feat(morello): configure DMC-Bing mode
Based on the SCC configuration value obtained from the SDS
platform information structure configure DMC-Bing Server or
Client mode after zeroing out the memory.
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>
Change-Id: I0555fa06c9c1906264848f4e32ca413b4742cdee
diff --git a/plat/arm/board/morello/morello_bl31_setup.c b/plat/arm/board/morello/morello_bl31_setup.c
index 0eedfaf..05a6f4b 100644
--- a/plat/arm/board/morello/morello_bl31_setup.c
+++ b/plat/arm/board/morello/morello_bl31_setup.c
@@ -23,12 +23,14 @@
* - Remote DDR size in bytes, DDR memory in slave board
* - slave_count
* - multichip mode
+ * - scc configuration
*/
struct morello_plat_info {
uint64_t local_ddr_size;
uint64_t remote_ddr_size;
uint8_t slave_count;
bool multichip_mode;
+ uint32_t scc_config;
} __packed;
/* Compile time assertion to ensure the size of structure is 18 bytes */
@@ -79,6 +81,8 @@
{
uint64_t dram2_size;
uint32_t val;
+ uint64_t tag_mem_base;
+ uint64_t usable_mem_size;
INFO("Total DIMM size: %uGB\n",
(uint32_t)(plat_info->local_ddr_size / 0x40000000));
@@ -115,6 +119,63 @@
continue;
}
+ /* Configure Bing client/server mode based on SCC configuration */
+ if (plat_info->scc_config & MORELLO_SCC_CLIENT_MODE_MASK) {
+ INFO("Configuring DMC Bing in client mode\n");
+ usable_mem_size = plat_info->local_ddr_size -
+ (plat_info->local_ddr_size / 128ULL);
+
+ /* Linear DDR address */
+ tag_mem_base = usable_mem_size;
+ tag_mem_base = tag_mem_base / 4;
+
+ /* Reverse translation */
+ if (tag_mem_base < ARM_DRAM1_BASE) {
+ tag_mem_base += ARM_DRAM1_BASE;
+ } else {
+ tag_mem_base = tag_mem_base - ARM_DRAM1_BASE +
+ ARM_DRAM2_BASE;
+ }
+
+ mmio_write_32(MORELLO_DMC0_CAP_CTRL_REG, 0x1);
+ mmio_write_32(MORELLO_DMC1_CAP_CTRL_REG, 0x1);
+ mmio_write_32(MORELLO_DMC0_TAG_CACHE_CFG, 0x1);
+ mmio_write_32(MORELLO_DMC1_TAG_CACHE_CFG, 0x1);
+
+ if (plat_info->scc_config & MORELLO_SCC_C1_TAG_CACHE_EN_MASK) {
+ mmio_setbits_32(MORELLO_DMC0_TAG_CACHE_CFG, 0x2);
+ mmio_setbits_32(MORELLO_DMC1_TAG_CACHE_CFG, 0x2);
+ INFO("C1 Tag Cache Enabled\n");
+ }
+
+ if (plat_info->scc_config & MORELLO_SCC_C2_TAG_CACHE_EN_MASK) {
+ mmio_setbits_32(MORELLO_DMC0_TAG_CACHE_CFG, 0x4);
+ mmio_setbits_32(MORELLO_DMC1_TAG_CACHE_CFG, 0x4);
+ INFO("C2 Tag Cache Enabled\n");
+ }
+
+ mmio_write_32(MORELLO_DMC0_MEM_ADDR_CTL,
+ (uint32_t)tag_mem_base);
+ mmio_write_32(MORELLO_DMC1_MEM_ADDR_CTL,
+ (uint32_t)tag_mem_base);
+ mmio_write_32(MORELLO_DMC0_MEM_ADDR_CTL2,
+ (uint32_t)(tag_mem_base >> 32));
+ mmio_write_32(MORELLO_DMC1_MEM_ADDR_CTL2,
+ (uint32_t)(tag_mem_base >> 32));
+
+ mmio_setbits_32(MORELLO_DMC0_MEM_ACCESS_CTL,
+ MORELLO_DMC_MEM_ACCESS_DIS);
+ mmio_setbits_32(MORELLO_DMC1_MEM_ACCESS_CTL,
+ MORELLO_DMC_MEM_ACCESS_DIS);
+
+ INFO("Tag base set to 0x%lx\n", tag_mem_base);
+ plat_info->local_ddr_size = usable_mem_size;
+ } else {
+ INFO("Configuring DMC Bing in server mode\n");
+ mmio_write_32(MORELLO_DMC0_CAP_CTRL_REG, 0x0);
+ mmio_write_32(MORELLO_DMC1_CAP_CTRL_REG, 0x0);
+ }
+
INFO("Enabling ECC on DMCs\n");
/* Enable ECC in DMCs */
mmio_setbits_32(MORELLO_DMC0_ERR0CTLR0_REG,