aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k/platform/523x
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/platform/523x')
-rw-r--r--arch/m68k/platform/523x/Makefile17
-rw-r--r--arch/m68k/platform/523x/config.c293
-rw-r--r--arch/m68k/platform/523x/gpio.c284
3 files changed, 594 insertions, 0 deletions
diff --git a/arch/m68k/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile
new file mode 100644
index 000000000000..c04b8f71c88c
--- /dev/null
+++ b/arch/m68k/platform/523x/Makefile
@@ -0,0 +1,17 @@
1#
2# Makefile for the m68knommu linux kernel.
3#
4
5#
6# If you want to play with the HW breakpoints then you will
7# need to add define this, which will give you a stack backtrace
8# on the console port whenever a DBG interrupt occurs. You have to
9# set up you HW breakpoints to trigger a DBG interrupt:
10#
11# ccflags-y := -DTRAP_DBG_INTERRUPT
12# asflags-y := -DTRAP_DBG_INTERRUPT
13#
14
15asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
16
17obj-y := config.o gpio.o
diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c
new file mode 100644
index 000000000000..418a76feb1e3
--- /dev/null
+++ b/arch/m68k/platform/523x/config.c
@@ -0,0 +1,293 @@
1/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/523x/config.c
5 *
6 * Sub-architcture dependant initialization code for the Freescale
7 * 523x CPUs.
8 *
9 * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
10 * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
11 */
12
13/***************************************************************************/
14
15#include <linux/kernel.h>
16#include <linux/param.h>
17#include <linux/init.h>
18#include <linux/io.h>
19#include <linux/spi/spi.h>
20#include <linux/gpio.h>
21#include <asm/machdep.h>
22#include <asm/coldfire.h>
23#include <asm/mcfsim.h>
24#include <asm/mcfuart.h>
25#include <asm/mcfqspi.h>
26
27/***************************************************************************/
28
29static struct mcf_platform_uart m523x_uart_platform[] = {
30 {
31 .mapbase = MCFUART_BASE1,
32 .irq = MCFINT_VECBASE + MCFINT_UART0,
33 },
34 {
35 .mapbase = MCFUART_BASE2,
36 .irq = MCFINT_VECBASE + MCFINT_UART0 + 1,
37 },
38 {
39 .mapbase = MCFUART_BASE3,
40 .irq = MCFINT_VECBASE + MCFINT_UART0 + 2,
41 },
42 { },
43};
44
45static struct platform_device m523x_uart = {
46 .name = "mcfuart",
47 .id = 0,
48 .dev.platform_data = m523x_uart_platform,
49};
50
51static struct resource m523x_fec_resources[] = {
52 {
53 .start = MCFFEC_BASE,
54 .end = MCFFEC_BASE + MCFFEC_SIZE - 1,
55 .flags = IORESOURCE_MEM,
56 },
57 {
58 .start = 64 + 23,
59 .end = 64 + 23,
60 .flags = IORESOURCE_IRQ,
61 },
62 {
63 .start = 64 + 27,
64 .end = 64 + 27,
65 .flags = IORESOURCE_IRQ,
66 },
67 {
68 .start = 64 + 29,
69 .end = 64 + 29,
70 .flags = IORESOURCE_IRQ,
71 },
72};
73
74static struct platform_device m523x_fec = {
75 .name = "fec",
76 .id = 0,
77 .num_resources = ARRAY_SIZE(m523x_fec_resources),
78 .resource = m523x_fec_resources,
79};
80
81#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
82static struct resource m523x_qspi_resources[] = {
83 {
84 .start = MCFQSPI_IOBASE,
85 .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
86 .flags = IORESOURCE_MEM,
87 },
88 {
89 .start = MCFINT_VECBASE + MCFINT_QSPI,
90 .end = MCFINT_VECBASE + MCFINT_QSPI,
91 .flags = IORESOURCE_IRQ,
92 },
93};
94
95#define MCFQSPI_CS0 91
96#define MCFQSPI_CS1 92
97#define MCFQSPI_CS2 103
98#define MCFQSPI_CS3 99
99
100static int m523x_cs_setup(struct mcfqspi_cs_control *cs_control)
101{
102 int status;
103
104 status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
105 if (status) {
106 pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
107 goto fail0;
108 }
109 status = gpio_direction_output(MCFQSPI_CS0, 1);
110 if (status) {
111 pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
112 goto fail1;
113 }
114
115 status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
116 if (status) {
117 pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
118 goto fail1;
119 }
120 status = gpio_direction_output(MCFQSPI_CS1, 1);
121 if (status) {
122 pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
123 goto fail2;
124 }
125
126 status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
127 if (status) {
128 pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
129 goto fail2;
130 }
