diff options
Diffstat (limited to 'arch/arm/mach-sa1100/shannon.c')
| -rw-r--r-- | arch/arm/mach-sa1100/shannon.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/shannon.c b/arch/arm/mach-sa1100/shannon.c new file mode 100644 index 000000000..351f891b4 --- /dev/null +++ b/arch/arm/mach-sa1100/shannon.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/arch/arm/mach-sa1100/shannon.c + */ + +#include <linux/init.h> +#include <linux/device.h> +#include <linux/gpio/machine.h> +#include <linux/kernel.h> +#include <linux/platform_data/sa11x0-serial.h> +#include <linux/tty.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/regulator/fixed.h> +#include <linux/regulator/machine.h> + +#include <video/sa1100fb.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/setup.h> + +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> +#include <linux/platform_data/mfd-mcp-sa11x0.h> +#include <mach/shannon.h> +#include <mach/irqs.h> + +#include "generic.h" + +static struct mtd_partition shannon_partitions[] = { + { + .name = "BLOB boot loader", + .offset = 0, + .size = 0x20000 + }, + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = 0xe0000 + }, + { + .name = "initrd", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL + } +}; + +static struct flash_platform_data shannon_flash_data = { + .map_name = "cfi_probe", + .parts = shannon_partitions, + .nr_parts = ARRAY_SIZE(shannon_partitions), +}; + +static struct resource shannon_flash_resource = + DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M); + +static struct mcp_plat_data shannon_mcp_data = { + .mccr0 = MCCR0_ADM, + .sclk_rate = 11981000, +}; + +static struct sa1100fb_mach_info shannon_lcd_info = { + .pixclock = 152500, .bpp = 8, + .xres = 640, .yres = 480, + + .hsync_len = 4, .vsync_len = 3, + .left_margin = 2, .upper_margin = 0, + .right_margin = 1, .lower_margin = 0, + + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + + .lccr0 = LCCR0_Color | LCCR0_Dual | LCCR0_Pas, + .lccr3 = LCCR3_ACBsDiv(512), +}; + +static struct gpiod_lookup_table shannon_pcmcia0_gpio_table = { + .dev_id = "sa11x0-pcmcia.0", + .table = { + GPIO_LOOKUP("gpio", 24, "detect", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio", 26, "ready", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static struct gpiod_lookup_table shannon_pcmcia1_gpio_table = { + .dev_id = "sa11x0-pcmcia.1", + .table = { + GPIO_LOOKUP("gpio", 25, "detect", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("gpio", 27, "ready", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = { + REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"), + REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"), +}; + +static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = { + .supply_name = "cf-power", + .microvolts = 3300000, + .enabled_at_boot = 1, +}; + +static struct gpiod_lookup_table shannon_display_gpio_table = { + .dev_id = "sa11x0-fb", + .table = { + GPIO_LOOKUP("gpio", 22, "shannon-lcden", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static void __init shannon_init(void) +{ + sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata, + shannon_cf_vcc_consumers, + ARRAY_SIZE(shannon_cf_vcc_consumers), + false); + sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table); + sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table); + sa11x0_ppc_configure_mcp(); + gpiod_add_lookup_table(&shannon_display_gpio_table); + sa11x0_register_lcd(&shannon_lcd_info); + sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1); + sa11x0_register_mcp(&shannon_mcp_data); +} + +static void __init shannon_map_io(void) +{ + sa1100_map_io(); + + sa1100_register_uart(0, 3); + sa1100_register_uart(1, 1); + + Ser1SDCR0 |= SDCR0_SUS; + GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD); + GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET; + GPDR &= ~GPIO_UART_RXD; + PPAR |= PPAR_UPR; + + /* reset the codec */ + GPCR = SHANNON_GPIO_CODEC_RESET; + GPSR = SHANNON_GPIO_CODEC_RESET; +} + +MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)") + .atag_offset = 0x100, + .map_io = shannon_map_io, + .nr_irqs = SA1100_NR_IRQS, + .init_irq = sa1100_init_irq, + .init_time = sa1100_timer_init, + .init_machine = shannon_init, + .init_late = sa11x0_init_late, + .restart = sa11x0_restart, +MACHINE_END |