diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst index 2bf5eb7..9e55e60 100644 --- a/docs/about/maintainers.rst +++ b/docs/about/maintainers.rst @@ -217,6 +217,17 @@ :G: `grandpaul`_ :F: docs/plat/rpi3.rst :F: plat/rpi/rpi3/ +:F: plat/rpi/common/ +:F: drivers/rpi3/ +:F: include/drivers/rpi3/ + +Raspberry Pi 4 platform port +---------------------------- +:M: Andre Przywara +:G: `Andre-ARM`_ +:F: docs/plat/rpi4.rst +:F: plat/rpi/rpi4/ +:F: plat/rpi/common/ :F: drivers/rpi3/ :F: include/drivers/rpi3/ diff --git a/drivers/rpi3/gpio/rpi3_gpio.c b/drivers/rpi3/gpio/rpi3_gpio.c index b39808f..f938f56 100644 --- a/drivers/rpi3/gpio/rpi3_gpio.c +++ b/drivers/rpi3/gpio/rpi3_gpio.c @@ -11,7 +11,7 @@ #include #include -static struct rpi3_gpio_params rpi3_gpio_params; +static uintptr_t reg_base; static int rpi3_gpio_get_direction(int gpio); static void rpi3_gpio_set_direction(int gpio, int direction); @@ -43,7 +43,6 @@ int rpi3_gpio_get_select(int gpio) { int ret; - uintptr_t reg_base = rpi3_gpio_params.reg_base; int regN = gpio / 10; int shift = 3 * (gpio % 10); uintptr_t reg_sel = reg_base + RPI3_GPIO_GPFSEL(regN); @@ -69,7 +68,6 @@ */ void rpi3_gpio_set_select(int gpio, int fsel) { - uintptr_t reg_base = rpi3_gpio_params.reg_base; int regN = gpio / 10; int shift = 3 * (gpio % 10); uintptr_t reg_sel = reg_base + RPI3_GPIO_GPFSEL(regN); @@ -106,7 +104,6 @@ static int rpi3_gpio_get_value(int gpio) { - uintptr_t reg_base = rpi3_gpio_params.reg_base; int regN = gpio / 32; int shift = gpio % 32; uintptr_t reg_lev = reg_base + RPI3_GPIO_GPLEV(regN); @@ -119,7 +116,6 @@ static void rpi3_gpio_set_value(int gpio, int value) { - uintptr_t reg_base = rpi3_gpio_params.reg_base; int regN = gpio / 32; int shift = gpio % 32; uintptr_t reg_set = reg_base + RPI3_GPIO_GPSET(regN); @@ -137,7 +133,6 @@ static void rpi3_gpio_set_pull(int gpio, int pull) { - uintptr_t reg_base = rpi3_gpio_params.reg_base; int regN = gpio / 32; int shift = gpio % 32; uintptr_t reg_pud = reg_base + RPI3_GPIO_GPPUD; @@ -161,9 +156,8 @@ mmio_write_32(reg_pud, 0x0); } -void rpi3_gpio_init(struct rpi3_gpio_params *params) +void rpi3_gpio_init(void) { - assert(params != 0); - memcpy(&rpi3_gpio_params, params, sizeof(struct rpi3_gpio_params)); + reg_base = RPI3_GPIO_BASE; gpio_init(&rpi3_gpio_ops); } diff --git a/include/drivers/rpi3/gpio/rpi3_gpio.h b/include/drivers/rpi3/gpio/rpi3_gpio.h index 159a2e0..7bb3ee2 100644 --- a/include/drivers/rpi3/gpio/rpi3_gpio.h +++ b/include/drivers/rpi3/gpio/rpi3_gpio.h @@ -11,11 +11,7 @@ #include #include -struct rpi3_gpio_params { - uintptr_t reg_base; -}; - -void rpi3_gpio_init(struct rpi3_gpio_params *params); +void rpi3_gpio_init(void); int rpi3_gpio_get_select(int gpio); void rpi3_gpio_set_select(int gpio, int fsel); diff --git