Add full support for dram initialization, using a fixed clock and autodetection of the memory organization (numbers of channels, bus-width, etc.).
This is based on dram_sun6i.c and dram.h from u-boot in the Allwinner A31 SDK, extended with extra initialization sequences and the autodetect algorithm from boot0.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- arch/arm/cpu/armv7/sunxi/Makefile | 1 + arch/arm/cpu/armv7/sunxi/dram_sun6i.c | 436 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-sunxi/cpu.h | 8 +- arch/arm/include/asm/arch-sunxi/dram.h | 4 + arch/arm/include/asm/arch-sunxi/dram_sun6i.h | 359 ++++++++++++++++++++++ 5 files changed, 805 insertions(+), 3 deletions(-) create mode 100644 arch/arm/cpu/armv7/sunxi/dram_sun6i.c create mode 100644 arch/arm/include/asm/arch-sunxi/dram_sun6i.h
diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile index 48cca0b..3b6ae47 100644 --- a/arch/arm/cpu/armv7/sunxi/Makefile +++ b/arch/arm/cpu/armv7/sunxi/Makefile @@ -30,6 +30,7 @@ endif ifdef CONFIG_SPL_BUILD obj-$(CONFIG_MACH_SUN4I) += dram_sun4i.o obj-$(CONFIG_MACH_SUN5I) += dram_sun4i.o +obj-$(CONFIG_MACH_SUN6I) += dram_sun6i.o obj-$(CONFIG_MACH_SUN7I) += dram_sun4i.o ifdef CONFIG_SPL_FEL obj-y += start.o diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun6i.c b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c new file mode 100644 index 0000000..d28a07d --- /dev/null +++ b/arch/arm/cpu/armv7/sunxi/dram_sun6i.c @@ -0,0 +1,436 @@ +/* + * Sun6i platform dram controller init. + * + * (C) Copyright 2007-2012 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * Berg Xing bergxing@allwinnertech.com + * Tom Cubie tangliang@allwinnertech.com + * + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <errno.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/dram.h> +#include <asm/arch/prcm.h> + +/* DRAM clk & zq defaults, maybe turn these into Kconfig options ? */ +#define DRAM_CLK_DEFAULT 312000000 +#define DRAM_ZQ_DEFAULT 0x78 + +struct dram_sun6i_para +{ + u8 bus_width; + u8 chan; + u8 rank; + u8 rows; + u16 page_size; +}; + +/* + * Wait up to 1s for value to be set in given part of reg. + */ +static void await_completion(u32 *reg, u32 mask, u32 val) +{ + unsigned long tmo = timer_get_us() + 1000000; + + while ((readl(reg) & mask) != val) { + if (timer_get_us() > tmo) + panic("Timeout initialising DRAM\n"); + } +} + +static void mctl_sys_init(void) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + const int dram_clk_div = 2; + + clock_set_pll5(DRAM_CLK_DEFAULT * dram_clk_div); + + clrsetbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_DIV0_MASK, + CCM_DRAMCLK_CFG_DIV0(dram_clk_div) | CCM_DRAMCLK_CFG_RST | + CCM_DRAMCLK_CFG_UPD); + await_completion(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_UPD, 0); + + writel(MDFS_CLK_DEFAULT, &ccm->mdfs_clk_cfg); + + /* deassert mctl reset */ + setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); + + /* enable mctl clock */ + setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); +} + +static void mctl_dll_init(int ch_index, struct dram_sun6i_para *para) +{ + struct sunxi_mctl_phy_reg *mctl_phy; + + if (ch_index == 0) + mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; + else + mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; + + /* disable + reset dlls */ + writel(MCTL_DLLCR_DISABLE, &mctl_phy->acdllcr); + writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx0dllcr); + writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx1dllcr); + if (para->bus_width == 32) { + writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx2dllcr); + writel(MCTL_DLLCR_DISABLE, &mctl_phy->dx3dllcr); + } + udelay(2); + + /* enable + reset dlls */ + writel(0, &mctl_phy->acdllcr); + writel(0, &mctl_phy->dx0dllcr); + writel(0, &mctl_phy->dx1dllcr); + if (para->bus_width == 32) { + writel(0, &mctl_phy->dx2dllcr); + writel(0, &mctl_phy->dx3dllcr); + } + udelay(22); + + /* enable and release reset of dlls */ + writel(MCTL_DLLCR_NRESET, &mctl_phy->acdllcr); + writel(MCTL_DLLCR_NRESET, &mctl_phy->dx0dllcr); + writel(MCTL_DLLCR_NRESET, &mctl_phy->dx1dllcr); + if (para->bus_width == 32) { + writel(MCTL_DLLCR_NRESET, &mctl_phy->dx2dllcr); + writel(MCTL_DLLCR_NRESET, &mctl_phy->dx3dllcr); + } + udelay(22); +} + +static bool mctl_rank_detect(u32 *gsr0, int rank) +{ + const u32 done = MCTL_DX_GSR0_RANK0_TRAIN_DONE << rank; + const u32 err = MCTL_DX_GSR0_RANK0_TRAIN_ERR << rank; + + await_completion(gsr0, done, done); + await_completion(gsr0 + 0x10, done, done); + + return !(readl(gsr0) & err) && !(readl(gsr0 + 0x10) & err); +} + +static void mctl_channel_init(int ch_index, struct dram_sun6i_para *para) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_ctl_reg *mctl_ctl; + struct sunxi_mctl_phy_reg *mctl_phy; + + if (ch_index == 0) { + mctl_ctl = (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; + } else { + mctl_ctl = (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL1_BASE; + mctl_phy = (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; + } + + writel(MCTL_MCMD_NOP, &mctl_ctl->mcmd); + await_completion(&mctl_ctl->mcmd, MCTL_MCMD_BUSY, 0); + + /* PHY initialization */ + writel(MCTL_PGCR, &mctl_phy->pgcr); + writel(MCTL_MR0, &mctl_phy->mr0); + writel(MCTL_MR1, &mctl_phy->mr1); + writel(MCTL_MR2, &mctl_phy->mr2); + writel(MCTL_MR3, &mctl_phy->mr3); + + writel((MCTL_TITMSRST << 18) | (MCTL_TDLLLOCK << 6) | MCTL_TDLLSRST, + &mctl_phy->ptr0); + /* Unknown magic performed by boot0 */ + if ((readl(SUNXI_RTC_BASE + 0x20c) & 3) == 2) + setbits_le32(&mctl_phy->ptr0, 1 << 18); + + writel((MCTL_TDINIT1 << 19) | MCTL_TDINIT0, &mctl_phy->ptr1); + writel((MCTL_TDINIT3 << 17) | MCTL_TDINIT2, &mctl_phy->ptr2); + + writel((MCTL_TCCD << 31) | (MCTL_TRC << 25) | (MCTL_TRRD << 21) | + (MCTL_TRAS << 16) | (MCTL_TRCD << 12) | (MCTL_TRP << 8) | + (MCTL_TWTR << 5) | (MCTL_TRTP << 2) | (MCTL_TMRD << 0), + &mctl_phy->dtpr0); + + writel((MCTL_TDQSCKMAX << 27) | (MCTL_TDQSCK << 24) | + (MCTL_TRFC << 16) | (MCTL_TRTODT << 11) | + ((MCTL_TMOD - 12) << 9) | (MCTL_TFAW << 3) | (0 << 2) | + (MCTL_TAOND << 0), &mctl_phy->dtpr1); + + writel((MCTL_TDLLK << 19) | (MCTL_TCKE << 15) | (MCTL_TXPDLL << 10) | + (MCTL_TEXSR << 