armv8: fsl-layerscape: Add support of QorIQ LS1012A SoC

The QorIQ LS1012A processor, optimized for battery-backed or
USB-powered, integrates a single ARM Cortex-A53 core with a hardware
packet forwarding engine and high-speed interfaces to deliver
line-rate networking performance.

This patch add support of LS1012A SoC along with
 - Update platform & DDR clock read logic as per SVR
 - Define MMDC controller register set.
 - Update LUT base address for PCIe
 - Avoid L3 platform cache compilation
 - Update USB address, errata
 - SerDes table
 - Added CSU IDs for SDHC2, SAI-1 to SAI-4

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Makarand Pawagi <makarand.pawagi@mindspeed.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv8/fsl-layerscape/Makefile

@@ -28,3 +28,7 @@ endif
 ifneq ($(CONFIG_LS1043A),)
 obj-$(CONFIG_SYS_HAS_SERDES) += ls1043a_serdes.o
 endif
+
+ifneq ($(CONFIG_LS1012A),)
+obj-$(CONFIG_SYS_HAS_SERDES) += ls1012a_serdes.o
+endif

arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc

@@ -2,6 +2,7 @@ SoC overview
 
 	1. LS1043A
 	2. LS2080A
+	3. LS1012A
 
 LS1043A
 ---------
@@ -84,3 +85,45 @@ The LS2080A SoC includes the following function and features:
  - QorIQ platform's trust architecture 3.0
  - Service processor (SP) provides pre-boot initialization and secure-boot
   capabilities
+
+LS1012A
+--------
+The LS1012A features an advanced 64-bit ARM v8 Cortex-
+A53 processor, with 32 KB of parity protected L1-I cache,
+32 KB of ECC protected L1-D cache, as well as 256 KB of
+ECC protected L2 cache.
+
+The LS1012A SoC includes the following function and features:
+ - One 64-bit ARM v8 Cortex-A53 core with the following capabilities:
+ - ARM v8 cryptography extensions
+ - One 16-bit DDR3L SDRAM memory controller, Up to 1.0 GT/s, Supports
+    16-/8-bit operation (no ECC support)
+ - ARM core-link CCI-400 cache coherent interconnect
+ - Packet Forwarding Engine (PFE)
+ - Cryptography acceleration (SEC)
+ - Ethernet interfaces supported by PFE:
+ - One Configurable x3 SerDes:
+    Two Serdes PLLs supported for usage by any SerDes data lane
+    Support for up to 6 GBaud operation
+ - High-speed peripheral interfaces:
+     - One PCI Express Gen2 controller, supporting x1 operation
+     - One serial ATA (SATA Gen 3.0) controller
+     - One USB 3.0/2.0 controller with integrated PHY
+     - One USB 2.0 controller with ULPI interface. .
+ - Additional peripheral interfaces:
+    - One quad serial peripheral interface (QuadSPI) controller
+    - One serial peripheral interface (SPI) controller
+    - Two enhanced secure digital host controllers
+    - Two I2C controllers
+    - One 16550 compliant DUART (two UART interfaces)
+    - Two general purpose IOs (GPIO)
+    - Two FlexTimers
+    - Five synchronous audio interfaces (SAI)
+    - Pre-boot loader (PBL) provides pre-boot initialization and RCW loading
+    - Single-source clocking solution enabling generation of core, platform,
+    DDR, SerDes, and USB clocks from a single external crystal and internal
+    crystaloscillator
+    - Thermal monitor unit (TMU) with +/- 3C accuracy
+    - Two WatchDog timers
+    - ARM generic timer
+ - QorIQ platform's trust architecture 2.1

arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c

@@ -59,12 +59,18 @@ void get_sys_info(struct sys_info *sys_info)
 	sys_info->freq_ddrbus = sysclk;
 #endif
 
+#ifdef CONFIG_LS1012A
+	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
+			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
+			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
+#else
 	sys_info->freq_systembus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
 	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_MASK;
+#endif
 
 	for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) {
 		ratio[i] = (in_be32(&clk->pllcgsr[i].pllcngsr) >> 1) & 0xff;
@@ -83,6 +89,11 @@ void get_sys_info(struct sys_info *sys_info)
 			freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel];
 	}
 
