diff options
author | Angel Pons <th3fanbus@gmail.com> | 2020-10-23 21:37:21 +0200 |
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committer | Angel Pons <th3fanbus@gmail.com> | 2020-10-30 00:45:51 +0000 |
commit | c200e8c7cdebed98860a771888efbf998c5912b3 (patch) | |
tree | 2a3d0151583646b33a5ba6e518c23e403433be85 /src/soc/intel/broadwell/gpio.c | |
parent | 3cc2c38d50741fffb9193851a4a3b7c636f7cd4d (diff) |
soc/intel/broadwell: Move PCH code into pch subdir
Change-Id: Icb57eb89b4f225298e43ae27970dc1e27fb6e222
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46706
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/broadwell/gpio.c')
-rw-r--r-- | src/soc/intel/broadwell/gpio.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/src/soc/intel/broadwell/gpio.c b/src/soc/intel/broadwell/gpio.c deleted file mode 100644 index ff1f019ce0..0000000000 --- a/src/soc/intel/broadwell/gpio.c +++ /dev/null @@ -1,133 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include <stdint.h> -#include <arch/io.h> -#include <device/device.h> -#include <device/pci.h> -#include <soc/gpio.h> -#include <soc/iomap.h> -#include <soc/pm.h> - -/* - * This function will return a number that indicates which PIRQ - * this GPIO maps to. If this is not a PIRQ capable GPIO then - * it will return -1. The GPIO to PIRQ mapping is not linear. - */ -static int gpio_to_pirq(int gpio) -{ - switch (gpio) { - case 8: return 0; /* PIRQI */ - case 9: return 1; /* PIRQJ */ - case 10: return 2; /* PIRQK */ - case 13: return 3; /* PIRQL */ - case 14: return 4; /* PIRQM */ - case 45: return 5; /* PIRQN */ - case 46: return 6; /* PIRQO */ - case 47: return 7; /* PIRQP */ - case 48: return 8; /* PIRQQ */ - case 49: return 9; /* PIRQR */ - case 50: return 10; /* PIRQS */ - case 51: return 11; /* PIRQT */ - case 52: return 12; /* PIRQU */ - case 53: return 13; /* PIRQV */ - case 54: return 14; /* PIRQW */ - case 55: return 15; /* PIRQX */ - default: return -1; - }; -} - -void init_gpios(const struct gpio_config config[]) -{ - const struct gpio_config *entry; - u32 owner[3] = {0}; - u32 route[3] = {0}; - u32 irqen[3] = {0}; - u32 reset[3] = {0}; - u32 blink = 0; - u16 pirq2apic = 0; - int set, bit, gpio = 0; - - for (entry = config; entry->conf0 != GPIO_LIST_END; entry++, gpio++) { - if (gpio > MAX_GPIO_NUMBER) - break; - - /* Setup Configuration registers 1 and 2 */ - outl(entry->conf0, GPIO_BASE_ADDRESS + GPIO_CONFIG0(gpio)); - outl(entry->conf1, GPIO_BASE_ADDRESS + GPIO_CONFIG1(gpio)); - - /* Determine set and bit based on GPIO number */ - set = gpio >> 5; - bit = gpio % 32; - - /* Apply settings to set specific bits */ - owner[set] |= entry->owner << bit; - route[set] |= entry->route << bit; - irqen[set] |= entry->irqen << bit; - reset[set] |= entry->reset << bit; - - if (set == 0) - blink |= entry->blink << bit; - - /* PIRQ to IO-APIC map */ - if (entry->pirq == GPIO_PIRQ_APIC_ROUTE) { - set = gpio_to_pirq(gpio); - if (set >= 0) - pirq2apic |= 1 << set; - } - } - - for (set = 0; set <= 2; set++) { - outl(owner[set], GPIO_BASE_ADDRESS + GPIO_OWNER(set)); - outl(route[set], GPIO_BASE_ADDRESS + GPIO_ROUTE(set)); - outl(irqen[set], GPIO_BASE_ADDRESS + GPIO_IRQ_IE(set)); - outl(reset[set], GPIO_BASE_ADDRESS + GPIO_RESET(set)); - } - - outl(blink, GPIO_BASE_ADDRESS + GPIO_BLINK); - outl(pirq2apic, GPIO_BASE_ADDRESS + GPIO_PIRQ_APIC_EN); -} - -int get_gpio(int gpio_num) -{ - if (gpio_num > MAX_GPIO_NUMBER) - return 0; - - return !!(inl(GPIO_BASE_ADDRESS + GPIO_CONFIG0(gpio_num)) & GPI_LEVEL); -} - -/* - * get a number comprised of multiple GPIO values. gpio_num_array points to - * the array of gpio pin numbers to scan, terminated by -1. - */ -unsigned int get_gpios(const int *gpio_num_array) -{ - int gpio; - unsigned int bitmask = 1; - unsigned int vector = 0; - - while (bitmask && - ((gpio = *gpio_num_array++) != -1)) { - if (get_gpio(gpio)) - vector |= bitmask; - bitmask <<= 1; - } - return vector; -} - -void set_gpio(int gpio_num, int value) -{ - u32 conf0; - - if (gpio_num > MAX_GPIO_NUMBER) - return; - - conf0 = inl(GPIO_BASE_ADDRESS + GPIO_CONFIG0(gpio_num)); - conf0 &= ~GPO_LEVEL_MASK; - conf0 |= value << GPO_LEVEL_SHIFT; - outl(conf0, GPIO_BASE_ADDRESS + GPIO_CONFIG0(gpio_num)); -} - -int gpio_is_native(int gpio_num) -{ - return !(inl(GPIO_BASE_ADDRESS + GPIO_CONFIG0(gpio_num)) & 1); -} |