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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2008-04-30 15:18:41 -0400
committerRalf Baechle <ralf@linux-mips.org>2008-05-12 11:46:52 -0400
commitc1dcb14ec2ae3c594ce1c2db953004083f2bd4a0 (patch)
tree1724db98ba009b3b8af1750af09f2992bc106eeb
parentff6814d53016081947ff4021e00db3f806a561c9 (diff)
[MIPS] Alchemy common code style cleanup
Fix many errors and warnings given by checkpatch.pl: - use of C99 // comments; - missing space between the type and asterisk in a variable declaration; - space between the asterisk and function/variable name; - leading spaces instead of tabs; - space after opening and before closing parentheses; - initialization of a 'static' variable to 0; - missing spaces around assignement/comparison operator; - brace not on the same line with condition (or 'else') in the 'if'/'switch' statement; - missing space between 'if'/'for'/'while' and opening parenthesis; - use of assignement in 'if' statement's condition; - printk() without KERN_* facility level; - EXPORT_SYMBOL() not following its function immediately; - unnecessary braces for single-statement block; - adding new 'typedef' (where including <linux/types.h> will do); - use of 'extern' in the .c file (where it can be avoided by including header); - line over 80 characters. In addition to these changes, also do the following: - insert missing space after opening brace and/or before closing brace in the structure initializers; - insert spaces between operator and its operands; - put the function's result type and name/parameters on the same line; - properly indent multi-line expressions; - remove commented out code; - remove useless initializers and code; - remove needless parentheses; - fix broken/excess indentation; - add missing spaces between operator and its operands; - insert missing and remove excess new lines; - group 'else' and 'if' together where possible; - make au1xxx_platform_init() 'static'; - regroup variable declarations in pm_do_freq() for prettier look; - replace numeric literals with the matching macros; - fix printk() format specifiers mismatching the argument types; - make the multi-line comment style consistent with the kernel style elsewhere by adding empty first line and/or adding space on their left side; - make two-line comments that only have one line of text one-line; - fix typos/errors, capitalize acronyms, etc. in the comments; - fix/remove obsolete references in the comments; - reformat some comments; - add comment about the CPU:counter clock ratio to calc_clock(); - update MontaVista copyright; - remove Pete Popov's and Steve Longerbeam's old email addresses... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat
-rw-r--r--arch/mips/au1000/common/Makefile7
-rw-r--r--arch/mips/au1000/common/au1xxx_irqmap.c145
-rw-r--r--arch/mips/au1000/common/clocks.c24
-rw-r--r--arch/mips/au1000/common/cputable.c5
-rw-r--r--arch/mips/au1000/common/dbdma.c389
-rw-r--r--arch/mips/au1000/common/dbg_io.c32
-rw-r--r--arch/mips/au1000/common/dma.c56
-rw-r--r--arch/mips/au1000/common/gpio.c6
-rw-r--r--arch/mips/au1000/common/irq.c6
-rw-r--r--arch/mips/au1000/common/pci.c11
-rw-r--r--arch/mips/au1000/common/platform.c7
-rw-r--r--arch/mips/au1000/common/power.c157
-rw-r--r--arch/mips/au1000/common/prom.c21
-rw-r--r--arch/mips/au1000/common/puts.c35
-rw-r--r--arch/mips/au1000/common/reset.c33
-rw-r--r--arch/mips/au1000/common/setup.c60
-rw-r--r--arch/mips/au1000/common/time.c78
17 files changed, 500 insertions, 572 deletions
diff --git a/arch/mips/au1000/common/Makefile b/arch/mips/au1000/common/Makefile
index 90e2d7a46e8e..dd0e19dacfcf 100644
--- a/arch/mips/au1000/common/Makefile
+++ b/arch/mips/au1000/common/Makefile
@@ -1,9 +1,8 @@
1# 1#
2# Copyright 2000 MontaVista Software Inc. 2# Copyright 2000, 2008 MontaVista Software Inc.
3# Author: MontaVista Software, Inc. 3# Author: MontaVista Software, Inc. <source@mvista.com>
4# ppopov@mvista.com or source@mvista.com
5# 4#
6# Makefile for the Alchemy Au1000 CPU, generic files. 5# Makefile for the Alchemy Au1xx0 CPUs, generic files.
7# 6#
8 7
9obj-y += prom.o irq.o puts.o time.o reset.o \ 8obj-y += prom.o irq.o puts.o time.o reset.o \
diff --git a/arch/mips/au1000/common/au1xxx_irqmap.c b/arch/mips/au1000/common/au1xxx_irqmap.c
index 37a10a01de9d..c7ca1596394c 100644
--- a/arch/mips/au1000/common/au1xxx_irqmap.c
+++ b/arch/mips/au1000/common/au1xxx_irqmap.c
@@ -40,20 +40,20 @@
40struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = { 40struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
41 41
42#if defined(CONFIG_SOC_AU1000) 42#if defined(CONFIG_SOC_AU1000)
43 { AU1000_UART0_INT, INTC_INT_HIGH_LEVEL, 0}, 43 { AU1000_UART0_INT, INTC_INT_HIGH_LEVEL, 0 },
44 { AU1000_UART1_INT, INTC_INT_HIGH_LEVEL, 0}, 44 { AU1000_UART1_INT, INTC_INT_HIGH_LEVEL, 0 },
45 { AU1000_UART2_INT, INTC_INT_HIGH_LEVEL, 0}, 45 { AU1000_UART2_INT, INTC_INT_HIGH_LEVEL, 0 },
46 { AU1000_UART3_INT, INTC_INT_HIGH_LEVEL, 0}, 46 { AU1000_UART3_INT, INTC_INT_HIGH_LEVEL, 0 },
47 { AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0}, 47 { AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0 },
48 { AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0}, 48 { AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0 },
49 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0}, 49 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0 },
50 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0}, 50 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0 },
51 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0}, 51 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0 },
52 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0}, 52 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0 },
53 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0}, 53 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0 },
54 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0}, 54 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0 },
55 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0}, 55 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0 },
56 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0}, 56 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0 },
57 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 }, 57 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
58 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 58 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
59 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 59 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
@@ -62,32 +62,32 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
62 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 62 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
63 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 63 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
64 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 }, 64 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
65 { AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0}, 65 { AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0 },
66 { AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0}, 66 { AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0 },
67 { AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 }, 67 { AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
68 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 }, 68 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
69 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 }, 69 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
70 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 }, 70 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
71 { AU1000_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 71 { AU1000_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
72 { AU1000_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 72 { AU1000_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
73 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 }, 73 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
74 74
75#elif defined(CONFIG_SOC_AU1500) 75#elif defined(CONFIG_SOC_AU1500)
76 76
77 { AU1500_UART0_INT, INTC_INT_HIGH_LEVEL, 0}, 77 { AU1500_UART0_INT, INTC_INT_HIGH_LEVEL, 0 },
78 { AU1000_PCI_INTA, INTC_INT_LOW_LEVEL, 0 }, 78 { AU1000_PCI_INTA, INTC_INT_LOW_LEVEL, 0 },
79 { AU1000_PCI_INTB, INTC_INT_LOW_LEVEL, 0 }, 79 { AU1000_PCI_INTB, INTC_INT_LOW_LEVEL, 0 },
80 { AU1500_UART3_INT, INTC_INT_HIGH_LEVEL, 0}, 80 { AU1500_UART3_INT, INTC_INT_HIGH_LEVEL, 0 },
81 { AU1000_PCI_INTC, INTC_INT_LOW_LEVEL, 0 }, 81 { AU1000_PCI_INTC, INTC_INT_LOW_LEVEL, 0 },
82 { AU1000_PCI_INTD, INTC_INT_LOW_LEVEL, 0 }, 82 { AU1000_PCI_INTD, INTC_INT_LOW_LEVEL, 0 },
83 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0}, 83 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0 },
84 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0}, 84 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0 },
85 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0}, 85 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0 },
86 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0}, 86 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0 },
87 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0}, 87 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0 },
88 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0}, 88 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0 },
89 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0}, 89 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0 },
90 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0}, 90 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0 },
91 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 }, 91 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
92 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 92 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
93 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 93 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
@@ -100,26 +100,26 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
100 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 }, 100 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
101 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 }, 101 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
102 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 }, 102 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
103 { AU1500_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 103 { AU1500_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
104 { AU1500_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 104 { AU1500_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
105 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 }, 105 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
106 106
107#elif defined(CONFIG_SOC_AU1100) 107#elif defined(CONFIG_SOC_AU1100)
108 108
109 { AU1100_UART0_INT, INTC_INT_HIGH_LEVEL, 0}, 109 { AU1100_UART0_INT, INTC_INT_HIGH_LEVEL, 0 },
110 { AU1100_UART1_INT, INTC_INT_HIGH_LEVEL, 0}, 110 { AU1100_UART1_INT, INTC_INT_HIGH_LEVEL, 0 },
111 { AU1100_SD_INT, INTC_INT_HIGH_LEVEL, 0}, 111 { AU1100_SD_INT, INTC_INT_HIGH_LEVEL, 0 },
112 { AU1100_UART3_INT, INTC_INT_HIGH_LEVEL, 0}, 112 { AU1100_UART3_INT, INTC_INT_HIGH_LEVEL, 0 },
113 { AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0}, 113 { AU1000_SSI0_INT, INTC_INT_HIGH_LEVEL, 0 },
114 { AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0}, 114 { AU1000_SSI1_INT, INTC_INT_HIGH_LEVEL, 0 },
115 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0}, 115 { AU1000_DMA_INT_BASE, INTC_INT_HIGH_LEVEL, 0 },
116 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0}, 116 { AU1000_DMA_INT_BASE+1, INTC_INT_HIGH_LEVEL, 0 },
117 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0}, 117 { AU1000_DMA_INT_BASE+2, INTC_INT_HIGH_LEVEL, 0 },
118 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0}, 118 { AU1000_DMA_INT_BASE+3, INTC_INT_HIGH_LEVEL, 0 },
119 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0}, 119 { AU1000_DMA_INT_BASE+4, INTC_INT_HIGH_LEVEL, 0 },
120 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0}, 120 { AU1000_DMA_INT_BASE+5, INTC_INT_HIGH_LEVEL, 0 },
121 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0}, 121 { AU1000_DMA_INT_BASE+6, INTC_INT_HIGH_LEVEL, 0 },
122 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0}, 122 { AU1000_DMA_INT_BASE+7, INTC_INT_HIGH_LEVEL, 0 },
123 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 }, 123 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
124 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 124 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
125 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 125 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
@@ -128,33 +128,33 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
128 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 128 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
129 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 129 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
130 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 }, 130 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
131 { AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0}, 131 { AU1000_IRDA_TX_INT, INTC_INT_HIGH_LEVEL, 0 },
132 { AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0}, 132 { AU1000_IRDA_RX_INT, INTC_INT_HIGH_LEVEL, 0 },
133 { AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 }, 133 { AU1000_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
134 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 }, 134 { AU1000_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
135 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 }, 135 { AU1000_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
136 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 }, 136 { AU1000_ACSYNC_INT, INTC_INT_RISE_EDGE, 0 },
137 { AU1100_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 137 { AU1100_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
138 /*{ AU1000_GPIO215_208_INT, INTC_INT_HIGH_LEVEL, 0},*/ 138 /* { AU1000_GPIO215_208_INT, INTC_INT_HIGH_LEVEL, 0 }, */
139 { AU1100_LCD_INT, INTC_INT_HIGH_LEVEL, 0}, 139 { AU1100_LCD_INT, INTC_INT_HIGH_LEVEL, 0 },
140 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 }, 140 { AU1000_AC97C_INT, INTC_INT_RISE_EDGE, 0 },
141 141
142#elif defined(CONFIG_SOC_AU1550) 142#elif defined(CONFIG_SOC_AU1550)
143 143
144 { AU1550_UART0_INT, INTC_INT_HIGH_LEVEL, 0}, 144 { AU1550_UART0_INT, INTC_INT_HIGH_LEVEL, 0 },
145 { AU1550_PCI_INTA, INTC_INT_LOW_LEVEL, 0 }, 145 { AU1550_PCI_INTA, INTC_INT_LOW_LEVEL, 0 },
146 { AU1550_PCI_INTB, INTC_INT_LOW_LEVEL, 0 }, 146 { AU1550_PCI_INTB, INTC_INT_LOW_LEVEL, 0 },
147 { AU1550_DDMA_INT, INTC_INT_HIGH_LEVEL, 0}, 147 { AU1550_DDMA_INT, INTC_INT_HIGH_LEVEL, 0 },
148 { AU1550_CRYPTO_INT, INTC_INT_HIGH_LEVEL, 0}, 148 { AU1550_CRYPTO_INT, INTC_INT_HIGH_LEVEL, 0 },
149 { AU1550_PCI_INTC, INTC_INT_LOW_LEVEL, 0 }, 149 { AU1550_PCI_INTC, INTC_INT_LOW_LEVEL, 0 },
150 { AU1550_PCI_INTD, INTC_INT_LOW_LEVEL, 0 }, 150 { AU1550_PCI_INTD, INTC_INT_LOW_LEVEL, 0 },
151 { AU1550_PCI_RST_INT, INTC_INT_LOW_LEVEL, 0 }, 151 { AU1550_PCI_RST_INT, INTC_INT_LOW_LEVEL, 0 },
152 { AU1550_UART1_INT, INTC_INT_HIGH_LEVEL, 0}, 152 { AU1550_UART1_INT, INTC_INT_HIGH_LEVEL, 0 },
153 { AU1550_UART3_INT, INTC_INT_HIGH_LEVEL, 0}, 153 { AU1550_UART3_INT, INTC_INT_HIGH_LEVEL, 0 },
154 { AU1550_PSC0_INT, INTC_INT_HIGH_LEVEL, 0}, 154 { AU1550_PSC0_INT, INTC_INT_HIGH_LEVEL, 0 },
155 { AU1550_PSC1_INT, INTC_INT_HIGH_LEVEL, 0}, 155 { AU1550_PSC1_INT, INTC_INT_HIGH_LEVEL, 0 },
156 { AU1550_PSC2_INT, INTC_INT_HIGH_LEVEL, 0}, 156 { AU1550_PSC2_INT, INTC_INT_HIGH_LEVEL, 0 },
157 { AU1550_PSC3_INT, INTC_INT_HIGH_LEVEL, 0}, 157 { AU1550_PSC3_INT, INTC_INT_HIGH_LEVEL, 0 },
158 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 }, 158 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
159 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 159 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
160 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 160 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
@@ -163,26 +163,26 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
163 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 163 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
164 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 164 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
165 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 }, 165 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
166 { AU1550_NAND_INT, INTC_INT_RISE_EDGE, 0}, 166 { AU1550_NAND_INT, INTC_INT_RISE_EDGE, 0 },
167 { AU1550_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 }, 167 { AU1550_USB_DEV_REQ_INT, INTC_INT_HIGH_LEVEL, 0 },
168 { AU1550_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 }, 168 { AU1550_USB_DEV_SUS_INT, INTC_INT_RISE_EDGE, 0 },
169 { AU1550_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 }, 169 { AU1550_USB_HOST_INT, INTC_INT_LOW_LEVEL, 0 },
170 { AU1550_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 170 { AU1550_MAC0_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
171 { AU1550_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0}, 171 { AU1550_MAC1_DMA_INT, INTC_INT_HIGH_LEVEL, 0 },
172 172
173#elif defined(CONFIG_SOC_AU1200) 173#elif defined(CONFIG_SOC_AU1200)
174 174
175 { AU1200_UART0_INT, INTC_INT_HIGH_LEVEL, 0}, 175 { AU1200_UART0_INT, INTC_INT_HIGH_LEVEL, 0 },
176 { AU1200_SWT_INT, INTC_INT_RISE_EDGE, 0 }, 176 { AU1200_SWT_INT, INTC_INT_RISE_EDGE, 0 },
177 { AU1200_SD_INT, INTC_INT_HIGH_LEVEL, 0}, 177 { AU1200_SD_INT, INTC_INT_HIGH_LEVEL, 0 },
178 { AU1200_DDMA_INT, INTC_INT_HIGH_LEVEL, 0}, 178 { AU1200_DDMA_INT, INTC_INT_HIGH_LEVEL, 0 },
179 { AU1200_MAE_BE_INT, INTC_INT_HIGH_LEVEL, 0 }, 179 { AU1200_MAE_BE_INT, INTC_INT_HIGH_LEVEL, 0 },
180 { AU1200_UART1_INT, INTC_INT_HIGH_LEVEL, 0}, 180 { AU1200_UART1_INT, INTC_INT_HIGH_LEVEL, 0 },
181 { AU1200_MAE_FE_INT, INTC_INT_HIGH_LEVEL, 0 }, 181 { AU1200_MAE_FE_INT, INTC_INT_HIGH_LEVEL, 0 },
182 { AU1200_PSC0_INT, INTC_INT_HIGH_LEVEL, 0}, 182 { AU1200_PSC0_INT, INTC_INT_HIGH_LEVEL, 0 },
183 { AU1200_PSC1_INT, INTC_INT_HIGH_LEVEL, 0}, 183 { AU1200_PSC1_INT, INTC_INT_HIGH_LEVEL, 0 },
184 { AU1200_AES_INT, INTC_INT_HIGH_LEVEL, 0}, 184 { AU1200_AES_INT, INTC_INT_HIGH_LEVEL, 0 },
185 { AU1200_CAMERA_INT, INTC_INT_HIGH_LEVEL, 0}, 185 { AU1200_CAMERA_INT, INTC_INT_HIGH_LEVEL, 0 },
186 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 }, 186 { AU1000_TOY_INT, INTC_INT_RISE_EDGE, 0 },
187 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 187 { AU1000_TOY_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
188 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 188 { AU1000_TOY_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
@@ -191,10 +191,10 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
191 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 }, 191 { AU1000_RTC_MATCH0_INT, INTC_INT_RISE_EDGE, 0 },
192 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 }, 192 { AU1000_RTC_MATCH1_INT, INTC_INT_RISE_EDGE, 0 },
193 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 }, 193 { AU1000_RTC_MATCH2_INT, INTC_INT_RISE_EDGE, 0 },
194 { AU1200_NAND_INT, INTC_INT_RISE_EDGE, 0}, 194 { AU1200_NAND_INT, INTC_INT_RISE_EDGE, 0 },
195 { AU1200_USB_INT, INTC_INT_HIGH_LEVEL, 0 }, 195 { AU1200_USB_INT, INTC_INT_HIGH_LEVEL, 0 },
196 { AU1200_LCD_INT, INTC_INT_HIGH_LEVEL, 0}, 196 { AU1200_LCD_INT, INTC_INT_HIGH_LEVEL, 0 },
197 { AU1200_MAE_BOTH_INT, INTC_INT_HIGH_LEVEL, 0}, 197 { AU1200_MAE_BOTH_INT, INTC_INT_HIGH_LEVEL, 0 },
198 198
199#else 199#else
200#error "Error: Unknown Alchemy SOC" 200#error "Error: Unknown Alchemy SOC"
@@ -203,4 +203,3 @@ struct au1xxx_irqmap __initdata au1xxx_ic0_map[] = {
203}; 203};
204 204
205int __initdata au1xxx_ic0_nr_irqs = ARRAY_SIZE(au1xxx_ic0_map); 205int __initdata au1xxx_ic0_nr_irqs = ARRAY_SIZE(au1xxx_ic0_map);
206
diff --git a/arch/mips/au1000/common/clocks.c b/arch/mips/au1000/common/clocks.c
index 3ce6cace0eb0..46f8ee0e2657 100644
--- a/arch/mips/au1000/common/clocks.c
+++ b/arch/mips/au1000/common/clocks.c
@@ -1,10 +1,9 @@
1/* 1/*
2 * BRIEF MODULE DESCRIPTION 2 * BRIEF MODULE DESCRIPTION
3 * Simple Au1000 clocks routines. 3 * Simple Au1xx0 clocks routines.
