Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/plat-omap/sram.c |
| 3 | * |
| 4 | * OMAP SRAM detection and management |
| 5 | * |
| 6 | * Copyright (C) 2005 Nokia Corporation |
| 7 | * Written by Tony Lindgren <tony@atomide.com> |
| 8 | * |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 9 | * Copyright (C) 2009 Texas Instruments |
| 10 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 11 | * |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2 as |
| 14 | * published by the Free Software Foundation. |
| 15 | */ |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 16 | #undef DEBUG |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 17 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 18 | #include <linux/module.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 21 | #include <linux/io.h> |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 22 | |
Tony Lindgren | 53d9cc7 | 2006-02-08 22:06:45 +0000 | [diff] [blame] | 23 | #include <asm/tlb.h> |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 24 | #include <asm/cacheflush.h> |
| 25 | |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 26 | #include <asm/mach/map.h> |
| 27 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 28 | #include <mach/sram.h> |
| 29 | #include <mach/board.h> |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 30 | #include <mach/cpu.h> |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 31 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 32 | #include <mach/control.h> |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 33 | |
| 34 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) |
| 35 | # include "../mach-omap2/prm.h" |
| 36 | # include "../mach-omap2/cm.h" |
| 37 | # include "../mach-omap2/sdrc.h" |
| 38 | #endif |
| 39 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 40 | #define OMAP1_SRAM_PA 0x20000000 |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 41 | #define OMAP1_SRAM_VA VMALLOC_END |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 42 | #define OMAP2_SRAM_PA 0x40200000 |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 43 | #define OMAP2_SRAM_PUB_PA 0x4020f800 |
Mans Rullgard | e85c205 | 2009-05-25 11:08:41 -0700 | [diff] [blame] | 44 | #define OMAP2_SRAM_VA 0xe3000000 |
| 45 | #define OMAP2_SRAM_PUB_VA (OMAP2_SRAM_VA + 0x800) |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 46 | #define OMAP3_SRAM_PA 0x40200000 |
| 47 | #define OMAP3_SRAM_VA 0xd7000000 |
| 48 | #define OMAP3_SRAM_PUB_PA 0x40208000 |
| 49 | #define OMAP3_SRAM_PUB_VA 0xd7008000 |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 50 | #define OMAP4_SRAM_PA 0x40200000 /*0x402f0000*/ |
| 51 | #define OMAP4_SRAM_VA 0xd7000000 /*0xd70f0000*/ |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 52 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 53 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 54 | #define SRAM_BOOTLOADER_SZ 0x00 |
| 55 | #else |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 56 | #define SRAM_BOOTLOADER_SZ 0x80 |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 57 | #endif |
| 58 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 59 | #define OMAP24XX_VA_REQINFOPERM0 IO_ADDRESS(0x68005048) |
| 60 | #define OMAP24XX_VA_READPERM0 IO_ADDRESS(0x68005050) |
| 61 | #define OMAP24XX_VA_WRITEPERM0 IO_ADDRESS(0x68005058) |
| 62 | |
| 63 | #define OMAP34XX_VA_REQINFOPERM0 IO_ADDRESS(0x68012848) |
| 64 | #define OMAP34XX_VA_READPERM0 IO_ADDRESS(0x68012850) |
| 65 | #define OMAP34XX_VA_WRITEPERM0 IO_ADDRESS(0x68012858) |
| 66 | #define OMAP34XX_VA_ADDR_MATCH2 IO_ADDRESS(0x68012880) |
| 67 | #define OMAP34XX_VA_SMS_RG_ATT0 IO_ADDRESS(0x6C000048) |
| 68 | #define OMAP34XX_VA_CONTROL_STAT IO_ADDRESS(0x480022F0) |
| 69 | |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 70 | #define GP_DEVICE 0x300 |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 71 | |
| 72 | #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1))) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 73 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 74 | static unsigned long omap_sram_start; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 75 | static unsigned long omap_sram_base; |
| 76 | static unsigned long omap_sram_size; |
| 77 | static unsigned long omap_sram_ceil; |
