[ARM] 3567/2: arm: base support for Hilscher netX

Patch from Sascha Hauer

This patch adds the base support for Hilscher's netX network
processors.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

12 files changed, 439 insertions, 0 deletions

diff --git a/include/asm-arm/arch-netx/debug-macro.S b/include/asm-arm/arch-netx/debug-macro.S
new file mode 100644
index 000000000000..a940d0e80cb2
--- /dev/null
+++ b/include/asm-arm/arch-netx/debug-macro.S
@@ -0,0 +1,38 @@
+/* linux/include/asm-arm/arch-netx/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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 "hardware.h"
+
+		.macro	addruart,rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0x00100000		@ physical
+		movne	\rx, #io_p2v(0x00100000)	@ virtual
+		orr	\rx, \rx, #0x00000a00
+		.endm
+
+		.macro	senduart,rd,rx
+		str	\rd, [\rx, #0]
+		.endm
+
+		.macro	busyuart,rd,rx
+1002:		ldr	\rd, [\rx, #0x18]
+		tst	\rd, #(1 << 3)
+		bne	1002b
+		.endm
+
+		.macro	waituart,rd,rx
+1001:		ldr	\rd, [\rx, #0x18]
+		tst	\rd, #(1 << 3)
+		bne	1001b
+		.endm
diff --git a/include/asm-arm/arch-netx/dma.h b/include/asm-arm/arch-netx/dma.h
new file mode 100644
index 000000000000..4eda5feed81c
--- /dev/null
+++ b/include/asm-arm/arch-netx/dma.h
@@ -0,0 +1,21 @@
+/*
+ *  linux/include/asm-arm/arch-netx/dma.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define MAX_DMA_CHANNELS 0
+#define MAX_DMA_ADDRESS ~0
diff --git a/include/asm-arm/arch-netx/entry-macro.S b/include/asm-arm/arch-netx/entry-macro.S
new file mode 100644
index 000000000000..658df4d60ff3
--- /dev/null
+++ b/include/asm-arm/arch-netx/entry-macro.S
@@ -0,0 +1,35 @@
+/*
+ * include/asm-arm/arch-netx/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Hilscher netX based platforms
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <asm/hardware.h>
+
+		.macro  disable_fiq
+		.endm
+
+		.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+		mov	\base, #io_p2v(0x00100000)
+		add	\base, \base, #0x000ff000
+
+		ldr	\irqstat, [\base, #0]
+		clz	\irqnr, \irqstat
+		rsb     \irqnr, \irqnr, #31
+		cmp	\irqstat, #0
+		.endm
+
diff --git a/include/asm-arm/arch-netx/hardware.h b/include/asm-arm/arch-netx/hardware.h
new file mode 100644
index 000000000000..7786c45455cd
--- /dev/null
+++ b/include/asm-arm/arch-netx/hardware.h
@@ -0,0 +1,39 @@
+/*
+ * include/asm-arm/arch-netx/hardware.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#define NETX_IO_PHYS	0x00100000
+#define NETX_IO_VIRT	0xe0000000
+#define NETX_IO_SIZE	0x00100000
+
+#define SRAM_INTERNAL_PHYS_0 0x00000
+#define SRAM_INTERNAL_PHYS_1 0x08000
+#define SRAM_INTERNAL_PHYS_2 0x10000
+#define SRAM_INTERNAL_PHYS_3 0x18000
+#define SRAM_INTERNAL_PHYS(no) ((no) * 0x8000)
+
+#define XPEC_MEM_SIZE 0x4000
+#define XMAC_MEM_SIZE 0x1000
+#define SRAM_MEM_SIZE 0x8000
+
+#define io_p2v(x) ((x) - NETX_IO_PHYS + NETX_IO_VIRT)
+#define io_v2p(x) ((x) - NETX_IO_VIRT + NETX_IO_PHYS)
+
+#endif
