[ARM] add Marvell 78xx0 ARM SoC support
The Marvell Discovery Duo (MV78xx0) is a family of ARM SoCs featuring
(depending on the model) one or two Feroceon CPU cores with 512K of L2
cache and VFP coprocessors running at (depending on the model) between
800 MHz and 1.2 GHz, and features a DDR2 controller, two PCIe
interfaces that can each run either in x4 or quad x1 mode, three USB
2.0 interfaces, two 3Gb/s SATA II interfaces, a SPI interface, two
TWSI interfaces, a crypto accelerator, IDMA/XOR engines, a SPI
interface, four UARTs, and depending on the model, two or four gigabit
ethernet interfaces.
This patch adds basic support for the platform, and allows booting
on the MV78x00 development board, with functional UARTs, SATA, PCIe,
GigE and USB ports.
Signed-off-by: Stanislav Samsonov <samsonov@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/include/asm-arm/arch-mv78xx0/debug-macro.S b/include/asm-arm/arch-mv78xx0/debug-macro.S
new file mode 100644
index 0000000..d0595bd
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/debug-macro.S
@@ -0,0 +1,20 @@
+/*
+ * include/asm-arm/arch-mv78xx0/debug-macro.S
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <asm/arch/mv78xx0.h>
+
+ .macro addruart,rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ ldreq \rx, =MV78XX0_REGS_PHYS_BASE
+ ldrne \rx, =MV78XX0_REGS_VIRT_BASE
+ orr \rx, \rx, #0x00012000
+ .endm
+
+#define UART_SHIFT 2
+#include <asm/hardware/debug-8250.S>
diff --git a/include/asm-arm/arch-mv78xx0/dma.h b/include/asm-arm/arch-mv78xx0/dma.h
new file mode 100644
index 0000000..40a8c17
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/dma.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/include/asm-arm/arch-mv78xx0/entry-macro.S b/include/asm-arm/arch-mv78xx0/entry-macro.S
new file mode 100644
index 0000000..e9a606b
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/entry-macro.S
@@ -0,0 +1,39 @@
+/*
+ * include/asm-arm/arch-mv78xx0/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Marvell MV78xx0 platforms
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <asm/arch/mv78xx0.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =IRQ_VIRT_BASE
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ @ check low interrupts
+ ldr \irqstat, [\base, #IRQ_CAUSE_LOW_OFF]
+ ldr \tmp, [\base, #IRQ_MASK_LOW_OFF]
+ mov \irqnr, #31
+ ands \irqstat, \irqstat, \tmp
+
+ @ if no low interrupts set, check high interrupts
+ ldreq \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF]
+ ldreq \tmp, [\base, #IRQ_MASK_HIGH_OFF]
+ moveq \irqnr, #63
+ andeqs \irqstat, \irqstat, \tmp
+
+ @ find first active interrupt source
+ clzne \irqstat, \irqstat
+ subne \irqnr, \irqnr, \irqstat
+ .endm
diff --git a/include/asm-arm/arch-mv78xx0/hardware.h b/include/asm-arm/arch-mv78xx0/hardware.h
new file mode 100644
index 0000000..8e179260
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/hardware.h
@@ -0,0 +1,21 @@
+/*
+ * include/asm-arm/arch-mv78xx0/hardware.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include "mv78xx0.h"
+
+#define pcibios_assign_all_busses() 1
+
+#define PCIBIOS_MIN_IO 0x00001000
+#define PCIBIOS_MIN_MEM 0x01000000
+#define PCIMEM_BASE MV78XX0_PCIE_MEM_PHYS_BASE /* mem base for VGA */
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/io.h b/include/asm-arm/arch-mv78xx0/io.h
new file mode 100644
index 0000000..415d4c9
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/io.h
@@ -0,0 +1,26 @@
+/*
+ * include/asm-arm/arch-mv78xx0/io.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_IO_H
+#define __ASM_ARCH_IO_H
+
+#include "mv78xx0.h"
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+static inline void __iomem *__io(unsigned long addr)
