diff options
Diffstat (limited to 'board/a3m071/a3m071.c')
| -rw-r--r-- | board/a3m071/a3m071.c | 147 |
1 files changed, 139 insertions, 8 deletions
diff --git a/board/a3m071/a3m071.c b/board/a3m071/a3m071.c index 89ced824eb..0f9f883e90 100644 --- a/board/a3m071/a3m071.c +++ b/board/a3m071/a3m071.c @@ -24,10 +24,15 @@ #include <mpc5xxx.h> #include <pci.h> #include <miiphy.h> +#include <linux/compiler.h> #include <asm/processor.h> #include <asm/io.h> +#ifdef CONFIG_A4M2K +#include "is46r16320d.h" +#else #include "mt46v16m16-75.h" +#endif DECLARE_GLOBAL_DATA_PTR; @@ -63,6 +68,12 @@ static void sdram_start(int hi_addr) /* normal operation */ out_be32((void *)MPC5XXX_SDRAM_CTRL, control); + + /* + * Wait a short while for the DLL to lock before accessing + * the SDRAM + */ + udelay(100); } #endif @@ -157,12 +168,6 @@ static void get_revisions(int *failsavelevel, int *digiboardversion, struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT; u8 val; - /* - * Figure out failsavelevel - * see ticket dsvk#59 - */ - *failsavelevel = 0; /* 0=failsave, 1=board ok, 2=fpga ok */ - /* read digitalboard-version from TMR[2..4] */ val = 0; val |= (gpt->gpt2.sr & (1 << (31 - 23))) ? (1) : 0; @@ -170,6 +175,17 @@ static void get_revisions(int *failsavelevel, int *digiboardversion, val |= (gpt->gpt4.sr & (1 << (31 - 23))) ? (1 << 2) : 0; *digiboardversion = val; + /* + * A4M2K only supports digiboardversion. No failsavelevel and + * fpgaversion here. + */ +#if !defined(CONFIG_A4M2K) + /* + * Figure out failsavelevel + * see ticket dsvk#59 + */ + *failsavelevel = 0; /* 0=failsave, 1=board ok, 2=fpga ok */ + if (*digiboardversion == 0) { *failsavelevel = 1; /* digiboard-version ok */ @@ -183,6 +199,7 @@ static void get_revisions(int *failsavelevel, int *digiboardversion, if (*fpgaversion == 1) *failsavelevel = 2; /* fpga-version ok */ } +#endif } /* @@ -196,6 +213,11 @@ void spl_board_init(void) struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO; struct mpc5xxx_mmap_ctl *mm = (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR; + +#if defined(CONFIG_A4M2K) + /* enable CS3 and CS5 (FPGA) */ + setbits_be32(&mm->ipbi_ws_ctrl, (1 << 19) | (1 << 21)); +#else int digiboardversion; int failsavelevel; int fpgaversion; @@ -219,6 +241,7 @@ void spl_board_init(void) /* And write new value back to register */ out_be32(&mm->ipbi_ws_ctrl, val); +#endif /* * No need to change the pin multiplexing (MPC5XXX_GPS_PORT_CONFIG) @@ -232,8 +255,57 @@ void spl_board_init(void) * MPC5XXX_WU_GPIO_DIR direction is already 0 (INPUT) * set bit 0(msb) to 1 */ - setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, 1 << (31 - 0)); + setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, CONFIG_WDOG_GPIO_PIN); + +#if defined(CONFIG_A4M2K) + /* Setup USB[x] as MPCDiag[0..3] GPIO outputs */ + + /* set USB0,6,7,8 (MPCDiag[0..3]) direction to output */ + gpio->simple_ddr |= 1 << (31 - 15); + gpio->simple_ddr |= 1 << (31 - 14); + gpio->simple_ddr |= 1 << (31 - 13); + gpio->simple_ddr |= 1 << (31 - 12); + + /* enable USB0,6,7,8 (MPCDiag[0..3]) as GPIO */ + gpio->simple_gpioe |= 1 << (31 - 15); + gpio->simple_gpioe |= 1 << (31 - 