From 0bc4684f89e927c80c5af66ff4d223e89a8425c1 Mon Sep 17 00:00:00 2001 From: Felix Held Date: Tue, 23 Nov 2021 10:19:28 +0100 Subject: soc/amd/stoneyridge: use SOC_AMD_COMMON_BLOCK_ACPI_GPIO Stoneyridge uses the same GPIO bank peripheral as Picasso and Cezanne so we can use the common AMD SoC GPIO ACPI code. TEST=none Signed-off-by: Felix Held Change-Id: Ifa1fc923cd5b779765917b171b5a7222f18a176a Reviewed-on: https://review.coreboot.org/c/coreboot/+/59596 Tested-by: build bot (Jenkins) Reviewed-by: Marshall Dawson --- src/soc/amd/stoneyridge/Kconfig | 1 + src/soc/amd/stoneyridge/acpi.c | 100 ---------------------------------------- 2 files changed, 1 insertion(+), 100 deletions(-) (limited to 'src') diff --git a/src/soc/amd/stoneyridge/Kconfig b/src/soc/amd/stoneyridge/Kconfig index 50e66b0a79..769a61533b 100644 --- a/src/soc/amd/stoneyridge/Kconfig +++ b/src/soc/amd/stoneyridge/Kconfig @@ -24,6 +24,7 @@ config CPU_SPECIFIC_OPTIONS select SOC_AMD_PI select SOC_AMD_COMMON select SOC_AMD_COMMON_BLOCK_ACPI + select SOC_AMD_COMMON_BLOCK_ACPI_GPIO select SOC_AMD_COMMON_BLOCK_ACPIMMIO select SOC_AMD_COMMON_BLOCK_ACPIMMIO_BIOSRAM select SOC_AMD_COMMON_BLOCK_AOAC diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c index 918ba5e6d7..b2cc20b77d 100644 --- a/src/soc/amd/stoneyridge/acpi.c +++ b/src/soc/amd/stoneyridge/acpi.c @@ -157,103 +157,3 @@ void generate_cpu_entries(const struct device *device) acpigen_write_name_integer("PCNT", cores); acpigen_pop_len(); } - -static void acpigen_soc_get_gpio_in_local5(uintptr_t addr) -{ - /* - * Store (\_SB.GPR2 (addr), Local5) - * \_SB.GPR2 is used to read control byte 2 from control register. - * / It is defined in gpio_lib.asl. - */ - acpigen_write_store(); - acpigen_emit_namestring("\\_SB.GPR2"); - acpigen_write_integer(addr); - acpigen_emit_byte(LOCAL5_OP); -} - -static int acpigen_soc_get_gpio_val(unsigned int gpio_num, uint32_t mask) -{ - if (gpio_num >= SOC_GPIO_TOTAL_PINS) { - printk(BIOS_WARNING, "Warning: Pin %d should be smaller than" - " %d\n", gpio_num, SOC_GPIO_TOTAL_PINS); - return -1; - } - uintptr_t addr = gpio_get_address(gpio_num); - - acpigen_soc_get_gpio_in_local5(addr); - - /* If (And (Local5, mask)) */ - acpigen_write_if_and(LOCAL5_OP, mask); - - /* Store (One, Local0) */ - acpigen_write_store_ops(ONE_OP, LOCAL0_OP); - - /* Else */ - acpigen_write_else(); - - /* Store (Zero, Local0) */ - acpigen_write_store_ops(ZERO_OP, LOCAL0_OP); - - acpigen_pop_len(); /* Else */ - - return 0; -} - -static int acpigen_soc_set_gpio_val(unsigned int gpio_num, uint32_t val) -{ - if (gpio_num >= SOC_GPIO_TOTAL_PINS) { - printk(BIOS_WARNING, "Warning: Pin %d should be smaller than" - " %d\n", gpio_num, SOC_GPIO_TOTAL_PINS); - return -1; - } - uintptr_t addr = gpio_get_address(gpio_num); - - /* Store (0x40, Local0) */ - acpigen_write_store(); - acpigen_write_integer(GPIO_PIN_OUT); - acpigen_emit_byte(LOCAL0_OP); - - acpigen_soc_get_gpio_in_local5(addr); - - if (val) { - /* Or (Local5, GPIO_PIN_OUT, Local5) */ - acpigen_write_or(LOCAL5_OP, LOCAL0_OP, LOCAL5_OP); - } else { - /* Not (GPIO_PIN_OUT, Local6) */ - acpigen_write_not(LOCAL0_OP, LOCAL6_OP); - - /* And (Local5, Local6, Local5) */ - acpigen_write_and(LOCAL5_OP, LOCAL6_OP, LOCAL5_OP); - } - - /* - * SB.GPW2 (addr, Local5) - * \_SB.GPW2 is used to write control byte in control register - * / byte 2. It is defined in gpio_lib.asl. - */ - acpigen_emit_namestring("\\_SB.GPW2"); - acpigen_write_integer(addr); - acpigen_emit_byte(LOCAL5_OP); - - return 0; -} - -int acpigen_soc_read_rx_gpio(unsigned int gpio_num) -{ - return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_IN); -} - -int acpigen_soc_get_tx_gpio(unsigned int gpio_num) -{ - return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_OUT); -} - -int acpigen_soc_set_tx_gpio(unsigned int gpio_num) -{ - return acpigen_soc_set_gpio_val(gpio_num, 1); -} - -int acpigen_soc_clear_tx_gpio(unsigned int gpio_num) -{ - return acpigen_soc_set_gpio_val(gpio_num, 0); -} -- cgit v1.2.3