Linux Kernel  3.7.1
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m5249.c
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1 /***************************************************************************/
2 
3 /*
4  * linux/arch/m68knommu/platform/5249/config.c
5  *
6  * Copyright (C) 2002, Greg Ungerer ([email protected])
7  */
8 
9 /***************************************************************************/
10 
11 #include <linux/kernel.h>
12 #include <linux/param.h>
13 #include <linux/init.h>
14 #include <linux/io.h>
15 #include <linux/platform_device.h>
16 #include <asm/machdep.h>
17 #include <asm/coldfire.h>
18 #include <asm/mcfsim.h>
19 
20 /***************************************************************************/
21 
22 #ifdef CONFIG_M5249C3
23 
24 static struct resource m5249_smc91x_resources[] = {
25  {
26  .start = 0xe0000300,
27  .end = 0xe0000300 + 0x100,
28  .flags = IORESOURCE_MEM,
29  },
30  {
31  .start = MCFINTC2_GPIOIRQ6,
32  .end = MCFINTC2_GPIOIRQ6,
33  .flags = IORESOURCE_IRQ,
34  },
35 };
36 
37 static struct platform_device m5249_smc91x = {
38  .name = "smc91x",
39  .id = 0,
40  .num_resources = ARRAY_SIZE(m5249_smc91x_resources),
41  .resource = m5249_smc91x_resources,
42 };
43 
44 #endif /* CONFIG_M5249C3 */
45 
46 static struct platform_device *m5249_devices[] __initdata = {
47 #ifdef CONFIG_M5249C3
48  &m5249_smc91x,
49 #endif
50 };
51 
52 /***************************************************************************/
53 
54 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
55 
56 static void __init m5249_qspi_init(void)
57 {
58  /* QSPI irq setup */
59  writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
60  MCFSIM_QSPIICR);
61  mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
62 }
63 
64 #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
65 
66 /***************************************************************************/
67 
68 #ifdef CONFIG_M5249C3
69 
70 static void __init m5249_smc91x_init(void)
71 {
72  u32 gpio;
73 
74  /* Set the GPIO line as interrupt source for smc91x device */
75  gpio = readl(MCFSIM2_GPIOINTENABLE);
76  writel(gpio | 0x40, MCFSIM2_GPIOINTENABLE);
77 
78  gpio = readl(MCFSIM2_INTLEVEL5);
79  writel(gpio | 0x04000000, MCFSIM2_INTLEVEL5);
80 }
81 
82 #endif /* CONFIG_M5249C3 */
83 
84 /***************************************************************************/
85 
86 void __init config_BSP(char *commandp, int size)
87 {
88  mach_sched_init = hw_timer_init;
89 
90 #ifdef CONFIG_M5249C3
91  m5249_smc91x_init();
92 #endif
93 #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
94  m5249_qspi_init();
95 #endif
96 }
97 
98 /***************************************************************************/
99 
100 static int __init init_BSP(void)
101 {
102  platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
103  return 0;
104 }
105 
106 arch_initcall(init_BSP);
107 
108 /***************************************************************************/
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