diff options
Diffstat (limited to 'arch/arm/mach-omap1')
| -rw-r--r-- | arch/arm/mach-omap1/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/mcbsp.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/timer.c | 173 |
3 files changed, 219 insertions, 1 deletions
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile index 5b114d1..11c85cd2 100644 --- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -4,7 +4,7 @@ # Common support obj-y := io.o id.o sram.o time.o irq.o mux.o flash.o serial.o devices.o dma.o -obj-y += clock.o clock_data.o opp_data.o reset.o pm_bus.o +obj-y += clock.o clock_data.o opp_data.o reset.o pm_bus.o timer.o obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c index ab7395d..91f9abb 100644 --- a/arch/arm/mach-omap1/mcbsp.c +++ b/arch/arm/mach-omap1/mcbsp.c @@ -31,6 +31,7 @@ static int dsp_use; static struct clk *api_clk; static struct clk *dsp_clk; +static struct platform_device **omap_mcbsp_devices; static void omap1_mcbsp_request(unsigned int id) { @@ -78,6 +79,17 @@ static struct omap_mcbsp_ops omap1_mcbsp_ops = { .free = omap1_mcbsp_free, }; +#define OMAP7XX_MCBSP1_BASE 0xfffb1000 +#define OMAP7XX_MCBSP2_BASE 0xfffb1800 + +#define OMAP1510_MCBSP1_BASE 0xe1011800 +#define OMAP1510_MCBSP2_BASE 0xfffb1000 +#define OMAP1510_MCBSP3_BASE 0xe1017000 + +#define OMAP1610_MCBSP1_BASE 0xe1011800 +#define OMAP1610_MCBSP2_BASE 0xfffb1000 +#define OMAP1610_MCBSP3_BASE 0xe1017000 + #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) struct resource omap7xx_mcbsp_res[][6] = { { @@ -369,6 +381,39 @@ static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = { #define OMAP16XX_MCBSP_COUNT 0 #endif +static void omap_mcbsp_register_board_cfg(struct resource *res, int res_count, + struct omap_mcbsp_platform_data *config, int size) +{ + int i; + + omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *), + GFP_KERNEL); + if (!omap_mcbsp_devices) { + printk(KERN_ERR "Could not register McBSP devices\n"); + return; + } + + for (i = 0; i < size; i++) { + struct platform_device *new_mcbsp; + int ret; + + new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1); + if (!new_mcbsp) + continue; + platform_device_add_resources(new_mcbsp, &res[i * res_count], + res_count); + config[i].reg_size = 2; + config[i].reg_step = 2; + new_mcbsp->dev.platform_data = &config[i]; + ret = platform_device_add(new_mcbsp); + if (ret) { + platform_device_put(new_mcbsp); + continue; + } + omap_mcbsp_devices[i] = new_mcbsp; + } +} + static int __init omap1_mcbsp_init(void) { if (!cpu_class_is_omap1()) diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c new file mode 100644 index 0000000..6e90665 --- /dev/null +++ b/arch/arm/mach-omap1/timer.c @@ -0,0 +1,173 @@ +/** + * OMAP1 Dual-Mode Timers - platform device registration + * + * Contains first level initialization routines which internally + * generates timer device information and registers with linux + * device model. It also has low level function to chnage the timer + * input clock source. + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * Tarun Kanti DebBarma <tarun.kanti@ti.com> + * Thara Gopinath <thara@ti.com> + * + * 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. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/platform_device.h> + +#include <mach/irqs.h> + +#include <plat/dmtimer.h> + +#define OMAP1610_GPTIMER1_BASE 0xfffb1400 +#define OMAP1610_GPTIMER2_BASE 0xfffb1c00 +#define OMAP1610_GPTIMER3_BASE 0xfffb2400 +#define OMAP1610_GPTIMER4_BASE 0xfffb2c00 +#define OMAP1610_GPTIMER5_BASE 0xfffb3400 +#define OMAP1610_GPTIMER6_BASE 0xfffb3c00 +#define OMAP1610_GPTIMER7_BASE 0xfffb7400 +#define OMAP1610_GPTIMER8_BASE 0xfffbd400 + +#define OMAP1_DM_TIMER_COUNT 8 + +static int omap1_dm_timer_set_src(struct platform_device *pdev, + int source) +{ + int n = (pdev->id - 1) << 1; + u32 l; + + l = __raw_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); + l |= source << n; + __raw_writel(l, MOD_CONF_CTRL_1); + + return 0; +} + + +int __init omap1_dm_timer_init(void) +{ + int i; + int ret; + struct dmtimer_platform_data *pdata; + struct platform_device *pdev; + + if (!cpu_is_omap16xx()) + return 0; + + for (i = 1; i <= OMAP1_DM_TIMER_COUNT; i++) { + struct resource res[2]; + u32 base, irq; + + switch (i) { + case 1: + base = OMAP1610_GPTIMER1_BASE; + irq = INT_1610_GPTIMER1; + break; + case 2: + base = OMAP1610_GPTIMER2_BASE; + irq = INT_1610_GPTIMER2; + break; + case 3: + base = OMAP1610_GPTIMER3_BASE; + irq = INT_1610_GPTIMER3; + break; + case 4: + base = OMAP1610_GPTIMER4_BASE; + irq = INT_1610_GPTIMER4; + break; + case 5: + base = OMAP1610_GPTIMER5_BASE; + irq = INT_1610_GPTIMER5; + break; + case 6: + base = OMAP1610_GPTIMER6_BASE; + irq = INT_1610_GPTIMER6; + break; + case 7: + base = OMAP1610_GPTIMER7_BASE; + irq = INT_1610_GPTIMER7; + break; + case 8: + base = OMAP1610_GPTIMER8_BASE; + irq = INT_1610_GPTIMER8; + break; + default: + /* + * not supposed to reach here. + * this is to remove warning. + */ + return -EINVAL; + } + + pdev = platform_device_alloc("omap_timer", i); + if (!pdev) { + pr_err("%s: Failed to device alloc for dmtimer%d\n", + __func__, i); + return -ENOMEM; + } + + memset(res, 0, 2 * sizeof(struct resource)); + res[0].start = base; + res[0].end = base + 0x46; + res[0].flags = IORESOURCE_MEM; + res[1].start = irq; + res[1].end = irq; + res[1].flags = IORESOURCE_IRQ; + ret = platform_device_add_resources(pdev, res, + ARRAY_SIZE(res)); + if (ret) { + dev_err(&pdev->dev, "%s: Failed to add resources.\n", + __func__); + goto err_free_pdev; + } + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, "%s: Failed to allocate pdata.\n", + __func__); + ret = -ENOMEM; + goto err_free_pdata; + } + + pdata->set_timer_src = omap1_dm_timer_set_src; + pdata->needs_manual_reset = 1; + + ret = platform_device_add_data(pdev, pdata, sizeof(*pdata)); + if (ret) { + dev_err(&pdev->dev, "%s: Failed to add platform data.\n", + __func__); + goto err_free_pdata; + } + + ret = platform_device_add(pdev); + if (ret) { + dev_err(&pdev->dev, "%s: Failed to add platform device.\n", + __func__); + goto err_free_pdata; + } + + dev_dbg(&pdev->dev, " Registered.\n"); + } + + return 0; + +err_free_pdata: + kfree(pdata); + +err_free_pdev: + platform_device_unregister(pdev); + + return ret; +} +arch_initcall(omap1_dm_timer_init); |