From bab50a35ee703955bd708a4a44cd56ed30e601c8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 26 Jan 2012 11:50:23 +0000 Subject: ARM: sa11x0: assabet/neponest: create neponset device in assabet.c The neponset board is a daughter board for the Assabet. Create the neponset platform device in assabet.c, where we don't have to wrap it with machine_is_assabet() stuff. We also create this device dynamically rather than keeping it as a static device. Signed-off-by: Russell King --- arch/arm/mach-sa1100/assabet.c | 12 +++++++++ arch/arm/mach-sa1100/neponset.c | 56 ++++++++++------------------------------- 2 files changed, 25 insertions(+), 43 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c index e3805d4c052..f2030bc22cd 100644 --- a/arch/arm/mach-sa1100/assabet.c +++ b/arch/arm/mach-sa1100/assabet.c @@ -197,6 +197,15 @@ static struct mcp_plat_data assabet_mcp_data = { .sclk_rate = 11981000, }; +#ifdef CONFIG_ASSABET_NEPONSET +static struct resource neponset_resources[] = { + DEFINE_RES_MEM(0x10000000, 0x08000000), + DEFINE_RES_MEM(0x18000000, 0x04000000), + DEFINE_RES_MEM(0x40000000, SZ_8K), + DEFINE_RES_IRQ(IRQ_GPIO25), +}; +#endif + static void __init assabet_init(void) { /* @@ -247,6 +256,9 @@ static void __init assabet_init(void) #ifndef CONFIG_ASSABET_NEPONSET printk( "Warning: Neponset detected but full support " "hasn't been configured in the kernel\n" ); +#else + platform_device_register_simple("neponset", 0, + neponset_resources, ARRAY_SIZE(neponset_resources)); #endif } diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index 59223baa7c1..2a9e1e2223f 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -27,6 +27,8 @@ #define NEP_IRQ_SA1111 2 #define NEP_IRQ_NR 3 +extern void sa1110_mb_disable(void); + struct neponset_drvdata { struct platform_device *sa1111; struct platform_device *smc91x; @@ -222,6 +224,13 @@ static int __devinit neponset_probe(struct platform_device *dev) goto err_alloc; } + if (WHOAMI != 0x11) { + dev_warn(&dev->dev, "Neponset board detected, but wrong ID: %02x\n", + WHOAMI); + ret = -ENODEV; + goto err_alloc; + } + d = kzalloc(sizeof(*d), GFP_KERNEL); if (!d) { ret = -ENOMEM; @@ -264,6 +273,9 @@ static int __devinit neponset_probe(struct platform_device *dev) sa1100_register_uart_fns(&neponset_port_fns); + /* Ensure that the memory bus request/grant signals are setup */ + sa1110_mb_disable(); + /* Disable GPIO 0/1 drivers so the buttons work on the Assabet */ NCR_0 = NCR_GP01_OFF; @@ -346,51 +358,9 @@ static struct platform_driver neponset_device_driver = { }, }; -static struct resource neponset_resources[] = { - DEFINE_RES_MEM(0x10000000, 0x08000000), - DEFINE_RES_MEM(0x18000000, 0x04000000), - DEFINE_RES_MEM(0x40000000, SZ_8K), - DEFINE_RES_IRQ(IRQ_GPIO25), -}; - -static struct platform_device neponset_device = { - .name = "neponset", - .id = 0, - .num_resources = ARRAY_SIZE(neponset_resources), - .resource = neponset_resources, -}; - -extern void sa1110_mb_disable(void); - static int __init neponset_init(void) { - platform_driver_register(&neponset_device_driver); - - /* - * The Neponset is only present on the Assabet machine type. - */ - if (!machine_is_assabet()) - return -ENODEV; - - /* - * Ensure that the memory bus request/grant signals are setup, - * and the grant is held in its inactive state, whether or not - * we actually have a Neponset attached. - */ - sa1110_mb_disable(); - - if (!machine_has_neponset()) { - printk(KERN_DEBUG "Neponset expansion board not present\n"); - return -ENODEV; - } - - if (WHOAMI != 0x11) { - printk(KERN_WARNING "Neponset board detected, but " - "wrong ID: %02x\n", WHOAMI); - return -ENODEV; - } - - return platform_device_register(&neponset_device); + return platform_driver_register(&neponset_device_driver); } subsys_initcall(neponset_init); -- cgit v1.2.3-18-g5258