diff --git a/include/asm-arm/arch-netx/io.h b/include/asm-arm/arch-netx/io.h
new file mode 100644
index 000000000000..81b7bc47747e
--- /dev/null
+++ b/include/asm-arm/arch-netx/io.h
@@ -0,0 +1,29 @@
+/*
+ *  linux/include/asm-arm/arch-netx/io.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __io(a)         ((void __iomem *)(a))
+#define __mem_pci(a)            (a)
+#define __mem_isa(a)            (a)
+
+#endif
diff --git a/include/asm-arm/arch-netx/irqs.h b/include/asm-arm/arch-netx/irqs.h
new file mode 100644
index 000000000000..a487dc6e2661
--- /dev/null
+++ b/include/asm-arm/arch-netx/irqs.h
@@ -0,0 +1,70 @@
+/*
+ * include/asm-arm/arch-netx/irqs.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define NETX_IRQ_VIC_START   0
+#define NETX_IRQ_SOFTINT     0
+#define NETX_IRQ_TIMER0      1
+#define NETX_IRQ_TIMER1      2
+#define NETX_IRQ_TIMER2      3
+#define NETX_IRQ_SYSTIME_NS  4
+#define NETX_IRQ_SYSTIME_S   5
+#define NETX_IRQ_GPIO_15     6
+#define NETX_IRQ_WATCHDOG    7
+#define NETX_IRQ_UART0       8
+#define NETX_IRQ_UART1       9
+#define NETX_IRQ_UART2      10
+#define NETX_IRQ_USB        11
+#define NETX_IRQ_SPI        12
+#define NETX_IRQ_I2C        13
+#define NETX_IRQ_LCD        14
+#define NETX_IRQ_HIF        15
+#define NETX_IRQ_GPIO_0_14  16
+#define NETX_IRQ_XPEC0      17
+#define NETX_IRQ_XPEC1      18
+#define NETX_IRQ_XPEC2      19
+#define NETX_IRQ_XPEC3      20
+#define NETX_IRQ_XPEC(no)   (17 + (no))
+#define NETX_IRQ_MSYNC0     21
+#define NETX_IRQ_MSYNC1     22
+#define NETX_IRQ_MSYNC2     23
+#define NETX_IRQ_MSYNC3     24
+#define NETX_IRQ_IRQ_PHY    25
+#define NETX_IRQ_ISO_AREA   26
+/* int 27 is reserved */
+/* int 28 is reserved */
+#define NETX_IRQ_TIMER3     29
+#define NETX_IRQ_TIMER4     30
+/* int 31 is reserved */
+
+#define NETX_IRQS 32
+
+/* for multiplexed irqs on gpio 0..14 */
+#define NETX_IRQ_GPIO(x) (NETX_IRQS + (x))
+#define NETX_IRQ_GPIO_LAST NETX_IRQ_GPIO(14)
+
+/* Host interface interrupts */
+#define NETX_IRQ_HIF_CHAINED(x)    (NETX_IRQ_GPIO_LAST + 1 + (x))
+#define NETX_IRQ_HIF_PIO35         NETX_IRQ_HIF_CHAINED(0)
+#define NETX_IRQ_HIF_PIO36         NETX_IRQ_HIF_CHAINED(1)
+#define NETX_IRQ_HIF_PIO40         NETX_IRQ_HIF_CHAINED(2)
+#define NETX_IRQ_HIF_PIO47         NETX_IRQ_HIF_CHAINED(3)
+#define NETX_IRQ_HIF_PIO72         NETX_IRQ_HIF_CHAINED(4)
+#define NETX_IRQ_HIF_LAST          NETX_IRQ_HIF_CHAINED(4)
+
+#define NR_IRQS (NETX_IRQ_HIF_LAST + 1)
diff --git a/include/asm-arm/arch-netx/memory.h b/include/asm-arm/arch-netx/memory.h
new file mode 100644
index 000000000000..6d8d2df3e99d
--- /dev/null
+++ b/include/asm-arm/arch-netx/memory.h
@@ -0,0 +1,36 @@
+/*
+ *  linux/include/asm-arm/arch-netx/memory.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET UL(0x80000000)
+
+/*
+ * Virtual view <-> DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *              address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *              to an address that the kernel can use.
