build/patch/u-boot/v2022.07/board_tinkerboard/0003-UMS-mode-on-otg-port.patch

400 lines
11 KiB
Diff

From 2636bc3f11c953c24b3af7334082811737bf475b Mon Sep 17 00:00:00 2001
From: Paolo Sabatino <paolo.sabatino@gmail.com>
Date: Sat, 19 Mar 2022 21:41:38 +0000
Subject: [PATCH] rk3288: tinkerboard: add UMS mode when USB host is connected
to OTG port during boot
---
arch/arm/include/asm/arch-rockchip/gpio.h | 22 ++++
arch/arm/mach-rockchip/board.c | 115 +++++++++++++++++++++
arch/arm/mach-rockchip/spl.c | 23 ++++-
cmd/usb_mass_storage.c | 9 +-
common/autoboot.c | 22 ++++
common/board_r.c | 1 +
drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c | 1 +
drivers/usb/gadget/f_mass_storage.c | 10 +-
include/init.h | 1 +
include/linux/usb/gadget.h | 3 +
10 files changed, 203 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm/arch-rockchip/gpio.h b/arch/arm/include/asm/arch-rockchip/gpio.h
index 1aaec5fae..135688d3b 100644
--- a/arch/arm/include/asm/arch-rockchip/gpio.h
+++ b/arch/arm/include/asm/arch-rockchip/gpio.h
@@ -24,6 +24,28 @@ struct rockchip_gpio_regs {
};
check_member(rockchip_gpio_regs, ls_sync, 0x60);
+/*
+ * RK3288 IO memory map:
+ *
+ */
+#define RKIO_GPIO0_PHYS 0xFF750000
+#define RKIO_GRF_PHYS 0xFF770000
+#define RKIO_GPIO1_PHYS 0xFF780000
+#define RKIO_GPIO2_PHYS 0xFF790000
+#define RKIO_GPIO3_PHYS 0xFF7A0000
+#define RKIO_GPIO4_PHYS 0xFF7B0000
+#define RKIO_GPIO5_PHYS 0xFF7C0000
+#define RKIO_GPIO6_PHYS 0xFF7D0000
+
+/* gpio power down/up control */
+#define GRF_GPIO2A_P 0x150
+#define GRF_GPIO6A_P 0x190
+
+/* gpio input/output control */
+#define GPIO_SWPORT_DR 0x00
+#define GPIO_SWPORT_DDR 0x04
+#define GPIO_EXT_PORT 0x50
+
enum gpio_pu_pd {
GPIO_PULL_NORMAL = 0,
GPIO_PULL_UP,
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
index ba4da72b3..5ae2c7f8f 100644
--- a/arch/arm/mach-rockchip/board.c
+++ b/arch/arm/mach-rockchip/board.c
@@ -17,10 +17,26 @@
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/periph.h>
#include <asm/arch-rockchip/misc.h>
+#include <asm/arch-rockchip/gpio.h>
+#include <linux/delay.h>
#include <power/regulator.h>
DECLARE_GLOBAL_DATA_PTR;
+enum project_id {
+ TinkerBoardS = 0,
+ TinkerBoard = 7,
+};
+
+enum pcb_id {
+ SR,
+ ER,
+ PR,
+};
+
+extern bool force_ums;
+
+
__weak int rk_board_late_init(void)
{
return 0;
@@ -33,6 +49,105 @@ int board_late_init(void)
return rk_board_late_init();
}
+/*
+*
+* usb current limit : GPIO6_A6 (H:unlock, L:lock)
+*
+*/
+void usb_current_limit_ctrl(bool unlock_current)
+{
+ int tmp;
+
+ printf("%s: unlock_current = %d\n", __func__, unlock_current);
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ if(unlock_current == true)
+ writel(tmp | 0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ else
+ writel(tmp & ~0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+ writel(tmp | 0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+}
+
+/*
+*
+* eMMC maskrom mode : GPIO6_A7 (H:disable maskrom, L:enable maskrom)
+*
+*/
+void rk3288_maskrom_ctrl(bool enable_emmc)
+{
+ int tmp;
+
+ printf("%s: enable_emmc = %d\n", __func__, enable_emmc);
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ if(enable_emmc == true)
+ writel(tmp | 0x80, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ else
+ writel(tmp & ~0x80, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+ writel(tmp | 0x80, RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+ mdelay(10);
+}
+
+/*
+*
+* project id : GPIO2_A3 GPIO2_A2 GPIO2_A1
+* pcb id : GPIO2_B2 GPIO2_B1 GPIO2_B0
+* SDP/CDP : GPIO6_A5 (H:SDP, L:CDP)
+* usb current limit : GPIO6_A6 (H:unlock, L:lock)
+* eMMC maskrom mode : GPIO6_A7 (H:disable maskrom, L:enable maskrom)
