DDR support to boot from NAND/eSDHC/eSPI on P1 & P2 RDB platforms. Specifically this support needed when L2 Cache size is less than 512K.
Signed-off-by: Dipen Dudhat dipen.dudhat@freescale.com --- - Applies to http://git.denx.de/u-boot.git - Changes from v2: integrated kumar's comments. board/freescale/p1_p2_rdb/config.mk | 8 +++ board/freescale/p1_p2_rdb/ddr.c | 3 + board/freescale/p1_p2_rdb/tlb.c | 9 +++- include/configs/P1_P2_RDB.h | 31 ++++++++++++ nand_spl/board/freescale/p1_p2_rdb/nand_boot.c | 59 ++++++++++++++++++++++++ 5 files changed, 109 insertions(+), 1 deletions(-)
diff --git a/board/freescale/p1_p2_rdb/config.mk b/board/freescale/p1_p2_rdb/config.mk index 0f7a048..e782928 100644 --- a/board/freescale/p1_p2_rdb/config.mk +++ b/board/freescale/p1_p2_rdb/config.mk @@ -33,13 +33,21 @@ endif
ifeq ($(CONFIG_MK_SDCARD), y) TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE) +ifdef CONFIG_SYS_FSL_BOOT_DDR +RESET_VECTOR_ADDRESS = 0x1107fffc +else RESET_VECTOR_ADDRESS = 0xf8fffffc endif +endif
ifeq ($(CONFIG_MK_SPIFLASH), y) TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE) +ifdef CONFIG_SYS_FSL_BOOT_DDR +RESET_VECTOR_ADDRESS = 0x1107fffc +else RESET_VECTOR_ADDRESS = 0xf8fffffc endif +endif
ifndef TEXT_BASE TEXT_BASE = 0xeff80000 diff --git a/board/freescale/p1_p2_rdb/ddr.c b/board/freescale/p1_p2_rdb/ddr.c index 37c4b0a..dc967de 100644 --- a/board/freescale/p1_p2_rdb/ddr.c +++ b/board/freescale/p1_p2_rdb/ddr.c @@ -246,6 +246,9 @@ phys_size_t initdram(int board_type) { phys_size_t dram_size = 0;
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_FSL_BOOT_DDR) + return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; +#endif dram_size = fixed_sdram(); set_ddr_laws(0, dram_size, LAW_TRGT_IF_DDR_1);
diff --git a/board/freescale/p1_p2_rdb/tlb.c b/board/freescale/p1_p2_rdb/tlb.c index 0009913..c250e3e 100644 --- a/board/freescale/p1_p2_rdb/tlb.c +++ b/board/freescale/p1_p2_rdb/tlb.c @@ -78,7 +78,8 @@ 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) +#if defined(CONFIG_SYS_RAMBOOT) +#if 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, @@ -87,6 +88,12 @@ struct fsl_e_tlb_entry tlb_table[] = { CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000, MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 0, 8, BOOKE_PAGESZ_256K, 1), +#else + /* *I*G - DDR */ + SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 7, BOOKE_PAGESZ_1G, 1) +#endif #endif };
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h index 310242e..dae2e8d 100644 --- a/include/configs/P1_P2_RDB.h +++ b/include/configs/P1_P2_RDB.h @@ -43,21 +43,40 @@ #define CONFIG_P2020 #endif
+/* Boot using DDR for eSDHC/eSPI/NAND boot because L2 Cache size + * on these platforms is 256K. + */ +#if defined(CONFIG_P1011) || defined(CONFIG_P1020) +#define CONFIG_SYS_FSL_BOOT_DDR +#endif + #ifdef CONFIG_MK_NAND #define CONFIG_NAND_U_BOOT 1 #define CONFIG_RAMBOOT_NAND 1 +#ifdef CONFIG_SYS_FSL_BOOT_DDR +#define CONFIG_RAMBOOT_TEXT_BASE 0x01001000 +#else #define CONFIG_RAMBOOT_TEXT_BASE 0xf8f82000 #endif +#endif
#ifdef CONFIG_MK_SDCARD #define CONFIG_RAMBOOT_SDCARD 1 +#ifdef CONFIG_SYS_FSL_BOOT_DDR +#define CONFIG_RAMBOOT_TEXT_BASE 0x11000000 +#else #define CONFIG_RAMBOOT_TEXT_BASE 0xf8f80000 #endif +#endif
#ifdef CONFIG_MK_SPIFLASH #define CONFIG_RAMBOOT_SPIFLASH 1 +#ifdef CONFIG_SYS_FSL_BOOT_DDR +#define CONFIG_RAMBOOT_TEXT_BASE 0x11000000 +#else #define CONFIG_RAMBOOT_TEXT_BASE 0xf8f80000 #endif +#endif
/* High Level Configuration Options */ #define CONFIG_BOOKE 1 /* BOOKE */ @@ -101,6 +120,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy); /* * Config the L2 Cache as L2 SRAM */ +#ifndef CONFIG_SYS_FSL_BOOT_DDR #define CONFIG_SYS_INIT_L2_ADDR 0xf8f80000 #ifdef CONFIG_PHYS_64BIT #define CONFIG_SYS_INIT_L2_ADDR_PHYS 0xff8f80000ull @@ -109,6 +129,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy); #endif #define CONFIG_SYS_L2_SIZE (512 << 10) #define CONFIG_SYS_INIT_L2_END (CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE) +#endif
