diff options
Diffstat (limited to 'packages/linux/linux-omap2-git/beagleboard/00004-omap2-mcbsp.patch')
| -rw-r--r-- | packages/linux/linux-omap2-git/beagleboard/00004-omap2-mcbsp.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/packages/linux/linux-omap2-git/beagleboard/00004-omap2-mcbsp.patch b/packages/linux/linux-omap2-git/beagleboard/00004-omap2-mcbsp.patch new file mode 100644 index 0000000000..f31604d658 --- /dev/null +++ b/packages/linux/linux-omap2-git/beagleboard/00004-omap2-mcbsp.patch @@ -0,0 +1,144 @@ +From: Eduardo Valentin <eduardo.valentin@indt.org.br>
+
+This patch adds support for mach-omap2 based on current
+mcbsp platform driver.
+
+Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
+---
+ arch/arm/mach-omap2/Makefile | 2 +
+ arch/arm/mach-omap2/mcbsp.c | 105 ++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 107 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 552664c..84fa698 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..e2ee8f7
+--- /dev/null
++++ b/arch/arm/mach-omap2/mcbsp.c
+@@ -0,0 +1,105 @@
++/*
++ * linux/arch/arm/mach-omap2/mcbsp.c
++ *
++ * Copyright (C) 2008 Instituto Nokia de Tecnologia
++ * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
++ *
++ * 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)
++{
++ 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 (cpu_is_omap2420() && (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 = 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(OMAP34XX_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
++};
++#define mcbsp_count ARRAY_SIZE(omap2_mcbsp_pdata)
++
++int __init omap2_mcbsp_init(void)
++{
++ 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
+
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