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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 17:43:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 17:43:53 -0700 |
commit | a5ebba6b54bc8038a38d3eacac3a79bbeaf3ee24 (patch) | |
tree | d36eb26a7efd4e00381bc9f6474ea3ec31340585 /arch/arm/mach-omap2/msdi.c | |
parent | e81218f5f0fd219bd75768d845159ba4810bdd48 (diff) | |
parent | 6b21a9ce0402e0c5fd2adfa3d41328fdd8f55a9a (diff) |
Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc power management changes from Arnd Bergmann:
"These are various power management related changes, mainly concerning
cpuidle on i.MX and OMAP, as well as a the move of the omap
smartreflex driver to live in the power subsystem."
Fix up conflicts in arch/arm/mach-{imx/mach-imx6q.c,omap2/prm2xxx_3xxx.h}
* tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
ARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge
ARM: OMAP2+: do not allow SmartReflex to be built as a module
ARM: OMAP2: Use hwmod to initialize mmc for 2420
ARM: OMAP3: PM: cpuidle: optimize the clkdm idle latency in C1 state
ARM: OMAP3: PM: cpuidle: optimize the PER latency in C1 state
ARM: OMAP3: PM: cpuidle: default to C1 in next_valid_state
ARM: OMAP3: PM: cleanup cam_pwrdm leftovers
ARM: OMAP3: PM: call pre/post transition per powerdomain
ARM: OMAP2+: powerdomain: allow pre/post transtion to be per pwrdm
ARM: OMAP3: PM: Remove IO Daisychain control from cpuidle
ARM: OMAP3PLUS: hwmod: reconfigure IO Daisychain during hwmod mux
ARM: OMAP3+: PRM: Enable IO wake up
ARM: OMAP4: PRM: Add IO Daisychain support
ARM: OMAP3: PM: Move IO Daisychain function to omap3 prm file
ARM: OMAP3: PM: correct enable/disable of daisy io chain
ARM: OMAP2+: PRM: fix compile for OMAP4-only build
W1: OMAP HDQ1W: use runtime PM
ARM: OMAP2+: HDQ1W: use omap_device
W1: OMAP HDQ1W: use 32-bit register accesses
W1: OMAP HDQ1W: allow driver to be built on all OMAP2+
...
Diffstat (limited to 'arch/arm/mach-omap2/msdi.c')
-rw-r--r-- | arch/arm/mach-omap2/msdi.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c index ef2a6924731..fb5bc6cf377 100644 --- a/arch/arm/mach-omap2/msdi.c +++ b/arch/arm/mach-omap2/msdi.c @@ -22,11 +22,15 @@ */ #include <linux/kernel.h> +#include <linux/err.h> #include <plat/omap_hwmod.h> +#include <plat/omap_device.h> #include <plat/mmc.h> #include "common.h" +#include "control.h" +#include "mux.h" /* * MSDI_CON_OFFSET: offset in bytes of the MSDI IP block's CON register @@ -86,3 +90,72 @@ int omap_msdi_reset(struct omap_hwmod *oh) return 0; } + +#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) + +static inline void omap242x_mmc_mux(struct omap_mmc_platform_data + *mmc_controller) +{ + if ((mmc_controller->slots[0].switch_pin > 0) && \ + (mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES)) + omap_mux_init_gpio(mmc_controller->slots[0].switch_pin, + OMAP_PIN_INPUT_PULLUP); + if ((mmc_controller->slots[0].gpio_wp > 0) && \ + (mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES)) + omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp, + OMAP_PIN_INPUT_PULLUP); + + omap_mux_init_signal("sdmmc_cmd", 0); + omap_mux_init_signal("sdmmc_clki", 0); + omap_mux_init_signal("sdmmc_clko", 0); + omap_mux_init_signal("sdmmc_dat0", 0); + omap_mux_init_signal("sdmmc_dat_dir0", 0); + omap_mux_init_signal("sdmmc_cmd_dir", 0); + if (mmc_controller->slots[0].caps & MMC_CAP_4_BIT_DATA) { + omap_mux_init_signal("sdmmc_dat1", 0); + omap_mux_init_signal("sdmmc_dat2", 0); + omap_mux_init_signal("sdmmc_dat3", 0); + omap_mux_init_signal("sdmmc_dat_dir1", 0); + omap_mux_init_signal("sdmmc_dat_dir2", 0); + omap_mux_init_signal("sdmmc_dat_dir3", 0); + } + + /* + * Use internal loop-back in MMC/SDIO Module Input Clock + * selection + */ + if (mmc_controller->slots[0].internal_clock) { + u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); + v |= (1 << 24); + omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); + } +} + +void __init omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data) +{ + struct platform_device *pdev; + struct omap_hwmod *oh; + int id = 0; + char *oh_name = "msdi1"; + char *dev_name = "mmci-omap"; + + if (!mmc_data[0]) { + pr_err("%s fails: Incomplete platform data\n", __func__); + return; + } + + omap242x_mmc_mux(mmc_data[0]); + + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("Could not look up %s\n", oh_name); + return; + } + pdev = omap_device_build(dev_name, id, oh, mmc_data[0], + sizeof(struct omap_mmc_platform_data), NULL, 0, 0); + if (IS_ERR(pdev)) + WARN(1, "Can'd build omap_device for %s:%s.\n", + dev_name, oh->name); +} + +#endif |