| 78 | |
Imre Deak | b7cc6d4 | 2007-03-06 03:16:36 -0800 | [diff] [blame] | 79 | extern unsigned long omapfb_reserve_sram(unsigned long sram_pstart, |
| 80 | unsigned long sram_vstart, |
| 81 | unsigned long sram_size, |
| 82 | unsigned long pstart_avail, |
| 83 | unsigned long size_avail); |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 84 | |
Imre Deak | b7cc6d4 | 2007-03-06 03:16:36 -0800 | [diff] [blame] | 85 | /* |
| 86 | * Depending on the target RAMFS firewall setup, the public usable amount of |
Simon Arlott | 6cbdc8c | 2007-05-11 20:40:30 +0100 | [diff] [blame] | 87 | * SRAM varies. The default accessible size for all device types is 2k. A GP |
| 88 | * device allows ARM11 but not other initiators for full size. This |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 89 | * functionality seems ok until some nice security API happens. |
| 90 | */ |
| 91 | static int is_sram_locked(void) |
| 92 | { |
| 93 | int type = 0; |
| 94 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 95 | if (cpu_is_omap44xx()) |
| 96 | /* Not yet supported */ |
| 97 | return 0; |
| 98 | |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 99 | if (cpu_is_omap242x()) |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 100 | type = omap_rev() & OMAP2_DEVICETYPE_MASK; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 101 | |
| 102 | if (type == GP_DEVICE) { |
Simon Arlott | 6cbdc8c | 2007-05-11 20:40:30 +0100 | [diff] [blame] | 103 | /* RAMFW: R/W access to all initiators for all qualifier sets */ |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 104 | if (cpu_is_omap242x()) { |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 105 | __raw_writel(0xFF, OMAP24XX_VA_REQINFOPERM0); /* all q-vects */ |
| 106 | __raw_writel(0xCFDE, OMAP24XX_VA_READPERM0); /* all i-read */ |
| 107 | __raw_writel(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */ |
| 108 | } |
| 109 | if (cpu_is_omap34xx()) { |
| 110 | __raw_writel(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */ |
| 111 | __raw_writel(0xFFFF, OMAP34XX_VA_READPERM0); /* all i-read */ |
| 112 | __raw_writel(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */ |
| 113 | __raw_writel(0x0, OMAP34XX_VA_ADDR_MATCH2); |
| 114 | __raw_writel(0xFFFFFFFF, OMAP34XX_VA_SMS_RG_ATT0); |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 115 | } |
| 116 | return 0; |
| 117 | } else |
| 118 | return 1; /* assume locked with no PPA or security driver */ |
| 119 | } |
| 120 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 121 | /* |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 122 | * The amount of SRAM depends on the core type. |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 123 | * Note that we cannot try to test for SRAM here because writes |
| 124 | * to secure SRAM will hang the system. Also the SRAM is not |
| 125 | * yet mapped at this point. |
| 126 | */ |
| 127 | void __init omap_detect_sram(void) |
| 128 | { |
Imre Deak | b7cc6d4 | 2007-03-06 03:16:36 -0800 | [diff] [blame] | 129 | unsigned long reserved; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 130 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 131 | if (cpu_class_is_omap2()) { |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 132 | if (is_sram_locked()) { |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 133 | if (cpu_is_omap34xx()) { |
| 134 | omap_sram_base = OMAP3_SRAM_PUB_VA; |
| 135 | omap_sram_start = OMAP3_SRAM_PUB_PA; |
| 136 | omap_sram_size = 0x8000; /* 32K */ |
| 137 | } else { |
| 138 | omap_sram_base = OMAP2_SRAM_PUB_VA; |
| 139 | omap_sram_start = OMAP2_SRAM_PUB_PA; |
| 140 | omap_sram_size = 0x800; /* 2K */ |
| 141 | } |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 142 | } else { |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 143 | if (cpu_is_omap34xx()) { |
| 144 | omap_sram_base = OMAP3_SRAM_VA; |
| 145 | omap_sram_start = OMAP3_SRAM_PA; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 146 | omap_sram_size = 0x10000; /* 64K */ |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 147 | } else if (cpu_is_omap44xx()) { |
| 148 | omap_sram_base = OMAP4_SRAM_VA; |
| 149 | omap_sram_start = OMAP4_SRAM_PA; |
| 150 | omap_sram_size = 0x8000; /* 32K */ |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 151 | } else { |
