diff options
Diffstat (limited to 'target/linux/lantiq/files/arch/mips/lantiq/svip/pms.c')
-rw-r--r-- | target/linux/lantiq/files/arch/mips/lantiq/svip/pms.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/target/linux/lantiq/files/arch/mips/lantiq/svip/pms.c b/target/linux/lantiq/files/arch/mips/lantiq/svip/pms.c new file mode 100644 index 000000000..5c0c808a0 --- /dev/null +++ b/target/linux/lantiq/files/arch/mips/lantiq/svip/pms.c @@ -0,0 +1,101 @@ +/************************************************************************ + * + * Copyright (c) 2007 + * Infineon Technologies AG + * St. Martin Strasse 53; 81669 Muenchen; Germany + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + ************************************************************************/ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/proc_fs.h> +#include <linux/init.h> +#include <asm/addrspace.h> + +#include <base_reg.h> +#include <sys1_reg.h> +#include <sys2_reg.h> +#include <lantiq_soc.h> + +static struct svip_reg_sys1 *const sys1 = (struct svip_reg_sys1 *)LTQ_SYS1_BASE; +static struct svip_reg_sys2 *const sys2 = (struct svip_reg_sys2 *)LTQ_SYS2_BASE; + +void svip_sys1_clk_enable(u32 mask) +{ + sys1_w32(sys1_r32(clksr) | mask, clkenr); + asm("sync;"); +} +EXPORT_SYMBOL(svip_sys1_clk_enable); + +int svip_sys1_clk_is_enabled(u32 mask) +{ + return (sys1_r32(clksr) & mask) != 0; +} +EXPORT_SYMBOL(svip_sys1_clk_is_enabled); + +void svip_sys2_clk_enable(u32 mask) +{ + sys2_w32(sys2_r32(clksr) | mask, clkenr); + asm("sync;"); +} +EXPORT_SYMBOL(svip_sys2_clk_enable); + +int svip_sys2_clk_is_enabled(u32 mask) +{ + return (sys2_r32(clksr) & mask) != 0; +} +EXPORT_SYMBOL(svip_sys2_clk_is_enabled); + +int ltq_pms_read_procmem(char *buf, char **start, off_t offset, + int count, int *eof, void *data) +{ + long len = 0; + int t = 0; + u32 bit = 0; + u32 reg_tmp, bits_tmp; + + len = sprintf(buf, "\nSVIP PMS Settings\n"); + len = len + sprintf(buf + len, + " 3 2 1 0\n"); + len = len + sprintf(buf + len, + " 210987654321098765432109876543210\n"); + len = len + sprintf(buf + len, + "---------------------------------------------\n"); + len = len + sprintf(buf + len, + "SYS1_CLKSR: "); + reg_tmp = sys1_r32(clksr); + bit = 0x80000000; + for (t = 31; t != -1; t--) { + bits_tmp = (reg_tmp & bit) >> t; + len = len + sprintf(buf + len, "%d", bits_tmp); + bit = bit >> 1; + } + len = len + sprintf(buf + len, "\n\n"); + len = len + sprintf(buf + len, "SYS2_CLKSR: "); + reg_tmp = sys2_r32(clksr); + bit = 0x80000000; + for (t = 31; t != -1; t--) { + bits_tmp = (reg_tmp & bit) >> t; + len = len + sprintf(buf + len, "%d", bits_tmp); + bit = bit >> 1; + } + len = len + sprintf(buf + len, "\n\n"); + + *eof = 1; + + return len; +} + +int __init ltq_pms_init_proc(void) +{ + return create_proc_read_entry("driver/ltq_pms", 0, NULL, + ltq_pms_read_procmem, NULL) == NULL; +} + +module_init(ltq_pms_init_proc); |