From 7d76e3f171216757a2ea630d76442084f88a0b4c Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Tue, 7 Oct 2008 11:58:25 +0100 Subject: [ARM] 5286/2: pxa: rename cm-x270* to cm-x2xx* to allow addition of cm-x255 support Signed-off-by: Russ Dill Signed-off-by: Mike Rapoport Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/cm-x2xx-pci.c | 220 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 220 insertions(+) create mode 100644 arch/arm/mach-pxa/cm-x2xx-pci.c (limited to 'arch/arm/mach-pxa/cm-x2xx-pci.c') diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c new file mode 100644 index 00000000000..2d5bcea1e52 --- /dev/null +++ b/arch/arm/mach-pxa/cm-x2xx-pci.c @@ -0,0 +1,220 @@ +/* + * linux/arch/arm/mach-pxa/cm-x270-pci.c + * + * PCI bios-type initialisation for PCI machines + * + * Bits taken from various places. + * + * Copyright (C) 2007, 2008 Compulab, Ltd. + * Mike Rapoport + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +unsigned long it8152_base_address; +static int cmx270_it8152_irq_gpio; + +/* + * Only first 64MB of memory can be accessed via PCI. + * We use GFP_DMA to allocate safe buffers to do map/unmap. + * This is really ugly and we need a better way of specifying + * DMA-capable regions of memory. + */ +void __init cmx270_pci_adjust_zones(int node, unsigned long *zone_size, + unsigned long *zhole_size) +{ + unsigned int sz = SZ_64M >> PAGE_SHIFT; + + if (machine_is_armcore()) { + pr_info("Adjusting zones for CM-X270\n"); + + /* + * Only adjust if > 64M on current system + */ + if (node || (zone_size[0] <= sz)) + return; + + zone_size[1] = zone_size[0] - sz; + zone_size[0] = sz; + zhole_size[1] = zhole_size[0]; + zhole_size[0] = 0; + } +} + +static void cmx270_it8152_irq_demux(unsigned int irq, struct irq_desc *desc) +{ + /* clear our parent irq */ + GEDR(cmx270_it8152_irq_gpio) = GPIO_bit(cmx270_it8152_irq_gpio); + + it8152_irq_demux(irq, desc); +} + +void __cmx270_pci_init_irq(int irq_gpio) +{ + it8152_init_irq(); + + cmx270_it8152_irq_gpio = irq_gpio; + + set_irq_type(gpio_to_irq(irq_gpio), IRQ_TYPE_EDGE_RISING); + + set_irq_chained_handler(gpio_to_irq(irq_gpio), cmx270_it8152_irq_demux); +} + +#ifdef CONFIG_PM +static unsigned long sleep_save_ite[10]; + +void __cmx270_pci_suspend(void) +{ + /* save ITE state */ + sleep_save_ite[0] = __raw_readl(IT8152_INTC_PDCNIMR); + sleep_save_ite[1] = __raw_readl(IT8152_INTC_LPCNIMR); + sleep_save_ite[2] = __raw_readl(IT8152_INTC_LPNIAR); + + /* Clear ITE IRQ's */ + __raw_writel((0), IT8152_INTC_PDCNIRR); + __raw_writel((0), IT8152_INTC_LPCNIRR); +} + +void __cmx270_pci_resume(void) +{ + /* restore IT8152 state */ + __raw_writel((sleep_save_ite[0]), IT8152_INTC_PDCNIMR); + __raw_writel((sleep_save_ite[1]), IT8152_INTC_LPCNIMR); + __raw_writel((sleep_save_ite[2]), IT8152_INTC_LPNIAR); +} +#else +void cmx270_pci_suspend(void) {} +void cmx270_pci_resume(void) {} +#endif + +/* PCI IRQ mapping*/ +static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq; + + dev_dbg(&dev->dev, "%s: slot=%x, pin=%x\n", __func__, slot, pin); + + irq = it8152_pci_map_irq(dev, slot, pin); + if (irq) + return irq; + + /* + Here comes the ugly part. The routing is baseboard specific, + but defining a platform for each possible base of CM-X270 is + unrealistic. Here we keep mapping for ATXBase and SB-X270. + */ + /* ATXBASE PCI slot */ + if (slot == 7) + return IT8152_PCI_INTA; + + /* ATXBase/SB-x270 CardBus */ + if (slot == 8 || slot == 0) + return IT8152_PCI_INTB; + + /* ATXBase Ethernet */ + if (slot == 9) + return IT8152_PCI_INTA; + + /* SB-x270 Ethernet */ + if (slot == 16) + return IT8152_PCI_INTA; + + /* PC104+ interrupt routing */ + if ((slot == 17) || (slot == 19)) + return IT8152_PCI_INTA; + if ((slot == 18) || (slot == 20)) + return IT8152_PCI_INTB; + + return(0); +} + +static void cmx270_pci_preinit(void) +{ + pr_info("Initializing CM-X270 PCI subsystem\n"); + + __raw_writel(0x800, IT8152_PCI_CFG_ADDR); + if (__raw_readl(IT8152_PCI_CFG_DATA) == 0x81521283) { + pr_info("PCI Bridge found.