summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPriyanka Jain <Priyanka.Jain@freescale.com>2011-02-08 13:13:15 +0530
committerKumar Gala <galak@kernel.crashing.org>2011-04-04 09:24:42 -0500
commit0c871e952e77fe9f3b88d52778d2b5d82da4d884 (patch)
tree9b68a642ac0646d9260a2488abef330597c2d5c1
parentf098c9c880f08c7b090a4c5bcb924eef1663a32e (diff)
downloadu-boot-imx-0c871e952e77fe9f3b88d52778d2b5d82da4d884.zip
u-boot-imx-0c871e952e77fe9f3b88d52778d2b5d82da4d884.tar.gz
u-boot-imx-0c871e952e77fe9f3b88d52778d2b5d82da4d884.tar.bz2
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>
-rw-r--r--board/freescale/p1_p2_rdb/ddr.c15
-rw-r--r--board/freescale/p1_p2_rdb/tlb.c13
-rw-r--r--include/configs/P1_P2_RDB.h8
3 files changed, 19 insertions, 17 deletions
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 @@ phys_size_t fixed_sdram (void)
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 @@ phys_size_t fixed_sdram (void)
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);
diff --git a/board/freescale/p1_p2_rdb/tlb.c b/board/freescale/p1_p2_rdb/tlb.c
index a46b1b5..9b166b2 100644
--- a/board/freescale/p1_p2_rdb/tlb.c
+++ b/board/freescale/p1_p2_rdb/tlb.c
@@ -80,15 +80,10 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 6, BOOKE_PAGESZ_1M, 1),
-#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
- /* *I*G - L2SRAM */
- SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
- 0, 7, BOOKE_PAGESZ_256K, 1),
- SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
- CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
- 0, 8, BOOKE_PAGESZ_256K, 1),
+#if defined(CONFIG_SYS_RAMBOOT)
+ SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 7, BOOKE_PAGESZ_1G, 1)
#endif
};
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h
index a217bcd..53ec56f 100644
--- a/include/configs/P1_P2_RDB.h
+++ b/include/configs/P1_P2_RDB.h
@@ -57,14 +57,14 @@
#ifdef CONFIG_SDCARD
#define CONFIG_RAMBOOT_SDCARD 1
-#define CONFIG_SYS_TEXT_BASE 0xf8f80000
-#define CONFIG_RESET_VECTOR_ADDRESS 0xf8fffffc
+#define CONFIG_SYS_TEXT_BASE 0x11000000
+#define CONFIG_RESET_VECTOR_ADDRESS 0x1107fffc
#endif
#ifdef CONFIG_SPIFLASH
#define CONFIG_RAMBOOT_SPIFLASH 1
-#define CONFIG_SYS_TEXT_BASE 0xf8f80000
-#define CONFIG_RESET_VECTOR_ADDRESS 0xf8fffffc
+#define CONFIG_SYS_TEXT_BASE 0x11000000
+#define CONFIG_RESET_VECTOR_ADDRESS 0x1107fffc
#endif
#ifndef CONFIG_SYS_TEXT_BASE