[U-Boot] [PATCH 9/9 v2] ARM: add an "eet" variant of the imx31_phycore board
Guennadi Liakhovetski
lg at denx.de
Thu Feb 5 13:32:52 CET 2009
The "eet" variant of the imx31_phycore board has an OLED display, using a
s6e63d6 display controller on the first SPI interface, using GPIO57 as a
chip-select for it. With this configuration you can display 256 colour BMP
images in 16-bit RGB (RGB565) LCD mode.
Signed-off-by: Guennadi Liakhovetski <lg at denx.de>
---
Changes since v1: adjusted to reflect changes in earlier patches: add .id
field initialisation, configuration parameter renamed to CONFIG_S6E63D6.
Makefile | 6 +++-
board/imx31_phycore/imx31_phycore.c | 52 +++++++++++++++++++++++++++++++++
include/asm-arm/arch-mx31/mx31-regs.h | 16 ++++++++++
include/configs/imx31_phycore.h | 23 ++++++++++++++
4 files changed, 96 insertions(+), 1 deletions(-)
diff --git a/Makefile b/Makefile
index 787c5f2..6151e2c 100644
--- a/Makefile
+++ b/Makefile
@@ -3025,8 +3025,12 @@ apollon_config : unconfig
imx31_litekit_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm1136 imx31_litekit NULL mx31
+imx31_phycore_eet_config \
imx31_phycore_config : unconfig
- @$(MKCONFIG) $(@:_config=) arm arm1136 imx31_phycore NULL mx31
+ @if [ -n "$(findstring imx31_phycore_eet_config,$@)" ]; then \
+ echo "#define CONFIG_IMX31_PHYCORE_EET" >> $(obj)include/config.h; \
+ fi
+ @$(MKCONFIG) -a imx31_phycore arm arm1136 imx31_phycore NULL mx31
mx31ads_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm1136 mx31ads freescale mx31
diff --git a/board/imx31_phycore/imx31_phycore.c b/board/imx31_phycore/imx31_phycore.c
index 4c64cb9..6b7cbb6 100644
--- a/board/imx31_phycore/imx31_phycore.c
+++ b/board/imx31_phycore/imx31_phycore.c
@@ -23,6 +23,7 @@
#include <common.h>
+#include <s6e63d6.h>
#include <asm/arch/mx31.h>
#include <asm/arch/mx31-regs.h>
@@ -66,6 +67,57 @@ int board_init (void)
return 0;
}
+#ifdef BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_DISPLAY_S6E63D6
+ struct s6e63d6 data = {
+ .cs = 2 | (57 << 8),
+ .bus = 0,
+ .id = 0,
+ };
+ int ret;
+
+ /* SPI1 */
+ mx31_gpio_mux(MUX_CSPI1_SCLK__CSPI1_CLK);
+ mx31_gpio_mux(MUX_CSPI1_SPI_RDY__CSPI1_DATAREADY_B);
+ mx31_gpio_mux(MUX_CSPI1_MOSI__CSPI1_MOSI);
+ mx31_gpio_mux(MUX_CSPI1_MISO__CSPI1_MISO);
+ mx31_gpio_mux(MUX_CSPI1_SS0__CSPI1_SS0_B);
+ mx31_gpio_mux(MUX_CSPI1_SS1__CSPI1_SS1_B);
+ mx31_gpio_mux(MUX_CSPI1_SS2__CSPI1_SS2_B);
+
+ /* start SPI1 clock */
+ __REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 2);
+
+ /* GPIO 57 */
+ /* sw_mux_ctl_key_col4_key_col5_key_col6_key_col7 */
+ mx31_gpio_mux(IOMUX_MODE(0x63, MUX_CTL_GPIO));
+
+ /* SPI1 CS2 is free */
+ ret = s6e63d6_init(&data);
+ if (ret)
+ return ret;
+
+ /*
+ * This is a "magic" sequence to initialise a C0240QGLA / C0283QGLC
