imx: imx-common: introduce Resource Domain Controller support

Introduce Resource Domain Controller support for i.MX.
Now i.MX6SX and i.MX7D supports this feature to assign masters
and peripherals to different domains.

Signed-off-by: Ye.Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/arch/arm/include/asm/imx-common/rdc-sema.h b/arch/arm/include/asm/imx-common/rdc-sema.h
new file mode 100644
index 0000000000..2c61e56126
--- /dev/null
+++ b/arch/arm/include/asm/imx-common/rdc-sema.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:  GPL-2.0+
+ */
+
+#ifndef __RDC_SEMA_H__
+#define __RDC_SEMA_H__
+
+/*
+ * rdc_peri_cfg_t and rdc_ma_cft_t use the same layout.
+ *
+ *   [ 23 22 | 21 20 | 19 18 | 17 16 ] | [ 15 - 8 ] | [ 7 - 0 ]
+ *      d3      d2      d1       d0    | master id  |  peri id
+ *   d[x] means domain[x], x can be [3 - 0].
+ */
+typedef u32 rdc_peri_cfg_t;
+typedef u32 rdc_ma_cfg_t;
+
+#define RDC_PERI_SHIFT		0
+#define RDC_PERI_MASK		0xFF
+
+#define RDC_DOMAIN_SHIFT_BASE	16
+#define RDC_DOMAIN_MASK		0xFF0000
+#define RDC_DOMAIN_SHIFT(x)	(RDC_DOMAIN_SHIFT_BASE + ((x << 1)))
+#define RDC_DOMAIN(x)		((rdc_peri_cfg_t)(0x3 << RDC_DOMAIN_SHIFT(x)))
+
+#define RDC_MASTER_SHIFT	8
+#define RDC_MASTER_MASK		0xFF00
+#define RDC_MASTER_CFG(master_id, domain_id) (rdc_ma_cfg_t)((master_id << 8) | \
+					(domain_id << RDC_DOMAIN_SHIFT_BASE))
+
+/* The Following macro definitions are common to i.MX6SX and i.MX7D */
+#define SEMA_GATES_NUM		64
+
+#define RDC_MDA_DID_SHIFT	0
+#define RDC_MDA_DID_MASK	(0x3 << RDC_MDA_DID_SHIFT)
+#define RDC_MDA_LCK_SHIFT	31
+#define RDC_MDA_LCK_MASK	(0x1 << RDC_MDA_LCK_SHIFT)
+
+#define RDC_PDAP_DW_SHIFT(domain)	((domain) << 1)
+#define RDC_PDAP_DR_SHIFT(domain)	(1 + RDC_PDAP_DW_SHIFT(domain))
+#define RDC_PDAP_DW_MASK(domain)	(1 << RDC_PDAP_DW_SHIFT(domain))
+#define RDC_PDAP_DR_MASK(domain)	(1 << RDC_PDAP_DR_SHIFT(domain))
+#define RDC_PDAP_DRW_MASK(domain)	(RDC_PDAP_DW_MASK(domain) | \
+					 RDC_PDAP_DR_MASK(domain))
+
+#define RDC_PDAP_SREQ_SHIFT	30
+#define RDC_PDAP_SREQ_MASK	(0x1 << RDC_PDAP_SREQ_SHIFT)
+#define RDC_PDAP_LCK_SHIFT	31
+#define RDC_PDAP_LCK_MASK	(0x1 << RDC_PDAP_LCK_SHIFT)
+
+#define RDC_MRSA_SADR_SHIFT	7
+#define RDC_MRSA_SADR_MASK	(0x1ffffff << RDC_MRSA_SADR_SHIFT)
+
+#define RDC_MREA_EADR_SHIFT	7
+#define RDC_MREA_EADR_MASK	(0x1ffffff << RDC_MREA_EADR_SHIFT)
+
+#define RDC_MRC_DW_SHIFT(domain)	(domain)
+#define RDC_MRC_DR_SHIFT(domain)	(1 + RDC_MRC_DW_SHIFT(domain))
+#define RDC_MRC_DW_MASK(domain)		(1 << RDC_MRC_DW_SHIFT(domain))
+#define RDC_MRC_DR_MASK(domain)		(1 << RDC_MRC_DR_SHIFT(domain))
+#define RDC_MRC_DRW_MASK(domain)	(RDC_MRC_DW_MASK(domain) | \
+					 RDC_MRC_DR_MASK(domain))
+#define RDC_MRC_ENA_SHIFT	30
+#define RDC_MRC_ENA_MASK	(0x1 << RDC_MRC_ENA_SHIFT)
+#define RDC_MRC_LCK_SHIFT	31
+#define RDC_MRC_LCK_MASK	(0x1 << RDC_MRC_LCK_SHIFT)
+
+#define RDC_MRVS_VDID_SHIFT	0
+#define RDC_MRVS_VDID_MASK	(0x3 << RDC_MRVS_VDID_SHIFT)
+#define RDC_MRVS_AD_SHIFT	4
+#define RDC_MRVS_AD_MASK	(0x1 << RDC_MRVS_AD_SHIFT)
+#define RDC_MRVS_VADDR_SHIFT	5
+#define RDC_MRVS_VADDR_MASK	(0x7ffffff << RDC_MRVS_VADDR_SHIFT)
+
+#define RDC_SEMA_GATE_GTFSM_SHIFT	0
+#define RDC_SEMA_GATE_GTFSM_MASK	(0xf << RDC_SEMA_GATE_GTFSM_SHIFT)
+#define RDC_SEMA_GATE_LDOM_SHIFT	5
+#define RDC_SEMA_GATE_LDOM_MASK		(0x3 << RDC_SEMA_GATE_LDOM_SHIFT)
+
+#define RDC_SEMA_RSTGT_RSTGDP_SHIFT	0
+#define RDC_SEMA_RSTGT_RSTGDP_MASK	(0xff << RDC_SEMA_RSTGT_RSTGDP_SHIFT)
+#define RDC_SEMA_RSTGT_RSTGSM_SHIFT	2
+#define RDC_SEMA_RSTGT_RSTGSM_MASK	(0x3 << RDC_SEMA_RSTGT_RSTGSM_SHIFT)
+#define RDC_SEMA_RSTGT_RSTGMS_SHIFT	4
+#define RDC_SEMA_RSTGT_RSTGMS_MASK	(0xf << RDC_SEMA_RSTGT_RSTGMS_SHIFT)
+#define RDC_SEMA_RSTGT_RSTGTN_SHIFT	8
+#define RDC_SEMA_RSTGT_RSTGTN_MASK	(0xff << RDC_SEMA_RSTGT_RSTGTN_SHIFT)
+
+int imx_rdc_check_permission(int per_id, int dom_id);
+int imx_rdc_sema_lock(int per_id);
+int imx_rdc_sema_unlock(int per_id);
+int imx_rdc_setup_peri(rdc_peri_cfg_t p);
+int imx_rdc_setup_peripherals(rdc_peri_cfg_t const *peripherals_list,
+			      unsigned count);
+int imx_rdc_setup_ma(rdc_ma_cfg_t p);
+int imx_rdc_setup_masters(rdc_ma_cfg_t const *masters_list, unsigned count);
+
+#endif	/* __RDC_SEMA_H__*/