projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 633724f4 | 1 | #\r |
| c54de822 | 2 | # Copyright (c) 2011-2012, ARM Limited. All rights reserved.\r |
| 633724f4 | 3 | #\r |
| 3402aac7 RC |
4 | # This program and the accompanying materials\r |
| 5 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 6 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | # http://opensource.org/licenses/bsd-license.php\r | |
| 8 | #\r | |
| 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 633724f4 | 11 | #\r |
| 12 | #\r | |
| 13 | \r | |
| 14 | #include <AsmMacroIoLib.h>\r | |
| 15 | #include <Library/PcdLib.h>\r | |
| 16 | #include <AutoGen.h>\r | |
| 17 | #include <Drivers/PL35xSmc.h>\r | |
| 18 | \r | |
| 19 | .text\r | |
| 20 | \r | |
| 21 | #Maintain 8 byte alignment\r | |
| 22 | .align 3\r | |
| 23 | \r | |
| c52e2dca | 24 | GCC_ASM_EXPORT(PL35xSmcInitialize)\r |
| c54de822 | 25 | GCC_ASM_EXPORT(PL35xSmcSetRefresh)\r |
| 633724f4 | 26 | \r |
| c52e2dca | 27 | // IN r1 Smc Base Address\r |
| 28 | // IN r2 Smc Configuration Start Address\r | |
| 29 | // IN r3 Smc Configuration End Address\r | |
| 633724f4 | 30 | // NOTE: This code is been called before any stack has been setup. It means some registers\r |
| 31 | // could be overwritten (case of 'r0')\r | |
| c52e2dca | 32 | ASM_PFX(PL35xSmcInitialize):\r |
| 33 | // While (SmcConfigurationStart < SmcConfigurationEnd)\r | |
| 34 | cmp r2, r3\r | |
| 35 | blxge lr\r | |
| 633724f4 | 36 | \r |
| c52e2dca | 37 | // Write to set_cycle register(holding register for NOR 1 cycle register or NAND cycle register)\r |
| 38 | ldr r0, [r2, #0x4]\r | |
| 39 | str r0, [r1, #PL350_SMC_SET_CYCLES_OFFSET]\r | |
| 633724f4 | 40 | \r |
| c52e2dca | 41 | // Write to set_opmode register(holding register for NOR 1 opomode register or NAND opmode register)\r |
| 42 | ldr r0, [r2, #0x8]\r | |
| 43 | str r0, [r1, #PL350_SMC_SET_OPMODE_OFFSET]\r | |
| 633724f4 | 44 | \r |
| c52e2dca | 45 | // Write to direct_cmd register so that the NOR 1 registers(set-cycles and opmode) are updated with holding registers\r |
| 46 | ldr r0, =PL350_SMC_DIRECT_CMD_ADDR_CMD_UPDATE\r | |
| 47 | ldr r4, [r2, #0x0]\r | |
| 48 | orr r0, r0, r4\r | |
| 49 | str r0, [r1, #PL350_SMC_DIRECT_CMD_OFFSET]\r | |
| 633724f4 | 50 | \r |
| c52e2dca | 51 | add r2, #0xC\r |
| 3723a71a | 52 | b ASM_PFX(PL35xSmcInitialize)\r |
| 633724f4 | 53 | \r |
| c54de822 | 54 | // IN r1 Smc Base Address\r |
| 55 | // IN r2 Smc Refresh Period 0\r | |
| 56 | // IN r3 Smc Refresh Period 1\r | |
| 57 | ASM_PFX(PL35xSmcSetRefresh):\r | |
| 58 | str r2, [r1, #PL350_SMC_REFRESH_0_OFFSET]\r | |
| 59 | str r3, [r1, #PL350_SMC_REFRESH_1_OFFSET]\r | |
| 60 | blx lr\r |