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-rw-r--r--arch/arm/include/asm/arch-sunxi/cpu_sun9i.h2
-rw-r--r--arch/arm/include/asm/arch-sunxi/gtbus.h21
-rw-r--r--arch/arm/include/asm/arch-sunxi/gtbus_sun9i.h92
-rw-r--r--arch/arm/mach-sunxi/Makefile2
-rw-r--r--arch/arm/mach-sunxi/clock.c6
-rw-r--r--arch/arm/mach-sunxi/gtbus_sun9i.c48
6 files changed, 170 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
index acbc94f..ba18a0f 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
@@ -23,6 +23,8 @@
#define SUNXI_NFC_BASE (REGS_AHB0_BASE + 0x3000)
#define SUNXI_TSC_BASE (REGS_AHB0_BASE + 0x4000)
+#define SUNXI_GTBUS_BASE (REGS_AHB0_BASE + 0x9000)
+
#define SUNXI_MMC0_BASE (REGS_AHB0_BASE + 0x0f000)
#define SUNXI_MMC1_BASE (REGS_AHB0_BASE + 0x10000)
#define SUNXI_MMC2_BASE (REGS_AHB0_BASE + 0x11000)
diff --git a/arch/arm/include/asm/arch-sunxi/gtbus.h b/arch/arm/include/asm/arch-sunxi/gtbus.h
new file mode 100644
index 0000000..b8308d5
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/gtbus.h
@@ -0,0 +1,21 @@
+/*
+ * GTBUS initialisation
+ *
+ * (C) Copyright 2016 Theobroma Systems Design und Consulting GmbH
+ * Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _SUNXI_GTBUS_H
+#define _SUNXI_GTBUS_H
+
+#if defined(CONFIG_MACH_SUN9I)
+#include <asm/arch/gtbus_sun9i.h>
+#endif
+
+#ifndef __ASSEMBLY__
+void gtbus_init(void);
+#endif
+
+#endif
diff --git a/arch/arm/include/asm/arch-sunxi/gtbus_sun9i.h b/arch/arm/include/asm/arch-sunxi/gtbus_sun9i.h
new file mode 100644
index 0000000..fd50826
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/gtbus_sun9i.h
@@ -0,0 +1,92 @@
+/*
+ * GTBUS initialisation for sun9i
+ *
+ * (C) Copyright 2016 Theobroma Systems Design und Consulting GmbH
+ * Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _SUNXI_GTBUS_SUN9I_H
+#define _SUNXI_GTBUS_SUN9I_H
+
+#include <linux/types.h>
+
+struct sunxi_gtbus_reg {
+ u32 mst_cfg[36]; /* 0x000 */
+ u8 reserved1[0x70]; /* 0x090 */
+ u32 bw_wdw_cfg; /* 0x100 */
+ u32 mst_read_prio_cfg[2]; /* 0x104 */
+ u32 lvl2_mst_cfg; /* 0x10c */
+ u32 sw_clk_on; /* 0x110 */
+ u32 sw_clk_off; /* 0x114 */
+ u32 pmu_mst_en; /* 0x118 */
+ u32 pmu_cfg; /* 0x11c */
+ u32 pmu_cnt[19]; /* 0x120 */
+ u32 reserved2[0x94]; /* 0x16c */
+ u32 cci400_config[3]; /* 0x200 */
+ u32 cci400_status[2]; /* 0x20c */
+};
+
+/* for register GT_MST_CFG_REG(n) */
+#define GT_ENABLE_REQ (1<<31) /* clock on */
+#define GT_DISABLE_REQ (1<<30) /* clock off */
+#define GT_QOS_SHIFT 28
+#define GT_THD1_SHIFT 16
+#define GT_REQN_MAX 0xf /* max no master requests in one cycle */
+#define GT_REQN_SHIFT 12
+#define GT_THD0_SHIFT 0
+
+#define GT_QOS_MAX 0x3
+#define GT_THD_MAX 0xfff
+#define GT_BW_WDW_MAX 0xffff
+
+/* mst_read_prio_cfg */
+#define GT_PRIO_LOW 0
+#define GT_PRIO_HIGH 1
+
+/* GTBUS port ids */
+#define GT_PORT_CPUM1 0
+#define GT_PORT_CPUM2 1
+#define GT_PORT_SATA 2
+#define GT_PORT_USB3 3
+#define GT_PORT_FE0 4
+#define GT_PORT_BE1 5
+#define GT_PORT_BE2 6
+#define GT_PORT_IEP0 7
+#define GT_PORT_FE1 8
+#define GT_PORT_BE0 9
+#define GT_PORT_FE2 10
+#define GT_PORT_IEP1 11
+#define GT_PORT_VED 12
+#define GT_PORT_VEE 13
+#define GT_PORT_FD 14
+#define GT_PORT_CSI 15
+#define GT_PORT_MP 16
+#define GT_PORT_HSI 17
+#define GT_PORT_SS 18
+#define GT_PORT_TS 19