4 * 4 *
5 * Copyright 2001 MontaVista Software Inc. 5 * Copyright 2001, 2008 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. 6 * Author: MontaVista Software, Inc. <source@mvista.com>
7 * ppopov@mvista.com or source@mvista.com
8 * 7 *
9 * This program is free software; you can redistribute it and/or modify it 8 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the 9 * under the terms of the GNU General Public License as published by the
@@ -30,8 +29,8 @@
30#include <linux/module.h> 29#include <linux/module.h>
31#include <asm/mach-au1x00/au1000.h> 30#include <asm/mach-au1x00/au1000.h>
32 31
33static unsigned int au1x00_clock; // Hz 32static unsigned int au1x00_clock; /* Hz */
34static unsigned int lcd_clock; // KHz 33static unsigned int lcd_clock; /* KHz */
35static unsigned long uart_baud_base; 34static unsigned long uart_baud_base;
36 35
37/* 36/*
@@ -47,8 +46,6 @@ unsigned int get_au1x00_speed(void)
47 return au1x00_clock; 46 return au1x00_clock;
48} 47}
49 48
50
51
52/* 49/*
53 * The UART baud base is not known at compile time ... if 50 * The UART baud base is not known at compile time ... if
54 * we want to be able to use the same code on different 51 * we want to be able to use the same code on different
@@ -73,24 +70,23 @@ void set_au1x00_uart_baud_base(unsigned long new_baud_base)
73void set_au1x00_lcd_clock(void) 70void set_au1x00_lcd_clock(void)
74{ 71{
75 unsigned int static_cfg0; 72 unsigned int static_cfg0;
76 unsigned int sys_busclk = 73 unsigned int sys_busclk = (get_au1x00_speed() / 1000) /
77 (get_au1x00_speed()/1000) / 74 ((int)(au_readl(SYS_POWERCTRL) & 0x03) + 2);
78 ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2);
79 75
80 static_cfg0 = au_readl(MEM_STCFG0); 76 static_cfg0 = au_readl(MEM_STCFG0);
81 77
82 if (static_cfg0 & (1<<11)) 78 if (static_cfg0 & (1 << 11))
83 lcd_clock = sys_busclk / 5; /* note: BCLK switching fails with D5 */ 79 lcd_clock = sys_busclk / 5; /* note: BCLK switching fails with D5 */
84 else 80 else
85 lcd_clock = sys_busclk / 4; 81 lcd_clock = sys_busclk / 4;
86 82
87 if (lcd_clock > 50000) /* Epson MAX */ 83 if (lcd_clock > 50000) /* Epson MAX */
88 printk("warning: LCD clock too high (%d KHz)\n", lcd_clock); 84 printk(KERN_WARNING "warning: LCD clock too high (%u KHz)\n",
85 lcd_clock);
89} 86}
90 87
91unsigned int get_au1x00_lcd_clock(void) 88unsigned int get_au1x00_lcd_clock(void)
92{ 89{
93 return lcd_clock; 90 return lcd_clock;
94} 91}
95
96EXPORT_SYMBOL(get_au1x00_lcd_clock); 92EXPORT_SYMBOL(get_au1x00_lcd_clock);
diff --git a/arch/mips/au1000/common/cputable.c b/arch/mips/au1000/common/cputable.c
index 8c93a05d7382..ba6430bc2d03 100644
--- a/arch/mips/au1000/common/cputable.c
+++ b/arch/mips/au1000/common/cputable.c
@@ -14,7 +14,7 @@
14 14
15#include <asm/mach-au1x00/au1000.h> 15#include <asm/mach-au1x00/au1000.h>
16 16
17struct cpu_spec* cur_cpu_spec[NR_CPUS]; 17struct cpu_spec *cur_cpu_spec[NR_CPUS];
18 18
19/* With some thought, we can probably use the mask to reduce the 19/* With some thought, we can probably use the mask to reduce the
20 * size of the table. 20 * size of the table.
@@ -39,8 +39,7 @@ struct cpu_spec cpu_specs[] = {
39 { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0, 0 } 39 { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0, 0 }
40}; 40};
41 41
42void 42void set_cpuspec(void)
43set_cpuspec(void)
44{ 43{
45 struct cpu_spec *sp; 44 struct cpu_spec *sp;
46 u32 prid; 45 u32 prid;
diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
index 53377dfc0640..42d555236de1 100644
--- a/arch/mips/au1000/common/dbdma.c
+++ b/arch/mips/au1000/common/dbdma.c
@@ -53,12 +53,11 @@
53 */ 53 */
54static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock); 54static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock);
55 55
56/* I couldn't find a macro that did this...... 56/* I couldn't find a macro that did this... */
57*/
58#define ALIGN_ADDR(x, a) ((((u32)(x)) + (a-1)) & ~(a-1)) 57#define ALIGN_ADDR(x, a) ((((u32)(x)) + (a-1)) & ~(a-1))
59 58
60static dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE; 59static dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE;
61static int dbdma_initialized=0; 60static int dbdma_initialized;
62static void au1xxx_dbdma_init(void); 61static void au1xxx_dbdma_init(void);
63 62
64static dbdev_tab_t dbdev_tab[] = { 63static dbdev_tab_t dbdev_tab[] = {
@@ -149,7 +148,7 @@ static dbdev_tab_t dbdev_tab[] = {
149 148
150 { DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 }, 149 { DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
151 150
152#endif // CONFIG_SOC_AU1200 151#endif /* CONFIG_SOC_AU1200 */
153 152
154 { DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 }, 153 { DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
155 { DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 }, 154 { DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
@@ -177,8 +176,7 @@ static dbdev_tab_t dbdev_tab[] = {
177 176
178static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS]; 177static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS];
179 178
180static dbdev_tab_t * 179static dbdev_tab_t *find_dbdev_id(u32 id)
181find_dbdev_id(u32 id)
182{ 180{
183 int i; 181 int i;
184 dbdev_tab_t *p; 182 dbdev_tab_t *p;
@@ -190,29 +188,27 @@ find_dbdev_id(u32 id)
190 return NULL; 188 return NULL;
191} 189}
192 190
193void * au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp) 191void *au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp)
194{ 192{
195 return phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 193 return phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
196} 194}
197EXPORT_SYMBOL(au1xxx_ddma_get_nextptr_virt); 195EXPORT_SYMBOL(au1xxx_ddma_get_nextptr_virt);
198 196
199u32 197u32 au1xxx_ddma_add_device(dbdev_tab_t *dev)
200au1xxx_ddma_add_device(dbdev_tab_t *dev)
201{ 198{
202 u32 ret = 0; 199 u32 ret = 0;
203 dbdev_tab_t *p=NULL; 200 dbdev_tab_t *p;
204 static u16 new_id=0x1000; 201 static u16 new_id = 0x1000;
205 202
206 p = find_dbdev_id(~0); 203 p = find_dbdev_id(~0);
207 if ( NULL != p ) 204 if (NULL != p) {
208 {
209 memcpy(p, dev, sizeof(dbdev_tab_t)); 205 memcpy(p, dev, sizeof(dbdev_tab_t));
210 p->dev_id = DSCR_DEV2CUSTOM_ID(new_id, dev->dev_id); 206 p->dev_id = DSCR_DEV2CUSTOM_ID(new_id, dev->dev_id);
211 ret = p->dev_id; 207 ret = p->dev_id;
212 new_id++; 208 new_id++;
213#if 0 209#if 0
214 printk("add_device: id:%x flags:%x padd:%x\n", 210 printk(KERN_DEBUG "add_device: id:%x flags:%x padd:%x\n",
215 p->dev_id, p->dev_flags, p->dev_physaddr ); 211 p->dev_id, p->dev_flags, p->dev_physaddr);
216#endif 212#endif
217 } 213 }
218 214
@@ -220,10 +216,8 @@ au1xxx_ddma_add_device(dbdev_tab_t *dev)
220} 216}
221EXPORT_SYMBOL(au1xxx_ddma_add_device); 217EXPORT_SYMBOL(au1xxx_ddma_add_device);
222 218
223/* Allocate a channel and return a non-zero descriptor if successful. 219/* Allocate a channel and return a non-zero descriptor if successful. */
224*/ 220u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
225u32
226au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
227 void (*callback)(int, void *), void *callparam) 221 void (*callback)(int, void *), void *callparam)
228{ 222{
229 unsigned long flags; 223 unsigned long flags;
@@ -234,7 +228,8 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
234 chan_tab_t *ctp; 228 chan_tab_t *ctp;
235 au1x_dma_chan_t *cp; 229 au1x_dma_chan_t *cp;
236 230
237 /* We do the intialization on the first channel allocation. 231 /*
232 * We do the intialization on the first channel allocation.
238 * We have to wait because of the interrupt handler initialization 233 * We have to wait because of the interrupt handler initialization
239 * which can't be done successfully during board set up. 234 * which can't be done successfully during board set up.
240 */ 235 */
@@ -242,16 +237,17 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
242 au1xxx_dbdma_init(); 237 au1xxx_dbdma_init();
243 dbdma_initialized = 1; 238 dbdma_initialized = 1;
244 239
245 if ((stp = find_dbdev_id(srcid)) == NULL) 240 stp = find_dbdev_id(srcid);
241 if (stp == NULL)
246 return 0; 242 return 0;
247 if ((dtp = find_dbdev_id(destid)) == NULL) 243 dtp = find_dbdev_id(destid);
244 if (dtp == NULL)
248 return 0; 245 return 0;
249 246
250 used = 0; 247 used = 0;
251 rv = 0; 248 rv = 0;
252 249
253 /* Check to see if we can get both channels. 250 /* Check to see if we can get both channels. */
254 */
255 spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags); 251 spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags);
256 if (!(stp->dev_flags & DEV_FLAGS_INUSE) || 252 if (!(stp->dev_flags & DEV_FLAGS_INUSE) ||
257 (stp->dev_flags & DEV_FLAGS_ANYUSE)) { 253 (stp->dev_flags & DEV_FLAGS_ANYUSE)) {
@@ -261,35 +257,30 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
261 (dtp->dev_flags & DEV_FLAGS_ANYUSE)) { 257 (dtp->dev_flags & DEV_FLAGS_ANYUSE)) {
262 /* Got destination */ 258 /* Got destination */
263 dtp->dev_flags |= DEV_FLAGS_INUSE; 259 dtp->dev_flags |= DEV_FLAGS_INUSE;
264 } 260 } else {
265 else { 261 /* Can't get dest. Release src. */
266 /* Can't get dest. Release src.
267 */
268 stp->dev_flags &= ~DEV_FLAGS_INUSE; 262 stp->dev_flags &= ~DEV_FLAGS_INUSE;
269 used++; 263 used++;
270 } 264 }
271 } 265 } else
272 else {
273 used++; 266 used++;
274 }
275 spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags); 267 spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags);
276 268
277 if (!used) { 269 if (!used) {
278 /* Let's see if we can allocate a channel for it. 270 /* Let's see if we can allocate a channel for it. */
279 */
280 ctp = NULL; 271 ctp = NULL;
281 chan = 0; 272 chan = 0;
282 spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags); 273 spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags);
283 for (i=0; i<NUM_DBDMA_CHANS; i++) { 274 for (i = 0; i < NUM_DBDMA_CHANS; i++)
284 if (chan_tab_ptr[i] == NULL) { 275 if (chan_tab_ptr[i] == NULL) {
285 /* If kmalloc fails, it is caught below same 276 /*
277 * If kmalloc fails, it is caught below same
286 * as a channel not available. 278 * as a channel not available.
287 */ 279 */
288 ctp = kmalloc(sizeof(chan_tab_t), GFP_ATOMIC); 280 ctp = kmalloc(sizeof(chan_tab_t), GFP_ATOMIC);
289 chan_tab_ptr[i] = ctp; 281 chan_tab_ptr[i] = ctp;
290 break; 282 break;
291 } 283 }
292 }
293 spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags); 284 spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags);
294 285
295 if (ctp != NULL) { 286 if (ctp != NULL) {
@@ -304,8 +295,7 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
304 ctp->chan_callback = callback; 295 ctp->chan_callback = callback;
305 ctp->chan_callparam = callparam; 296 ctp->chan_callparam = callparam;
306 297
307 /* Initialize channel configuration. 298 /* Initialize channel configuration. */
308 */
309 i = 0; 299 i = 0;
310 if (stp->dev_intlevel) 300 if (stp->dev_intlevel)
311 i |= DDMA_CFG_SED; 301 i |= DDMA_CFG_SED;
@@ -326,8 +316,7 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
326 * operations. 316 * operations.
327 */ 317 */
328 rv = (u32)(&chan_tab_ptr[chan]); 318 rv = (u32)(&chan_tab_ptr[chan]);
329 } 319 } else {
330 else {
331 /* Release devices */ 320 /* Release devices */
332 stp->dev_flags &= ~DEV_FLAGS_INUSE; 321 stp->dev_flags &= ~DEV_FLAGS_INUSE;
333 dtp->dev_flags &= ~DEV_FLAGS_INUSE; 322 dtp->dev_flags &= ~DEV_FLAGS_INUSE;
@@ -337,11 +326,11 @@ au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
337} 326}
338EXPORT_SYMBOL(au1xxx_dbdma_chan_alloc); 327EXPORT_SYMBOL(au1xxx_dbdma_chan_alloc);
339 328
340/* Set the device width if source or destination is a FIFO. 329/*
330 * Set the device width if source or destination is a FIFO.
341 * Should be 8, 16, or 32 bits. 331 * Should be 8, 16, or 32 bits.
342 */ 332 */
343u32 333u32 au1xxx_dbdma_set_devwidth(u32 chanid, int bits)
344au1xxx_dbdma_set_devwidth(u32 chanid, int bits)
345{ 334{
346 u32 rv; 335 u32 rv;
347 chan_tab_t *ctp; 336 chan_tab_t *ctp;
@@ -365,10 +354,8 @@ au1xxx_dbdma_set_devwidth(u32 chanid, int bits)
365} 354}
366EXPORT_SYMBOL(au1xxx_dbdma_set_devwidth); 355EXPORT_SYMBOL(au1xxx_dbdma_set_devwidth);
367 356
368/* Allocate a descriptor ring, initializing as much as possible. 357/* Allocate a descriptor ring, initializing as much as possible. */
369*/ 358u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
370u32
371au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
372{ 359{
373 int i; 360 int i;
374 u32 desc_base, srcid, destid; 361 u32 desc_base, srcid, destid;
@@ -378,43 +365,45 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
378 dbdev_tab_t *stp, *dtp; 365 dbdev_tab_t *stp, *dtp;
379 au1x_ddma_desc_t *dp; 366 au1x_ddma_desc_t *dp;
380 367
381 /* I guess we could check this to be within the 368 /*
369 * I guess we could check this to be within the
382 * range of the table...... 370 * range of the table......
