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-rw-r--r--arch/mips/momentum/ocelot_3/Makefile2
-rw-r--r--arch/mips/momentum/ocelot_3/platform.c235
-rw-r--r--arch/mips/momentum/ocelot_3/prom.c58
-rw-r--r--arch/mips/momentum/ocelot_3/setup.c2
4 files changed, 237 insertions, 60 deletions
diff --git a/arch/mips/momentum/ocelot_3/Makefile b/arch/mips/momentum/ocelot_3/Makefile
index 8bcea64dd27b..d5a090a85a15 100644
--- a/arch/mips/momentum/ocelot_3/Makefile
+++ b/arch/mips/momentum/ocelot_3/Makefile
@@ -5,4 +5,4 @@
5# removes any old dependencies. DON'T put your own dependencies here 5# removes any old dependencies. DON'T put your own dependencies here
6# unless it's something special (ie not a .c file). 6# unless it's something special (ie not a .c file).
7# 7#
8obj-y += irq.o prom.o reset.o setup.o 8obj-y += irq.o platform.o prom.o reset.o setup.o
diff --git a/arch/mips/momentum/ocelot_3/platform.c b/arch/mips/momentum/ocelot_3/platform.c
new file mode 100644
index 000000000000..eefe5841fbb2
--- /dev/null
+++ b/arch/mips/momentum/ocelot_3/platform.c
@@ -0,0 +1,235 @@
1#include <linux/delay.h>
2#include <linux/if_ether.h>
3#include <linux/ioport.h>
4#include <linux/mv643xx.h>
5#include <linux/platform_device.h>
6
7#include "ocelot_3_fpga.h"
8
9#if defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE)
10
11static struct resource mv643xx_eth_shared_resources[] = {
12 [0] = {
13 .name = "ethernet shared base",
14 .start = 0xf1000000 + MV643XX_ETH_SHARED_REGS,
15 .end = 0xf1000000 + MV643XX_ETH_SHARED_REGS +
16 MV643XX_ETH_SHARED_REGS_SIZE - 1,
17 .flags = IORESOURCE_MEM,
18 },
19};
20
21static struct platform_device mv643xx_eth_shared_device = {
22 .name = MV643XX_ETH_SHARED_NAME,
23 .id = 0,
24 .num_resources = ARRAY_SIZE(mv643xx_eth_shared_resources),
25 .resource = mv643xx_eth_shared_resources,
26};
27
28#define MV_SRAM_BASE 0xfe000000UL
29#define MV_SRAM_SIZE (256 * 1024)
30
31#define MV_SRAM_RXRING_SIZE (MV_SRAM_SIZE / 4)
32#define MV_SRAM_TXRING_SIZE (MV_SRAM_SIZE / 4)
33
34#define MV_SRAM_BASE_ETH0 MV_SRAM_BASE
35#define MV_SRAM_BASE_ETH1 (MV_SRAM_BASE + (MV_SRAM_SIZE / 2))
36
37#define MV64x60_IRQ_ETH_0 48
38#define MV64x60_IRQ_ETH_1 49
39#define MV64x60_IRQ_ETH_2 50
40
41#ifdef CONFIG_MV643XX_ETH_0
42
43static struct resource mv64x60_eth0_resources[] = {
44 [0] = {
45 .name = "eth0 irq",
46 .start = MV64x60_IRQ_ETH_0,
47 .end = MV64x60_IRQ_ETH_0,
48 .flags = IORESOURCE_IRQ,
49 },
50};
51
52static char eth0_mac_addr[ETH_ALEN];
53
54static struct mv643xx_eth_platform_data eth0_pd = {
55 .mac_addr = eth0_mac_addr,
56
57 .tx_sram_addr = MV_SRAM_BASE_ETH0,
58 .tx_sram_size = MV_SRAM_TXRING_SIZE,
59 .tx_queue_size = MV_SRAM_TXRING_SIZE / 16,
60
61 .rx_sram_addr = MV_SRAM_BASE_ETH0 + MV_SRAM_TXRING_SIZE,
62 .rx_sram_size = MV_SRAM_RXRING_SIZE,
63 .rx_queue_size = MV_SRAM_RXRING_SIZE / 16,
64};
65
66static struct platform_device eth0_device = {
67 .name = MV643XX_ETH_NAME,
68 .id = 0,
69 .num_resources = ARRAY_SIZE(mv64x60_eth0_resources),
70 .resource = mv64x60_eth0_resources,
