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/atmel/atngw100/atngw100.c | 15 ++--- board/atmel/atstk1000/atstk1000.c | 12 ++-- board/earthlcd/favr-32-ezkit/favr-32-ezkit.c | 10 ++-- board/mimc/mimc200/mimc200.c | 88 +++++++--------------------- board/miromico/hammerhead/hammerhead.c | 12 ++-- 5 files changed, 46 insertions(+), 91 deletions(-) (limited to 'board') diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c index 7f3e48541d..03544aa211 100644 --- a/board/atmel/atngw100/atngw100.c +++ b/board/atmel/atngw100/atngw100.c @@ -26,6 +26,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -50,18 +51,18 @@ 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(); + portmux_enable_ebi(16, 23, 0, PORTMUX_DRIVE_HIGH); + portmux_enable_usart1(PORTMUX_DRIVE_MIN); #if defined(CONFIG_MACB) - gpio_enable_macb0(); - gpio_enable_macb1(); + 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 #if defined(CONFIG_ATMEL_SPI) - gpio_enable_spi0(1 << 0); + portmux_enable_spi0(1 << 0, PORTMUX_DRIVE_LOW); #endif return 0; @@ -108,7 +109,7 @@ int board_eth_init(bd_t *bi) #ifdef CONFIG_ATMEL_SPI #include -#define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA3 +#define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA(3) int spi_cs_is_valid(unsigned int bus, unsigned int cs) { diff --git a/board/atmel/atstk1000/atstk1000.c b/board/atmel/atstk1000/atstk1000.c index 915b1c3539..cc400a92f8 100644 --- a/board/atmel/atstk1000/atstk1000.c +++ b/board/atmel/atstk1000/atstk1000.c @@ -24,8 +24,8 @@ #include #include #include -#include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -77,14 +77,14 @@ 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(); + portmux_enable_ebi(sdram_config.data_bits, 23, 0, PORTMUX_DRIVE_HIGH); + portmux_enable_usart1(PORTMUX_DRIVE_MIN); #if defined(CONFIG_MACB) - gpio_enable_macb0(); - gpio_enable_macb1(); + portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW); + portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW); #endif #if defined(CONFIG_MMC) - gpio_enable_mmci(); + portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW); #endif return 0; diff --git a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c index da69e754f9..b2ddd089d7 100644 --- a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c +++ b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c @@ -22,8 +22,8 @@ #include #include #include -#include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -49,13 +49,13 @@ 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_usart3(); + portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH); + portmux_enable_usart3(PORTMUX_DRIVE_MIN); #if defined(CONFIG_MACB) - gpio_enable_macb0(); + portmux_enable_macb0(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; diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c index 4ece11ac87..4da467860e 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; diff --git a/board/miromico/hammerhead/hammerhead.c b/board/miromico/hammerhead/hammerhead.c index 738ece2fe3..3d6cf9b28b 100644 --- a/board/miromico/hammerhead/hammerhead.c +++ b/board/miromico/hammerhead/hammerhead.c @@ -29,9 +29,9 @@ #include #include #include -#include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -65,14 +65,14 @@ 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(); + portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH); + portmux_enable_usart1(PORTMUX_DRIVE_MIN); #if defined(CONFIG_MACB) - gpio_enable_macb0(); + portmux_enable_macb0(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; } @@ -107,7 +107,7 @@ void gclk_init(void) /* Hammerhead boards uses GCLK3 as 25MHz output to ethernet PHY */ /* Select GCLK3 peripheral function */ - gpio_select_periph_A(GPIO_PIN_PB29, 0); + portmux_select_peripheral(PORTMUX_PORT_B, 1 << 29, PORTMUX_FUNC_A, 0); /* Enable GCLK3 with no input divider, from OSC0 (crystal) */ sm_writel(PM_GCCTRL(3), SM_BIT(CEN)); -- cgit v1.2.3