| 1 | /************************************************************************ |
| 2 | * |
| 3 | * Copyright (c) 2007 |
| 4 | * Infineon Technologies AG |
| 5 | * St. Martin Strasse 53; 81669 Muenchen; Germany |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version |
| 10 | * 2 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | ************************************************************************/ |
| 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/proc_fs.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <asm/addrspace.h> |
| 20 | |
| 21 | #include <base_reg.h> |
| 22 | #include <sys1_reg.h> |
| 23 | #include <sys2_reg.h> |
| 24 | #include <lantiq_soc.h> |
| 25 | |
| 26 | static struct svip_reg_sys1 *const sys1 = (struct svip_reg_sys1 *)LTQ_SYS1_BASE; |
| 27 | static struct svip_reg_sys2 *const sys2 = (struct svip_reg_sys2 *)LTQ_SYS2_BASE; |
| 28 | |
| 29 | void svip_sys1_clk_enable(u32 mask) |
| 30 | { |
| 31 | sys1_w32(sys1_r32(clksr) | mask, clkenr); |
| 32 | asm("sync;"); |
| 33 | } |
| 34 | EXPORT_SYMBOL(svip_sys1_clk_enable); |
| 35 | |
| 36 | int svip_sys1_clk_is_enabled(u32 mask) |
| 37 | { |
| 38 | return (sys1_r32(clksr) & mask) != 0; |
| 39 | } |
| 40 | EXPORT_SYMBOL(svip_sys1_clk_is_enabled); |
| 41 | |
| 42 | void svip_sys2_clk_enable(u32 mask) |
| 43 | { |
| 44 | sys2_w32(sys2_r32(clksr) | mask, clkenr); |
| 45 | asm("sync;"); |
| 46 | } |
| 47 | EXPORT_SYMBOL(svip_sys2_clk_enable); |
| 48 | |
| 49 | int svip_sys2_clk_is_enabled(u32 mask) |
| 50 | { |
| 51 | return (sys2_r32(clksr) & mask) != 0; |
| 52 | } |
| 53 | EXPORT_SYMBOL(svip_sys2_clk_is_enabled); |
| 54 | |
| 55 | int ltq_pms_read_procmem(char *buf, char **start, off_t offset, |
| 56 | int count, int *eof, void *data) |
| 57 | { |
| 58 | long len = 0; |
| 59 | int t = 0; |
| 60 | u32 bit = 0; |
| 61 | u32 reg_tmp, bits_tmp; |
| 62 | |
| 63 | len = sprintf(buf, "\nSVIP PMS Settings\n"); |
| 64 | len = len + sprintf(buf + len, |
| 65 | " 3 2 1 0\n"); |
| 66 | len = len + sprintf(buf + len, |
| 67 | " 210987654321098765432109876543210\n"); |
| 68 | len = len + sprintf(buf + len, |
| 69 | "---------------------------------------------\n"); |
| 70 | len = len + sprintf(buf + len, |
| 71 | "SYS1_CLKSR: "); |
| 72 | reg_tmp = sys1_r32(clksr); |
| 73 | bit = 0x80000000; |
| 74 | for (t = 31; t != -1; t--) { |
| 75 | bits_tmp = (reg_tmp & bit) >> t; |
| 76 | len = len + sprintf(buf + len, "%d", bits_tmp); |
| 77 | bit = bit >> 1; |
| 78 | } |
| 79 | len = len + sprintf(buf + len, "\n\n"); |
| 80 | len = len + sprintf(buf + len, "SYS2_CLKSR: "); |
| 81 | reg_tmp = sys2_r32(clksr); |
| 82 | bit = 0x80000000; |
| 83 | for (t = 31; t != -1; t--) { |
| 84 | bits_tmp = (reg_tmp & bit) >> t; |
| 85 | len = len + sprintf(buf + len, "%d", bits_tmp); |
| 86 | bit = bit >> 1; |
| 87 | } |
| 88 | len = len + sprintf(buf + len, "\n\n"); |
| 89 | |
| 90 | *eof = 1; |
| 91 | |
| 92 | return len; |
| 93 | } |
| 94 | |
| 95 | int __init ltq_pms_init_proc(void) |
| 96 | { |
| 97 | return create_proc_read_entry("driver/ltq_pms", 0, NULL, |
| 98 | ltq_pms_read_procmem, NULL) == NULL; |
| 99 | } |
| 100 | |
| 101 | module_init(ltq_pms_init_proc); |
| 102 | |
