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-rw-r--r--arch/sh/boards/se/7343/irq.c232
-rw-r--r--arch/sh/boards/se/7343/setup.c74
2 files changed, 123 insertions, 183 deletions
diff --git a/arch/sh/boards/se/7343/irq.c b/arch/sh/boards/se/7343/irq.c
index 763f6deba814..1112e86aa93a 100644
--- a/arch/sh/boards/se/7343/irq.c
+++ b/arch/sh/boards/se/7343/irq.c
@@ -1,202 +1,80 @@
1/* 1/*
2 * arch/sh/boards/se/7343/irq.c 2 * linux/arch/sh/boards/se/7343/irq.c
3 * 3 *
4 * Copyright (C) 2008 Yoshihiro Shimoda
5 *
6 * Based on linux/arch/sh/boards/se/7722/irq.c
7 * Copyright (C) 2007 Nobuhiro Iwamatsu
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file "COPYING" in the main directory of this archive
11 * for more details.
4 */ 12 */
5#include <linux/init.h> 13#include <linux/init.h>
6#include <linux/interrupt.h>
7#include <linux/irq.h> 14#include <linux/irq.h>
15#include <linux/interrupt.h>
8#include <asm/irq.h> 16#include <asm/irq.h>
9#include <asm/io.h> 17#include <asm/io.h>
10#include <asm/mach/se7343.h> 18#include <asm/se7343.h>
11 19
12static void 20static void disable_se7343_irq(unsigned int irq)
13disable_intreq_irq(unsigned int irq)
14{ 21{
15 int bit = irq - OFFCHIP_IRQ_BASE; 22 unsigned int bit = irq - SE7343_FPGA_IRQ_BASE;
16 u16 val; 23 ctrl_outw(ctrl_inw(PA_CPLD_IMSK) | 1 << bit, PA_CPLD_IMSK);
17
18 val = ctrl_inw(PA_CPLD_IMSK);
19 val |= 1 << bit;
20 ctrl_outw(val, PA_CPLD_IMSK);
21} 24}
22 25
23static void 26static void enable_se7343_irq(unsigned int irq)
24enable_intreq_irq(unsigned int irq)
25{ 27{
26 int bit = irq - OFFCHIP_IRQ_BASE; 28 unsigned int bit = irq - SE7343_FPGA_IRQ_BASE;
27 u16 val; 29 ctrl_outw(ctrl_inw(PA_CPLD_IMSK) & ~(1 << bit), PA_CPLD_IMSK);
28
29 val = ctrl_inw(PA_CPLD_IMSK);
30 val &= ~(1 << bit);
31 ctrl_outw(val, PA_CPLD_IMSK);
32} 30}
33 31
34static void 32static struct irq_chip se7343_irq_chip __read_mostly = {
35mask_and_ack_intreq_irq(unsigned int irq) 33 .name = "SE7343-FPGA",
36{ 34 .mask = disable_se7343_irq,
37 disable_intreq_irq(irq); 35 .unmask = enable_se7343_irq,
38} 36 .mask_ack = disable_se7343_irq,
39
40static unsigned int
41startup_intreq_irq(unsigned int irq)
42{
43 enable_intreq_irq(irq);
44 return 0;
45}
46
47static void
48shutdown_intreq_irq(unsigned int irq)
49{
50 disable_intreq_irq(irq);
51}
52
53static void
54end_intreq_irq(unsigned int irq)
55{
56 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
57 enable_intreq_irq(irq);
58}
59
60static struct hw_interrupt_type intreq_irq_type = {
61 .typename = "FPGA-IRQ",
62 .startup = startup_intreq_irq,
63 .shutdown = shutdown_intreq_irq,
64 .enable = enable_intreq_irq,
65 .disable = disable_intreq_irq,
66 .ack = mask_and_ack_intreq_irq,
67 .end = end_intreq_irq
68}; 37};
69 38
70static void 39static void se7343_irq_demux(unsigned int irq, struct irq_desc *desc)
71make_intreq_irq(unsigned int irq)
72{
73 disable_irq_nosync(irq);
74 irq_desc[irq].chip = &intreq_irq_type;
75 disable_intreq_irq(irq);
76}
77
78int
