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authorArnd Bergmann <arnd@arndb.de>2015-05-28 23:41:13 +0300
committerArnd Bergmann <arnd@arndb.de>2015-05-28 23:41:13 +0300
commit542459e7ffdd3b3b90eda31a5a80330c6fb4526c (patch)
tree25edc59c5d4e658146f63fb4756cc4f20e782946 /arch/arm/mach-omap2
parent898a7f36c661a2121f77212f1337115b9e3527b5 (diff)
parent52dfcbfc94833b0192d439127ee9ff46023cdbb2 (diff)
downloadlinux-542459e7ffdd3b3b90eda31a5a80330c6fb4526c.tar.xz
Merge tag 'omap-for-v4.2/dt-pt1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "Device tree related changes for omaps" from Tony Lindgren: - Configure MMC data lines 4..8 for 1.8V IO on boards that are using them as GPIOs instead of MMC data lines - Add support for Baltos IR5221 - Add device tree support for LogicPD Torpedo devkit - Add 3717 core pinctrl region - Add gta04 1w and GSM audio support - Add wilink and ov2659 support for am437x-gp-evm - Add am335x-evm bluetooth and mmc3 support - Enable omap5-uevm uart wakeup interrupt - Enable I2C2 on BeagleBone as it's used for the capes - Use defines for LDP GPIO keys * tag 'omap-for-v4.2/dt-pt1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am335x-evm: add mmc3 and wlan definitions to dts ARM: dts: Enable SDIO card interrupt for 37xx-evm ARM: dts: Fix ldp gpio keys to use defines ARM: dts: Beaglebone i2c definitions ARM: dts: am437x-gp-evm: add DT nodes for ov2659 sensor ARM: dts: add DTS for Baltos IR5221 ARM: dts: omap5-uevm: Add Uart wakeup interrupt ARM: dts: omap3-gta04: Add GSM audio support ARM: dts: am335x-evm: add bluetooth support ARM: dts: am437x-gp-evm: add wilink8 support ARM: dts: omap3-gta04: Add hdqw1 support ARM: dts: add core2 padconf region for am3517 ARM: dts: Add minimal support for LogicPD Torpedo DM3730 devkit ARM: OMAP3: Add support for configuring MMC pins as GPIO pins
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/control.c3
-rw-r--r--arch/arm/mach-omap2/control.h3
-rw-r--r--arch/arm/mach-omap2/pdata-quirks.c22
3 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index af95a624fe71..f008930277ed 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -112,6 +112,7 @@ struct omap3_control_regs {
u32 csirxfe;
u32 iva2_bootaddr;
u32 iva2_bootmod;
+ u32 wkup_ctrl;
u32 debobs_0;
u32 debobs_1;
u32 debobs_2;
@@ -455,6 +456,7 @@ void omap3_control_save_context(void)
omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR);
control_context.iva2_bootmod =
omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD);
+ control_context.wkup_ctrl = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0));
control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1));
control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2));
@@ -512,6 +514,7 @@ void omap3_control_restore_context(void)
OMAP343X_CONTROL_IVA2_BOOTADDR);
omap_ctrl_writel(control_context.iva2_bootmod,
OMAP343X_CONTROL_IVA2_BOOTMOD);
+ omap_ctrl_writel(control_context.wkup_ctrl, OMAP34XX_CONTROL_WKUP_CTRL);
omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0));
omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1));
omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2));
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index 80d2b7d8e36e..ec406bc2c6d4 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -231,6 +231,9 @@
#define OMAP343X_PADCONF_ETK_D15 OMAP343X_PADCONF_ETK(17)
/* 34xx GENERAL_WKUP register offsets */
+#define OMAP34XX_CONTROL_WKUP_CTRL (OMAP343X_CONTROL_GENERAL_WKUP - 0x4)
+#define OMAP36XX_GPIO_IO_PWRDNZ BIT(6)
+
#define OMAP343X_CONTROL_WKUP_DEBOBSMUX(i) (OMAP343X_CONTROL_GENERAL_WKUP + \
0x008 + (i))
#define OMAP343X_CONTROL_WKUP_DEBOBS0 (OMAP343X_CONTROL_GENERAL_WKUP + 0x008)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index af11511dda50..821171cf6b7d 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -44,6 +44,27 @@ static void __init omap2420_n8x0_legacy_init(void)
#endif
#ifdef CONFIG_ARCH_OMAP3
+/*
+ * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
+ * mode for MMC1 in case bootloader did not configure things.
+ * Note that if the pins are used for MMC1, pbias-regulator
+ * manages the IO voltage.
+ */
+static void __init omap3_gpio126_127_129(void)
+{
+ u32 reg;
+
+ reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
+ reg &= ~OMAP343X_PBIASLITEVMODE1;
+ reg |= OMAP343X_PBIASLITEPWRDNZ1;
+ omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
+ if (cpu_is_omap3630()) {
+ reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
+ reg |= OMAP36XX_GPIO_IO_PWRDNZ;
+ omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
+ }
+}
+
static void __init hsmmc2_internal_input_clk(void)
{
u32 reg;
@@ -356,6 +377,7 @@ static struct pdata_init pdata_quirks[] __initdata = {
{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
{ "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
{ "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
+ { "logicpd,dm3730-torpedo-devkit", omap3_gpio126_127_129, },
{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
{ "ti,am3517-evm", am3517_evm_legacy_init, },
{ "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },