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authorUwe Kleine-König <Uwe.Kleine-Koenig@digi.com>2008-02-15 08:41:06 +0100
committerUwe Kleine-König <Uwe.Kleine-Koenig@digi.com>2008-03-31 08:17:01 +0200
commit724ce5ee15ff4c4f3035110b683b990a3b33c832 (patch)
tree7b07d25bf64d2e6dad4495c847d1b24d9d5dca43 /include/asm-arm/arch-ns9xxx
parent3a581349b961f225893103a0fbbd065a831c5184 (diff)
ns9xxx: prepare for adding support for Digi ns921x processors
The hardware team changed some things that were taken as being common to all ns9xxx processors up to now. This patch addresses: - irqs: s/IRQ_/IRQ_NS9360_/ - system module registers: some registers are still general, their definition lives now in include/asm-arm/arch-ns9xxx/regs-sys-common.h. The ns9360 specific ones are in .../regs-sys-ns9360.h As a result ns9360_systemclock cannot be static inline any more as its definition needs regs-sys-ns9360.h. This becomes a real problem when adding support for ns9215 as this will need regs-sys-ns9215.h and including both files will not work. For the same reason ns9360_reset() is now non-inline and gpio functions live in their own file. - register mapping: s/ns9xxx_map_io/ns9360_map_io/ - timer registers: move time.c to time-ns9360.c; s/ns9xxx_timer/ns9360_timer/ Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Diffstat (limited to 'include/asm-arm/arch-ns9xxx')
-rw-r--r--include/asm-arm/arch-ns9xxx/clock.h71
-rw-r--r--include/asm-arm/arch-ns9xxx/entry-macro.S4
-rw-r--r--include/asm-arm/arch-ns9xxx/irqs.h67
-rw-r--r--include/asm-arm/arch-ns9xxx/processor-ns9360.h32
-rw-r--r--include/asm-arm/arch-ns9xxx/regs-sys-common.h31
-rw-r--r--include/asm-arm/arch-ns9xxx/regs-sys-ns9360.h (renamed from include/asm-arm/arch-ns9xxx/regs-sys.h)25
-rw-r--r--include/asm-arm/arch-ns9xxx/system.h17
7 files changed, 113 insertions, 134 deletions
diff --git a/include/asm-arm/arch-ns9xxx/clock.h b/include/asm-arm/arch-ns9xxx/clock.h
deleted file mode 100644
index b943d3a92a1..00000000000
--- a/include/asm-arm/arch-ns9xxx/clock.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * include/asm-arm/arch-ns9xxx/clock.h
- *
- * Copyright (C) 2007 by Digi International Inc.
- * All rights reserved.
- *
- * 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.
- */
-#ifndef __ASM_ARCH_CLOCK_H
-#define __ASM_ARCH_CLOCK_H
-
-#include <asm/arch-ns9xxx/regs-sys.h>
-
-#define CRYSTAL 29491200 /* Hz */
-
-/* The HRM calls this value f_vco */
-static inline u32 ns9xxx_systemclock(void) __attribute__((const));
-static inline u32 ns9xxx_systemclock(void)
-{
- u32 pll = __raw_readl(SYS_PLL);
-
- /*
- * The system clock should be a multiple of HZ * TIMERCLOCKSELECT (in
- * time.c).
- *
- * The following values are given:
- * - TIMERCLOCKSELECT == 2^i for an i in {0 .. 6}
- * - CRYSTAL == 29491200 == 2^17 * 3^2 * 5^2
- * - ND in {0 .. 31}
- * - FS in {0 .. 3}
- *
- * Assuming the worst, we consider:
- * - TIMERCLOCKSELECT == 64
- * - ND == 0
- * - FS == 3
- *
- * So HZ should be a divisor of:
- * (CRYSTAL * (ND + 1) >> FS) / TIMERCLOCKSELECT
- * == (2^17 * 3^2 * 5^2 * 1 >> 3) / 64
- * == 2^8 * 3^2 * 5^2
- * == 57600
- *
- * Currently HZ is defined to be 100 for this platform.
