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>
17 #include <linux/interrupt.h>
19 #include <asm/machdep.h>
20 #include <asm/coldfire.h>
21 #include <asm/mcfsim.h>
22 #include <asm/mcfuart.h>
24 /***************************************************************************/
26 void coldfire_reset(void);
28 /***************************************************************************/
30 static struct mcf_platform_uart m520x_uart_platform[] = {
32 .mapbase = MCF_MBAR + MCFUART_BASE1,
33 .irq = MCFINT_VECBASE + MCFINT_UART0,
36 .mapbase = MCF_MBAR + MCFUART_BASE2,
37 .irq = MCFINT_VECBASE + MCFINT_UART1,
40 .mapbase = MCF_MBAR + MCFUART_BASE3,
41 .irq = MCFINT_VECBASE + MCFINT_UART2,
46 static struct platform_device m520x_uart = {
49 .dev.platform_data = m520x_uart_platform,
52 static struct resource m520x_fec_resources[] = {
54 .start = MCF_MBAR + 0x30000,
55 .end = MCF_MBAR + 0x30000 + 0x7ff,
56 .flags = IORESOURCE_MEM,
61 .flags = IORESOURCE_IRQ,
66 .flags = IORESOURCE_IRQ,
71 .flags = IORESOURCE_IRQ,
75 static struct platform_device m520x_fec = {
78 .num_resources = ARRAY_SIZE(m520x_fec_resources),
79 .resource = m520x_fec_resources,
82 static struct platform_device *m520x_devices[] __initdata = {
87 /***************************************************************************/
89 #define INTC0 (MCF_MBAR + MCFICM_INTC0)
91 static void __init m520x_uart_init_line(int line, int irq)
97 writeb(0x03, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line);
99 imr = readl(INTC0 + MCFINTC_IMRL);
100 imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1);
101 writel(imr, INTC0 + MCFINTC_IMRL);
105 par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
106 par |= MCF_GPIO_PAR_UART_PAR_UTXD0 |
107 MCF_GPIO_PAR_UART_PAR_URXD0;
108 writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
111 par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
112 par |= MCF_GPIO_PAR_UART_PAR_UTXD1 |
113 MCF_GPIO_PAR_UART_PAR_URXD1;
114 writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
117 par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
119 par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 |
120 MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
121 writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
126 static void __init m520x_uarts_init(void)
128 const int nrlines = ARRAY_SIZE(m520x_uart_platform);
131 for (line = 0; (line < nrlines); line++)
132 m520x_uart_init_line(line, m520x_uart_platform[line].irq);
135 /***************************************************************************/
137 static void __init m520x_fec_init(void)
142 /* Unmask FEC interrupts at ColdFire interrupt controller */
143 writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 36);
144 writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 40);
145 writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 42);
147 imr = readl(MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
149 writel(imr, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
151 /* Set multi-function pins to ethernet mode */
152 v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FEC);
153 writeb(v | 0xf0, MCF_IPSBAR + MCF_GPIO_PAR_FEC);
155 v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
156 writeb(v | 0x0f, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
159 /***************************************************************************/
162 * Program the vector to be an auto-vectored.
165 void mcf_autovector(unsigned int vec)
167 /* Everything is auto-vectored on the 520x devices */
170 /***************************************************************************/
172 void __init config_BSP(char *commandp, int size)
174 mach_reset = coldfire_reset;
179 /***************************************************************************/
181 static int __init init_BSP(void)
183 platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
187 arch_initcall(init_BSP);
189 /***************************************************************************/