a/plat/rpi/common/include/rpi_shared.h b/plat/rpi/common/include/rpi_shared.h index de83571..6863438 100644 --- a/plat/rpi/common/include/rpi_shared.h +++ b/plat/rpi/common/include/rpi_shared.h @@ -14,7 +14,7 @@ ******************************************************************************/ /* Utility functions */ -void rpi3_console_init(unsigned int base_clk_rate); +void rpi3_console_init(void); void rpi3_setup_page_tables(uintptr_t total_base, size_t total_size, uintptr_t code_start, uintptr_t code_limit, uintptr_t rodata_start, uintptr_t rodata_limit diff --git a/plat/rpi/common/rpi3_common.c b/plat/rpi/common/rpi3_common.c index 27281f2..ef88bf1 100644 --- a/plat/rpi/common/rpi3_common.c +++ b/plat/rpi/common/rpi3_common.c @@ -13,7 +13,9 @@ #include #include #include +#include #include +#include #include #include @@ -104,16 +106,33 @@ ******************************************************************************/ static console_t rpi3_console; -void rpi3_console_init(unsigned int base_clk_rate) + +static bool rpi3_use_mini_uart(void) +{ + return rpi3_gpio_get_select(14) == RPI3_GPIO_FUNC_ALT5; +} + +void rpi3_console_init(void) { int console_scope = CONSOLE_FLAG_BOOT; -#if RPI3_RUNTIME_UART != -1 - console_scope |= CONSOLE_FLAG_RUNTIME; -#endif - int rc = console_16550_register(PLAT_RPI3_UART_BASE, - base_clk_rate, - PLAT_RPI3_UART_BAUDRATE, - &rpi3_console); + int rc; + + if (RPI3_RUNTIME_UART != -1) + console_scope |= CONSOLE_FLAG_RUNTIME; + + rpi3_gpio_init(); + + if (rpi3_use_mini_uart()) + rc = console_16550_register(PLAT_RPI_MINI_UART_BASE, + 0, + PLAT_RPI_UART_BAUDRATE, + &rpi3_console); + else + rc = console_pl011_register(PLAT_RPI_PL011_UART_BASE, + PLAT_RPI_PL011_UART_CLOCK, + PLAT_RPI_UART_BAUDRATE, + &rpi3_console); + if (rc == 0) { /* * The crash console doesn't use the multi console API, it uses diff --git a/plat/rpi/rpi3/aarch64/plat_helpers.S b/plat/rpi/rpi3/aarch64/plat_helpers.S index 24278bd..ab925b6 100644 --- a/plat/rpi/rpi3/aarch64/plat_helpers.S +++ b/plat/rpi/rpi3/aarch64/plat_helpers.S @@ -9,8 +9,6 @@ #include #include -#include "../include/rpi_hw.h" - .globl plat_crash_console_flush .globl plat_crash_console_init .globl plat_crash_console_putc @@ -133,9 +131,9 @@ * --------------------------------------------- */ func plat_crash_console_init - mov_imm x0, PLAT_RPI3_UART_BASE - mov_imm x1, PLAT_RPI3_UART_CLK_IN_HZ - mov_imm x2, PLAT_RPI3_UART_BAUDRATE + mov_imm x0, PLAT_RPI_MINI_UART_BASE + mov x1, xzr + mov x2, xzr b console_16550_core_init endfunc plat_crash_console_init @@ -147,7 +145,7 @@ * --------------------------------------------- */ func plat_crash_console_putc - mov_imm x1, PLAT_RPI3_UART_BASE + mov_imm x1, PLAT_RPI_MINI_UART_BASE b console_16550_core_putc endfunc plat_crash_console_putc @@ -160,6 +158,6 @@ * --------------------------------------------- */ func plat_crash_console_flush - mov_imm x0, PLAT_RPI3_UART_BASE + mov_imm x0, PLAT_RPI_MINI_UART_BASE b console_16550_core_flush endfunc plat_crash_console_flush diff --git a/plat/rpi/rpi3/include/platform_def.h b/plat/rpi/rpi3/include/platform_def.h index e308f70..9cacd99 100644 --- a/plat/rpi/rpi3/include/platform_def.h +++ b/plat/rpi/rpi3/include/platform_def.h @@ -249,9 +249,10 @@ /* * Serial-related constants. */ -#define PLAT_RPI3_UART_BASE RPI3_MINI_UART_BASE -#define PLAT_RPI3_UART_CLK_IN_HZ RPI3_MINI_UART_CLK_IN_HZ -#define PLAT_RPI3_UART_BAUDRATE ULL(115200) +#define PLAT_RPI_MINI_UART_BASE RPI3_MINI_UART_BASE +#define PLAT_RPI_PL011_UART_BASE RPI3_PL011_UART_BASE +#define PLAT_RPI_PL011_UART_CLOCK RPI3_PL011_UART_CLOCK +#define PLAT_RPI_UART_BAUDRATE ULL(115200) /* * System counter diff --git a/plat/rpi/rpi3/include/rpi_hw.h b/plat/rpi/rpi3/include/rpi_hw.h index 01d5b4a..2aecab3 100644 --- a/plat/rpi/rpi3/include/rpi_hw.h +++ b/plat/rpi/rpi3/include/rpi_hw.h @@ -77,11 +77,15 @@ #define RPI3_RNG_INT_MASK_DISABLE U(0x1) /* - * Serial port (called 'Mini UART' in the BCM docucmentation). + * Serial ports: + * 'Mini UART' in the BCM docucmentation is the 8250 compatible UART. + * There is also a PL011 UART, multiplexed to the same pins. */ #define RPI3_IO_MINI_UART_OFFSET ULL(0x00215040) #define RPI3_MINI_UART_BASE (RPI_IO_BASE + RPI3_IO_MINI_UART_OFFSET) -#define RPI3_MINI_UART_CLK_IN_HZ ULL(500000000) +#define RPI3_IO_PL011_UART_OFFSET ULL(0x00201000) +#define RPI3_PL011_UART_BASE (RPI_IO_BASE + RPI3_IO_PL011_UART_OFFSET) +#define RPI3_PL011_UART_CLOCK ULL(48000000) /* * GPIO controller diff --git a/plat/rpi/rpi3/platform.mk b/plat/rpi/rpi3/platform.mk index a21a770..a5b8904 100644 --- a/plat/rpi/rpi3/platform.mk +++ b/plat/rpi/rpi3/platform.mk @@ -11,6 +11,10 @@ -Iplat/rpi/rpi3/include PLAT_BL_COMMON_SOURCES := drivers/ti/uart/aarch64/16550_console.S \ + drivers/arm/pl011/aarch64/pl011_console.S \ + drivers/gpio/gpio.c \ + drivers/delay_timer/delay_timer.c \ + drivers/rpi3/gpio/rpi3_gpio.c \ plat/rpi/common/rpi3_common.c \ ${XLAT_TABLES_LIB_SRCS} @@ -29,10 +33,7 @@ drivers/io/io_fip.c \ drivers/io/io_memmap.c \ drivers/io/io_storage.c \ - drivers/gpio/gpio.c \ - drivers/delay_timer/delay_timer.c \ drivers/delay_timer/generic_delay_timer.c \ - drivers/rpi3/gpio/rpi3_gpio.c \ drivers/io/io_block.c \ drivers/mmc/mmc.c \ drivers/rpi3/sdhost/rpi3_sdhost.c \ diff --git a/plat/rpi/rpi3/rpi3_bl1_setup.c b/plat/rpi/rpi3/rpi3_bl1_setup.c index dcce76e..3ac30e0 100644 --- a/plat/rpi/rpi3/rpi3_bl1_setup.c +++ b/plat/rpi/rpi3/rpi3_bl1_setup.c @@ -35,7 +35,7 @@ 0x80000000); /* Initialize the console to provide early debug support */ - rpi3_console_init(PLAT_RPI3_UART_CLK_IN_HZ); + rpi3_console_init(); /* Allow