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Diffstat (limited to 'arch/m68k/platform/528x/config.c')
-rw-r--r--arch/m68k/platform/528x/config.c230
1 files changed, 8 insertions, 222 deletions
diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c
index 7abe77a2f3e3..d4492926614c 100644
--- a/arch/m68k/platform/528x/config.c
+++ b/arch/m68k/platform/528x/config.c
@@ -17,229 +17,33 @@
17#include <linux/init.h> 17#include <linux/init.h>
18#include <linux/platform_device.h> 18#include <linux/platform_device.h>
19#include <linux/io.h> 19#include <linux/io.h>
20#include <linux/spi/spi.h>
21#include <linux/gpio.h>
22#include <asm/machdep.h> 20#include <asm/machdep.h>
23#include <asm/coldfire.h> 21#include <asm/coldfire.h>
24#include <asm/mcfsim.h> 22#include <asm/mcfsim.h>
25#include <asm/mcfuart.h> 23#include <asm/mcfuart.h>
26#include <asm/mcfqspi.h>
27 24
28/***************************************************************************/ 25/***************************************************************************/
29 26
30static struct mcf_platform_uart m528x_uart_platform[] = { 27#ifdef CONFIG_SPI_COLDFIRE_QSPI
31 {
32 .mapbase = MCFUART_BASE1,
33 .irq = MCFINT_VECBASE + MCFINT_UART0,
34 },
35 {
36 .mapbase = MCFUART_BASE2,
37 .irq = MCFINT_VECBASE + MCFINT_UART0 + 1,
38 },
39 {
40 .mapbase = MCFUART_BASE3,
41 .irq = MCFINT_VECBASE + MCFINT_UART0 + 2,
42 },
43 { },
44};
45
46static struct platform_device m528x_uart = {
47 .name = "mcfuart",
48 .id = 0,
49 .dev.platform_data = m528x_uart_platform,
50};
51
52static struct resource m528x_fec_resources[] = {
53 {
54 .start = MCFFEC_BASE,
55 .end = MCFFEC_BASE + MCFFEC_SIZE - 1,
56 .flags = IORESOURCE_MEM,
57 },
58 {
59 .start = 64 + 23,
60 .end = 64 + 23,
61 .flags = IORESOURCE_IRQ,
62 },
63 {
64 .start = 64 + 27,
65 .end = 64 + 27,
66 .flags = IORESOURCE_IRQ,
67 },
68 {
69 .start = 64 + 29,
70 .end = 64 + 29,
71 .flags = IORESOURCE_IRQ,
72 },
73};
74
75static struct platform_device m528x_fec = {
76 .name = "fec",
77 .id = 0,
78 .num_resources = ARRAY_SIZE(m528x_fec_resources),
79 .resource = m528x_fec_resources,
80};
81
82#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
83static struct resource m528x_qspi_resources[] = {
84 {
85 .start = MCFQSPI_IOBASE,
86 .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
87 .flags = IORESOURCE_MEM,
88 },
89 {
90 .start = MCFINT_VECBASE + MCFINT_QSPI,
91 .end = MCFINT_VECBASE + MCFINT_QSPI,
92 .flags = IORESOURCE_IRQ,
93 },
94};
95
96#define MCFQSPI_CS0 147
97#define MCFQSPI_CS1 148
98#define MCFQSPI_CS2 149
99#define MCFQSPI_CS3 150
100
101static int m528x_cs_setup(struct mcfqspi_cs_control *cs_control)
102{
103 int status;
104
105 status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
106 if (status) {
107 pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
108 goto fail0;
109 }
110 status = gpio_direction_output(MCFQSPI_CS0, 1);
111 if (status) {
112 pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
113 goto fail1;
114 }
115
116 status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
117 if (status) {
118 pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
119 goto fail1;
120 }
121 status = gpio_direction_output(MCFQSPI_CS1, 1);
122 if (status) {
123 pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
124 goto fail2;
125 }
126
127 status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
128 if (status) {
129 pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
130 goto fail2;
131 }
132 status = gpio_direction_output(MCFQSPI_CS2, 1);
133 if (status) {
134 pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
135 goto fail3;
136 }
137
138 status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
139 if (status) {
140 pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
141 goto fail3;
142 }
143 status = gpio_direction_output(MCFQSPI_CS3, 1);
144 if (status) {
145 pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
146 goto fail4;
147 }
148
149 return 0;
150
151fail4:
152 gpio_free(MCFQSPI_CS3);
153fail3:
154 gpio_free(MCFQSPI_CS2);
155fail2:
156 gpio_free(MCFQSPI_CS1);
157fail1:
158 gpio_free(MCFQSPI_CS0);
159fail0:
160 return status;
161}
162
163static void m528x_cs_teardown(struct mcfqspi_cs_control *cs_control)
164{
165 gpio_free(MCFQSPI_CS3);
166 gpio_free(MCFQSPI_CS2);
167 gpio_free(MCFQSPI_CS1);