\n"); + + /* set PCI I/O base at 0 */ + writel(0x848, IT8152_PCI_CFG_ADDR); + writel(0, IT8152_PCI_CFG_DATA); + + /* set PCI memory base at 0 */ + writel(0x840, IT8152_PCI_CFG_ADDR); + writel(0, IT8152_PCI_CFG_DATA); + + writel(0x20, IT8152_GPIO_GPDR); + + /* CardBus Controller on ATXbase baseboard */ + writel(0x4000, IT8152_PCI_CFG_ADDR); + if (readl(IT8152_PCI_CFG_DATA) == 0xAC51104C) { + pr_info("CardBus Bridge found.\n"); + + /* Configure socket 0 */ + writel(0x408C, IT8152_PCI_CFG_ADDR); + writel(0x1022, IT8152_PCI_CFG_DATA); + + writel(0x4080, IT8152_PCI_CFG_ADDR); + writel(0x3844d060, IT8152_PCI_CFG_DATA); + + writel(0x4090, IT8152_PCI_CFG_ADDR); + writel(((readl(IT8152_PCI_CFG_DATA) & 0xffff) | + 0x60440000), + IT8152_PCI_CFG_DATA); + + writel(0x4018, IT8152_PCI_CFG_ADDR); + writel(0xb0000000, IT8152_PCI_CFG_DATA); + + /* Configure socket 1 */ + writel(0x418C, IT8152_PCI_CFG_ADDR); + writel(0x1022, IT8152_PCI_CFG_DATA); + + writel(0x4180, IT8152_PCI_CFG_ADDR); + writel(0x3844d060, IT8152_PCI_CFG_DATA); + + writel(0x4190, IT8152_PCI_CFG_ADDR); + writel(((readl(IT8152_PCI_CFG_DATA) & 0xffff) | + 0x60440000), + IT8152_PCI_CFG_DATA); + + writel(0x4118, IT8152_PCI_CFG_ADDR); + writel(0xb0000000, IT8152_PCI_CFG_DATA); + } + } +} + +static struct hw_pci cmx270_pci __initdata = { + .swizzle = pci_std_swizzle, + .map_irq = cmx270_pci_map_irq, + .nr_controllers = 1, + .setup = it8152_pci_setup, + .scan = it8152_pci_scan_bus, + .preinit = cmx270_pci_preinit, +}; + +static int __init cmx270_init_pci(void) +{ + if (machine_is_armcore()) + pci_common_init(&cmx270_pci); + + return 0; +} + +subsys_initcall(cmx270_init_pci); -- cgit v1.2.3-18-g5258 From da591937ba8c3a98ced845247859693a27543863 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 5 Oct 2008 10:25:44 +0100 Subject: [ARM] 5280/1: pxa: prepare cm-x2xx.c and cm-x2xx-pci.[ch] for addition of CM-X255 - Change CM-X255 and CM-X270 common function prefix from cmx270 to cmx2xx - Split cmx2xx_init to common and CM-X270-specific parts - Use dynamic assignement for DM9000 resources and led GPIOs. Signed-off-by: Russ Dill Signed-off-by: Mike Rapoport Acked-by: Eric Miao Signed-off-by: Russell King --- arch/arm/mach-pxa/cm-x2xx-pci.c | 50 ++++++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 25 deletions(-) (limited to 'arch/arm/mach-pxa/cm-x2xx-pci.c') diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c index 2d5bcea1e52..b6e93ecbf9d 100644 --- a/arch/arm/mach-pxa/cm-x2xx-pci.c +++ b/arch/arm/mach-pxa/cm-x2xx-pci.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-pxa/cm-x270-pci.c + * linux/arch/arm/mach-pxa/cm-x2xx-pci.c * * PCI bios-type initialisation for PCI machines * @@ -28,7 +28,7 @@ #include unsigned long it8152_base_address; -static int cmx270_it8152_irq_gpio; +static int cmx2xx_it8152_irq_gpio; /* * Only first 64MB of memory can be accessed via PCI. @@ -36,13 +36,13 @@ static int cmx270_it8152_irq_gpio; * This is really ugly and we need a better way of specifying * DMA-capable regions of memory. */ -void __init cmx270_pci_adjust_zones(int node, unsigned long *zone_size, +void __init cmx2xx_pci_adjust_zones(int node, unsigned long *zone_size, unsigned long *zhole_size) { unsigned int sz = SZ_64M >> PAGE_SHIFT; if (machine_is_armcore()) { - pr_info("Adjusting zones for CM-X270\n"); + pr_info("Adjusting zones for CM-X2XX\n"); /* * Only adjust if > 64M on current system @@ -57,29 +57,29 @@ void __init cmx270_pci_adjust_zones(int node, unsigned long *zone_size, } } -static void cmx270_it8152_irq_demux(unsigned int irq, struct irq_desc *desc) +static void cmx2xx_it8152_irq_demux(unsigned int irq, struct irq_desc *desc) { /* clear our parent irq */ - GEDR(cmx270_it8152_irq_gpio) = GPIO_bit(cmx270_it8152_irq_gpio); + GEDR(cmx2xx_it8152_irq_gpio) = GPIO_bit(cmx2xx_it8152_irq_gpio); it8152_irq_demux(irq, desc); } -void __cmx270_pci_init_irq(int irq_gpio) +void __cmx2xx_pci_init_irq(int irq_gpio) { it8152_init_irq(); - cmx270_it8152_irq_gpio = irq_gpio; + cmx2xx_it8152_irq_gpio = irq_gpio; set_irq_type(gpio_to_irq(irq_gpio), IRQ_TYPE_EDGE_RISING); - set_irq_chained_handler(gpio_to_irq(irq_gpio), cmx270_it8152_irq_demux); + set_irq_chained_handler(gpio_to_irq(irq_gpio), cmx2xx_it8152_irq_demux); } #ifdef CONFIG_PM static unsigned long sleep_save_ite[10]; -void __cmx270_pci_suspend(void) +void __cmx2xx_pci_suspend(void) { /* save ITE state */ sleep_save_ite[0] = __raw_readl(IT8152_INTC_PDCNIMR); @@ -91,7 +91,7 @@ void __cmx270_pci_suspend(void) __raw_writel((0), IT8152_INTC_LPCNIRR); } -void __cmx270_pci_resume(void) +void __cmx2xx_pci_resume(void) { /* restore IT8152 state */ __raw_writel((sleep_save_ite[0]), IT8152_INTC_PDCNIMR); @@ -99,12 +99,12 @@ void __cmx270_pci_resume(void) __raw_writel((sleep_save_ite[2]), IT8152_INTC_LPNIAR); } #else -void cmx270_pci_suspend(void) {} -void cmx270_pci_resume(void) {} +void cmx2xx_pci_suspend(void) {} +void cmx2xx_pci_resume(void) {} #endif /* PCI IRQ mapping*/ -static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +static int __init cmx2xx_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { int irq; @@ -116,14 +116,14 @@ static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) /* Here comes the ugly part. The routing is baseboard specific, - but defining a platform for each possible base of CM-X270 is - unrealistic. Here we keep mapping for ATXBase and SB-X270. + but defining a platform for each possible base of CM-X2XX is + unrealistic. Here we keep mapping for ATXBase and SB-X2XX. */ /* ATXBASE PCI slot */ if (slot == 7) return IT8152_PCI_INTA; - /* ATXBase/SB-x270 CardBus */ + /* ATXBase/SB-X2XX CardBus */ if (slot == 8 || slot == 0) return IT8152_PCI_INTB; @@ -144,9 +144,9 @@ static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) return(0); } -static void cmx270_pci_preinit(void) +static void cmx2xx_pci_preinit(void) { - pr_info("Initializing CM-X270 PCI subsystem\n"); + pr_info("Initializing CM-X2XX PCI subsystem\n"); __raw_writel(0x800, IT8152_PCI_CFG_ADDR); if (__raw_readl(IT8152_PCI_CFG_DATA) == 0x81521283) { @@ -200,21 +200,21 @@ static void cmx270_pci_preinit(void) } } -static struct hw_pci cmx270_pci __initdata = { +static struct hw_pci cmx2xx_pci __initdata = { .swizzle = pci_std_swizzle, - .map_irq = cmx270_pci_map_irq, + .map_irq = cmx2xx_pci_map_irq, .nr_controllers = 1, .setup = it8152_pci_setup, .scan = it8152_pci_scan_bus, - .preinit = cmx270_pci_preinit, + .preinit = cmx2xx_pci_preinit, }; -static int __init cmx270_init_pci(void) +static int __init cmx2xx_init_pci(void) { if (machine_is_armcore()) - pci_common_init(&cmx270_pci); + pci_common_init(&cmx2xx_pci); return 0; } -subsys_initcall(cmx270_init_pci); +subsys_initcall(cmx2xx_init_pci); -- cgit v1.2.3-18-g5258 From a7f3f0309b68d8d07a97a54c492802c294bccacd Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 5 Oct 2008 10:26:55 +0100 Subject: [ARM] 5282/1: pxa: add CM-X255 support Signed-off-by: Russ Dill Signed-off-by: Mike Rapoport Signed-off-by: Russell King --- arch/arm/mach-pxa/cm-x2xx-pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-pxa/cm-x2xx-pci.c') diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c index b6e93ecbf9d..3156b25f6e9 100644 --- a/arch/arm/mach-pxa/cm-x2xx-pci.c +++ b/arch/arm/mach-pxa/cm-x2xx-pci.c @@ -131,7 +131,11 @@ static int __init cmx2xx_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) if (slot == 9) return IT8152_PCI_INTA; - /* SB-x270 Ethernet */ + /* CM-x255 Onboard Ethernet */ + if (slot == 15) + return IT8152_PCI_INTC; + + /* SB-x2xx Ethernet */ if (slot == 16) return IT8152_PCI_INTA; -- cgit v1.2.3-18-g5258