diff options
| -rw-r--r-- | arch/ppc/syslib/ppc_sys.c | 177 | ||||
| -rw-r--r-- | include/asm-ppc/mpc10x.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/mpc52xx.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/mpc8260.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/mpc83xx.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/mpc85xx.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/mpc8xx.h | 1 | ||||
| -rw-r--r-- | include/asm-ppc/ppc_sys.h | 32 |
8 files changed, 212 insertions, 3 deletions
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c index c0b93c4191e..879783a41cf 100644 --- a/arch/ppc/syslib/ppc_sys.c +++ b/arch/ppc/syslib/ppc_sys.c @@ -15,11 +15,22 @@ */ #include <linux/string.h> +#include <linux/bootmem.h> #include <asm/ppc_sys.h> int (*ppc_sys_device_fixup) (struct platform_device * pdev); static int ppc_sys_inited; +static int ppc_sys_func_inited; + +static const char *ppc_sys_func_names[] = { + [PPC_SYS_FUNC_DUMMY] = "dummy", + [PPC_SYS_FUNC_ETH] = "eth", + [PPC_SYS_FUNC_UART] = "uart", + [PPC_SYS_FUNC_HLDC] = "hldc", + [PPC_SYS_FUNC_USB] = "usb", + [PPC_SYS_FUNC_IRDA] = "irda", +}; void __init identify_ppc_sys_by_id(u32 id) { @@ -38,13 +49,13 @@ void __init identify_ppc_sys_by_id(u32 id) void __init identify_ppc_sys_by_name(char *name) { unsigned int i = 0; - while (ppc_sys_specs[i].ppc_sys_name[0]) - { + while (ppc_sys_specs[i].ppc_sys_name[0]) { if (!strcmp(ppc_sys_specs[i].ppc_sys_name, name)) break; i++; } cur_ppc_sys_spec = &ppc_sys_specs[i]; + return; } @@ -128,6 +139,165 @@ void ppc_sys_device_remove(enum ppc_sys_devices dev) } } +/* Platform-notify mapping + * Helper function for BSP code to assign board-specific platfom-divice bits + */ + +void platform_notify_map(const struct platform_notify_dev_map *map, + struct device *dev) +{ + struct platform_device *pdev; + int len, idx; + const char *s; + + /* do nothing if no device or no bus_id */ + if (!dev || !dev->bus_id) + return; + + /* call per device map */ + while (map->bus_id != NULL) { + idx = -1; + s = strrchr(dev->bus_id, '.'); + if (s != NULL) + idx = (int)simple_strtol(s + 1, NULL, 10); + else + s = dev->bus_id; + + len = s - dev->bus_id; + + if (!strncmp(dev->bus_id, map->bus_id, len)) { + pdev = container_of(dev, struct platform_device, dev); + map->rtn(pdev, idx); + } + map++; + } +} + +/* + Function assignment stuff. + Intended to work as follows: + the device name defined in foo_devices.c will be concatenated with :"func", + where func is string map of respective function from platfom_device_func enum + + The PPC_SYS_FUNC_DUMMY function is intended to remove all assignments, making the device to appear + in platform bus with unmodified name. + */ + +/* + Here we'll replace .name pointers with fixed-lenght strings + Hereby, this should be called *before* any func stuff triggeded. + */ +void ppc_sys_device_initfunc(void) +{ + int i; + const char *name; + static char new_names[NUM_PPC_SYS_DEVS][BUS_ID_SIZE]; + enum ppc_sys_devices cur_dev; + + /* If inited yet, do nothing */ + if (ppc_sys_func_inited) + return; + + for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) { + if ((cur_dev = cur_ppc_sys_spec->device_list[i]) < 0) + continue; + + if (ppc_sys_platform_devices[cur_dev].name) { + /*backup name */ + name = ppc_sys_platform_devices[cur_dev].name; + strlcpy(new_names[i], name, BUS_ID_SIZE); + ppc_sys_platform_devices[cur_dev].name = new_names[i]; + } + } + + ppc_sys_func_inited = 1; +} + +/*The "engine" of the func stuff. Here we either concat specified function string description + to the name, or remove it if PPC_SYS_FUNC_DUMMY parameter is passed here*/ +void ppc_sys_device_setfunc(enum ppc_sys_devices dev, + enum platform_device_func func) +{ + char *s; + char *name = (char *)ppc_sys_platform_devices[dev].name; + char tmp[BUS_ID_SIZE]; + + if (!ppc_sys_func_inited) { + printk(KERN_ERR "Unable to alter function - not inited!\n"); + return; + } + + if (ppc_sys_inited) { + platform_device_unregister(&ppc_sys_platform_devices[dev]); + } + + if ((s = (char *)strchr(name, ':')) != NULL) { /* reassign */ + /* Either change the name after ':' or remove func modifications */ + if (func != PPC_SYS_FUNC_DUMMY) + strlcpy(s + 1, ppc_sys_func_names[func], BUS_ID_SIZE); + else + *s = 0; + } else if (func != PPC_SYS_FUNC_DUMMY) { + /* do assignment if it is not just "clear" request */ + sprintf(tmp, "%s:%s", name, ppc_sys_func_names[func]); + strlcpy(name, tmp, BUS_ID_SIZE); + } + + if (ppc_sys_inited) { + platform_device_register(&ppc_sys_platform_devices[dev]); + } +} + +void ppc_sys_device_disable(enum ppc_sys_devices dev) +{ + BUG_ON(cur_ppc_sys_spec == NULL); + + /*Check if it is enabled*/ + if(!(cur_ppc_sys_spec->config[dev] & PPC_SYS_CONFIG_DISABLED)) { + if (ppc_sys_inited) { + platform_device_unregister(&ppc_sys_platform_devices[dev]); + } + cur_ppc_sys_spec->config[dev] |= PPC_SYS_CONFIG_DISABLED; + } +} + +void ppc_sys_device_enable(enum ppc_sys_devices dev) +{ + BUG_ON(cur_ppc_sys_spec == NULL); + + /*Check if it is disabled*/ + if(cur_ppc_sys_spec->config[dev] & PPC_SYS_CONFIG_DISABLED) { + if (ppc_sys_inited) { + platform_device_register(&ppc_sys_platform_devices[dev]); + } + cur_ppc_sys_spec->config[dev] &= ~PPC_SYS_CONFIG_DISABLED; + } + +} + +void ppc_sys_device_enable_all(void) +{ + enum ppc_sys_devices cur_dev; + int i; + + for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) { + cur_dev = cur_ppc_sys_spec->device_list[i]; + ppc_sys_device_enable(cur_dev); + } +} + +void ppc_sys_device_disable_all(void) +{ + enum ppc_sys_devices cur_dev; + int i; + + for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) { + cur_dev = cur_ppc_sys_spec->device_list[i]; + ppc_sys_device_disable(cur_dev); + } +} + + static int __init ppc_sys_init(void) { unsigned int i, dev_id, ret = 0; @@ -136,7 +306,8 @@ static int __init ppc_sys_init(void) for (i = 0; i < cur_ppc_sys_spec->num_devices; i++) { dev_id = cur_ppc_sys_spec->device_list[i]; - if (dev_id != -1) { + if ((dev_id != -1) && + !