383 */ 371 */
384 ctp = *((chan_tab_t **)chanid); 372 ctp = *((chan_tab_t **)chanid);
385 stp = ctp->chan_src; 373 stp = ctp->chan_src;
386 dtp = ctp->chan_dest; 374 dtp = ctp->chan_dest;
387 375
388 /* The descriptors must be 32-byte aligned. There is a 376 /*
377 * The descriptors must be 32-byte aligned. There is a
389 * possibility the allocation will give us such an address, 378 * possibility the allocation will give us such an address,
390 * and if we try that first we are likely to not waste larger 379 * and if we try that first we are likely to not waste larger
391 * slabs of memory. 380 * slabs of memory.
392 */ 381 */
393 desc_base = (u32)kmalloc(entries * sizeof(au1x_ddma_desc_t), 382 desc_base = (u32)kmalloc(entries * sizeof(au1x_ddma_desc_t),
394 GFP_KERNEL|GFP_DMA); 383 GFP_KERNEL|GFP_DMA);
395 if (desc_base == 0) 384 if (desc_base == 0)
396 return 0; 385 return 0;
397 386
398 if (desc_base & 0x1f) { 387 if (desc_base & 0x1f) {
399 /* Lost....do it again, allocate extra, and round 388 /*
389 * Lost....do it again, allocate extra, and round
400 * the address base. 390 * the address base.
401 */ 391 */
402 kfree((const void *)desc_base); 392 kfree((const void *)desc_base);
403 i = entries * sizeof(au1x_ddma_desc_t); 393 i = entries * sizeof(au1x_ddma_desc_t);
404 i += (sizeof(au1x_ddma_desc_t) - 1); 394 i += (sizeof(au1x_ddma_desc_t) - 1);
405 if ((desc_base = (u32)kmalloc(i, GFP_KERNEL|GFP_DMA)) == 0) 395 desc_base = (u32)kmalloc(i, GFP_KERNEL|GFP_DMA);
396 if (desc_base == 0)
406 return 0; 397 return 0;
407 398
408 desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t)); 399 desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t));
409 } 400 }
410 dp = (au1x_ddma_desc_t *)desc_base; 401 dp = (au1x_ddma_desc_t *)desc_base;
411 402
412 /* Keep track of the base descriptor. 403 /* Keep track of the base descriptor. */
413 */
414 ctp->chan_desc_base = dp; 404 ctp->chan_desc_base = dp;
415 405
416 /* Initialize the rings with as much information as we know. 406 /* Initialize the rings with as much information as we know. */
417 */
418 srcid = stp->dev_id; 407 srcid = stp->dev_id;
419 destid = dtp->dev_id; 408 destid = dtp->dev_id;
420 409
@@ -426,11 +415,12 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
426 cmd0 |= DSCR_CMD0_IE | DSCR_CMD0_CV; 415 cmd0 |= DSCR_CMD0_IE | DSCR_CMD0_CV;
427 cmd0 |= DSCR_CMD0_ST(DSCR_CMD0_ST_NOCHANGE); 416 cmd0 |= DSCR_CMD0_ST(DSCR_CMD0_ST_NOCHANGE);
428 417
429 /* is it mem to mem transfer? */ 418 /* Is it mem to mem transfer? */
430 if(((DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_THROTTLE) || (DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_ALWAYS)) && 419 if (((DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_THROTTLE) ||
431 ((DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_THROTTLE) || (DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_ALWAYS))) { 420 (DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_ALWAYS)) &&
432 cmd0 |= DSCR_CMD0_MEM; 421 ((DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_THROTTLE) ||
433 } 422 (DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_ALWAYS)))
423 cmd0 |= DSCR_CMD0_MEM;
434 424
435 switch (stp->dev_devwidth) { 425 switch (stp->dev_devwidth) {
436 case 8: 426 case 8:
@@ -458,15 +448,17 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
458 break; 448 break;
459 } 449 }
460 450
461 /* If the device is marked as an in/out FIFO, ensure it is 451 /*
452 * If the device is marked as an in/out FIFO, ensure it is
462 * set non-coherent. 453 * set non-coherent.
463 */ 454 */
464 if (stp->dev_flags & DEV_FLAGS_IN) 455 if (stp->dev_flags & DEV_FLAGS_IN)
465 cmd0 |= DSCR_CMD0_SN; /* Source in fifo */ 456 cmd0 |= DSCR_CMD0_SN; /* Source in FIFO */
466 if (dtp->dev_flags & DEV_FLAGS_OUT) 457 if (dtp->dev_flags & DEV_FLAGS_OUT)
467 cmd0 |= DSCR_CMD0_DN; /* Destination out fifo */ 458 cmd0 |= DSCR_CMD0_DN; /* Destination out FIFO */
468 459
469 /* Set up source1. For now, assume no stride and increment. 460 /*
461 * Set up source1. For now, assume no stride and increment.
470 * A channel attribute update can change this later. 462 * A channel attribute update can change this later.
471 */ 463 */
472 switch (stp->dev_tsize) { 464 switch (stp->dev_tsize) {
@@ -485,19 +477,19 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
485 break; 477 break;
486 } 478 }
487 479
488 /* If source input is fifo, set static address. 480 /* If source input is FIFO, set static address. */
489 */
490 if (stp->dev_flags & DEV_FLAGS_IN) { 481 if (stp->dev_flags & DEV_FLAGS_IN) {
491 if ( stp->dev_flags & DEV_FLAGS_BURSTABLE ) 482 if (stp->dev_flags & DEV_FLAGS_BURSTABLE)
492 src1 |= DSCR_SRC1_SAM(DSCR_xAM_BURST); 483 src1 |= DSCR_SRC1_SAM(DSCR_xAM_BURST);
493 else 484 else
494 src1 |= DSCR_SRC1_SAM(DSCR_xAM_STATIC); 485 src1 |= DSCR_SRC1_SAM(DSCR_xAM_STATIC);
495
496 } 486 }
487
497 if (stp->dev_physaddr) 488 if (stp->dev_physaddr)
498 src0 = stp->dev_physaddr; 489 src0 = stp->dev_physaddr;
499 490
500 /* Set up dest1. For now, assume no stride and increment. 491 /*
492 * Set up dest1. For now, assume no stride and increment.
501 * A channel attribute update can change this later. 493 * A channel attribute update can change this later.
502 */ 494 */
503 switch (dtp->dev_tsize) { 495 switch (dtp->dev_tsize) {
@@ -516,22 +508,24 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
516 break; 508 break;
517 } 509 }
518 510
519 /* If destination output is fifo, set static address. 511 /* If destination output is FIFO, set static address. */
520 */
521 if (dtp->dev_flags & DEV_FLAGS_OUT) { 512 if (dtp->dev_flags & DEV_FLAGS_OUT) {
522 if ( dtp->dev_flags & DEV_FLAGS_BURSTABLE ) 513 if (dtp->dev_flags & DEV_FLAGS_BURSTABLE)
523 dest1 |= DSCR_DEST1_DAM(DSCR_xAM_BURST); 514 dest1 |= DSCR_DEST1_DAM(DSCR_xAM_BURST);
524 else 515 else
525 dest1 |= DSCR_DEST1_DAM(DSCR_xAM_STATIC); 516 dest1 |= DSCR_DEST1_DAM(DSCR_xAM_STATIC);
526 } 517 }
518
527 if (dtp->dev_physaddr) 519 if (dtp->dev_physaddr)
528 dest0 = dtp->dev_physaddr; 520 dest0 = dtp->dev_physaddr;
529 521
530#if 0 522#if 0
531 printk("did:%x sid:%x cmd0:%x cmd1:%x source0:%x source1:%x dest0:%x dest1:%x\n", 523 printk(KERN_DEBUG "did:%x sid:%x cmd0:%x cmd1:%x source0:%x "
532 dtp->dev_id, stp->dev_id, cmd0, cmd1, src0, src1, dest0, dest1 ); 524 "source1:%x dest0:%x dest1:%x\n",
525 dtp->dev_id, stp->dev_id, cmd0, cmd1, src0,
526 src1, dest0, dest1);
533#endif 527#endif
534 for (i=0; i<entries; i++) { 528 for (i = 0; i < entries; i++) {
535 dp->dscr_cmd0 = cmd0; 529 dp->dscr_cmd0 = cmd0;
536 dp->dscr_cmd1 = cmd1; 530 dp->dscr_cmd1 = cmd1;
537 dp->dscr_source0 = src0; 531 dp->dscr_source0 = src0;
@@ -545,49 +539,49 @@ au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
545 dp++; 539 dp++;
546 } 540 }
547 541
548 /* Make last descrptor point to the first. 542 /* Make last descrptor point to the first. */
549 */
550 dp--; 543 dp--;
551 dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(ctp->chan_desc_base)); 544 dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(ctp->chan_desc_base));
552 ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base; 545 ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base;
553 546
554 return (u32)(ctp->chan_desc_base); 547 return (u32)ctp->chan_desc_base;
555} 548}
556EXPORT_SYMBOL(au1xxx_dbdma_ring_alloc); 549EXPORT_SYMBOL(au1xxx_dbdma_ring_alloc);
557 550
558/* Put a source buffer into the DMA ring. 551/*
552 * Put a source buffer into the DMA ring.
559 * This updates the source pointer and byte count. Normally used 553 * This updates the source pointer and byte count. Normally used
560 * for memory to fifo transfers. 554 * for memory to fifo transfers.
561 */ 555 */
562u32 556u32 _au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags)
563_au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags)
564{ 557{
565 chan_tab_t *ctp; 558 chan_tab_t *ctp;
566 au1x_ddma_desc_t *dp; 559 au1x_ddma_desc_t *dp;
567 560
568 /* I guess we could check this to be within the 561 /*
562 * I guess we could check this to be within the
569 * range of the table...... 563 * range of the table......
570 */ 564 */
571 ctp = *((chan_tab_t **)chanid); 565 ctp = *(chan_tab_t **)chanid;
572 566
573 /* We should have multiple callers for a particular channel, 567 /*
568 * We should have multiple callers for a particular channel,
574 * an interrupt doesn't affect this pointer nor the descriptor, 569 * an interrupt doesn't affect this pointer nor the descriptor,
575 * so no locking should be needed. 570 * so no locking should be needed.
576 */ 571 */
577 dp = ctp->put_ptr; 572 dp = ctp->put_ptr;
578 573
579 /* If the descriptor is valid, we are way ahead of the DMA 574 /*
575 * If the descriptor is valid, we are way ahead of the DMA
580 * engine, so just return an error condition. 576 * engine, so just return an error condition.
581 */ 577 */
582 if (dp->dscr_cmd0 & DSCR_CMD0_V) { 578 if (dp->dscr_cmd0 & DSCR_CMD0_V)
583 return 0; 579 return 0;
584 }
585 580
586 /* Load up buffer address and byte count. 581 /* Load up buffer address and byte count. */
587 */
588 dp->dscr_source0 = virt_to_phys(buf); 582 dp->dscr_source0 = virt_to_phys(buf);
589 dp->dscr_cmd1 = nbytes; 583 dp->dscr_cmd1 = nbytes;
590 /* Check flags */ 584 /* Check flags */
591 if (flags & DDMA_FLAGS_IE) 585 if (flags & DDMA_FLAGS_IE)
592 dp->dscr_cmd0 |= DSCR_CMD0_IE; 586 dp->dscr_cmd0 |= DSCR_CMD0_IE;
593 if (flags & DDMA_FLAGS_NOIE) 587 if (flags & DDMA_FLAGS_NOIE)
@@ -595,23 +589,21 @@ _au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags)
595 589
596 /* 590 /*
597 * There is an errata on the Au1200/Au1550 parts that could result 591 * There is an errata on the Au1200/Au1550 parts that could result
598 * in "stale" data being DMA'd. It has to do with the snoop logic on 592 * in "stale" data being DMA'ed. It has to do with the snoop logic on
599 * the dache eviction buffer. NONCOHERENT_IO is on by default for 593 * the cache eviction buffer. DMA_NONCOHERENT is on by default for
600 * these parts. If it is fixedin the future, these dma_cache_inv will 594 * these parts. If it is fixed in the future, these dma_cache_inv will
601 * just be nothing more than empty macros. See io.h. 595 * just be nothing more than empty macros. See io.h.
602 * */ 596 */
603 dma_cache_wback_inv((unsigned long)buf, nbytes); 597 dma_cache_wback_inv((unsigned long)buf, nbytes);
604 dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */ 598 dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */
605 au_sync(); 599 au_sync();
606 dma_cache_wback_inv((unsigned long)dp, sizeof(dp)); 600 dma_cache_wback_inv((unsigned long)dp, sizeof(dp));
607 ctp->chan_ptr->ddma_dbell = 0; 601 ctp->chan_ptr->ddma_dbell = 0;
608 602
609 /* Get next descriptor pointer. 603 /* Get next descriptor pointer. */
610 */
611 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 604 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
612 605
613 /* return something not zero. 606 /* Return something non-zero. */
614 */
615 return nbytes; 607 return nbytes;
616} 608}
617EXPORT_SYMBOL(_au1xxx_dbdma_put_source); 609EXPORT_SYMBOL(_au1xxx_dbdma_put_source);
@@ -654,81 +646,77 @@ _au1xxx_dbdma_put_dest(u32 chanid, void *buf, int nbytes, u32 flags)
654 dp->dscr_dest0 = virt_to_phys(buf); 646 dp->dscr_dest0 = virt_to_phys(buf);
655 dp->dscr_cmd1 = nbytes; 647 dp->dscr_cmd1 = nbytes;
656#if 0 648#if 0
657 printk("cmd0:%x cmd1:%x source0:%x source1:%x dest0:%x dest1:%x\n", 649 printk(KERN_DEBUG "cmd0:%x cmd1:%x source0:%x source1:%x dest0:%x dest1:%x\n",
658 dp->dscr_cmd0, dp->dscr_cmd1, dp->dscr_source0, 650 dp->dscr_cmd0, dp->dscr_cmd1, dp->dscr_source0,
659 dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1 ); 651 dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1);
660#endif 652#endif
661 /* 653 /*
662 * There is an errata on the Au1200/Au1550 parts that could result in 654 * There is an errata on the Au1200/Au1550 parts that could result in
663 * "stale" data being DMA'd. It has to do with the snoop logic on the 655 * "stale" data being DMA'ed. It has to do with the snoop logic on the
664 * dache eviction buffer. NONCOHERENT_IO is on by default for these 656 * cache eviction buffer. DMA_NONCOHERENT is on by default for these
665 * parts. If it is fixedin the future, these dma_cache_inv will just 657 * parts. If it is fixed in the future, these dma_cache_inv will just
666 * be nothing more than empty macros. See io.h. 658 * be nothing more than empty macros. See io.h.
667 * */ 659 */
668 dma_cache_inv((unsigned long)buf, nbytes); 660 dma_cache_inv((unsigned long)buf, nbytes);
669 dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */ 661 dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */
670 au_sync(); 662 au_sync();
671 dma_cache_wback_inv((unsigned long)dp, sizeof(dp)); 663 dma_cache_wback_inv((unsigned long)dp, sizeof(dp));
672 ctp->chan_ptr->ddma_dbell = 0; 664 ctp->chan_ptr->ddma_dbell = 0;
673 665
674 /* Get next descriptor pointer. 666 /* Get next descriptor pointer. */
675 */
676 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 667 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
677 668
678 /* return something not zero. 669 /* Return something non-zero. */
679 */
680 return nbytes; 670 return nbytes;
681} 671}
682EXPORT_SYMBOL(_au1xxx_dbdma_put_dest); 672EXPORT_SYMBOL(_au1xxx_dbdma_put_dest);
683 673
684/* Get a destination buffer into the DMA ring. 674/*
675 * Get a destination buffer into the DMA ring.
685 * Normally used to get a full buffer from the ring during fifo 676 * Normally used to get a full buffer from the ring during fifo
686 * to memory transfers. This does not set the valid bit, you will 677 * to memory transfers. This does not set the valid bit, you will
687 * have to put another destination buffer to keep the DMA going. 678 * have to put another destination buffer to keep the DMA going.
688 */ 679 */
689u32 680u32 au1xxx_dbdma_get_dest(u32 chanid, void **buf, int *nbytes)
690au1xxx_dbdma_get_dest(u32 chanid, void **buf, int *nbytes)
691{ 681{
692 chan_tab_t *ctp; 682 chan_tab_t *ctp;
693 au1x_ddma_desc_t *dp; 683 au1x_ddma_desc_t *dp;
694 u32 rv; 684 u32 rv;
695 685
696 /* I guess we could check this to be within the 686 /*
687 * I guess we could check this to be within the
697 * range of the table...... 688 * range of the table......
698 */ 689 */
699 ctp = *((chan_tab_t **)chanid); 690 ctp = *((chan_tab_t **)chanid);
700 691
701 /* We should have multiple callers for a particular channel, 692 /*
693 * We should have multiple callers for a particular channel,
702 * an interrupt doesn't affect this pointer nor the descriptor, 694 * an interrupt doesn't affect this pointer nor the descriptor,
703 * so no locking should be needed. 695 * so no locking should be needed.
704 */ 696 */
705 dp = ctp->get_ptr; 697 dp = ctp->get_ptr;
706 698
707 /* If the descriptor is valid, we are way ahead of the DMA 699 /*
700 * If the descriptor is valid, we are way ahead of the DMA
708 * engine, so just return an error condition. 701 * engine, so just return an error condition.