79shmse_irq_demux(int irq)
80{ 40{
81 int bit; 41 unsigned short intv = ctrl_inw(PA_CPLD_ST);
82 volatile u16 val; 42 struct irq_desc *ext_desc;
83 43 unsigned int ext_irq = SE7343_FPGA_IRQ_BASE;
84 if (irq == IRQ5_IRQ) { 44
85 /* Read status Register */ 45 intv &= (1 << SE7343_FPGA_IRQ_NR) - 1;
86 val = ctrl_inw(PA_CPLD_ST); 46
87 bit = ffs(val); 47 while (intv) {
88 if (bit != 0) 48 if (intv & 1) {
89 return OFFCHIP_IRQ_BASE + bit - 1; 49 ext_desc = irq_desc + ext_irq;
50 handle_level_irq(ext_irq, ext_desc);
51 }
52 intv >>= 1;
53 ext_irq++;
90 } 54 }
91 return irq;
92} 55}
93 56
94/* IRQ5 is multiplexed between the following sources:
95 * 1. PC Card socket
96 * 2. Extension slot
97 * 3. USB Controller
98 * 4. Serial Controller
99 *
100 * We configure IRQ5 as a cascade IRQ.
101 */
102static struct irqaction irq5 = {
103 .handler = no_action,
104 .mask = CPU_MASK_NONE,
105 .name = "IRQ5-cascade",
106};
107
108static struct ipr_data se7343_irq5_ipr_map[] = {
109 { IRQ5_IRQ, IRQ5_IPR_ADDR+2, IRQ5_IPR_POS, IRQ5_PRIORITY },
110};
111static struct ipr_data se7343_siof0_vpu_ipr_map[] = {
112 { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
113 { VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8 },
114};
115static struct ipr_data se7343_other_ipr_map[] = {
116 { DMTE0_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
117 { DMTE1_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
118 { DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
119 { DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
120 { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },
121 { DMTE5_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },
122
123 /* I2C block */
124 { IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY },
125 { IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY },
126 { IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY },
127 { IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY },
128
129 { IIC1_ALI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY },
130 { IIC1_TACKI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY },
131 { IIC1_WAITI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY },
132 { IIC1_DTEI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY },
133
134 /* SIOF */
135 { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
136
137 /* SIU */
138 { SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY },
139
140 /* VIO interrupt */
141 { CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY },
142 { BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY },
143 { VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY },
144
145 /*MFI interrupt*/
146
147 { MFI_IRQ, MFI_IPR_ADDR, MFI_IPR_POS, MFI_PRIORITY },
148
149 /* LCD controller */
150 { LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY },
151};
152
153/* 57/*
154 * Initialize IRQ setting 58 * Initialize IRQ setting
155 */ 59 */
156void __init 60void __init init_7343se_IRQ(void)
157init_7343se_IRQ(void)
158{ 61{
