From: James Yang James.Yang@freescale.com
This patch adds the ability for the FSL DDR interactive debugger to automatically run the sequence of commands stored in the ddr_interactive environment variable. Commands are separated using ';'. For example,
ddr_interactive=compute; edit c0 d0 dimmparms caslat_X 0x3FC0; go
Signed-off-by: James Yang James.Yang@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | 2 +- arch/powerpc/cpu/mpc8xxx/ddr/interactive.c | 37 +++++++++++++++++++++++----- arch/powerpc/cpu/mpc8xxx/ddr/main.c | 8 +++--- 3 files changed, 36 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h index c8b0f91..369eaf7 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h @@ -86,7 +86,7 @@ void fsl_ddr_set_lawbar( unsigned int memctl_interleaved, unsigned int ctrl_num);
-unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo); +unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo, int var_is_set); void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, unsigned int ctrl_num);
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c index e5ee775..1d9ddcc 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c @@ -1430,11 +1430,13 @@ static unsigned int fsl_ddr_parse_interactive_cmd( return error; }
-unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo) +unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo, int var_is_set) { unsigned long long ddrsize; const char *prompt = "FSL DDR>"; char buffer[CONFIG_SYS_CBSIZE]; + char buffer2[CONFIG_SYS_CBSIZE]; + char *p = NULL; char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ int argc; unsigned int next_step = STEP_GET_SPD; @@ -1451,16 +1453,39 @@ unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo) "go program the memory controller and continue with u-boot\n" };
+ if (var_is_set) { + if (getenv_f("ddr_interactive", buffer2, CONFIG_SYS_CBSIZE) > 0) { + p = buffer2; + } else { + var_is_set = 0; + } + } + /* * The strategy for next_step is that it points to the next * step in the computation process that needs to be done. */ while (1) { - /* - * No need to worry for buffer overflow here in - * this function; readline() maxes out at CFG_CBSIZE - */ - readline_into_buffer(prompt, buffer, 0); + if (var_is_set) { + char *pend = strchr(p, ';'); + if (pend) { + /* found commmand separator, copy this command and evaluate it. */ + *pend = '\0'; + strcpy(buffer, p); + p = pend + 1; + } else { + /* separator was not found, so copy the entire string */ + strcpy(buffer, p); + p = NULL; + var_is_set = 0; + } + } else { + /* + * No need to worry for buffer overflow here in + * this function; readline() maxes out at CFG_CBSIZE + */ + readline_into_buffer(prompt, buffer, 0); + } argc = parse_line(buffer, argv); if (argc == 0) continue; diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index a33c9e2..741cd0f 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -532,10 +532,10 @@ phys_size_t fsl_ddr_sdram(void)
/* Compute it once normally. */ #ifdef CONFIG_FSL_DDR_INTERACTIVE - if (getenv("ddr_interactive")) { - total_memory = fsl_ddr_interactive(&info); - } else if (tstc() && (getc() == 'd')) { /* we got a key press of 'd' */ - total_memory = fsl_ddr_interactive(&info); + if (tstc() && (getc() == 'd')) { /* we got a key press of 'd' */ + total_memory = fsl_ddr_interactive(&info, 0); + } else if (getenv_f("ddr_interactive", NULL, 0) > 0) { + total_memory = fsl_ddr_interactive(&info, 1); } else #endif total_memory = fsl_ddr_compute(&info, STEP_GET_SPD, 0);