BL1 to see the whole Trusted RAM */ bl1_tzram_layout.total_base = BL_RAM_BASE; diff --git a/plat/rpi/rpi3/rpi3_bl2_setup.c b/plat/rpi/rpi3/rpi3_bl2_setup.c index 44827c6..db71817 100644 --- a/plat/rpi/rpi3/rpi3_bl2_setup.c +++ b/plat/rpi/rpi3/rpi3_bl2_setup.c @@ -24,17 +24,6 @@ /* Data structure which holds the extents of the trusted SRAM for BL2 */ static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE); -/* rpi3 GPIO setup function. */ -static void rpi3_gpio_setup(void) -{ - struct rpi3_gpio_params params; - - memset(¶ms, 0, sizeof(struct rpi3_gpio_params)); - params.reg_base = RPI3_GPIO_BASE; - - rpi3_gpio_init(¶ms); -} - /* Data structure which holds the MMC info */ static struct mmc_device_info mmc_info; @@ -62,13 +51,13 @@ meminfo_t *mem_layout = (meminfo_t *) arg1; /* Initialize the console to provide early debug support */ - rpi3_console_init(PLAT_RPI3_UART_CLK_IN_HZ); + rpi3_console_init(); /* Enable arch timer */ generic_delay_timer_init(); /* Setup GPIO driver */ - rpi3_gpio_setup(); + rpi3_gpio_init(); /* Setup the BL2 memory layout */ bl2_tzram_layout = *mem_layout; diff --git a/plat/rpi/rpi3/rpi3_bl31_setup.c b/plat/rpi/rpi3/rpi3_bl31_setup.c index 24a5613..5915753 100644 --- a/plat/rpi/rpi3/rpi3_bl31_setup.c +++ b/plat/rpi/rpi3/rpi3_bl31_setup.c @@ -72,7 +72,7 @@ { /* Initialize the console to provide early debug support */ - rpi3_console_init(PLAT_RPI3_UART_CLK_IN_HZ); + rpi3_console_init(); /* * In debug builds, a special value is passed in 'arg1' to verify diff --git a/plat/rpi/rpi4/aarch64/plat_helpers.S b/plat/rpi/rpi4/aarch64/plat_helpers.S index 083c30e..fac1b20 100644 --- a/plat/rpi/rpi4/aarch64/plat_helpers.S +++ b/plat/rpi/rpi4/aarch64/plat_helpers.S @@ -10,8 +10,6 @@ #include #include -#include "../include/rpi_hw.h" - .globl plat_crash_console_flush .globl plat_crash_console_init .globl plat_crash_console_putc @@ -135,7 +133,7 @@ * --------------------------------------------- */ func plat_crash_console_init - mov_imm x0, PLAT_RPI3_UART_BASE + mov_imm x0, PLAT_RPI_MINI_UART_BASE mov x1, xzr mov x2, xzr b console_16550_core_init @@ -149,7 +147,7 @@ * --------------------------------------------- */ func plat_crash_console_putc - mov_imm x1, PLAT_RPI3_UART_BASE + mov_imm x1, PLAT_RPI_MINI_UART_BASE b console_16550_core_putc endfunc plat_crash_console_putc @@ -162,7 +160,7 @@ * --------------------------------------------- */ func plat_crash_console_flush - mov_imm x0, PLAT_RPI3_UART_BASE + mov_imm x0, PLAT_RPI_MINI_UART_BASE b console_16550_core_flush endfunc plat_crash_console_flush diff --git a/plat/rpi/rpi4/include/platform_def.h b/plat/rpi/rpi4/include/platform_def.h index a9ecdba..6f6bbbe 100644 --- a/plat/rpi/rpi4/include/platform_def.h +++ b/plat/rpi/rpi4/include/platform_def.h @@ -126,8 +126,10 @@ /* * Serial-related constants. */ -#define PLAT_RPI3_UART_BASE RPI3_MINI_UART_BASE -#define PLAT_RPI3_UART_BAUDRATE ULL(115200) +#define PLAT_RPI_MINI_UART_BASE RPI4_MINI_UART_BASE +#define PLAT_RPI_PL011_UART_BASE RPI4_PL011_UART_BASE +#define PLAT_RPI_PL011_UART_CLOCK RPI4_PL011_UART_CLOCK +#define PLAT_RPI_UART_BAUDRATE ULL(115200) /* * System counter diff --git a/plat/rpi/rpi4/include/rpi_hw.h b/plat/rpi/rpi4/include/rpi_hw.h index b1dd4e9..7185106 100644 --- a/plat/rpi/rpi4/include/rpi_hw.h +++ b/plat/rpi/rpi4/include/rpi_hw.h @@ -77,10 +77,15 @@ #define RPI3_RNG_INT_MASK_DISABLE U(0x1) /* - * Serial port (called 'Mini UART' in the Broadcom documentation). + * Serial ports: + * 'Mini UART' in the BCM docucmentation is the 8250 compatible UART. + * There is also a PL011 UART, multiplexed to the same pins. */ -#define RPI3_IO_MINI_UART_OFFSET ULL(0x00215040) -#define RPI3_MINI_UART_BASE (RPI_IO_BASE + RPI3_IO_MINI_UART_OFFSET) +#define RPI4_IO_MINI_UART_OFFSET ULL(0x00215040) +#define RPI4_MINI_UART_BASE (RPI_IO_BASE + RPI4_IO_MINI_UART_OFFSET) +#define RPI4_IO_PL011_UART_OFFSET ULL(0x00201000) +#define RPI4_PL011_UART_BASE (RPI_IO_BASE + RPI4_IO_PL011_UART_OFFSET) +#define RPI4_PL011_UART_CLOCK ULL(48000000) /* * GPIO controller diff --git a/plat/rpi/rpi4/platform.mk b/plat/rpi/rpi4/platform.mk index 2038021..49e78df 100644 --- a/plat/rpi/rpi4/platform.mk +++ b/plat/rpi/rpi4/platform.mk @@ -11,6 +11,7 @@ -Iplat/rpi/rpi4/include PLAT_BL_COMMON_SOURCES := drivers/ti/uart/aarch64/16550_console.S \ + drivers/arm/pl011/aarch64/pl011_console.S \ plat/rpi/common/rpi3_common.c \ ${XLAT_TABLES_LIB_SRCS} @@ -20,6 +21,9 @@ drivers/arm/gic/common/gic_common.c \ drivers/arm/gic/v2/gicv2_helpers.c \ drivers/arm/gic/v2/gicv2_main.c \ + drivers/delay_timer/delay_timer.c \ + drivers/gpio/gpio.c \ + drivers/rpi3/gpio/rpi3_gpio.c \ plat/common/plat_gicv2.c \ plat/rpi/rpi4/rpi4_bl31_setup.c \ plat/rpi/common/rpi3_pm.c \ diff --git a/plat/rpi/rpi4/rpi4_bl31_setup.c b/plat/rpi/rpi4/rpi4_bl31_setup.c index 9e3b539..0a49d81 100644 --- a/plat/rpi/rpi4/rpi4_bl31_setup.c +++ b/plat/rpi/rpi4/rpi4_bl31_setup.c @@ -132,14 +132,8 @@ /* Early GPU firmware revisions need a little break here. */ ldelay(100000); - /* - * Initialize the console to provide early debug support. - * We rely on the GPU firmware to have initialised the UART correctly, - * as the baud base clock rate differs across GPU firmware revisions. - * Providing a base clock of 0 lets the 16550 UART init routine skip - * the initial enablement and baud rate setup. - */ - rpi3_console_init(0); + /* Initialize the console to provide early debug support. */ + rpi3_console_init(); bl33_image_ep_info.pc = plat_get_ns_image_entrypoint(); bl33_image_ep_info.spsr = rpi3_get_spsr_for_bl33_entry();