+#ifdef CONFIG_LS1012A
+	sys_info->freq_systembus = sys_info->freq_ddrbus / 2;
+	sys_info->freq_ddrbus *= 2;
+#endif
+
 #define HWA_CGA_M1_CLK_SEL	0xe0000000
 #define HWA_CGA_M1_CLK_SHIFT	29
 #ifdef CONFIG_SYS_DPAA_FMAN

arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S

@@ -183,6 +183,7 @@ ENTRY(lowlevel_init)
 	ret
 ENDPROC(lowlevel_init)
 
+#ifdef CONFIG_FSL_LSCH3
 hnf_pstate_poll:
 	/* x0 has the desired status, return 0 for success, 1 for timeout
 	 * clobber x1, x2, x3, x4, x6, x7
@@ -260,6 +261,7 @@ ENTRY(__asm_flush_l3_cache)
 	mov	lr, x29
 	ret
 ENDPROC(__asm_flush_l3_cache)
+#endif
 
 #ifdef CONFIG_MP
 	/* Keep literals not used by the secondary boot code outside it */

arch/arm/cpu/armv8/fsl-layerscape/ls1012a_serdes.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/fsl_serdes.h>
+#include <asm/arch/immap_lsch2.h>
+
+struct serdes_config {
+	u32 protocol;
+	u8 lanes[SRDS_MAX_LANES];
+};
+
+static struct serdes_config serdes1_cfg_tbl[] = {
+	{0x2208, {SGMII_2500_FM1_DTSEC1, SGMII_2500_FM1_DTSEC2, NONE, SATA1} },
+	{0x0008, {NONE, NONE, NONE, SATA1} },
+	{0x3508, {SGMII_FM1_DTSEC1, PCIE1, NONE, SATA1} },
+	{0x3305, {SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{0x2205, {SGMII_2500_FM1_DTSEC1, SGMII_2500_FM1_DTSEC2, NONE, PCIE1} },
+	{0x2305, {SGMII_2500_FM1_DTSEC1, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{0x9508, {TX_CLK, PCIE1, NONE, SATA1} },
+	{0x3905, {SGMII_FM1_DTSEC1, TX_CLK, NONE, PCIE1} },
+	{0x9305, {TX_CLK, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{}
+};
+
+static struct serdes_config *serdes_cfg_tbl[] = {
+	serdes1_cfg_tbl,
+};
+
+enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane)
+{
+	struct serdes_config *ptr;
+
+	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
+		return 0;
+
+	ptr = serdes_cfg_tbl[serdes];
+	while (ptr->protocol) {
+		if (ptr->protocol == cfg)
+			return ptr->lanes[lane];
+		ptr++;
+	}
+
+	return 0;
+}
+
+int is_serdes_prtcl_valid(int serdes, u32 prtcl)
+{
+	int i;
+	struct serdes_config *ptr;
+
+	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
+		return 0;
+
+	ptr = serdes_cfg_tbl[serdes];
+	while (ptr->protocol) {
+		if (ptr->protocol == prtcl)
+			break;
+		ptr++;
+	}
+
+	if (!ptr->protocol)
+		return 0;
+
+	for (i = 0; i < SRDS_MAX_LANES; i++) {
+		if (ptr->lanes[i] != NONE)
+			return 1;
+	}
+
+	return 0;
+}

arch/arm/cpu/armv8/fsl-layerscape/soc.c

@@ -12,8 +12,10 @@
 #include <asm/io.h>
 #include <asm/global_data.h>
 #include <asm/arch-fsl-layerscape/config.h>
+#ifdef CONFIG_SYS_FSL_DDR
 #include <fsl_ddr_sdram.h>
 #include <fsl_ddr.h>
+#endif
 #ifdef CONFIG_CHAIN_OF_TRUST
 #include <fsl_validate.h>
 #endif