[U-Boot] [PATCH 6/6] B4860QDS: Add support of 2 stage NAND boot loader
Prabhakar Kushwaha
prabhakar at freescale.com
Fri Feb 28 09:50:31 CET 2014
Add support of 2 stage NAND boot loader using SPL framework.
here, PBL initialise the internal SRAM and copy SPL(96K). This further
initialise DDR using SPD and environment and copy u-boot(512 kb) from NAND to DDR.
Finally SPL transer control to u-boot.
Initialise/create followings required for SPL framework
- Add spl.c which defines board_init_f, board_init_r
- update tlb and ddr accordingly
Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
---
board/freescale/b4860qds/Makefile | 9 ++-
board/freescale/b4860qds/ddr.c | 6 +-
board/freescale/b4860qds/spl.c | 115 +++++++++++++++++++++++++++++++++++++
board/freescale/b4860qds/tlb.c | 10 ++++
boards.cfg | 2 +-
doc/README.b4860qds | 33 +++++++++++
include/configs/B4860QDS.h | 61 ++++++++++++++++++--
7 files changed, 227 insertions(+), 9 deletions(-)
create mode 100644 board/freescale/b4860qds/spl.c
diff --git a/board/freescale/b4860qds/Makefile b/board/freescale/b4860qds/Makefile
index e5cc054..0acd2a9 100644
--- a/board/freescale/b4860qds/Makefile
+++ b/board/freescale/b4860qds/Makefile
@@ -4,9 +4,14 @@
# SPDX-License-Identifier: GPL-2.0+
#
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o
+else
obj-y += b4860qds.o
-obj-y += ddr.o
obj-$(CONFIG_B4860QDS)+= eth_b4860qds.o
-obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_PCI) += pci.o
+endif
+
+obj-y += ddr.o
obj-y += law.o
obj-y += tlb.o
diff --git a/board/freescale/b4860qds/ddr.c b/board/freescale/b4860qds/ddr.c
index 187c3b3..c3cd5ce 100644
--- a/board/freescale/b4860qds/ddr.c
+++ b/board/freescale/b4860qds/ddr.c
@@ -181,12 +181,16 @@ phys_size_t initdram(int board_type)
puts("Initializing....using SPD\n");
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_RAMBOOT_PBL)
dram_size = fsl_ddr_sdram();
dram_size = setup_ddr_tlbs(dram_size / 0x100000);
dram_size *= 0x100000;
- puts(" DDR: ");
+#else
+ puts("DDR has been initialised by First stage boot loader\n");
+ dram_size = 0x80000000;
+#endif
return dram_size;
}
diff --git a/board/freescale/b4860qds/spl.c b/board/freescale/b4860qds/spl.c
new file mode 100644
index 0000000..d56cd30
--- /dev/null
+++ b/board/freescale/b4860qds/spl.c
@@ -0,0 +1,115 @@
+/* Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/spl.h>
+#include <malloc.h>
+#include <ns16550.h>
+#include <nand.h>
+#include <i2c.h>
+#include "../common/qixis.h"
+#include "b4860qds_qixis.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+phys_size_t get_effective_memsize(void)
+{
+ return CONFIG_SYS_L3_SIZE;
+}
+
+unsigned long get_board_sys_clk(void)
+{
+ u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
+
+ switch ((sysclk_conf & 0x0C) >> 2) {
+ case QIXIS_CLK_100:
+ return 100000000;
+ case QIXIS_CLK_125:
+ return 125000000;
+ case QIXIS_CLK_133:
+ return 133333333;
+ }
+ return 66666666;
+}
+
+unsigned long get_board_ddr_clk(void)
+{
+ u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
+
+ switch (ddrclk_conf & 0x03) {
+ case QIXIS_CLK_100:
+ return 100000000;
+ case QIXIS_CLK_125:
+ return 125000000;
+ case QIXIS_CLK_133:
+ return 133333333;
+ }
+ return 66666666;
+}
+
+void board_init_f(ulong bootflag)
+{
+ u32 plat_ratio, sys_clk, uart_clk;
+ ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+ /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
+ memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
+
+ /* Update GD pointer */
+ gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
+ __asm__ __volatile__("" : : : "memory");
+
+ console_init_f();
+
+ /* initialize selected port with appropriate baud rate */
+ sys_clk = get_board_sys_clk();
+ plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
+ uart_clk = sys_clk * plat_ratio / 2;
+
+ NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+ uart_clk / 16 / CONFIG_BAUDRATE);
+
+ relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+ bd_t *bd;
+
+ bd = (bd_t *)(gd + sizeof(gd_t));
+ memset(bd, 0, sizeof(bd_t));
+ gd->bd = bd;
+ bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
+ bd->bi_memsize = CONFIG_SYS_L3_SIZE;
+
+ probecpu();
+ get_clocks();
+ mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
+ CONFIG_SPL_RELOC_MALLOC_SIZE);
+
+#ifndef CONFIG_SPL_NAND_BOOT
+ env_init();
+#endif
+
+ /* relocate environment function pointers etc. */
+#ifdef CONFIG_SPL_NAND_BOOT
+ nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+ (uchar *)CONFIG_ENV_ADDR);
+ gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
+ gd->env_valid = 1;
+#else
+ env_relocate();
+#endif
+
+ i2c_init_all();
+
+ puts("\n\n");
+
+ gd->ram_size = initdram(0);
+
+#ifdef CONFIG_SPL_NAND_BOOT
+ nand_boot();
+#endif
+}
diff --git a/board/freescale/b4860qds/tlb.c b/board/freescale/b4860qds/tlb.c
index 00798a1..7b55b86 100644
--- a/board/freescale/b4860qds/tlb.c
+++ b/board/freescale/b4860qds/tlb.c
@@ -62,6 +62,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
0, 2, BOOKE_PAGESZ_256M, 1),
+#ifndef CONFIG_SPL_BUILD
/* *I*G* - PCI */
SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
@@ -96,6 +97,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 9, BOOKE_PAGESZ_16M, 1),
#endif
+#endif
#ifdef CONFIG_SYS_DCSRBAR_PHYS
SET_TLB_ENTRY(1, CONFIG_SYS_DCSRBAR, CONFIG_SYS_DCSRBAR_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
@@ -118,6 +120,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
* entry 14 and 15 has been used hard coded, they will be disabled
* in cpu_init_f, so we use entry 16 for SRIO2.
*/
+#ifndef CONFIG_SPL_BUILD
#ifdef CONFIG_SYS_SRIO1_MEM_PHYS
/* *I*G* - SRIO1 */
SET_TLB_ENTRY(1, CONFIG_SYS_SRIO1_MEM_VIRT, CONFIG_SYS_SRIO1_MEM_PHYS,
@@ -140,6 +143,13 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
0, 17, BOOKE_PAGESZ_1M, 1),
#endif
+#endif
+
+#if defined(CONFIG_RAMBOOT_PBL) && !defined(CONFIG_SPL_BUILD)
+ SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 17, BOOKE_PAGESZ_2G, 1)
+#endif
};
int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/boards.cfg b/boards.cfg
index d28e09b..d23f3b1 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -782,7 +782,7 @@ Active powerpc mpc85xx - freescale b4860qds
Active powerpc mpc85xx - freescale b4860qds B4420QDS_NAND B4860QDS:PPC_B4420,RAMBOOT_PBL,NAND,SYS_TEXT_BASE=0xFFF40000 -
Active powerpc mpc85xx - freescale b4860qds B4420QDS_SPIFLASH B4860QDS:PPC_B4420,RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF40000 -
Active powerpc mpc85xx - freescale b4860qds B4860QDS B4860QDS:PPC_B4860 -
-Active powerpc mpc85xx - freescale b4860qds B4860QDS_NAND B4860QDS:PPC_B4860,RAMBOOT_PBL,NAND,SYS_TEXT_BASE=0xFFF40000 -
+Active powerpc mpc85xx - freescale b4860qds B4860QDS_NAND B4860QDS:PPC_B4860,RAMBOOT_PBL,RAMBOOT_SPLPBL,NAND
Active powerpc mpc85xx - freescale b4860qds B4860QDS_SPIFLASH B4860QDS:PPC_B4860,RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF40000 -
Active powerpc mpc85xx - freescale b4860qds B4860QDS_SRIO_PCIE_BOOT B4860QDS:PPC_B4860,SRIO_PCIE_BOOT_SLAVE,SYS_TEXT_BASE=0xFFF40000 -
Active powerpc mpc85xx - freescale bsc9131rdb BSC9131RDB_NAND BSC9131RDB:BSC9131RDB,NAND Poonam Aggrwal <poonam.aggrwal at freescale.com>
diff --git a/doc/README.b4860qds b/doc/README.b4860qds
index 3da77d9..bfdce7d 100644
--- a/doc/README.b4860qds
+++ b/doc/README.b4860qds
@@ -328,3 +328,36 @@ The below commands apply to both B4860QDS and B4420QDS.