159 /* Setup Multiplexed interrupts */ 62 int i;
160 ctrl_outw(8, PA_CPLD_MODESET); /* Set all CPLD interrupts to active 63
161 * low. 64 ctrl_outw(0, PA_CPLD_IMSK); /* disable all irqs */
162 */ 65 ctrl_outw(0x2000, 0xb03fffec); /* mrshpc irq enable */
163 /* Mask all CPLD controller interrupts */ 66
164 ctrl_outw(0x0fff, PA_CPLD_IMSK); 67 for (i = 0; i < SE7343_FPGA_IRQ_NR; i++)
165 68 set_irq_chip_and_handler_name(SE7343_FPGA_IRQ_BASE + i,
166 /* PC Card interrupts */ 69 &se7343_irq_chip,
167 make_intreq_irq(PC_IRQ0); 70 handle_level_irq, "level");
168 make_intreq_irq(PC_IRQ1); 71
169 make_intreq_irq(PC_IRQ2); 72 set_irq_chained_handler(IRQ0_IRQ, se7343_irq_demux);
170 make_intreq_irq(PC_IRQ3); 73 set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
171 74 set_irq_chained_handler(IRQ1_IRQ, se7343_irq_demux);
172 /* Extension Slot Interrupts */ 75 set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
173 make_intreq_irq(EXT_IRQ0); 76 set_irq_chained_handler(IRQ4_IRQ, se7343_irq_demux);
174 make_intreq_irq(EXT_IRQ1); 77 set_irq_type(IRQ4_IRQ, IRQ_TYPE_LEVEL_LOW);
175 make_intreq_irq(EXT_IRQ2); 78 set_irq_chained_handler(IRQ5_IRQ, se7343_irq_demux);
176 make_intreq_irq(EXT_IRQ3); 79 set_irq_type(IRQ5_IRQ, IRQ_TYPE_LEVEL_LOW);
177
178 /* USB Controller interrupts */
179 make_intreq_irq(USB_IRQ0);
180 make_intreq_irq(USB_IRQ1);
181
182 /* Serial Controller interrupts */
183 make_intreq_irq(UART_IRQ0);
184 make_intreq_irq(UART_IRQ1);
185
186 /* Setup all external interrupts to be active low */
187 ctrl_outw(0xaaaa, INTC_ICR1);
188
189 make_ipr_irq(se7343_irq5_ipr_map, ARRAY_SIZE(se7343_irq5_ipr_map));
190
191 setup_irq(IRQ5_IRQ, &irq5);
192 /* Set port control to use IRQ5 */
193 *(u16 *)0xA4050108 &= ~0xc;
194
195 make_ipr_irq(se7343_siof0_vpu_ipr_map, ARRAY_SIZE(se7343_siof0_vpu_ipr_map));
196
197 ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */
198
199 make_ipr_irq(se7343_other_ipr_map, ARRAY_SIZE(se7343_other_ipr_map));
200
201 ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */
202} 80}
diff --git a/arch/sh/boards/se/7343/setup.c b/arch/sh/boards/se/7343/setup.c
index c9431b3a051b..59d8d94a8c29 100644
--- a/arch/sh/boards/se/7343/setup.c
+++ b/arch/sh/boards/se/7343/setup.c
@@ -1,10 +1,11 @@
1#include <linux/init.h> 1#include <linux/init.h>
2#include <linux/platform_device.h> 2#include <linux/platform_device.h>
3#include <linux/mtd/physmap.h>
3#include <asm/machvec.h> 4#include <asm/machvec.h>
4#include <asm/mach/se7343.h> 5#include <asm/mach/se7343.h>
6#include <asm/heartbeat.h>
5#include <asm/irq.h> 7#include <asm/irq.h>
6 8#include <asm/io.h>
7void init_7343se_IRQ(void);
8 9
9static struct resource smc91x_resources[] = { 10static struct resource smc91x_resources[] = {
10 [0] = { 11 [0] = {
@@ -17,8 +18,8 @@ static struct resource smc91x_resources[] = {
17 * shared with other devices via externel 18 * shared with other devices via externel
18 * interrupt controller in FPGA... 19 * interrupt controller in FPGA...
