sun6i: ehci: Add sun6i ehci support
Add support for the 2 ehci controllers found on the sun6i (A31) soc.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c
index 193ac43..cc9a8fa 100644
--- a/drivers/usb/host/ehci-sunxi.c
+++ b/drivers/usb/host/ehci-sunxi.c
@@ -10,16 +10,14 @@
*/
#include <asm/arch/clock.h>
+#include <asm/arch/cpu.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <common.h>
#include "ehci.h"
-#define SUNXI_USB1_IO_BASE 0x01c14000
-#define SUNXI_USB2_IO_BASE 0x01c1c000
-
#define SUNXI_USB_PMU_IRQ_ENABLE 0x800
-#define SUNXI_USB_CSR 0x01c13404
+#define SUNXI_USB_CSR 0x404
#define SUNXI_USB_PASSBY_EN 1
#define SUNXI_EHCI_AHB_ICHR8_EN (1 << 10)
@@ -32,23 +30,28 @@
int usb_rst_mask;
int ahb_clk_mask;
int gpio_vbus;
- void *csr;
int irq;
int id;
} sunxi_echi_hcd[] = {
{
- .usb_rst_mask = CCM_USB_CTRL_PHY1_RST,
+ .usb_rst_mask = CCM_USB_CTRL_PHY1_RST | CCM_USB_CTRL_PHY1_CLK,
.ahb_clk_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0,
- .csr = (void *)SUNXI_USB_CSR,
+#ifndef CONFIG_MACH_SUN6I
.irq = 39,
+#else
+ .irq = 72,
+#endif
.id = 1,
},
#if (CONFIG_USB_MAX_CONTROLLER_COUNT > 1)
{
- .usb_rst_mask = CCM_USB_CTRL_PHY2_RST,
+ .usb_rst_mask = CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK,
.ahb_clk_mask = 1 << AHB_GATE_OFFSET_USB_EHCI1,
- .csr = (void *)SUNXI_USB_CSR,
+#ifndef CONFIG_MACH_SUN6I
.irq = 40,
+#else
+ .irq = 74,
+#endif
.id = 2,
}
#endif
@@ -58,12 +61,16 @@
static void *get_io_base(int hcd_id)
{
- if (hcd_id == 1)
- return (void *)SUNXI_USB1_IO_BASE;
- else if (hcd_id == 2)
- return (void *)SUNXI_USB2_IO_BASE;
- else
+ switch (hcd_id) {
+ case 0:
+ return (void *)SUNXI_USB0_BASE;
+ case 1:
+ return (void *)SUNXI_USB1_BASE;
+ case 2:
+ return (void *)SUNXI_USB2_BASE;
+ default:
return NULL;
+ }
}
static int get_vbus_gpio(int hcd_id)
@@ -79,7 +86,7 @@
int data, int len)
{
int j = 0, usbc_bit = 0;
- void *dest = sunxi_ehci->csr;
+ void *dest = get_io_base(0) + SUNXI_USB_CSR;
usbc_bit = 1 << (sunxi_ehci->id * 2);
for (j = 0; j < len; j++) {
@@ -112,7 +119,7 @@
usb_phy_write(sunxi_ehci, 0x20, 0x14, 5);
/* threshold adjustment disconnect */
-#ifdef CONFIG_MACH_SUN4I
+#if defined CONFIG_MACH_SUN4I || defined CONFIG_MACH_SUN6I
usb_phy_write(sunxi_ehci, 0x2a, 3, 2);
#else
usb_phy_write(sunxi_ehci, 0x2a, 2, 2);
@@ -145,6 +152,9 @@
setbits_le32(&ccm->usb_clk_cfg, sunxi_ehci->usb_rst_mask);
setbits_le32(&ccm->ahb_gate0, sunxi_ehci->ahb_clk_mask);
+#ifdef CONFIG_MACH_SUN6I
+ setbits_le32(&ccm->ahb_reset0_cfg, sunxi_ehci->ahb_clk_mask);
+#endif
sunxi_usb_phy_init(sunxi_ehci);
@@ -163,6 +173,9 @@
sunxi_usb_passby(sunxi_ehci, !SUNXI_USB_PASSBY_EN);
+#ifdef CONFIG_MACH_SUN6I
+ clrbits_le32(&ccm->ahb_reset0_cfg, sunxi_ehci->ahb_clk_mask);
+#endif
clrbits_le32(&ccm->ahb_gate0, sunxi_ehci->ahb_clk_mask);
clrbits_le32(&ccm->usb_clk_cfg, sunxi_ehci->usb_rst_mask);
}