71 .dev = {
72 .platform_data = &eth0_pd,
73 },
74};
75#endif /* CONFIG_MV643XX_ETH_0 */
76
77#ifdef CONFIG_MV643XX_ETH_1
78
79static struct resource mv64x60_eth1_resources[] = {
80 [0] = {
81 .name = "eth1 irq",
82 .start = MV64x60_IRQ_ETH_1,
83 .end = MV64x60_IRQ_ETH_1,
84 .flags = IORESOURCE_IRQ,
85 },
86};
87
88static char eth1_mac_addr[ETH_ALEN];
89
90static struct mv643xx_eth_platform_data eth1_pd = {
91 .mac_addr = eth1_mac_addr,
92
93 .tx_sram_addr = MV_SRAM_BASE_ETH1,
94 .tx_sram_size = MV_SRAM_TXRING_SIZE,
95 .tx_queue_size = MV_SRAM_TXRING_SIZE / 16,
96
97 .rx_sram_addr = MV_SRAM_BASE_ETH1 + MV_SRAM_TXRING_SIZE,
98 .rx_sram_size = MV_SRAM_RXRING_SIZE,
99 .rx_queue_size = MV_SRAM_RXRING_SIZE / 16,
100};
101
102static struct platform_device eth1_device = {
103 .name = MV643XX_ETH_NAME,
104 .id = 1,
105 .num_resources = ARRAY_SIZE(mv64x60_eth1_resources),
106 .resource = mv64x60_eth1_resources,
107 .dev = {
108 .platform_data = &eth1_pd,
109 },
110};
111#endif /* CONFIG_MV643XX_ETH_1 */
112
113#ifdef CONFIG_MV643XX_ETH_2
114
115static struct resource mv64x60_eth2_resources[] = {
116 [0] = {
117 .name = "eth2 irq",
118 .start = MV64x60_IRQ_ETH_2,
119 .end = MV64x60_IRQ_ETH_2,
120 .flags = IORESOURCE_IRQ,
121 },
122};
123
124static char eth2_mac_addr[ETH_ALEN];
125
126static struct mv643xx_eth_platform_data eth2_pd = {
127 .mac_addr = eth2_mac_addr,
128};
129
130static struct platform_device eth2_device = {
131 .name = MV643XX_ETH_NAME,
132 .id = 1,
133 .num_resources = ARRAY_SIZE(mv64x60_eth2_resources),
134 .resource = mv64x60_eth2_resources,
135 .dev = {
136 .platform_data = &eth2_pd,
137 },
138};
139#endif /* CONFIG_MV643XX_ETH_2 */
140
141static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
142 &mv643xx_eth_shared_device,
143#ifdef CONFIG_MV643XX_ETH_0
144 &eth0_device,
145#endif
146#ifdef CONFIG_MV643XX_ETH_1
147 &eth1_device,
148#endif
149#ifdef CONFIG_MV643XX_ETH_2
150 &eth2_device,
151#endif
152};
153
154static u8 __init exchange_bit(u8 val, u8 cs)
155{
156 /* place the data */
157 OCELOT_FPGA_WRITE((val << 2) | cs, EEPROM_MODE);
158 udelay(1);
159
160 /* turn the clock on */
161 OCELOT_FPGA_WRITE((val << 2) | cs | 0x2, EEPROM_MODE);
162 udelay(1);
163
164 /* turn the clock off and read-strobe */
165 OCELOT_FPGA_WRITE((val << 2) | cs | 0x10, EEPROM_MODE);
166
167 /* return the data */
168 return (OCELOT_FPGA_READ(EEPROM_MODE) >> 3) & 0x1;
169}
170
171static void __init get_mac(char dest[6])
172{
173 u8 read_opcode[12] = {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
174 int i,j;
175
176 for (i = 0; i < 12; i++)
177 exchange_bit(read_opcode[i], 1);
178
179 for (j = 0; j < 6; j++) {
180 dest[j] = 0;
181 for (i = 0; i < 8; i++) {
182 dest[j] <<= 1;
183 dest[j] |= exchange_bit(0, 1);
184 }
185 }
186
187 /* turn off CS */
188 exchange_bit(0,0);
189}
190
191/*
192 * Copy and increment ethernet MAC address by a small value.
193 *
194 * This is useful for systems where the only one MAC address is stored in
195 * non-volatile memory for multiple ports.
