m68k: merge m68k and m68knommu arch directories

There is a lot of common code that could be shared between the m68k
and m68knommu arch branches. It makes sense to merge the two branches
into a single directory structure so that we can more easily share
that common code.

This is a brute force merge, based on a script from Stephen King
<sfking@fdwdc.com>, which was originally written by Arnd Bergmann
<arnd@arndb.de>.

> The script was inspired by the script Sam Ravnborg used to merge the
> includes from m68knommu. For those files common to both arches but
> differing in content, the m68k version of the file is renamed to
> <file>_mm.<ext> and the m68knommu version of the file is moved into the
> corresponding m68k directory and renamed <file>_no.<ext> and a small
> wrapper file <file>.<ext> is used to select between the two version. Files
> that are common to both but don't differ are removed from the m68knommu
> tree and files and directories that are unique to the m68knommu tree are
> moved to the m68k tree. Finally, the arch/m68knommu tree is removed.
>
> To select between the the versions of the files, the wrapper uses
>
> #ifdef CONFIG_MMU
> #include <file>_mm.<ext>
> #else
> #include <file>_no.<ext>
> #endif

On top of this file merge I have done a simplistic merge of m68k and
m68knommu Kconfig, which primarily attempts to keep existing options and
menus in place. Other than a handful of options being moved it produces
identical .config outputs on m68k and m68knommu targets I tested it on.

With this in place there is now quite a bit of scope for merge cleanups
in future patches.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