- *
- * Fine.
- */
- return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1)
- >> REGGETIM(pll, SYS_PLL, FS);
-}
-
-static inline u32 ns9xxx_cpuclock(void) __attribute__((const));
-static inline u32 ns9xxx_cpuclock(void)
-{
- return ns9xxx_systemclock() / 2;
-}
-
-static inline u32 ns9xxx_ahbclock(void) __attribute__((const));
-static inline u32 ns9xxx_ahbclock(void)
-{
- return ns9xxx_systemclock() / 4;
-}
-
-static inline u32 ns9xxx_bbusclock(void) __attribute__((const));
-static inline u32 ns9xxx_bbusclock(void)
-{
- return ns9xxx_systemclock() / 8;
-}
-
-#endif /* ifndef __ASM_ARCH_CLOCK_H */
diff --git a/include/asm-arm/arch-ns9xxx/entry-macro.S b/include/asm-arm/arch-ns9xxx/entry-macro.S
index 5c706dd2379..89a21c53046 100644
--- a/include/asm-arm/arch-ns9xxx/entry-macro.S
+++ b/include/asm-arm/arch-ns9xxx/entry-macro.S
@@ -1,7 +1,7 @@
/*
* include/asm-arm/arch-ns9xxx/entry-macro.S
*
- * Copyright (C) 2006 by Digi International Inc.
+ * Copyright (C) 2006,2007 by Digi International Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
@@ -9,7 +9,7 @@
* the Free Software Foundation.
*/
#include <asm/hardware.h>
-#include <asm/arch-ns9xxx/regs-sys.h>
+#include <asm/arch-ns9xxx/regs-sys-common.h>
.macro get_irqnr_preamble, base, tmp
ldr \base, =SYS_ISRADDR
diff --git a/include/asm-arm/arch-ns9xxx/irqs.h b/include/asm-arm/arch-ns9xxx/irqs.h
index 25d8d28b27f..e83d48ec42c 100644
--- a/include/asm-arm/arch-ns9xxx/irqs.h
+++ b/include/asm-arm/arch-ns9xxx/irqs.h
@@ -1,7 +1,7 @@
/*
* include/asm-arm/arch-ns9xxx/irqs.h
*
- * Copyright (C) 2006 by Digi International Inc.
+ * Copyright (C) 2006,2007 by Digi International Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
@@ -11,38 +11,39 @@
#ifndef __ASM_ARCH_IRQS_H
#define __ASM_ARCH_IRQS_H
-#define IRQ_WATCHDOG 0
-#define IRQ_AHBBUSERR 1
-#define IRQ_BBUSAGG 2
+/* NetSilicon 9360 */
+#define IRQ_NS9XXX_WATCHDOG 0
+#define IRQ_NS9XXX_AHBBUSERR 1
+#define IRQ_NS9360_BBUSAGG 2
/* irq 3 is reserved for NS9360 */
-#define IRQ_ETHRX 4
-#define IRQ_ETHTX 5
-#define IRQ_ETHPHY 6
-#define IRQ_LCD 7
-#define IRQ_SERBRX 8
-#define IRQ_SERBTX 9
-#define IRQ_SERARX 10
-#define IRQ_SERATX 11
-#define IRQ_SERCRX 12
-#define IRQ_SERCTX 13
-#define IRQ_I2C 14
-#define IRQ_BBUSDMA 15
-#define IRQ_TIMER0 16
-#define IRQ_TIMER1 17
-#define IRQ_TIMER2 18
-#define IRQ_TIMER3 19
-#define IRQ_TIMER4 20
-#define IRQ_TIMER5 21
-#define IRQ_TIMER6 22
-#define IRQ_TIMER7 23
-#define IRQ_RTC 24
-#define IRQ_USBHOST 25
-#define IRQ_USBDEVICE 26
-#define IRQ_IEEE1284 27