131 status = gpio_direction_output(MCFQSPI_CS2, 1);
132 if (status) {
133 pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
134 goto fail3;
135 }
136
137 status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
138 if (status) {
139 pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
140 goto fail3;
141 }
142 status = gpio_direction_output(MCFQSPI_CS3, 1);
143 if (status) {
144 pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
145 goto fail4;
146 }
147
148 return 0;
149
150fail4:
151 gpio_free(MCFQSPI_CS3);
152fail3:
153 gpio_free(MCFQSPI_CS2);
154fail2:
155 gpio_free(MCFQSPI_CS1);
156fail1:
157 gpio_free(MCFQSPI_CS0);
158fail0:
159 return status;
160}
161
162static void m523x_cs_teardown(struct mcfqspi_cs_control *cs_control)
163{
164 gpio_free(MCFQSPI_CS3);
165 gpio_free(MCFQSPI_CS2);
166 gpio_free(MCFQSPI_CS1);
167 gpio_free(MCFQSPI_CS0);
168}
169
170static void m523x_cs_select(struct mcfqspi_cs_control *cs_control,
171 u8 chip_select, bool cs_high)
172{
173 switch (chip_select) {
174 case 0:
175 gpio_set_value(MCFQSPI_CS0, cs_high);
176 break;
177 case 1:
178 gpio_set_value(MCFQSPI_CS1, cs_high);
179 break;
180 case 2:
181 gpio_set_value(MCFQSPI_CS2, cs_high);
182 break;
183 case 3:
184 gpio_set_value(MCFQSPI_CS3, cs_high);
185 break;
186 }
187}
188
189static void m523x_cs_deselect(struct mcfqspi_cs_control *cs_control,
190 u8 chip_select, bool cs_high)
191{
192 switch (chip_select) {
193 case 0:
194 gpio_set_value(MCFQSPI_CS0, !cs_high);
195 break;
196 case 1:
197 gpio_set_value(MCFQSPI_CS1, !cs_high);
198 break;
199 case 2:
200 gpio_set_value(MCFQSPI_CS2, !cs_high);
201 break;
202 case 3:
203 gpio_set_value(MCFQSPI_CS3, !cs_high);
204 break;
205 }
206}
207
208static struct mcfqspi_cs_control m523x_cs_control = {
209 .setup = m523x_cs_setup,
210 .teardown = m523x_cs_teardown,
211 .select = m523x_cs_select,
212 .deselect = m523x_cs_deselect,
213};
214
215static struct mcfqspi_platform_data m523x_qspi_data = {
216 .bus_num = 0,
217 .num_chipselect = 4,
218 .cs_control = &m523x_cs_control,
219};
220
221static struct platform_device m523x_qspi = {
222 .name = "mcfqspi",
223 .id = 0,
224 .num_resources = ARRAY_SIZE(m523x_qspi_resources),
225 .resource = m523x_qspi_resources,
226 .dev.platform_data = &m523x_qspi_data,
227};
228
229static void __init m523x_qspi_init(void)
230{
231 u16 par;
232
233 /* setup QSPS pins for QSPI with gpio CS control */
234 writeb(0x1f, MCFGPIO_PAR_QSPI);
235 /* and CS2 & CS3 as gpio */
236 par = readw(MCFGPIO_PAR_TIMER);
237 par &= 0x3f3f;
238 writew(par, MCFGPIO_PAR_TIMER);
239}
240#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
241
242static struct platform_device *m523x_devices[] __initdata = {
243 &m523x_uart,
244 &m523x_fec,
245#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
246 &m523x_qspi,
247#endif
248};
249
250/***************************************************************************/
251
252static void __init m523x_fec_init(void)
253{
254 u16 par;
255 u8 v;
256
257 /* Set multi-function pins to ethernet use */
258 par = readw(MCF_IPSBAR + 0x100082);
259 writew(par | 0xf00, MCF_IPSBAR + 0x100082);
260 v = readb(MCF_IPSBAR + 0x100078);
261 writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
262}
263
264/***************************************************************************/
265
266static void m523x_cpu_reset(void)
267{
268 local_irq_disable();
269 __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR);
270}
271
272/***************************************************************************/
273
274void __init config_BSP(char *commandp, int size)
275{
276 mach_reset = m523x_cpu_reset;
277}
278
279/***************************************************************************/
280
281static int __init init_BSP(void)
282{
283 m523x_fec_init();
284#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
285 m523x_qspi_init();
286#endif
287 platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
288 return 0;
289}
290
291arch_initcall(init_BSP);
292
293/***************************************************************************/
diff --git a/arch/m68k/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c
new file mode 100644
index 000000000000..327ebf142c8e
--- /dev/null
+++ b/arch/m68k/platform/523x/gpio.c
@@ -0,0 +1,284 @@
1/*
2 * Coldfire generic GPIO support
3 *
4 * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14*/
