feat(plat/allwinner): add R329 support

Allwinner R329 is a new dual-core Corte-A53 SoC. Add basical TF-A
support for it, to provide a PSCI implementation containing CPU
boot/shutdown and SoC reset.

Change-Id: I0fa37ee9b4a8e0e1137bf7cf7d614b6ca9624bfe
Signed-off-by: Icenowy Zheng <icenowy@sipeed.com>

plat/allwinner/common/include/sunxi_def.h

@@ -18,5 +18,6 @@
 #define SUNXI_SOC_H5			0x1718
 #define SUNXI_SOC_H6			0x1728
 #define SUNXI_SOC_H616			0x1823
+#define SUNXI_SOC_R329			0x1851
 
 #endif /* SUNXI_DEF_H */

plat/allwinner/common/sunxi_bl31_setup.c

@@ -128,6 +128,9 @@ void bl31_platform_setup(void)
 	case SUNXI_SOC_H616:
 		soc_name = "H616";
 		break;
+	case SUNXI_SOC_R329:
+		soc_name = "R329";
+		break;
 	default:
 		soc_name = "unknown";
 		break;

plat/allwinner/sun50i_r329/include/sunxi_ccu.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_CCU_H
+#define SUNXI_CCU_H
+
+#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0x0f00)
+
+#define SUNXI_R_PRCM_SEC_SWITCH_REG	(SUNXI_R_PRCM_BASE + 0x0290)
+
+#endif /* SUNXI_CCU_H */

plat/allwinner/sun50i_r329/include/sunxi_cpucfg.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_CPUCFG_H
+#define SUNXI_CPUCFG_H
+
+#include <sunxi_mmap.h>
+
+/* c = cluster, n = core */
+#define SUNXI_CPUCFG_CLS_CTRL_REG0(c)	(SUNXI_C0_CPUXCFG_BASE + 0x0010)
+#define SUNXI_CPUCFG_CLS_CTRL_REG1(c)	(SUNXI_C0_CPUXCFG_BASE + 0x0014)
+#define SUNXI_CPUCFG_CACHE_CFG_REG	(SUNXI_C0_CPUXCFG_BASE + 0x0024)
+#define SUNXI_CPUCFG_DBG_REG0		(SUNXI_C0_CPUXCFG_BASE + 0x00c0)
+
+#define SUNXI_CPUCFG_RST_CTRL_REG(c)	(SUNXI_C0_CPUXCFG_BASE + 0x0000)
+#define SUNXI_CPUCFG_GEN_CTRL_REG0(c)	(SUNXI_CPUCFG_BASE + 0x0000)
+#define SUNXI_CPUCFG_RVBAR_LO_REG(n)	(SUNXI_CPUCFG_BASE + 0x0040 + (n) * 8)
+#define SUNXI_CPUCFG_RVBAR_HI_REG(n)	(SUNXI_CPUCFG_BASE + 0x0044 + (n) * 8)
+
+#define SUNXI_POWERON_RST_REG(c)	(SUNXI_R_CPUCFG_BASE + 0x0040 + (c) * 4)
+#define SUNXI_POWEROFF_GATING_REG(c)	(SUNXI_R_CPUCFG_BASE + 0x0044 + (c) * 4)
+#define SUNXI_CPU_POWER_CLAMP_REG(c, n)	(SUNXI_R_CPUCFG_BASE + 0x0050 + \
+					(c) * 0x10 + (n) * 4)
+
+#define SUNXI_AA64nAA32_REG		SUNXI_CPUCFG_GEN_CTRL_REG0
+#define SUNXI_AA64nAA32_OFFSET		4
+
+#endif /* SUNXI_CPUCFG_H */

