diff options
Diffstat (limited to 'board/atmel/at91cap9adk/at91cap9adk.c')
| -rw-r--r-- | board/atmel/at91cap9adk/at91cap9adk.c | 107 |
1 files changed, 104 insertions, 3 deletions
diff --git a/board/atmel/at91cap9adk/at91cap9adk.c b/board/atmel/at91cap9adk/at91cap9adk.c index 5de52b9..c5082a0 100644 --- a/board/atmel/at91cap9adk/at91cap9adk.c +++ b/board/atmel/at91cap9adk/at91cap9adk.c @@ -30,6 +30,8 @@ #include <asm/arch/at91_rstc.h> #include <asm/arch/gpio.h> #include <asm/arch/io.h> +#include <lcd.h> +#include <atmel_lcdc.h> #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) #include <net.h> #endif @@ -70,6 +72,33 @@ static void at91cap9_serial_hw_init(void) #endif } +static void at91cap9_slowclock_hw_init(void) +{ + /* + * On AT91CAP9 revC CPUs, the slow clock can be based on an + * internal impreciseRC oscillator or an external 32kHz oscillator. + * Switch to the latter. + */ +#define ARCH_ID_AT91CAP9_REVB 0x399 +#define ARCH_ID_AT91CAP9_REVC 0x601 + if (at91_sys_read(AT91_PMC_VER) == ARCH_ID_AT91CAP9_REVC) { + unsigned i, tmp = at91_sys_read(AT91_SCKCR); + if ((tmp & AT91CAP9_SCKCR_OSCSEL) == AT91CAP9_SCKCR_OSCSEL_RC) { + extern void timer_init(void); + timer_init(); + tmp |= AT91CAP9_SCKCR_OSC32EN; + at91_sys_write(AT91_SCKCR, tmp); + for (i = 0; i < 1200; i++) + udelay(1000); + tmp |= AT91CAP9_SCKCR_OSCSEL_32; + at91_sys_write(AT91_SCKCR, tmp); + udelay(200); + tmp &= ~AT91CAP9_SCKCR_RCEN; + at91_sys_write(AT91_SCKCR, tmp); + } + } +} + static void at91cap9_nor_hw_init(void) { unsigned long csa; @@ -116,7 +145,12 @@ static void at91cap9_nand_hw_init(void) at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | - AT91_SMC_DBW_8 | AT91_SMC_TDF_(1)); +#ifdef CFG_NAND_DBW_16 + AT91_SMC_DBW_16 | +#else /* CFG_NAND_DBW_8 */ + AT91_SMC_DBW_8 | +#endif + AT91_SMC_TDF_(1)); at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD); @@ -162,7 +196,7 @@ static void at91cap9_macb_hw_init(void) /* Need to reset PHY -> 500ms reset */ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | - AT91_RSTC_ERSTL | (0x0D << 8) | + (AT91_RSTC_ERSTL & (0x0D << 8)) | AT91_RSTC_URSTEN); at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); @@ -170,6 +204,11 @@ static void at91cap9_macb_hw_init(void) /* Wait for end hardware reset */ while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); + /* Restore NRST value */ + at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | + (AT91_RSTC_ERSTL & (0x0 << 8)) | + AT91_RSTC_URSTEN); + /* Re-enable pull-up */ writel(pin_to_mask(AT91_PIN_PB22) | pin_to_mask(AT91_PIN_PB25) | @@ -228,6 +267,65 @@ static void at91cap9_uhp_hw_init(void) } #endif +#ifdef CONFIG_LCD +vidinfo_t panel_info = { + vl_col: 240, + vl_row: 320, + vl_clk: 4965000, + vl_sync: ATMEL_LCDC_INVLINE_INVERTED | + ATMEL_LCDC_INVFRAME_INVERTED, + vl_bpix: 3, + vl_tft: 1, + vl_hsync_len: 5, + vl_left_margin: 1, + vl_right_margin:33, + vl_vsync_len: 1, + vl_upper_margin:1, + vl_lower_margin:0, + mmio: AT91CAP9_LCDC_BASE, +}; + +void lcd_enable(void) +{ + at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */ +} + +void lcd_disable(void) +{ + at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */ +} + +static void at91cap9_lcd_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */ + at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */ + at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */ + at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */ + at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */ + at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */ + at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */ + at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */ + at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */ + at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */ + at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */ + at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */ + at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */ + at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */ + at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */ + at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */ + at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */ + at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */ + at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */ + at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */ + at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */ + at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */ + + at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_LCDC); + + gd->fb_base = 0; +} +#endif + int board_init(void) { /* Enable Ctrlc */ @@ -239,6 +337,7 @@ int board_init(void) gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; at91cap9_serial_hw_init(); + at91cap9_slowclock_hw_init(); at91cap9_nor_hw_init(); #ifdef CONFIG_CMD_NAND at91cap9_nand_hw_init(); @@ -252,7 +351,9 @@ int board_init(void) #ifdef CONFIG_USB_OHCI_NEW at91cap9_uhp_hw_init(); #endif - +#ifdef CONFIG_LCD + at91cap9_lcd_hw_init(); +#endif return 0; } |