196 */
197static inline void eth_mac_add(unsigned char *dst, unsigned char *src,
198 unsigned int add)
199{
200 int i;
201
202 BUG_ON(add >= 256);
203
204 for (i = ETH_ALEN; i >= 0; i--) {
205 dst[i] = src[i] + add;
206 add = dst[i] < src[i]; /* compute carry */
207 }
208
209 WARN_ON(add);
210}
211
212static int __init mv643xx_eth_add_pds(void)
213{
214 unsigned char mac[ETH_ALEN];
215 int ret;
216
217 get_mac(mac);
218#ifdef CONFIG_MV643XX_ETH_0
219 eth_mac_add(eth1_mac_addr, mac, 0);
220#endif
221#ifdef CONFIG_MV643XX_ETH_1
222 eth_mac_add(eth1_mac_addr, mac, 1);
223#endif
224#ifdef CONFIG_MV643XX_ETH_2
225 eth_mac_add(eth2_mac_addr, mac, 2);
226#endif
227 ret = platform_add_devices(mv643xx_eth_pd_devs,
228 ARRAY_SIZE(mv643xx_eth_pd_devs));
229
230 return ret;
231}
232
233device_initcall(mv643xx_eth_add_pds);
234
235#endif /* defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE) */
diff --git a/arch/mips/momentum/ocelot_3/prom.c b/arch/mips/momentum/ocelot_3/prom.c
index 296d945bc248..6ce9b7fdb824 100644
--- a/arch/mips/momentum/ocelot_3/prom.c
+++ b/arch/mips/momentum/ocelot_3/prom.c
@@ -34,64 +34,11 @@ struct callvectors* debug_vectors;
34extern unsigned long marvell_base; 34extern unsigned long marvell_base;
35extern unsigned long cpu_clock; 35extern unsigned long cpu_clock;
36 36
37#ifdef CONFIG_MV643XX_ETH
38extern unsigned char prom_mac_addr_base[6];
39#endif
40
41const char *get_system_type(void) 37const char *get_system_type(void)
42{ 38{
43 return "Momentum Ocelot-3"; 39 return "Momentum Ocelot-3";
44} 40}
45 41
46#ifdef CONFIG_MV643XX_ETH
47void burn_clocks(void)
48{
49 int i;
50
51 /* this loop should burn at least 1us -- this should be plenty */
52 for (i = 0; i < 0x10000; i++)
53 ;
54}
55
56u8 exchange_bit(u8 val, u8 cs)
57{
58 /* place the data */
59 OCELOT_FPGA_WRITE((val << 2) | cs, EEPROM_MODE);
60 burn_clocks();
61
62 /* turn the clock on */
63 OCELOT_FPGA_WRITE((val << 2) | cs | 0x2, EEPROM_MODE);
64 burn_clocks();
65
66 /* turn the clock off and read-strobe */
67 OCELOT_FPGA_WRITE((val << 2) | cs | 0x10, EEPROM_MODE);
68
69 /* return the data */
70 return ((OCELOT_FPGA_READ(EEPROM_MODE) >> 3) & 0x1);
71}
72
73void get_mac(char dest[6])
74{
75 u8 read_opcode[12] = {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
76 int i,j;
77
78 for (i = 0; i < 12; i++)
79 exchange_bit(read_opcode[i], 1);
80
81 for (j = 0; j < 6; j++) {
82 dest[j] = 0;
83 for (i = 0; i < 8; i++) {
84 dest[j] <<= 1;
85 dest[j] |= exchange_bit(0, 1);
86 }
87 }
88
89 /* turn off CS */
90 exchange_bit(0,0);
91}
92#endif
93
94
95#ifdef CONFIG_64BIT 42#ifdef CONFIG_64BIT
96 43
97unsigned long signext(unsigned long addr) 44unsigned long signext(unsigned long addr)
@@ -228,11 +175,6 @@ void __init prom_init(void)
228 mips_machgroup = MACH_GROUP_MOMENCO; 175 mips_machgroup = MACH_GROUP_MOMENCO;
229 mips_machtype = MACH_MOMENCO_OCELOT_3; 176 mips_machtype = MACH_MOMENCO_OCELOT_3;
230 177
231#ifdef CONFIG_MV643XX_ETH
232 /* get the base MAC address for on-board ethernet ports */
233 get_mac(prom_mac_addr_base);
234#endif
235
236#ifndef CONFIG_64BIT 178#ifndef CONFIG_64BIT
237 debug_vectors->printf("Booting Linux kernel...\n"); 179 debug_vectors->printf("Booting Linux kernel...\n");
238#endif 180#endif
diff --git a/arch/mips/momentum/ocelot_3/setup.c b/arch/mips/momentum/ocelot_3/setup.c
index 7d74f8c54129..ff0829f81116 100644
--- a/arch/mips/momentum/ocelot_3/setup.c
+++ b/arch/mips/momentum/ocelot_3/setup.c
@@ -4,7 +4,7 @@
4 * BRIEF MODULE DESCRIPTION 4 * BRIEF MODULE DESCRIPTION
5 * Momentum Computer Ocelot-3 board dependent boot routines 5 * Momentum Computer Ocelot-3 board dependent boot routines
6 * 6 *
7 * Copyright (C) 1996, 1997, 01, 05 Ralf Baechle 7 * Copyright (C) 1996, 1997, 01, 05 - 06 Ralf Baechle
8 * Copyright (C) 2000 RidgeRun, Inc. 8 * Copyright (C) 2000 RidgeRun, Inc.
9 * Copyright (C) 2001 Red Hat, Inc. 9 * Copyright (C) 2001 Red Hat, Inc.
10 * Copyright (C) 2002 Momentum Computer 10 * Copyright (C) 2002 Momentum Computer
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-01 00:42:46 -0500