| Ladislav Michl | 87d3be4 | 2017-08-17 03:06:45 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SPDX-License-Identifier: GPL-2.0+ |
| 3 | */ |
| 4 | #include <asm/io.h> |
| 5 | #include <asm/arch/mem.h> |
| 6 | #include <asm/arch/sys_proto.h> |
| 7 | #include <jffs2/load_kernel.h> |
| 8 | #include <linux/mtd/nand.h> |
| 9 | #include "igep00x0.h" |
| 10 | |
| 11 | /* |
| 12 | * Routine: get_board_mem_timings |
| 13 | * Description: If we use SPL then there is no x-loader nor config header |
| 14 | * so we have to setup the DDR timings ourself on both banks. |
| 15 | */ |
| 16 | void get_board_mem_timings(struct board_sdrc_timings *timings) |
| 17 | { |
| 18 | int mfr, id, err = identify_nand_chip(&mfr, &id); |
| 19 | |
| 20 | timings->mr = MICRON_V_MR_165; |
| 21 | if (!err) { |
| 22 | switch (mfr) { |
| 23 | case NAND_MFR_HYNIX: |
| 24 | timings->mcfg = HYNIX_V_MCFG_200(256 << 20); |
| 25 | timings->ctrla = HYNIX_V_ACTIMA_200; |
| 26 | timings->ctrlb = HYNIX_V_ACTIMB_200; |
| 27 | break; |
| 28 | case NAND_MFR_MICRON: |
| 29 | timings->mcfg = MICRON_V_MCFG_200(256 << 20); |
| 30 | timings->ctrla = MICRON_V_ACTIMA_200; |
| 31 | timings->ctrlb = MICRON_V_ACTIMB_200; |
| 32 | break; |
| 33 | default: |
| 34 | /* Should not happen... */ |
| 35 | break; |
| 36 | } |
| 37 | timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; |
| 38 | gpmc_cs0_flash = MTD_DEV_TYPE_NAND; |
| 39 | } else { |
| 40 | if (get_cpu_family() == CPU_OMAP34XX) { |
| 41 | timings->mcfg = NUMONYX_V_MCFG_165(256 << 20); |
| 42 | timings->ctrla = NUMONYX_V_ACTIMA_165; |
| 43 | timings->ctrlb = NUMONYX_V_ACTIMB_165; |
| 44 | timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; |
| 45 | } else { |
| 46 | timings->mcfg = NUMONYX_V_MCFG_200(256 << 20); |
| 47 | timings->ctrla = NUMONYX_V_ACTIMA_200; |
| 48 | timings->ctrlb = NUMONYX_V_ACTIMB_200; |
| 49 | timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; |
| 50 | } |
| 51 | gpmc_cs0_flash = MTD_DEV_TYPE_ONENAND; |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | #ifdef CONFIG_SPL_OS_BOOT |
| 56 | int spl_start_uboot(void) |
| 57 | { |
| 58 | /* break into full u-boot on 'c' */ |
| 59 | if (serial_tstc() && serial_getc() == 'c') |
| 60 | return 1; |
| 61 | |
| 62 | return 0; |
| 63 | } |
| 64 | #endif |