+{
+ return (void __iomem *)((addr - MV78XX0_PCIE_IO_PHYS_BASE(0))
+ + MV78XX0_PCIE_IO_VIRT_BASE(0));
+}
+
+#define __io(a) __io(a)
+#define __mem_pci(a) (a)
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/irqs.h b/include/asm-arm/arch-mv78xx0/irqs.h
new file mode 100644
index 0000000..7593045
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/irqs.h
@@ -0,0 +1,91 @@
+/*
+ * include/asm-arm/arch-mv78xx0/irqs.h
+ *
+ * IRQ definitions for Marvell MV78xx0 SoCs
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+#include "mv78xx0.h" /* need GPIO_MAX */
+
+/*
+ * MV78xx0 Low Interrupt Controller
+ */
+#define IRQ_MV78XX0_ERR 0
+#define IRQ_MV78XX0_SPI 1
+#define IRQ_MV78XX0_I2C_0 2
+#define IRQ_MV78XX0_I2C_1 3
+#define IRQ_MV78XX0_IDMA_0 4
+#define IRQ_MV78XX0_IDMA_1 5
+#define IRQ_MV78XX0_IDMA_2 6
+#define IRQ_MV78XX0_IDMA_3 7
+#define IRQ_MV78XX0_TIMER_0 8
+#define IRQ_MV78XX0_TIMER_1 9
+#define IRQ_MV78XX0_TIMER_2 10
+#define IRQ_MV78XX0_TIMER_3 11
+#define IRQ_MV78XX0_UART_0 12
+#define IRQ_MV78XX0_UART_1 13
+#define IRQ_MV78XX0_UART_2 14
+#define IRQ_MV78XX0_UART_3 15
+#define IRQ_MV78XX0_USB_0 16
+#define IRQ_MV78XX0_USB_1 17
+#define IRQ_MV78XX0_USB_2 18
+#define IRQ_MV78XX0_CRYPTO 19
+#define IRQ_MV78XX0_SDIO_0 20
+#define IRQ_MV78XX0_SDIO_1 21
+#define IRQ_MV78XX0_XOR_0 22
+#define IRQ_MV78XX0_XOR_1 23
+#define IRQ_MV78XX0_I2S_0 24
+#define IRQ_MV78XX0_I2S_1 25
+#define IRQ_MV78XX0_SATA 26
+#define IRQ_MV78XX0_TDMI 27
+
+/*
+ * MV78xx0 High Interrupt Controller
+ */
+#define IRQ_MV78XX0_PCIE_00 32
+#define IRQ_MV78XX0_PCIE_01 33
+#define IRQ_MV78XX0_PCIE_02 34
+#define IRQ_MV78XX0_PCIE_03 35
+#define IRQ_MV78XX0_PCIE_10 36
+#define IRQ_MV78XX0_PCIE_11 37
+#define IRQ_MV78XX0_PCIE_12 38
+#define IRQ_MV78XX0_PCIE_13 39
+#define IRQ_MV78XX0_GE00_SUM 40
+#define IRQ_MV78XX0_GE00_RX 41
+#define IRQ_MV78XX0_GE00_TX 42
+#define IRQ_MV78XX0_GE00_MISC 43
+#define IRQ_MV78XX0_GE01_SUM 44
+#define IRQ_MV78XX0_GE01_RX 45
+#define IRQ_MV78XX0_GE01_TX 46
+#define IRQ_MV78XX0_GE01_MISC 47
+#define IRQ_MV78XX0_GE10_SUM 48
+#define IRQ_MV78XX0_GE10_RX 49
+#define IRQ_MV78XX0_GE10_TX 50
+#define IRQ_MV78XX0_GE10_MISC 51
+#define IRQ_MV78XX0_GE11_SUM 52
+#define IRQ_MV78XX0_GE11_RX 53
+#define IRQ_MV78XX0_GE11_TX 54
+#define IRQ_MV78XX0_GE11_MISC 55
+#define IRQ_MV78XX0_GPIO_0_7 56
+#define IRQ_MV78XX0_GPIO_8_15 57
+#define IRQ_MV78XX0_GPIO_16_23 58
+#define IRQ_MV78XX0_GPIO_24_31 59
+#define IRQ_MV78XX0_DB_IN 60
+#define IRQ_MV78XX0_DB_OUT 61
+
+/*
+ * MV78XX0 General Purpose Pins
+ */
+#define IRQ_MV78XX0_GPIO_START 64
+#define NR_GPIO_IRQS GPIO_MAX
+
+#define NR_IRQS (IRQ_MV78XX0_GPIO_START + NR_GPIO_IRQS)
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/memory.h b/include/asm-arm/arch-mv78xx0/memory.h
new file mode 100644
index 0000000..721a6b1
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/memory.h
@@ -0,0 +1,14 @@
+/*
+ * include/asm-arm/arch-mv78xx0/memory.h
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET UL(0x00000000)
+
+#define __virt_to_bus(x) __virt_to_phys(x)
+#define __bus_to_virt(x) __phys_to_virt(x)
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/mv78xx0.h b/include/asm-arm/arch-mv78xx0/mv78xx0.h
new file mode 100644
index 0000000..9f5d83c
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/mv78xx0.h
@@ -0,0 +1,126 @@
+/*
+ * include/asm-arm/arch-mv78xx0/mv78xx0.h
+ *
+ * Generic definitions for Marvell MV78xx0 SoC flavors:
+ * MV781x0 and MV782x0.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_MV78XX0_H
+#define __ASM_ARCH_MV78XX0_H
+
+/*
+ * Marvell MV78xx0 address maps.