-#define IRQ_EXT0 28
-#define IRQ_EXT1 29
-#define IRQ_EXT2 30
-#define IRQ_EXT3 31
+#define IRQ_NS9XXX_ETHRX 4
+#define IRQ_NS9XXX_ETHTX 5
+#define IRQ_NS9XXX_ETHPHY 6
+#define IRQ_NS9360_LCD 7
+#define IRQ_NS9360_SERBRX 8
+#define IRQ_NS9360_SERBTX 9
+#define IRQ_NS9360_SERARX 10
+#define IRQ_NS9360_SERATX 11
+#define IRQ_NS9360_SERCRX 12
+#define IRQ_NS9360_SERCTX 13
+#define IRQ_NS9360_I2C 14
+#define IRQ_NS9360_BBUSDMA 15
+#define IRQ_NS9360_TIMER0 16
+#define IRQ_NS9360_TIMER1 17
+#define IRQ_NS9360_TIMER2 18
+#define IRQ_NS9360_TIMER3 19
+#define IRQ_NS9360_TIMER4 20
+#define IRQ_NS9360_TIMER5 21
+#define IRQ_NS9360_TIMER6 22
+#define IRQ_NS9360_TIMER7 23
+#define IRQ_NS9360_RTC 24
+#define IRQ_NS9360_USBHOST 25
+#define IRQ_NS9360_USBDEVICE 26
+#define IRQ_NS9360_IEEE1284 27
+#define IRQ_NS9XXX_EXT0 28
+#define IRQ_NS9XXX_EXT1 29
+#define IRQ_NS9XXX_EXT2 30
+#define IRQ_NS9XXX_EXT3 31
#define BBUS_IRQ(irq) (32 + irq)
@@ -67,7 +68,7 @@
/*
* these Interrupts are specific for the a9m9750dev board.
* They are generated by an FPGA that interrupts the CPU on
- * IRQ_EXT2
+ * IRQ_NS9360_EXT2
*/
#define FPGA_IRQ(irq) (64 + irq)
diff --git a/include/asm-arm/arch-ns9xxx/processor-ns9360.h b/include/asm-arm/arch-ns9xxx/processor-ns9360.h
new file mode 100644
index 00000000000..f3aa6c50dbe
--- /dev/null
+++ b/include/asm-arm/arch-ns9xxx/processor-ns9360.h
@@ -0,0 +1,32 @@
+/*
+ * include/asm-arm/arch-ns9xxx/processor-ns9360.h
+ *
+ * Copyright (C) 2007 by Digi International Inc.
+ * All rights reserved.
+ *
+ * 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.
+ */
+#ifndef __ASM_ARCH_PROCESSORNS9360_H
+#define __ASM_ARCH_PROCESSORNS9360_H
+
+#include <linux/init.h>
+
+void ns9360_reset(char mode);
+
+unsigned long ns9360_systemclock(void) __attribute__((const));
+
+static inline unsigned long ns9360_cpuclock(void) __attribute__((const));
+static inline unsigned long ns9360_cpuclock(void)
+{
+ return ns9360_systemclock() / 2;
+}
+
+void __init ns9360_map_io(void);
+
+extern struct sys_timer ns9360_timer;
+
+int ns9360_gpio_configure(unsigned gpio, int inv, int func);
+
+#endif /* ifndef __ASM_ARCH_PROCESSORNS9360_H */
diff --git a/include/asm-arm/arch-ns9xxx/regs-sys-common.h b/include/asm-arm/arch-ns9xxx/regs-sys-common.h
new file mode 100644
index 00000000000..956c57cb781
--- /dev/null
+++ b/include/asm-arm/arch-ns9xxx/regs-sys-common.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-arm/arch-ns9xxx/regs-sys-common.h
+ *
+ * Copyright (C) 2007 by Digi International Inc.