+*
+* Please check TRM V1.2 part1 page 152 for the following register settings
+*
+*/
+int check_force_enter_ums_mode(void)
+{
+ int tmp;
+ enum pcb_id pcbid;
+ enum project_id projectid;
+
+ // GPIO2_A3/GPIO2_A2/GPIO2_A1 pull up enable
+ tmp = readl(RKIO_GRF_PHYS + GRF_GPIO2A_P);
+ writel((tmp&~(0x03F<<2)) | 0x3F<<(16 + 2) | 0x15<<2, RKIO_GRF_PHYS + GRF_GPIO2A_P);
+
+ // GPIO2_A3/GPIO2_A2/GPIO2_A1/GPIO2_B2/GPIO2_B1/GPIO2_B0 set to input
+ tmp = readl(RKIO_GPIO2_PHYS + GPIO_SWPORT_DDR);
+ writel(tmp & ~(0x70E), RKIO_GPIO2_PHYS + GPIO_SWPORT_DDR);
+
+ // GPIO6_A5 pull up/down disable
+ tmp = readl(RKIO_GRF_PHYS + GRF_GPIO6A_P);
+ writel((tmp&~(0x03<<10)) | 0x03<<(16 + 10), RKIO_GRF_PHYS + GRF_GPIO6A_P);
+
+ // GPIO6_A5 set to input
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+ writel(tmp & ~(0x20), RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+
+ mdelay(10);
+
+ // read GPIO2_A3/GPIO2_A2/GPIO2_A1 value
+ projectid = (readl(RKIO_GPIO2_PHYS + GPIO_EXT_PORT) & 0x0E) >>1;
+
+ // read GPIO2_B2/GPIO2_B1/GPIO2_B0 value
+ pcbid = (readl(RKIO_GPIO2_PHYS + GPIO_EXT_PORT) & 0x700) >> 8;
+
+ // only Tinker Board S and the PR stage PCB has this function
+ if(projectid!=TinkerBoard && pcbid >= ER){
+ printf("PC event = 0x%x\n", readl(RKIO_GPIO6_PHYS + GPIO_EXT_PORT)&0x20);
+ if((readl(RKIO_GPIO6_PHYS + GPIO_EXT_PORT)&0x20)==0x20) {
+ // SDP detected, enable EMMC and unlock usb current limit
+ printf("usb connected to SDP, force enter ums mode\n");
+ force_ums = true;
+ rk3288_maskrom_ctrl(true);
+ usb_current_limit_ctrl(true);
+ } else {
+ usb_current_limit_ctrl(false);
+ }
+ }
+ return 0;
+}
+
+
int board_init(void)
{
int ret;
diff --git a/arch/arm/mach-rockchip/spl.c b/arch/arm/mach-rockchip/spl.c
index f148d48b6..59daff438 100644
--- a/arch/arm/mach-rockchip/spl.c
+++ b/arch/arm/mach-rockchip/spl.c
@@ -106,6 +106,27 @@ __weak int arch_cpu_init(void)
return 0;
}
+/*
+*
+* usb current limit : GPIO6_A6 (H:unlock, L:lock)
+*
+*/
+void usb_current_limit_ctrl(bool unlock_current)
+{
+ int tmp;
+
+#include <asm/arch/gpio.h>
+
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ if(unlock_current == true)
+ writel(tmp | 0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+ else
+ writel(tmp & ~0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DR);
+
+ tmp = readl(RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+ writel(tmp | 0x40, RKIO_GPIO6_PHYS + GPIO_SWPORT_DDR);
+}
+
void board_init_f(ulong dummy)
{
int ret;
@@ -122,7 +143,7 @@ void board_init_f(ulong dummy)
debug_uart_init();
debug("\nspl:debug uart enabled in %s\n", __func__);
#endif
-
+ usb_current_limit_ctrl(true);
board_early_init_f();
ret = spl_early_init();
diff --git a/cmd/usb_mass_storage.c b/cmd/usb_mass_storage.c
index cf2f55994..d406ea453 100644
--- a/cmd/usb_mass_storage.c
+++ b/cmd/usb_mass_storage.c
@@ -111,7 +111,7 @@ static int ums_init(const char *devtype, const char *devnums_part_str)
name = malloc(UMS_NAME_LEN);
if (!name)
goto cleanup;
- snprintf(name, UMS_NAME_LEN, "UMS disk %d", ums_count);
+ snprintf(name, UMS_NAME_LEN, "Armbian UMS disk %d", ums_count);
ums[ums_count].name = name;
ums[ums_count].block_dev = *block_dev;
@@ -136,7 +136,7 @@ cleanup:
return ret;
}
-static int do_usb_mass_storage(struct cmd_tbl *cmdtp, int flag,
+int do_usb_mass_storage(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
const char *usb_controller;
@@ -218,6 +218,11 @@ static int do_usb_mass_storage(struct cmd_tbl *cmdtp, int flag,
usb_gadget_handle_interrupts(controller_index);
rc = fsg_main_thread(NULL);
+
+ if (rc == -ETIMEDOUT) {
+ goto cleanup_register;
+ }