On Linux the interfaces are renamed as:
. eth2 -> fm1-gb2
. eth3 -> fm1-gb3
+
+NAND boot with 2 Stage boot loader
+----------------------------------
+PBL initialise the internal SRAM and copy SPL(192K) in SRAM.
+SPL further initialise DDR using SPD and environment variables and copy
+u-boot(768 KB) from flash to DDR.
+Finally SPL transer control to u-boot for futher booting.
+
+SPL has following features:
+ - Executes within 256K
+ - No relocation required
+
+ Run time view of SPL framework :-
+ -----------------------------------------------
+ Area | Address |
+ -----------------------------------------------
+ GD, BD | 0xFFFC0000 |
+ -----------------------------------------------
+ ENV | 0xFFFC1000 |
+ -----------------------------------------------
+ HEAP | 0xFFFC2800 |
+ -----------------------------------------------
+ STACK | 0xFFFD0000 |
+ -----------------------------------------------
+ U-boot SPL | 0xfffD0000 - 0xfffffffc (192K) |
+ -----------------------------------------------
+
+NAND Flash memory Map on B4860 and B4420QDS
+------------------------------------------
+ Start End Definition Size
+0x000000 0x0FFFFF u-boot 1MB
+0x140000 0x15FFFF u-boot env 128KB
+0x160000 0x17FFFF FMAN Ucode 128KB
diff --git a/include/configs/B4860QDS.h b/include/configs/B4860QDS.h
index 64acc88..085f6fb 100644
--- a/include/configs/B4860QDS.h
+++ b/include/configs/B4860QDS.h
@@ -14,10 +14,44 @@
#define CONFIG_PHYS_64BIT
#ifdef CONFIG_RAMBOOT_PBL
+#ifndef CONFIG_NAND
#define CONFIG_RAMBOOT_TEXT_BASE CONFIG_SYS_TEXT_BASE
#define CONFIG_RESET_VECTOR_ADDRESS 0xfffffffc
+#else
#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/b4860qds/b4_pbi.cfg
#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/b4860qds/b4_rcw.cfg
+#define CONFIG_SPL
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_TARGET "u-boot-with-spl.bin"
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
+#define CONFIG_FSL_LAW /* Use common FSL init code */
+#define CONFIG_SYS_TEXT_BASE 0x00201000
+#define CONFIG_SPL_TEXT_BASE 0xFFFD0000
+#define CONFIG_SPL_PAD_TO 0x40000
+#define CONFIG_SPL_MAX_SIZE 0x30000
+#define RESET_VECTOR_OFFSET 0x2FFFC
+#define BOOT_PAGE_OFFSET 0x2F000
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SYS_NAND_U_BOOT_SIZE (768 << 10)
+#define CONFIG_SYS_NAND_U_BOOT_DST 0x00200000
+#define CONFIG_SYS_NAND_U_BOOT_START 0x00200000
+#define CONFIG_SYS_NAND_U_BOOT_OFFS (256 << 10)
+#define CONFIG_SYS_LDSCRIPT "arch/powerpc/cpu/mpc85xx/u-boot-nand.lds"
+#define CONFIG_SPL_NAND_BOOT
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SPL_SKIP_RELOCATE
+#define CONFIG_SPL_COMMON_INIT_DDR
+#define CONFIG_SYS_CCSR_DO_NOT_RELOCATE
+#define CONFIG_SYS_NO_FLASH
+#endif
+#define CONFIG_RAMBOOT_TEXT_BASE 0xFFFE0000
