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authorStefano Babic <sbabic@denx.de>2012-12-08 12:02:45 +0100
committerStefano Babic <sbabic@denx.de>2012-12-08 12:02:45 +0100
commit05a860c228fe6c8f2e7aced8cc8ef88bc1038363 (patch)
tree764536da9202b9de387a0d957829f64dfba818b7 /arch/arm/cpu
parent393ff47ba3123208f7c4f08d63f114300a41d0c4 (diff)
parentfd4d564b3c80b111f18c93adb14233a6a7ddb0e9 (diff)
downloadtalos-obmc-uboot-05a860c228fe6c8f2e7aced8cc8ef88bc1038363.tar.gz
talos-obmc-uboot-05a860c228fe6c8f2e7aced8cc8ef88bc1038363.zip
Merge branch 'master' of git://git.denx.de/u-boot into master
Conflicts: drivers/power/power_fsl.c include/configs/mx35pdk.h include/configs/mx53loco.h include/configs/woodburn_common.h board/woodburn/woodburn.c These boards still use the old old PMIC framework, so they do not merge properly after the power framework was merged into mainline. Fix all conflicts and update woodburn to use Power Framework. Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c85
-rw-r--r--arch/arm/cpu/armv7/am33xx/clock.c8
-rw-r--r--arch/arm/cpu/armv7/omap3/Makefile1
-rw-r--r--arch/arm/cpu/armv7/omap3/am35x_musb.c75
4 files changed, 169 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index e4c123cd21..da5bc73185 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -33,6 +33,11 @@
#include <i2c.h>
#include <miiphy.h>
#include <cpsw.h>
+#include <asm/errno.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/musb.h>
+#include <asm/omap_musb.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -63,3 +68,83 @@ void setup_clocks_for_console(void)
/* Not yet implemented */
return;
}
+
+/* AM33XX has two MUSB controllers which can be host or gadget */
+#if (defined(CONFIG_MUSB_GADGET) || defined(CONFIG_MUSB_HOST)) && \
+ (defined(CONFIG_AM335X_USB0) || defined(CONFIG_AM335X_USB1))
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+/* USB 2.0 PHY Control */
+#define CM_PHY_PWRDN (1 << 0)
+#define CM_PHY_OTG_PWRDN (1 << 1)
+#define OTGVDET_EN (1 << 19)
+#define OTGSESSENDEN (1 << 20)
+
+static void am33xx_usb_set_phy_power(u8 on, u32 *reg_addr)
+{
+ if (on) {
+ clrsetbits_le32(reg_addr, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN,
+ OTGVDET_EN | OTGSESSENDEN);
+ } else {
+ clrsetbits_le32(reg_addr, 0, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN);
+ }
+}
+
+static struct musb_hdrc_config musb_config = {
+ .multipoint = 1,
+ .dyn_fifo = 1,
+ .num_eps = 16,
+ .ram_bits = 12,
+};
+
+#ifdef CONFIG_AM335X_USB0
+static void am33xx_otg0_set_phy_power(u8 on)
+{
+ am33xx_usb_set_phy_power(on, &cdev->usb_ctrl0);
+}
+
+struct omap_musb_board_data otg0_board_data = {
+ .set_phy_power = am33xx_otg0_set_phy_power,
+};
+
+static struct musb_hdrc_platform_data otg0_plat = {
+ .mode = CONFIG_AM335X_USB0_MODE,
+ .config = &musb_config,
+ .power = 50,
+ .platform_ops = &musb_dsps_ops,
+ .board_data = &otg0_board_data,
+};
+#endif
+
+#ifdef CONFIG_AM335X_USB1
+static void am33xx_otg1_set_phy_power(u8 on)
+{
+ am33xx_usb_set_phy_power(on, &cdev->usb_ctrl1);
+}
+
+struct omap_musb_board_data otg1_board_data = {
+ .set_phy_power = am33xx_otg1_set_phy_power,
+};
+
+static struct musb_hdrc_platform_data otg1_plat = {
+ .mode = CONFIG_AM335X_USB1_MODE,
+ .config = &musb_config,
+ .power = 50,
+ .platform_ops = &musb_dsps_ops,
