From: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx> This patch adds support for mach-omap2 based on current mcbsp platform driver. Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx> --- arch/arm/mach-omap2/Makefile | 2 + arch/arm/mach-omap2/mcbsp.c | 108 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 110 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-omap2/mcbsp.c diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 06348d3..05f1612 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -7,6 +7,8 @@ obj-y := irq.o id.o io.o memory.o control.o prcm.o clock.o mux.o \ devices.o serial.o gpmc.o timer-gp.o powerdomain.o \ clockdomain.o +obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o + # Functions loaded to SRAM obj-$(CONFIG_ARCH_OMAP2) += sram24xx.o diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c new file mode 100644 index 0000000..2a2462b --- /dev/null +++ b/arch/arm/mach-omap2/mcbsp.c @@ -0,0 +1,108 @@ +/* + * linux/arch/arm/mach-omap2/mcbsp.c + * + * Copyright (C) 2008 Instituto Nokia de Tecnologia + * Contact: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx> + * + * 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. + * + * Multichannel mode not supported. + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/err.h> + +#include <asm/arch/dma.h> +#include <asm/arch/mux.h> +#include <asm/arch/cpu.h> +#include <asm/arch/mcbsp.h> + +static void omap2_mcbsp2_mux_setup(void) +{ + if (cpu_is_omap2420()) { + omap_cfg_reg(Y15_24XX_MCBSP2_CLKX); + omap_cfg_reg(R14_24XX_MCBSP2_FSX); + omap_cfg_reg(W15_24XX_MCBSP2_DR); + omap_cfg_reg(V15_24XX_MCBSP2_DX); + omap_cfg_reg(V14_24XX_GPIO117); + } + /* + * TODO: Need to add MUX settings for OMAP 2430 SDP + */ +} + +static void omap2_mcbsp_request(unsigned int id) +{ + if (id == OMAP_MCBSP2) + omap2_mcbsp2_mux_setup(); +} + +static int omap2_mcbsp_check(unsigned int id) +{ + if (id > OMAP_MAX_MCBSP_COUNT - 1) { + printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", id + 1); + return -ENODEV; + } + return 0; +} + +static struct omap_mcbsp_ops omap2_mcbsp_ops = { + .request = omap2_mcbsp_request, + .check = omap2_mcbsp_check, +}; + +static struct omap_mcbsp_platform_data omap2_mcbsp_pdata[] = { +#ifdef CONFIG_ARCH_OMAP24XX + { + .virt_base = IO_ADDRESS(OMAP24XX_MCBSP1_BASE), + .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, + .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, + .rx_irq = INT_24XX_MCBSP1_IRQ_RX, + .tx_irq = INT_24XX_MCBSP1_IRQ_TX, + .ops = &omap2_mcbsp_ops, + .clocks = { "mcbsp_ick", "mcbsp_fck" }, + }, + { + .virt_base = IO_ADDRESS(OMAP24XX_MCBSP2_BASE), + .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, + .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, + .rx_irq = INT_24XX_MCBSP2_IRQ_RX, + .tx_irq = INT_24XX_MCBSP2_IRQ_TX, + .ops = &omap2_mcbsp_ops, + .clocks = { "mcbsp_ick", "mcbsp_fck" }, + }, +#endif +#ifdef CONFIG_ARCH_OMAP34XX + { + .virt_base = IO_ADDRESS(OMAP34XX_MCBSP1_BASE), + .dma_rx_sync = OMAP34XX_DMA_MCBSP1_RX, + .dma_tx_sync = OMAP34XX_DMA_MCBSP1_TX, + .rx_irq = INT_34XX_MCBSP1_IRQ_RX, + .tx_irq = INT_34XX_MCBSP1_IRQ_TX, + .ops = &omap2_mcbsp_ops, + .clocks = { "mcbsp_ick", "mcbsp_fck" }, + }, + { + .virt_base = IO_ADDRESS(OMAP34XX_MCBSP2_BASE), + .dma_rx_sync = OMAP34XX_DMA_MCBSP2_RX, + .dma_tx_sync = OMAP34XX_DMA_MCBSP2_TX, + .rx_irq = INT_34XX_MCBSP2_IRQ_RX, + .tx_irq = INT_34XX_MCBSP2_IRQ_TX, + .ops = &omap2_mcbsp_ops, + .clocks = { "mcbsp_ick", "mcbsp_fck" }, + }, +#endif +}; +#define mcbsp_count ARRAY_SIZE(omap2_mcbsp_pdata) + +int __init omap2_mcbsp_init(void) +{ + if (mcbsp_count > 0) + omap_mcbsp_register_board_cfg(omap2_mcbsp_pdata, mcbsp_count); + + return omap_mcbsp_init(); +} +arch_initcall(omap2_mcbsp_init); -- 1.5.5.1.67.gbdb8.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html