Add AVR32 LCD support
This patch adds support for the AVR32 LCD controller. This patch is
based off the latest u-boot-video.
A quick summary of what's going on:-
Enable LCDC pixel clock
Enable LCDC port pins
Add framebuffer pointer to global_data struct
Allocate framebuffer
To use the new code, update your board config to include something like
this:-
#define CONFIG_LCD 1
#if defined(CONFIG_LCD)
#define CONFIG_CMD_BMP
#define CONFIG_ATMEL_LCD 1
#define LCD_BPP LCD_COLOR16
#define CONFIG_BMP_16BPP 1
#define CONFIG_FB_ADDR 0x10600000
#define CONFIG_WHITE_ON_BLACK 1
#define CONFIG_VIDEO_BMP_GZIP 1
#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE 262144
#define CONFIG_ATMEL_LCD_BGR555 1
#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
#define CONFIG_SPLASH_SCREEN 1
#endif
The standard U-Boot BMP and Splash-screen features should just work.
Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
[agust@denx.de: fixed some style issues]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/include/asm-avr32/arch-at32ap700x/chip-features.h b/include/asm-avr32/arch-at32ap700x/chip-features.h
index c47107e..40a2476 100644
--- a/include/asm-avr32/arch-at32ap700x/chip-features.h
+++ b/include/asm-avr32/arch-at32ap700x/chip-features.h
@@ -32,4 +32,9 @@
#define AT32AP700x_CHIP_HAS_MACB
#endif
+/* AP7000 and AP7002 have LCD controller, but AP7001 does not */
+#if defined(CONFIG_AT32AP7000) || defined(CONFIG_AT32AP7002)
+#define AT32AP700x_CHIP_HAS_LCDC
+#endif
+
#endif /* __ASM_AVR32_ARCH_CHIP_FEATURES_H__ */
diff --git a/include/asm-avr32/arch-at32ap700x/clk.h b/include/asm-avr32/arch-at32ap700x/clk.h
index d83e93b..7a0b655 100644
--- a/include/asm-avr32/arch-at32ap700x/clk.h
+++ b/include/asm-avr32/arch-at32ap700x/clk.h
@@ -83,6 +83,12 @@
return get_pba_clk_rate();
}
#endif
+#ifdef AT32AP700x_CHIP_HAS_LCDC
+static inline unsigned long get_lcdc_clk_rate(unsigned int dev_id)
+{
+ return get_hsb_clk_rate();
+}
+#endif
extern void clk_init(void);
diff --git a/include/asm-avr32/arch-at32ap700x/portmux.h b/include/asm-avr32/arch-at32ap700x/portmux.h
index 96fe70d..1ba52e5 100644
--- a/include/asm-avr32/arch-at32ap700x/portmux.h
+++ b/include/asm-avr32/arch-at32ap700x/portmux.h
@@ -85,5 +85,8 @@
void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength);
void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength);
#endif
+#ifdef AT32AP700x_CHIP_HAS_LCDC
+void portmux_enable_lcdc(int pin_config);
+#endif
#endif /* __ASM_AVR32_ARCH_PORTMUX_H__ */
diff --git a/include/asm-avr32/global_data.h b/include/asm-avr32/global_data.h
index 97a6c61..efbdda9 100644
--- a/include/asm-avr32/global_data.h
+++ b/include/asm-avr32/global_data.h
@@ -42,6 +42,9 @@
unsigned long env_addr; /* Address of env struct */
unsigned long env_valid; /* Checksum of env valid? */
unsigned long cpu_hz; /* cpu core clock frequency */
+#if defined(CONFIG_LCD)
+ void *fb_base; /* framebuffer address */
+#endif
void **jt; /* jump table */
} gd_t;