709 */ 702 */
710 if (dp->dscr_cmd0 & DSCR_CMD0_V) 703 if (dp->dscr_cmd0 & DSCR_CMD0_V)
711 return 0; 704 return 0;
712 705
713 /* Return buffer address and byte count. 706 /* Return buffer address and byte count. */
714 */
715 *buf = (void *)(phys_to_virt(dp->dscr_dest0)); 707 *buf = (void *)(phys_to_virt(dp->dscr_dest0));
716 *nbytes = dp->dscr_cmd1; 708 *nbytes = dp->dscr_cmd1;
717 rv = dp->dscr_stat; 709 rv = dp->dscr_stat;
718 710
719 /* Get next descriptor pointer. 711 /* Get next descriptor pointer. */
720 */
721 ctp->get_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 712 ctp->get_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
722 713
723 /* return something not zero. 714 /* Return something non-zero. */
724 */
725 return rv; 715 return rv;
726} 716}
727
728EXPORT_SYMBOL_GPL(au1xxx_dbdma_get_dest); 717EXPORT_SYMBOL_GPL(au1xxx_dbdma_get_dest);
729 718
730void 719void au1xxx_dbdma_stop(u32 chanid)
731au1xxx_dbdma_stop(u32 chanid)
732{ 720{
733 chan_tab_t *ctp; 721 chan_tab_t *ctp;
734 au1x_dma_chan_t *cp; 722 au1x_dma_chan_t *cp;
@@ -743,7 +731,7 @@ au1xxx_dbdma_stop(u32 chanid)
743 udelay(1); 731 udelay(1);
744 halt_timeout++; 732 halt_timeout++;
745 if (halt_timeout > 100) { 733 if (halt_timeout > 100) {
746 printk("warning: DMA channel won't halt\n"); 734 printk(KERN_WARNING "warning: DMA channel won't halt\n");
747 break; 735 break;
748 } 736 }
749 } 737 }
@@ -753,12 +741,12 @@ au1xxx_dbdma_stop(u32 chanid)
753} 741}
754EXPORT_SYMBOL(au1xxx_dbdma_stop); 742EXPORT_SYMBOL(au1xxx_dbdma_stop);
755 743
756/* Start using the current descriptor pointer. If the dbdma encounters 744/*
757 * a not valid descriptor, it will stop. In this case, we can just 745 * Start using the current descriptor pointer. If the DBDMA encounters
746 * a non-valid descriptor, it will stop. In this case, we can just
758 * continue by adding a buffer to the list and starting again. 747 * continue by adding a buffer to the list and starting again.
759 */ 748 */
760void 749void au1xxx_dbdma_start(u32 chanid)
761au1xxx_dbdma_start(u32 chanid)
762{ 750{
763 chan_tab_t *ctp; 751 chan_tab_t *ctp;
764 au1x_dma_chan_t *cp; 752 au1x_dma_chan_t *cp;
@@ -773,8 +761,7 @@ au1xxx_dbdma_start(u32 chanid)
773} 761}
774EXPORT_SYMBOL(au1xxx_dbdma_start); 762EXPORT_SYMBOL(au1xxx_dbdma_start);
775 763
776void 764void au1xxx_dbdma_reset(u32 chanid)
777au1xxx_dbdma_reset(u32 chanid)
778{ 765{
779 chan_tab_t *ctp; 766 chan_tab_t *ctp;
780 au1x_ddma_desc_t *dp; 767 au1x_ddma_desc_t *dp;
@@ -784,14 +771,14 @@ au1xxx_dbdma_reset(u32 chanid)
784 ctp = *((chan_tab_t **)chanid); 771 ctp = *((chan_tab_t **)chanid);
785 ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base; 772 ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base;
786 773
787 /* Run through the descriptors and reset the valid indicator. 774 /* Run through the descriptors and reset the valid indicator. */
788 */
789 dp = ctp->chan_desc_base; 775 dp = ctp->chan_desc_base;
790 776
791 do { 777 do {
792 dp->dscr_cmd0 &= ~DSCR_CMD0_V; 778 dp->dscr_cmd0 &= ~DSCR_CMD0_V;
793 /* reset our SW status -- this is used to determine 779 /*
794 * if a descriptor is in use by upper level SW. Since 780 * Reset our software status -- this is used to determine
781 * if a descriptor is in use by upper level software. Since
795 * posting can reset 'V' bit. 782 * posting can reset 'V' bit.
796 */ 783 */
797 dp->sw_status = 0; 784 dp->sw_status = 0;
@@ -800,8 +787,7 @@ au1xxx_dbdma_reset(u32 chanid)
800} 787}
801EXPORT_SYMBOL(au1xxx_dbdma_reset); 788EXPORT_SYMBOL(au1xxx_dbdma_reset);
802 789
803u32 790u32 au1xxx_get_dma_residue(u32 chanid)
804au1xxx_get_dma_residue(u32 chanid)
805{ 791{
806 chan_tab_t *ctp; 792 chan_tab_t *ctp;
807 au1x_dma_chan_t *cp; 793 au1x_dma_chan_t *cp;
@@ -810,18 +796,15 @@ au1xxx_get_dma_residue(u32 chanid)
810 ctp = *((chan_tab_t **)chanid); 796 ctp = *((chan_tab_t **)chanid);
811 cp = ctp->chan_ptr; 797 cp = ctp->chan_ptr;
812 798
813 /* This is only valid if the channel is stopped. 799 /* This is only valid if the channel is stopped. */
814 */
815 rv = cp->ddma_bytecnt; 800 rv = cp->ddma_bytecnt;
816 au_sync(); 801 au_sync();
817 802
818 return rv; 803 return rv;
819} 804}
820
821EXPORT_SYMBOL_GPL(au1xxx_get_dma_residue); 805EXPORT_SYMBOL_GPL(au1xxx_get_dma_residue);
822 806
823void 807void au1xxx_dbdma_chan_free(u32 chanid)
824au1xxx_dbdma_chan_free(u32 chanid)
825{ 808{
826 chan_tab_t *ctp; 809 chan_tab_t *ctp;
827 dbdev_tab_t *stp, *dtp; 810 dbdev_tab_t *stp, *dtp;
@@ -842,8 +825,7 @@ au1xxx_dbdma_chan_free(u32 chanid)
842} 825}
843EXPORT_SYMBOL(au1xxx_dbdma_chan_free); 826EXPORT_SYMBOL(au1xxx_dbdma_chan_free);
844 827
845static irqreturn_t 828static irqreturn_t dbdma_interrupt(int irq, void *dev_id)
846dbdma_interrupt(int irq, void *dev_id)
847{ 829{
848 u32 intstat; 830 u32 intstat;
849 u32 chan_index; 831 u32 chan_index;
@@ -859,13 +841,12 @@ dbdma_interrupt(int irq, void *dev_id)
859 cp = ctp->chan_ptr; 841 cp = ctp->chan_ptr;
860 dp = ctp->cur_ptr; 842 dp = ctp->cur_ptr;
861 843
862 /* Reset interrupt. 844 /* Reset interrupt. */
863 */
864 cp->ddma_irq = 0; 845 cp->ddma_irq = 0;
865 au_sync(); 846 au_sync();
866 847
867 if (ctp->chan_callback) 848 if (ctp->chan_callback)
868 (ctp->chan_callback)(irq, ctp->chan_callparam); 849 ctp->chan_callback(irq, ctp->chan_callparam);
869 850
870 ctp->cur_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 851 ctp->cur_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
871 return IRQ_RETVAL(1); 852 return IRQ_RETVAL(1);
@@ -890,47 +871,47 @@ static void au1xxx_dbdma_init(void)
890 871
891 if (request_irq(irq_nr, dbdma_interrupt, IRQF_DISABLED, 872 if (request_irq(irq_nr, dbdma_interrupt, IRQF_DISABLED,
892 "Au1xxx dbdma", (void *)dbdma_gptr)) 873 "Au1xxx dbdma", (void *)dbdma_gptr))
893 printk("Can't get 1550 dbdma irq"); 874 printk(KERN_ERR "Can't get 1550 dbdma irq");
894} 875}
895 876
896void 877void au1xxx_dbdma_dump(u32 chanid)
897au1xxx_dbdma_dump(u32 chanid)
898{ 878{
899 chan_tab_t *ctp; 879 chan_tab_t *ctp;
900 au1x_ddma_desc_t *dp; 880 au1x_ddma_desc_t *dp;
901 dbdev_tab_t *stp, *dtp; 881 dbdev_tab_t *stp, *dtp;
902 au1x_dma_chan_t *cp; 882 au1x_dma_chan_t *cp;
903 u32 i = 0; 883 u32 i = 0;
904 884
905 ctp = *((chan_tab_t **)chanid); 885 ctp = *((chan_tab_t **)chanid);
906 stp = ctp->chan_src; 886 stp = ctp->chan_src;
907 dtp = ctp->chan_dest; 887 dtp = ctp->chan_dest;
908 cp = ctp->chan_ptr; 888 cp = ctp->chan_ptr;
909 889
910 printk("Chan %x, stp %x (dev %d) dtp %x (dev %d) \n", 890 printk(KERN_DEBUG "Chan %x, stp %x (dev %d) dtp %x (dev %d) \n",
911 (u32)ctp, (u32)stp, stp - dbdev_tab, (u32)dtp, dtp - dbdev_tab); 891 (u32)ctp, (u32)stp, stp - dbdev_tab, (u32)dtp,
912 printk("desc base %x, get %x, put %x, cur %x\n", 892 dtp - dbdev_tab);
913 (u32)(ctp->chan_desc_base), (u32)(ctp->get_ptr), 893 printk(KERN_DEBUG "desc base %x, get %x, put %x, cur %x\n",
914 (u32)(ctp->put_ptr), (u32)(ctp->cur_ptr)); 894 (u32)(ctp->chan_desc_base), (u32)(ctp->get_ptr),
915 895 (u32)(ctp->put_ptr), (u32)(ctp->cur_ptr));
916 printk("dbdma chan %x\n", (u32)cp); 896
917 printk("cfg %08x, desptr %08x, statptr %08x\n", 897 printk(KERN_DEBUG "dbdma chan %x\n", (u32)cp);
918 cp->ddma_cfg, cp->ddma_desptr, cp->ddma_statptr); 898 printk(KERN_DEBUG "cfg %08x, desptr %08x, statptr %08x\n",
919 printk("dbell %08x, irq %08x, stat %08x, bytecnt %08x\n", 899 cp->ddma_cfg, cp->ddma_desptr, cp->ddma_statptr);
920 cp->ddma_dbell, cp->ddma_irq, cp->ddma_stat, cp->ddma_bytecnt); 900 printk(KERN_DEBUG "dbell %08x, irq %08x, stat %08x, bytecnt %08x\n",
921 901 cp->ddma_dbell, cp->ddma_irq, cp->ddma_stat,
922 902 cp->ddma_bytecnt);
923 /* Run through the descriptors 903
924 */ 904 /* Run through the descriptors */
925 dp = ctp->chan_desc_base; 905 dp = ctp->chan_desc_base;
926 906
927 do { 907 do {
928 printk("Dp[%d]= %08x, cmd0 %08x, cmd1 %08x\n", 908 printk(KERN_DEBUG "Dp[%d]= %08x, cmd0 %08x, cmd1 %08x\n",
929 i++, (u32)dp, dp->dscr_cmd0, dp->dscr_cmd1); 909 i++, (u32)dp, dp->dscr_cmd0, dp->dscr_cmd1);
930 printk("src0 %08x, src1 %08x, dest0 %08x, dest1 %08x\n", 910 printk(KERN_DEBUG "src0 %08x, src1 %08x, dest0 %08x, dest1 %08x\n",
931 dp->dscr_source0, dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1); 911 dp->dscr_source0, dp->dscr_source1,
932 printk("stat %08x, nxtptr %08x\n", 912 dp->dscr_dest0, dp->dscr_dest1);
933 dp->dscr_stat, dp->dscr_nxtptr); 913 printk(KERN_DEBUG "stat %08x, nxtptr %08x\n",
914 dp->dscr_stat, dp->dscr_nxtptr);
934 dp = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 915 dp = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
935 } while (dp != ctp->chan_desc_base); 916 } while (dp != ctp->chan_desc_base);
936} 917}
@@ -938,32 +919,33 @@ au1xxx_dbdma_dump(u32 chanid)
938/* Put a descriptor into the DMA ring. 919/* Put a descriptor into the DMA ring.
939 * This updates the source/destination pointers and byte count. 920 * This updates the source/destination pointers and byte count.
940 */ 921 */
941u32 922u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr)
942au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr )
943{ 923{
944 chan_tab_t *ctp; 924 chan_tab_t *ctp;
945 au1x_ddma_desc_t *dp; 925 au1x_ddma_desc_t *dp;
946 u32 nbytes=0; 926 u32 nbytes = 0;
947 927
948 /* I guess we could check this to be within the 928 /*
949 * range of the table...... 929 * I guess we could check this to be within the
950 */ 930 * range of the table......
931 */
951 ctp = *((chan_tab_t **)chanid); 932 ctp = *((chan_tab_t **)chanid);
952 933
953 /* We should have multiple callers for a particular channel, 934 /*
954 * an interrupt doesn't affect this pointer nor the descriptor, 935 * We should have multiple callers for a particular channel,
955 * so no locking should be needed. 936 * an interrupt doesn't affect this pointer nor the descriptor,
956 */ 937 * so no locking should be needed.
938 */
957 dp = ctp->put_ptr; 939 dp = ctp->put_ptr;
958 940
959 /* If the descriptor is valid, we are way ahead of the DMA 941 /*
960 * engine, so just return an error condition. 942 * If the descriptor is valid, we are way ahead of the DMA
961 */ 943 * engine, so just return an error condition.
944 */
962 if (dp->dscr_cmd0 & DSCR_CMD0_V) 945 if (dp->dscr_cmd0 & DSCR_CMD0_V)
963 return 0; 946 return 0;
964 947
965 /* Load up buffer addresses and byte count. 948 /* Load up buffer addresses and byte count. */
966 */
967 dp->dscr_dest0 = dscr->dscr_dest0; 949 dp->dscr_dest0 = dscr->dscr_dest0;
968 dp->dscr_source0 = dscr->dscr_source0; 950 dp->dscr_source0 = dscr->dscr_source0;
969 dp->dscr_dest1 = dscr->dscr_dest1; 951 dp->dscr_dest1 = dscr->dscr_dest1;
@@ -975,14 +957,11 @@ au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr )
975 dp->dscr_cmd0 |= dscr->dscr_cmd0 | DSCR_CMD0_V; 957 dp->dscr_cmd0 |= dscr->dscr_cmd0 | DSCR_CMD0_V;
976 ctp->chan_ptr->ddma_dbell = 0; 958 ctp->chan_ptr->ddma_dbell = 0;
977 959
978 /* Get next descriptor pointer. 960 /* Get next descriptor pointer. */
979 */
980 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); 961 ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
981 962
982 /* return something not zero. 963 /* Return something non-zero. */
983 */
984 return nbytes; 964 return nbytes;
985} 965}
986 966
987#endif /* defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200) */ 967#endif /* defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200) */
988
diff --git a/arch/mips/au1000/common/dbg_io.c b/arch/mips/au1000/common/dbg_io.c
index eae1bb2ca26e..af5be7df2f2a 100644
--- a/arch/mips/au1000/common/dbg_io.c
+++ b/arch/mips/au1000/common/dbg_io.c
@@ -1,3 +1,4 @@
1#include <linux/types.h>
1 2
2#include <asm/mach-au1x00/au1000.h> 3#include <asm/mach-au1x00/au1000.h>
3 4
@@ -8,12 +9,6 @@
8 * uart to be used for debugging. 9 * uart to be used for debugging.
