Implements the dwc3 gadget driver support for LS1043
platform, and performs below operations:
1. Enables snooping support for DWC3 controller.
2. Enables cache coherency in LS1043 platform.
Signed-off-by: Rajat Srivastava <rajat.srivast...@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bha...@nxp.com>
Reviewed-by: Lukasz Majewski <l.majew...@samsung.com>
---
Changes in v3:
- None
Changes in v2:
- Moves DWC3 driver specific code to helper functions
- Calls helper functions in SoC specific implementation
arch/arm/cpu/armv8/fsl-layerscape/soc.c | 93 ++++++++++++++++++++++
.../include/asm/arch-fsl-layerscape/immap_lsch2.h | 6 ++
2 files changed, 99 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index 0fb5c7f..cc07524 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -17,6 +17,10 @@
#ifdef CONFIG_CHAIN_OF_TRUST
#include <fsl_validate.h>
#endif
+#include <usb.h>
+#include <dwc3-uboot.h>
+#include <linux/usb/xhci-fsl.h>
+
DECLARE_GLOBAL_DATA_PTR;
@@ -318,9 +322,18 @@ void fsl_lsch2_early_init_f(void)
#if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT)
out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
#endif
+ /* Make SEC and USB reads and writes snoopable */
+#if defined(CONFIG_LS1043A)
+ setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP |
+ SCFG_SNPCNFGCR_SECWRSNP | SCFG_SNPCNFGCR_USB1RDSNP |
+ SCFG_SNPCNFGCR_USB1WRSNP | SCFG_SNPCNFGCR_USB2RDSNP |
+ SCFG_SNPCNFGCR_USB2WRSNP | SCFG_SNPCNFGCR_USB3RDSNP |
+ SCFG_SNPCNFGCR_USB3WRSNP);
+#else
/* Make SEC reads and writes snoopable */
setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP |
SCFG_SNPCNFGCR_SECWRSNP);
+#endif
/*
* Enable snoop requests and DVM message requests for
@@ -336,6 +349,86 @@ void fsl_lsch2_early_init_f(void)
}
#endif
+#ifdef CONFIG_USB_DWC3
+
+#if defined(CONFIG_LS1043A)
+static struct dwc3_device dwc3_device_data0 = {
+ .maximum_speed = USB_SPEED_HIGH,
+ .base = CONFIG_SYS_FSL_XHCI_USB1_ADDR,
+ .dr_mode = USB_DR_MODE_PERIPHERAL,
+ .index = 0,
+};
+
+static struct dwc3_device dwc3_device_data1 = {
+ .maximum_speed = USB_SPEED_HIGH,
+ .base = CONFIG_SYS_FSL_XHCI_USB2_ADDR,
+ .dr_mode = USB_DR_MODE_PERIPHERAL,
+ .index = 1,
+};
+
+static struct dwc3_device dwc3_device_data2 = {
+ .maximum_speed = USB_SPEED_HIGH,
+ .base = CONFIG_SYS_FSL_XHCI_USB3_ADDR,
+ .dr_mode = USB_DR_MODE_PERIPHERAL,
+ .index = 2,
+};
+
+int usb_gadget_handle_interrupts(int index)
+{
+ dwc3_uboot_handle_interrupt(index);
+ return 0;
+}
+#endif
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+ switch (init) {
+ case USB_INIT_DEVICE:
+ switch (index) {
+#if defined(CONFIG_LS1043A)
+ case 0:
+ dwc3_uboot_init(&dwc3_device_data0);
+ break;
+ case 1:
+ dwc3_uboot_init(&dwc3_device_data1);
+ break;
+ case 2:
+ dwc3_uboot_init(&dwc3_device_data2);
+ break;
+#endif
+ default:
+ printf("Invalid Controller Index\n");
+ return -1;
+ }
+#if defined(CONFIG_LS1043A)
+ dwc3_core_incr_burst_enable(index, 0xf, 0xf);
+ dwc3_core_set_snooping(index, true);
+#endif
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+ switch (init) {
+ case USB_INIT_DEVICE:
+#if defined(CONFIG_LS1043A)
+ dwc3_uboot_exit(index);
+#endif
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+#endif
+
+
+
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index 57b99d4..13ba1a6 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -328,6 +328,12 @@ struct ccsr_gur {
#define SCFG_SNPCNFGCR_SECRDSNP 0x80000000
#define SCFG_SNPCNFGCR_SECWRSNP 0x40000000
+#define SCFG_SNPCNFGCR_USB1RDSNP 0x00200000
+#define SCFG_SNPCNFGCR_USB1WRSNP 0x00100000
+#define SCFG_SNPCNFGCR_USB2RDSNP 0x00008000
+#define SCFG_SNPCNFGCR_USB2WRSNP 0x00010000
+#define SCFG_SNPCNFGCR_USB3RDSNP 0x00002000
+#define SCFG_SNPCNFGCR_USB3WRSNP 0x00004000
/* Supplemental Configuration Unit */
struct ccsr_scfg {
--
2.6.2.198.g614a2ac
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