plat/allwinner/sun50i_r329/include/sunxi_mmap.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_MMAP_H
+#define SUNXI_MMAP_H
+
+/* Memory regions */
+#define SUNXI_ROM_BASE			0x00000000
+#define SUNXI_ROM_SIZE			0x00010000
+/*
+ * In fact all SRAM from 0x100000 is SRAM A2. However as it's too big for
+ * firmware, and the user manual gives a tip on a 2*64K/27*64K partition,
+ * only use the first 2*64K for firmwares now, with the SPL using the first
+ * 64K and BL3-1 using the second one.
+ *
+ * Only the used 2*64K SRAM is defined here, to prevent a gaint translation
+ * table to be generated.
+ */
+#define SUNXI_SRAM_BASE			0x00100000
+#define SUNXI_SRAM_SIZE			0x00020000
+#define SUNXI_SRAM_A1_BASE		0x00100000
+#define SUNXI_SRAM_A1_SIZE		0x00010000
+#define SUNXI_SRAM_A2_BASE		0x00110000
+#define SUNXI_SRAM_A2_BL31_OFFSET	0x00000000
+#define SUNXI_SRAM_A2_SIZE		0x00010000
+#define SUNXI_DEV_BASE			0x01000000
+#define SUNXI_DEV_SIZE			0x09000000
+#define SUNXI_DRAM_BASE			0x40000000
+#define SUNXI_DRAM_VIRT_BASE		0x0a000000
+
+/* Memory-mapped devices */
+#define SUNXI_WDOG_BASE			0x020000a0
+#define SUNXI_R_WDOG_BASE		SUNXI_WDOG_BASE
+#define SUNXI_PIO_BASE			0x02000400
+#define SUNXI_SPC_BASE			0x02000800
+#define SUNXI_CCU_BASE			0x02001000
+#define SUNXI_UART0_BASE		0x02500000
+#define SUNXI_SYSCON_BASE		0x03000000
+#define SUNXI_DMA_BASE			0x03002000
+#define SUNXI_SID_BASE			0x03006000
+#define SUNXI_GICD_BASE			0x03021000
+#define SUNXI_GICC_BASE			0x03022000
+#define SUNXI_SPI0_BASE			0x04025000
+#define SUNXI_R_CPUCFG_BASE		0x07000400
+#define SUNXI_R_PRCM_BASE		0x07010000
+#define SUNXI_R_PIO_BASE		0x07022000
+#define SUNXI_R_UART_BASE		0x07080000
+#define SUNXI_R_I2C_BASE		0x07081400
+#define SUNXI_CPUCFG_BASE		0x08100000
+#define SUNXI_C0_CPUXCFG_BASE		0x09010000
+
+#endif /* SUNXI_MMAP_H */

plat/allwinner/sun50i_r329/include/sunxi_spc.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_SPC_H
+#define SUNXI_SPC_H
+
+/* Get by REing stock ATF and checking initialization loop boundary */
+#define SUNXI_SPC_NUM_PORTS		11
+
+#define SUNXI_SPC_DECPORT_STA_REG(p)	(SUNXI_SPC_BASE + 0x0000 + 0x10 * (p))
+#define SUNXI_SPC_DECPORT_SET_REG(p)	(SUNXI_SPC_BASE + 0x0004 + 0x10 * (p))
+#define SUNXI_SPC_DECPORT_CLR_REG(p)	(SUNXI_SPC_BASE + 0x0008 + 0x10 * (p))
+
+#endif /* SUNXI_SPC_H */

plat/allwinner/sun50i_r329/platform.mk

@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2021 Sipeed
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Without a management processor there is no SCPI support.
+SUNXI_PSCI_USE_SCPI	:=	0
+SUNXI_PSCI_USE_NATIVE	:=	1
+
+# The differences between the platforms are covered by the include files.
+include plat/allwinner/common/allwinner-common.mk
+
+# the above could be overwritten on the command line
+ifeq (${SUNXI_PSCI_USE_SCPI}, 1)
+    $(error "R329 does not support SCPI PSCI ops")
+endif
+
+# Put NOBITS memory in the first 64K of SRAM A2, overwriting U-Boot's SPL.
+SEPARATE_NOBITS_REGION	:=	1

plat/allwinner/sun50i_r329/sunxi_power.c

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <sunxi_mmap.h>
+#include <sunxi_cpucfg.h>
+#include <sunxi_private.h>
+
+int sunxi_pmic_setup(uint16_t socid, const void *fdt)
+{
+	/* Currently known hardware has no PMIC */
+
+	return 0;
+}
+
+void sunxi_power_down(void)
+{
+}
+
+void sunxi_cpu_power_off_self(void)
+{
+	/* TODO: It's still unknown whether CPUIDLE exists on R329 */
+}