9 */ 10 */
10#define DEBUG_BASE UART_DEBUG_BASE 11#define DEBUG_BASE UART_DEBUG_BASE
11/**/
12
13/* we need uint32 uint8 */
14/* #include "types.h" */
15typedef unsigned char uint8;
16typedef unsigned int uint32;
17 12
18#define UART16550_BAUD_2400 2400 13#define UART16550_BAUD_2400 2400
19#define UART16550_BAUD_4800 4800 14#define UART16550_BAUD_4800 4800
@@ -51,17 +46,15 @@ typedef unsigned int uint32;
51#define UART_MOD_CNTRL 0x100 /* Module Control */ 46#define UART_MOD_CNTRL 0x100 /* Module Control */
52 47
53/* memory-mapped read/write of the port */ 48/* memory-mapped read/write of the port */
54#define UART16550_READ(y) (au_readl(DEBUG_BASE + y) & 0xff) 49#define UART16550_READ(y) (au_readl(DEBUG_BASE + y) & 0xff)
55#define UART16550_WRITE(y, z) (au_writel(z&0xff, DEBUG_BASE + y)) 50#define UART16550_WRITE(y, z) (au_writel(z & 0xff, DEBUG_BASE + y))
56 51
57extern unsigned long calc_clock(void); 52extern unsigned long calc_clock(void);
58 53
59void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) 54void debugInit(u32 baud, u8 data, u8 parity, u8 stop)
60{ 55{
61 56 if (UART16550_READ(UART_MOD_CNTRL) != 0x3)
62 if (UART16550_READ(UART_MOD_CNTRL) != 0x3) {
63 UART16550_WRITE(UART_MOD_CNTRL, 3); 57 UART16550_WRITE(UART_MOD_CNTRL, 3);
64 }
65 calc_clock(); 58 calc_clock();
66 59
67 /* disable interrupts */ 60 /* disable interrupts */
@@ -69,7 +62,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop)
69 62
70 /* set up baud rate */ 63 /* set up baud rate */
71 { 64 {
72 uint32 divisor; 65 u32 divisor;
73 66
74 /* set divisor */ 67 /* set divisor */
75 divisor = get_au1x00_uart_baud_base() / baud; 68 divisor = get_au1x00_uart_baud_base() / baud;
@@ -80,9 +73,9 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop)
80 UART16550_WRITE(UART_LCR, (data | parity | stop)); 73 UART16550_WRITE(UART_LCR, (data | parity | stop));
81} 74}
82 75
83static int remoteDebugInitialized = 0; 76static int remoteDebugInitialized;
84 77
85uint8 getDebugChar(void) 78u8 getDebugChar(void)
86{ 79{
87 if (!remoteDebugInitialized) { 80 if (!remoteDebugInitialized) {
88 remoteDebugInitialized = 1; 81 remoteDebugInitialized = 1;
@@ -92,15 +85,13 @@ uint8 getDebugChar(void)
92 UART16550_STOP_1BIT); 85 UART16550_STOP_1BIT);
93 } 86 }
94 87
95 while((UART16550_READ(UART_LSR) & 0x1) == 0); 88 while ((UART16550_READ(UART_LSR) & 0x1) == 0);
96 return UART16550_READ(UART_RX); 89 return UART16550_READ(UART_RX);
97} 90}
98 91
99 92
100int putDebugChar(uint8 byte) 93int putDebugChar(u8 byte)
101{ 94{
102// int i;
103
104 if (!remoteDebugInitialized) { 95 if (!remoteDebugInitialized) {
105 remoteDebugInitialized = 1; 96 remoteDebugInitialized = 1;
106 debugInit(UART16550_BAUD_115200, 97 debugInit(UART16550_BAUD_115200,
@@ -109,9 +100,8 @@ int putDebugChar(uint8 byte)
109 UART16550_STOP_1BIT); 100 UART16550_STOP_1BIT);
110 } 101 }
111 102
112 while ((UART16550_READ(UART_LSR)&0x40) == 0); 103 while ((UART16550_READ(UART_LSR) & 0x40) == 0);
113 UART16550_WRITE(UART_TX, byte); 104 UART16550_WRITE(UART_TX, byte);
114 //for (i=0;i<0xfff;i++);
115 105
116 return 1; 106 return 1;
117} 107}
diff --git a/arch/mips/au1000/common/dma.c b/arch/mips/au1000/common/dma.c
index 95f69ea146e9..d6fbda232e6a 100644
--- a/arch/mips/au1000/common/dma.c
+++ b/arch/mips/au1000/common/dma.c
@@ -1,12 +1,11 @@
1/* 1/*
2 * 2 *
3 * BRIEF MODULE DESCRIPTION 3 * BRIEF MODULE DESCRIPTION
4 * A DMA channel allocator for Au1000. API is modeled loosely off of 4 * A DMA channel allocator for Au1x00. API is modeled loosely off of
5 * linux/kernel/dma.c. 5 * linux/kernel/dma.c.
6 * 6 *
7 * Copyright 2000 MontaVista Software Inc. 7 * Copyright 2000, 2008 MontaVista Software Inc.
8 * Author: MontaVista Software, Inc. 8 * Author: MontaVista Software, Inc. <source@mvista.com>
9 * stevel@mvista.com or source@mvista.com
10 * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) 9 * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
11 * 10 *
12 * This program is free software; you can redistribute it and/or modify it 11 * This program is free software; you can redistribute it and/or modify it
@@ -39,7 +38,8 @@
39#include <asm/mach-au1x00/au1000.h> 38#include <asm/mach-au1x00/au1000.h>
40#include <asm/mach-au1x00/au1000_dma.h> 39#include <asm/mach-au1x00/au1000_dma.h>
41 40
42#if defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1500) || defined(CONFIG_SOC_AU1100) 41#if defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1500) || \
42 defined(CONFIG_SOC_AU1100)
43/* 43/*
44 * A note on resource allocation: 44 * A note on resource allocation:
45 * 45 *
@@ -56,7 +56,6 @@
56 * returned from request_dma. 56 * returned from request_dma.
57 */ 57 */
58 58
59
60DEFINE_SPINLOCK(au1000_dma_spin_lock); 59DEFINE_SPINLOCK(au1000_dma_spin_lock);
61 60
62struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = { 61struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = {
@@ -71,7 +70,7 @@ struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = {
71}; 70};
72EXPORT_SYMBOL(au1000_dma_table); 71EXPORT_SYMBOL(au1000_dma_table);
73 72
74// Device FIFO addresses and default DMA modes 73/* Device FIFO addresses and default DMA modes */
75static const struct dma_dev { 74static const struct dma_dev {
76 unsigned int fifo_addr; 75 unsigned int fifo_addr;
77 unsigned int dma_mode; 76 unsigned int dma_mode;
@@ -80,8 +79,8 @@ static const struct dma_dev {
80 {UART0_ADDR + UART_RX, 0}, 79 {UART0_ADDR + UART_RX, 0},
81 {0, 0}, 80 {0, 0},
82 {0, 0}, 81 {0, 0},
83 {AC97C_DATA, DMA_DW16 }, // coherent 82 {AC97C_DATA, DMA_DW16 }, /* coherent */
84 {AC97C_DATA, DMA_DR | DMA_DW16 }, // coherent 83 {AC97C_DATA, DMA_DR | DMA_DW16 }, /* coherent */
85 {UART3_ADDR + UART_TX, DMA_DW8 | DMA_NC}, 84 {UART3_ADDR + UART_TX, DMA_DW8 | DMA_NC},
86 {UART3_ADDR + UART_RX, DMA_DR | DMA_DW8 | DMA_NC}, 85 {UART3_ADDR + UART_RX, DMA_DR | DMA_DW8 | DMA_NC},
87 {USBD_EP0RD, DMA_DR | DMA_DW8 | DMA_NC}, 86 {USBD_EP0RD, DMA_DR | DMA_DW8 | DMA_NC},
@@ -101,10 +100,10 @@ int au1000_dma_read_proc(char *buf, char **start, off_t fpos,
101 struct dma_chan *chan; 100 struct dma_chan *chan;
102 101
103 for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++) { 102 for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++) {
104 if ((chan = get_dma_chan(i)) != NULL) { 103 chan = get_dma_chan(i);
104 if (chan != NULL)
105 len += sprintf(buf + len, "%2d: %s\n", 105 len += sprintf(buf + len, "%2d: %s\n",
106 i, chan->dev_str); 106 i, chan->dev_str);
107 }
108 } 107 }
109 108
110 if (fpos >= len) { 109 if (fpos >= len) {
@@ -113,18 +112,19 @@ int au1000_dma_read_proc(char *buf, char **start, off_t fpos,
113 return 0; 112 return 0;
114 } 113 }
115 *start = buf + fpos; 114 *start = buf + fpos;
116 if ((len -= fpos) > length) 115 len -= fpos;
116 if (len > length)
117 return length; 117 return length;
118 *eof = 1; 118 *eof = 1;
119 return len; 119 return len;
120} 120}
121 121
122// Device FIFO addresses and default DMA modes - 2nd bank 122/* Device FIFO addresses and default DMA modes - 2nd bank */
123static const struct dma_dev dma_dev_table_bank2[DMA_NUM_DEV_BANK2] = { 123static const struct dma_dev dma_dev_table_bank2[DMA_NUM_DEV_BANK2] = {
124 {SD0_XMIT_FIFO, DMA_DS | DMA_DW8}, // coherent 124 { SD0_XMIT_FIFO, DMA_DS | DMA_DW8 }, /* coherent */
125 {SD0_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8}, // coherent 125 { SD0_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 }, /* coherent */
126 {SD1_XMIT_FIFO, DMA_DS | DMA_DW8}, // coherent 126 { SD1_XMIT_FIFO, DMA_DS | DMA_DW8 }, /* coherent */
127 {SD1_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8} // coherent 127 { SD1_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 } /* coherent */
128}; 128};
129 129
130void dump_au1000_dma_channel(unsigned int dmanr) 130void dump_au1000_dma_channel(unsigned int dmanr)
@@ -150,7 +150,6 @@ void dump_au1000_dma_channel(unsigned int dmanr)
150 au_readl(chan->io + DMA_BUFFER1_COUNT)); 150 au_readl(chan->io + DMA_BUFFER1_COUNT));
151} 151}
152 152
153
154/* 153/*
155 * Finds a free channel, and binds the requested device to it. 154 * Finds a free channel, and binds the requested device to it.
156 * Returns the allocated channel number, or negative on error. 155 * Returns the allocated channel number, or negative on error.
@@ -169,14 +168,14 @@ int request_au1000_dma(int dev_id, const char *dev_str,
169 if (dev_id < 0 || dev_id >= (DMA_NUM_DEV + DMA_NUM_DEV_BANK2)) 168 if (dev_id < 0 || dev_id >= (DMA_NUM_DEV + DMA_NUM_DEV_BANK2))
170 return -EINVAL; 169 return -EINVAL;
171#else 170#else
172 if (dev_id < 0 || dev_id >= DMA_NUM_DEV) 171 if (dev_id < 0 || dev_id >= DMA_NUM_DEV)
173 return -EINVAL; 172 return -EINVAL;
174#endif 173#endif
175 174
176 for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++) { 175 for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
177 if (au1000_dma_table[i].dev_id < 0) 176 if (au1000_dma_table[i].dev_id < 0)
178 break; 177 break;
179 } 178
180 if (i == NUM_AU1000_DMA_CHANNELS) 179 if (i == NUM_AU1000_DMA_CHANNELS)
181 return -ENODEV; 180 return -ENODEV;
182 181
@@ -185,15 +184,15 @@ int request_au1000_dma(int dev_id, const char *dev_str,
185 if (dev_id >= DMA_NUM_DEV) { 184 if (dev_id >= DMA_NUM_DEV) {
186 dev_id -= DMA_NUM_DEV; 185 dev_id -= DMA_NUM_DEV;
187 dev = &dma_dev_table_bank2[dev_id]; 186 dev = &dma_dev_table_bank2[dev_id];
188 } else { 187 } else
189 dev = &dma_dev_table[dev_id]; 188 dev = &dma_dev_table[dev_id];
190 }
191 189
192 if (irqhandler) { 190 if (irqhandler) {
193 chan->irq = AU1000_DMA_INT_BASE + i; 191 chan->irq = AU1000_DMA_INT_BASE + i;
194 chan->irq_dev = irq_dev_id; 192 chan->irq_dev = irq_dev_id;
195 if ((ret = request_irq(chan->irq, irqhandler, irqflags, 193 ret = request_irq(chan->irq, irqhandler, irqflags, dev_str,
196 dev_str, chan->irq_dev))) { 194 chan->irq_dev);
195 if (ret) {
197 chan->irq = 0; 196 chan->irq = 0;
198 chan->irq_dev = NULL; 197 chan->irq_dev = NULL;
199 return ret; 198 return ret;
@@ -203,7 +202,7 @@ int request_au1000_dma(int dev_id, const char *dev_str,
203 chan->irq_dev = NULL; 202 chan->irq_dev = NULL;
204 } 203 }
205 204
206 // fill it in 205 /* fill it in */
207 chan->io = DMA_CHANNEL_BASE + i * DMA_CHANNEL_LEN; 206 chan->io = DMA_CHANNEL_BASE + i * DMA_CHANNEL_LEN;
208 chan->dev_id = dev_id; 207 chan->dev_id = dev_id;
209 chan->dev_str = dev_str; 208 chan->dev_str = dev_str;
@@ -220,8 +219,9 @@ EXPORT_SYMBOL(request_au1000_dma);
220void free_au1000_dma(unsigned int dmanr) 219void free_au1000_dma(unsigned int dmanr)
221{ 220{
222 struct dma_chan *chan = get_dma_chan(dmanr); 221 struct dma_chan *chan = get_dma_chan(dmanr);
222
223 if (!chan) { 223 if (!chan) {
224 printk("Trying to free DMA%d\n", dmanr); 224 printk(KERN_ERR "Error trying to free DMA%d\n", dmanr);
225 return; 225 return;
226 } 226 }
227 227
@@ -235,4 +235,4 @@ void free_au1000_dma(unsigned int dmanr)
235} 235}
236EXPORT_SYMBOL(free_au1000_dma); 236EXPORT_SYMBOL(free_au1000_dma);
237 237
238#endif // AU1000 AU1500 AU1100 238#endif /* AU1000 AU1500 AU1100 */
diff --git a/arch/mips/au1000/common/gpio.c b/arch/mips/au1000/common/gpio.c
index 525452589971..b485d94ce8a5 100644
--- a/arch/mips/au1000/common/gpio.c
+++ b/arch/mips/au1000/common/gpio.c
@@ -69,7 +69,7 @@ static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
69 69
70static int au1xxx_gpio1_read(unsigned gpio) 70static int au1xxx_gpio1_read(unsigned gpio)
71{ 71{
72 return ((gpio1->pinstaterd >> gpio) & 0x01); 72 return (gpio1->pinstaterd >> gpio) & 0x01;
73} 73}
74 74
75static void au1xxx_gpio1_write(unsigned gpio, int value) 75static void au1xxx_gpio1_write(unsigned gpio, int value)
@@ -104,7 +104,6 @@ int au1xxx_gpio_get_value(unsigned gpio)
104 else 104 else
105 return au1xxx_gpio1_read(gpio); 105 return au1xxx_gpio1_read(gpio);
106} 106}
107
108EXPORT_SYMBOL(au1xxx_gpio_get_value); 107EXPORT_SYMBOL(au1xxx_gpio_get_value);
109 108
110void au1xxx_gpio_set_value(unsigned gpio, int value) 109void au1xxx_gpio_set_value(unsigned gpio, int value)
@@ -118,7 +117,6 @@ void au1xxx_gpio_set_value(unsigned gpio, int value)
118 else 117 else
119 au1xxx_gpio1_write(gpio, value); 118 au1xxx_gpio1_write(gpio, value);
120} 119}
121
122EXPORT_SYMBOL(au1xxx_gpio_set_value); 120EXPORT_SYMBOL(au1xxx_gpio_set_value);
123 121
124int au1xxx_gpio_direction_input(unsigned gpio) 122int au1xxx_gpio_direction_input(unsigned gpio)
@@ -132,7 +130,6 @@ int au1xxx_gpio_direction_input(unsigned gpio)
132 130
133 return au1xxx_gpio1_direction_input(gpio); 131 return au1xxx_gpio1_direction_input(gpio);
134} 132}
135
136EXPORT_SYMBOL(au1xxx_gpio_direction_input); 133EXPORT_SYMBOL(au1xxx_gpio_direction_input);
137 134
138int au1xxx_gpio_direction_output(unsigned gpio, int value) 135int au1xxx_gpio_direction_output(unsigned gpio, int value)
@@ -146,5 +143,4 @@ int au1xxx_gpio_direction_output(unsigned gpio, int value)
146 143
147 return au1xxx_gpio1_direction_output(gpio, value); 144 return au1xxx_gpio1_direction_output(gpio, value);
148} 145}
149
150EXPORT_SYMBOL(au1xxx_gpio_direction_output); 146EXPORT_SYMBOL(au1xxx_gpio_direction_output);
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index f0626992fd75..40c6ceceb5f9 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -210,10 +210,8 @@ static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr)
210 au_sync(); 210 au_sync();
211} 211}
212 212
213
214static inline void mask_and_ack_level_irq(unsigned int irq_nr) 213static inline void mask_and_ack_level_irq(unsigned int irq_nr)
215{ 214{
216
217 local_disable_irq(irq_nr); 215 local_disable_irq(irq_nr);
218 au_sync(); 216 au_sync();
219#if defined(CONFIG_MIPS_PB1000) 217#if defined(CONFIG_MIPS_PB1000)
@@ -263,14 +261,14 @@ void restore_local_and_enable(int controller, unsigned long mask)
263 unsigned long flags, new_mask; 261 unsigned long flags, new_mask;
264 262
265 spin_lock_irqsave(&irq_lock, flags); 263 spin_lock_irqsave(&irq_lock, flags);
266 for (i = 0; i < 32; i++) { 264 for (i = 0; i < 32; i++)
267 if (mask & (1 << i)) { 265 if (mask & (1 << i)) {
268 if (controller) 266 if (controller)
269 local_enable_irq(i + 32); 267 local_enable_irq(i + 32);
270 else 268 else
271 local_enable_irq(i); 269 local_enable_irq(i);
272 } 270 }
273 } 271
274 if (controller) 272 if (controller)
275 new_mask = au_readl(IC1_MASKSET); 273 new_mask = au_readl(IC1_MASKSET);
276 else 274 else
diff --git a/arch/mips/au1000/common/pci.c b/arch/mips/au1000/common/pci.c
index 7e966b31e3e1..7866cf50cf99 100644
--- a/arch/mips/au1000/common/pci.c
+++ b/arch/mips/au1000/common/pci.c
@@ -2,9 +2,8 @@
2 * BRIEF MODULE DESCRIPTION 2 * BRIEF MODULE DESCRIPTION
3 * Alchemy/AMD Au1x00 PCI support. 3 * Alchemy/AMD Au1x00 PCI support.
