diff options
Diffstat (limited to 'recipes/linux/linux-2.6.21/modular-init-smc91x.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.21/modular-init-smc91x.patch | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.21/modular-init-smc91x.patch b/recipes/linux/linux-2.6.21/modular-init-smc91x.patch new file mode 100644 index 0000000000..98fdd4ca38 --- /dev/null +++ b/recipes/linux/linux-2.6.21/modular-init-smc91x.patch @@ -0,0 +1,203 @@ +Index: linux-2.6.21gum/drivers/net/Kconfig +=================================================================== +--- linux-2.6.21gum.orig/drivers/net/Kconfig ++++ linux-2.6.21gum/drivers/net/Kconfig +@@ -836,6 +836,12 @@ config SMC91X + module, say M here and read <file:Documentation/modules.txt> as well + as <file:Documentation/networking/net-modules.txt>. + ++config SMC91X_GUMSTIX ++ tristate ++ default m if SMC91X=m ++ default y if SMC91X=y ++ depends on SMC91X && ARCH_GUMSTIX ++ + config SMC9194 + tristate "SMC 9194 support" + depends on NET_VENDOR_SMC && (ISA || MAC && BROKEN) +Index: linux-2.6.21gum/drivers/net/Makefile +=================================================================== +--- linux-2.6.21gum.orig/drivers/net/Makefile ++++ linux-2.6.21gum/drivers/net/Makefile +@@ -200,6 +200,7 @@ obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o + + obj-$(CONFIG_MACB) += macb.o + ++obj-$(CONFIG_SMC91X_GUMSTIX) += gumstix-smc91x.o + obj-$(CONFIG_ARM) += arm/ + obj-$(CONFIG_DEV_APPLETALK) += appletalk/ + obj-$(CONFIG_TR) += tokenring/ +Index: linux-2.6.21gum/drivers/net/smc91x.c +=================================================================== +--- linux-2.6.21gum.orig/drivers/net/smc91x.c ++++ linux-2.6.21gum/drivers/net/smc91x.c +@@ -2373,6 +2373,10 @@ static struct platform_driver smc_driver + }, + }; + ++#ifdef CONFIG_ARCH_GUMSTIX ++extern void gumstix_smc91x_load(void); ++#endif ++ + static int __init smc_init(void) + { + #ifdef MODULE +@@ -2384,6 +2388,10 @@ static int __init smc_init(void) + #endif + #endif + ++#ifdef CONFIG_ARCH_GUMSTIX ++ gumstix_smc91x_load(); ++#endif ++ + return platform_driver_register(&smc_driver); + } + +Index: linux-2.6.21gum/drivers/net/gumstix-smc91x.c +=================================================================== +--- /dev/null ++++ linux-2.6.21gum/drivers/net/gumstix-smc91x.c +@@ -0,0 +1,143 @@ ++/* ++ * Gumstix SMC91C111 chip intialization driver ++ * ++ * Author: Craig Hughes ++ * Created: December 9, 2004 ++ * Copyright: (C) 2004 Craig Hughes ++ * ++ * 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/ioport.h> ++#include <linux/device.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++ ++#include <asm/hardware.h> ++#include <asm/arch/pxa-regs.h> ++#include <asm/delay.h> ++ ++#include <asm/arch/gumstix.h> ++ ++#define SMC_DEBUG 0 ++#include <asm/io.h> ++#include "smc91x.h" ++ ++static struct resource gumstix_smc91x0_resources[] = { ++ [0] = { ++ .name = "smc91x-regs", ++ .start = PXA_CS1_PHYS + 0x00000300, ++ .end = PXA_CS1_PHYS + 0x000fffff, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = GUMSTIX_ETH0_IRQ, ++ .end = GUMSTIX_ETH0_IRQ, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct resource gumstix_smc91x1_resources[] = { ++ [0] = { ++ .name = "smc91x-regs", ++ .start = PXA_CS2_PHYS + 0x00000300, ++ .end = PXA_CS2_PHYS + 0x000fffff, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = GUMSTIX_ETH1_IRQ, ++ .end = GUMSTIX_ETH1_IRQ, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static struct platform_device gumstix_smc91x0_device = { ++ .name = "smc91x", ++ .id = 0, ++ .num_resources = ARRAY_SIZE(gumstix_smc91x0_resources), ++ .resource = gumstix_smc91x0_resources, ++}; ++ ++static struct platform_device gumstix_smc91x1_device = { ++ .name = "smc91x", ++ .id = 1, ++ .num_resources = ARRAY_SIZE(gumstix_smc91x1_resources), ++ .resource = gumstix_smc91x1_resources, ++}; ++ ++static struct platform_device *smc91x_devices[] = { ++ &gumstix_smc91x0_device, ++ &gumstix_smc91x1_device, ++}; ++ ++/* First we're going to test if there's a 2nd SMC91C111, and if not, then we'll free up those resources and the GPIO lines ++ * that it would otherwise use. We have no choice but to probe by doing: ++ * Set nCS2 to CS2 mode ++ * Set the reset line to GPIO out mode, and pull it high, then drop it low (to trigger reset) ++ * Read from the memory space to check for the sentinel sequence identifying a likely SMC91C111 device ++ */ ++int __init gumstix_smc91x_init(void) ++{ ++ unsigned int val, num_devices=ARRAY_SIZE(smc91x_devices); ++ void *ioaddr; ++ ++ /* Set up nPWE */ ++ pxa_gpio_mode(GPIO49_nPWE_MD); ++ ++ pxa_gpio_mode(GPIO78_nCS_2_MD); ++ // If either if statement fails, then we'll drop out and turn_off_eth1, ++ // if both succeed, then we'll skip that and just proceed with 2 cards ++ if(request_mem_region(gumstix_smc91x1_resources[0].start, SMC_IO_EXTENT, "smc91x probe")) ++ { ++ ioaddr = ioremap(gumstix_smc91x1_resources[0].start, SMC_IO_EXTENT); ++ val = ioread16(ioaddr + BANK_SELECT); ++ iounmap(ioaddr); ++ release_mem_region(gumstix_smc91x1_resources[0].start, SMC_IO_EXTENT); ++ if ((val & 0xFF00) == 0x3300) { ++ goto proceed; ++ } ++ } ++ ++turn_off_eth1: ++ // This is apparently not an SMC91C111 ++ // So, let's decrement the number of devices to request, and reset the GPIO lines to GPIO IN mode ++ num_devices--; ++ smc91x_devices[1] = NULL; ++ pxa_gpio_mode(78 | GPIO_IN); ++ ++proceed: ++ pxa_gpio_mode(GPIO15_nCS_1_MD); ++ ++ if(smc91x_devices[1]) pxa_gpio_mode(GPIO_GUMSTIX_ETH1_RST_MD); ++ pxa_gpio_mode(GPIO_GUMSTIX_ETH0_RST_MD); ++ if(smc91x_devices[1]) GPSR(GPIO_GUMSTIX_ETH1_RST) = GPIO_bit(GPIO_GUMSTIX_ETH1_RST); ++ GPSR(GPIO_GUMSTIX_ETH0_RST) = GPIO_bit(GPIO_GUMSTIX_ETH0_RST); ++ udelay(1); // Hold RESET for at least 100ns ++ if(smc91x_devices[1]) GPCR(GPIO_GUMSTIX_ETH1_RST) = GPIO_bit(GPIO_GUMSTIX_ETH1_RST); ++ GPCR(GPIO_GUMSTIX_ETH0_RST) = GPIO_bit(GPIO_GUMSTIX_ETH0_RST); ++ msleep(50); ++ ++ return platform_add_devices(smc91x_devices, num_devices); ++} ++ ++void __exit gumstix_smc91x_exit(void) ++{ ++ if(smc91x_devices[1] != NULL) platform_device_unregister(&gumstix_smc91x1_device); ++ platform_device_unregister(&gumstix_smc91x0_device); ++} ++ ++void gumstix_smc91x_load(void) {} ++EXPORT_SYMBOL(gumstix_smc91x_load); ++ ++module_init(gumstix_smc91x_init); ++module_exit(gumstix_smc91x_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Craig Hughes <craig@gumstix.com>"); ++MODULE_DESCRIPTION("Gumstix board SMC91C111 chip initialization driver"); ++MODULE_VERSION("1:0.1"); |