+#endif
#endif
#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
@@ -113,8 +147,8 @@
#elif defined(CONFIG_NAND)
#define CONFIG_SYS_EXTRA_ENV_RELOC
#define CONFIG_ENV_IS_IN_NAND
-#define CONFIG_ENV_SIZE CONFIG_SYS_NAND_BLOCK_SIZE
-#define CONFIG_ENV_OFFSET (7 * CONFIG_SYS_NAND_BLOCK_SIZE)
+#define CONFIG_ENV_SIZE 0x2000
+#define CONFIG_ENV_OFFSET (10 * CONFIG_SYS_NAND_BLOCK_SIZE)
#elif defined(CONFIG_SRIO_PCIE_BOOT_SLAVE)
#define CONFIG_ENV_IS_IN_REMOTE
#define CONFIG_ENV_ADDR 0xffe20000
@@ -164,7 +198,16 @@ unsigned long get_board_ddr_clk(void);
/*
* Config the L3 Cache as L3 SRAM
*/
-#define CONFIG_SYS_INIT_L3_ADDR CONFIG_RAMBOOT_TEXT_BASE
+#define CONFIG_SYS_INIT_L3_ADDR 0xFFFC0000
+#define CONFIG_SYS_L3_SIZE 256 << 10
+#define CONFIG_SPL_GD_ADDR CONFIG_SYS_INIT_L3_ADDR
+#ifdef CONFIG_NAND
+#define CONFIG_ENV_ADDR (CONFIG_SYS_INIT_L3_ADDR + 4 * 1024)
+#endif
+#define CONFIG_SPL_RELOC_MALLOC_ADDR (CONFIG_SYS_INIT_L3_ADDR + 10 * 1024)
+#define CONFIG_SPL_RELOC_MALLOC_SIZE (30 << 10)
+#define CONFIG_SPL_RELOC_STACK (CONFIG_SYS_INIT_L3_ADDR + 64 * 1024)
+#define CONFIG_SPL_RELOC_STACK_SIZE (20 << 10)
#ifdef CONFIG_PHYS_64BIT
#define CONFIG_SYS_DCSRBAR 0xf0000000
@@ -193,7 +236,9 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_DDR_SPD
#define CONFIG_SYS_DDR_RAW_TIMING
#define CONFIG_SYS_FSL_DDR3
+#ifndef CONFIG_SPL_BUILD
#define CONFIG_FSL_DDR_INTERACTIVE
+#endif
#define CONFIG_SYS_SPD_BUS_NUM 0
#define SPD_EEPROM_ADDRESS1 0x51
@@ -381,7 +426,11 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_SYS_CS1_FTIM2 CONFIG_SYS_NOR_FTIM2
#define CONFIG_SYS_CS1_FTIM3 CONFIG_SYS_NOR_FTIM3
-#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SPL_TEXT_BASE
+#else
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE /* start of monitor */
+#endif
#if defined(CONFIG_RAMBOOT_PBL)
#define CONFIG_SYS_RAMBOOT
@@ -435,7 +484,9 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_SYS_NS16550_COM3 (CONFIG_SYS_CCSRBAR+0x11D500)
#define CONFIG_SYS_NS16550_COM4 (CONFIG_SYS_CCSRBAR+0x11D600)
#define CONFIG_SERIAL_MULTI /* Enable both serial ports */
+#ifndef CONFIG_SPL_BUILD
#define CONFIG_SYS_CONSOLE_IS_IN_ENV /* determine from environment */
+#endif
/* Use the HUSH parser */
@@ -607,7 +658,7 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_SYS_QE_FMAN_FW_ADDR (512 * 1130)
#elif defined(CONFIG_NAND)
#define CONFIG_SYS_QE_FMAN_FW_IN_NAND
-#define CONFIG_SYS_QE_FMAN_FW_ADDR (8 * CONFIG_SYS_NAND_BLOCK_SIZE)
+#define CONFIG_SYS_QE_FMAN_FW_ADDR (11 * CONFIG_SYS_NAND_BLOCK_SIZE)
#elif defined(CONFIG_SRIO_PCIE_BOOT_SLAVE)
/*
* Slave has no ucode locally, it can fetch this from remote. When implementing
--
1.7.9.5
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