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/coldfire.h>
20#include <asm/mcfsim.h>
21#include <asm/mcfgpio.h>
22
23static struct mcf_gpio_chip mcf_gpio_chips[] = {
24 {
25 .gpio_chip = {
26 .label = "PIRQ",
27 .request = mcf_gpio_request,
28 .free = mcf_gpio_free,
29 .direction_input = mcf_gpio_direction_input,
30 .direction_output = mcf_gpio_direction_output,
31 .get = mcf_gpio_get_value,
32 .set = mcf_gpio_set_value,
33 .base = 1,
34 .ngpio = 7,
35 },
36 .pddr = (void __iomem *) MCFEPORT_EPDDR,
37 .podr = (void __iomem *) MCFEPORT_EPDR,
38 .ppdr = (void __iomem *) MCFEPORT_EPPDR,
39 },
40 {
41 .gpio_chip = {
42 .label = "ADDR",
43 .request = mcf_gpio_request,
44 .free = mcf_gpio_free,
45 .direction_input = mcf_gpio_direction_input,
46 .direction_output = mcf_gpio_direction_output,
47 .get = mcf_gpio_get_value,
48 .set = mcf_gpio_set_value_fast,
49 .base = 13,
50 .ngpio = 3,
51 },
52 .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR,
53 .podr = (void __iomem *) MCFGPIO_PODR_ADDR,
54 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR,
55 .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR,
56 .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR,
57 },
58 {
59 .gpio_chip = {
60 .label = "DATAH",
61 .request = mcf_gpio_request,
62 .free = mcf_gpio_free,
63 .direction_input = mcf_gpio_direction_input,
64 .direction_output = mcf_gpio_direction_output,
65 .get = mcf_gpio_get_value,
66 .set = mcf_gpio_set_value_fast,
67 .base = 16,
68 .ngpio = 8,
69 },
70 .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH,
71 .podr = (void __iomem *) MCFGPIO_PODR_DATAH,
72 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH,
73 .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH,
74 .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH,
75 },
76 {
77 .gpio_chip = {
78 .label = "DATAL",
79 .request = mcf_gpio_request,
80 .free = mcf_gpio_free,
81 .direction_input = mcf_gpio_direction_input,
82 .direction_output = mcf_gpio_direction_output,
83 .get = mcf_gpio_get_value,
84 .set = mcf_gpio_set_value_fast,
85 .base = 24,
86 .ngpio = 8,
87 },
88 .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL,
89 .podr = (void __iomem *) MCFGPIO_PODR_DATAL,
90 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL,
91 .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL,
92 .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL,
93 },
94 {
95 .gpio_chip = {
96 .label = "BUSCTL",
97 .request = mcf_gpio_request,
98 .free = mcf_gpio_free,
99 .direction_input = mcf_gpio_direction_input,
100 .direction_output = mcf_gpio_direction_output,
101 .get = mcf_gpio_get_value,
102 .set = mcf_gpio_set_value_fast,
103 .base = 32,
104 .ngpio = 8,
105 },
106 .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL,
107 .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL,
108 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL,
109 .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL,
110 .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL,
111 },
112 {
113 .gpio_chip = {
114 .label = "BS",
115 .request = mcf_gpio_request,
116 .free = mcf_gpio_free,
117 .direction_input = mcf_gpio_direction_input,
118 .direction_output = mcf_gpio_direction_output,
119 .get = mcf_gpio_get_value,
120 .set = mcf_gpio_set_value_fast,
121 .base = 40,
122 .ngpio = 4,
123 },
124 .pddr = (void __iomem *) MCFGPIO_PDDR_BS,
125 .podr = (void __iomem *) MCFGPIO_PODR_BS,
126 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS,
127 .setr = (void __iomem *) MCFGPIO_PPDSDR_BS,
128 .clrr = (void __iomem *) MCFGPIO_PCLRR_BS,
129 },
130 {
131 .gpio_chip = {
132 .label = "CS",
133 .request = mcf_gpio_request,
134 .free = mcf_gpio_free,
135 .direction_input = mcf_gpio_direction_input,
136 .direction_output = mcf_gpio_direction_output,
137 .get = mcf_gpio_get_value,
138 .set = mcf_gpio_set_value_fast,
139 .base = 49,
140 .ngpio = 7,
141 },
142 .pddr = (void __iomem *) MCFGPIO_PDDR_CS,
143 .podr = (void __iomem *) MCFGPIO_PODR_CS,
144 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS,
145 .setr = (void __iomem *) MCFGPIO_PPDSDR_CS,
146 .clrr = (void __iomem *) MCFGPIO_PCLRR_CS,
147 },
148 {
149 .gpio_chip = {
150 .label = "SDRAM",
151 .request = mcf_gpio_request,
152 .free = mcf_gpio_free,
153 .direction_input = mcf_gpio_direction_input,
154 .direction_output = mcf_gpio_direction_output,
