Hans J. Koch | 2aea73c | 2010-09-17 18:21:36 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
Oskar Schirmer | 85922e5 | 2011-02-17 16:42:58 +0100 | [diff] [blame] | 9 | #include <linux/delay.h> |
Hans J. Koch | 2aea73c | 2010-09-17 18:21:36 +0200 | [diff] [blame] | 10 | #include <linux/init.h> |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/platform_device.h> |
| 13 | |
| 14 | #include <asm/mach-types.h> |
| 15 | |
| 16 | #include <asm/mach/arch.h> |
| 17 | #include <asm/mach/map.h> |
| 18 | #include <asm/mach/time.h> |
| 19 | |
| 20 | #include <mach/clock.h> |
Oskar Schirmer | 30d9135 | 2011-02-17 16:42:51 +0100 | [diff] [blame] | 21 | #include <mach/tcc-nand.h> |
Oskar Schirmer | 85922e5 | 2011-02-17 16:42:58 +0100 | [diff] [blame] | 22 | #include <mach/tcc8k-regs.h> |
Hans J. Koch | 2aea73c | 2010-09-17 18:21:36 +0200 | [diff] [blame] | 23 | |
| 24 | #include "common.h" |
| 25 | |
| 26 | #define XI_FREQUENCY 12000000 |
| 27 | #define XTI_FREQUENCY 32768 |
| 28 | |
| 29 | #ifdef CONFIG_MTD_NAND_TCC |
| 30 | /* NAND */ |
| 31 | static struct tcc_nand_platform_data tcc8k_sdk_nand_data = { |
| 32 | .width = 1, |
| 33 | .hw_ecc = 0, |
| 34 | }; |
| 35 | #endif |
| 36 | |
| 37 | static void __init tcc8k_init(void) |
| 38 | { |
| 39 | #ifdef CONFIG_MTD_NAND_TCC |
| 40 | tcc_nand_device.dev.platform_data = &tcc8k_sdk_nand_data; |
| 41 | platform_device_register(&tcc_nand_device); |
| 42 | #endif |
| 43 | } |
| 44 | |
| 45 | static void __init tcc8k_init_timer(void) |
| 46 | { |
| 47 | tcc_clocks_init(XI_FREQUENCY, XTI_FREQUENCY); |
| 48 | } |
| 49 | |
| 50 | static struct sys_timer tcc8k_timer = { |
| 51 | .init = tcc8k_init_timer, |
| 52 | }; |
| 53 | |
| 54 | static void __init tcc8k_map_io(void) |
| 55 | { |
| 56 | tcc8k_map_common_io(); |
Oskar Schirmer | 85922e5 | 2011-02-17 16:42:58 +0100 | [diff] [blame] | 57 | |
| 58 | /* set PLL0 clock to 96MHz, adapt UART0 divisor */ |
| 59 | __raw_writel(0x00026003, CKC_BASE + PLL0CFG_OFFS); |
| 60 | __raw_writel(0x10000001, CKC_BASE + ACLKUART0_OFFS); |
| 61 | |
| 62 | /* set PLL1 clock to 192MHz */ |
| 63 | __raw_writel(0x00016003, CKC_BASE + PLL1CFG_OFFS); |
| 64 | |
| 65 | /* set PLL2 clock to 48MHz */ |
| 66 | __raw_writel(0x00036003, CKC_BASE + PLL2CFG_OFFS); |
| 67 | |
| 68 | /* with CPU freq higher than 150 MHz, need extra DTCM wait */ |
| 69 | __raw_writel(0x00000001, SCFG_BASE + DTCMWAIT_OFFS); |
| 70 | |
| 71 | /* PLL locking time as specified */ |
| 72 | udelay(300); |
Hans J. Koch | 2aea73c | 2010-09-17 18:21:36 +0200 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | MACHINE_START(TCC8000_SDK, "Telechips TCC8000-SDK Demo Board") |
Russell King | b75c178 | 2011-01-04 19:03:16 +0000 | [diff] [blame] | 76 | .boot_params = PLAT_PHYS_OFFSET + 0x00000100, |
Hans J. Koch | 2aea73c | 2010-09-17 18:21:36 +0200 | [diff] [blame] | 77 | .map_io = tcc8k_map_io, |
| 78 | .init_irq = tcc8k_init_irq, |
| 79 | .init_machine = tcc8k_init, |
| 80 | .timer = &tcc8k_timer, |
| 81 | MACHINE_END |