+++ /dev/null
-/***************************************************************************/
-
-/*
- * linux/arch/m68knommu/platform/528x/config.c
- *
- * Sub-architcture dependant initialization code for the Freescale
- * 5280, 5281 and 5282 CPUs.
- *
- * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
- * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
- */
-
-/***************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/spi/spi.h>
-#include <linux/gpio.h>
-#include <asm/machdep.h>
-#include <asm/coldfire.h>
-#include <asm/mcfsim.h>
-#include <asm/mcfuart.h>
-#include <asm/mcfqspi.h>
-
-/***************************************************************************/
-
-static struct mcf_platform_uart m528x_uart_platform[] = {
- {
- .mapbase = MCFUART_BASE1,
- .irq = MCFINT_VECBASE + MCFINT_UART0,
- },
- {
- .mapbase = MCFUART_BASE2,
- .irq = MCFINT_VECBASE + MCFINT_UART0 + 1,
- },
- {
- .mapbase = MCFUART_BASE3,
- .irq = MCFINT_VECBASE + MCFINT_UART0 + 2,
- },
- { },
-};
-
-static struct platform_device m528x_uart = {
- .name = "mcfuart",
- .id = 0,
- .dev.platform_data = m528x_uart_platform,
-};
-
-static struct resource m528x_fec_resources[] = {
- {
- .start = MCFFEC_BASE,
- .end = MCFFEC_BASE + MCFFEC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = 64 + 23,
- .end = 64 + 23,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = 64 + 27,
- .end = 64 + 27,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = 64 + 29,
- .end = 64 + 29,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device m528x_fec = {
- .name = "fec",
- .id = 0,
- .num_resources = ARRAY_SIZE(m528x_fec_resources),
- .resource = m528x_fec_resources,
-};
-
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
-static struct resource m528x_qspi_resources[] = {
- {
- .start = MCFQSPI_IOBASE,
- .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = MCFINT_VECBASE + MCFINT_QSPI,
- .end = MCFINT_VECBASE + MCFINT_QSPI,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-#define MCFQSPI_CS0 147
-#define MCFQSPI_CS1 148
-#define MCFQSPI_CS2 149
-#define MCFQSPI_CS3 150
-
-static int m528x_cs_setup(struct mcfqspi_cs_control *cs_control)
-{
- int status;
-
- status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
- goto fail0;
- }
- status = gpio_direction_output(MCFQSPI_CS0, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
- goto fail1;
- }
-
- status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
- goto fail1;
- }
- status = gpio_direction_output(MCFQSPI_CS1, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
- goto fail2;
- }
-
- status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
- goto fail2;
- }
- status = gpio_direction_output(MCFQSPI_CS2, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
- goto fail3;
- }
-
- status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
- goto fail3;
- }
- status = gpio_direction_output(MCFQSPI_CS3, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
- goto fail4;
- }
-
- return 0;
-
-fail4:
- gpio_free(MCFQSPI_CS3);
-fail3:
- gpio_free(MCFQSPI_CS2);
-fail2:
- gpio_free(MCFQSPI_CS1);
-fail1:
- gpio_free(MCFQSPI_CS0);
-fail0:
- return status;
-}
-
-static void m528x_cs_teardown(struct mcfqspi_cs_control *cs_control)
-{
- gpio_free(MCFQSPI_CS3);
- gpio_free(MCFQSPI_CS2);
- gpio_free(MCFQSPI_CS1);
- gpio_free(MCFQSPI_CS0);
-}
-
-static void m528x_cs_select(struct mcfqspi_cs_control *cs_control,
- u8 chip_select, bool cs_high)
-{
- gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high);
-}
-
-static void m528x_cs_deselect(struct mcfqspi_cs_control *cs_control,