+
if (rc) {
/* Check I/O error */
if (rc == -EIO)
diff --git a/common/autoboot.c b/common/autoboot.c
index e628baffb..eefaa28d4 100644
--- a/common/autoboot.c
+++ b/common/autoboot.c
@@ -40,6 +40,9 @@ DECLARE_GLOBAL_DATA_PTR;
static int stored_bootdelay;
static int menukey;
+bool force_ums = false;
+bool getdescriptor = false;
+
#if !defined(CONFIG_AUTOBOOT_STOP_STR_CRYPT)
#define CONFIG_AUTOBOOT_STOP_STR_CRYPT ""
#endif
@@ -49,6 +52,10 @@ static int menukey;
#define AUTOBOOT_MENUKEY 0
#endif
+extern int do_usb_mass_storage(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]);
+void usb_current_limit_ctrl(bool unlock_current);
+void rk3288_maskrom_ctrl(bool enable_emmc);
+
/*
* Use a "constant-length" time compare function for this
* hash compare:
@@ -363,6 +370,21 @@ void autoboot_command(const char *s)
{
debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
+ if (force_ums) {
+ // force to enter ums mode
+ char *local_args[4];
+ char str1[]="ums", str2[]="1", str3[]="mmc", str4[]="0";
+
+ local_args[0]=str1;
+ local_args[1]=str2;
+ local_args[2]=str3;
+ local_args[3]=str4;
+ if (do_usb_mass_storage(NULL, 0, 4, local_args) == -ETIMEDOUT) {
+ rk3288_maskrom_ctrl(false);
+ usb_current_limit_ctrl(false);
+ }
+ }
+
if (s && (stored_bootdelay == -2 ||
(stored_bootdelay != -1 && !abortboot(stored_bootdelay)))) {
bool lock;
diff --git a/common/board_r.c b/common/board_r.c
index 29dd7d26d..5b952d00c 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -797,6 +797,7 @@ static init_fnc_t init_sequence_r[] = {
#ifdef CONFIG_MMC
initr_mmc,
#endif
+ check_force_enter_ums_mode,
#ifdef CONFIG_XEN
initr_xen,
#endif
diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
index f17009a29..b85b3f825 100644
--- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
+++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
@@ -1393,6 +1393,7 @@ static void dwc2_ep0_setup(struct dwc2_udc *dev)
debug_cond(DEBUG_SETUP != 0,
"%s: *** USB_REQ_GET_DESCRIPTOR\n",
__func__);
+ getdescriptor = true;
break;
case USB_REQ_SET_INTERFACE:
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 45f0504b6..80706d41b 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -655,7 +655,7 @@ static void busy_indicator(void)
static int sleep_thread(struct fsg_common *common)
{
int rc = 0;
- int i = 0, k = 0;
+ int i = 0, k = 0, j = 0;
/* Wait until a signal arrives or we are woken up */
for (;;) {
@@ -666,6 +666,7 @@ static int sleep_thread(struct fsg_common *common)
busy_indicator();
i = 0;
k++;
+ j++;
}
if (k == 10) {
@@ -680,6 +681,13 @@ static int sleep_thread(struct fsg_common *common)
k = 0;
}
+ if (j == 300) { //about 3 seconds
+ if(force_ums && !getdescriptor) {
+ printf("wait for usb get descriptor cmd timeout\n");
+ return -ETIMEDOUT;
+ }
+ }
+
usb_gadget_handle_interrupts(controller_index);
}
common->thread_wakeup_needed = 0;
diff --git a/include/init.h b/include/init.h
index 0f48ccb57..bae1cb88e 100644
--- a/include/init.h
+++ b/include/init.h
@@ -261,6 +261,7 @@ int board_early_init_f(void);
/* manipulate the U-Boot fdt before its relocation */
int board_fix_fdt(void *rw_fdt_blob);
int board_late_init(void);
+int check_force_enter_ums_mode (void);
int board_postclk_init(void); /* after clocks/timebase, before env/serial */
int board_early_init_r(void);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 06292ddeb..48709f3b0 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -25,6 +25,9 @@
struct usb_ep;
+extern bool force_ums;
+extern bool getdescriptor;
+
/**
* struct usb_request - describes one i/o request
* @buf: Buffer used for data. Always provide this; some controllers
--
2.30.2