From: Eduardo Valentin Date: Thu, 3 Jul 2008 09:24:40 +0000 (+0300) Subject: ARM: OMAP: McBSP: Add support for mcbsp on mach-omap1 X-Git-Tag: v2.6.27-rc1~850^2~2^9~11 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44ec9a3371d5cab323b81c95a4c01d7b5a89cdda;p=linux-2.6 ARM: OMAP: McBSP: Add support for mcbsp on mach-omap1 This patch adds support for mach-omap1 based on current mcbsp platform driver. Signed-off-by: Eduardo Valentin Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile index 5e9416e024..1bda8f5d75 100644 --- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -5,6 +5,8 @@ # Common support obj-y := io.o id.o sram.o clock.o irq.o mux.o serial.o devices.o +obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o + obj-$(CONFIG_OMAP_MPU_TIMER) += time.o obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c new file mode 100644 index 0000000000..2d2c2522b0 --- /dev/null +++ b/arch/arm/mach-omap1/mcbsp.c @@ -0,0 +1,280 @@ +/* + * linux/arch/arm/mach-omap1/mcbsp.c + * + * Copyright (C) 2008 Instituto Nokia de Tecnologia + * Contact: Eduardo Valentin + * + * 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 +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define DPS_RSTCT2_PER_EN (1 << 0) +#define DSP_RSTCT2_WD_PER_EN (1 << 1) + +struct mcbsp_internal_clk { + struct clk clk; + struct clk **childs; + int n_childs; +}; + +#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) +static void omap_mcbsp_clk_init(struct mcbsp_internal_clk *mclk) +{ + const char *clk_names[] = { "dsp_ck", "api_ck", "dspxor_ck" }; + int i; + + mclk->n_childs = ARRAY_SIZE(clk_names); + mclk->childs = kzalloc(mclk->n_childs * sizeof(struct clk *), + GFP_KERNEL); + + for (i = 0; i < mclk->n_childs; i++) { + /* We fake a platform device to get correct device id */ + struct platform_device pdev; + + pdev.dev.bus = &platform_bus_type; + pdev.id = mclk->clk.id; + mclk->childs[i] = clk_get(&pdev.dev, clk_names[i]); + if (IS_ERR(mclk->childs[i])) + printk(KERN_ERR "Could not get clock %s (%d).\n", + clk_names[i], mclk->clk.id); + } +} + +static int omap_mcbsp_clk_enable(struct clk *clk) +{ + struct mcbsp_internal_clk *mclk = container_of(clk, + struct mcbsp_internal_clk, clk); + int i; + + for (i = 0; i < mclk->n_childs; i++) + clk_enable(mclk->childs[i]); + return 0; +} + +static void omap_mcbsp_clk_disable(struct clk *clk) +{ + struct mcbsp_internal_clk *mclk = container_of(clk, + struct mcbsp_internal_clk, clk); + int i; + + for (i = 0; i < mclk->n_childs; i++) + clk_disable(mclk->childs[i]); +} + +static struct mcbsp_internal_clk omap_mcbsp_clks[] = { + { + .clk = { + .name = "mcbsp_clk", + .id = 1, + .enable = omap_mcbsp_clk_enable, + .disable = omap_mcbsp_clk_disable, + }, + }, + { + .clk = { + .name = "mcbsp_clk", + .id = 3, + .enable = omap_mcbsp_clk_enable, + .disable = omap_mcbsp_clk_disable, + }, + }, +}; + +#define omap_mcbsp_clks_size ARRAY_SIZE(omap_mcbsp_clks) +#else +#define omap_mcbsp_clks_size 0 +static struct mcbsp_internal_clk __initdata *omap_mcbsp_clks; +static inline void omap_mcbsp_clk_init(struct mcbsp_internal_clk *mclk) +{ } +#endif + +static int omap1_mcbsp_check(unsigned int id) +{ + /* REVISIT: Check correctly for number of registered McBSPs */ + if (cpu_is_omap730()) { + if (id > OMAP_MAX_MCBSP_COUNT - 2) { + printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", + id + 1); + return -ENODEV; + } + return 0; + } + + if (cpu_is_omap15xx() || cpu_is_omap16xx()) { + if (id > OMAP_MAX_MCBSP_COUNT - 1) { + printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", + id + 1); + return -ENODEV; + } + return 0; + } + + return -ENODEV; +} + +static void omap1_mcbsp_request(unsigned int id) +{ + /* + * On 1510, 1610 and 1710, McBSP1 and McBSP3 + * are DSP public peripherals. + */ + if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3) { + omap_dsp_request_mem(); + /* + * DSP external peripheral reset + * FIXME: This should be moved to dsp code + */ + __raw_writew(__raw_readw(DSP_RSTCT2) | DPS_RSTCT2_PER_EN | + DSP_RSTCT2_WD_PER_EN, DSP_RSTCT2); + } +} + +static void omap1_mcbsp_free(unsigned int id) +{ + if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3) + omap_dsp_release_mem(); +} + +static struct omap_mcbsp_ops omap1_mcbsp_ops = { + .check = omap1_mcbsp_check, + .request = omap1_mcbsp_request, + .free = omap1_mcbsp_free, +}; + +#ifdef CONFIG_ARCH_OMAP730 +static struct omap_mcbsp_platform_data omap730_mcbsp_pdata[] = { + { + .virt_base = io_p2v(OMAP730_MCBSP1_BASE), + .dma_rx_sync = OMAP_DMA_MCBSP1_RX, + .dma_tx_sync = OMAP_DMA_MCBSP1_TX, + .rx_irq = INT_730_McBSP1RX, + .tx_irq = INT_730_McBSP1TX, + .ops = &omap1_mcbsp_ops, + }, + { + .virt_base = io_p2v(OMAP730_MCBSP2_BASE), + .dma_rx_sync = OMAP_DMA_MCBSP3_RX, + .dma_tx_sync = OMAP_DMA_MCBSP3_TX, + .rx_irq = INT_730_McBSP2RX, + .tx_irq = INT_730_McBSP2TX, + .ops = &omap1_mcbsp_ops, + }, +}; +#define OMAP730_MCBSP_PDATA_SZ ARRAY_SIZE(omap730_mcbsp_pdata) +#else +#define omap730_mcbsp_pdata NULL +#define OMAP730_MCBSP_PDATA_SZ 0 +#endif + +#ifdef CONFIG_ARCH_OMAP15XX +static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = { + { + .virt_base = OMAP1510_MCBSP1_BASE, + .dma_rx_sync = OMAP_DMA_MCBSP1_RX, + .dma_tx_sync = OMAP_DMA_MCBSP1_TX, + .rx_irq = INT_McBSP1RX, + .tx_irq = INT_McBSP1TX, + .ops = &omap1_mcbsp_ops, + .clk_name = "mcbsp_clk", + }, + { + .virt_base = io_p2v(OMAP1510_MCBSP2_BASE), + .dma_rx_sync = OMAP_DMA_MCBSP2_RX, + .dma_tx_sync = OMAP_DMA_MCBSP2_TX, + .rx_irq = INT_1510_SPI_RX, + .tx_irq = INT_1510_SPI_TX, + .ops = &omap1_mcbsp_ops, + }, + { + .virt_base = OMAP1510_MCBSP3_BASE, + .dma_rx_sync = OMAP_DMA_MCBSP3_RX, + .dma_tx_sync = OMAP_DMA_MCBSP3_TX, + .rx_irq = INT_McBSP3RX, + .tx_irq = INT_McBSP3TX, + .ops = &omap1_mcbsp_ops, + .clk_name = "mcbsp_clk", + }, +}; +#define OMAP15XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap15xx_mcbsp_pdata) +#else +#define omap15xx_mcbsp_pdata NULL +#define OMAP15XX_MCBSP_PDATA_SZ 0 +#endif + +#ifdef CONFIG_ARCH_OMAP16XX +static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = { + { + .virt_base = OMAP1610_MCBSP1_BASE, + .dma_rx_sync = OMAP_DMA_MCBSP1_RX, + .dma_tx_sync = OMAP_DMA_MCBSP1_TX, + .rx_irq = INT_McBSP1RX, + .tx_irq = INT_McBSP1TX, + .ops = &omap1_mcbsp_ops, + .clk_name = "mcbsp_clk", + }, + { + .virt_base = io_p2v(OMAP1610_MCBSP2_BASE), + .dma_rx_sync = OMAP_DMA_MCBSP2_RX, + .dma_tx_sync = OMAP_DMA_MCBSP2_TX, + .rx_irq = INT_1610_McBSP2_RX, + .tx_irq = INT_1610_McBSP2_TX, + .ops = &omap1_mcbsp_ops, + }, + { + .virt_base = OMAP1610_MCBSP3_BASE, + .dma_rx_sync = OMAP_DMA_MCBSP3_RX, + .dma_tx_sync = OMAP_DMA_MCBSP3_TX, + .rx_irq = INT_McBSP3RX, + .tx_irq = INT_McBSP3TX, + .ops = &omap1_mcbsp_ops, + .clk_name = "mcbsp_clk", + }, +}; +#define OMAP16XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap16xx_mcbsp_pdata) +#else +#define omap16xx_mcbsp_pdata NULL +#define OMAP16XX_MCBSP_PDATA_SZ 0 +#endif + +int __init omap1_mcbsp_init(void) +{ + int i; + + for (i = 0; i < omap_mcbsp_clks_size; i++) { + if (cpu_is_omap15xx() || cpu_is_omap16xx()) { + omap_mcbsp_clk_init(&omap_mcbsp_clks[i]); + clk_register(&omap_mcbsp_clks[i].clk); + } + } + + if (cpu_is_omap730()) + omap_mcbsp_register_board_cfg(omap730_mcbsp_pdata, + OMAP730_MCBSP_PDATA_SZ); + + if (cpu_is_omap15xx()) + omap_mcbsp_register_board_cfg(omap15xx_mcbsp_pdata, + OMAP15XX_MCBSP_PDATA_SZ); + + if (cpu_is_omap16xx()) + omap_mcbsp_register_board_cfg(omap16xx_mcbsp_pdata, + OMAP16XX_MCBSP_PDATA_SZ); + + return omap_mcbsp_init(); +} + +arch_initcall(omap1_mcbsp_init); diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h index 88081ed13f..06e1118ddb 100644 --- a/arch/arm/mach-omap2/clock24xx.h +++ b/arch/arm/mach-omap2/clock24xx.h @@ -1747,7 +1747,8 @@ static struct clk gpt12_fck = { }; static struct clk mcbsp1_ick = { - .name = "mcbsp1_ick", + .name = "mcbsp_ick", + .id = 1, .parent = &l4_ck, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), @@ -1756,7 +1757,8 @@ static struct clk mcbsp1_ick = { }; static struct clk mcbsp1_fck = { - .name = "mcbsp1_fck", + .name = "mcbsp_fck", + .id = 1, .parent = &func_96m_ck, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), @@ -1765,7 +1767,8 @@ static struct clk mcbsp1_fck = { }; static struct clk mcbsp2_ick = { - .name = "mcbsp2_ick", + .name = "mcbsp_ick", + .id = 2, .parent = &l4_ck, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), @@ -1774,7 +1777,8 @@ static struct clk mcbsp2_ick = { }; static struct clk mcbsp2_fck = { - .name = "mcbsp2_fck", + .name = "mcbsp_fck", + .id = 2, .parent = &func_96m_ck, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), @@ -1783,7 +1787,8 @@ static struct clk mcbsp2_fck = { }; static struct clk mcbsp3_ick = { - .name = "mcbsp3_ick", + .name = "mcbsp_ick", + .id = 3, .parent = &l4_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2), @@ -1792,7 +1797,8 @@ static struct clk mcbsp3_ick = { }; static struct clk mcbsp3_fck = { - .name = "mcbsp3_fck", + .name = "mcbsp_fck", + .id = 3, .parent = &func_96m_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP24XX_CM_FCLKEN2), @@ -1801,7 +1807,8 @@ static struct clk mcbsp3_fck = { }; static struct clk mcbsp4_ick = { - .name = "mcbsp4_ick", + .name = "mcbsp_ick", + .id = 4, .parent = &l4_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2), @@ -1810,7 +1817,8 @@ static struct clk mcbsp4_ick = { }; static struct clk mcbsp4_fck = { - .name = "mcbsp4_fck", + .name = "mcbsp_fck", + .id = 4, .parent = &func_96m_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP24XX_CM_FCLKEN2), @@ -1819,7 +1827,8 @@ static struct clk mcbsp4_fck = { }; static struct clk mcbsp5_ick = { - .name = "mcbsp5_ick", + .name = "mcbsp_ick", + .id = 5, .parent = &l4_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN2), @@ -1828,7 +1837,8 @@ static struct clk mcbsp5_ick = { }; static struct clk mcbsp5_fck = { - .name = "mcbsp5_fck", + .name = "mcbsp_fck", + .id = 5, .parent = &func_96m_ck, .flags = CLOCK_IN_OMAP243X, .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP24XX_CM_FCLKEN2),