ARMv8/FSL_LSCH3: Add FSL_LSCH3 SoC

Freescale LayerScape with Chassis Generation 3 is a set of SoCs with
ARMv8 cores and 3rd generation of Chassis. We use different MMU setup
to support memory map and cache attribute for these SoCs. MMU and cache
are enabled very early to bootst performance, especially for early
development on emulators. After u-boot relocates to DDR, a new MMU
table with QBMan cache access is created in DDR. SMMU pagesize is set
in SMMU_sACR register. Both DDR3 and DDR4 are supported.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>

7 files changed, 232 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-fsl-lsch3/clock.h b/arch/arm/include/asm/arch-fsl-lsch3/clock.h
new file mode 100644
index 0000000..831af0b
--- /dev/null
+++ b/arch/arm/include/asm/arch-fsl-lsch3/clock.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#ifndef __ASM_ARCH_FSL_LSCH3_CLOCK_H_
+#define __ASM_ARCH_FSL_LSCH3_CLOCK_H_
+
+#include <common.h>
+
+enum mxc_clock {
+	MXC_ARM_CLK = 0,
+	MXC_BUS_CLK,
+	MXC_UART_CLK,
+	MXC_ESDHC_CLK,
+	MXC_I2C_CLK,
+};
+
+unsigned int mxc_get_clock(enum mxc_clock clk);
+
+#endif /* __ASM_ARCH_FSL_LSCH3_CLOCK_H_ */
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/config.h b/arch/arm/include/asm/arch-fsl-lsch3/config.h
new file mode 100644
index 0000000..c987a19
--- /dev/null
+++ b/arch/arm/include/asm/arch-fsl-lsch3/config.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2014, Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARMV8_FSL_LSCH3_CONFIG_
+#define _ASM_ARMV8_FSL_LSCH3_CONFIG_
+
+#include <fsl_ddrc_version.h>
+
+#define CONFIG_SYS_FSL_OCRAM_BASE	0x18000000	/* initial RAM */
+/* Link Definitions */
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_FSL_OCRAM_BASE + 0xfff0)
+
+#define CONFIG_SYS_IMMR				0x01000000
+#define CONFIG_SYS_FSL_DDR_ADDR			(CONFIG_SYS_IMMR + 0x00080000)
+#define CONFIG_SYS_FSL_DDR2_ADDR		(CONFIG_SYS_IMMR + 0x00090000)
+#define CONFIG_SYS_FSL_GUTS_ADDR		(CONFIG_SYS_IMMR + 0x00E00000)
+#define CONFIG_SYS_FSL_PMU_ADDR			(CONFIG_SYS_IMMR + 0x00E30000)
+#define CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR	(CONFIG_SYS_IMMR + 0x00300000)
+#define CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR	(CONFIG_SYS_IMMR + 0x00310000)
+#define CONFIG_SYS_FSL_CH3_CLK_CTRL_ADDR	(CONFIG_SYS_IMMR + 0x00370000)
+#define CONFIG_SYS_IFC_ADDR			(CONFIG_SYS_IMMR + 0x01240000)
+#define CONFIG_SYS_NS16550_COM1			(CONFIG_SYS_IMMR + 0x011C0500)
+#define CONFIG_SYS_NS16550_COM2			(CONFIG_SYS_IMMR + 0x011C0600)
+#define CONFIG_SYS_FSL_TIMER_ADDR		0x023d0000
+#define CONFIG_SYS_FSL_PMU_CLTBENR		(CONFIG_SYS_FSL_PMU_ADDR + \
+						 0x18A0)
+
+#define I2C1_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01000000)
+#define I2C2_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01010000)
+#define I2C3_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01020000)
+#define I2C4_BASE_ADDR				(CONFIG_SYS_IMMR + 0x01030000)
+
+/* Generic Interrupt Controller Definitions */
+#define GICD_BASE		0x06000000
+#define GICR_BASE		0x06100000
+
