diff options
Diffstat (limited to 'board/davinci/ea20/ea20.c')
| -rw-r--r-- | board/davinci/ea20/ea20.c | 205 |
1 files changed, 172 insertions, 33 deletions
diff --git a/board/davinci/ea20/ea20.c b/board/davinci/ea20/ea20.c index 9d0f71bc55..720a3607a7 100644 --- a/board/davinci/ea20/ea20.c +++ b/board/davinci/ea20/ea20.c @@ -35,11 +35,28 @@ #include <asm/arch/emac_defs.h> #include <asm/io.h> #include <asm/arch/davinci_misc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/da8xx-fb.h> DECLARE_GLOBAL_DATA_PTR; #define pinmux(x) (&davinci_syscfg_regs->pinmux[x]) +static const struct da8xx_panel lcd_panel = { + /* Casio COM57H531x */ + .name = "Casio_COM57H531x", + .width = 640, + .height = 480, + .hfp = 12, + .hbp = 144, + .hsw = 30, + .vfp = 10, + .vbp = 35, + .vsw = 3, + .pxl_clk = 25000000, + .invert_pxl_clk = 0, +}; + /* SPI0 pin muxer settings */ static const struct pinmux_config spi1_pins[] = { { pinmux(5), 1, 1 }, @@ -48,12 +65,18 @@ static const struct pinmux_config spi1_pins[] = { { pinmux(5), 1, 5 } }; -/* UART pin muxer settings */ +/* I2C pin muxer settings */ +static const struct pinmux_config i2c_pins[] = { + { pinmux(4), 2, 2 }, + { pinmux(4), 2, 3 } +}; + +/* UART0 pin muxer settings */ static const struct pinmux_config uart_pins[] = { - { pinmux(0), 4, 6 }, - { pinmux(0), 4, 7 }, - { pinmux(4), 2, 4 }, - { pinmux(4), 2, 5 } + { pinmux(3), 2, 7 }, + { pinmux(3), 2, 6 }, + { pinmux(3), 2, 4 }, + { pinmux(3), 2, 5 } }; #ifdef CONFIG_DRIVER_TI_EMAC @@ -73,70 +96,136 @@ static const struct pinmux_config emac_pins[] = { #ifdef CONFIG_NAND_DAVINCI const struct pinmux_config nand_pins[] = { - { pinmux(7), 1, 1 }, - { pinmux(7), 1, 2 }, - { pinmux(7), 1, 4 }, - { pinmux(7), 1, 5 }, - { pinmux(9), 1, 0 }, - { pinmux(9), 1, 1 }, - { pinmux(9), 1, 2 }, - { pinmux(9), 1, 3 }, - { pinmux(9), 1, 4 }, - { pinmux(9), 1, 5 }, - { pinmux(9), 1, 6 }, - { pinmux(9), 1, 7 }, - { pinmux(12), 1, 5 }, - { pinmux(12), 1, 6 } + { pinmux(7), 1, 0}, /* CS2 */ + { pinmux(7), 0, 1}, /* CS3 in three state*/ + { pinmux(7), 1, 4 }, /* EMA_WE */ + { pinmux(7), 1, 5 }, /* EMA_OE */ + { pinmux(9), 1, 0 }, /* EMA_D[7] */ + { pinmux(9), 1, 1 }, /* EMA_D[6] */ + { pinmux(9), 1, 2 }, /* EMA_D[5] */ + { pinmux(9), 1, 3 }, /* EMA_D[4] */ + { pinmux(9), 1, 4 }, /* EMA_D[3] */ + { pinmux(9), 1, 5 }, /* EMA_D[2] */ + { pinmux(9), 1, 6 }, /* EMA_D[1] */ + { pinmux(9), 1, 7 }, /* EMA_D[0] */ + { pinmux(12), 1, 5 }, /* EMA_A[2] */ + { pinmux(12), 1, 6 }, /* EMA_A[1] */ + { pinmux(6), 1, 0 } /* EMA_CLK */ }; #endif +const struct pinmux_config gpio_pins[] = { + { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/ + { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/ + { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/ + { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */ + { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/ +}; + +const struct pinmux_config lcd_pins[] = { + { pinmux(17), 2, 1 }, /* LCD_D_0 */ + { pinmux(17), 2, 0 }, /* LCD_D_1 */ + { pinmux(16), 2, 7 }, /* LCD_D_2 */ + { pinmux(16), 2, 6 }, /* LCD_D_3 */ + { pinmux(16), 2, 5 }, /* LCD_D_4 */ + { pinmux(16), 2, 4 }, /* LCD_D_5 */ + { pinmux(16), 2, 3 }, /* LCD_D_6 */ + { pinmux(16), 2, 2 }, /* LCD_D_7 */ + { pinmux(18), 2, 1 }, /* LCD_D_8 */ + { pinmux(18), 2, 0 }, /* LCD_D_9 */ + { pinmux(17), 2, 7 }, /* LCD_D_10 */ + { pinmux(17), 2, 6 }, /* LCD_D_11 */ + { pinmux(17), 2, 5 }, /* LCD_D_12 */ + { pinmux(17), 2, 4 }, /* LCD_D_13 */ + { pinmux(17), 2, 3 }, /* LCD_D_14 */ + { pinmux(17), 2, 2 }, /* LCD_D_15 */ + { pinmux(18), 2, 6 }, /* LCD_PCLK */ + { pinmux(19), 2, 0 }, /* LCD_HSYNC */ + { pinmux(19), 2, 1 }, /* LCD_VSYNC */ + { pinmux(19), 2, 6 }, /* DA850_NLCD_AC_ENB_CS */ +}; + +const struct pinmux_config halten_pin[] = { + { pinmux(3), 4, 2 } /* GPIO8[6] HALTEN */ +}; + static const struct pinmux_resource pinmuxes[] = { #ifdef CONFIG_SPI_FLASH PINMUX_ITEM(spi1_pins), #endif PINMUX_ITEM(uart_pins), + PINMUX_ITEM(i2c_pins), #ifdef CONFIG_NAND_DAVINCI PINMUX_ITEM(nand_pins), #endif +#ifdef CONFIG_VIDEO + PINMUX_ITEM(lcd_pins), +#endif }; static const struct lpsc_resource lpsc[] = { { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ { DAVINCI_LPSC_SPI1 }, /* Serial Flash */ { DAVINCI_LPSC_EMAC }, /* image download */ - { DAVINCI_LPSC_UART2 }, /* console */ + { DAVINCI_LPSC_UART0 }, /* console */ { DAVINCI_LPSC_GPIO }, + { DAVINCI_LPSC_LCDC }, /* LCD */ }; -int board_init(void) +int board_early_init_f(void) { + struct davinci_gpio *gpio6_base = + (struct davinci_gpio *)DAVINCI_GPIO_BANK67; + + /* PinMux for GPIO */ + if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0) + return 1; + + /* Set the RESETOUTn low */ + writel((readl(&gpio6_base->set_data) & ~(1 << 15)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 15)), &gpio6_base->dir); + + /* Set U0_SW0 low for UART0 as console*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 10)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 10)), &gpio6_base->dir); + + /* Set U0_SW1 low for UART0 as console*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 12)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 12)), &gpio6_base->dir); + + /* Set LCD_B_PWR low to power down LCD Backlight*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 6)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 6)), &gpio6_base->dir); + + /* Set DISP_ON low to disable LCD output*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 1)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 1)), &gpio6_base->dir); + #ifndef CONFIG_USE_IRQ irq_init(); #endif - -#ifdef CONFIG_NAND_DAVINCI /* * NAND CS setup - cycle counts based on da850evm NAND timings in the * Linux kernel @ 25MHz EMIFA */ +#ifdef CONFIG_NAND_DAVINCI writel((DAVINCI_ABCR_WSETUP(0) | - DAVINCI_ABCR_WSTROBE(0) | + DAVINCI_ABCR_WSTROBE(1) | DAVINCI_ABCR_WHOLD(0) | DAVINCI_ABCR_RSETUP(0) | DAVINCI_ABCR_RSTROBE(1) | DAVINCI_ABCR_RHOLD(0) | DAVINCI_ABCR_TA(0) | DAVINCI_ABCR_ASIZE_8BIT), - &davinci_emif_regs->ab2cr); /* CS3 */ + &davinci_emif_regs->ab1cr); /* CS2 */ #endif - /* arch number of the board */ - gd->bd->bi_arch_number = MACH_TYPE_EA20; - - /* address of boot parameters */ - gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; - /* * Power on required peripherals * ARM does not have access by default to PSC0 and PSC1 @@ -150,7 +239,7 @@ int board_init(void) writel(readl(&davinci_syscfg_regs->suspsrc) & ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C | DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 | - DAVINCI_SYSCFG_SUSPSRC_UART2), + DAVINCI_SYSCFG_SUSPSRC_UART0), &davinci_syscfg_regs->suspsrc); /* configure pinmux settings */ @@ -167,10 +256,60 @@ int board_init(void) /* enable the console UART */ writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | DAVINCI_UART_PWREMU_MGMT_UTRST), - &davinci_uart2_ctrl_regs->pwremu_mgmt); + &davinci_uart0_ctrl_regs->pwremu_mgmt); + + /* + * Reconfigure the LCDC priority to the highest to ensure that + * the throughput/latency requirements for the LCDC are met. + */ + writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff, + &davinci_syscfg_regs->mstpri[2]); + + /* Set LCD_B_PWR low to power up LCD Backlight*/ + writel((readl(&gpio6_base->set_data) | (1 << 6)), + &gpio6_base->set_data); + + /* Set DISP_ON low to disable LCD output*/ + writel((readl(&gpio6_base->set_data) | (1 << 1)), + &gpio6_base->set_data); + + return 0; +} + +int board_init(void) +{ + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_EA20; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + da8xx_video_init(&lcd_panel, 16); + + return 0; +} + +#ifdef BOARD_LATE_INIT + +int board_late_init(void) +{ + struct davinci_gpio *gpio8_base = + (struct davinci_gpio *)DAVINCI_GPIO_BANK8; + + /* PinMux for HALTEN */ + if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0) + return 1; + + /* Set HALTEN to high */ + writel((readl(&gpio8_base->set_data) | (1 << 6)), + &gpio8_base->set_data); + writel((readl(&gpio8_base->dir) & ~(1 << 6)), &gpio8_base->dir); + + setenv("stdout", "serial"); return 0; } +#endif /* BOARD_LATE_INIT */ #ifdef CONFIG_DRIVER_TI_EMAC |
