diff options
Diffstat (limited to 'board/st/stm32f746-disco/stm32f746-disco.c')
| -rw-r--r-- | board/st/stm32f746-disco/stm32f746-disco.c | 299 |
1 files changed, 63 insertions, 236 deletions
diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c index fdad8d13a7..dc3a9dcade 100644 --- a/board/st/stm32f746-disco/stm32f746-disco.c +++ b/board/st/stm32f746-disco/stm32f746-disco.c @@ -6,268 +6,83 @@ */ #include <common.h> +#include <dm.h> +#include <ram.h> #include <asm/io.h> #include <asm/armv7m.h> #include <asm/arch/stm32.h> #include <asm/arch/gpio.h> -#include <asm/arch/fmc.h> #include <dm/platdata.h> #include <dm/platform_data/serial_stm32x7.h> #include <asm/arch/stm32_periph.h> #include <asm/arch/stm32_defs.h> #include <asm/arch/syscfg.h> +#include <asm/gpio.h> DECLARE_GLOBAL_DATA_PTR; -const struct stm32_gpio_ctl gpio_ctl_gpout = { - .mode = STM32_GPIO_MODE_OUT, - .otype = STM32_GPIO_OTYPE_PP, - .speed = STM32_GPIO_SPEED_50M, - .pupd = STM32_GPIO_PUPD_NO, - .af = STM32_GPIO_AF0 -}; - -const struct stm32_gpio_ctl gpio_ctl_fmc = { - .mode = STM32_GPIO_MODE_AF, - .otype = STM32_GPIO_OTYPE_PP, - .speed = STM32_GPIO_SPEED_100M, - .pupd = STM32_GPIO_PUPD_NO, - .af = STM32_GPIO_AF12 -}; - -static const struct stm32_gpio_dsc ext_ram_fmc_gpio[] = { - /* Chip is LQFP144, see DM00077036.pdf for details */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_10}, /* 79, FMC_D15 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_9}, /* 78, FMC_D14 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_8}, /* 77, FMC_D13 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_15}, /* 68, FMC_D12 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_14}, /* 67, FMC_D11 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_13}, /* 66, FMC_D10 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_12}, /* 65, FMC_D9 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_11}, /* 64, FMC_D8 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_10}, /* 63, FMC_D7 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_9}, /* 60, FMC_D6 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_8}, /* 59, FMC_D5 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_7}, /* 58, FMC_D4 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_1}, /* 115, FMC_D3 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_0}, /* 114, FMC_D2 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_15}, /* 86, FMC_D1 */ - {STM32_GPIO_PORT_D, STM32_GPIO_PIN_14}, /* 85, FMC_D0 */ - - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_1}, /* 142, FMC_NBL1 */ - {STM32_GPIO_PORT_E, STM32_GPIO_PIN_0}, /* 141, FMC_NBL0 */ - - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_5}, /* 90, FMC_A15, BA1 */ - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_4}, /* 89, FMC_A14, BA0 */ - - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_1}, /* 57, FMC_A11 */ - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_0}, /* 56, FMC_A10 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_15}, /* 55, FMC_A9 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_14}, /* 54, FMC_A8 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_13}, /* 53, FMC_A7 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_12}, /* 50, FMC_A6 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_5}, /* 15, FMC_A5 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_4}, /* 14, FMC_A4 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_3}, /* 13, FMC_A3 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_2}, /* 12, FMC_A2 