0), &mctl_phy->dtpr2); + + writel(1, &mctl_ctl->dfitphyupdtype0); + writel(MCTL_DCR_DDR3, &mctl_phy->dcr); + writel(MCTL_DSGCR, &mctl_phy->dsgcr); + writel(MCTL_DXCCR, &mctl_phy->dxccr); + writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx0gcr); + writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx1gcr); + writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx2gcr); + writel(MCTL_DX_GCR | MCTL_DX_GCR_EN, &mctl_phy->dx3gcr); + + await_completion(&mctl_phy->pgsr, 0x03, 0x03); + + writel(DRAM_ZQ_DEFAULT, &mctl_phy->zq0cr1); + + setbits_le32(&mctl_phy->pir, MCTL_PIR_CLEAR_STATUS); + writel(MCTL_PIR_STEP1, &mctl_phy->pir); + udelay(10); + await_completion(&mctl_phy->pgsr, 0x1f, 0x1f); + + /* rank detect */ + if (!mctl_rank_detect(&mctl_phy->dx0gsr0, 1)) { + para->rank = 1; + clrbits_le32(&mctl_phy->pgcr, MCTL_PGCR_RANK); + } + + /* + * channel detect, check channel 1 dx0 and dx1 have rank 0, if not + * assume nothing is connected to channel 1. + */ + if (ch_index == 1 && !mctl_rank_detect(&mctl_phy->dx0gsr0, 0)) { + para->chan = 1; + clrbits_le32(&mctl_com->ccr, MCTL_CCR_CH1_CLK_EN); + return; + } + + /* bus width detect, if dx2 and dx3 don't have rank 0, assume 16 bit */ + if (!mctl_rank_detect(&mctl_phy->dx2gsr0, 0)) { + para->bus_width = 16; + para->page_size = 2048; + setbits_le32(&mctl_phy->dx2dllcr, MCTL_DLLCR_DISABLE); + setbits_le32(&mctl_phy->dx3dllcr, MCTL_DLLCR_DISABLE); + clrbits_le32(&mctl_phy->dx2gcr, MCTL_DX_GCR_EN); + clrbits_le32(&mctl_phy->dx3gcr, MCTL_DX_GCR_EN); + } + + setbits_le32(&mctl_phy->pir, MCTL_PIR_CLEAR_STATUS); + writel(MCTL_PIR_STEP2, &mctl_phy->pir); + udelay(10); + await_completion(&mctl_phy->pgsr, 0x11, 0x11); + + if (readl(&mctl_phy->pgsr) & MCTL_PGSR_TRAIN_ERR_MASK) + panic("Training error initialising DRAM\n"); + + /* Move to configure state */ + writel(MCTL_SCTL_CONFIG, &mctl_ctl->sctl); + await_completion(&mctl_ctl->sstat, 0x07, 0x01); + + /* Set number of clks per micro-second */ + writel(DRAM_CLK_DEFAULT / 1000000, &mctl_ctl->togcnt1u); + /* Set number of clks per 100 nano-seconds */ + writel(DRAM_CLK_DEFAULT / 10000000, &mctl_ctl->togcnt100n); + /* Set memory timing registers */ + writel(MCTL_TREFI, &mctl_ctl->trefi); + writel(MCTL_TMRD, &mctl_ctl->tmrd); + writel(MCTL_TRFC, &mctl_ctl->trfc); + writel((MCTL_TPREA << 16) | MCTL_TRP, &mctl_ctl->trp); + writel(MCTL_TRTW, &mctl_ctl->trtw); + writel(MCTL_TAL, &mctl_ctl->tal); + writel(MCTL_TCL, &mctl_ctl->tcl); + writel(MCTL_TCWL, &mctl_ctl->tcwl); + writel(MCTL_TRAS, &mctl_ctl->tras); + writel(MCTL_TRC, &mctl_ctl->trc); + writel(MCTL_TRCD, &mctl_ctl->trcd); + writel(MCTL_TRRD, &mctl_ctl->trrd); + writel(MCTL_TRTP, &mctl_ctl->trtp); + writel(MCTL_TWR, &mctl_ctl->twr); + writel(MCTL_TWTR, &mctl_ctl->twtr); + writel(MCTL_TEXSR, &mctl_ctl->texsr); + writel(MCTL_TXP, &mctl_ctl->txp); + writel(MCTL_TXPDLL, &mctl_ctl->txpdll); + writel(MCTL_TZQCS, &mctl_ctl->tzqcs); + writel(MCTL_TZQCSI, &mctl_ctl->tzqcsi); + writel(MCTL_TDQS, &mctl_ctl->tdqs); + writel(MCTL_TCKSRE, &mctl_ctl->tcksre); + writel(MCTL_TCKSRX, &mctl_ctl->tcksrx); + writel(MCTL_TCKE, &mctl_ctl->tcke); + writel(MCTL_TMOD, &mctl_ctl->tmod); + writel(MCTL_TRSTL, &mctl_ctl->trstl); + writel(MCTL_TZQCL, &mctl_ctl->tzqcl); + writel(MCTL_TMRR, &mctl_ctl->tmrr); + writel(MCTL_TCKESR, &mctl_ctl->tckesr); + writel(MCTL_TDPD, &mctl_ctl->tdpd); + + /* Unknown