summaryrefslogtreecommitdiff
path: root/board
diff options
context:
space:
mode:
authorPeng Fan <Peng.Fan@freescale.com>2014-12-31 11:01:40 +0800
committerJagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>2014-12-31 14:52:32 +0530
commitfad7d735a001a542a2aae60cb1a68a70a4bb0245 (patch)
tree3b08d8afda4f2ad30bdbfbd2464b4d3cbb471761 /board
parentba4dc8ab7260b2afb0f9d5de0ae9c3723e699df0 (diff)
downloadu-boot-imx-fad7d735a001a542a2aae60cb1a68a70a4bb0245.zip
u-boot-imx-fad7d735a001a542a2aae60cb1a68a70a4bb0245.tar.gz
u-boot-imx-fad7d735a001a542a2aae60cb1a68a70a4bb0245.tar.bz2
imx:mx6sxsabresd add qspi support
Configure the pad setting and enable qspi clock to support qspi flashes access. Add QSPI related macro in configuration header file. Note: mx6sxsabresd Revb board, 32M flash is used, but in header file, CONFIG_SPI_FLASH_BAR is not defined, and we still use SZ_16M. The LUT initialization qspi_set_lut function uses 32BIT addr, however CONFIG_SPI_FLASH_BAR and 24BIT addr should be used to access bigger than 16MB size flash, and BRRD/BRWR should also be supported. Future patches will fix this. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/mx6sxsabresd/mx6sxsabresd.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
index fd8bc72..5cc58ac 100644
--- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c
+++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
@@ -371,6 +371,42 @@ int board_mmc_init(bd_t *bis)
return 0;
}
+#ifdef CONFIG_FSL_QSPI
+
+#define QSPI_PAD_CTRL1 \
+ (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_HIGH | \
+ PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_40ohm)
+
+static iomux_v3_cfg_t const quadspi_pads[] = {
+ MX6_PAD_NAND_WP_B__QSPI2_A_DATA_0 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_READY_B__QSPI2_A_DATA_1 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_CE0_B__QSPI2_A_DATA_2 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_CE1_B__QSPI2_A_DATA_3 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_ALE__QSPI2_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_CLE__QSPI2_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA07__QSPI2_A_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA01__QSPI2_B_DATA_0 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA00__QSPI2_B_DATA_1 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_WE_B__QSPI2_B_DATA_2 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_RE_B__QSPI2_B_DATA_3 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA03__QSPI2_B_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA02__QSPI2_B_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+ MX6_PAD_NAND_DATA05__QSPI2_B_DQS | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+};
+
+int board_qspi_init(void)
+{
+ /* Set the iomux */
+ imx_iomux_v3_setup_multiple_pads(quadspi_pads,
+ ARRAY_SIZE(quadspi_pads));
+
+ /* Set the clock */
+ enable_qspi_clk(1);
+
+ return 0;
+}
+#endif
+
int board_init(void)
{
/* Address of boot parameters */
@@ -380,6 +416,10 @@ int board_init(void)
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
#endif
+#ifdef CONFIG_FSL_QSPI
+ board_qspi_init();
+#endif
+
return 0;
}