+ *
+ * phys
+ * c0000000 PCIe Memory space
+ * f0800000 PCIe #0 I/O space
+ * f0900000 PCIe #1 I/O space
+ * f0a00000 PCIe #2 I/O space
+ * f0b00000 PCIe #3 I/O space
+ * f0c00000 PCIe #4 I/O space
+ * f0d00000 PCIe #5 I/O space
+ * f0e00000 PCIe #6 I/O space
+ * f0f00000 PCIe #7 I/O space
+ * f1000000 on-chip peripheral registers
+ *
+ * virt phys size
+ * fe400000 f102x000 16K core-specific peripheral registers
+ * fe700000 f0800000 1M PCIe #0 I/O space
+ * fe800000 f0900000 1M PCIe #1 I/O space
+ * fe900000 f0a00000 1M PCIe #2 I/O space
+ * fea00000 f0b00000 1M PCIe #3 I/O space
+ * feb00000 f0c00000 1M PCIe #4 I/O space
+ * fec00000 f0d00000 1M PCIe #5 I/O space
+ * fed00000 f0e00000 1M PCIe #6 I/O space
+ * fee00000 f0f00000 1M PCIe #7 I/O space
+ * fef00000 f1000000 1M on-chip peripheral registers
+ */
+#define MV78XX0_CORE0_REGS_PHYS_BASE 0xf1020000
+#define MV78XX0_CORE1_REGS_PHYS_BASE 0xf1024000
+#define MV78XX0_CORE_REGS_VIRT_BASE 0xfe400000
+#define MV78XX0_CORE_REGS_SIZE SZ_16K
+
+#define MV78XX0_PCIE_IO_PHYS_BASE(i) (0xf0800000 + ((i) << 20))
+#define MV78XX0_PCIE_IO_VIRT_BASE(i) (0xfe700000 + ((i) << 20))
+#define MV78XX0_PCIE_IO_SIZE SZ_1M
+
+#define MV78XX0_REGS_PHYS_BASE 0xf1000000
+#define MV78XX0_REGS_VIRT_BASE 0xfef00000
+#define MV78XX0_REGS_SIZE SZ_1M
+
+#define MV78XX0_PCIE_MEM_PHYS_BASE 0xc0000000
+#define MV78XX0_PCIE_MEM_SIZE 0x30000000
+
+/*
+ * Core-specific peripheral registers.