magic performed by boot0 */ + setbits_le32(&mctl_ctl->dfiodtcfg, 1 << 3); + clrbits_le32(&mctl_ctl->dfiodtcfg1, 0x1f); + + /* Select 16/32-bits mode for MCTL */ + if (para->bus_width == 16) + setbits_le32(&mctl_ctl->ppcfg, 1); + + /* Set DFI timing registers */ + writel(MCTL_TCWL, &mctl_ctl->dfitphywrl); + writel(MCTL_TCL - 1, &mctl_ctl->dfitrdden); + writel(MCTL_DFITPHYRDL, &mctl_ctl->dfitphyrdl); + writel(MCTL_DFISTCFG0, &mctl_ctl->dfistcfg0); + + writel(MCTL_MCFG_DDR3, &mctl_ctl->mcfg); + + /* DFI update configuration register */ + writel(MCTL_DFIUPDCFG_UPD, &mctl_ctl->dfiupdcfg); + + /* Move to access state */ + writel(MCTL_SCTL_ACCESS, &mctl_ctl->sctl); + await_completion(&mctl_ctl->sstat, 0x07, 0x03); +} + +static void mctl_com_init(struct dram_sun6i_para *para) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_phy_reg * const mctl_phy1 = + (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY1_BASE; + struct sunxi_prcm_reg * const prcm = + (struct sunxi_prcm_reg *)SUNXI_PRCM_BASE; + + writel(MCTL_CR_UNKNOWN | MCTL_CR_CHANNEL(para->chan) | MCTL_CR_DDR3 | + ((para->bus_width == 32) ? MCTL_CR_BUSW32 : MCTL_CR_BUSW16) | + MCTL_CR_PAGE_SIZE(para->page_size) | MCTL_CR_ROW(para->rows) | + MCTL_CR_BANK(1) | MCTL_CR_RANK(para->rank), &mctl_com->cr); + + /* Unknown magic performed by boot0 */ + setbits_le32(&mctl_com->dbgcr, (1 << 6)); + + if (para->chan == 1) { + /* Shutdown channel 1 */ + setbits_le32(&mctl_phy1->aciocr, MCTL_ACIOCR_DISABLE); + setbits_le32(&mctl_phy1->dxccr, MCTL_DXCCR_DISABLE); + clrbits_le32(&mctl_phy1->dsgcr, MCTL_DSGCR_ENABLE); + /* + * CH0 ?? this is what boot0 does. Leave as is until we can + * confirm this. + */ + setbits_le32(&prcm->vdd_sys_pwroff, + PRCM_VDD_SYS_DRAM_CH0_PAD_HOLD_PWROFF); + } +} + +static void mctl_port_cfg(void) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + + /* enable DRAM AXI clock for CPU access */ + setbits_le32(&ccm->axi_gate, 1 << AXI_GATE_OFFSET_DRAM); + + /* Bunch of magic writes performed by boot0 */ + writel(0x00400302, &mctl_com->rmcr[0]); + writel(0x01000307, &mctl_com->rmcr[1]); + writel(0x00400302, &mctl_com->rmcr[2]); + writel(0x01000307, &mctl_com->rmcr[3]); + writel(0x01000307, &mctl_com->rmcr[4]); + writel(0x01000303, &mctl_com->rmcr[6]); + writel(0x01000303, &mctl_com->mmcr[0]); + writel(0x00400310, &mctl_com->mmcr[1]); + writel(0x01000307, &mctl_com->mmcr[2]); + writel(0x01000303, &mctl_com->mmcr[3]); + writel(0x01800303, &mctl_com->mmcr[4]); + writel(0x01800303, &mctl_com->mmcr[5]); + writel(0x01800303, &mctl_com->mmcr[6]); + writel(0x01800303, &mctl_com->mmcr[7]); + writel(0x01000303, &mctl_com->mmcr[8]); + writel(0x00000002, &mctl_com->mmcr[15]); + writel(0x00000310, &mctl_com->mbagcr[0]); + writel(0x00400310, &mctl_com->mbagcr[1]); + writel(0x00400310, &mctl_com->mbagcr[2]); + writel(0x00000307, &mctl_com->mbagcr[3]); + writel(0x00000317, &mctl_com->mbagcr[4]); + writel(0x00000307, &mctl_com->mbagcr[5]); +} + +static