powerpc/85xx: Use DDR for RAMBOOT instead of L2 SRAM on p1_p2_rdb
Using DDR as RAMBOOT base instead of L2SRAM for SDCard and SPI Flash
boot loaders because:
- P1_P2_RDB boards have soldered DDR so no need for SPD
- Also P102x has 256K L2 cache size so becomes a limiting factor for
size of image that could be loaded in SRAM mode and would require three
stage boot loader (TPL).
Changes done:
1. CONFIG_SYS_TEXT_BASE to 0x11000000
2. CONFIG_RESET_VECTOR_ADDRESS to 0x1107fffc
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Poonam Aggrwal <Poonam.Aggrwal@freescale.com>
Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/p1_p2_rdb/ddr.c b/board/freescale/p1_p2_rdb/ddr.c
index 44faec3..853044e 100644
--- a/board/freescale/p1_p2_rdb/ddr.c
+++ b/board/freescale/p1_p2_rdb/ddr.c
@@ -202,6 +202,17 @@
struct cpu_type *cpu;
ulong ddr_freq, ddr_freq_mhz;
+ cpu = gd->cpu;
+ /* P1020 and it's derivatives support max 32bit DDR width */
+ if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1020_E ||
+ cpu->soc_ver == SVR_P1011 || cpu->soc_ver == SVR_P1011_E) {
+ ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2);
+ } else {
+ ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+ }
+#if defined(CONFIG_SYS_RAMBOOT)
+ return ddr_size;
+#endif
ddr_freq = get_ddr_freq(0);
ddr_freq_mhz = ddr_freq / 1000000;
@@ -220,16 +231,12 @@
panic("Unsupported DDR data rate %s MT/s data rate\n",
strmhz(buf, ddr_freq));
- cpu = gd->cpu;
/* P1020 and it's derivatives support max 32bit DDR width */
if(cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1020_E ||
cpu->soc_ver == SVR_P1011 || cpu->soc_ver == SVR_P1011_E) {
ddr_cfg_regs.ddr_sdram_cfg |= SDRAM_CFG_32_BE;
ddr_cfg_regs.cs[0].bnds = 0x0000001F;
- ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2);
}
- else
- ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0);