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_1}, /* 11, FMC_A1 */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_0}, /* 10, FMC_A0 */ - - {STM32_GPIO_PORT_H, STM32_GPIO_PIN_3}, /* 136, SDRAM_NE */ - {STM32_GPIO_PORT_F, STM32_GPIO_PIN_11}, /* 49, SDRAM_NRAS */ - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_15}, /* 132, SDRAM_NCAS */ - {STM32_GPIO_PORT_H, STM32_GPIO_PIN_5}, /* 26, SDRAM_NWE */ - {STM32_GPIO_PORT_C, STM32_GPIO_PIN_3}, /* 135, SDRAM_CKE */ - - {STM32_GPIO_PORT_G, STM32_GPIO_PIN_8}, /* 93, SDRAM_CLK */ -}; - -static int fmc_setup_gpio(void) +int get_memory_base_size(fdt_addr_t *mr_base, fdt_addr_t *mr_size) { - int rv = 0; - int i; - - clock_setup(GPIO_B_CLOCK_CFG); - clock_setup(GPIO_C_CLOCK_CFG); - clock_setup(GPIO_D_CLOCK_CFG); - clock_setup(GPIO_E_CLOCK_CFG); - clock_setup(GPIO_F_CLOCK_CFG); - clock_setup(GPIO_G_CLOCK_CFG); - clock_setup(GPIO_H_CLOCK_CFG); + int mr_node; - for (i = 0; i < ARRAY_SIZE(ext_ram_fmc_gpio); i++) { - rv = stm32_gpio_config(&ext_ram_fmc_gpio[i], - &gpio_ctl_fmc); - if (rv) - goto out; - } + mr_node = fdt_path_offset(gd->fdt_blob, "/memory"); + if (mr_node < 0) + return mr_node; + *mr_base = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, mr_node, + "reg", 0, mr_size, false); + debug("mr_base = %lx, mr_size= %lx\n", *mr_base, *mr_size); -out: - return rv; -} - -static inline u32 _ns2clk(u32 ns, u32 freq) -{ - u32 tmp = freq/1000000; - return (tmp * ns) / 1000; + return 0; } - -#define NS2CLK(ns) (_ns2clk(ns, freq)) - -/* - * Following are timings for IS42S16400J, from corresponding datasheet - */ -#define SDRAM_CAS 3 /* 3 cycles */ -#define SDRAM_NB 1 /* Number of banks */ -#define SDRAM_MWID 1 /* 16 bit memory */ - -#define SDRAM_NR 0x1 /* 12-bit row */ -#define SDRAM_NC 0x0 /* 8-bit col */ -#define SDRAM_RBURST 0x1 /* Single read requests always as bursts */ -#define SDRAM_RPIPE 0x0 /* No HCLK clock cycle delay */ - -#define SDRAM_TRRD NS2CLK(12) -#define SDRAM_TRCD NS2CLK(18) -#define SDRAM_TRP NS2CLK(18) -#define SDRAM_TRAS NS2CLK(42) -#define SDRAM_TRC NS2CLK(60) -#define SDRAM_TRFC NS2CLK(60) -#define SDRAM_TCDL (1 - 1) -#define SDRAM_TRDL NS2CLK(12) -#define SDRAM_TBDL (1 - 1) -#define SDRAM_TREF (NS2CLK(64000000 / 8192) - 20) -#define SDRAM_TCCD (1 - 1) - -#define SDRAM_TXSR SDRAM_TRFC /* Row cycle time after precharge */ -#define SDRAM_TMRD 1 /* Page 10, Mode Register Set */ - - -/* Last data in to row precharge, need also comply ineq on page 1648 */ -#define SDRAM_TWR max(\ - (int)max((int)SDRAM_TRDL, (int)(SDRAM_TRAS - SDRAM_TRCD)), \ - (int)(SDRAM_TRC - SDRAM_TRCD - SDRAM_TRP)\ -) - - -#define SDRAM_MODE_BL_SHIFT 0 -#define SDRAM_MODE_CAS_SHIFT 4 -#define SDRAM_MODE_BL 0 -#define SDRAM_MODE_CAS SDRAM_CAS - int dram_init(void) { - u32 freq; + struct udevice *dev; int rv; + fdt_addr_t mr_base, mr_size; - rv = fmc_setup_gpio(); - if (rv) + rv = uclass_get_device(UCLASS_RAM, 0, &dev); + if (rv) { + debug("DRAM init failed: %d\n", rv); return rv; + } - clock_setup(FMC_CLOCK_CFG); - - /* - * Get frequency for NS2CLK calculation. - */ - freq = clock_get(CLOCK_AHB) / CONFIG_SYS_RAM_FREQ_DIV; - - writel( - CONFIG_SYS_RAM_FREQ_DIV << FMC_SDCR_SDCLK_SHIFT - | SDRAM_CAS << FMC_SDCR_CAS_SHIFT - | SDRAM_NB << FMC_SDCR_NB_SHIFT - | SDRAM_MWID << FMC_SDCR_MWID_SHIFT - | SDRAM_NR << FMC_SDCR_NR_SHIFT - | SDRAM_NC << FMC_SDCR_NC_SHIFT - | SDRAM_RPIPE << FMC_SDCR_RPIPE_SHIFT - | SDRAM_RBURST << FMC_SDCR_RBURST_SHIFT, - &STM32_SDRAM_FMC->sdcr1); - - writel( - SDRAM_TRCD << FMC_SDTR_TRCD_SHIFT - | SDRAM_TRP << FMC_SDTR_TRP_SHIFT - | SDRAM_TWR << FMC_SDTR_TWR_SHIFT - | SDRAM_TRC << FMC_SDTR_TRC_SHIFT - | SDRAM_TRAS << FMC_SDTR_TRAS_SHIFT - | SDRAM_TXSR << FMC_SDTR_TXSR_SHIFT - | SDRAM_TMRD << FMC_SDTR_TMRD_SHIFT, - &STM32_SDRAM_FMC->sdtr1); - - writel(FMC_SDCMR_BANK_1 | FMC_SDCMR_MODE_START_CLOCK, - &STM32_SDRAM_FMC->sdcmr); - - udelay(200); /* 200 us delay, page 10, "Power-Up" */ - FMC_BUSY_WAIT(); - - writel(FMC_SDCMR_BANK_1 | FMC_SDCMR_MODE_PRECHARGE, - &STM32_SDRAM_FMC->sdcmr); - - udelay(100); - FMC_BUSY_WAIT(); - - writel((FMC_SDCMR_BANK_1 | FMC_SDCMR_MODE_AUTOREFRESH - | 7 << FMC_SDCMR_NRFS_SHIFT), &STM32_SDRAM_FMC->sdcmr); - - udelay(100); - FMC_BUSY_WAIT(); - - writel(FMC_SDCMR_BANK_1 | (SDRAM_MODE_BL << SDRAM_MODE_BL_SHIFT - | SDRAM_MODE_CAS << SDRAM_MODE_CAS_SHIFT) - << FMC_SDCMR_MODE_REGISTER_SHIFT | FMC_SDCMR_MODE_WRITE_MODE, - &STM32_SDRAM_FMC->sdcmr); - - udelay(100); - - FMC_BUSY_WAIT(); - - writel(FMC_SDCMR_BANK_1 | FMC_SDCMR_MODE_NORMAL, - &STM32_SDRAM_FMC->sdcmr); - - FMC_BUSY_WAIT(); + rv = get_memory_base_size(&mr_base, &mr_size); + if (rv) + return rv; + gd->ram_size = mr_size; + gd->ram_top = mr_base; - /* Refresh timer */ - writel(SDRAM_TREF, &STM32_SDRAM_FMC->sdrtr); + return rv; +} +int dram_init_banksize(void) +{ + fdt_addr_t mr_base, mr_size; + get_memory_base_size(&mr_base, &mr_size); /* * Fill in global info with description of SRAM configuration */ - gd->bd->bi_dram[0].start = CONFIG_SYS_RAM_BASE; - gd->bd->bi_dram[0].size = CONFIG_SYS_RAM_SIZE; - - gd->ram_size = CONFIG_SYS_RAM_SIZE; - - return rv; -} + gd->bd->bi_dram[0].start = mr_base; + gd->bd->bi_dram[0].size = mr_size; -int uart_setup_gpio(void) -{ - clock_setup(GPIO_A_CLOCK_CFG); - clock_setup(GPIO_B_CLOCK_CFG); return 0; } #ifdef CONFIG_ETH_DESIGNWARE - static int stmmac_setup(void) { clock_setup(SYSCFG_CLOCK_CFG); /* Set >RMII mode */ STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL; - - clock_setup(GPIO_A_CLOCK_CFG); - clock_setup(GPIO_C_CLOCK_CFG); - clock_setup(GPIO_G_CLOCK_CFG); clock_setup(STMMAC_CLOCK_CFG); return 0; } -#endif - -#ifdef CONFIG_STM32_QSPI -static int qspi_setup(void) +int board_early_init_f(void) { - clock_setup(GPIO_B_CLOCK_CFG); - clock_setup(GPIO_D_CLOCK_CFG); - clock_setup(GPIO_E_CLOCK_CFG); + stmmac_setup(); + return 0; } #endif @@ -277,32 +92,44 @@ u32 get_board_rev(void) return 0; } -int board_early_init_f(void) +int board_late_init(void) { - int res; + struct gpio_desc gpio = {}; + int node; - res = uart_setup_gpio(); - if (res) - return res; + node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1"); + if (node < 0) + return -1; -#ifdef CONFIG_ETH_DESIGNWARE - res = stmmac_setup(); - if (res) - return res; -#endif + gpio_request_by_name_nodev(gd->fdt_blob, node, "led-gpio", 0, &gpio, + GPIOD_IS_OUT); -#ifdef CONFIG_STM32_QSPI - res = qspi_setup(); - if (res) - return res; -#endif + if (dm_gpio_is_valid(&gpio)) { + dm_gpio_set_value(&gpio, 0); + mdelay(10); + dm_gpio_set_value(&gpio, 1); + } + + /* read button 1*/ + node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1"); + if (node < 0) + return -1; + + gpio_request_by_name_nodev(gd->fdt_blob, node, "button-gpio", 0, &gpio, + GPIOD_IS_IN); + + if (dm_gpio_is_valid(&gpio)) { + if (dm_gpio_get_value(&gpio)) + puts("usr button is at HIGH LEVEL\n"); + else + puts("usr button is at LOW LEVEL\n"); + } return 0; } int board_init(void) { - gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; - + gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100; return 0; } |