4 * 4 *
5 * Copyright 2001-2003, 2007 MontaVista Software Inc. 5 * Copyright 2001-2003, 2007-2008 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. 6 * Author: MontaVista Software, Inc. <source@mvista.com>
7 * ppopov@mvista.com or source@mvista.com
8 * 7 *
9 * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) 8 * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
10 * 9 *
@@ -86,9 +85,9 @@ static int __init au1x_pci_setup(void)
86 u32 prid = read_c0_prid(); 85 u32 prid = read_c0_prid();
87 86
88 if ((prid & 0xFF000000) == 0x01000000 && prid < 0x01030202) { 87 if ((prid & 0xFF000000) == 0x01000000 && prid < 0x01030202) {
89 au_writel((1 << 16) | au_readl(Au1500_PCI_CFG), 88 au_writel((1 << 16) | au_readl(Au1500_PCI_CFG),
90 Au1500_PCI_CFG); 89 Au1500_PCI_CFG);
91 printk("Non-coherent PCI accesses enabled\n"); 90 printk(KERN_INFO "Non-coherent PCI accesses enabled\n");
92 } 91 }
93 } 92 }
94#endif 93#endif
diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c
index dbefa9ef63b5..8cae7753ef79 100644
--- a/arch/mips/au1000/common/platform.c
+++ b/arch/mips/au1000/common/platform.c
@@ -302,16 +302,17 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
302#endif 302#endif
303}; 303};
304 304
305int __init au1xxx_platform_init(void) 305static int __init au1xxx_platform_init(void)
306{ 306{
307 unsigned int uartclk = get_au1x00_uart_baud_base() * 16; 307 unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
308 int i; 308 int i;
309 309
310 /* Fill up uartclk. */ 310 /* Fill up uartclk. */
311 for (i = 0; au1x00_uart_data[i].flags ; i++) 311 for (i = 0; au1x00_uart_data[i].flags; i++)
312 au1x00_uart_data[i].uartclk = uartclk; 312 au1x00_uart_data[i].uartclk = uartclk;
313 313
314 return platform_add_devices(au1xxx_platform_devices, ARRAY_SIZE(au1xxx_platform_devices)); 314 return platform_add_devices(au1xxx_platform_devices,
315 ARRAY_SIZE(au1xxx_platform_devices));
315} 316}
316 317
317arch_initcall(au1xxx_platform_init); 318arch_initcall(au1xxx_platform_init);
diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c
index a8cd2c1b9e1b..2166b9e1e80c 100644
--- a/arch/mips/au1000/common/power.c
+++ b/arch/mips/au1000/common/power.c
@@ -1,10 +1,9 @@
1/* 1/*
2 * BRIEF MODULE DESCRIPTION 2 * BRIEF MODULE DESCRIPTION
3 * Au1000 Power Management routines. 3 * Au1xx0 Power Management routines.
4 * 4 *
5 * Copyright 2001 MontaVista Software Inc. 5 * Copyright 2001, 2008 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. 6 * Author: MontaVista Software, Inc. <source@mvista.com>
7 * ppopov@mvista.com or source@mvista.com
8 * 7 *
9 * Some of the routines are right out of init/main.c, whose 8 * Some of the routines are right out of init/main.c, whose
10 * copyrights apply here. 9 * copyrights apply here.
@@ -43,10 +42,10 @@
43#ifdef CONFIG_PM 42#ifdef CONFIG_PM
44 43
45#define DEBUG 1 44#define DEBUG 1
46#ifdef DEBUG 45#ifdef DEBUG
47# define DPRINTK(fmt, args...) printk("%s: " fmt, __func__, ## args) 46#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__, ## args)
48#else 47#else
49# define DPRINTK(fmt, args...) 48#define DPRINTK(fmt, args...)
50#endif 49#endif
51 50
52static void au1000_calibrate_delay(void); 51static void au1000_calibrate_delay(void);
@@ -57,7 +56,8 @@ extern void local_enable_irq(unsigned int irq_nr);
57 56
58static DEFINE_SPINLOCK(pm_lock); 57static DEFINE_SPINLOCK(pm_lock);
59 58
60/* We need to save/restore a bunch of core registers that are 59/*
60 * We need to save/restore a bunch of core registers that are
61 * either volatile or reset to some state across a processor sleep. 61 * either volatile or reset to some state across a processor sleep.
62 * If reading a register doesn't provide a proper result for a 62 * If reading a register doesn't provide a proper result for a
63 * later restore, we have to provide a function for loading that 63 * later restore, we have to provide a function for loading that
@@ -78,24 +78,25 @@ static unsigned int sleep_usbhost_enable;
78static unsigned int sleep_usbdev_enable; 78static unsigned int sleep_usbdev_enable;
79static unsigned int sleep_static_memctlr[4][3]; 79static unsigned int sleep_static_memctlr[4][3];
80 80
81/* Define this to cause the value you write to /proc/sys/pm/sleep to 81/*
82 * Define this to cause the value you write to /proc/sys/pm/sleep to
82 * set the TOY timer for the amount of time you want to sleep. 83 * set the TOY timer for the amount of time you want to sleep.
83 * This is done mainly for testing, but may be useful in other cases. 84 * This is done mainly for testing, but may be useful in other cases.
84 * The value is number of 32KHz ticks to sleep. 85 * The value is number of 32KHz ticks to sleep.
85 */ 86 */
86#define SLEEP_TEST_TIMEOUT 1 87#define SLEEP_TEST_TIMEOUT 1
87#ifdef SLEEP_TEST_TIMEOUT 88#ifdef SLEEP_TEST_TIMEOUT
88static int sleep_ticks; 89static int sleep_ticks;
89void wakeup_counter0_set(int ticks); 90void wakeup_counter0_set(int ticks);
90#endif 91#endif
91 92
92static void 93static void save_core_regs(void)
93save_core_regs(void)
94{ 94{
95 extern void save_au1xxx_intctl(void); 95 extern void save_au1xxx_intctl(void);
96 extern void pm_eth0_shutdown(void); 96 extern void pm_eth0_shutdown(void);
97 97
98 /* Do the serial ports.....these really should be a pm_* 98 /*
99 * Do the serial ports.....these really should be a pm_*
99 * registered function by the driver......but of course the 100 * registered function by the driver......but of course the
100 * standard serial driver doesn't understand our Au1xxx 101 * standard serial driver doesn't understand our Au1xxx
101 * unique registers. 102 * unique registers.
@@ -106,27 +107,24 @@ save_core_regs(void)
106 sleep_uart0_clkdiv = au_readl(UART0_ADDR + UART_CLK); 107 sleep_uart0_clkdiv = au_readl(UART0_ADDR + UART_CLK);
107 sleep_uart0_enable = au_readl(UART0_ADDR + UART_MOD_CNTRL); 108 sleep_uart0_enable = au_readl(UART0_ADDR + UART_MOD_CNTRL);
108 109
109 /* Shutdown USB host/device. 110 /* Shutdown USB host/device. */
110 */
111 sleep_usbhost_enable = au_readl(USB_HOST_CONFIG); 111 sleep_usbhost_enable = au_readl(USB_HOST_CONFIG);
112 112
113 /* There appears to be some undocumented reset register.... 113 /* There appears to be some undocumented reset register.... */
114 */
115 au_writel(0, 0xb0100004); au_sync(); 114 au_writel(0, 0xb0100004); au_sync();
116 au_writel(0, USB_HOST_CONFIG); au_sync(); 115 au_writel(0, USB_HOST_CONFIG); au_sync();
117 116
118 sleep_usbdev_enable = au_readl(USBD_ENABLE); 117 sleep_usbdev_enable = au_readl(USBD_ENABLE);
119 au_writel(0, USBD_ENABLE); au_sync(); 118 au_writel(0, USBD_ENABLE); au_sync();
120 119
121 /* Save interrupt controller state. 120 /* Save interrupt controller state. */
122 */
123 save_au1xxx_intctl(); 121 save_au1xxx_intctl();
124 122
125 /* Clocks and PLLs. 123 /* Clocks and PLLs. */
126 */
127 sleep_aux_pll_cntrl = au_readl(SYS_AUXPLL); 124 sleep_aux_pll_cntrl = au_readl(SYS_AUXPLL);
128 125
129 /* We don't really need to do this one, but unless we 126 /*
127 * We don't really need to do this one, but unless we
130 * write it again it won't have a valid value if we 128 * write it again it won't have a valid value if we
131 * happen to read it. 129 * happen to read it.
132 */ 130 */
@@ -134,8 +132,7 @@ save_core_regs(void)
134 132
135 sleep_pin_function = au_readl(SYS_PINFUNC); 133 sleep_pin_function = au_readl(SYS_PINFUNC);
136 134
137 /* Save the static memory controller configuration. 135 /* Save the static memory controller configuration. */
138 */
139 sleep_static_memctlr[0][0] = au_readl(MEM_STCFG0); 136 sleep_static_memctlr[0][0] = au_readl(MEM_STCFG0);
140 sleep_static_memctlr[0][1] = au_readl(MEM_STTIME0); 137 sleep_static_memctlr[0][1] = au_readl(MEM_STTIME0);
141 sleep_static_memctlr[0][2] = au_readl(MEM_STADDR0); 138 sleep_static_memctlr[0][2] = au_readl(MEM_STADDR0);
@@ -150,8 +147,7 @@ save_core_regs(void)
150 sleep_static_memctlr[3][2] = au_readl(MEM_STADDR3); 147 sleep_static_memctlr[3][2] = au_readl(MEM_STADDR3);
151} 148}
152 149
153static void 150static void restore_core_regs(void)
154restore_core_regs(void)
155{ 151{
156 extern void restore_au1xxx_intctl(void); 152 extern void restore_au1xxx_intctl(void);
157 extern void wakeup_counter0_adjust(void); 153 extern void wakeup_counter0_adjust(void);
@@ -160,8 +156,7 @@ restore_core_regs(void)
160 au_writel(sleep_cpu_pll_cntrl, SYS_CPUPLL); au_sync(); 156 au_writel(sleep_cpu_pll_cntrl, SYS_CPUPLL); au_sync();
161 au_writel(sleep_pin_function, SYS_PINFUNC); au_sync(); 157 au_writel(sleep_pin_function, SYS_PINFUNC); au_sync();
162 158
163 /* Restore the static memory controller configuration. 159 /* Restore the static memory controller configuration. */
164 */
165 au_writel(sleep_static_memctlr[0][0], MEM_STCFG0); 160 au_writel(sleep_static_memctlr[0][0], MEM_STCFG0);
166 au_writel(sleep_static_memctlr[0][1], MEM_STTIME0); 161 au_writel(sleep_static_memctlr[0][1], MEM_STTIME0);
167 au_writel(sleep_static_memctlr[0][2], MEM_STADDR0); 162 au_writel(sleep_static_memctlr[0][2], MEM_STADDR0);
@@ -175,7 +170,8 @@ restore_core_regs(void)
175 au_writel(sleep_static_memctlr[3][1], MEM_STTIME3); 170 au_writel(sleep_static_memctlr[3][1], MEM_STTIME3);
176 au_writel(sleep_static_memctlr[3][2], MEM_STADDR3); 171 au_writel(sleep_static_memctlr[3][2], MEM_STADDR3);
177 172
178 /* Enable the UART if it was enabled before sleep. 173 /*
174 * Enable the UART if it was enabled before sleep.
179 * I guess I should define module control bits........ 175 * I guess I should define module control bits........
180 */ 176 */
181 if (sleep_uart0_enable & 0x02) { 177 if (sleep_uart0_enable & 0x02) {
@@ -202,7 +198,7 @@ void wakeup_from_suspend(void)
202int au_sleep(void) 198int au_sleep(void)
203{ 199{
204 unsigned long wakeup, flags; 200 unsigned long wakeup, flags;
205 extern void save_and_sleep(void); 201 extern void save_and_sleep(void);
206 202
207 spin_lock_irqsave(&pm_lock, flags); 203 spin_lock_irqsave(&pm_lock, flags);
208 204
@@ -210,23 +206,22 @@ int au_sleep(void)
210 206
211 flush_cache_all(); 207 flush_cache_all();
212 208
213 /** The code below is all system dependent and we should probably 209 /**
210 ** The code below is all system dependent and we should probably
214 ** have a function call out of here to set this up. You need 211 ** have a function call out of here to set this up. You need
215 ** to configure the GPIO or timer interrupts that will bring 212 ** to configure the GPIO or timer interrupts that will bring
216 ** you out of sleep. 213 ** you out of sleep.
217 ** For testing, the TOY counter wakeup is useful. 214 ** For testing, the TOY counter wakeup is useful.
218 **/ 215 **/
219
220#if 0 216#if 0
221 au_writel(au_readl(SYS_PINSTATERD) & ~(1 << 11), SYS_PINSTATERD); 217 au_writel(au_readl(SYS_PINSTATERD) & ~(1 << 11), SYS_PINSTATERD);
222 218
223 /* gpio 6 can cause a wake up event */ 219 /* GPIO 6 can cause a wake up event */
224 wakeup = au_readl(SYS_WAKEMSK); 220 wakeup = au_readl(SYS_WAKEMSK);
225 wakeup &= ~(1 << 8); /* turn off match20 wakeup */ 221 wakeup &= ~(1 << 8); /* turn off match20 wakeup */
226 wakeup |= 1 << 6; /* turn on gpio 6 wakeup */ 222 wakeup |= 1 << 6; /* turn on GPIO 6 wakeup */
227#else 223#else
228 /* For testing, allow match20 to wake us up. 224 /* For testing, allow match20 to wake us up. */
229 */
230#ifdef SLEEP_TEST_TIMEOUT 225#ifdef SLEEP_TEST_TIMEOUT
231 wakeup_counter0_set(sleep_ticks); 226 wakeup_counter0_set(sleep_ticks);
232#endif 227#endif
@@ -240,7 +235,8 @@ int au_sleep(void)
240 235
241 save_and_sleep(); 236 save_and_sleep();
242 237
243 /* after a wakeup, the cpu vectors back to 0x1fc00000 so 238 /*
239 * After a wakeup, the cpu vectors back to 0x1fc00000, so
244 * it's up to the boot code to get us back here. 240 * it's up to the boot code to get us back here.
