Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /***************************************************************************/ |
| 2 | |
| 3 | /* |
| 4 | * linux/arch/m68knommu/platform/528x/config.c |
| 5 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 6 | * Sub-architcture dependent initialization code for the Freescale |
Greg Ungerer | 980f923 | 2009-04-28 14:24:25 +1000 | [diff] [blame] | 7 | * 5280, 5281 and 5282 CPUs. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com) |
| 10 | * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) |
| 11 | */ |
| 12 | |
| 13 | /***************************************************************************/ |
| 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/param.h> |
| 17 | #include <linux/init.h> |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 18 | #include <linux/platform_device.h> |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 19 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <asm/machdep.h> |
| 21 | #include <asm/coldfire.h> |
| 22 | #include <asm/mcfsim.h> |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 23 | #include <asm/mcfuart.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
| 25 | /***************************************************************************/ |
| 26 | |
Steven King | 83ca600 | 2012-05-06 12:22:53 -0700 | [diff] [blame] | 27 | #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) |
Steven King | 91d6041 | 2010-01-22 12:43:03 -0800 | [diff] [blame] | 28 | |
| 29 | static void __init m528x_qspi_init(void) |
| 30 | { |
| 31 | /* setup Port QS for QSPI with gpio CS control */ |
| 32 | __raw_writeb(0x07, MCFGPIO_PQSPAR); |
| 33 | } |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 34 | |
Steven King | 83ca600 | 2012-05-06 12:22:53 -0700 | [diff] [blame] | 35 | #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 36 | |
| 37 | /***************************************************************************/ |
| 38 | |
Greg Ungerer | cae82a8 | 2011-12-24 01:00:48 +1000 | [diff] [blame] | 39 | static void __init m528x_uarts_init(void) |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 40 | { |
| 41 | u8 port; |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 42 | |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 43 | /* make sure PUAPAR is set for UART0 and UART1 */ |
Greg Ungerer | cae82a8 | 2011-12-24 01:00:48 +1000 | [diff] [blame] | 44 | port = readb(MCF5282_GPIO_PUAPAR); |
| 45 | port |= 0x03 | (0x03 << 2); |
Steven King | eac5794 | 2012-05-21 13:10:19 -0700 | [diff] [blame] | 46 | writeb(port, MCFGPIO_PUAPAR); |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 47 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
| 49 | /***************************************************************************/ |
| 50 | |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 51 | static void __init m528x_fec_init(void) |
| 52 | { |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 53 | u16 v16; |
| 54 | |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 55 | /* Set multi-function pins to ethernet mode for fec0 */ |
Greg Ungerer | a91f741 | 2012-09-17 12:20:20 +1000 | [diff] [blame^] | 56 | v16 = readw(MCFGPIO_PASPAR); |
| 57 | writew(v16 | 0xf00, MCFGPIO_PASPAR); |
| 58 | writeb(0xc0, MCFGPIO_PEHLPAR); |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | /***************************************************************************/ |
| 62 | |
Steve Bennett | 188a9a4 | 2008-05-01 12:17:08 +1000 | [diff] [blame] | 63 | #ifdef CONFIG_WILDFIRE |
| 64 | void wildfire_halt(void) |
| 65 | { |
| 66 | writeb(0, 0x30000007); |
| 67 | writeb(0x2, 0x30000007); |
| 68 | } |
| 69 | #endif |
| 70 | |
| 71 | #ifdef CONFIG_WILDFIREMOD |
| 72 | void wildfiremod_halt(void) |
| 73 | { |
| 74 | printk(KERN_INFO "WildFireMod hibernating...\n"); |
| 75 | |
| 76 | /* Set portE.5 to Digital IO */ |
| 77 | MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2)); |
| 78 | |
| 79 | /* Make portE.5 an output */ |
| 80 | MCF5282_GPIO_DDRE |= (1 << 5); |
| 81 | |
| 82 | /* Now toggle portE.5 from low to high */ |
| 83 | MCF5282_GPIO_PORTE &= ~(1 << 5); |
| 84 | MCF5282_GPIO_PORTE |= (1 << 5); |
| 85 | |
| 86 | printk(KERN_EMERG "Failed to hibernate. Halting!\n"); |
| 87 | } |
| 88 | #endif |
| 89 | |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 90 | void __init config_BSP(char *commandp, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | { |
Steve Bennett | 188a9a4 | 2008-05-01 12:17:08 +1000 | [diff] [blame] | 92 | #ifdef CONFIG_WILDFIRE |
| 93 | mach_halt = wildfire_halt; |
| 94 | #endif |
| 95 | #ifdef CONFIG_WILDFIREMOD |
| 96 | mach_halt = wildfiremod_halt; |
| 97 | #endif |
Greg Ungerer | 35aefb2 | 2012-01-23 15:34:58 +1000 | [diff] [blame] | 98 | mach_sched_init = hw_timer_init; |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 99 | m528x_uarts_init(); |
Greg Ungerer | ffba3f4 | 2009-02-26 22:40:38 -0800 | [diff] [blame] | 100 | m528x_fec_init(); |
Steven King | 83ca600 | 2012-05-06 12:22:53 -0700 | [diff] [blame] | 101 | #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) |
Steven King | 91d6041 | 2010-01-22 12:43:03 -0800 | [diff] [blame] | 102 | m528x_qspi_init(); |
| 103 | #endif |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 104 | } |
| 105 | |
Greg Ungerer | eb49e90 | 2008-02-01 17:34:50 +1000 | [diff] [blame] | 106 | /***************************************************************************/ |