diff options
Diffstat (limited to 'kernel/arch/arm/mach-sa1100/pleb.c')
-rw-r--r-- | kernel/arch/arm/mach-sa1100/pleb.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-sa1100/pleb.c b/kernel/arch/arm/mach-sa1100/pleb.c new file mode 100644 index 000000000..1525d7b5f --- /dev/null +++ b/kernel/arch/arm/mach-sa1100/pleb.c @@ -0,0 +1,147 @@ +/* + * linux/arch/arm/mach-sa1100/pleb.c + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/tty.h> +#include <linux/ioport.h> +#include <linux/platform_data/sa11x0-serial.h> +#include <linux/platform_device.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/mtd/partitions.h> +#include <linux/smc91x.h> + +#include <mach/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/flash.h> +#include <mach/irqs.h> + +#include "generic.h" + + +/* + * Ethernet IRQ mappings + */ + +#define PLEB_ETH0_P (0x20000300) /* Ethernet 0 in PCMCIA0 IO */ +#define PLEB_ETH0_V (0xf6000300) + +#define GPIO_ETH0_IRQ GPIO_GPIO(21) +#define GPIO_ETH0_EN GPIO_GPIO(26) + +#define IRQ_GPIO_ETH0_IRQ IRQ_GPIO21 + +static struct resource smc91x_resources[] = { + [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000), +#if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */ + [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ), +#endif +}; + +static struct smc91x_platdata smc91x_platdata = { + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, + .dev = { + .platform_data = &smc91x_platdata, + }, +}; + +static struct platform_device *devices[] __initdata = { + &smc91x_device, +}; + + +/* + * Pleb's memory map + * has flash memory (typically 4 or 8 meg) selected by + * the two SA1100 lowest chip select outputs. + */ +static struct resource pleb_flash_resources[] = { + [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M), + [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M), +}; + + +static struct mtd_partition pleb_partitions[] = { + { + .name = "blob", + .offset = 0, + .size = 0x00020000, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = 0x000e0000, + }, { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = 0x00300000, + } +}; + + +static struct flash_platform_data pleb_flash_data = { + .map_name = "cfi_probe", + .parts = pleb_partitions, + .nr_parts = ARRAY_SIZE(pleb_partitions), +}; + + +static void __init pleb_init(void) +{ + sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources, + ARRAY_SIZE(pleb_flash_resources)); + + + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + + +static void __init pleb_map_io(void) +{ + sa1100_map_io(); + + sa1100_register_uart(0, 3); + sa1100_register_uart(1, 1); + + GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD); + GPDR |= GPIO_UART_TXD; + GPDR &= ~GPIO_UART_RXD; + PPAR |= PPAR_UPR; + + /* + * Fix expansion memory timing for network card + */ + MECR = ((2<<10) | (2<<5) | (2<<0)); + + /* + * Enable the SMC ethernet controller + */ + GPDR |= GPIO_ETH0_EN; /* set to output */ + GPCR = GPIO_ETH0_EN; /* clear MCLK (enable smc) */ + + GPDR &= ~GPIO_ETH0_IRQ; + + irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING); +} + +MACHINE_START(PLEB, "PLEB") + .map_io = pleb_map_io, + .nr_irqs = SA1100_NR_IRQS, + .init_irq = sa1100_init_irq, + .init_time = sa1100_timer_init, + .init_machine = pleb_init, + .init_late = sa11x0_init_late, + .restart = sa11x0_restart, +MACHINE_END |