245 */ 241 */
246 restore_core_regs(); 242 restore_core_regs();
@@ -248,24 +244,22 @@ int au_sleep(void)
248 return 0; 244 return 0;
249} 245}
250 246
251static int pm_do_sleep(ctl_table * ctl, int write, struct file *file, 247static int pm_do_sleep(ctl_table *ctl, int write, struct file *file,
252 void __user *buffer, size_t * len, loff_t *ppos) 248 void __user *buffer, size_t *len, loff_t *ppos)
253{ 249{
254#ifdef SLEEP_TEST_TIMEOUT 250#ifdef SLEEP_TEST_TIMEOUT
255#define TMPBUFLEN2 16 251#define TMPBUFLEN2 16
256 char buf[TMPBUFLEN2], *p; 252 char buf[TMPBUFLEN2], *p;
257#endif 253#endif
258 254
259 if (!write) { 255 if (!write)
260 *len = 0; 256 *len = 0;
261 } else { 257 else {
262#ifdef SLEEP_TEST_TIMEOUT 258#ifdef SLEEP_TEST_TIMEOUT
263 if (*len > TMPBUFLEN2 - 1) { 259 if (*len > TMPBUFLEN2 - 1)
264 return -EFAULT; 260 return -EFAULT;
265 } 261 if (copy_from_user(buf, buffer, *len))
266 if (copy_from_user(buf, buffer, *len)) {
267 return -EFAULT; 262 return -EFAULT;
268 }
269 buf[*len] = 0; 263 buf[*len] = 0;
270 p = buf; 264 p = buf;
271 sleep_ticks = simple_strtoul(p, &p, 0); 265 sleep_ticks = simple_strtoul(p, &p, 0);
@@ -276,8 +270,8 @@ static int pm_do_sleep(ctl_table * ctl, int write, struct file *file,
276 return 0; 270 return 0;
277} 271}
278 272
279static int pm_do_freq(ctl_table * ctl, int write, struct file *file, 273static int pm_do_freq(ctl_table *ctl, int write, struct file *file,
280 void __user *buffer, size_t * len, loff_t *ppos) 274 void __user *buffer, size_t *len, loff_t *ppos)
281{ 275{
282 int retval = 0, i; 276 int retval = 0, i;
283 unsigned long val, pll; 277 unsigned long val, pll;
@@ -285,14 +279,14 @@ static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
285#define MAX_CPU_FREQ 396 279#define MAX_CPU_FREQ 396
286 char buf[TMPBUFLEN], *p; 280 char buf[TMPBUFLEN], *p;
287 unsigned long flags, intc0_mask, intc1_mask; 281 unsigned long flags, intc0_mask, intc1_mask;
288 unsigned long old_baud_base, old_cpu_freq, baud_rate, old_clk, 282 unsigned long old_baud_base, old_cpu_freq, old_clk, old_refresh;
289 old_refresh;
290 unsigned long new_baud_base, new_cpu_freq, new_clk, new_refresh; 283 unsigned long new_baud_base, new_cpu_freq, new_clk, new_refresh;
284 unsigned long baud_rate;
291 285
292 spin_lock_irqsave(&pm_lock, flags); 286 spin_lock_irqsave(&pm_lock, flags);
293 if (!write) { 287 if (!write)
294 *len = 0; 288 *len = 0;
295 } else { 289 else {
296 /* Parse the new frequency */ 290 /* Parse the new frequency */
297 if (*len > TMPBUFLEN - 1) { 291 if (*len > TMPBUFLEN - 1) {
298 spin_unlock_irqrestore(&pm_lock, flags); 292 spin_unlock_irqrestore(&pm_lock, flags);
@@ -312,7 +306,7 @@ static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
312 306
313 pll = val / 12; 307 pll = val / 12;
314 if ((pll > 33) || (pll < 7)) { /* 396 MHz max, 84 MHz min */ 308 if ((pll > 33) || (pll < 7)) { /* 396 MHz max, 84 MHz min */
315 /* revisit this for higher speed cpus */ 309 /* Revisit this for higher speed CPUs */
316 spin_unlock_irqrestore(&pm_lock, flags); 310 spin_unlock_irqrestore(&pm_lock, flags);
317 return -EFAULT; 311 return -EFAULT;
318 } 312 }
@@ -321,30 +315,28 @@ static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
321 old_cpu_freq = get_au1x00_speed(); 315 old_cpu_freq = get_au1x00_speed();
322 316
323 new_cpu_freq = pll * 12 * 1000000; 317 new_cpu_freq = pll * 12 * 1000000;
324 new_baud_base = (new_cpu_freq / (2 * ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2) * 16)); 318 new_baud_base = (new_cpu_freq / (2 * ((int)(au_readl(SYS_POWERCTRL)
319 & 0x03) + 2) * 16));
325 set_au1x00_speed(new_cpu_freq); 320 set_au1x00_speed(new_cpu_freq);
326 set_au1x00_uart_baud_base(new_baud_base); 321 set_au1x00_uart_baud_base(new_baud_base);
327 322
328 old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff; 323 old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff;
329 new_refresh = 324 new_refresh = ((old_refresh * new_cpu_freq) / old_cpu_freq) |
330 ((old_refresh * new_cpu_freq) / 325 (au_readl(MEM_SDREFCFG) & ~0x1ffffff);
331 old_cpu_freq) | (au_readl(MEM_SDREFCFG) & ~0x1ffffff);
332 326
333 au_writel(pll, SYS_CPUPLL); 327 au_writel(pll, SYS_CPUPLL);
334 au_sync_delay(1); 328 au_sync_delay(1);
335 au_writel(new_refresh, MEM_SDREFCFG); 329 au_writel(new_refresh, MEM_SDREFCFG);
336 au_sync_delay(1); 330 au_sync_delay(1);
337 331
338 for (i = 0; i < 4; i++) { 332 for (i = 0; i < 4; i++)
339 if (au_readl 333 if (au_readl(UART_BASE + UART_MOD_CNTRL +
340 (UART_BASE + UART_MOD_CNTRL + 334 i * 0x00100000) == 3) {
341 i * 0x00100000) == 3) { 335 old_clk = au_readl(UART_BASE + UART_CLK +
342 old_clk = 336 i * 0x00100000);
343 au_readl(UART_BASE + UART_CLK +
344 i * 0x00100000);
345 // baud_rate = baud_base/clk
346 baud_rate = old_baud_base / old_clk; 337 baud_rate = old_baud_base / old_clk;
347 /* we won't get an exact baud rate and the error 338 /*
339 * We won't get an exact baud rate and the error
348 * could be significant enough that our new 340 * could be significant enough that our new
349 * calculation will result in a clock that will 341 * calculation will result in a clock that will
350 * give us a baud rate that's too far off from 342 * give us a baud rate that's too far off from
@@ -359,18 +351,14 @@ static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
359 else if (baud_rate > 17000) 351 else if (baud_rate > 17000)
360 baud_rate = 19200; 352 baud_rate = 19200;
361 else 353 else
362 (baud_rate = 9600); 354 baud_rate = 9600;
363 // new_clk = new_baud_base/baud_rate
364 new_clk = new_baud_base / baud_rate; 355 new_clk = new_baud_base / baud_rate;
365 au_writel(new_clk, 356 au_writel(new_clk, UART_BASE + UART_CLK +
366 UART_BASE + UART_CLK + 357 i * 0x00100000);
367 i * 0x00100000);
368 au_sync_delay(10); 358 au_sync_delay(10);
369 } 359 }
370 }
371 } 360 }
372 361
373
374 /* 362 /*
375 * We don't want _any_ interrupts other than match20. Otherwise our 363 * We don't want _any_ interrupts other than match20. Otherwise our
376 * au1000_calibrate_delay() calculation will be off, potentially a lot. 364 * au1000_calibrate_delay() calculation will be off, potentially a lot.
@@ -428,14 +416,15 @@ static int __init pm_init(void)
428 416
429__initcall(pm_init); 417__initcall(pm_init);
430 418
431
432/* 419/*
433 * This is right out of init/main.c 420 * This is right out of init/main.c
434 */ 421 */
435 422
436/* This is the number of bits of precision for the loops_per_jiffy. Each 423/*
437 bit takes on average 1.5/HZ seconds. This (like the original) is a little 424 * This is the number of bits of precision for the loops_per_jiffy.
438 better than 1% */ 425 * Each bit takes on average 1.5/HZ seconds. This (like the original)
426 * is a little better than 1%.
427 */
439#define LPS_PREC 8 428#define LPS_PREC 8
440 429
441static void au1000_calibrate_delay(void) 430static void au1000_calibrate_delay(void)
@@ -443,14 +432,14 @@ static void au1000_calibrate_delay(void)
443 unsigned long ticks, loopbit; 432 unsigned long ticks, loopbit;
444 int lps_precision = LPS_PREC; 433 int lps_precision = LPS_PREC;
445 434
446 loops_per_jiffy = (1 << 12); 435 loops_per_jiffy = 1 << 12;
447 436
448 while (loops_per_jiffy <<= 1) { 437 while (loops_per_jiffy <<= 1) {
449 /* wait for "start of" clock tick */ 438 /* Wait for "start of" clock tick */
450 ticks = jiffies; 439 ticks = jiffies;
451 while (ticks == jiffies) 440 while (ticks == jiffies)
452 /* nothing */ ; 441 /* nothing */ ;
453 /* Go .. */ 442 /* Go ... */
454 ticks = jiffies; 443 ticks = jiffies;
455 __delay(loops_per_jiffy); 444 __delay(loops_per_jiffy);
456 ticks = jiffies - ticks; 445 ticks = jiffies - ticks;
@@ -458,8 +447,10 @@ static void au1000_calibrate_delay(void)
458 break; 447 break;
459 } 448 }
460 449
461/* Do a binary approximation to get loops_per_jiffy set to equal one clock 450 /*
462 (up to lps_precision bits) */ 451 * Do a binary approximation to get loops_per_jiffy set to be equal
452 * one clock (up to lps_precision bits)
453 */
463 loops_per_jiffy >>= 1; 454 loops_per_jiffy >>= 1;
464 loopbit = loops_per_jiffy; 455 loopbit = loops_per_jiffy;
465 while (lps_precision-- && (loopbit >>= 1)) { 456 while (lps_precision-- && (loopbit >>= 1)) {
@@ -472,4 +463,4 @@ static void au1000_calibrate_delay(void)
472 loops_per_jiffy &= ~loopbit; 463 loops_per_jiffy &= ~loopbit;
473 } 464 }
474} 465}
475#endif /* CONFIG_PM */ 466#endif /* CONFIG_PM */
diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index f10af829e4ec..18b310b475ca 100644
--- a/arch/mips/au1000/common/prom.c
+++ b/arch/mips/au1000/common/prom.c
@@ -3,9 +3,8 @@
3 * BRIEF MODULE DESCRIPTION 3 * BRIEF MODULE DESCRIPTION
4 * PROM library initialisation code, supports YAMON and U-Boot. 4 * PROM library initialisation code, supports YAMON and U-Boot.
5 * 5 *
6 * Copyright 2000, 2001, 2006 MontaVista Software Inc. 6 * Copyright 2000-2001, 2006, 2008 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc. 7 * Author: MontaVista Software, Inc. <source@mvista.com>
8 * ppopov@mvista.com or source@mvista.com
9 * 8 *
10 * This file was derived from Carsten Langgaard's 9 * This file was derived from Carsten Langgaard's
11 * arch/mips/mips-boards/xx files. 10 * arch/mips/mips-boards/xx files.
@@ -57,7 +56,7 @@ void prom_init_cmdline(void)
57 actr = 1; /* Always ignore argv[0] */ 56 actr = 1; /* Always ignore argv[0] */
58 57
59 cp = &(arcs_cmdline[0]); 58 cp = &(arcs_cmdline[0]);
60 while(actr < prom_argc) { 59 while (actr < prom_argc) {
61 strcpy(cp, prom_argv[actr]); 60 strcpy(cp, prom_argv[actr]);
62 cp += strlen(prom_argv[actr]); 61 cp += strlen(prom_argv[actr]);
63 *cp++ = ' '; 62 *cp++ = ' ';
@@ -84,10 +83,8 @@ char *prom_getenv(char *envname)
84 if (yamon) { 83 if (yamon) {
85 if (strcmp(envname, *env++) == 0) 84 if (strcmp(envname, *env++) == 0)
86 return *env; 85 return *env;
87 } else { 86 } else if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
88 if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=') 87 return *env + i + 1;
89 return *env + i + 1;
90 }
91 env++; 88 env++;
92 } 89 }
93 90
@@ -110,13 +107,13 @@ static inline void str2eaddr(unsigned char *ea, unsigned char *str)
110{ 107{
111 int i; 108 int i;
112 109
113 for(i = 0; i < 6; i++) { 110 for (i = 0; i < 6; i++) {
114 unsigned char num; 111 unsigned char num;
115 112
116 if((*str == '.') || (*str == ':')) 113 if ((*str == '.') || (*str == ':'))
117 str++; 114 str++;
118 num = str2hexnum(*str++) << 4; 115 num = str2hexnum(*str++) << 4;
119 num |= (str2hexnum(*str++)); 116 num |= str2hexnum(*str++);
120 ea[i] = num; 117 ea[i] = num;
121 } 118 }
122} 119}
diff --git a/arch/mips/au1000/common/puts.c b/arch/mips/au1000/common/puts.c
index e34c67e89293..55bbe24d45b6 100644
--- a/arch/mips/au1000/common/puts.c
+++ b/arch/mips/au1000/common/puts.c
@@ -1,11 +1,10 @@
1/* 1/*
2 * 2 *
3 * BRIEF MODULE DESCRIPTION 3 * BRIEF MODULE DESCRIPTION
4 * Low level uart routines to directly access a 16550 uart. 4 * Low level UART routines to directly access Alchemy UART.
5 * 5 *
6 * Copyright 2001 MontaVista Software Inc. 6 * Copyright 2001, 2008 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc. 7 * Author: MontaVista Software, Inc. <source@mvista.com>
8 * ppopov@mvista.com or source@mvista.com
9 * 8 *
10 * This program is free software; you can redistribute it and/or modify it 9 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the 10 * under the terms of the GNU General Public License as published by the
@@ -40,12 +39,12 @@
40 39
41static volatile unsigned long * const com1 = (unsigned long *)SERIAL_BASE; 40static volatile unsigned long * const com1 = (unsigned long *)SERIAL_BASE;
42 41
43
44#ifdef SLOW_DOWN 42#ifdef SLOW_DOWN
45static inline void slow_down(void) 43static inline void slow_down(void)
46{ 44{
47 int k; 45 int k;
48 for (k=0; k<10000; k++); 46
47 for (k = 0; k < 10000; k++);
49} 48}
50#else 49#else
51#define slow_down() 50#define slow_down()
@@ -54,16 +53,16 @@ static inline void slow_down(void)
54void 53void
55prom_putchar(const unsigned char c) 54prom_putchar(const unsigned char c)
56{ 55{
57 unsigned char ch; 56 unsigned char ch;
58 int i = 0; 57 int i = 0;
58
59 do {
60 ch = com1[SER_CMD];
61 slow_down();
62 i++;
63 if (i > TIMEOUT)
64 break;
65 } while (0 == (ch & TX_BUSY));
59 66
60 do { 67 com1[SER_DATA] = c;
61 ch = com1[SER_CMD];
62 slow_down();
63 i++;
64 if (i>TIMEOUT) {
65 break;
66 }
67 } while (0 == (ch & TX_BUSY));
68 com1[SER_DATA] = c;
69} 68}
diff --git a/arch/mips/au1000/common/reset.c b/arch/mips/au1000/common/reset.c
index 60cec537c745..d555429c8d6f 100644
--- a/arch/mips/au1000/common/reset.c
+++ b/arch/mips/au1000/common/reset.c
@@ -1,11 +1,10 @@
1/* 1/*
2 * 2 *
3 * BRIEF MODULE DESCRIPTION 3 * BRIEF MODULE DESCRIPTION
4 * Au1000 reset routines. 4 * Au1xx0 reset routines.
5 * 5 *
6 * Copyright 2001 MontaVista Software Inc. 6 * Copyright 2001, 2006, 2008 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc. 7 * Author: MontaVista Software, Inc. <source@mvista.com>
8 * ppopov@mvista.com or source@mvista.com
9 * 8 *
10 * This program is free software; you can redistribute it and/or modify it 9 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the 10 * under the terms of the GNU General Public License as published by the
@@ -28,10 +27,11 @@
28 * 675 Mass Ave, Cambridge, MA 02139, USA. 27 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */ 28 */
30 29
30#include <asm/cacheflush.h>
31
31#include <asm/mach-au1x00/au1000.h> 32#include <asm/mach-au1x00/au1000.h>
32 33
33extern int au_sleep(void); 34extern int au_sleep(void);
34extern void (*flush_cache_all)(void);
35 35
36void au1000_restart(char *command) 36void au1000_restart(char *command)
37{ 37{
@@ -40,8 +40,8 @@ void au1000_restart(char *command)
40 u32 prid = read_c0_prid(); 40 u32 prid = read_c0_prid();
41 41
42 printk(KERN_NOTICE "\n** Resetting Integrated Peripherals\n"); 42 printk(KERN_NOTICE "\n** Resetting Integrated Peripherals\n");
43 switch (prid & 0xFF000000) 43
44 { 44 switch (prid & 0xFF000000) {
45 case 0x00000000: /* Au1000 */ 45 case 0x00000000: /* Au1000 */
46 au_writel(0x02, 0xb0000010); /* ac97_enable */ 46 au_writel(0x02, 0xb0000010); /* ac97_enable */
47 au_writel(0x08, 0xb017fffc); /* usbh_enable - early errata */ 47 au_writel(0x08, 0xb017fffc); /* usbh_enable - early errata */
@@ -138,9 +138,6 @@ void au1000_restart(char *command)
138 au_writel(0x00, 0xb1900064); /* sys_auxpll */ 138 au_writel(0x00, 0xb1900064); /* sys_auxpll */
139 au_writel(0x00, 0xb1900100); /* sys_pininputen */ 139 au_writel(0x00, 0xb1900100); /* sys_pininputen */
140 break; 140 break;
141
142 default:
143 break;
144 } 141 }
145 142
146 set_c0_status(ST0_BEV | ST0_ERL); 143 set_c0_status(ST0_BEV | ST0_ERL);
@@ -158,25 +155,25 @@ void au1000_restart(char *command)
158void au1000_halt(void) 155void au1000_halt(void)
159{ 156{
160#if defined(CONFIG_MIPS_PB1550) || defined(CONFIG_MIPS_DB1550) 157#if defined(CONFIG_MIPS_PB1550) || defined(CONFIG_MIPS_DB1550)
161 /* power off system */ 158 /* Power off system */
162 printk("\n** Powering off...\n"); 159 printk(KERN_NOTICE "\n** Powering off...\n");
163 au_writew(au_readw(0xAF00001C) | (3<<14), 0xAF00001C); 160 au_writew(au_readw(0xAF00001C) | (3 << 14), 0xAF00001C);
164 au_sync(); 161 au_sync();
165 while(1); /* should not get here */ 162 while (1); /* should not get here */
166#else 163#else
167 printk(KERN_NOTICE "\n** You can safely turn off the power\n"); 164 printk(KERN_NOTICE "\n** You can safely turn off the power\n");
168#ifdef CONFIG_MIPS_MIRAGE 165#ifdef CONFIG_MIPS_MIRAGE
169 au_writel((1 << 26) | (1 << 10), GPIO2_OUTPUT); 166 au_writel((1 << 26) | (1 << 10), GPIO2_OUTPUT);
170#endif 167#endif
171#ifdef CONFIG_MIPS_DB1200 168#ifdef CONFIG_MIPS_DB1200
172 au_writew(au_readw(0xB980001C) | (1<<14), 0xB980001C); 169 au_writew(au_readw(0xB980001C) | (1 << 14), 0xB980001C);
173#endif 170#endif
174#ifdef CONFIG_PM 171#ifdef CONFIG_PM
175 au_sleep(); 172 au_sleep();
176 173
177 /* should not get here */ 174 /* Should not get here */
178 printk(KERN_ERR "Unable to put cpu in sleep mode\n"); 175 printk(KERN_ERR "Unable to put CPU in sleep mode\n");
179 while(1); 176 while (1);
180#else 177#else
181 while (1) 178 while (1)
182 __asm__(".set\tmips3\n\t" 179 __asm__(".set\tmips3\n\t"
diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
index 0e86f7a6b4a7..1ac6b06f42a3 100644
--- a/arch/mips/au1000/common/setup.c
+++ b/arch/mips/au1000/common/setup.c
@@ -1,7 +1,6 @@
1/* 1/*
2 * Copyright 2000 MontaVista Software Inc. 2 * Copyright 2000, 2007-2008 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc. 3 * Author: MontaVista Software, Inc. <source@mvista.com
4 * ppopov@mvista.com or source@mvista.com
5 * 4 *
6 * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc. 5 * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
7 * 6 *
@@ -48,7 +47,7 @@ void __init plat_mem_setup(void)
48{ 47{
49 struct cpu_spec *sp; 48 struct cpu_spec *sp;
50 char *argptr; 49 char *argptr;
51 unsigned long prid, cpufreq, bclk = 1; 50 unsigned long prid, cpufreq, bclk;
52 51
53 set_cpuspec(); 52 set_cpuspec();
54 sp = cur_cpu_spec[0]; 53 sp = cur_cpu_spec[0];
@@ -66,42 +65,39 @@ void __init plat_mem_setup(void)
66 cpufreq = (au_readl(SYS_CPUPLL) & 0x3F) * 12; 65 cpufreq = (au_readl(SYS_CPUPLL) & 0x3F) * 12;
67 printk(KERN_INFO "(PRID %08lx) @ %ld MHz\n", prid, cpufreq); 66 printk(KERN_INFO "(PRID %08lx) @ %ld MHz\n", prid, cpufreq);
68 67
69 bclk = sp->cpu_bclk; 68 if (sp->cpu_bclk) {
70 if (bclk)
71 {
72 /* Enable BCLK switching */ 69 /* Enable BCLK switching */
73 bclk = au_readl(0xB190003C); 70 bclk = au_readl(SYS_POWERCTRL);
74 au_writel(bclk | 0x60, 0xB190003C); 71 au_writel(bclk | 0x60, SYS_POWERCTRL);
75 printk("BCLK switching enabled!\n"); 72 printk(KERN_INFO "BCLK switching enabled!\n");
76 } 73 }
77 74
78 if (sp->cpu_od) { 75 if (sp->cpu_od)
79 /* Various early Au1000 Errata corrected by this */ 76 /* Various early Au1xx0 errata corrected by this */
80 set_c0_config(1<<19); /* Set Config[OD] */ 77 set_c0_config(1 << 19); /* Set Config[OD] */
81 } 78 else
82 else {
83 /* Clear to obtain best system bus performance */ 79 /* Clear to obtain best system bus performance */
84 clear_c0_config(1<<19); /* Clear Config[OD] */ 80 clear_c0_config(1 << 19); /* Clear Config[OD] */
85 }
86 81
87 argptr = prom_getcmdline(); 82 argptr = prom_getcmdline();
88 83
89#ifdef CONFIG_SERIAL_8250_CONSOLE 84#ifdef CONFIG_SERIAL_8250_CONSOLE
90 if ((argptr = strstr(argptr, "console=")) == NULL) { 85 argptr = strstr(argptr, "console=");
86 if (argptr == NULL) {
91 argptr = prom_getcmdline(); 87 argptr = prom_getcmdline();
92 strcat(argptr, " console=ttyS0,115200"); 88 strcat(argptr, " console=ttyS0,115200");
93 } 89 }
94#endif 90#endif
95 91
96#ifdef CONFIG_FB_AU1100 92#ifdef CONFIG_FB_AU1100
97 if ((argptr = strstr(argptr, "video=")) == NULL) { 93 argptr = strstr(argptr, "video=");
98 argptr = prom_getcmdline(); 94 if (argptr == NULL) {
99 /* default panel */ 95 argptr = prom_getcmdline();
100 /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/ 96 /* default panel */
101 } 97 /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
98 }
102#endif 99#endif
103 100
104
105#if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000) 101#if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
106 /* au1000 does not support vra, au1500 and au1100 do */ 102 /* au1000 does not support vra, au1500 and au1100 do */
107 strcat(argptr, " au1000_audio=vra"); 103 strcat(argptr, " au1000_audio=vra");
@@ -129,7 +125,7 @@ void __init plat_mem_setup(void)
129/* This routine should be valid for all Au1x based boards */ 125/* This routine should be valid for all Au1x based boards */
130phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size) 126phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
131{ 127{
132 /* Don't fixup 36 bit addresses */ 128 /* Don't fixup 36-bit addresses */
133 if ((phys_addr >> 32) != 0) 129 if ((phys_addr >> 32) != 0)
134 return phys_addr; 130 return phys_addr;
135 131
@@ -145,17 +141,17 @@ phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
145 } 141 }
146#endif 142#endif
147 143
148 /* All Au1x SOCs have a pcmcia controller */ 144 /*
149 /* We setup our 32 bit pseudo addresses to be equal to the 145 * All Au1xx0 SOCs have a PCMCIA controller.