155 .get = mcf_gpio_get_value,
156 .set = mcf_gpio_set_value_fast,
157 .base = 56,
158 .ngpio = 6,
159 },
160 .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM,
161 .podr = (void __iomem *) MCFGPIO_PODR_SDRAM,
162 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM,
163 .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM,
164 .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM,
165 },
166 {
167 .gpio_chip = {
168 .label = "FECI2C",
169 .request = mcf_gpio_request,
170 .free = mcf_gpio_free,
171 .direction_input = mcf_gpio_direction_input,
172 .direction_output = mcf_gpio_direction_output,
173 .get = mcf_gpio_get_value,
174 .set = mcf_gpio_set_value_fast,
175 .base = 64,
176 .ngpio = 4,
177 },
178 .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C,
179 .podr = (void __iomem *) MCFGPIO_PODR_FECI2C,
180 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C,
181 .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C,
182 .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C,
183 },
184 {
185 .gpio_chip = {
186 .label = "UARTH",
187 .request = mcf_gpio_request,
188 .free = mcf_gpio_free,
189 .direction_input = mcf_gpio_direction_input,
190 .direction_output = mcf_gpio_direction_output,
191 .get = mcf_gpio_get_value,
192 .set = mcf_gpio_set_value_fast,
193 .base = 72,
194 .ngpio = 2,
195 },
196 .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH,
197 .podr = (void __iomem *) MCFGPIO_PODR_UARTH,
198 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH,
199 .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH,
200 .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH,
201 },
202 {
203 .gpio_chip = {
204 .label = "UARTL",
205 .request = mcf_gpio_request,
206 .free = mcf_gpio_free,
207 .direction_input = mcf_gpio_direction_input,
208 .direction_output = mcf_gpio_direction_output,
209 .get = mcf_gpio_get_value,
210 .set = mcf_gpio_set_value_fast,
211 .base = 80,
212 .ngpio = 8,
213 },
214 .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL,
215 .podr = (void __iomem *) MCFGPIO_PODR_UARTL,
216 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL,
217 .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL,
218 .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL,
219 },
220 {
221 .gpio_chip = {
222 .label = "QSPI",
223 .request = mcf_gpio_request,
224 .free = mcf_gpio_free,
225 .direction_input = mcf_gpio_direction_input,
226 .direction_output = mcf_gpio_direction_output,
227 .get = mcf_gpio_get_value,
228 .set = mcf_gpio_set_value_fast,
229 .base = 88,
230 .ngpio = 5,
231 },
232 .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI,
233 .podr = (void __iomem *) MCFGPIO_PODR_QSPI,
234 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI,
235 .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI,
236 .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI,
237 },
238 {
239 .gpio_chip = {
240 .label = "TIMER",
241 .request = mcf_gpio_request,
242 .free = mcf_gpio_free,
243 .direction_input = mcf_gpio_direction_input,
244 .direction_output = mcf_gpio_direction_output,
245 .get = mcf_gpio_get_value,
246 .set = mcf_gpio_set_value_fast,
247 .base = 96,
248 .ngpio = 8,
249 },
250 .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER,
251 .podr = (void __iomem *) MCFGPIO_PODR_TIMER,
252 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER,
253 .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER,
254 .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER,
255 },
256 {
257 .gpio_chip = {
258 .label = "ETPU",
259 .request = mcf_gpio_request,
260 .free = mcf_gpio_free,
261 .direction_input = mcf_gpio_direction_input,
262 .direction_output = mcf_gpio_direction_output,
263 .get = mcf_gpio_get_value,
264 .set = mcf_gpio_set_value_fast,
265 .base = 104,
266 .ngpio = 3,
267 },
268 .pddr = (void __iomem *) MCFGPIO_PDDR_ETPU,
269 .podr = (void __iomem *) MCFGPIO_PODR_ETPU,
270 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ETPU,
271 .setr = (void __iomem *) MCFGPIO_PPDSDR_ETPU,
272 .clrr = (void __iomem *) MCFGPIO_PCLRR_ETPU,
273 },
274};
275
276static int __init mcf_gpio_init(void)
277{
278 unsigned i = 0;
279 while (i < ARRAY_SIZE(mcf_gpio_chips))
280 (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
281 return 0;
282}
283
284core_initcall(mcf_gpio_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-03 08:01:35 -0500