+ * All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_REGSSYSCOMMON_H
+#define __ASM_ARCH_REGSSYSCOMMON_H
+#include <asm/hardware.h>
+
+/* Interrupt Vector Address Register Level x */
+#define SYS_IVA(x) __REG2(0xa09000c4, (x))
+
+/* Interrupt Configuration registers */
+#define SYS_IC(x) __REG2(0xa0900144, (x))
+
+/* ISRADDR */
+#define SYS_ISRADDR __REG(0xa0900164)
+
+/* Interrupt Status Active */
+#define SYS_ISA __REG(0xa0900168)
+
+/* Interrupt Status Raw */
+#define SYS_ISR __REG(0xa090016c)
+
+#endif /* ifndef __ASM_ARCH_REGSSYSCOMMON_H */
diff --git a/include/asm-arm/arch-ns9xxx/regs-sys.h b/include/asm-arm/arch-ns9xxx/regs-sys-ns9360.h
index 749262f8620..318b6945afb 100644
--- a/include/asm-arm/arch-ns9xxx/regs-sys.h
+++ b/include/asm-arm/arch-ns9xxx/regs-sys-ns9360.h
@@ -1,15 +1,15 @@
/*
- * include/asm-arm/arch-ns9xxx/regs-sys.h
+ * include/asm-arm/arch-ns9xxx/regs-sys-ns9360.h
*
- * Copyright (C) 2006 by Digi International Inc.
+ * Copyright (C) 2006,2007 by Digi International Inc.
* All rights reserved.
*
* 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.
*/
-#ifndef __ASM_ARCH_REGSSYS_H
-#define __ASM_ARCH_REGSSYS_H
+#ifndef __ASM_ARCH_REGSSYSNS9360_H
+#define __ASM_ARCH_REGSSYSNS9360_H
#include <asm/hardware.h>
@@ -27,21 +27,6 @@
/* Timer x Read register */
#define SYS_TR(x) __REG2(0xa0900084, (x))
-/* Interrupt Vector Address Register Level x */
-#define SYS_IVA(x) __REG2(0xa09000c4, (x))
-
-/* Interrupt Configuration registers */
-#define SYS_IC(x) __REG2(0xa0900144, (x))
-
-/* ISRADDR */
-#define SYS_ISRADDR __REG(0xa0900164)
-
-/* Interrupt Status Active */
-#define SYS_ISA __REG(0xa0900168)
-
-/* Interrupt Status Raw */
-#define SYS_ISR __REG(0xa090016c)
-
/* Timer Interrupt Status register */
#define SYS_TIS __REG(0xa0900170)
@@ -160,4 +145,4 @@
#define SYS_EIC_LVEDG_LEVEL __REGVAL(SYS_EIC_LVEDG, 0)
#define SYS_EIC_LVEDG_EDGE __REGVAL(SYS_EIC_LVEDG, 1)
-#endif /* ifndef __ASM_ARCH_REGSSYS_H */
+#endif /* ifndef __ASM_ARCH_REGSSYSNS9360_H */
diff --git a/include/asm-arm/arch-ns9xxx/system.h b/include/asm-arm/arch-ns9xxx/system.h
index c1082bd8977..1348073afe4 100644
--- a/include/asm-arm/arch-ns9xxx/system.h
+++ b/include/asm-arm/arch-ns9xxx/system.h
@@ -1,7 +1,7 @@
/*
* include/asm-arm/arch-ns9xxx/system.h
*
- * Copyright (C) 2006 by Digi International Inc.
+ * Copyright (C) 2006,2007 by Digi International Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
@@ -12,8 +12,8 @@
#define __ASM_ARCH_SYSTEM_H
#include <asm/proc-fns.h>
-#include <asm/arch-ns9xxx/regs-sys.h>
-#include <asm/mach-types.h>
+#include <asm/arch-ns9xxx/processor.h>
+#include <asm/arch-ns9xxx/processor-ns9360.h>
static inline void arch_idle(void)
{
@@ -22,11 +22,12 @@ static inline void arch_idle(void)
static inline void arch_reset(char mode)
{
- u32 reg;
-
- reg = __raw_readl(SYS_PLL) >> 16;
- REGSET(reg, SYS_PLL, SWC, YES);
- __raw_writel(reg, SYS_PLL);
+#ifdef CONFIG_PROCESSOR_NS9360
+ if (processor_is_ns9360())
+ ns9360_reset(mode);
+ else
+#endif
+ BUG();
BUG();
}