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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-28 03:27:28 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-28 03:27:28 +0400 |
commit | 1bfecd935849a45b6b47d9f011e1c278ff880512 (patch) | |
tree | 23c08a9c103c92e5a4a4cd3311823426c9d2bdf9 /arch/arm/mach-omap2/am35xx-emac.c | |
parent | 281b05392fc2cb26209b4d85abaf4889ab1991f3 (diff) | |
parent | a754a87ce8b17024358c1be8ee0232ef09a7055f (diff) | |
download | linux-1bfecd935849a45b6b47d9f011e1c278ff880512.tar.xz |
Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: board specific updates" from Arnd Bergmann/Olof Johansson:
"These changes are all specific to one board only. We're trying to
keep the number of board files low, but generally board level updates
are ok on platforms that are working on moving towards DT based
probing, which will eventually lead to removing them.
The board-ams-delta.c board file gets a conflict between the removal
of ams_delta_config and the addition of a lot of other data. The
Kconfig file has two changes in the same line, and in exynos, the
power domain cleanup conflicts with the addition of the image sensor
device.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: Amended a fix for a mismerge to board-omap4panda.c]
Signed-off-by: Olof Johansson <olof@lixom.net>"
Fixed up some fairly trivial conflicts manually.
* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (82 commits)
i.MX35-PDK: Add Camera support
ARM : mx35: 3ds-board: add framebuffer device
pxa/hx4700: Remove pcmcia platform_device structure
ARM: pxa/hx4700: Reduce sleep mode battery discharge by 35%
ARM: pxa/hx4700: Remove unwanted request for GPIO105
ARM: EXYNOS: support Exynos4210-bus Devfreq driver on Nuri board
ARM: EXYNOS: Register JPEG on nuri
ARM: EXYNOS: Register JPEG on universal_c210
ARM: S5PV210: Enable JPEG on SMDKV210
ARM: S5PV210: Add JPEG board definition
ARM: EXYNOS: Enable JPEG on Origen
ARM: EXYNOS: Enable JPEG on SMDKV310
ARM: EXYNOS: Add __init attribute to universal_camera_init()
ARM: EXYNOS: Add __init attribute to nuri_camera_init()
ARM: S5PV210: Enable FIMC on SMDKC110
ARM: S5PV210: Enable FIMC on SMDKV210
ARM: S5PV210: Enable MFC on SMDKC110
ARM: S5PV210: Enable MFC on SMDKV210
ARM: EXYNOS: Enable G2D on SMDKV310
ARM: tegra: update defconfig
...
Diffstat (limited to 'arch/arm/mach-omap2/am35xx-emac.c')
-rw-r--r-- | arch/arm/mach-omap2/am35xx-emac.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/am35xx-emac.c b/arch/arm/mach-omap2/am35xx-emac.c new file mode 100644 index 000000000000..1f97e7475206 --- /dev/null +++ b/arch/arm/mach-omap2/am35xx-emac.c @@ -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. + */ + +#include <linux/clk.h> +#include <linux/davinci_emac.h> +#include <linux/platform_device.h> +#include <plat/irqs.h> +#include <mach/am35xx.h> + +#include "control.h" + +static struct mdio_platform_data am35xx_emac_mdio_pdata; + +static struct resource am35xx_emac_mdio_resources[] = { + DEFINE_RES_MEM(AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET, SZ_4K), +}; + +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; + + 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); +} + +static void am35xx_disable_emac_int(void) +{ + u32 regval; + + 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); +} + +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, +}; + +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), +}; + +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, + }, +}; + +void __init am35xx_emac_init(unsigned long mdio_bus_freq, u8 rmii_en) +{ + unsigned int regval; + int err; + + 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; + } + + 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; + } + + 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); +} |