168 gpio_free(MCFQSPI_CS0);
169}
170
171static void m528x_cs_select(struct mcfqspi_cs_control *cs_control,
172 u8 chip_select, bool cs_high)
173{
174 gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high);
175}
176
177static void m528x_cs_deselect(struct mcfqspi_cs_control *cs_control,
178 u8 chip_select, bool cs_high)
179{
180 gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high);
181}
182
183static struct mcfqspi_cs_control m528x_cs_control = {
184 .setup = m528x_cs_setup,
185 .teardown = m528x_cs_teardown,
186 .select = m528x_cs_select,
187 .deselect = m528x_cs_deselect,
188};
189
190static struct mcfqspi_platform_data m528x_qspi_data = {
191 .bus_num = 0,
192 .num_chipselect = 4,
193 .cs_control = &m528x_cs_control,
194};
195
196static struct platform_device m528x_qspi = {
197 .name = "mcfqspi",
198 .id = 0,
199 .num_resources = ARRAY_SIZE(m528x_qspi_resources),
200 .resource = m528x_qspi_resources,
201 .dev.platform_data = &m528x_qspi_data,
202};
203 28
204static void __init m528x_qspi_init(void) 29static void __init m528x_qspi_init(void)
205{ 30{
206 /* setup Port QS for QSPI with gpio CS control */ 31 /* setup Port QS for QSPI with gpio CS control */
207 __raw_writeb(0x07, MCFGPIO_PQSPAR); 32 __raw_writeb(0x07, MCFGPIO_PQSPAR);
208} 33}
209#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
210 34
211static struct platform_device *m528x_devices[] __initdata = { 35#endif /* CONFIG_SPI_COLDFIRE_QSPI */
212 &m528x_uart,
213 &m528x_fec,
214#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
215 &m528x_qspi,
216#endif
217};
218 36
219/***************************************************************************/ 37/***************************************************************************/
220 38
221static void __init m528x_uart_init_line(int line, int irq) 39static void __init m528x_uarts_init(void)
222{ 40{
223 u8 port; 41 u8 port;
224 42
225 if ((line < 0) || (line > 2))
226 return;
227
228 /* make sure PUAPAR is set for UART0 and UART1 */ 43 /* make sure PUAPAR is set for UART0 and UART1 */
229 if (line < 2) { 44 port = readb(MCF5282_GPIO_PUAPAR);
230 port = readb(MCF5282_GPIO_PUAPAR); 45 port |= 0x03 | (0x03 << 2);
231 port |= (0x03 << (line * 2)); 46 writeb(port, MCF5282_GPIO_PUAPAR);
232 writeb(port, MCF5282_GPIO_PUAPAR);
233 }
234}
235
236static void __init m528x_uarts_init(void)
237{
238 const int nrlines = ARRAY_SIZE(m528x_uart_platform);
239 int line;
240
241 for (line = 0; (line < nrlines); line++)
242 m528x_uart_init_line(line, m528x_uart_platform[line].irq);
243} 47}
244 48
245/***************************************************************************/ 49/***************************************************************************/
@@ -256,14 +60,6 @@ static void __init m528x_fec_init(void)
256 60
257/***************************************************************************/ 61/***************************************************************************/
258 62
259static void m528x_cpu_reset(void)
260{
261 local_irq_disable();
262 __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR);
263}
264
265/***************************************************************************/
266
267#ifdef CONFIG_WILDFIRE 63#ifdef CONFIG_WILDFIRE
268void wildfire_halt(void) 64void wildfire_halt(void)
269{ 65{
@@ -299,22 +95,12 @@ void __init config_BSP(char *commandp, int size)
299#ifdef CONFIG_WILDFIREMOD 95#ifdef CONFIG_WILDFIREMOD
300 mach_halt = wildfiremod_halt; 96 mach_halt = wildfiremod_halt;
301#endif 97#endif
302} 98 mach_sched_init = hw_timer_init;
303
304/***************************************************************************/
305
306static int __init init_BSP(void)
307{
308 mach_reset = m528x_cpu_reset;
309 m528x_uarts_init(); 99 m528x_uarts_init();
310 m528x_fec_init(); 100 m528x_fec_init();
311#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) 101#ifdef CONFIG_SPI_COLDFIRE_QSPI
312 m528x_qspi_init(); 102 m528x_qspi_init();
313#endif 103#endif
314 platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices));
315 return 0;
316} 104}
317 105
318arch_initcall(init_BSP);
319
320/***************************************************************************/ 106/***************************************************************************/
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-22 15:58:19 -0500