summaryrefslogtreecommitdiff
path: root/board/freescale/t208xqds/spl.c
diff options
context:
space:
mode:
authorShengzhou Liu <Shengzhou.Liu@freescale.com>2014-04-18 16:43:39 +0800
committerYork Sun <yorksun@freescale.com>2014-04-22 17:58:52 -0700
commitb19e288f47ea7db98eefbebdda0fe0fad66d845c (patch)
tree1154266ccb7c320ae5be58f55b34f4eba651167c /board/freescale/t208xqds/spl.c
parentd1c561cd546353686b28199bf9a90810805c7ada (diff)
downloadu-boot-imx-b19e288f47ea7db98eefbebdda0fe0fad66d845c.zip
u-boot-imx-b19e288f47ea7db98eefbebdda0fe0fad66d845c.tar.gz
u-boot-imx-b19e288f47ea7db98eefbebdda0fe0fad66d845c.tar.bz2
board/t208xqds: Add support of 2-stage NAND/SPI/SD boot
Add support of 2-stage NAND/SPI/SD boot loader using SPL framework. PBL initializes the internal CPC-SRAM and copy SPL(160K) to it, SPL further initializes DDR using SPD and environment and copy u-boot(768 KB) from SPI/SD/NAND to DDR, finally SPL transfers control to u-boot. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> [York Sun: fix boards.cfg for T2081QDS_SDCARD and _SPIFLASH] Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/t208xqds/spl.c')
-rw-r--r--board/freescale/t208xqds/spl.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/board/freescale/t208xqds/spl.c b/board/freescale/t208xqds/spl.c
new file mode 100644
index 0000000..a71c617
--- /dev/null
+++ b/board/freescale/t208xqds/spl.c
@@ -0,0 +1,137 @@
+/* Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <ns16550.h>
+#include <nand.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <spi_flash.h>
+#include "../common/qixis.h"
+#include "t208xqds_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 & 0x0F) {
+ case QIXIS_SYSCLK_83:
+ return 83333333;
+ case QIXIS_SYSCLK_100:
+ return 100000000;
+ case QIXIS_SYSCLK_125:
+ return 125000000;
+ case QIXIS_SYSCLK_133:
+ return 133333333;
+ case QIXIS_SYSCLK_150:
+ return 150000000;
+ case QIXIS_SYSCLK_160:
+ return 160000000;
+ case QIXIS_SYSCLK_166:
+ return 166666666;
+ }
+ return 66666666;
+}
+
+unsigned long get_board_ddr_clk(void)
+{
+ u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
+
+ switch ((ddrclk_conf & 0x30) >> 4) {
+ case QIXIS_DDRCLK_100:
+ return 100000000;
+ case QIXIS_DDRCLK_125:
+ return 125000000;
+ case QIXIS_DDRCLK_133:
+ return 133333333;
+ }
+ return 66666666;
+}
+
+void board_init_f(ulong bootflag)
+{
+ u32 plat_ratio, sys_clk, ccb_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);
+
+ 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;
+ ccb_clk = sys_clk * plat_ratio / 2;
+
+ NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+ ccb_clk / 16 / CONFIG_BAUDRATE);
+
+#if defined(CONFIG_SPL_MMC_BOOT)
+ puts("\nSD boot...\n");
+#elif defined(CONFIG_SPL_SPI_BOOT)
+ puts("\nSPI boot...\n");
+#elif defined(CONFIG_SPL_NAND_BOOT)
+ puts("\nNAND boot...\n");
+#endif
+
+ 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);
+
+#ifdef CONFIG_SPL_NAND_BOOT
+ nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+ (uchar *)CONFIG_ENV_ADDR);
+#endif
+#ifdef CONFIG_SPL_MMC_BOOT
+ mmc_initialize(bd);
+ mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+ (uchar *)CONFIG_ENV_ADDR);
+#endif
+#ifdef CONFIG_SPL_SPI_BOOT
+ spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+ (uchar *)CONFIG_ENV_ADDR);
+#endif
+
+ gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
+ gd->env_valid = 1;
+
+ i2c_init_all();
+
+ gd->ram_size = initdram(0);
+
+#ifdef CONFIG_SPL_MMC_BOOT
+ mmc_boot();
+#elif defined(CONFIG_SPL_SPI_BOOT)
+ spi_boot();
+#elif defined(CONFIG_SPL_NAND_BOOT)
+ nand_boot();
+#endif
+}