From 2e95004deb6e33e33bf1b8a92a38cd2115bac4c2 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 24 Nov 2009 20:12:12 +0300 Subject: mpc83xx: Add NAND boot support for MPC8315E-RDB boards The core support for NAND booting is there already, so this patch is pretty straightforward. There is one trick though: top level Makefile expects nand_spl to be in nand_spl/board/$(BOARDDIR), but we can fully reuse the code from mpc8313erdb boards, and so to not duplicate the code we just symlink nand_spl/board/freescale/mpc8315erdb to mpc8313erdb. Signed-off-by: Anton Vorontsov o silence make during ln echo o update documentation o and avoid: $ ./MAKEALL MPC8315ERDB_NAND Configuring for MPC8315ERDB board... sdram.o: In function `fixed_sdram': /home/r1aaha/git/u-boot/nand_spl/board/freescale/mpc8313erdb/sdram.c:72: undefined reference to `udelay' by renaming udelay -> __udelay in the spirit of commit 3eb90bad651fab39cffba750ec4421a9c01d60e7 "Generic udelay() with watchdog support". Signed-off-by: Kim Phillips --- board/freescale/mpc8315erdb/config.mk | 8 ++++++ board/freescale/mpc8315erdb/mpc8315erdb.c | 42 +++++++++++++++++++++++++++++++ board/freescale/mpc8315erdb/sdram.c | 9 ++++++- 3 files changed, 58 insertions(+), 1 deletion(-) (limited to 'board') diff --git a/board/freescale/mpc8315erdb/config.mk b/board/freescale/mpc8315erdb/config.mk index f76826495..bf972fbe5 100644 --- a/board/freescale/mpc8315erdb/config.mk +++ b/board/freescale/mpc8315erdb/config.mk @@ -1 +1,9 @@ +ifndef NAND_SPL +ifeq ($(CONFIG_MK_NAND), y) +TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE) +endif +endif + +ifndef TEXT_BASE TEXT_BASE = 0xFE000000 +endif diff --git a/board/freescale/mpc8315erdb/mpc8315erdb.c b/board/freescale/mpc8315erdb/mpc8315erdb.c index dea4d6fe7..d5e71dc52 100644 --- a/board/freescale/mpc8315erdb/mpc8315erdb.c +++ b/board/freescale/mpc8315erdb/mpc8315erdb.c @@ -32,6 +32,8 @@ #include #include #include +#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -45,6 +47,8 @@ int board_early_init_f(void) return 0; } +#ifndef CONFIG_NAND_SPL + static u8 read_board_info(void) { u8 val8; @@ -220,3 +224,41 @@ int board_eth_init(bd_t *bis) cpu_eth_init(bis); /* Initialize TSECs first */ return pci_eth_init(bis); } + +#else /* CONFIG_NAND_SPL */ + +int checkboard(void) +{ + puts("Board: Freescale MPC8315ERDB\n"); + return 0; +} + +void board_init_f(ulong bootflag) +{ + board_early_init_f(); + NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), + CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE); + puts("NAND boot... "); + init_timebase(); + initdram(0); + relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd, + CONFIG_SYS_NAND_U_BOOT_RELOC); +} + +void board_init_r(gd_t *gd, ulong dest_addr) +{ + nand_boot(); +} + +void putc(char c) +{ + if (gd->flags & GD_FLG_SILENT) + return; + + if (c == '\n') + NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r'); + + NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c); +} + +#endif /* CONFIG_NAND_SPL */ diff --git a/board/freescale/mpc8315erdb/sdram.c b/board/freescale/mpc8315erdb/sdram.c index ead7b1e0d..fe8ec1eab 100644 --- a/board/freescale/mpc8315erdb/sdram.c +++ b/board/freescale/mpc8315erdb/sdram.c @@ -54,6 +54,7 @@ static void resume_from_sleep(void) * This is useful for faster booting in configs where the RAM is unlikely * to be changed, or for things like NAND booting where space is tight. */ +#ifndef CONFIG_SYS_RAMBOOT static long fixed_sdram(void) { volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; @@ -68,7 +69,7 @@ static long fixed_sdram(void) * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg], * or the DDR2 controller may fail to initialize correctly. */ - udelay(50000); + __udelay(50000); im->ddr.csbnds[0].csbnds = (msize - 1) >> 24; im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG; @@ -100,6 +101,12 @@ static long fixed_sdram(void) return msize; } +#else +static long fixed_sdram(void) +{ + return CONFIG_SYS_DDR_SIZE * 1024 * 1024; +} +#endif /* CONFIG_SYS_RAMBOOT */ phys_size_t initdram(int board_type) { -- cgit v1.2.3