+ * OLED display connected to a S6E63D6 SPI display controller in the
+ * 18 bit RGB mode
+ */
+ s6e63d6_index(&data, 2);
+ s6e63d6_param(&data, 0x0182);
+ s6e63d6_index(&data, 3);
+ s6e63d6_param(&data, 0x8130);
+ s6e63d6_index(&data, 0x10);
+ s6e63d6_param(&data, 0x0000);
+ s6e63d6_index(&data, 5);
+ s6e63d6_param(&data, 0x0001);
+ s6e63d6_index(&data, 0x22);
+#endif
+ return 0;
+}
+#endif
+
int checkboard (void)
{
printf("Board: Phytec phyCore i.MX31\n");
diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
index e736052..dcc0805 100644
--- a/include/asm-arm/arch-mx31/mx31-regs.h
+++ b/include/asm-arm/arch-mx31/mx31-regs.h
@@ -124,7 +124,14 @@
#define MUX_CTL_CSPI2_SS0 0x85
#define MUX_CTL_CSPI2_SS1 0x86
#define MUX_CTL_CSPI2_SS2 0x87
+#define MUX_CTL_CSPI1_SS2 0x88
+#define MUX_CTL_CSPI1_SCLK 0x89
+#define MUX_CTL_CSPI1_SPI_RDY 0x8a
#define MUX_CTL_CSPI2_MOSI 0x8b
+#define MUX_CTL_CSPI1_MOSI 0x8c
+#define MUX_CTL_CSPI1_MISO 0x8d
+#define MUX_CTL_CSPI1_SS0 0x8e
+#define MUX_CTL_CSPI1_SS1 0x8f
/*
* Helper macros for the MUX_[contact name]__[pin function] macros
@@ -150,6 +157,15 @@
IOMUX_MODE(MUX_CTL_CSPI2_SPI_RDY, MUX_CTL_FUNC)
#define MUX_CSPI2_SCLK__CSPI2_CLK IOMUX_MODE(MUX_CTL_CSPI2_SCLK, MUX_CTL_FUNC)
+#define MUX_CSPI1_SS0__CSPI1_SS0_B IOMUX_MODE(MUX_CTL_CSPI1_SS0, MUX_CTL_FUNC)
+#define MUX_CSPI1_SS1__CSPI1_SS1_B IOMUX_MODE(MUX_CTL_CSPI1_SS1, MUX_CTL_FUNC)
+#define MUX_CSPI1_SS2__CSPI1_SS2_B IOMUX_MODE(MUX_CTL_CSPI1_SS2, MUX_CTL_FUNC)
+#define MUX_CSPI1_MOSI__CSPI1_MOSI IOMUX_MODE(MUX_CTL_CSPI1_MOSI, MUX_CTL_FUNC)
+#define MUX_CSPI1_MISO__CSPI1_MISO IOMUX_MODE(MUX_CTL_CSPI1_MISO, MUX_CTL_FUNC)
+#define MUX_CSPI1_SPI_RDY__CSPI1_DATAREADY_B \
+ IOMUX_MODE(MUX_CTL_CSPI1_SPI_RDY, MUX_CTL_FUNC)
+#define MUX_CSPI1_SCLK__CSPI1_CLK IOMUX_MODE(MUX_CTL_CSPI1_SCLK, MUX_CTL_FUNC)
+
#define MUX_CSPI2_MOSI__I2C2_SCL IOMUX_MODE(MUX_CTL_CSPI2_MOSI, MUX_CTL_ALT1)
#define MUX_CSPI2_MISO__I2C2_SDA IOMUX_MODE(MUX_CTL_CSPI2_MISO, MUX_CTL_ALT1)
diff --git a/include/configs/imx31_phycore.h b/include/configs/imx31_phycore.h
index f0d28ee..2dd9e92 100644
--- a/include/configs/imx31_phycore.h
+++ b/include/configs/imx31_phycore.h
@@ -178,4 +178,27 @@
#undef CONFIG_JFFS2_CMDLINE
#define CONFIG_JFFS2_DEV "nor0"
+/* EET platform additions */
+#ifdef CONFIG_IMX31_PHYCORE_EET
+#define BOARD_LATE_INIT
+
+#define CONFIG_MX31_GPIO 1
+
+#define CONFIG_HARD_SPI 1
+#define CONFIG_MXC_SPI 1
+#define CONFIG_CMD_SPI
+
+#define CONFIG_S6E63D6 1
+
+#define CONFIG_LCD 1
+#define CONFIG_VIDEO_MX3 1
+#define CONFIG_SYS_WHITE_ON_BLACK 1
+#define LCD_BPP LCD_COLOR8
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 1
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
+
+#define CONFIG_SPLASH_SCREEN 1
+#define CONFIG_CMD_BMP 1
+#endif
+
#endif /* __CONFIG_H */
--
1.5.4
More information about the U-Boot
mailing list