+ */
+#define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE)
+#define CPU_CONTROL (BRIDGE_VIRT_BASE | 0x0104)
+#define L2_WRITETHROUGH 0x00020000
+#define RSTOUTn_MASK (BRIDGE_VIRT_BASE | 0x0108)
+#define SOFT_RESET_OUT_EN 0x00000004
+#define SYSTEM_SOFT_RESET (BRIDGE_VIRT_BASE | 0x010c)
+#define SOFT_RESET 0x00000001
+#define BRIDGE_CAUSE (BRIDGE_VIRT_BASE | 0x0110)
+#define BRIDGE_MASK (BRIDGE_VIRT_BASE | 0x0114)
+#define BRIDGE_INT_TIMER0 0x0002
+#define BRIDGE_INT_TIMER1 0x0004
+#define BRIDGE_INT_TIMER1_CLR (~0x0004)
+#define IRQ_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0200)
+#define IRQ_CAUSE_LOW_OFF 0x0004
+#define IRQ_CAUSE_HIGH_OFF 0x0008
+#define IRQ_MASK_LOW_OFF 0x0010
+#define IRQ_MASK_HIGH_OFF 0x0014
+#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
+
+/*
+ * Register Map
+ */
+#define DDR_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x00000)
+#define DDR_WINDOW_CPU0_BASE (DDR_VIRT_BASE | 0x1500)
+#define DDR_WINDOW_CPU1_BASE (DDR_VIRT_BASE | 0x1700)
+
+#define DEV_BUS_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x10000)
+#define DEV_BUS_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x10000)
+#define SAMPLE_AT_RESET_LOW (DEV_BUS_VIRT_BASE | 0x0030)
+#define SAMPLE_AT_RESET_HIGH (DEV_BUS_VIRT_BASE | 0x0034)
+#define UART0_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2000)
+#define UART0_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2000)
+#define UART1_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2100)
+#define UART1_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2100)
+#define UART2_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2200)
+#define UART2_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2200)
+#define UART3_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2300)
+#define UART3_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2300)
+
+#define GE10_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x30000)
+#define GE11_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x34000)
+
+#define PCIE00_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x40000)
+#define PCIE01_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x44000)
+#define PCIE02_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x48000)
+#define PCIE03_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x4c000)
+
+#define USB0_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x50000)
+#define USB1_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x51000)
+#define USB2_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x52000)
+
+#define GE00_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x70000)
+#define GE01_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0x74000)
+
+#define PCIE10_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x80000)
+#define PCIE11_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x84000)
+#define PCIE12_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x88000)
+#define PCIE13_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x8c000)
+
+#define SATA_PHYS_BASE (MV78XX0_REGS_PHYS_BASE | 0xa0000)
+
+
+#define GPIO_MAX 32
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/system.h b/include/asm-arm/arch-mv78xx0/system.h
new file mode 100644
index 0000000..7eb47d3
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/system.h
@@ -0,0 +1,37 @@
+/*
+ * include/asm-arm/arch-mv78xx0/system.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/mv78xx0.h>
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+ /*
+ * Enable soft reset to assert RSTOUTn.
+ */
+ writel(SOFT_RESET_OUT_EN, RSTOUTn_MASK);
+
+ /*
+ * Assert soft reset.
+ */
+ writel(SOFT_RESET, SYSTEM_SOFT_RESET);
+
+ while (1)
+ ;
+}
+
+
+#endif
diff --git a/include/asm-arm/arch-mv78xx0/timex.h b/include/asm-arm/arch-mv78xx0/timex.h
new file mode 100644
index 0000000..a854b1c
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/timex.h
@@ -0,0 +1,9 @@
+/*
+ * include/asm-arm/arch-mv78xx0/timex.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#define CLOCK_TICK_RATE (100 * HZ)
diff --git a/include/asm-arm/arch-mv78xx0/uncompress.h b/include/asm-arm/arch-mv78xx0/uncompress.h
new file mode 100644
index 0000000..3bfe0a2
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/uncompress.h
@@ -0,0 +1,47 @@
+/*
+ * include/asm-arm/arch-mv78xx0/uncompress.h
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/serial_reg.h>
+#include <asm/arch/mv78xx0.h>
+
+#define SERIAL_BASE ((unsigned char *)UART0_PHYS_BASE)
+
+static void putc(const char c)
+{
+ unsigned char *base = SERIAL_BASE;
+ int i;
+
+ for (i = 0; i < 0x1000; i++) {
+ if (base[UART_LSR << 2] & UART_LSR_THRE)
+ break;
+ barrier();
+ }
+
+ base[UART_TX << 2] = c;
+}
+
+static void flush(void)
+{
+ unsigned char *base = SERIAL_BASE;
+ unsigned char mask;
+ int i;
+
+ mask = UART_LSR_TEMT | UART_LSR_THRE;
+
+ for (i = 0; i < 0x1000; i++) {
+ if ((base[UART_LSR << 2] & mask) == mask)
+ break;
+ barrier();
+ }
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-mv78xx0/vmalloc.h b/include/asm-arm/arch-mv78xx0/vmalloc.h
new file mode 100644
index 0000000..f2c5121
--- /dev/null
+++ b/include/asm-arm/arch-mv78xx0/vmalloc.h
@@ -0,0 +1,5 @@
+/*
+ * include/asm-arm/arch-mv78xx0/vmalloc.h
+ */
+
+#define VMALLOC_END 0xfe000000