+ */
+#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-netx/param.h b/include/asm-arm/arch-netx/param.h
new file mode 100644
index 000000000000..7a80c26178a8
--- /dev/null
+++ b/include/asm-arm/arch-netx/param.h
@@ -0,0 +1,18 @@
+/*
+ *  linux/include/asm-arm/arch-netx/param.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
diff --git a/include/asm-arm/arch-netx/system.h b/include/asm-arm/arch-netx/system.h
new file mode 100644
index 000000000000..52adf368d765
--- /dev/null
+++ b/include/asm-arm/arch-netx/system.h
@@ -0,0 +1,38 @@
+/*
+ * include/asm-arm/arch-netx/system.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include "netx-regs.h"
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	writel(NETX_SYSTEM_RES_CR_FIRMW_RES_EN | NETX_SYSTEM_RES_CR_FIRMW_RES,
+	       NETX_SYSTEM_RES_CR);
+}
+
+#endif
+
diff --git a/include/asm-arm/arch-netx/timex.h b/include/asm-arm/arch-netx/timex.h
new file mode 100644
index 000000000000..7fdb42da0b40
--- /dev/null
+++ b/include/asm-arm/arch-netx/timex.h
@@ -0,0 +1,20 @@
+/*
+ * include/asm-arm/arch-netx/timex.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define CLOCK_TICK_RATE 100000000
diff --git a/include/asm-arm/arch-netx/uncompress.h b/include/asm-arm/arch-netx/uncompress.h
new file mode 100644
index 000000000000..f89434547102
--- /dev/null
+++ b/include/asm-arm/arch-netx/uncompress.h
@@ -0,0 +1,76 @@
+/*
+ * include/asm-arm/arch-netx/uncompress.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * The following code assumes the serial port has already been
+ * initialized by the bootloader.  We search for the first enabled
+ * port in the most probable order.  If you didn't setup a port in
+ * your bootloader then nothing will appear (which might be desired).
+ *
+ * This does not append a newline
+ */
+
+#define REG(x) (*(volatile unsigned long *)(x))
+
+#define UART1_BASE 0x100a00
+#define UART2_BASE 0x100a80
+
+#define UART_DR 0x0
+
+#define UART_CR 0x14
+#define CR_UART_EN (1<<0)
+
+#define UART_FR 0x18
+#define FR_BUSY (1<<3)
+#define FR_TXFF (1<<5)
+
+static void putc(char c)
+{
+	unsigned long base;
+
+	if (REG(UART1_BASE + UART_CR) & CR_UART_EN)
+		base = UART1_BASE;
+	else if (REG(UART2_BASE + UART_CR) & CR_UART_EN)
+		base = UART2_BASE;
+	else
+		return;
+
+	while (REG(base + UART_FR) & FR_TXFF);
+	REG(base + UART_DR) = c;
+}
+
+static inline void flush(void)
+{
+	unsigned long base;
+
+	if (REG(UART1_BASE + UART_CR) & CR_UART_EN)
+		base = UART1_BASE;
+	else if (REG(UART2_BASE + UART_CR) & CR_UART_EN)
+		base = UART2_BASE;
+	else
+		return;
+
+	while (REG(base + UART_FR) & FR_BUSY);
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-netx/vmalloc.h b/include/asm-arm/arch-netx/vmalloc.h
new file mode 100644
index 000000000000..da2da5a595da
--- /dev/null
+++ b/include/asm-arm/arch-netx/vmalloc.h
@@ -0,0 +1,19 @@
+/*
+ *  linux/include/asm-arm/arch-netx/vmalloc.h
+ *
+ * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#define VMALLOC_END       (PAGE_OFFSET + 0x10000000)