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/*
* arch / arm / mach - orion5x / ts78xx - setup . c
*
* Maintainer : Alexander Clouter < alex @ digriz . org . uk >
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed " as is " without any
* warranty of any kind , whether express or implied .
*/
# include <linux/kernel.h>
# include <linux/init.h>
# include <linux/platform_device.h>
# include <linux/mtd/physmap.h>
# include <linux/mv643xx_eth.h>
# include <linux/ata_platform.h>
# include <linux/m48t86.h>
# include <asm/mach-types.h>
# include <asm/mach/arch.h>
# include <asm/mach/map.h>
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# include <mach/orion5x.h>
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# include "common.h"
# include "mpp.h"
/*****************************************************************************
* TS - 78 xx Info
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* FPGA - lives where the PCI bus would be at ORION5X_PCI_MEM_PHYS_BASE
*/
# define TS78XX_FPGA_REGS_PHYS_BASE 0xe8000000
# define TS78XX_FPGA_REGS_VIRT_BASE 0xff900000
# define TS78XX_FPGA_REGS_SIZE SZ_1M
# define TS78XX_FPGA_REGS_SYSCON_ID (TS78XX_FPGA_REGS_VIRT_BASE | 0x000)
# define TS78XX_FPGA_REGS_SYSCON_LCDI (TS78XX_FPGA_REGS_VIRT_BASE | 0x004)
# define TS78XX_FPGA_REGS_SYSCON_LCDO (TS78XX_FPGA_REGS_VIRT_BASE | 0x008)
# define TS78XX_FPGA_REGS_RTC_CTRL (TS78XX_FPGA_REGS_VIRT_BASE | 0x808)
# define TS78XX_FPGA_REGS_RTC_DATA (TS78XX_FPGA_REGS_VIRT_BASE | 0x80c)
/*
* 512 kB NOR flash Device
*/
# define TS78XX_NOR_BOOT_BASE 0xff800000
# define TS78XX_NOR_BOOT_SIZE SZ_512K
/*****************************************************************************
* I / O Address Mapping
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct map_desc ts78xx_io_desc [ ] __initdata = {
{
. virtual = TS78XX_FPGA_REGS_VIRT_BASE ,
. pfn = __phys_to_pfn ( TS78XX_FPGA_REGS_PHYS_BASE ) ,
. length = TS78XX_FPGA_REGS_SIZE ,
. type = MT_DEVICE ,
} ,
} ;
void __init ts78xx_map_io ( void )
{
orion5x_map_io ( ) ;
iotable_init ( ts78xx_io_desc , ARRAY_SIZE ( ts78xx_io_desc ) ) ;
}
/*****************************************************************************
* 512 kB NOR Boot Flash - the chip is a M25P40
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct mtd_partition ts78xx_nor_boot_flash_resources [ ] = {
{
. name = " ts-bootrom " ,
. offset = 0 ,
/* only the first 256kB is used */
. size = SZ_256K ,
. mask_flags = MTD_WRITEABLE ,
} ,
} ;
static struct physmap_flash_data ts78xx_nor_boot_flash_data = {
. width = 1 ,
. parts = ts78xx_nor_boot_flash_resources ,
. nr_parts = ARRAY_SIZE ( ts78xx_nor_boot_flash_resources ) ,
} ;
static struct resource ts78xx_nor_boot_flash_resource = {
. flags = IORESOURCE_MEM ,
. start = TS78XX_NOR_BOOT_BASE ,
. end = TS78XX_NOR_BOOT_BASE + TS78XX_NOR_BOOT_SIZE - 1 ,
} ;
static struct platform_device ts78xx_nor_boot_flash = {
. name = " physmap-flash " ,
. id = - 1 ,
. dev = {
. platform_data = & ts78xx_nor_boot_flash_data ,
} ,
. num_resources = 1 ,
. resource = & ts78xx_nor_boot_flash_resource ,
} ;
/*****************************************************************************
* Ethernet
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct mv643xx_eth_platform_data ts78xx_eth_data = {
. phy_addr = 0 ,
. force_phy_addr = 1 ,
} ;
/*****************************************************************************
* RTC M48T86 - nicked ^ Wborrowed from arch / arm / mach - ep93xx / ts72xx . c
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# ifdef CONFIG_RTC_DRV_M48T86
static unsigned char ts78xx_rtc_readbyte ( unsigned long addr )
{
writeb ( addr , TS78XX_FPGA_REGS_RTC_CTRL ) ;
return readb ( TS78XX_FPGA_REGS_RTC_DATA ) ;
}
static void ts78xx_rtc_writebyte ( unsigned char value , unsigned long addr )
{
writeb ( addr , TS78XX_FPGA_REGS_RTC_CTRL ) ;
writeb ( value , TS78XX_FPGA_REGS_RTC_DATA ) ;
}
static struct m48t86_ops ts78xx_rtc_ops = {
. readbyte = ts78xx_rtc_readbyte ,
. writebyte = ts78xx_rtc_writebyte ,
} ;
static struct platform_device ts78xx_rtc_device = {