+/* SMMU Defintions */
+#define SMMU_BASE		0x05000000 /* GR0 Base */
+
+/* DDR */
+#define CONFIG_SYS_FSL_DDR_LE
+#define CONFIG_VERY_BIG_RAM
+#define CONFIG_SYS_FSL_DDRC_ARM_GEN3	/* Enable Freescale ARM DDR3 driver */
+#define CONFIG_SYS_FSL_DDR		/* Freescale DDR driver */
+#define CONFIG_SYS_LS2_DDR_BLOCK1_SIZE	((phys_size_t)2 << 30)
+#define CONFIG_MAX_MEM_MAPPED		CONFIG_SYS_LS2_DDR_BLOCK1_SIZE
+#define CONFIG_SYS_FSL_DDR_VER		FSL_DDR_VER_5_0
+
+
+/* IFC */
+#define CONFIG_SYS_FSL_IFC_LE
+
+#ifdef CONFIG_LS2100A
+#define CONFIG_MAX_CPUS				16
+#define CONFIG_SYS_FSL_IFC_BANK_COUNT		8
+#define CONFIG_NUM_DDR_CONTROLLERS		2
+#define CONFIG_SYS_FSL_CLUSTER_CLOCKS		{ 1, 1, 4, 4 }
+#else
+#error SoC not defined
+#endif
+
+#endif /* _ASM_ARMV8_FSL_LSCH3_CONFIG_ */
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/gpio.h b/arch/arm/include/asm/arch-fsl-lsch3/gpio.h
new file mode 100644
index 0000000..f23a78c
--- /dev/null
+++ b/arch/arm/include/asm/arch-fsl-lsch3/gpio.h
@@ -0,0 +1,9 @@
+/*
+ * Copyright 2014, Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARMV8_FSL_LSCH3_GPIO_H_
+#define _ASM_ARMV8_FSL_LSCH3_GPIO_H_
+#endif	/* _ASM_ARMV8_FSL_LSCH3_GPIO_H_ */
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h
new file mode 100644
index 0000000..18e66bd
--- /dev/null
+++ b/arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h
@@ -0,0 +1,116 @@
+/*
+ * LayerScape Internal Memory Map
+ *
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ARCH_FSL_LSCH3_IMMAP_H
+#define __ARCH_FSL_LSCH3_IMMAP_H_
+
+/* This is chassis generation 3 */
+
+struct sys_info {
+	unsigned long freq_processor[CONFIG_MAX_CPUS];
+	unsigned long freq_systembus;
+	unsigned long freq_ddrbus;
+	unsigned long freq_localbus;
+	unsigned long freq_qe;
+#ifdef CONFIG_SYS_DPAA_FMAN
+	unsigned long freq_fman[CONFIG_SYS_NUM_FMAN];
+#endif
+#ifdef CONFIG_SYS_DPAA_QBMAN
+	unsigned long freq_qman;
+#endif
+#ifdef CONFIG_SYS_DPAA_PME
+	unsigned long freq_pme;
+#endif
+};
+
+/* Global Utilities Block */
+struct ccsr_gur {
+	u32	porsr1;		/* POR status 1 */
+	u32	porsr2;		/* POR status 2 */
+	u8	res_008[0x20-0x8];
+	u32	gpporcr1;	/* General-purpose POR configuration */
+	u32	gpporcr2;	/* General-purpose POR configuration 2 */
+	u32	dcfg_fusesr;	/* Fuse status register */
+	u32	gpporcr3;
+	u32	gpporcr4;
+	u8	res_034[0x70-0x34];
+	u32	devdisr;	/* Device disable control */
+	u32	devdisr2;	/* Device disable control 2 */
+	u32	devdisr3;	/* Device disable control 3 */
+	u32	devdisr4;	/* Device disable control 4 */
+	u32	devdisr5;	/* Device disable control 5 */
+	u32	devdisr6;	/* Device disable control 6 */
+	u32	devdisr7;	/* Device disable control 7 */
+	u8	res_08c[0x90-0x8c];
+	u32	coredisru;	/* uppper portion for support of 64 cores */
+	u32	coredisrl;	/* lower portion for support of 64 cores */
+	u8	res_098[0xa0-0x98];
+	u32	pvr;		/* Processor version */
+	u32	svr;		/* System version */
+	u32	mvr;		/* Manufacturing version */
+	u8	res_0ac[0x100-0xac];
+	u32	rcwsr[32];	/* Reset control word status */
+
+#define FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_SHIFT	2
