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driver: net: fsl-mc: Update calculation of MC RAM
Since the reserved RAM is tracked by gd->arch.resv_ram, calculation of MC memory blocks can be simplified. The MC RAM is guaranteed to be aligned by the reservation process. Signed-off-by: York Sun <york.sun@nxp.com> CC: Priyanka Jain <priyanka.jain@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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parent
36cc0de0b9
commit
437858b620
1 changed files with 8 additions and 51 deletions
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@ -154,48 +154,6 @@ int parse_mc_firmware_fit_image(u64 mc_fw_addr,
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}
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#endif
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/*
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* Calculates the values to be used to specify the address range
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* for the MC private DRAM block, in the MCFBALR/MCFBAHR registers.
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* It returns the highest 512MB-aligned address within the given
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* address range, in '*aligned_base_addr', and the number of 256 MiB
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* blocks in it, in 'num_256mb_blocks'.
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*/
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static int calculate_mc_private_ram_params(u64 mc_private_ram_start_addr,
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size_t mc_ram_size,
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u64 *aligned_base_addr,
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u8 *num_256mb_blocks)
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{
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u64 addr;
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u16 num_blocks;
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if (mc_ram_size % MC_RAM_SIZE_ALIGNMENT != 0) {
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printf("fsl-mc: ERROR: invalid MC private RAM size (%lu)\n",
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mc_ram_size);
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return -EINVAL;
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}
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num_blocks = mc_ram_size / MC_RAM_SIZE_ALIGNMENT;
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if (num_blocks < 1 || num_blocks > 0xff) {
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printf("fsl-mc: ERROR: invalid MC private RAM size (%lu)\n",
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mc_ram_size);
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return -EINVAL;
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}
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addr = (mc_private_ram_start_addr + mc_ram_size - 1) &
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MC_RAM_BASE_ADDR_ALIGNMENT_MASK;
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if (addr < mc_private_ram_start_addr) {
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printf("fsl-mc: ERROR: bad start address %#llx\n",
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mc_private_ram_start_addr);
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return -EFAULT;
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}
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*aligned_base_addr = addr;
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*num_256mb_blocks = num_blocks;
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return 0;
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}
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static int mc_fixup_dpc_mac_addr(void *blob, int noff, int dpmac_id,
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struct eth_device *eth_dev)
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{
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@ -550,17 +508,16 @@ int mc_init(u64 mc_fw_addr, u64 mc_dpc_addr)
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size_t raw_image_size = 0;
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#endif
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struct mc_version mc_ver_info;
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u64 mc_ram_aligned_base_addr;
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u8 mc_ram_num_256mb_blocks;
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size_t mc_ram_size = mc_get_dram_block_size();
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error = calculate_mc_private_ram_params(mc_ram_addr,
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mc_ram_size,
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&mc_ram_aligned_base_addr,
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&mc_ram_num_256mb_blocks);
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if (error != 0)
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mc_ram_num_256mb_blocks = mc_ram_size / MC_RAM_SIZE_ALIGNMENT;
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if (mc_ram_num_256mb_blocks < 1 || mc_ram_num_256mb_blocks > 0xff) {
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error = -EINVAL;
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printf("fsl-mc: ERROR: invalid MC private RAM size (%lu)\n",
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mc_ram_size);
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goto out;
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}
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/*
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* Management Complex cores should be held at reset out of POR.
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@ -602,11 +559,11 @@ int mc_init(u64 mc_fw_addr, u64 mc_dpc_addr)
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/*
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* Tell MC what is the address range of the DRAM block assigned to it:
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*/
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reg_mcfbalr = (u32)mc_ram_aligned_base_addr |
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reg_mcfbalr = (u32)mc_ram_addr |
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(mc_ram_num_256mb_blocks - 1);
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out_le32(&mc_ccsr_regs->reg_mcfbalr, reg_mcfbalr);
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out_le32(&mc_ccsr_regs->reg_mcfbahr,
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(u32)(mc_ram_aligned_base_addr >> 32));
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(u32)(mc_ram_addr >> 32));
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out_le32(&mc_ccsr_regs->reg_mcfapr, FSL_BYPASS_AMQ);
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/*
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