| 152 | omap_sram_base = OMAP2_SRAM_VA; |
| 153 | omap_sram_start = OMAP2_SRAM_PA; |
| 154 | if (cpu_is_omap242x()) |
| 155 | omap_sram_size = 0xa0000; /* 640K */ |
| 156 | else if (cpu_is_omap243x()) |
| 157 | omap_sram_size = 0x10000; /* 64K */ |
| 158 | } |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 159 | } |
| 160 | } else { |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 161 | omap_sram_base = OMAP1_SRAM_VA; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 162 | omap_sram_start = OMAP1_SRAM_PA; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 163 | |
Zebediah C. McClure | 557096f | 2009-03-23 18:07:44 -0700 | [diff] [blame] | 164 | if (cpu_is_omap7xx()) |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 165 | omap_sram_size = 0x32000; /* 200K */ |
| 166 | else if (cpu_is_omap15xx()) |
| 167 | omap_sram_size = 0x30000; /* 192K */ |
| 168 | else if (cpu_is_omap1610() || cpu_is_omap1621() || |
| 169 | cpu_is_omap1710()) |
| 170 | omap_sram_size = 0x4000; /* 16K */ |
| 171 | else if (cpu_is_omap1611()) |
| 172 | omap_sram_size = 0x3e800; /* 250K */ |
| 173 | else { |
| 174 | printk(KERN_ERR "Could not detect SRAM size\n"); |
| 175 | omap_sram_size = 0x4000; |
| 176 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 177 | } |
Imre Deak | b7cc6d4 | 2007-03-06 03:16:36 -0800 | [diff] [blame] | 178 | reserved = omapfb_reserve_sram(omap_sram_start, omap_sram_base, |
| 179 | omap_sram_size, |
| 180 | omap_sram_start + SRAM_BOOTLOADER_SZ, |
| 181 | omap_sram_size - SRAM_BOOTLOADER_SZ); |
| 182 | omap_sram_size -= reserved; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 183 | omap_sram_ceil = omap_sram_base + omap_sram_size; |
| 184 | } |
| 185 | |
| 186 | static struct map_desc omap_sram_io_desc[] __initdata = { |
Deepak Saxena | 9fe133b | 2005-10-28 15:19:00 +0100 | [diff] [blame] | 187 | { /* .length gets filled in at runtime */ |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 188 | .virtual = OMAP1_SRAM_VA, |
| 189 | .pfn = __phys_to_pfn(OMAP1_SRAM_PA), |
Tony Lindgren | ce2deca | 2006-06-26 16:16:24 -0700 | [diff] [blame] | 190 | .type = MT_MEMORY |
Deepak Saxena | 9fe133b | 2005-10-28 15:19:00 +0100 | [diff] [blame] | 191 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 192 | }; |
| 193 | |
| 194 | /* |
Tony Lindgren | ce2deca | 2006-06-26 16:16:24 -0700 | [diff] [blame] | 195 | * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early. |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 196 | */ |
| 197 | void __init omap_map_sram(void) |
| 198 | { |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 199 | unsigned long base; |
| 200 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 201 | if (omap_sram_size == 0) |
| 202 | return; |
| 203 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 204 | if (cpu_is_omap24xx()) { |
| 205 | omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 206 | |
Kevin Hilman | d1284b5 | 2006-09-25 12:41:24 +0300 | [diff] [blame] | 207 | base = OMAP2_SRAM_PA; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 208 | base = ROUND_DOWN(base, PAGE_SIZE); |
| 209 | omap_sram_io_desc[0].pfn = __phys_to_pfn(base); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 212 | if (cpu_is_omap34xx()) { |
| 213 | omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA; |
| 214 | base = OMAP3_SRAM_PA; |
| 215 | base = ROUND_DOWN(base, PAGE_SIZE); |
| 216 | omap_sram_io_desc[0].pfn = __phys_to_pfn(base); |
| 217 | } |
| 218 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 219 | if (cpu_is_omap44xx()) { |
| 220 | omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA; |
| 221 | base = OMAP4_SRAM_PA; |
| 222 | base = ROUND_DOWN(base, PAGE_SIZE); |
| 223 | omap_sram_io_desc[0].pfn = __phys_to_pfn(base); |
| 224 | } |
Tony Lindgren | ce2deca | 2006-06-26 16:16:24 -0700 | [diff] [blame] | 225 | omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */ |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 226 | iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc)); |
| 227 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 228 | printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n", |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 229 | __pfn_to_phys(omap_sram_io_desc[0].pfn), |