19 */ 20 */
20 .start = EXT_IRQ2, 21 .start = SMC_IRQ,
21 .end = EXT_IRQ2, 22 .end = SMC_IRQ,
22 .flags = IORESOURCE_IRQ, 23 .flags = IORESOURCE_IRQ,
23 }, 24 },
24}; 25};
@@ -38,16 +39,65 @@ static struct resource heartbeat_resources[] = {
38 }, 39 },
39}; 40};
40 41
42static struct heartbeat_data heartbeat_data = {
43 .regsize = 16,
44};
45
41static struct platform_device heartbeat_device = { 46static struct platform_device heartbeat_device = {
42 .name = "heartbeat", 47 .name = "heartbeat",
43 .id = -1, 48 .id = -1,
49 .dev = {
50 .platform_data = &heartbeat_data,
51 },
44 .num_resources = ARRAY_SIZE(heartbeat_resources), 52 .num_resources = ARRAY_SIZE(heartbeat_resources),
45 .resource = heartbeat_resources, 53 .resource = heartbeat_resources,
46}; 54};
47 55
56static struct mtd_partition nor_flash_partitions[] = {
57 {
58 .name = "loader",
59 .offset = 0x00000000,
60 .size = 128 * 1024,
61 },
62 {
63 .name = "rootfs",
64 .offset = MTDPART_OFS_APPEND,
65 .size = 31 * 1024 * 1024,
66 },
67 {
68 .name = "data",
69 .offset = MTDPART_OFS_APPEND,
70 .size = MTDPART_SIZ_FULL,
71 },
72};
73
74static struct physmap_flash_data nor_flash_data = {
75 .width = 2,
76 .parts = nor_flash_partitions,
77 .nr_parts = ARRAY_SIZE(nor_flash_partitions),
78};
79
80static struct resource nor_flash_resources[] = {
81 [0] = {
82 .start = 0x00000000,
83 .end = 0x01ffffff,
84 .flags = IORESOURCE_MEM,
85 }
86};
87
88static struct platform_device nor_flash_device = {
89 .name = "physmap-flash",
90 .dev = {
91 .platform_data = &nor_flash_data,
92 },
93 .num_resources = ARRAY_SIZE(nor_flash_resources),
94 .resource = nor_flash_resources,
95};
96
48static struct platform_device *sh7343se_platform_devices[] __initdata = { 97static struct platform_device *sh7343se_platform_devices[] __initdata = {
49 &smc91x_device, 98 &smc91x_device,
50 &heartbeat_device, 99 &heartbeat_device,
100 &nor_flash_device,
51}; 101};
52 102
53static int __init sh7343se_devices_setup(void) 103static int __init sh7343se_devices_setup(void)
@@ -55,10 +105,23 @@ static int __init sh7343se_devices_setup(void)
55 return platform_add_devices(sh7343se_platform_devices, 105 return platform_add_devices(sh7343se_platform_devices,
56 ARRAY_SIZE(sh7343se_platform_devices)); 106 ARRAY_SIZE(sh7343se_platform_devices));
57} 107}
108device_initcall(sh7343se_devices_setup);
58 109
110/*
111 * Initialize the board
112 */
59static void __init sh7343se_setup(char **cmdline_p) 113static void __init sh7343se_setup(char **cmdline_p)
60{ 114{
61 device_initcall(sh7343se_devices_setup); 115 ctrl_outw(0xf900, FPGA_OUT); /* FPGA */
116
117 ctrl_outl(0x00001001, MSTPCR0);
118 ctrl_outl(0x00000000, MSTPCR1);
119 ctrl_outl(0xffffbfC0, MSTPCR2); /* LCDC, BEU, CEU, VEU, KEYSC */
120
121 ctrl_outw(0x0002, PORT_PECR); /* PORT E 1 = IRQ5 */
122 ctrl_outw(0x0020, PORT_PSELD);
123
124 printk(KERN_INFO "MS7343CP01 Setup...done\n");
62} 125}
63 126
64/* 127/*
@@ -90,5 +153,4 @@ static struct sh_machine_vector mv_7343se __initmv = {
90 .mv_outsl = sh7343se_outsl, 153 .mv_outsl = sh7343se_outsl,
91 154
92 .mv_init_irq = init_7343se_IRQ, 155 .mv_init_irq = init_7343se_IRQ,
93 .mv_irq_demux = shmse_irq_demux,
94}; 156};
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 09:30:45 -0500