This commit enables support for USB Gadgets on the Exynos4210 (C210 Universal)
reference target.
Signed-off-by: Lukasz Majewski <l.majew...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
Cc: Minkyu Kang <mk7.k...@samsung.com>
CC: Remy Bohmer <li...@bohmer.net>
---
Changes for v2:
- Rename the S5PC210_Universal to Exynos4210
Changes for v3:
- status check removed
- SAFEOUT1 LDO enabled for USB operation
- Reorder of USB LDOs
---
/checkpatch.pl -
total: 0 errors, 0 warnings, 79 lines checked
---
arch/arm/include/asm/arch-exynos/cpu.h | 1 +
board/samsung/universal_c210/universal.c | 48 ++++++++++++++++++++++++++++++
include/configs/s5pc210_universal.h | 4 ++
include/max8998_pmic.h | 1 +
4 files changed, 54 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h
b/arch/arm/include/asm/arch-exynos/cpu.h
index 4464d27..6d97b99 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -46,6 +46,7 @@
#define EXYNOS4_ADC_BASE 0x13910000
#define EXYNOS4_PWMTIMER_BASE 0x139D0000
#define EXYNOS4_MODEM_BASE 0x13A00000
+#define EXYNOS4_USBPHY_CONTROL 0x10020704
#ifndef __ASSEMBLY__
#include <asm/io.h>
diff --git a/board/samsung/universal_c210/universal.c
b/board/samsung/universal_c210/universal.c
index f9b8a76..8393e4f 100644
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -28,6 +28,9 @@
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
#include <pmic.h>
+#include <usb/s3c_udc.h>
+#include <asm/arch/cpu.h>
+#include <max8998_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -253,3 +256,48 @@ int board_mmc_init(bd_t *bis)
}
#endif
+
+#ifdef CONFIG_USB_GADGET
+static int s5pc210_phy_control(int on)
+{
+ int ret;
+ struct pmic *p = get_pmic();
+
+ if (pmic_probe(p))
+ return -1;
+
+ if (on) {
+ ret |= pmic_set_output(p,
+ MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
+ MAX8998_SAFEOUT1, LDO_ON);
+ ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
+ MAX8998_LDO3, LDO_ON);
+ ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
+ MAX8998_LDO8, LDO_ON);
+
+ } else {
+ ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
+ MAX8998_LDO8, LDO_OFF);
+ ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
+ MAX8998_LDO3, LDO_OFF);
+ ret |= pmic_set_output(p,
+ MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
+ MAX8998_SAFEOUT1, LDO_OFF);
+ }
+
+ if (ret) {
+ puts("MAX8998 LDO setting error!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+struct s3c_plat_otg_data s5pc210_otg_data = {
+ .phy_control = s5pc210_phy_control,
+ .regs_phy = EXYNOS4_USBPHY_BASE,
+ .regs_otg = EXYNOS4_USBOTG_BASE,
+ .usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL,
+ .usb_flags = PHY0_SLEEP,
+};
+#endif
diff --git a/include/configs/s5pc210_universal.h
b/include/configs/s5pc210_universal.h
index b36ad3a..be000cb 100644
--- a/include/configs/s5pc210_universal.h
+++ b/include/configs/s5pc210_universal.h
@@ -262,4 +262,8 @@
#define CONFIG_PMIC_I2C
#define CONFIG_PMIC_MAX8998
+#define CONFIG_USB_GADGET
+#define CONFIG_USB_GADGET_S3C_UDC_OTG
+#define CONFIG_USB_GADGET_DUALSPEED
+
#endif /* __CONFIG_H */
diff --git a/include/max8998_pmic.h b/include/max8998_pmic.h
index bf28820..10c892a 100644
--- a/include/max8998_pmic.h
+++ b/include/max8998_pmic.h
@@ -76,6 +76,7 @@ enum {
#define MAX8998_LDO3 (1 << 2)
#define MAX8998_LDO8 (1 << 5)
+#define MAX8998_SAFEOUT1 (1 << 4)
#define MAX8998_I2C_ADDR (0xCC >> 1)
--
1.7.2.3
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