(cur_ppc_sys_spec->config[dev_id] & PPC_SYS_CONFIG_DISABLED)) { if (ppc_sys_device_fixup != NULL) ppc_sys_device_fixup(&ppc_sys_platform_devices [dev_id]); diff --git a/include/asm-ppc/mpc10x.h b/include/asm-ppc/mpc10x.h index 77b1e092c20..976ad3d94f2 100644 --- a/include/asm-ppc/mpc10x.h +++ b/include/asm-ppc/mpc10x.h @@ -165,6 +165,7 @@ enum ppc_sys_devices { MPC10X_DMA1, MPC10X_UART0, MPC10X_UART1, + NUM_PPC_SYS_DEVS, }; int mpc10x_bridge_init(struct pci_controller *hose, diff --git a/include/asm-ppc/mpc52xx.h b/include/asm-ppc/mpc52xx.h index a055e0756b9..6167f74635f 100644 --- a/include/asm-ppc/mpc52xx.h +++ b/include/asm-ppc/mpc52xx.h @@ -60,6 +60,7 @@ enum ppc_sys_devices { MPC52xx_ATA, MPC52xx_I2C1, MPC52xx_I2C2, + NUM_PPC_SYS_DEVS, }; diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h index 32145269503..6ba69a86b9d 100644 --- a/include/asm-ppc/mpc8260.h +++ b/include/asm-ppc/mpc8260.h @@ -83,6 +83,7 @@ enum ppc_sys_devices { MPC82xx_CPM_SMC2, MPC82xx_CPM_USB, MPC82xx_SEC1, + NUM_PPC_SYS_DEVS, }; #ifndef __ASSEMBLY__ diff --git a/include/asm-ppc/mpc83xx.h b/include/asm-ppc/mpc83xx.h index 7cdf60fa69b..3c23fc43bfb 100644 --- a/include/asm-ppc/mpc83xx.h +++ b/include/asm-ppc/mpc83xx.h @@ -108,6 +108,7 @@ enum ppc_sys_devices { MPC83xx_USB2_DR, MPC83xx_USB2_MPH, MPC83xx_MDIO, + NUM_PPC_SYS_DEVS, }; #endif /* CONFIG_83xx */ diff --git a/include/asm-ppc/mpc85xx.h b/include/asm-ppc/mpc85xx.h index c8a96aa44fb..f47002a60ed 100644 --- a/include/asm-ppc/mpc85xx.h +++ b/include/asm-ppc/mpc85xx.h @@ -139,6 +139,7 @@ enum ppc_sys_devices { MPC85xx_eTSEC4, MPC85xx_IIC2, MPC85xx_MDIO, + NUM_PPC_SYS_DEVS, }; /* Internal interrupts are all Level Sensitive, and Positive Polarity */ diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h index 73ec9a6db0b..3515a7fa6c8 100644 --- a/include/asm-ppc/mpc8xx.h +++ b/include/asm-ppc/mpc8xx.h @@ -111,6 +111,7 @@ enum ppc_sys_devices { MPC8xx_CPM_SMC1, MPC8xx_CPM_SMC2, MPC8xx_CPM_USB, + NUM_PPC_SYS_DEVS, }; #define PPC_PIN_SIZE (24 * 1024 * 1024) /* 24Mbytes of data pinned */ diff --git a/include/asm-ppc/ppc_sys.h b/include/asm-ppc/ppc_sys.h index bdc4dde35ed..4b94f7059eb 100644 --- a/include/asm-ppc/ppc_sys.h +++ b/include/asm-ppc/ppc_sys.h @@ -46,9 +46,26 @@ struct ppc_sys_spec { u32 value; u32 num_devices; char *ppc_sys_name; + u8 config[NUM_PPC_SYS_DEVS]; enum ppc_sys_devices *device_list; }; +struct platform_notify_dev_map { + const char *bus_id; + void (*rtn)(struct platform_device * pdev, int idx); +}; + +enum platform_device_func { + PPC_SYS_FUNC_DUMMY = 0, + PPC_SYS_FUNC_ETH = 1, + PPC_SYS_FUNC_UART = 2, + PPC_SYS_FUNC_HLDC = 3, + PPC_SYS_FUNC_USB = 4, + PPC_SYS_FUNC_IRDA = 5, +}; + +#define PPC_SYS_CONFIG_DISABLED 1 + /* describes all specific chips and which devices they have on them */ extern struct ppc_sys_spec ppc_sys_specs[]; extern struct ppc_sys_spec *cur_ppc_sys_spec; @@ -74,5 +91,20 @@ extern void *ppc_sys_get_pdata(enum ppc_sys_devices dev) __init; /* remove a device from the system */ extern void ppc_sys_device_remove(enum ppc_sys_devices dev); +/* Function assignment stuff */ +void ppc_sys_device_initfunc(void); +void ppc_sys_device_setfunc(enum ppc_sys_devices dev, + enum platform_device_func func); +void ppc_sys_device_set_func_all(enum platform_device_func func); + +void platform_notify_map(const struct platform_notify_dev_map *map, + struct device *dev); + +/* Enable / disable stuff */ +void ppc_sys_device_disable(enum ppc_sys_devices dev); +void ppc_sys_device_enable(enum ppc_sys_devices dev); +void ppc_sys_device_enable_all(void); +void ppc_sys_device_disable_all(void); + #endif /* __ASM_PPC_SYS_H */ #endif /* __KERNEL__ */ |