Change */