+#define GT_PORT_DMA 20
+#define GT_PORT_NDFC0 21
+#define GT_PORT_NDFC1 22
+#define GT_PORT_CPUS 23
+#define GT_PORT_TH 24
+#define GT_PORT_GMAC 25
+#define GT_PORT_USB0 26
+#define GT_PORT_MSTG0 27
+#define GT_PORT_MSTG1 28
+#define GT_PORT_MSTG2 29
+#define GT_PORT_MSTG3 30
+#define GT_PORT_USB1 31
+#define GT_PORT_GPU0 32
+#define GT_PORT_GPU1 33
+#define GT_PORT_USB2 34
+#define GT_PORT_CPUM0 35
+
+#define GP_MST_CFG_DEFAULT \
+ ((GT_QOS_MAX << GT_QOS_SHIFT) | \
+ (GT_THD_MAX << GT_THD1_SHIFT) | \
+ (GT_REQN_MAX << GT_REQN_SHIFT) | \
+ (GT_THD_MAX << GT_THD0_SHIFT))
+
+#endif
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
index 9d07d6b..e73114e 100644
--- a/arch/arm/mach-sunxi/Makefile
+++ b/arch/arm/mach-sunxi/Makefile
@@ -32,7 +32,7 @@ obj-y += clock_sun8i_a83t.o
else
obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o
endif
-obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o
+obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o gtbus_sun9i.o
obj-$(CONFIG_AXP152_POWER) += pmic_bus.o
obj-$(CONFIG_AXP209_POWER) += pmic_bus.o
diff --git a/arch/arm/mach-sunxi/clock.c b/arch/arm/mach-sunxi/clock.c
index 0b8fc94..e6f53f9 100644
--- a/arch/arm/mach-sunxi/clock.c
+++ b/arch/arm/mach-sunxi/clock.c
@@ -13,16 +13,22 @@
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/prcm.h>
+#include <asm/arch/gtbus.h>
#include <asm/arch/sys_proto.h>
__weak void clock_init_sec(void)
{
}
+__weak void gtbus_init(void)
+{
+}
+
int clock_init(void)
{
#ifdef CONFIG_SPL_BUILD
clock_init_safe();
+ gtbus_init();
#endif
clock_init_uart();
clock_init_sec();
diff --git a/arch/arm/mach-sunxi/gtbus_sun9i.c b/arch/arm/mach-sunxi/gtbus_sun9i.c
new file mode 100644
index 0000000..c20d3c0
--- /dev/null
+++ b/arch/arm/mach-sunxi/gtbus_sun9i.c
@@ -0,0 +1,48 @@
+/*
+ * GTBUS initialisation for sun9i
+ *
+ * (C) Copyright 2016 Theobroma Systems Design und Consulting GmbH
+ * Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/gtbus_sun9i.h>
+#include <asm/arch/sys_proto.h>
+
+#ifdef CONFIG_SPL_BUILD
+
+void gtbus_init(void)
+{
+ struct sunxi_gtbus_reg * const gtbus =
+ (struct sunxi_gtbus_reg *)SUNXI_GTBUS_BASE;
+
+ /*
+ * We use the same setting that Allwinner used in Boot0 for now.
+ * It may be advantageous to adjust these for various workloads
+ * (e.g. headless use cases that focus on IO throughput).
+ */
+ writel((GT_PRIO_HIGH << GT_PORT_FE0) |
+ (GT_PRIO_HIGH << GT_PORT_BE1) |
+ (GT_PRIO_HIGH << GT_PORT_BE2) |
+ (GT_PRIO_HIGH << GT_PORT_IEP0) |
+ (GT_PRIO_HIGH << GT_PORT_FE1) |
+ (GT_PRIO_HIGH << GT_PORT_BE0) |
+ (GT_PRIO_HIGH << GT_PORT_FE2) |
+ (GT_PRIO_HIGH << GT_PORT_IEP1),
+ &gtbus->mst_read_prio_cfg[0]);
+
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_FE0]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_FE0]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_BE1]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_BE2]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_IEP0]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_FE1]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_BE0]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_FE2]);
+ writel(GP_MST_CFG_DEFAULT, &gtbus->mst_cfg[GT_PORT_IEP1]);
+}
+
+#endif
generated by cgit v0.10.2 at 2024-11-04 20:13:28 (GMT)