rockchip: rk3288: move dram_init_banksize() into soc file
[platform/kernel/u-boot.git] / arch / arm / mach-rockchip / rk3288 / rk3288.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2016 Rockchip Electronics Co., Ltd
4  */
5 #include <asm/armv7.h>
6 #include <asm/io.h>
7 #include <asm/arch-rockchip/hardware.h>
8 #include <asm/arch-rockchip/grf_rk3288.h>
9 #include <asm/arch-rockchip/pmu_rk3288.h>
10 #include <asm/arch-rockchip/sdram_common.h>
11
12 DECLARE_GLOBAL_DATA_PTR;
13
14 #define GRF_BASE        0xff770000
15
16 #ifdef CONFIG_SPL_BUILD
17 static void configure_l2ctlr(void)
18 {
19         u32 l2ctlr;
20
21         l2ctlr = read_l2ctlr();
22         l2ctlr &= 0xfffc0000; /* clear bit0~bit17 */
23
24         /*
25          * Data RAM write latency: 2 cycles
26          * Data RAM read latency: 2 cycles
27          * Data RAM setup latency: 1 cycle
28          * Tag RAM write latency: 1 cycle
29          * Tag RAM read latency: 1 cycle
30          * Tag RAM setup latency: 1 cycle
31          */
32         l2ctlr |= (1 << 3 | 1 << 0);
33         write_l2ctlr(l2ctlr);
34 }
35 #endif
36
37 int arch_cpu_init(void)
38 {
39 #ifdef CONFIG_SPL_BUILD
40         configure_l2ctlr();
41 #else
42         /* We do some SoC one time setting here. */
43         struct rk3288_grf * const grf = (void *)GRF_BASE;
44
45         /* Use rkpwm by default */
46         rk_setreg(&grf->soc_con2, 1 << 0);
47 #endif
48
49         return 0;
50 }
51
52 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
53 void board_debug_uart_init(void)
54 {
55         /* Enable early UART on the RK3288 */
56         struct rk3288_grf * const grf = (void *)GRF_BASE;
57
58         rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
59                      GPIO7C6_MASK << GPIO7C6_SHIFT,
60                      GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
61                      GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
62 }
63 #endif
64
65 #ifdef CONFIG_SPL_OS_BOOT
66
67 #define PMU_BASE                0xff730000
68 int dram_init_banksize(void)
69 {
70         struct rk3288_pmu *const pmu = (void *)PMU_BASE;
71         size_t size = rockchip_sdram_size((phys_addr_t)&pmu->sys_reg[2]);
72
73         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
74         gd->bd->bi_dram[0].size = size;
75
76         return 0;
77 }
78 #endif