150 * 36 bit addr >> 4, to make it easier to check the address 146 * We setup our 32-bit pseudo addresses to be equal to the
147 * 36-bit addr >> 4, to make it easier to check the address
151 * and fix it. 148 * and fix it.
152 * The Au1x socket 0 phys attribute address is 0xF 4000 0000. 149 * The PCMCIA socket 0 physical attribute address is 0xF 4000 0000.
153 * The pseudo address we use is 0xF400 0000. Any address over 150 * The pseudo address we use is 0xF400 0000. Any address over
154 * 0xF400 0000 is a pcmcia pseudo address. 151 * 0xF400 0000 is a PCMCIA pseudo address.
155 */ 152 */
156 if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) { 153 if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF))
157 return (phys_t)(phys_addr << 4); 154 return (phys_t)(phys_addr << 4);
158 }
159 155
160 /* default nop */ 156 /* default nop */
161 return phys_addr; 157 return phys_addr;
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index bdb6d73b26fb..563d9390a872 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -25,11 +25,9 @@
25 * 25 *
26 * Setting up the clock on the MIPS boards. 26 * Setting up the clock on the MIPS boards.
27 * 27 *
28 * Update. Always configure the kernel with CONFIG_NEW_TIME_C. This 28 * We provide the clock interrupt processing and the timer offset compute
29 * will use the user interface gettimeofday() functions from the 29 * functions. If CONFIG_PM is selected, we also ensure the 32KHz timer is
30 * arch/mips/kernel/time.c, and we provide the clock interrupt processing 30 * available. -- Dan
31 * and the timer offset compute functions. If CONFIG_PM is selected,
32 * we also ensure the 32KHz timer is available. -- Dan
33 */ 31 */
34 32
35#include <linux/types.h> 33#include <linux/types.h>
@@ -47,8 +45,7 @@ extern int allow_au1k_wait; /* default off for CP0 Counter */
47#if HZ < 100 || HZ > 1000 45#if HZ < 100 || HZ > 1000
48#error "unsupported HZ value! Must be in [100,1000]" 46#error "unsupported HZ value! Must be in [100,1000]"
49#endif 47#endif
50#define MATCH20_INC (328*100/HZ) /* magic number 328 is for HZ=100... */ 48#define MATCH20_INC (328 * 100 / HZ) /* magic number 328 is for HZ=100... */
51extern void startup_match20_interrupt(irq_handler_t handler);
52static unsigned long last_pc0, last_match20; 49static unsigned long last_pc0, last_match20;
53#endif 50#endif
54 51
@@ -61,7 +58,7 @@ static irqreturn_t counter0_irq(int irq, void *dev_id)
61{ 58{
62 unsigned long pc0; 59 unsigned long pc0;
63 int time_elapsed; 60 int time_elapsed;
64 static int jiffie_drift = 0; 61 static int jiffie_drift;
65 62
66 if (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20) { 63 if (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20) {
67 /* should never happen! */ 64 /* should never happen! */
@@ -70,13 +67,11 @@ static irqreturn_t counter0_irq(int irq, void *dev_id)
70 } 67 }
71 68
72 pc0 = au_readl(SYS_TOYREAD); 69 pc0 = au_readl(SYS_TOYREAD);
73 if (pc0 < last_match20) { 70 if (pc0 < last_match20)
74 /* counter overflowed */ 71 /* counter overflowed */
75 time_elapsed = (0xffffffff - last_match20) + pc0; 72 time_elapsed = (0xffffffff - last_match20) + pc0;
76 } 73 else
77 else {
78 time_elapsed = pc0 - last_match20; 74 time_elapsed = pc0 - last_match20;
79 }
80 75
81 while (time_elapsed > 0) { 76 while (time_elapsed > 0) {
82 do_timer(1); 77 do_timer(1);
@@ -92,8 +87,9 @@ static irqreturn_t counter0_irq(int irq, void *dev_id)
92 au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2); 87 au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2);
93 au_sync(); 88 au_sync();
94 89
95 /* our counter ticks at 10.009765625 ms/tick, we we're running 90 /*
96 * almost 10uS too slow per tick. 91 * Our counter ticks at 10.009765625 ms/tick, we we're running
92 * almost 10 uS too slow per tick.
97 */ 93 */
98 94
99 if (jiffie_drift >= 999) { 95 if (jiffie_drift >= 999) {
@@ -117,20 +113,17 @@ struct irqaction counter0_action = {
117/* When we wakeup from sleep, we have to "catch up" on all of the 113/* When we wakeup from sleep, we have to "catch up" on all of the
118 * timer ticks we have missed. 114 * timer ticks we have missed.
119 */ 115 */
120void 116void wakeup_counter0_adjust(void)
121wakeup_counter0_adjust(void)
122{ 117{
123 unsigned long pc0; 118 unsigned long pc0;
124 int time_elapsed; 119 int time_elapsed;
125 120
126 pc0 = au_readl(SYS_TOYREAD); 121 pc0 = au_readl(SYS_TOYREAD);
127 if (pc0 < last_match20) { 122 if (pc0 < last_match20)
128 /* counter overflowed */ 123 /* counter overflowed */
129 time_elapsed = (0xffffffff - last_match20) + pc0; 124 time_elapsed = (0xffffffff - last_match20) + pc0;
130 } 125 else
131 else {
132 time_elapsed = pc0 - last_match20; 126 time_elapsed = pc0 - last_match20;
133 }
134 127
135 while (time_elapsed > 0) { 128 while (time_elapsed > 0) {
136 time_elapsed -= MATCH20_INC; 129 time_elapsed -= MATCH20_INC;
@@ -143,10 +136,8 @@ wakeup_counter0_adjust(void)
143 136
144} 137}
145 138
146/* This is just for debugging to set the timer for a sleep delay. 139/* This is just for debugging to set the timer for a sleep delay. */
147*/ 140void wakeup_counter0_set(int ticks)
148void
149wakeup_counter0_set(int ticks)
150{ 141{
151 unsigned long pc0; 142 unsigned long pc0;
152 143
@@ -157,21 +148,22 @@ wakeup_counter0_set(int ticks)
157} 148}
158#endif 149#endif
159 150
160/* I haven't found anyone that doesn't use a 12 MHz source clock, 151/*
152 * I haven't found anyone that doesn't use a 12 MHz source clock,
161 * but just in case..... 153 * but just in case.....
162 */ 154 */
163#define AU1000_SRC_CLK 12000000 155#define AU1000_SRC_CLK 12000000
164 156
165/* 157/*
166 * We read the real processor speed from the PLL. This is important 158 * We read the real processor speed from the PLL. This is important
167 * because it is more accurate than computing it from the 32KHz 159 * because it is more accurate than computing it from the 32 KHz
168 * counter, if it exists. If we don't have an accurate processor 160 * counter, if it exists. If we don't have an accurate processor
169 * speed, all of the peripherals that derive their clocks based on 161 * speed, all of the peripherals that derive their clocks based on
170 * this advertised speed will introduce error and sometimes not work 162 * this advertised speed will introduce error and sometimes not work
171 * properly. This function is futher convoluted to still allow configurations 163 * properly. This function is futher convoluted to still allow configurations
172 * to do that in case they have really, really old silicon with a 164 * to do that in case they have really, really old silicon with a
173 * write-only PLL register, that we need the 32KHz when power management 165 * write-only PLL register, that we need the 32 KHz when power management
174 * "wait" is enabled, and we need to detect if the 32KHz isn't present 166 * "wait" is enabled, and we need to detect if the 32 KHz isn't present
175 * but requested......got it? :-) -- Dan 167 * but requested......got it? :-) -- Dan
176 */ 168 */
177unsigned long calc_clock(void) 169unsigned long calc_clock(void)
@@ -182,8 +174,7 @@ unsigned long calc_clock(void)
182 174
183 spin_lock_irqsave(&time_lock, flags); 175 spin_lock_irqsave(&time_lock, flags);
184 176
185 /* Power management cares if we don't have a 32KHz counter. 177 /* Power management cares if we don't have a 32 KHz counter. */
186 */
187 no_au1xxx_32khz = 0; 178 no_au1xxx_32khz = 0;
188 counter = au_readl(SYS_COUNTER_CNTRL); 179 counter = au_readl(SYS_COUNTER_CNTRL);
189 if (counter & SYS_CNTRL_E0) { 180 if (counter & SYS_CNTRL_E0) {
@@ -193,7 +184,7 @@ unsigned long calc_clock(void)
193 184
194 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S); 185 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S);
195 /* RTC now ticks at 32.768/16 kHz */ 186 /* RTC now ticks at 32.768/16 kHz */
196 au_writel(trim_divide-1, SYS_RTCTRIM); 187 au_writel(trim_divide - 1, SYS_RTCTRIM);
197 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S); 188 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S);
198 189
199 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S); 190 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S);
@@ -215,9 +206,11 @@ unsigned long calc_clock(void)
215#endif 206#endif
216 else 207 else
217 cpu_speed = (au_readl(SYS_CPUPLL) & 0x0000003f) * AU1000_SRC_CLK; 208 cpu_speed = (au_readl(SYS_CPUPLL) & 0x0000003f) * AU1000_SRC_CLK;
209 /* On Alchemy CPU:counter ratio is 1:1 */
218 mips_hpt_frequency = cpu_speed; 210 mips_hpt_frequency = cpu_speed;
219 // Equation: Baudrate = CPU / (SD * 2 * CLKDIV * 16) 211 /* Equation: Baudrate = CPU / (SD * 2 * CLKDIV * 16) */
220 set_au1x00_uart_baud_base(cpu_speed / (2 * ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2) * 16)); 212 set_au1x00_uart_baud_base(cpu_speed / (2 * ((int)(au_readl(SYS_POWERCTRL)
213 & 0x03) + 2) * 16));
221 spin_unlock_irqrestore(&time_lock, flags); 214 spin_unlock_irqrestore(&time_lock, flags);
222 return cpu_speed; 215 return cpu_speed;
223} 216}
@@ -228,10 +221,10 @@ void __init plat_time_init(void)
228 221
229 est_freq += 5000; /* round */ 222 est_freq += 5000; /* round */
230 est_freq -= est_freq%10000; 223 est_freq -= est_freq%10000;
231 printk("CPU frequency %d.%02d MHz\n", est_freq/1000000, 224 printk(KERN_INFO "CPU frequency %u.%02u MHz\n",
232 (est_freq%1000000)*100/1000000); 225 est_freq / 1000000, ((est_freq % 1000000) * 100) / 1000000);
233 set_au1x00_speed(est_freq); 226 set_au1x00_speed(est_freq);
234 set_au1x00_lcd_clock(); // program the LCD clock 227 set_au1x00_lcd_clock(); /* program the LCD clock */
235 228
236#ifdef CONFIG_PM 229#ifdef CONFIG_PM
237 /* 230 /*
@@ -243,30 +236,29 @@ void __init plat_time_init(void)
243 * counter 0 interrupt as a special irq and it doesn't show 236 * counter 0 interrupt as a special irq and it doesn't show
244 * up under /proc/interrupts. 237 * up under /proc/interrupts.
245 * 238 *
246 * Check to ensure we really have a 32KHz oscillator before 239 * Check to ensure we really have a 32 KHz oscillator before
247 * we do this. 240 * we do this.
248 */ 241 */
249 if (no_au1xxx_32khz) 242 if (no_au1xxx_32khz)
250 printk("WARNING: no 32KHz clock found.\n"); 243 printk(KERN_WARNING "WARNING: no 32KHz clock found.\n");
251 else { 244 else {
252 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C0S); 245 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C0S);
253 au_writel(0, SYS_TOYWRITE); 246 au_writel(0, SYS_TOYWRITE);
254 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C0S); 247 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C0S);
255 248
256 au_writel(au_readl(SYS_WAKEMSK) | (1<<8), SYS_WAKEMSK); 249 au_writel(au_readl(SYS_WAKEMSK) | (1 << 8), SYS_WAKEMSK);
257 au_writel(~0, SYS_WAKESRC); 250 au_writel(~0, SYS_WAKESRC);
258 au_sync(); 251 au_sync();
259 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20); 252 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20);
260 253
261 /* setup match20 to interrupt once every HZ */ 254 /* Setup match20 to interrupt once every HZ */
262 last_pc0 = last_match20 = au_readl(SYS_TOYREAD); 255 last_pc0 = last_match20 = au_readl(SYS_TOYREAD);
263 au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2); 256 au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2);
264 au_sync(); 257 au_sync();
265 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20); 258 while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20);
266 setup_irq(AU1000_TOY_MATCH2_INT, &counter0_action); 259 setup_irq(AU1000_TOY_MATCH2_INT, &counter0_action);
267 260
268 /* We can use the real 'wait' instruction. 261 /* We can use the real 'wait' instruction. */
269 */
270 allow_au1k_wait = 1; 262 allow_au1k_wait = 1;
271 } 263 }
272 264
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-08 08:03:53 -0500