| 230 | omap_sram_io_desc[0].virtual, |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 231 | omap_sram_io_desc[0].length); |
| 232 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 233 | /* |
Tony Lindgren | 53d9cc7 | 2006-02-08 22:06:45 +0000 | [diff] [blame] | 234 | * Normally devicemaps_init() would flush caches and tlb after |
| 235 | * mdesc->map_io(), but since we're called from map_io(), we |
| 236 | * must do it here. |
| 237 | */ |
| 238 | local_flush_tlb_all(); |
| 239 | flush_cache_all(); |
| 240 | |
| 241 | /* |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 242 | * Looks like we need to preserve some bootloader code at the |
| 243 | * beginning of SRAM for jumping to flash for reboot to work... |
| 244 | */ |
| 245 | memset((void *)omap_sram_base + SRAM_BOOTLOADER_SZ, 0, |
| 246 | omap_sram_size - SRAM_BOOTLOADER_SZ); |
| 247 | } |
| 248 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 249 | void * omap_sram_push(void * start, unsigned long size) |
| 250 | { |
| 251 | if (size > (omap_sram_ceil - (omap_sram_base + SRAM_BOOTLOADER_SZ))) { |
| 252 | printk(KERN_ERR "Not enough space in SRAM\n"); |
| 253 | return NULL; |
| 254 | } |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 255 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 256 | omap_sram_ceil -= size; |
Tony Lindgren | 670c104 | 2006-04-02 17:46:25 +0100 | [diff] [blame] | 257 | omap_sram_ceil = ROUND_DOWN(omap_sram_ceil, sizeof(void *)); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 258 | memcpy((void *)omap_sram_ceil, start, size); |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 259 | flush_icache_range((unsigned long)start, (unsigned long)(start + size)); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 260 | |
| 261 | return (void *)omap_sram_ceil; |
| 262 | } |
| 263 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 264 | #ifdef CONFIG_ARCH_OMAP1 |
| 265 | |
| 266 | static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl); |
| 267 | |
| 268 | void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl) |
| 269 | { |
Santosh Shilimkar | af5703f | 2009-05-25 11:08:37 -0700 | [diff] [blame] | 270 | BUG_ON(!_omap_sram_reprogram_clock); |
Russell King | 020f970 | 2008-12-01 17:40:54 +0000 | [diff] [blame] | 271 | _omap_sram_reprogram_clock(dpllctl, ckctl); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | int __init omap1_sram_init(void) |
| 275 | { |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 276 | _omap_sram_reprogram_clock = |
| 277 | omap_sram_push(omap1_sram_reprogram_clock, |
| 278 | omap1_sram_reprogram_clock_sz); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 279 | |
| 280 | return 0; |
| 281 | } |
| 282 | |
| 283 | #else |
| 284 | #define omap1_sram_init() do {} while (0) |
| 285 | #endif |
| 286 | |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 287 | #if defined(CONFIG_ARCH_OMAP2) |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 288 | |
| 289 | static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, |
| 290 | u32 base_cs, u32 force_unlock); |
| 291 | |
| 292 | void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, |
| 293 | u32 base_cs, u32 force_unlock) |
| 294 | { |
Santosh Shilimkar | af5703f | 2009-05-25 11:08:37 -0700 | [diff] [blame] | 295 | BUG_ON(!_omap2_sram_ddr_init); |
Russell King | 020f970 | 2008-12-01 17:40:54 +0000 | [diff] [blame] | 296 | _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl, |
| 297 | base_cs, force_unlock); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val, |
| 301 | u32 mem_type); |
| 302 | |
| 303 | void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type) |
| 304 | { |
Santosh Shilimkar | af5703f | 2009-05-25 11:08:37 -0700 | [diff] [blame] | 305 | BUG_ON(!_omap2_sram_reprogram_sdrc); |
Russell King | 020f970 | 2008-12-01 17:40:54 +0000 | [diff] [blame] | 306 | _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); |
| 310 | |
| 311 | u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass) |
| 312 | { |
Santosh Shilimkar | af5703f | 2009-05-25 11:08:37 -0700 | [diff] [blame] | 313 | BUG_ON(!_omap2_set_prcm); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 314 | return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass); |
| 315 | } |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 316 | #endif |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 317 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 318 | #ifdef CONFIG_ARCH_OMAP2420 |
