From 6802dc8abe250abbe1b89532a9895b7c5d3f77f7 Mon Sep 17 00:00:00 2001 From: David Hendricks Date: Fri, 15 Feb 2013 16:18:28 -0800 Subject: armv7/snow: add CPU and RAM resources via allocator This adds necessary device operations to add CPU and RAM resources. Change-Id: Ief8f66627ef37f4fa786bfc3f7899529d3e5b037 Signed-off-by: David Hendricks Reviewed-on: http://review.coreboot.org/2419 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Stefan Reinauer --- src/cpu/samsung/exynos5250/Makefile.inc | 1 + src/cpu/samsung/exynos5250/cpu.c | 61 +++++++++++++++++++++++++++++++++ 2 files changed, 62 insertions(+) create mode 100644 src/cpu/samsung/exynos5250/cpu.c (limited to 'src/cpu/samsung') diff --git a/src/cpu/samsung/exynos5250/Makefile.inc b/src/cpu/samsung/exynos5250/Makefile.inc index 10c071a702..c9a9341641 100644 --- a/src/cpu/samsung/exynos5250/Makefile.inc +++ b/src/cpu/samsung/exynos5250/Makefile.inc @@ -27,6 +27,7 @@ ramstage-y += pinmux.c ramstage-y += power.c ramstage-y += soc.c ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c +ramstage-y += cpu.c #ramstage-$(CONFIG_SATA_AHCI) += sata.c diff --git a/src/cpu/samsung/exynos5250/cpu.c b/src/cpu/samsung/exynos5250/cpu.c new file mode 100644 index 0000000000..0a49e1edc9 --- /dev/null +++ b/src/cpu/samsung/exynos5250/cpu.c @@ -0,0 +1,61 @@ +#include +#include + +#define RAM_BASE ((CONFIG_SYS_SDRAM_BASE >> 10) + (CONFIG_COREBOOT_ROMSIZE_KB)) +#define RAM_SIZE (((CONFIG_DRAM_SIZE_MB << 10UL) * CONFIG_NR_DRAM_BANKS) \ + - CONFIG_COREBOOT_ROMSIZE_KB) + +static void domain_read_resources(device_t dev) +{ + ram_resource(dev, 0, RAM_BASE, RAM_SIZE); +} + +static void domain_set_resources(device_t dev) +{ + assign_resources(dev->link_list); +} + +static unsigned int domain_scan_bus(device_t dev, unsigned int max) +{ + return max; +} + + +static struct device_operations domain_ops = { + .read_resources = domain_read_resources, + .set_resources = domain_set_resources, + .enable_resources = NULL, + .init = NULL, + .scan_bus = domain_scan_bus, +}; + +static void cpu_init(device_t dev) +{ +} + +static void cpu_noop(device_t dev) +{ +} + +static struct device_operations cpu_ops = { + .read_resources = cpu_noop, + .set_resources = cpu_noop, + .enable_resources = cpu_noop, + .init = cpu_init, + .scan_bus = 0, +}; + +static void enable_dev(device_t dev) +{ + /* Set the operations if it is a special bus type */ + if (dev->path.type == DEVICE_PATH_DOMAIN) { + dev->ops = &domain_ops; + } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { + dev->ops = &cpu_ops; + } +} + +struct chip_operations cpu_samsung_exynos5250_ops = { + CHIP_NAME("CPU Samsung Exynos 5250") + .enable_dev = enable_dev, +}; -- cgit v1.2.3