From ab0df36fc7db9dda0b786b909f653e279dfeb9cf Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Fri, 29 Aug 2008 21:09:49 +0200 Subject: avr32: refactor the portmux/gpio code - Separate the portmux configuration functionality from the GPIO pin control API. - Separate the controller-specific code from the chip-specific code. - Allow "ganged" port configuration (multiple pins at once). - Add more flexibility to the "canned" peripheral select functions: - Allow using more than 23 address bits, more chip selects, as well as NAND- and CF-specific pins. - Make the MACB SPEED pin optional, and choose between MII/RMII using a parameter instead of an #ifdef. - Make it possible to use other MMC slots than slot 0, and support different MMC/SDCard data bus widths. - Use more reasonable pull-up defaults; floating pins may consume a lot of power. - Get rid of some custom portmux code from the mimc200 board code. The old gpio/portmux API couldn't really handle its requirements, but the new one can. - Add documentation. The end result is slightly smaller code for all boards. Which isn't really the point, but at least it isn't any larger. This has been verified on ATSTK1002 and ATNGW100. I'd appreciate if the board maintainers could help me test this on their boards. In particular, the mimc200 port has lost a lot of code, so I'm hoping Mark can help me out. Signed-off-by: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Cc: Mark Jackson Cc: Alex Raimondi Cc: Julien May Changes since v1: * Enable pullup on NWAIT * Add missing include to portmux-pio.h * Rename CONFIG_PIO2 -> CONFIG_PORTMUX_PIO to match docs --- board/mimc/mimc200/mimc200.c | 88 +++++++++++--------------------------------- 1 file changed, 21 insertions(+), 67 deletions(-) (limited to 'board/mimc/mimc200') diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c index 4ece11a..4da4678 100644 --- a/board/mimc/mimc200/mimc200.c +++ b/board/mimc/mimc200/mimc200.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #define SM_PM_GCCTRL 0x0060 @@ -53,98 +54,51 @@ int board_early_init_f(void) /* Enable SDRAM in the EBI mux */ hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE)); - gpio_enable_ebi(); - gpio_enable_usart1(); - - /* enable higher address lines for larger flash devices */ - gpio_select_periph_A(GPIO_PIN_PE16, 0); /* ADDR23 */ - gpio_select_periph_A(GPIO_PIN_PE17, 0); /* ADDR24 */ - gpio_select_periph_A(GPIO_PIN_PE18, 0); /* ADDR25 */ - - /* enable data flash chip select */ - gpio_select_periph_A(GPIO_PIN_PE25, 0); /* NCS2 */ + /* Enable 26 address bits and NCS2 */ + portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH); + portmux_enable_usart1(PORTMUX_DRIVE_MIN); /* de-assert "force sys reset" pin */ - gpio_set_value(GPIO_PIN_PD15, 1); /* FORCE RESET */ - gpio_select_pio(GPIO_PIN_PD15, GPIOF_OUTPUT); + portmux_select_gpio(PORTMUX_PORT_D, 1 << 15, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); /* init custom i/o */ /* cpu type inputs */ - gpio_select_pio(GPIO_PIN_PE19, 0); - gpio_select_pio(GPIO_PIN_PE20, 0); - gpio_select_pio(GPIO_PIN_PE23, 0); + portmux_select_gpio(PORTMUX_PORT_E, (1 << 19) | (1 << 20) | (1 << 23), + PORTMUX_DIR_INPUT); /* main board type inputs */ - gpio_select_pio(GPIO_PIN_PB19, 0); - gpio_select_pio(GPIO_PIN_PB29, 0); + portmux_select_gpio(PORTMUX_PORT_B, (1 << 19) | (1 << 29), + PORTMUX_DIR_INPUT); /* DEBUG input (use weak pullup) */ - gpio_select_pio(GPIO_PIN_PE21, GPIOF_PULLUP); + portmux_select_gpio(PORTMUX_PORT_E, 1 << 21, + PORTMUX_DIR_INPUT | PORTMUX_PULL_UP); /* are we suppressing the console ? */ - if (gpio_get_value(GPIO_PIN_PE21) == 1) + if (gpio_get_value(GPIO_PIN_PE(21)) == 1) gd->flags |= GD_FLG_SILENT; /* reset phys */ - gpio_select_pio(GPIO_PIN_PE24, 0); - gpio_set_value(GPIO_PIN_PC18, 1); /* PHY RESET */ - gpio_select_pio(GPIO_PIN_PC18, GPIOF_OUTPUT); + portmux_select_gpio(PORTMUX_PORT_E, 1 << 24, PORTMUX_DIR_INPUT); + portmux_select_gpio(PORTMUX_PORT_C, 1 << 18, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); /* GCLK0 - 10MHz clock */ writel(0x00000004, (void *)SM_BASE + SM_PM_GCCTRL); - gpio_select_periph_A(GPIO_PIN_PA30, 0); + portmux_select_peripheral(PORTMUX_PORT_A, 1 << 30, PORTMUX_FUNC_A, 0); udelay(5000); /* release phys reset */ - gpio_set_value(GPIO_PIN_PC18, 0); /* PHY RESET (Release) */ + gpio_set_value(GPIO_PIN_PC(18), 0); /* PHY RESET (Release) */ #if defined(CONFIG_MACB) /* init macb0 pins */ - gpio_select_periph_A(GPIO_PIN_PC3, 0); /* TXD0 */ - gpio_select_periph_A(GPIO_PIN_PC4, 0); /* TXD1 */ - gpio_select_periph_A(GPIO_PIN_PC7, 0); /* TXEN */ - gpio_select_periph_A(GPIO_PIN_PC8, 0); /* TXCK */ - gpio_select_periph_A(GPIO_PIN_PC9, 0); /* RXD0 */ - gpio_select_periph_A(GPIO_PIN_PC10, 0); /* RXD1 */ - gpio_select_periph_A(GPIO_PIN_PC13, 0); /* RXER */ - gpio_select_periph_A(GPIO_PIN_PC15, 0); /* RXDV */ - gpio_select_periph_A(GPIO_PIN_PC16, 0); /* MDC */ - gpio_select_periph_A(GPIO_PIN_PC17, 0); /* MDIO */ -#if !defined(CONFIG_RMII) - gpio_select_periph_A(GPIO_PIN_PC0, 0); /* COL */ - gpio_select_periph_A(GPIO_PIN_PC1, 0); /* CRS */ - gpio_select_periph_A(GPIO_PIN_PC2, 0); /* TXER */ - gpio_select_periph_A(GPIO_PIN_PC5, 0); /* TXD2 */ - gpio_select_periph_A(GPIO_PIN_PC6, 0); /* TXD3 */ - gpio_select_periph_A(GPIO_PIN_PC11, 0); /* RXD2 */ - gpio_select_periph_A(GPIO_PIN_PC12, 0); /* RXD3 */ - gpio_select_periph_A(GPIO_PIN_PC14, 0); /* RXCK */ -#endif - - /* init macb1 pins */ - gpio_select_periph_B(GPIO_PIN_PD13, 0); /* TXD0 */ - gpio_select_periph_B(GPIO_PIN_PD14, 0); /* TXD1 */ - gpio_select_periph_B(GPIO_PIN_PD11, 0); /* TXEN */ - gpio_select_periph_B(GPIO_PIN_PD12, 0); /* TXCK */ - gpio_select_periph_B(GPIO_PIN_PD10, 0); /* RXD0 */ - gpio_select_periph_B(GPIO_PIN_PD6, 0); /* RXD1 */ - gpio_select_periph_B(GPIO_PIN_PD5, 0); /* RXER */ - gpio_select_periph_B(GPIO_PIN_PD4, 0); /* RXDV */ - gpio_select_periph_B(GPIO_PIN_PD3, 0); /* MDC */ - gpio_select_periph_B(GPIO_PIN_PD2, 0); /* MDIO */ -#if !defined(CONFIG_RMII) - gpio_select_periph_B(GPIO_PIN_PC19, 0); /* COL */ - gpio_select_periph_B(GPIO_PIN_PC23, 0); /* CRS */ - gpio_select_periph_B(GPIO_PIN_PC26, 0); /* TXER */ - gpio_select_periph_B(GPIO_PIN_PC27, 0); /* TXD2 */ - gpio_select_periph_B(GPIO_PIN_PC28, 0); /* TXD3 */ - gpio_select_periph_B(GPIO_PIN_PC29, 0); /* RXD2 */ - gpio_select_periph_B(GPIO_PIN_PC30, 0); /* RXD3 */ - gpio_select_periph_B(GPIO_PIN_PC24, 0); /* RXCK */ -#endif + portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH); + portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH); #endif #if defined(CONFIG_MMC) - gpio_enable_mmci(); + portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW); #endif return 0; -- cgit v1.1 From 25e6854d42c11046a468576179b5494f850311b2 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Sun, 31 Aug 2008 18:46:35 +0200 Subject: avr32: use board_early_init_r instead of board_init_info Replace the avr32-specific board_init_info hook by the standard board_early_init_r hook and make it optional. board_early_init_r() runs somewhat earlier than board_init_info used to do, but this isn't a problem for any of the in-tree boards. Signed-off-by: Haavard Skinnemoen --- board/mimc/mimc200/mimc200.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'board/mimc/mimc200') diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c index 4da4678..c30bcb6 100644 --- a/board/mimc/mimc200/mimc200.c +++ b/board/mimc/mimc200/mimc200.c @@ -124,10 +124,11 @@ phys_size_t initdram(int board_type) return actual_size; } -void board_init_info(void) +int board_early_init_r(void) { gd->bd->bi_phy_id[0] = 0x01; gd->bd->bi_phy_id[1] = 0x03; + return 0; } /* SPI chip select control */ -- cgit v1.1