/* * Base addresses -- Note these are effective addresses where the @@ -233,6 +254,15 @@ extern unsigned long get_board_sys_clk(unsigned long dummy); #define CONFIG_SYS_NAND_BLOCK_SIZE (16 * 1024)
/* NAND boot: 4K NAND loader config */ +#ifdef CONFIG_SYS_FSL_BOOT_DDR +#define CONFIG_SYS_NAND_SPL_SIZE 0x1000 +#define CONFIG_SYS_NAND_U_BOOT_SIZE ((512 << 10) + CONFIG_SYS_NAND_SPL_SIZE) +#define CONFIG_SYS_NAND_U_BOOT_DST (0x01000000 - CONFIG_SYS_NAND_SPL_SIZE) +#define CONFIG_SYS_NAND_U_BOOT_START 0x01000000 +#define CONFIG_SYS_NAND_U_BOOT_OFFS (0) +#define CONFIG_SYS_NAND_U_BOOT_RELOC 0x00010000 +#define CONFIG_SYS_NAND_U_BOOT_RELOC_SP (CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000) +#else #define CONFIG_SYS_NAND_SPL_SIZE 0x1000 #define CONFIG_SYS_NAND_U_BOOT_SIZE ((512 << 10) - 0x2000) #define CONFIG_SYS_NAND_U_BOOT_DST (CONFIG_SYS_INIT_L2_ADDR) @@ -240,6 +270,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy); #define CONFIG_SYS_NAND_U_BOOT_OFFS (0) #define CONFIG_SYS_NAND_U_BOOT_RELOC (CONFIG_SYS_INIT_L2_END - 0x2000) #define CONFIG_SYS_NAND_U_BOOT_RELOC_SP ((CONFIG_SYS_INIT_L2_END - 1) & ~0xF) +#endif
/* NAND flash config */ #define CONFIG_NAND_BR_PRELIM (CONFIG_SYS_NAND_BASE_PHYS \ diff --git a/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c b/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c index bd513b8..2512f15 100644 --- a/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c +++ b/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c @@ -39,6 +39,60 @@
DECLARE_GLOBAL_DATA_PTR;
+#if defined(CONFIG_SYS_FSL_BOOT_DDR) +#define CONFIG_SYS_DDR_CS0_BNDS 0x0000003F +#define CONFIG_SYS_DDR_CS0_CONFIG 0x80014202 +#define CONFIG_SYS_DDR_CS0_CONFIG_2 0x00000000 +#define CONFIG_SYS_DDR_CONTROL 0x43000000 /* Type = DDR2*/ +#define CONFIG_SYS_DDR_CONTROL_2 0x24401000 + +#define CONFIG_SYS_DDR_TIMING_3_667 0x00030000 +#define CONFIG_SYS_DDR_TIMING_0_667 0x55770802 +#define CONFIG_SYS_DDR_TIMING_1_667 0x5f599543 +#define CONFIG_SYS_DDR_TIMING_2_667 0x0fa074d1 +#define CONFIG_SYS_DDR_CLK_CTRL_667 0x02800000 +#define CONFIG_SYS_DDR_MODE_1_667 0x00040852 +#define CONFIG_SYS_DDR_MODE_2_667 0x00000000 +#define CONFIG_SYS_DDR_INTERVAL_667 0x0a280100 + +#define udelay(x) {int i, j; for (i = 0; i < x; i++) for (j = 0; j < 10000; j++); } + +void initsdram(void) +{ + + volatile ccsr_ddr_t *ddr= (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR; + int d_init, dbw; + volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); + unsigned int ddr_size; + sys_info_t sysinfo; + phys_size_t dram_size = 0; + + set_next_law(0,LAW_SIZE_1G , LAW_TRGT_IF_DDR_1); + + out_be32(&ddr->cs0_bnds, CONFIG_SYS_DDR_CS0_BNDS); + out_be32(&ddr->cs0_config, CONFIG_SYS_DDR_CS0_CONFIG); + out_be32(&ddr->cs0_config_2, CONFIG_SYS_DDR_CS0_CONFIG_2); + + out_be32(&ddr->timing_cfg_3, CONFIG_SYS_DDR_TIMING_3_667); + out_be32(&ddr->timing_cfg_0, CONFIG_SYS_DDR_TIMING_0_667); + out_be32(&ddr->timing_cfg_1, CONFIG_SYS_DDR_TIMING_1_667); + out_be32(&ddr->timing_cfg_2, CONFIG_SYS_DDR_TIMING_2_667); + out_be32(&ddr->sdram_mode, CONFIG_SYS_DDR_MODE_1_667); + out_be32(&ddr->sdram_mode_2, CONFIG_SYS_DDR_MODE_2_667); + out_be32(&ddr->sdram_interval, CONFIG_SYS_DDR_INTERVAL_667); + out_be32(&ddr->sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CTRL_667); + out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL); + out_be32(&ddr->sdram_cfg_2, CONFIG_SYS_DDR_CONTROL_2); + + asm("sync;isync"); + + udelay(500); + + ddr->sdram_cfg |= 0x80000000; + +} +#endif + void board_init_f(ulong bootflag) { uint plat_ratio, bus_clk, sys_clk; @@ -69,6 +123,11 @@ void board_init_f(ulong bootflag)
puts("\nNAND boot... ");
+#ifdef CONFIG_SYS_FSL_BOOT_DDR + /* board specific DDR initialization */ + initsdram(); +#endif + /* copy code to DDR and jump to it - this should not return */ /* NOTE - code has to be copied out of NAND buffer before * other blocks can be read.