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ARM: OMAP: move generic EMAC init to separate file
AM35xx SoCs include DaVinci EMAC IP. Initialization code in board-am3517evm.c is pretty board independent and will work for any AM35xx based board so move this code to it's own file to be reused by other boards. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
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Ilya Yanok
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Tony Lindgren
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Mar 5, 2012
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * Copyright (C) 2011 Ilya Yanok, Emcraft Systems | ||
| * | ||
| * Based on mach-omap2/board-am3517evm.c | ||
| * Copyright (C) 2009 Texas Instruments Incorporated | ||
| * Author: Ranjith Lohithakshan <ranjithl@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 | ||
| * 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. | ||
| */ | ||
|
|
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| #include <linux/clk.h> | ||
| #include <linux/davinci_emac.h> | ||
| #include <linux/platform_device.h> | ||
| #include <plat/irqs.h> | ||
| #include <mach/am35xx.h> | ||
|
|
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| #include "control.h" | ||
|
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| static struct mdio_platform_data am35xx_emac_mdio_pdata; | ||
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| static struct resource am35xx_emac_mdio_resources[] = { | ||
| DEFINE_RES_MEM(AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET, SZ_4K), | ||
| }; | ||
|
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| static struct platform_device am35xx_emac_mdio_device = { | ||
| .name = "davinci_mdio", | ||
| .id = 0, | ||
| .num_resources = ARRAY_SIZE(am35xx_emac_mdio_resources), | ||
| .resource = am35xx_emac_mdio_resources, | ||
| .dev.platform_data = &am35xx_emac_mdio_pdata, | ||
| }; | ||
|
|
||
| static void am35xx_enable_emac_int(void) | ||
| { | ||
| u32 regval; | ||
|
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| regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR | | ||
| AM35XX_CPGMAC_C0_TX_PULSE_CLR | | ||
| AM35XX_CPGMAC_C0_MISC_PULSE_CLR | | ||
| AM35XX_CPGMAC_C0_RX_THRESH_CLR); | ||
| omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| } | ||
|
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| static void am35xx_disable_emac_int(void) | ||
| { | ||
| u32 regval; | ||
|
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| regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR | | ||
| AM35XX_CPGMAC_C0_TX_PULSE_CLR); | ||
| omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | ||
| } | ||
|
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| static struct emac_platform_data am35xx_emac_pdata = { | ||
| .ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET, | ||
| .ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET, | ||
| .ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET, | ||
| .ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE, | ||
| .hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR, | ||
| .version = EMAC_VERSION_2, | ||
| .interrupt_enable = am35xx_enable_emac_int, | ||
| .interrupt_disable = am35xx_disable_emac_int, | ||
| }; | ||
|
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| static struct resource am35xx_emac_resources[] = { | ||
| DEFINE_RES_MEM(AM35XX_IPSS_EMAC_BASE, 0x30000), | ||
| DEFINE_RES_IRQ(INT_35XX_EMAC_C0_RXTHRESH_IRQ), | ||
| DEFINE_RES_IRQ(INT_35XX_EMAC_C0_RX_PULSE_IRQ), | ||
| DEFINE_RES_IRQ(INT_35XX_EMAC_C0_TX_PULSE_IRQ), | ||
| DEFINE_RES_IRQ(INT_35XX_EMAC_C0_MISC_PULSE_IRQ), | ||
| }; | ||
|
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| static struct platform_device am35xx_emac_device = { | ||
| .name = "davinci_emac", | ||
| .id = -1, | ||
| .num_resources = ARRAY_SIZE(am35xx_emac_resources), | ||
| .resource = am35xx_emac_resources, | ||
| .dev = { | ||
| .platform_data = &am35xx_emac_pdata, | ||
| }, | ||
| }; | ||
|
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| void __init am35xx_emac_init(unsigned long mdio_bus_freq, u8 rmii_en) | ||
| { | ||
| unsigned int regval; | ||
| int err; | ||
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| am35xx_emac_pdata.rmii_en = rmii_en; | ||
| am35xx_emac_mdio_pdata.bus_freq = mdio_bus_freq; | ||
| err = platform_device_register(&am35xx_emac_device); | ||
| if (err) { | ||
| pr_err("AM35x: failed registering EMAC device: %d\n", err); | ||
| return; | ||
| } | ||
|
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| err = platform_device_register(&am35xx_emac_mdio_device); | ||
| if (err) { | ||
| pr_err("AM35x: failed registering EMAC MDIO device: %d\n", err); | ||
| platform_device_unregister(&am35xx_emac_device); | ||
| return; | ||
| } | ||
|
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| regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); | ||
| regval = regval & (~(AM35XX_CPGMACSS_SW_RST)); | ||
| omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET); | ||
| regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| /* | ||
| * Copyright (C) 2011 Ilya Yanok, Emcraft Systems | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| #define AM35XX_DEFAULT_MDIO_FREQUENCY 1000000 | ||
|
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| #if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE) | ||
| void am35xx_emac_init(unsigned long mdio_bus_freq, u8 rmii_en); | ||
| #else | ||
| static inline void am35xx_emac_init(unsigned long mdio_bus_freq, u8 rmii_en) {} | ||
| #endif |
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