diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/qualcomm/common/include/soc/mmu_common.h | 1 | ||||
| -rw-r--r-- | src/soc/qualcomm/common/mmu.c | 11 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7180/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7180/carve_out.c | 28 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7180/include/soc/symbols.h | 3 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7180/memlayout.ld | 3 | ||||
| -rw-r--r-- | src/soc/qualcomm/sc7180/soc.c | 5 |
7 files changed, 52 insertions, 1 deletions
diff --git a/src/soc/qualcomm/common/include/soc/mmu_common.h b/src/soc/qualcomm/common/include/soc/mmu_common.h index a38196fada..b6c8aabf4f 100644 --- a/src/soc/qualcomm/common/include/soc/mmu_common.h +++ b/src/soc/qualcomm/common/include/soc/mmu_common.h @@ -14,5 +14,6 @@ static struct region * const ddr_region = (struct region *)_ddr_information; void soc_mmu_dram_config_post_dram_init(void); void qc_mmu_dram_config_post_dram_init(void *ddr_base, size_t ddr_size); +bool soc_modem_carve_out(void **start, void **end); #endif /* _SOC_QUALCOMM_MMU_COMMON_H_ */ diff --git a/src/soc/qualcomm/common/mmu.c b/src/soc/qualcomm/common/mmu.c index 4f606be3e0..ba1173edf9 100644 --- a/src/soc/qualcomm/common/mmu.c +++ b/src/soc/qualcomm/common/mmu.c @@ -4,10 +4,19 @@ #include <soc/mmu.h> #include <soc/mmu_common.h> +__weak bool soc_modem_carve_out(void **start, void **end) { return false; } __weak void soc_mmu_dram_config_post_dram_init(void) { /* no-op */ } void qc_mmu_dram_config_post_dram_init(void *ddr_base, size_t ddr_size) { - mmu_config_range((void *)ddr_base, ddr_size, CACHED_RAM); + void *start = NULL; + void *end = NULL; + + if (!soc_modem_carve_out(&start, &end)) { + mmu_config_range((void *)ddr_base, ddr_size, CACHED_RAM); + } else { + mmu_config_range(ddr_base, start - ddr_base, CACHED_RAM); + mmu_config_range(end, ddr_base + ddr_size - end, CACHED_RAM); + } soc_mmu_dram_config_post_dram_init(); } diff --git a/src/soc/qualcomm/sc7180/Makefile.inc b/src/soc/qualcomm/sc7180/Makefile.inc index 7f52a9a178..07d26529e9 100644 --- a/src/soc/qualcomm/sc7180/Makefile.inc +++ b/src/soc/qualcomm/sc7180/Makefile.inc @@ -45,6 +45,7 @@ romstage-y += qupv3_spi.c romstage-y += gpio.c romstage-y += qupv3_i2c.c romstage-y += clock.c +romstage-y += carve_out.c romstage-$(CONFIG_SC7180_QSPI) += qspi.c romstage-y += qcom_qup_se.c romstage-y += qupv3_config.c @@ -52,6 +53,7 @@ romstage-$(CONFIG_DRIVERS_UART) += qupv3_uart.c ################################################################################ ramstage-y += soc.c +ramstage-y += carve_out.c ramstage-y += timer.c ramstage-y += spi.c ramstage-y += qupv3_spi.c diff --git a/src/soc/qualcomm/sc7180/carve_out.c b/src/soc/qualcomm/sc7180/carve_out.c new file mode 100644 index 0000000000..960b923bcc --- /dev/null +++ b/src/soc/qualcomm/sc7180/carve_out.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <arch/stages.h> +#include <soc/mmu_common.h> +#include <soc/symbols.h> +#include <device/mmio.h> +#include <string.h> + +#define MODEM_ID_LTE 0x004c5445 +#define MODEM_ID_WIFI 0x57494649 + +bool soc_modem_carve_out(void **start, void **end) +{ + uint32_t modem_id = read32(_modem_id); + + switch (modem_id) { + case MODEM_ID_LTE: + *start = _dram_modem_wifi_only; + *end = _edram_modem_extra; + return true; + case MODEM_ID_WIFI: + *start = _dram_modem_wifi_only; + *end = _edram_modem_wifi_only; + return true; + default: + return false; + } +} diff --git a/src/soc/qualcomm/sc7180/include/soc/symbols.h b/src/soc/qualcomm/sc7180/include/soc/symbols.h index f15a8bbfef..207bc4377e 100644 --- a/src/soc/qualcomm/sc7180/include/soc/symbols.h +++ b/src/soc/qualcomm/sc7180/include/soc/symbols.h @@ -9,9 +9,12 @@ DECLARE_REGION(ssram) DECLARE_REGION(bsram) DECLARE_REGION(dram_aop) DECLARE_REGION(dram_soc) +DECLARE_REGION(dram_modem_wifi_only) +DECLARE_REGION(dram_modem_extra) DECLARE_REGION(dcb) DECLARE_REGION(pmic) DECLARE_REGION(limits_cfg) DECLARE_REGION(aop) +DECLARE_REGION(modem_id) #endif /* _SOC_QUALCOMM_SC7180_SYMBOLS_H_ */ diff --git a/src/soc/qualcomm/sc7180/memlayout.ld b/src/soc/qualcomm/sc7180/memlayout.ld index ce084780c6..65e50d106e 100644 --- a/src/soc/qualcomm/sc7180/memlayout.ld +++ b/src/soc/qualcomm/sc7180/memlayout.ld @@ -24,6 +24,7 @@ SECTIONS SSRAM_START(0x14680000) OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(0x14680000, 100K) REGION(qcsdi, 0x14699000, 52K, 4K) + REGION(modem_id, 0x146ABD00, 4, 4) SSRAM_END(0x146AE000) BSRAM_START(0x14800000) @@ -51,6 +52,8 @@ SECTIONS REGION(dram_aop, 0x80800000, 0x040000, 0x1000) REGION(dram_soc, 0x80900000, 0x200000, 0x1000) BL31(0x80B00000, 1M) + REGION(dram_modem_wifi_only, 0x86000000, 32M, 4) + REGION(dram_modem_extra, 0x88000000, 108M, 4) POSTRAM_CBFS_CACHE(0x9F800000, 16M) RAMSTAGE(0xA0800000, 16M) } diff --git a/src/soc/qualcomm/sc7180/soc.c b/src/soc/qualcomm/sc7180/soc.c index 74f0868672..d8cade4249 100644 --- a/src/soc/qualcomm/sc7180/soc.c +++ b/src/soc/qualcomm/sc7180/soc.c @@ -9,12 +9,17 @@ static void soc_read_resources(struct device *dev) { + void *start = NULL; + void *end = NULL; + ram_resource(dev, 0, (uintptr_t)ddr_region->offset / KiB, ddr_region->size / KiB); reserved_ram_resource(dev, 1, (uintptr_t)_dram_aop / KiB, REGION_SIZE(dram_aop) / KiB); reserved_ram_resource(dev, 2, (uintptr_t)_dram_soc / KiB, REGION_SIZE(dram_soc) / KiB); + if (soc_modem_carve_out(&start, &end)) + reserved_ram_resource(dev, 3, (uintptr_t)start / KiB, (end - start) / KiB); } static void soc_init(struct device *dev) |