diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/m68knommu/platform/528x/config.c | 86 |
1 files changed, 77 insertions, 9 deletions
diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68knommu/platform/528x/config.c index acbd43486d97..036e1b73d944 100644 --- a/arch/m68knommu/platform/528x/config.c +++ b/arch/m68knommu/platform/528x/config.c | |||
@@ -16,11 +16,15 @@ | |||
16 | #include <linux/param.h> | 16 | #include <linux/param.h> |
17 | #include <linux/init.h> | 17 | #include <linux/init.h> |
18 | #include <linux/interrupt.h> | 18 | #include <linux/interrupt.h> |
19 | #include <asm/dma.h> | 19 | #include <linux/platform_device.h> |
20 | #include <linux/spi/spi.h> | ||
21 | #include <linux/spi/flash.h> | ||
22 | #include <linux/io.h> | ||
20 | #include <asm/machdep.h> | 23 | #include <asm/machdep.h> |
21 | #include <asm/coldfire.h> | 24 | #include <asm/coldfire.h> |
22 | #include <asm/mcfsim.h> | 25 | #include <asm/mcfsim.h> |
23 | #include <asm/mcfdma.h> | 26 | #include <asm/mcfuart.h> |
27 | #include <asm/mcfqspi.h> | ||
24 | 28 | ||
25 | /***************************************************************************/ | 29 | /***************************************************************************/ |
26 | 30 | ||
@@ -28,14 +32,67 @@ void coldfire_reset(void); | |||
28 | 32 | ||
29 | /***************************************************************************/ | 33 | /***************************************************************************/ |
30 | 34 | ||
31 | /* | 35 | static struct mcf_platform_uart m528x_uart_platform[] = { |
32 | * DMA channel base address table. | 36 | { |
33 | */ | 37 | .mapbase = MCF_MBAR + MCFUART_BASE1, |
34 | unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { | 38 | .irq = MCFINT_VECBASE + MCFINT_UART0, |
35 | MCF_MBAR + MCFDMA_BASE0, | 39 | }, |
40 | { | ||
41 | .mapbase = MCF_MBAR + MCFUART_BASE2, | ||
42 | .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, | ||
43 | }, | ||
44 | { | ||
45 | .mapbase = MCF_MBAR + MCFUART_BASE3, | ||
46 | .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, | ||
47 | }, | ||
48 | { }, | ||
36 | }; | 49 | }; |
37 | 50 | ||
38 | unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; | 51 | static struct platform_device m528x_uart = { |
52 | .name = "mcfuart", | ||
53 | .id = 0, | ||
54 | .dev.platform_data = m528x_uart_platform, | ||
55 | }; | ||
56 | |||
57 | static struct platform_device *m528x_devices[] __initdata = { | ||
58 | &m528x_uart, | ||
59 | }; | ||
60 | |||
61 | /***************************************************************************/ | ||
62 | |||
63 | #define INTC0 (MCF_MBAR + MCFICM_INTC0) | ||
64 | |||
65 | static void __init m528x_uart_init_line(int line, int irq) | ||
66 | { | ||
67 | u8 port; | ||
68 | u32 imr; | ||
69 | |||
70 | if ((line < 0) || (line > 2)) | ||
71 | return; | ||
72 | |||
73 | /* level 6, line based priority */ | ||
74 | writeb(0x30+line, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line); | ||
75 | |||
76 | imr = readl(INTC0 + MCFINTC_IMRL); | ||
77 | imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); | ||
78 | writel(imr, INTC0 + MCFINTC_IMRL); | ||
79 | |||
80 | /* make sure PUAPAR is set for UART0 and UART1 */ | ||
81 | if (line < 2) { | ||
82 | port = readb(MCF_MBAR + MCF5282_GPIO_PUAPAR); | ||
83 | port |= (0x03 << (line * 2)); | ||
84 | writeb(port, MCF_MBAR + MCF5282_GPIO_PUAPAR); | ||
85 | } | ||
86 | } | ||
87 | |||
88 | static void __init m528x_uarts_init(void) | ||
89 | { | ||
90 | const int nrlines = ARRAY_SIZE(m528x_uart_platform); | ||
91 | int line; | ||
92 | |||
93 | for (line = 0; (line < nrlines); line++) | ||
94 | m528x_uart_init_line(line, m528x_uart_platform[line].irq); | ||
95 | } | ||
39 | 96 | ||
40 | /***************************************************************************/ | 97 | /***************************************************************************/ |
41 | 98 | ||
@@ -54,10 +111,21 @@ void mcf_autovector(unsigned int vec) | |||
54 | 111 | ||
55 | /***************************************************************************/ | 112 | /***************************************************************************/ |
56 | 113 | ||
57 | void config_BSP(char *commandp, int size) | 114 | void __init config_BSP(char *commandp, int size) |
58 | { | 115 | { |
59 | mcf_disableall(); | 116 | mcf_disableall(); |
60 | mach_reset = coldfire_reset; | 117 | mach_reset = coldfire_reset; |
61 | } | 118 | } |
62 | 119 | ||
63 | /***************************************************************************/ | 120 | /***************************************************************************/ |
121 | |||
122 | static int __init init_BSP(void) | ||
123 | { | ||
124 | m528x_uarts_init(); | ||
125 | platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices)); | ||
126 | return 0; | ||
127 | } | ||
128 | |||
129 | arch_initcall(init_BSP); | ||
130 | |||
131 | /***************************************************************************/ | ||