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authorPo Liu <po.liu@freescale.com>2014-01-10 10:10:59 +0800
committerYork Sun <yorksun@freescale.com>2014-01-21 13:42:40 -0800
commiteb6b458cef28c86603d56a27b9ee699b13c60c14 (patch)
treeae4973790cc7d439f19255db39a5156c91120b22 /board/freescale/c29xpcie/spl.c
parent6609916efb74724e53db368dd48bfb290d4d9f4c (diff)
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powerpc/c29xpcie: 8k page size NAND boot support base on TPL/SPL
Using the TPL/SPL method to booting from 8k page NAND flash. - Add 256kB size SRAM tlb for second step booting; - Add spl.c for TPL image boot; - Add spl_minimal.c for minimal SPL image; - Add C29XPCIE_NAND configure; - Modify C29XPCIE.h for nand config and enviroment; Signed-off-by: Po Liu <Po.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/c29xpcie/spl.c')
-rw-r--r--board/freescale/c29xpcie/spl.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/board/freescale/c29xpcie/spl.c b/board/freescale/c29xpcie/spl.c
new file mode 100644
index 0000000..3cfdb72
--- /dev/null
+++ b/board/freescale/c29xpcie/spl.c
@@ -0,0 +1,77 @@
+/* Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <nand.h>
+#include <i2c.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ulong get_effective_memsize(void)
+{
+ return CONFIG_SYS_L2_SIZE;
+}
+
+void board_init_f(ulong bootflag)
+{
+ u32 plat_ratio;
+ ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+ console_init_f();
+
+ /* initialize selected port with appropriate baud rate */
+ plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+ plat_ratio >>= 1;
+ gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
+
+ NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+ gd->bus_clk / 16 / CONFIG_BAUDRATE);
+
+ /* copy code to RAM and jump to it - this should not return */
+ /* NOTE - code has to be copied out of NAND buffer before
+ * other blocks can be read.
+ */
+ relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t *)CONFIG_SPL_GD_ADDR;
+ bd_t *bd;
+
+ memset(gd, 0, sizeof(gd_t));
+ bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
+ memset(bd, 0, sizeof(bd_t));
+ gd->bd = bd;
+ bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
+ bd->bi_memsize = CONFIG_SYS_L2_SIZE;
+
+ probecpu();
+ get_clocks();
+ mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
+ CONFIG_SPL_RELOC_MALLOC_SIZE);
+
+ /* relocate environment function pointers etc. */
+ 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;
+
+ i2c_init_all();
+
+ gd->ram_size = initdram(0);
+
+#ifdef CONFIG_SPL_NAND_BOOT
+ puts("TPL\n");
+#else
+ puts("SPL\n");
+#endif
+
+ nand_boot();
+}