- u8 chip_select, bool cs_high)
-{
- gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high);
-}
-
-static struct mcfqspi_cs_control m528x_cs_control = {
- .setup = m528x_cs_setup,
- .teardown = m528x_cs_teardown,
- .select = m528x_cs_select,
- .deselect = m528x_cs_deselect,
-};
-
-static struct mcfqspi_platform_data m528x_qspi_data = {
- .bus_num = 0,
- .num_chipselect = 4,
- .cs_control = &m528x_cs_control,
-};
-
-static struct platform_device m528x_qspi = {
- .name = "mcfqspi",
- .id = 0,
- .num_resources = ARRAY_SIZE(m528x_qspi_resources),
- .resource = m528x_qspi_resources,
- .dev.platform_data = &m528x_qspi_data,
-};
-
-static void __init m528x_qspi_init(void)
-{
- /* setup Port QS for QSPI with gpio CS control */
- __raw_writeb(0x07, MCFGPIO_PQSPAR);
-}
-#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
-
-static struct platform_device *m528x_devices[] __initdata = {
- &m528x_uart,
- &m528x_fec,
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
- &m528x_qspi,
-#endif
-};
-
-/***************************************************************************/
-
-static void __init m528x_uart_init_line(int line, int irq)
-{
- u8 port;
-
- if ((line < 0) || (line > 2))
- return;
-
- /* make sure PUAPAR is set for UART0 and UART1 */
- if (line < 2) {
- port = readb(MCF5282_GPIO_PUAPAR);
- port |= (0x03 << (line * 2));
- writeb(port, MCF5282_GPIO_PUAPAR);
- }
-}
-
-static void __init m528x_uarts_init(void)
-{
- const int nrlines = ARRAY_SIZE(m528x_uart_platform);
- int line;
-
- for (line = 0; (line < nrlines); line++)
- m528x_uart_init_line(line, m528x_uart_platform[line].irq);
-}
-
-/***************************************************************************/
-
-static void __init m528x_fec_init(void)
-{
- u16 v16;
-
- /* Set multi-function pins to ethernet mode for fec0 */
- v16 = readw(MCF_IPSBAR + 0x100056);
- writew(v16 | 0xf00, MCF_IPSBAR + 0x100056);
- writeb(0xc0, MCF_IPSBAR + 0x100058);
-}
-
-/***************************************************************************/
-
-static void m528x_cpu_reset(void)
-{
- local_irq_disable();
- __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR);
-}
-
-/***************************************************************************/
-
-#ifdef CONFIG_WILDFIRE
-void wildfire_halt(void)
-{
- writeb(0, 0x30000007);
- writeb(0x2, 0x30000007);
-}
-#endif
-
-#ifdef CONFIG_WILDFIREMOD
-void wildfiremod_halt(void)
-{
- printk(KERN_INFO "WildFireMod hibernating...\n");
-
- /* Set portE.5 to Digital IO */
- MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2));
-
- /* Make portE.5 an output */
- MCF5282_GPIO_DDRE |= (1 << 5);
-
- /* Now toggle portE.5 from low to high */
- MCF5282_GPIO_PORTE &= ~(1 << 5);
- MCF5282_GPIO_PORTE |= (1 << 5);
-
- printk(KERN_EMERG "Failed to hibernate. Halting!\n");
-}
-#endif
-
-void __init config_BSP(char *commandp, int size)
-{
-#ifdef CONFIG_WILDFIRE
- mach_halt = wildfire_halt;
-#endif
-#ifdef CONFIG_WILDFIREMOD
- mach_halt = wildfiremod_halt;
-#endif
-}
-
-/***************************************************************************/
-
-static int __init init_BSP(void)
-{
- mach_reset = m528x_cpu_reset;
- m528x_uarts_init();
- m528x_fec_init();
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
- m528x_qspi_init();
-#endif
- platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices));
- return 0;
-}
-
-arch_initcall(init_BSP);
-
-/***************************************************************************/
git.samba.org / sfrench / cifs-2.6.git / blobdiff