1 /***************************************************************************/
4 * linux/arch/m68knommu/platform/520x/config.c
6 * Copyright (C) 2005, Freescale (www.freescale.com)
7 * Copyright (C) 2005, Intec Automation (mike@steroidmicros.com)
8 * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
9 * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
12 /***************************************************************************/
14 #include <linux/kernel.h>
15 #include <linux/param.h>
16 #include <linux/init.h>
18 #include <asm/machdep.h>
19 #include <asm/coldfire.h>
20 #include <asm/mcfsim.h>
21 #include <asm/mcfuart.h>
23 /***************************************************************************/
25 static struct mcf_platform_uart m520x_uart_platform[] = {
27 .mapbase = MCF_MBAR + MCFUART_BASE1,
28 .irq = MCFINT_VECBASE + MCFINT_UART0,
31 .mapbase = MCF_MBAR + MCFUART_BASE2,
32 .irq = MCFINT_VECBASE + MCFINT_UART1,
35 .mapbase = MCF_MBAR + MCFUART_BASE3,
36 .irq = MCFINT_VECBASE + MCFINT_UART2,
41 static struct platform_device m520x_uart = {
44 .dev.platform_data = m520x_uart_platform,
47 static struct resource m520x_fec_resources[] = {
49 .start = MCF_MBAR + 0x30000,
50 .end = MCF_MBAR + 0x30000 + 0x7ff,
51 .flags = IORESOURCE_MEM,
56 .flags = IORESOURCE_IRQ,
61 .flags = IORESOURCE_IRQ,
66 .flags = IORESOURCE_IRQ,
70 static struct platform_device m520x_fec = {
73 .num_resources = ARRAY_SIZE(m520x_fec_resources),
74 .resource = m520x_fec_resources,
77 static struct platform_device *m520x_devices[] __initdata = {
82 /***************************************************************************/
84 static void __init m520x_uart_init_line(int line, int irq)
91 par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
92 par |= MCF_GPIO_PAR_UART_PAR_UTXD0 |
93 MCF_GPIO_PAR_UART_PAR_URXD0;
94 writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
97 par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
98 par |= MCF_GPIO_PAR_UART_PAR_UTXD1 |
99 MCF_GPIO_PAR_UART_PAR_URXD1;
100 writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
103 par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
105 par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 |
106 MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
107 writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
112 static void __init m520x_uarts_init(void)
114 const int nrlines = ARRAY_SIZE(m520x_uart_platform);
117 for (line = 0; (line < nrlines); line++)
118 m520x_uart_init_line(line, m520x_uart_platform[line].irq);
121 /***************************************************************************/
123 static void __init m520x_fec_init(void)
127 /* Set multi-function pins to ethernet mode */
128 v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FEC);
129 writeb(v | 0xf0, MCF_IPSBAR + MCF_GPIO_PAR_FEC);
131 v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
132 writeb(v | 0x0f, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
135 /***************************************************************************/
137 static void m520x_cpu_reset(void)
140 __raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
143 /***************************************************************************/
145 void __init config_BSP(char *commandp, int size)
147 mach_reset = m520x_cpu_reset;
152 /***************************************************************************/
154 static int __init init_BSP(void)
156 platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
160 arch_initcall(init_BSP);
162 /***************************************************************************/