1 files changed, 311 insertions, 0 deletions

diff --git a/arch/m68k/platform/520x/config.c b/arch/m68k/platform/520x/config.c
new file mode 100644
index 000000000000..621238f1a219
--- /dev/null
+++ b/arch/m68k/platform/520x/config.c
@@ -0,0 +1,311 @@
+/***************************************************************************/
+
+/*
+ *  linux/arch/m68knommu/platform/520x/config.c
+ *
+ *  Copyright (C) 2005,      Freescale (www.freescale.com)
+ *  Copyright (C) 2005,      Intec Automation (mike@steroidmicros.com)
+ *  Copyright (C) 1999-2007, 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/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 m520x_uart_platform[] = {
+	{
+		.mapbase	= MCFUART_BASE1,
+		.irq		= MCFINT_VECBASE + MCFINT_UART0,
+	},
+	{
+		.mapbase 	= MCFUART_BASE2,
+		.irq		= MCFINT_VECBASE + MCFINT_UART1,
+	},
+	{
+		.mapbase 	= MCFUART_BASE3,
+		.irq		= MCFINT_VECBASE + MCFINT_UART2,
+	},
+	{ },
+};
+
+static struct platform_device m520x_uart = {
+	.name			= "mcfuart",
+	.id			= 0,
+	.dev.platform_data	= m520x_uart_platform,
+};
+
+static struct resource m520x_fec_resources[] = {
+	{
+		.start		= MCFFEC_BASE,
+		.end		= MCFFEC_BASE + MCFFEC_SIZE - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= 64 + 36,
+		.end		= 64 + 36,
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= 64 + 40,
+		.end		= 64 + 40,
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= 64 + 42,
+		.end		= 64 + 42,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device m520x_fec = {
+	.name			= "fec",
+	.id			= 0,
+	.num_resources		= ARRAY_SIZE(m520x_fec_resources),
+	.resource		= m520x_fec_resources,
+};
+
+#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
+static struct resource m520x_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    62
+#define MCFQSPI_CS1    63
+#define MCFQSPI_CS2    44
+
+static int m520x_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;
+	}
+
+	return 0;
+
+fail3:
+	gpio_free(MCFQSPI_CS2);
+fail2:
+	gpio_free(MCFQSPI_CS1);
+fail1:
+	gpio_free(MCFQSPI_CS0);
+fail0:
+	return status;
+}
+
+static void m520x_cs_teardown(struct mcfqspi_cs_control *cs_control)
+{
+	gpio_free(MCFQSPI_CS2);
+	gpio_free(MCFQSPI_CS1);
+	gpio_free(MCFQSPI_CS0);
+}
+
+static void m520x_cs_select(struct mcfqspi_cs_control *cs_control,
+			    u8 chip_select, bool cs_high)
+{
+	switch (chip_select) {
+	case 0:
+		gpio_set_value(MCFQSPI_CS0, cs_high);
+		break;
+	case 1:
+		gpio_set_value(MCFQSPI_CS1, cs_high);
+		break;
+	case 2:
+		gpio_set_value(MCFQSPI_CS2, cs_high);
+		break;
+	}
+}
+
+static void m520x_cs_deselect(struct mcfqspi_cs_control *cs_control,
+			      u8 chip_select, bool cs_high)
+{
+	switch (chip_select) {
+	case 0:
+		gpio_set_value(MCFQSPI_CS0, !cs_high);
+		break;
+	case 1:
+		gpio_set_value(MCFQSPI_CS1, !cs_high);
+		break;
+	case 2:
+		gpio_set_value(MCFQSPI_CS2, !cs_high);
+		break;
+	}
+}
+
+static struct mcfqspi_cs_control m520x_cs_control = {
+	.setup                  = m520x_cs_setup,
+	.teardown               = m520x_cs_teardown,
+	.select                 = m520x_cs_select,
+	.deselect               = m520x_cs_deselect,
+};
+
+static struct mcfqspi_platform_data m520x_qspi_data = {
+	.bus_num		= 0,
+	.num_chipselect		= 3,
+	.cs_control		= &m520x_cs_control,
+};
+
+static struct platform_device m520x_qspi = {
+	.name			= "mcfqspi",
+	.id			= 0,
+	.num_resources		= ARRAY_SIZE(m520x_qspi_resources),
+	.resource		= m520x_qspi_resources,
+	.dev.platform_data	= &m520x_qspi_data,
+};
+
+static void __init m520x_qspi_init(void)
+{
+	u16 par;
+	/* setup Port QS for QSPI with gpio CS control */
+	writeb(0x3f, MCF_GPIO_PAR_QSPI);
+	/* make U1CTS and U2RTS gpio for cs_control */
+	par = readw(MCF_GPIO_PAR_UART);
+	par &= 0x00ff;
+	writew(par, MCF_GPIO_PAR_UART);
+}
+#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
+
+
+static struct platform_device *m520x_devices[] __initdata = {
+	&m520x_uart,
+	&m520x_fec,
+#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
+	&m520x_qspi,
+#endif
+};
+
+/***************************************************************************/
+
+static void __init m520x_uart_init_line(int line, int irq)
+{
+	u16 par;
+	u8 par2;
+
+	switch (line) {
+	case 0:
+		par = readw(MCF_GPIO_PAR_UART);
+		par |= MCF_GPIO_PAR_UART_PAR_UTXD0 |
+		       MCF_GPIO_PAR_UART_PAR_URXD0;
+		writew(par, MCF_GPIO_PAR_UART);
+		break;
+	case 1:
+		par = readw(MCF_GPIO_PAR_UART);
+		par |= MCF_GPIO_PAR_UART_PAR_UTXD1 |
+		       MCF_GPIO_PAR_UART_PAR_URXD1;
+		writew(par, MCF_GPIO_PAR_UART);
+		break;
+	case 2:
+		par2 = readb(MCF_GPIO_PAR_FECI2C);
+		par2 &= ~0x0F;
+		par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 |
+			MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
+		writeb(par2, MCF_GPIO_PAR_FECI2C);
+		break;
+	}
+}
+
+static void __init m520x_uarts_init(void)
+{
+	const int nrlines = ARRAY_SIZE(m520x_uart_platform);
+	int line;
+
+	for (line = 0; (line < nrlines); line++)
+		m520x_uart_init_line(line, m520x_uart_platform[line].irq);
+}
+
+/***************************************************************************/
+
+static void __init m520x_fec_init(void)
+{
+	u8 v;
+
+	/* Set multi-function pins to ethernet mode */
+	v = readb(MCF_GPIO_PAR_FEC);
+	writeb(v | 0xf0, MCF_GPIO_PAR_FEC);
+
+	v = readb(MCF_GPIO_PAR_FECI2C);
+	writeb(v | 0x0f, MCF_GPIO_PAR_FECI2C);
+}
+
+/***************************************************************************/
+
+static void m520x_cpu_reset(void)
+{
+	local_irq_disable();
+	__raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+	mach_reset = m520x_cpu_reset;
+	m520x_uarts_init();
+	m520x_fec_init();
+#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
+	m520x_qspi_init();
+#endif
+}
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+	platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
+	return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/