+ .board_data = &otg1_board_data,
+};
+#endif
+#endif
+
+int arch_misc_init(void)
+{
+#ifdef CONFIG_AM335X_USB0
+ musb_register(&otg0_plat, &otg0_board_data,
+ (void *)AM335X_USB0_OTG_BASE);
+#endif
+#ifdef CONFIG_AM335X_USB1
+ musb_register(&otg1_plat, &otg1_board_data,
+ (void *)AM335X_USB1_OTG_BASE);
+#endif
+ return 0;
+}
diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c
index bc2abb657c..0b4cb4e529 100644
--- a/arch/arm/cpu/armv7/am33xx/clock.c
+++ b/arch/arm/cpu/armv7/am33xx/clock.c
@@ -40,6 +40,7 @@
#define CLK_MODE_MASK 0xfffffff8
#define CLK_DIV_SEL 0xFFFFFFE0
#define CPGMAC0_IDLE 0x30000
+#define DPLL_CLKDCOLDO_GATE_CTRL 0x300
const struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP;
@@ -194,6 +195,11 @@ static void enable_per_clocks(void)
writel(PRCM_MOD_EN, &cmrtc->rtcclkctrl);
while (readl(&cmrtc->rtcclkctrl) != PRCM_MOD_EN)
;
+
+ /* MUSB */
+ writel(PRCM_MOD_EN, &cmper->usb0clkctrl);
+ while (readl(&cmper->usb0clkctrl) != PRCM_MOD_EN)
+ ;
}
static void mpu_pll_config(void)
@@ -290,6 +296,8 @@ static void per_pll_config(void)
while (readl(&cmwkup->idlestdpllper) != ST_DPLL_CLK)
;
+
+ writel(DPLL_CLKDCOLDO_GATE_CTRL, &cmwkup->clkdcoldodpllper);
}
void ddr_pll_config(unsigned int ddrpll_m)
diff --git a/arch/arm/cpu/armv7/omap3/Makefile b/arch/arm/cpu/armv7/omap3/Makefile
index ac597be25a..de167eea56 100644
--- a/arch/arm/cpu/armv7/omap3/Makefile
+++ b/arch/arm/cpu/armv7/omap3/Makefile
@@ -38,6 +38,7 @@ endif
COBJS-$(CONFIG_DRIVER_TI_EMAC) += emac.o
COBJS-$(CONFIG_EMIF4) += emif4.o
COBJS-$(CONFIG_SDRC) += sdrc.o
+COBJS-$(CONFIG_USB_MUSB_AM35X) += am35x_musb.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS) $(COBJS-y) $(SOBJS))
diff --git a/arch/arm/cpu/armv7/omap3/am35x_musb.c b/arch/arm/cpu/armv7/omap3/am35x_musb.c
new file mode 100644
index 0000000000..7183c4f248
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/am35x_musb.c
@@ -0,0 +1,75 @@
+/*
+ * This file configures the internal USB PHY in AM35X.
+ *
+ * Copyright (C) 2012 Ilya Yanok <ilya.yanok@gmail.com>
+ *
+ * Based on omap_phy_internal.c code from Linux by
+ * Hema HK <hemahk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/am35x_def.h>
+
+void am35x_musb_reset(void)
+{
+ /* Reset the musb interface */
+ clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
+ 0, USBOTGSS_SW_RST);
+ clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
+ USBOTGSS_SW_RST, 0);
+}
+
+void am35x_musb_phy_power(u8 on)
+{
+ unsigned long start = get_timer(0);
+
+ if (on) {
+ /*
+ * Start the on-chip PHY and its PLL.
+ */
+ clrsetbits_le32(&am35x_scm_general_regs->devconf2,
+ CONF2_RESET | CONF2_PHYPWRDN | CONF2_OTGPWRDN,
+ CONF2_PHY_PLLON);
+
+ debug("Waiting for PHY clock good...\n");
+ while (!(readl(&am35x_scm_general_regs->devconf2)
+ & CONF2_PHYCLKGD)) {
+
+ if (get_timer(start) > CONFIG_SYS_HZ / 10) {
+ printf("musb PHY clock good timed out\n");
+ break;
+ }
+ }
+ } else {
+ /*
+ * Power down the on-chip PHY.
+ */
+ clrsetbits_le32(&am35x_scm_general_regs->devconf2,
+ CONF2_PHY_PLLON,
+ CONF2_PHYPWRDN | CONF2_OTGPWRDN);
+ }
+}
+
+void am35x_musb_clear_irq(void)
+{
+ clrsetbits_le32(&am35x_scm_general_regs->lvl_intr_clr,
+ 0, USBOTGSS_INT_CLR);
+ readl(&am35x_scm_general_regs->lvl_intr_clr);
+}
+
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