| 319 | int __init omap242x_sram_init(void) |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 320 | { |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 321 | _omap2_sram_ddr_init = omap_sram_push(omap242x_sram_ddr_init, |
| 322 | omap242x_sram_ddr_init_sz); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 323 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 324 | _omap2_sram_reprogram_sdrc = omap_sram_push(omap242x_sram_reprogram_sdrc, |
| 325 | omap242x_sram_reprogram_sdrc_sz); |
| 326 | |
| 327 | _omap2_set_prcm = omap_sram_push(omap242x_sram_set_prcm, |
| 328 | omap242x_sram_set_prcm_sz); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 329 | |
| 330 | return 0; |
| 331 | } |
| 332 | #else |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 333 | static inline int omap242x_sram_init(void) |
| 334 | { |
| 335 | return 0; |
| 336 | } |
| 337 | #endif |
| 338 | |
| 339 | #ifdef CONFIG_ARCH_OMAP2430 |
| 340 | int __init omap243x_sram_init(void) |
| 341 | { |
| 342 | _omap2_sram_ddr_init = omap_sram_push(omap243x_sram_ddr_init, |
| 343 | omap243x_sram_ddr_init_sz); |
| 344 | |
| 345 | _omap2_sram_reprogram_sdrc = omap_sram_push(omap243x_sram_reprogram_sdrc, |
| 346 | omap243x_sram_reprogram_sdrc_sz); |
| 347 | |
| 348 | _omap2_set_prcm = omap_sram_push(omap243x_sram_set_prcm, |
| 349 | omap243x_sram_set_prcm_sz); |
| 350 | |
| 351 | return 0; |
| 352 | } |
| 353 | #else |
| 354 | static inline int omap243x_sram_init(void) |
| 355 | { |
| 356 | return 0; |
| 357 | } |
| 358 | #endif |
| 359 | |
| 360 | #ifdef CONFIG_ARCH_OMAP3 |
| 361 | |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 362 | static u32 (*_omap3_sram_configure_core_dpll)(u32 sdrc_rfr_ctrl, |
| 363 | u32 sdrc_actim_ctrla, |
| 364 | u32 sdrc_actim_ctrlb, |
| 365 | u32 m2); |
| 366 | u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, |
| 367 | u32 sdrc_actim_ctrlb, u32 m2) |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 368 | { |
Santosh Shilimkar | af5703f | 2009-05-25 11:08:37 -0700 | [diff] [blame] | 369 | BUG_ON(!_omap3_sram_configure_core_dpll); |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 370 | return _omap3_sram_configure_core_dpll(sdrc_rfr_ctrl, |
| 371 | sdrc_actim_ctrla, |
| 372 | sdrc_actim_ctrlb, m2); |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | /* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */ |
| 376 | void restore_sram_functions(void) |
| 377 | { |
| 378 | omap_sram_ceil = omap_sram_base + omap_sram_size; |
| 379 | |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 380 | _omap3_sram_configure_core_dpll = |
| 381 | omap_sram_push(omap3_sram_configure_core_dpll, |
| 382 | omap3_sram_configure_core_dpll_sz); |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | int __init omap34xx_sram_init(void) |
| 386 | { |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 387 | _omap3_sram_configure_core_dpll = |
| 388 | omap_sram_push(omap3_sram_configure_core_dpll, |
| 389 | omap3_sram_configure_core_dpll_sz); |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | #else |
| 394 | static inline int omap34xx_sram_init(void) |
| 395 | { |
| 396 | return 0; |
| 397 | } |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 398 | #endif |
| 399 | |
| 400 | int __init omap_sram_init(void) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 401 | { |
| 402 | omap_detect_sram(); |
| 403 | omap_map_sram(); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 404 | |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 405 | if (!(cpu_class_is_omap2())) |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 406 | omap1_sram_init(); |
Tony Lindgren | c2d43e3 | 2008-07-03 12:24:38 +0300 | [diff] [blame] | 407 | else if (cpu_is_omap242x()) |
| 408 | omap242x_sram_init(); |
| 409 | else if (cpu_is_omap2430()) |
| 410 | omap243x_sram_init(); |
| 411 | else if (cpu_is_omap34xx()) |
| 412 | omap34xx_sram_init(); |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame^] | 413 | else if (cpu_is_omap44xx()) |
| 414 | omap34xx_sram_init(); /* FIXME: */ |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 415 | |
| 416 | return 0; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 417 | } |