diff options
Diffstat (limited to 'recipes/linux/linux-2.6.27/ts72xx/0017-TS-72xx-SBC-proc-info.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.27/ts72xx/0017-TS-72xx-SBC-proc-info.patch | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.27/ts72xx/0017-TS-72xx-SBC-proc-info.patch b/recipes/linux/linux-2.6.27/ts72xx/0017-TS-72xx-SBC-proc-info.patch new file mode 100644 index 0000000000..28326ba5c8 --- /dev/null +++ b/recipes/linux/linux-2.6.27/ts72xx/0017-TS-72xx-SBC-proc-info.patch @@ -0,0 +1,249 @@ +From f64468d71fee788dde67d80ad2cb0d7bf9d514bc Mon Sep 17 00:00:00 2001 +From: Matthieu Crapet <mcrapet@gmail.com> +Date: Sun, 4 Jan 2009 15:50:45 +0100 +Subject: [PATCH] TS-72xx SBC proc info +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Technologic Systems TS-72XX sbc /proc/driver/sbcinfo entry. + +Signed-off-by: Petr Štetiar <ynezz@true.cz> +--- + arch/arm/mach-ep93xx/Kconfig | 7 ++ + arch/arm/mach-ep93xx/Makefile | 1 + + arch/arm/mach-ep93xx/include/mach/ts72xx.h | 14 +++ + arch/arm/mach-ep93xx/ts72xx.c | 5 + + arch/arm/mach-ep93xx/ts72xx_sbcinfo.c | 147 ++++++++++++++++++++++++++++ + 5 files changed, 174 insertions(+), 0 deletions(-) + create mode 100644 arch/arm/mach-ep93xx/ts72xx_sbcinfo.c + +diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig +index ea8549b..3d3ec7e 100644 +--- a/arch/arm/mach-ep93xx/Kconfig ++++ b/arch/arm/mach-ep93xx/Kconfig +@@ -88,6 +88,13 @@ config MACH_TS72XX + Say 'Y' here if you want your kernel to support the + Technologic Systems TS-72xx board. + ++config MACH_TS72XX_SBCINFO ++ tristate "Add procfs /proc/driver/sbcinfo" ++ depends on MACH_TS72XX ++ help ++ Say 'Y' to add a procfs entry containing some information ++ related to Technologic Systems TS-72xx SBC. ++ + endmenu + + endif +diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile +index c1252ca..bbf8f9a 100644 +--- a/arch/arm/mach-ep93xx/Makefile ++++ b/arch/arm/mach-ep93xx/Makefile +@@ -16,3 +16,4 @@ obj-$(CONFIG_MACH_EDB9315A) += edb9315a.o + obj-$(CONFIG_MACH_GESBC9312) += gesbc9312.o + obj-$(CONFIG_MACH_MICRO9) += micro9.o + obj-$(CONFIG_MACH_TS72XX) += ts72xx.o ++obj-$(CONFIG_MACH_TS72XX_SBCINFO) += ts72xx_sbcinfo.o +diff --git a/arch/arm/mach-ep93xx/include/mach/ts72xx.h b/arch/arm/mach-ep93xx/include/mach/ts72xx.h +index cf9544c..601d0a3 100644 +--- a/arch/arm/mach-ep93xx/include/mach/ts72xx.h ++++ b/arch/arm/mach-ep93xx/include/mach/ts72xx.h +@@ -103,6 +103,10 @@ + #define TS72XX_RS485_MODE_PHYS_BASE 0x23000000 + #define TS72XX_RS485_MODE_SIZE 0x00001000 + ++#define TS72XX_PLD_VERSION_VIRT_BASE 0xfebf5000 ++#define TS72XX_PLD_VERSION_PHYS_BASE 0x23400000 ++#define TS72XX_PLD_VERSION_SIZE 0x00001000 ++ + #ifndef __ASSEMBLY__ + #include <asm/io.h> + +@@ -138,4 +142,14 @@ static inline int is_rs485_installed(void) + return !!(__raw_readb(TS72XX_OPTIONS_VIRT_BASE) & + TS72XX_OPTIONS_COM2_RS485); + } ++ ++static inline int get_ts72xx_pld_version(void) ++{ ++ return (__raw_readb(TS72XX_PLD_VERSION_VIRT_BASE) & 0x7); ++} ++ ++static inline int is_jp6_set(void) ++{ ++ return (__raw_readb(TS72XX_OPTIONS2_VIRT_BASE) & 0x1); ++} + #endif +diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c +index ea3deeb..9835b05 100644 +--- a/arch/arm/mach-ep93xx/ts72xx.c ++++ b/arch/arm/mach-ep93xx/ts72xx.c +@@ -31,6 +31,11 @@ static struct map_desc ts72xx_io_desc[] __initdata = { + .pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE), + .length = TS72XX_MODEL_SIZE, + .type = MT_DEVICE, ++ }, { ++ .virtual = TS72XX_PLD_VERSION_VIRT_BASE, ++ .pfn = __phys_to_pfn(TS72XX_PLD_VERSION_PHYS_BASE), ++ .length = TS72XX_PLD_VERSION_SIZE, ++ .type = MT_DEVICE, + }, { + .virtual = TS72XX_OPTIONS_VIRT_BASE, + .pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE), +diff --git a/arch/arm/mach-ep93xx/ts72xx_sbcinfo.c b/arch/arm/mach-ep93xx/ts72xx_sbcinfo.c +new file mode 100644 +index 0000000..7fe4e77 +--- /dev/null ++++ b/arch/arm/mach-ep93xx/ts72xx_sbcinfo.c +@@ -0,0 +1,147 @@ ++/* ++ * Technologic Systems TS-72XX sbc /proc/driver/sbcinfo entry. ++ * ++ * Original idea by Liberty Young (Technologic Systems). ++ * ++ * (c) Copyright 2008 Matthieu Crapet <mcrapet@gmail.com> ++ * ++ * 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/kernel.h> ++#include <linux/init.h> ++#include <linux/proc_fs.h> ++#include <mach/ts72xx.h> ++ ++ ++struct infos { ++ int model, pld; ++ int option_ad; ++ int option_rs485; ++ unsigned char jumpers[6]; // 0=off,1=on,2=error ++}; ++ ++static void get_sbcinfo(struct infos *data) ++{ ++ void __iomem *p; ++ ++ /* Board model */ ++ switch (__raw_readb(TS72XX_MODEL_VIRT_BASE)) { ++ case TS72XX_MODEL_TS7200: ++ data->model = 7200; ++ break; ++ case TS72XX_MODEL_TS7250: ++ data->model = 7250; ++ break; ++ case TS72XX_MODEL_TS7260: ++ data->model = 7260; ++ break; ++ default: ++ data->model = 0; ++ } ++ ++ data->pld = get_ts72xx_pld_version(); ++ ++ /* A/D converter (8 x 12-bit channels) */ ++ if ((data->model == 7200) || (data->model = 7250)) { ++ data->option_ad = is_max197_installed(); ++ } else { ++ data->option_ad = 0; ++ } ++ ++ /* COM2 RS-485 */ ++ if (is_rs485_installed()) { ++ data->option_rs485 = 1; ++ } else { ++ data->option_rs485 = 0; ++ } ++ ++ /* jumpers */ ++ p = ioremap(TS72XX_JUMPERS_MAX197_PHYS_BASE, TS72XX_JUMPERS_MAX197_SIZE); ++ if (p) { ++ unsigned char c = __raw_readb(p); ++ ++ data->jumpers[0] = 2; // JP1 (bootstrap) ++ data->jumpers[1] = !!(c & 0x01); // JP2 (enable serial console) ++ data->jumpers[2] = !!(c & 0x02); // JP3 (flash write enable) ++ data->jumpers[3] = !(c & 0x08); // JP4 (console on COM2) ++ data->jumpers[4] = !(c & 0x10); // JP5 (test) ++ data->jumpers[5] = !!(is_jp6_set()); // JP6 (user jumper) ++ ++ iounmap(p); ++ } else { ++ data->jumpers[0] = data->jumpers[1] = data->jumpers[2] = 2; ++ data->jumpers[3] = data->jumpers[4] = data->jumpers[5] = 2; ++ } ++ ++} ++ ++ ++static int ts72xx_sbcinfo_read_proc(char *buffer, char **start, off_t offset, ++ int count, int *eof, void *data) ++{ ++ int len, size = count; ++ char *p = buffer; ++ struct infos nfo; ++ const char jpc[3] = { 'n', 'y', '?' }; ++ ++ get_sbcinfo(&nfo); ++ len = scnprintf(p, size, ++ "Model : TS-%d (PLD rev %c)\n" ++ "Option max197 A/D : %s\n" ++ "Option RS-485 : %s\n" ++ "Jumpers : JP2=%c JP3=%c JP4=%c JP5=%c JP6=%c\n", ++ nfo.model, nfo.pld + 0x40, ++ (nfo.option_ad ? "yes" : "no"), ++ (nfo.option_rs485 ? "yes" : "no"), ++ jpc[nfo.jumpers[1]], jpc[nfo.jumpers[2]], jpc[nfo.jumpers[3]], jpc[nfo.jumpers[4]], ++ jpc[nfo.jumpers[5]]); ++ ++ if (len <= offset + count) ++ *eof = 1; ++ ++ *start = buffer + offset; ++ len -= offset; ++ ++ if (len > count) ++ len = count; ++ if (len < 0) ++ len = 0; ++ ++ return len; ++} ++ ++ ++static int __init ts72xx_sbcinfo_init(void) ++{ ++ struct proc_dir_entry *entry; ++ int ret = 0; ++ ++ entry = create_proc_read_entry("driver/sbcinfo", 0, ++ NULL, ts72xx_sbcinfo_read_proc, NULL); ++ ++ if (!entry) { ++ printk(KERN_ERR "sbcinfo: can't create /proc/driver/sbcinfo\n"); ++ ret = -ENOMEM; ++ } ++ ++ return ret; ++} ++ ++static void __exit ts72xx_sbcinfo_exit(void) ++{ ++ remove_proc_entry("driver/sbcinfo", NULL); ++ return; ++} ++ ++module_init(ts72xx_sbcinfo_init); ++module_exit(ts72xx_sbcinfo_exit); ++ ++MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>"); ++MODULE_DESCRIPTION("Show information of Technologic Systems TS-72XX sbc"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION("1.0"); +-- +1.6.0.4 + |