diff options
author | Greg Ungerer <gerg@uclinux.org> | 2011-03-22 13:39:27 +1000 |
---|---|---|
committer | Greg Ungerer <gerg@uclinux.org> | 2011-03-25 14:05:13 +1000 |
commit | 66d857b08b8c3ed5c72c361f863cce77d2a978d7 (patch) | |
tree | 47222d86f4d78dc0da31baf64188bd2e4b38ac1e /arch/m68k/platform/523x | |
parent | d39dd11c3e6a7af5c20bfac40594db36cf270f42 (diff) |
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>
Diffstat (limited to 'arch/m68k/platform/523x')
-rw-r--r-- | arch/m68k/platform/523x/Makefile | 17 | ||||
-rw-r--r-- | arch/m68k/platform/523x/config.c | 293 | ||||
-rw-r--r-- | arch/m68k/platform/523x/gpio.c | 284 |
3 files changed, 594 insertions, 0 deletions
diff --git a/arch/m68k/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile new file mode 100644 index 00000000000..c04b8f71c88 --- /dev/null +++ b/arch/m68k/platform/523x/Makefile @@ -0,0 +1,17 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c new file mode 100644 index 00000000000..418a76feb1e --- /dev/null +++ b/arch/m68k/platform/523x/config.c @@ -0,0 +1,293 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/523x/config.c + * + * Sub-architcture dependant initialization code for the Freescale + * 523x CPUs. + * + * Copyright (C) 1999-2005, 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 m523x_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 m523x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m523x_uart_platform, +}; + +static struct resource m523x_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 m523x_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m523x_fec_resources), + .resource = m523x_fec_resources, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m523x_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 91 +#define MCFQSPI_CS1 92 +#define MCFQSPI_CS2 103 +#define MCFQSPI_CS3 99 + +static int m523x_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 m523x_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 m523x_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; + case 3: + gpio_set_value(MCFQSPI_CS3, cs_high); + break; + } +} + +static void m523x_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; + case 3: + gpio_set_value(MCFQSPI_CS3, !cs_high); + break; + } +} + +static struct mcfqspi_cs_control m523x_cs_control = { + .setup = m523x_cs_setup, + .teardown = m523x_cs_teardown, + .select = m523x_cs_select, + .deselect = m523x_cs_deselect, +}; + +static struct mcfqspi_platform_data m523x_qspi_data = { + .bus_num = 0, + .num_chipselect = 4, + .cs_control = &m523x_cs_control, +}; + +static struct platform_device m523x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m523x_qspi_resources), + .resource = m523x_qspi_resources, + .dev.platform_data = &m523x_qspi_data, +}; + +static void __init m523x_qspi_init(void) +{ + u16 par; + + /* setup QSPS pins for QSPI with gpio CS control */ + writeb(0x1f, MCFGPIO_PAR_QSPI); + /* and CS2 & CS3 as gpio */ + par = readw(MCFGPIO_PAR_TIMER); + par &= 0x3f3f; + writew(par, MCFGPIO_PAR_TIMER); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + +static struct platform_device *m523x_devices[] __initdata = { + &m523x_uart, + &m523x_fec, +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m523x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m523x_fec_init(void) +{ + u16 par; + u8 v; + + /* Set multi-function pins to ethernet use */ + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xf00, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100078); + writeb(v | 0xc0, MCF_IPSBAR + 0x100078); +} + +/***************************************************************************/ + +static void m523x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m523x_cpu_reset; +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + m523x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m523x_qspi_init(); +#endif + platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c new file mode 100644 index 00000000000..327ebf142c8 --- /dev/null +++ b/arch/m68k/platform/523x/gpio.c @@ -0,0 +1,284 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 1, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "ADDR", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 13, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, + .podr = (void __iomem *) MCFGPIO_PODR_ADDR, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, + }, + { + .gpio_chip = { + .label = "DATAH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH, + .podr = (void __iomem *) MCFGPIO_PODR_DATAH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH, + }, + { + .gpio_chip = { + .label = "DATAL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 24, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL, + .podr = (void __iomem *) MCFGPIO_PODR_DATAL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "BS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BS, + .podr = (void __iomem *) MCFGPIO_PODR_BS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 49, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "SDRAM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 6, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, + .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "UARTH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 2, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, + .podr = (void __iomem *) MCFGPIO_PODR_UARTH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, + }, + { + .gpio_chip = { + .label = "UARTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, + .podr = (void __iomem *) MCFGPIO_PODR_UARTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 5, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "TIMER", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, + .podr = (void __iomem *) MCFGPIO_PODR_TIMER, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, + }, + { + .gpio_chip = { + .label = "ETPU", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 104, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ETPU, + .podr = (void __iomem *) MCFGPIO_PODR_ETPU, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ETPU, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); |