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android_kernel_xiaomi_sm8350/arch/arm/mach-sa1100/collie.c
Pavel Machek b94ea6c08d [ARM] 3727/1: fix ucb initialization on collie 
Patch from Pavel Machek

From: Dirk Opfer <Dirk@Opfer-Online.de>

Fix ucb initialization on collie. Wrong frequency was used and that
led to things not working quite correctly. (I had to actually disable
checks in my tree to get it to boot). It now includes all the
neccessary parts to get it to compile :-).

Signed-off-by: Pavel Machek <pavel@suse.cz>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-11 22:54:15 +01:00

300 lines
7.1 KiB
C
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/*
* linux/arch/arm/mach-sa1100/collie.c
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* This file contains all Collie-specific tweaks.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* ChangeLog:
* 2006 Pavel Machek <pavel@suse.cz>
* 03-06-2004 John Lenz <lenz@cs.wisc.edu>
* 06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
* 04-16-2001 Lineo Japan,Inc. ...
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/timer.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/arch/collie.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/hardware/scoop.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/locomo.h>
#include <asm/arch/mcp.h>
#include "generic.h"
static struct resource collie_scoop_resources[] = {
[0] = {
.start = 0x40800000,
.end = 0x40800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config collie_scoop_setup = {
.io_dir = COLLIE_SCOOP_IO_DIR,
.io_out = COLLIE_SCOOP_IO_OUT,
};
struct platform_device colliescoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &collie_scoop_setup,
},
.num_resources = ARRAY_SIZE(collie_scoop_resources),
.resource = collie_scoop_resources,
};
static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
{
.dev = &colliescoop_device.dev,
.irq = COLLIE_IRQ_GPIO_CF_IRQ,
.cd_irq = COLLIE_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config collie_pcmcia_config = {
.devs = &collie_pcmcia_scoop[0],
.num_devs = 1,
};
static struct mcp_plat_data collie_mcp_data = {
.mccr0 = MCCR0_ADM | MCCR0_ExtClk,
.sclk_rate = 9216000,
};
#ifdef CONFIG_SHARP_LOCOMO
/*
* low-level UART features.
*/
static struct locomo_dev *uart_dev = NULL;
static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
{
if (!uart_dev) return;
if (mctrl & TIOCM_RTS)
locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 0);
else
locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 1);
if (mctrl & TIOCM_DTR)
locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 0);
else
locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 1);
}
static u_int collie_uart_get_mctrl(struct uart_port *port)
{
int ret = TIOCM_CD;
unsigned int r;
if (!uart_dev) return ret;
r = locomo_gpio_read_output(uart_dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
if (r & LOCOMO_GPIO_CTS)
ret |= TIOCM_CTS;
if (r & LOCOMO_GPIO_DSR)
ret |= TIOCM_DSR;
return ret;
}
static struct sa1100_port_fns collie_port_fns __initdata = {
.set_mctrl = collie_uart_set_mctrl,
.get_mctrl = collie_uart_get_mctrl,
};
static int collie_uart_probe(struct locomo_dev *dev)
{
uart_dev = dev;
return 0;
}
static int collie_uart_remove(struct locomo_dev *dev)
{
uart_dev = NULL;
return 0;
}
static struct locomo_driver collie_uart_driver = {
.drv = {
.name = "collie_uart",
},
.devid = LOCOMO_DEVID_UART,
.probe = collie_uart_probe,
.remove = collie_uart_remove,
};
static int __init collie_uart_init(void) {
return locomo_driver_register(&collie_uart_driver);
}
device_initcall(collie_uart_init);
#endif
static struct resource locomo_resources[] = {
[0] = {
.start = 0x40000000,
.end = 0x40001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_GPIO25,
.end = IRQ_GPIO25,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
.resource = locomo_resources,
};
static struct platform_device *devices[] __initdata = {
&locomo_device,
&colliescoop_device,
};
static struct mtd_partition collie_partitions[] = {
{
.name = "bootloader",
.offset = 0,
.size = 0x000C0000,
.mask_flags = MTD_WRITEABLE
}, {
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = 0x00100000,
}, {
.name = "rootfs",
.offset = MTDPART_OFS_APPEND,
.size = 0x00e20000,
}
};
static void collie_set_vpp(int vpp)
{
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
if (vpp)
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
else
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
}
static struct flash_platform_data collie_flash_data = {
.map_name = "cfi_probe",
.set_vpp = collie_set_vpp,
.parts = collie_partitions,
.nr_parts = ARRAY_SIZE(collie_partitions),
};
static struct resource collie_flash_resources[] = {
{
.start = SA1100_CS0_PHYS,
.end = SA1100_CS0_PHYS + SZ_32M - 1,
.flags = IORESOURCE_MEM,
}
};
static void __init collie_init(void)
{
int ret = 0;
/* cpu initialize */
GAFR = ( GPIO_SSP_TXD | \
GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
GPIO_32_768kHz );
GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
GPLR = GPIO_GPIO18;
// PPC pin setting
PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
GAFR |= GPIO_32_768kHz;
GPDR |= GPIO_32_768kHz;
TUCR = TUCR_32_768kHz;
platform_scoop_config = &collie_pcmcia_config;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret) {
printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
}
sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
ARRAY_SIZE(collie_flash_resources));
sa11x0_set_mcp_data(&collie_mcp_data);
sharpsl_save_param();
}
static struct map_desc collie_io_desc[] __initdata = {
{ /* 32M main flash (cs0) */
.virtual = 0xe8000000,
.pfn = __phys_to_pfn(0x00000000),
.length = 0x02000000,
.type = MT_DEVICE
}, { /* 32M boot flash (cs1) */
.virtual = 0xea000000,
.pfn = __phys_to_pfn(0x08000000),
.length = 0x02000000,
.type = MT_DEVICE
}
};
static void __init collie_map_io(void)
{
sa1100_map_io();
iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
#ifdef CONFIG_SHARP_LOCOMO
sa1100_register_uart_fns(&collie_port_fns);
#endif
sa1100_register_uart(0, 3);
sa1100_register_uart(1, 1);
}
MACHINE_START(COLLIE, "Sharp-Collie")
.phys_io = 0x80000000,
.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
.map_io = collie_map_io,
.init_irq = sa1100_init_irq,
.timer = &sa1100_timer,
.init_machine = collie_init,
MACHINE_END
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