armv8/fsl-lsch3: Add support to load and start MC Firmware

Adding support to load and start the Layerscape Management Complex (MC)
firmware. First, the MC GCR register is set to 0 to reset all cores. MC
firmware and DPL images are copied from their location in NOR flash to
DDR. MC registers are updated with the location of these images.
Deasserting the reset bit of MC GCR register releases core 0 to run.
Core 1 will be released by MC firmware. Stop bits are not touched for
this step. U-boot waits for MC until it boots up. In case of a failure,
device tree is updated accordingly. The MC firmware image uses FIT format.

Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com>

2 files changed, 70 insertions, 3 deletions

diff --git a/include/fdt_support.h b/include/fdt_support.h
index 21d7b44..fd44d7e 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -113,17 +113,25 @@ static inline int fdt_status_disabled(void *fdt, int nodeoffset)
 {
 	return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0);
 }
+static inline int fdt_status_fail(void *fdt, int nodeoffset)
+{
+	return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0);
+}
 
-int fdt_set_status_by_alias(void *fdt, const char* alias,
+int fdt_set_status_by_alias(void *fdt, const char *alias,
 			    enum fdt_status status, unsigned int error_code);
-static inline int fdt_status_okay_by_alias(void *fdt, const char* alias)
+static inline int fdt_status_okay_by_alias(void *fdt, const char *alias)
 {
 	return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0);
 }
-static inline int fdt_status_disabled_by_alias(void *fdt, const char* alias)
+static inline int fdt_status_disabled_by_alias(void *fdt, const char *alias)
 {
 	return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0);
 }
+static inline int fdt_status_fail_by_alias(void *fdt, const char *alias)
+{
+	return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL, 0);
+}
 
 #endif /* ifdef CONFIG_OF_LIBFDT */
 
diff --git a/include/fsl_mc.h b/include/fsl_mc.h
new file mode 100644
index 0000000..b9f089e
--- /dev/null
+++ b/include/fsl_mc.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __FSL_MC_H__
+#define __FSL_MC_H__
+
+#include <common.h>
+
+#define MC_CCSR_BASE_ADDR \
+	((struct mc_ccsr_registers __iomem *)0x8340000)
+
+#define BIT(x)			(1 << (x))
+#define GCR1_P1_STOP		BIT(31)
+#define GCR1_P2_STOP		BIT(30)
+#define GCR1_P1_DE_RST		BIT(23)
+#define GCR1_P2_DE_RST		BIT(22)
+#define GCR1_M1_DE_RST		BIT(15)
+#define GCR1_M2_DE_RST		BIT(14)
+#define GCR1_M_ALL_DE_RST	(GCR1_M1_DE_RST | GCR1_M2_DE_RST)
+#define GSR_FS_MASK		0x3fffffff
+#define MCFAPR_PL_MASK		(0x1 << 18)
+#define MCFAPR_BMT_MASK		(0x1 << 17)
+#define MCFAPR_BYPASS_ICID_MASK	\
+	(MCFAPR_PL_MASK | MCFAPR_BMT_MASK)
+
+#define SOC_MC_PORTALS_BASE_ADDR    ((void __iomem *)0x00080C000000)
+#define SOC_MC_PORTAL_STRIDE	    0x10000
+
+#define SOC_MC_PORTAL_ADDR(_portal_id) \
+	((void __iomem *)((uintptr_t)SOC_MC_PORTALS_BASE_ADDR + \
+	 (_portal_id) * SOC_MC_PORTAL_STRIDE))
+
+struct mc_ccsr_registers {
+	u32 reg_gcr1;
+	u32 reserved1;
+	u32 reg_gsr;
+	u32 reserved2;
+	u32 reg_sicbalr;
+	u32 reg_sicbahr;
+	u32 reg_sicapr;
+	u32 reserved3;
+	u32 reg_mcfbalr;
+	u32 reg_mcfbahr;
+	u32 reg_mcfapr;
+	u32 reserved4[0x2f1];
+	u32 reg_psr;
+	u32 reserved5;
+	u32 reg_brr[2];
+	u32 reserved6[0x80];
+	u32 reg_error[];
+};
+
+int mc_init(bd_t *bis);
+
+int get_mc_boot_status(void);
+#endif