+#define FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_MASK	0x1f
+#define FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT	10
+#define FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK	0x3f
+	u8	res_180[0x200-0x180];
+	u32	scratchrw[32];	/* Scratch Read/Write */
+	u8	res_280[0x300-0x280];
+	u32	scratchw1r[4];	/* Scratch Read (Write once) */
+	u8	res_310[0x400-0x310];
+	u32	bootlocptrl;	/* Boot location pointer low-order addr */
+	u32	bootlocptrh;	/* Boot location pointer high-order addr */
+	u8	res_408[0x500-0x408];
+	u8	res_500[0x740-0x500];	/* add more registers when needed */
+	u32	tp_ityp[64];	/* Topology Initiator Type Register */
+	struct {
+		u32	upper;
+		u32	lower;
+	} tp_cluster[3];	/* Core Cluster n Topology Register */
+	u8	res_858[0x1000-0x858];
+};
+
+#define TP_ITYP_AV		0x00000001	/* Initiator available */
+#define TP_ITYP_TYPE(x)	(((x) & 0x6) >> 1)	/* Initiator Type */
+#define TP_ITYP_TYPE_ARM	0x0
+#define TP_ITYP_TYPE_PPC	0x1		/* PowerPC */
+#define TP_ITYP_TYPE_OTHER	0x2		/* StarCore DSP */
+#define TP_ITYP_TYPE_HA		0x3		/* HW Accelerator */
+#define TP_ITYP_THDS(x)	(((x) & 0x18) >> 3)	/* # threads */
+#define TP_ITYP_VER(x)	(((x) & 0xe0) >> 5)	/* Initiator Version */
+#define TY_ITYP_VER_A7		0x1
+#define TY_ITYP_VER_A53		0x2
+#define TY_ITYP_VER_A57		0x3
+
+#define TP_CLUSTER_EOC		0x80000000	/* end of clusters */
+#define TP_CLUSTER_INIT_MASK	0x0000003f	/* initiator mask */
+#define TP_INIT_PER_CLUSTER     4
+
+struct ccsr_clk_cluster_group {
+	struct {
+		u8	res_00[0x10];
+		u32	csr;
+		u8	res_14[0x20-0x14];
+	} hwncsr[3];
+	u8	res_60[0x80-0x60];
+	struct {
+		u32	gsr;
+		u8	res_84[0xa0-0x84];
+	} pllngsr[3];
+	u8	res_e0[0x100-0xe0];
+};
+
+struct ccsr_clk_ctrl {
+	struct {
+		u32 csr;	/* core cluster n clock control status */
+		u8  res_04[0x20-0x04];
+	} clkcncsr[8];
+};
+#endif /* __ARCH_FSL_LSCH3_IMMAP_H */
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h b/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h
new file mode 100644
index 0000000..8f00535
--- /dev/null
+++ b/arch/arm/include/asm/arch-fsl-lsch3/imx-regs.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#ifndef __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_
+#define __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_
+
+#define I2C_QUIRK_REG	/* enable 8-bit driver */
+
+#endif /* __ASM_ARCH_FSL_LSCH3_IMX_REGS_H_ */
diff --git a/arch/arm/include/asm/config.h b/arch/arm/include/asm/config.h
index 2a20a77..d3433da 100644
--- a/arch/arm/include/asm/config.h
+++ b/arch/arm/include/asm/config.h
@@ -17,4 +17,8 @@
 #define CONFIG_STATIC_RELA
 #endif
 
+#ifdef CONFIG_FSL_LSCH3
+#include <asm/arch-fsl-lsch3/config.h>
+#endif
+
 #endif
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 74ee9a4..d51ba66 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -78,6 +78,8 @@ void gic_send_sgi(unsigned long sgino);
 void wait_for_wakeup(void);
 void smp_kick_all_cpus(void);
 
+void flush_l3_cache(void);
+
 #endif	/* __ASSEMBLY__ */
 
 #else /* CONFIG_ARM64 */