149 lines
3.1 KiB
C
Executable File
149 lines
3.1 KiB
C
Executable File
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/arm/mach-sa1100/pleb.c
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/tty.h>
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#include <linux/ioport.h>
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#include <linux/platform_data/sa11x0-serial.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/io.h>
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#include <linux/mtd/partitions.h>
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#include <linux/smc91x.h>
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#include <mach/hardware.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <mach/irqs.h>
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#include "generic.h"
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/*
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* Ethernet IRQ mappings
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*/
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#define PLEB_ETH0_P (0x20000300) /* Ethernet 0 in PCMCIA0 IO */
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#define PLEB_ETH0_V (0xf6000300)
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#define GPIO_ETH0_IRQ GPIO_GPIO(21)
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#define GPIO_ETH0_EN GPIO_GPIO(26)
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#define IRQ_GPIO_ETH0_IRQ IRQ_GPIO21
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static struct resource smc91x_resources[] = {
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[0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
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#if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
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[1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
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#endif
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};
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static struct smc91x_platdata smc91x_platdata = {
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.flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT,
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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.dev = {
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.platform_data = &smc91x_platdata,
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},
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};
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static struct platform_device *devices[] __initdata = {
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&smc91x_device,
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};
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/*
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* Pleb's memory map
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* has flash memory (typically 4 or 8 meg) selected by
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* the two SA1100 lowest chip select outputs.
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*/
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static struct resource pleb_flash_resources[] = {
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[0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
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[1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
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};
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static struct mtd_partition pleb_partitions[] = {
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{
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.name = "blob",
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.offset = 0,
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.size = 0x00020000,
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}, {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x000e0000,
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}, {
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x00300000,
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}
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};
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static struct flash_platform_data pleb_flash_data = {
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.map_name = "cfi_probe",
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.parts = pleb_partitions,
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.nr_parts = ARRAY_SIZE(pleb_partitions),
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};
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static void __init pleb_init(void)
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{
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sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
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ARRAY_SIZE(pleb_flash_resources));
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init pleb_map_io(void)
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{
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sa1100_map_io();
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sa1100_register_uart(0, 3);
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sa1100_register_uart(1, 1);
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GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
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GPDR |= GPIO_UART_TXD;
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GPDR &= ~GPIO_UART_RXD;
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PPAR |= PPAR_UPR;
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/*
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* Fix expansion memory timing for network card
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*/
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MECR = ((2<<10) | (2<<5) | (2<<0));
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/*
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* Enable the SMC ethernet controller
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*/
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GPDR |= GPIO_ETH0_EN; /* set to output */
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GPCR = GPIO_ETH0_EN; /* clear MCLK (enable smc) */
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GPDR &= ~GPIO_ETH0_IRQ;
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irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
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}
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MACHINE_START(PLEB, "PLEB")
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.map_io = pleb_map_io,
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.nr_irqs = SA1100_NR_IRQS,
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.init_irq = sa1100_init_irq,
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.init_time = sa1100_timer_init,
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.init_machine = pleb_init,
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.init_late = sa11x0_init_late,
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.restart = sa11x0_restart,
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MACHINE_END
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