diff options
Diffstat (limited to 'drivers/usb/musb/rda.c')
| -rw-r--r-- | drivers/usb/musb/rda.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/drivers/usb/musb/rda.c b/drivers/usb/musb/rda.c new file mode 100644 index 0000000000..db2dbf52af --- /dev/null +++ b/drivers/usb/musb/rda.c @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * + * This is file is based on + * repository git.gitorious.org/u-boot-omap3/mainline.git, + * branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c + * + * This is the unique part of its copyright : + * + * ------------------------------------------------------------------------ + * + * Copyright (c) 2009 Texas Instruments + * + * ------------------------------------------------------------------------ + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> +#include "rda.h" +#include <asm/arch/reg_sysctrl.h> +#include <asm/arch/hwcfg.h> +#include <asm/arch/rda_sys.h> +#include "musb_core.h" + +#define MONITOR_REG (MUSB_BASE + 0x80) +#define MONITOR_TRIG_REG (MUSB_BASE + 0x84) +#define UDC_PHY_CLK_REG (MUSB_BASE + 0x8c) + +struct musb_config musb_cfg = { + .regs = (struct musb_regs *)MUSB_BASE, + .timeout = RDA_FPGA_USB_TIMEOUT, + .musb_speed = 0, +}; + +static void udc_soft_reset(void) +{ + serial_printf("reset musb otg core...\n"); + hwp_sysCtrlAp->AHB1_Rst_Set = SYS_CTRL_AP_SET_AHB1_RST_USBC; + udelay(1000); + hwp_sysCtrlAp->AHB1_Rst_Clr = SYS_CTRL_AP_CLR_AHB1_RST_USBC; +} +/* +static void set_udc_monitor(int testcase) +{ + u32 value; + + serial_printf("monitor trigger offset :%x \n", MONITOR_TRIG_REG); + value = 0x100 | (testcase & 0xff); + serial_printf("monitor trigger value :%x \n", value); + writel(value, MONITOR_TRIG_REG); + + serial_printf("monitor offset :%x, result : %x\n", MONITOR_REG, readl(MONITOR_REG)); +} +*/ +void udc_power_on(void) +{ +} + +void udc_power_off(void) +{ +} + +/* + udc maybe initialized by other module,always by ROM code + */ +int udc_is_initialized(void) +{ + /* some hacks for 8850E U02 USB issue, remove them in future. */ +#if defined(CONFIG_MACH_RDA8850E) + /* pdl1 always do hardware usb init */ +#if defined(CONFIG_SPL_BUILD) && \ + defined(CONFIG_RDA_PDL) + return 0; +#endif + /* u-boot calib/autocall/pdl2 mode, need to do hardware usb init */ +#ifndef CONFIG_RDA_PDL + return 0; +#endif +#endif + + return rda_bm_is_download(); +} + +static void udc_setup_pll(void) +{ + unsigned mask; + unsigned locked; + int cnt = 10; //timeout is in ms; + + hwp_sysCtrlAp->Cfg_Pll_Ctrl[3] = + SYS_CTRL_AP_AP_PLL_ENABLE_ENABLE | + SYS_CTRL_AP_AP_PLL_LOCK_RESET_NO_RESET | + SYS_CTRL_AP_AP_PLL_LOCK_NUM_LOW(6) + | SYS_CTRL_AP_AP_PLL_LOCK_NUM_HIGH(30); + + mask = SYS_CTRL_AP_PLL_LOCKED_USB_MASK; + + locked = SYS_CTRL_AP_PLL_LOCKED_USB_LOCKED; + + while (((hwp_sysCtrlAp->Sel_Clock & mask) != locked) && cnt) { + mdelay(1); + cnt--; + } + if (cnt == 0) + printf("ERROR, cannot lock usb pll\n"); +} + +static void musb_phy_init(void) +{ + udc_setup_pll(); + /* + if (rda_metal_id_get() == 0) { + writel(0xf001, UDC_PHY_CLK_REG); + } else if (rda_metal_id_get() == 1) { + writel(0x5900f000, UDC_PHY_CLK_REG); + } + */ +} + +int musb_platform_init(void) +{ + udc_soft_reset(); + musb_phy_init(); + + return 0; +} + +void musb_platform_deinit(void) +{ + /* noop */ +} + +void print_reg(void) +{ + u8 power; + u8 testmode; + u8 devctl; + musbr = musb_cfg.regs; + power = readb(&musbr->power); + testmode = readb(&musbr->testmode); + devctl = readb(&musbr->devctl); + printf("usb power: %x \n",power); + printf("usb testmode: %x \n",testmode); + printf("usb devctl: %x \n",devctl); +} + +int do_usb_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + u8 devctl; + u8 test; + if (argc < 2 || argc > 3) + return CMD_RET_USAGE; + if (argc == 2) { + if (strcmp(argv[1],"init") == 0) { + musbr = musb_cfg.regs; + musb_platform_init(); + musb_start(); + devctl = readb(&musbr->devctl); + devctl |= MUSB_DEVCTL_SESSION; + writeb(devctl,&musbr->devctl); + printf("usb init finish\n");; + } else if (strcmp(argv[1],"j") == 0) { + test = readb(&musbr->testmode); + test &= ~(MUSB_TEST_K | MUSB_TEST_J); + test |= MUSB_TEST_J; + writeb(test,&musbr->testmode); + printf("usb test_j finish\n"); + } else if (strcmp(argv[1],"k") == 0) { + test = readb(&musbr->testmode); + test &= ~(MUSB_TEST_K | MUSB_TEST_J); + test |= MUSB_TEST_K; + writeb(test,&musbr->testmode); + printf("usb test_k finish\n"); + } else if (strcmp(argv[1],"host") == 0) { + writeb(MUSB_POWER_HSENAB,&musbr->power); + test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS; + writeb(test,&musbr->testmode); + printf("usb force host finish\n"); + } else { + printf("error argument!\n"); + return CMD_RET_USAGE; + } +#ifdef USB_TEST_DEBUG + print_reg(); +#endif + } + return 0; +} + +U_BOOT_CMD( + usb_test, 2, 1, do_usb_test, + "rda usb slave test", + "[init, j, k, host]\n" + " -init: USB INIT\n" + " -j: TEST_J\n" + " -k: TEST_k\n" + " -host: FORCE_HOST\n" +); |