. name = " rtc-m48t86 " ,
. id = - 1 ,
. dev = {
. platform_data = & ts78xx_rtc_ops ,
} ,
. num_resources = 0 ,
} ;
/*
* TS uses some of the user storage space on the RTC chip so see if it is
* present ; as it ' s an optional feature at purchase time and not all boards
* will have it present
*
* I ' ve used the method TS use in their rtc7800 . c example for the detection
*
* TODO : track down a guinea pig without an RTC to see if we can work out a
* better RTC detection routine
*/
static int __init ts78xx_rtc_init ( void )
{
unsigned char tmp_rtc0 , tmp_rtc1 ;
tmp_rtc0 = ts78xx_rtc_readbyte ( 126 ) ;
tmp_rtc1 = ts78xx_rtc_readbyte ( 127 ) ;
ts78xx_rtc_writebyte ( 0x00 , 126 ) ;
ts78xx_rtc_writebyte ( 0x55 , 127 ) ;
if ( ts78xx_rtc_readbyte ( 127 ) = = 0x55 ) {
ts78xx_rtc_writebyte ( 0xaa , 127 ) ;
if ( ts78xx_rtc_readbyte ( 127 ) = = 0xaa
& & ts78xx_rtc_readbyte ( 126 ) = = 0x00 ) {
ts78xx_rtc_writebyte ( tmp_rtc0 , 126 ) ;
ts78xx_rtc_writebyte ( tmp_rtc1 , 127 ) ;
platform_device_register ( & ts78xx_rtc_device ) ;
return 1 ;
}
}
return 0 ;
} ;
# else
static int __init ts78xx_rtc_init ( void )
{
return 0 ;
}
# endif
/*****************************************************************************
* SATA
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct mv_sata_platform_data ts78xx_sata_data = {
. n_ports = 2 ,
} ;
/*****************************************************************************
* print some information regarding the board
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void __init ts78xx_print_board_id ( void )
{
unsigned int board_info ;
board_info = readl ( TS78XX_FPGA_REGS_SYSCON_ID ) ;
printk ( KERN_INFO " TS-78xx Info: FPGA rev=%.2x, Board Magic=%.6x, " ,
board_info & 0xff ,
( board_info > > 8 ) & 0xffffff ) ;
board_info = readl ( TS78XX_FPGA_REGS_SYSCON_LCDI ) ;
printk ( " JP1=%d, JP2=%d \n " ,
( board_info > > 30 ) & 0x1 ,
( board_info > > 31 ) & 0x1 ) ;
} ;
/*****************************************************************************
* General Setup
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct orion5x_mpp_mode ts78xx_mpp_modes [ ] __initdata = {
{ 0 , MPP_UNUSED } ,
{ 1 , MPP_GPIO } , /* JTAG Clock */
{ 2 , MPP_GPIO } , /* JTAG Data In */
{ 3 , MPP_GPIO } , /* Lat ECP2 256 FPGA - PB2B */
{ 4 , MPP_GPIO } , /* JTAG Data Out */
{ 5 , MPP_GPIO } , /* JTAG TMS */
{ 6 , MPP_GPIO } , /* Lat ECP2 256 FPGA - PB31A_CLK4+ */
{ 7 , MPP_GPIO } , /* Lat ECP2 256 FPGA - PB22B */
{ 8 , MPP_UNUSED } ,
{ 9 , MPP_UNUSED } ,
{ 10 , MPP_UNUSED } ,
{ 11 , MPP_UNUSED } ,
{ 12 , MPP_UNUSED } ,
{ 13 , MPP_UNUSED } ,
{ 14 , MPP_UNUSED } ,
{ 15 , MPP_UNUSED } ,
{ 16 , MPP_UART } ,
{ 17 , MPP_UART } ,
{ 18 , MPP_UART } ,
{ 19 , MPP_UART } ,
{ - 1 } ,
} ;
static void __init ts78xx_init ( void )
{
/*
* Setup basic Orion functions . Need to be called early .
*/
orion5x_init ( ) ;
ts78xx_print_board_id ( ) ;
orion5x_mpp_conf ( ts78xx_mpp_modes ) ;
/*
* MPP [ 20 ] PCI Clock Out 1
* MPP [ 21 ] PCI Clock Out 0
* MPP [ 22 ] Unused
* MPP [ 23 ] Unused
* MPP [ 24 ] Unused
* MPP [ 25 ] Unused
*/
/*
* Configure peripherals .
*/
orion5x_ehci0_init ( ) ;
orion5x_ehci1_init ( ) ;
orion5x_eth_init ( & ts78xx_eth_data ) ;
orion5x_sata_init ( & ts78xx_sata_data ) ;
orion5x_uart0_init ( ) ;
orion5x_uart1_init ( ) ;
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orion5x_xor_init ( ) ;
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orion5x_setup_dev_boot_win ( TS78XX_NOR_BOOT_BASE ,
TS78XX_NOR_BOOT_SIZE ) ;
platform_device_register ( & ts78xx_nor_boot_flash ) ;
if ( ! ts78xx_rtc_init ( ) )
printk ( KERN_INFO " TS-78xx RTC not detected or enabled \n " ) ;
}
MACHINE_START ( TS78XX , " Technologic Systems TS-78xx SBC " )
/* Maintainer: Alexander Clouter <alex@digriz.org.uk> */
. phys_io = ORION5X_REGS_PHYS_BASE ,
. io_pg_offst = ( ( ORION5X_REGS_VIRT_BASE ) > > 18 ) & 0xFFFC ,
. boot_params = 0x00000100 ,
. init_machine = ts78xx_init ,
. map_io = ts78xx_map_io ,
. init_irq = orion5x_init_irq ,
. timer = & orion5x_timer ,
MACHINE_END