14); + gpio->simple_gpioe |= 1 << (31 - 13); + gpio->simple_gpioe |= 1 << (31 - 12); + + /* Setup PSC2[0..2] as STSLED[0..2] GPIO outputs */ + + /* set PSC2[0..2] (STSLED[0..2]) direction to output */ + gpio->simple_ddr |= 1 << (31 - 27); + gpio->simple_ddr |= 1 << (31 - 26); + gpio->simple_ddr |= 1 << (31 - 25); + + /* enable PSC2[0..2] (STSLED[0..2]) as GPIO */ + gpio->simple_gpioe |= 1 << (31 - 27); + gpio->simple_gpioe |= 1 << (31 - 26); + gpio->simple_gpioe |= 1 << (31 - 25); + + /* Setup PSC6[2] as MRST2 self reset GPIO output */ + + /* set PSC6[2]/IRDA_TX (MRST2) direction to output */ + gpio->simple_ddr |= 1 << (31 - 3); + + /* set PSC6[2]/IRDA_TX (MRST2) output as open drain */ + gpio->simple_ode |= 1 << (31 - 3); + /* set PSC6[2]/IRDA_TX (MRST2) output as default high */ + gpio->simple_dvo |= 1 << (31 - 3); + + /* enable PSC6[2]/IRDA_TX (MRST2) as GPIO */ + gpio->simple_gpioe |= 1 << (31 - 3); + + /* Setup PSC6[3] as HARNSSCD harness code GPIO input */ + + /* set PSC6[3]/IR_USB_CLK (HARNSSCD) direction to input */ + gpio->simple_ddr |= 0 << (31 - 2); + + /* enable PSC6[3]/IR_USB_CLK (HARNSSCD) as GPIO */ + gpio->simple_gpioe |= 1 << (31 - 2); +#else /* setup GPIOs for status-leds if needed - see ticket #57 */ if (failsavelevel > 0) { /* digiboard-version is OK */ @@ -267,7 +339,7 @@ void spl_board_init(void) * already cleared (intr_ctrl) MBAR+0x0510 ECLR[0] bit above */ } - +#endif } int checkboard(void) @@ -278,11 +350,16 @@ int checkboard(void) get_revisions(&failsavelevel, &digiboardversion, &fpgaversion); +#ifdef CONFIG_A4M2K + puts("Board: A4M2K\n"); + printf(" digiboard IO version %u\n", digiboardversion); +#else puts("Board: A3M071\n"); printf("Rev: failsave level %u\n", failsavelevel); printf(" digiboard IO version %u\n", digiboardversion); if (failsavelevel > 0) /* only if fpga-version red */ printf(" fpga IO version %u\n", fpgaversion); +#endif return 0; } @@ -333,3 +410,57 @@ int spl_start_uboot(void) return 1; } #endif + +#if defined(CONFIG_HW_WATCHDOG) +static int watchdog_toggle; + +void hw_watchdog_reset(void) +{ + int val; + + /* + * Check if watchdog is enabled via user command + */ + if ((gd->flags & GD_FLG_RELOC) && watchdog_toggle) { + /* Set direction to output */ + setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, CONFIG_WDOG_GPIO_PIN); + + /* + * Toggle watchdog output + */ + val = (in_be32((void *)MPC5XXX_WU_GPIO_DATA_O) & + CONFIG_WDOG_GPIO_PIN); + if (val) { + clrbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, + CONFIG_WDOG_GPIO_PIN); + } else { + setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, + CONFIG_WDOG_GPIO_PIN); + } + } +} + +int do_wdog_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + if (argc != 2) + goto usage; + + if (strncmp(argv[1], "on", 2) == 0) + watchdog_toggle = 1; + else if (strncmp(argv[1], "off", 3) == 0) + watchdog_toggle = 0; + else + goto usage; + + return 0; +usage: + printf("Usage: wdogtoggle %s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD( + wdogtoggle, CONFIG_SYS_MAXARGS, 2, do_wdog_toggle, + "toggle GPIO pin to service watchdog", + "[on/off] - Switch watchdog toggling via GPIO pin on/off" +); +#endif |