bool mctl_mem_matches(u32 offset) +{ + const int match_count = 64; + int i, matches = 0; + + for (i = 0; i < match_count; i++) { + if (readl(CONFIG_SYS_SDRAM_BASE + i * 4) == + readl(CONFIG_SYS_SDRAM_BASE + offset + i * 4)) + matches++; + } + + return matches == match_count; +} + +unsigned long sunxi_dram_init(void) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + u32 offset; + int bank, bus, columns; + + /* Set initial parameters, these get modified by the autodetect code */ + struct dram_sun6i_para para = { + .bus_width = 32, + .chan = 2, + .rank = 2, + .page_size = 4096, + .rows = 16, + }; + + mctl_sys_init(); + + mctl_dll_init(0, ¶); + mctl_dll_init(1, ¶); + + setbits_le32(&mctl_com->ccr, + MCTL_CCR_MASTER_CLK_EN | + MCTL_CCR_CH0_CLK_EN | + MCTL_CCR_CH1_CLK_EN); + + mctl_channel_init(0, ¶); + mctl_channel_init(1, ¶); + mctl_com_init(¶); + mctl_port_cfg(); + + /* + * Change to 1 ch / sequence / 8192 byte pages / 16 rows / + * 8 bit banks / 1 rank mode. + */ + clrsetbits_le32(&mctl_com->cr, + MCTL_CR_CHANNEL_MASK | MCTL_CR_PAGE_SIZE_MASK | + MCTL_CR_ROW_MASK | MCTL_CR_BANK_MASK | MCTL_CR_RANK_MASK, + MCTL_CR_CHANNEL(1) | MCTL_CR_SEQUENCE | + MCTL_CR_PAGE_SIZE(8192) | MCTL_CR_ROW(16) | + MCTL_CR_BANK(1) | MCTL_CR_RANK(1)); + + /* Detect and set page size */ + for (columns = 7; columns < 20; columns++) { + if (mctl_mem_matches(1 << columns)) + break; + } + bus = (para.bus_width == 32) ? 2 : 1; + columns -= bus; + para.page_size = (1 << columns) * (bus << 1); + clrsetbits_le32(&mctl_com->cr, MCTL_CR_PAGE_SIZE_MASK, + MCTL_CR_PAGE_SIZE(para.page_size)); + + /* Detect and set rows */ + for (para.rows = 11; para.rows < 16; para.rows++) { + offset = 1 << (para.rows + columns + bus); + if (mctl_mem_matches(offset)) + break; + } + clrsetbits_le32(&mctl_com->cr, MCTL_CR_ROW_MASK, + MCTL_CR_ROW(para.rows)); + + /* Detect bank size */ + offset = 1 << (para.rows + columns + bus + 2); + bank = mctl_mem_matches(offset) ? 0 : 1; + + /* Restore interleave, chan and rank values, set bank size */ + clrsetbits_le32(&mctl_com->cr, + MCTL_CR_CHANNEL_MASK | MCTL_CR_SEQUENCE | + MCTL_CR_BANK_MASK | MCTL_CR_RANK_MASK, + MCTL_CR_CHANNEL(para.chan) | MCTL_CR_BANK(bank) | + MCTL_CR_RANK(para.rank)); + + return 1 << (para.rank + para.rows + bank + columns + para.chan + bus); +} diff --git a/arch/arm/include/asm/arch-sunxi/cpu.h b/arch/arm/include/asm/arch-sunxi/cpu.h index d34690e..6550e50 100644 --- a/arch/arm/include/asm/arch-sunxi/cpu.h +++ b/arch/arm/include/asm/arch-sunxi/cpu.h @@ -96,9 +96,10 @@ #define SUNXI_GMAC_BASE 0x01c50000
#define SUNXI_DRAM_COM_BASE 0x01c62000 -#define SUNXI_DRAM_CTL_BASE 0x01c63000 -#define SUNXI_DRAM_PHY_CH1_BASE 0x01c65000 -#define SUNXI_DRAM_PHY_CH2_BASE 0x01c66000 +#define SUNXI_DRAM_CTL0_BASE 0x01c63000 +#define SUNXI_DRAM_CTL1_BASE 0x01c64000 +#define SUNXI_DRAM_PHY0_BASE 0x01c65000 +#define SUNXI_DRAM_PHY1_BASE 0x01c66000
/* module sram */ #define SUNXI_SRAM_C_BASE 0x01d00000 @@ -110,6 +111,7 @@ #define SUNXI_MP_BASE 0x01e80000 #define SUNXI_AVG_BASE 0x01ea0000
+#define SUNXI_RTC_BASE 0x01f00000 #define SUNXI_PRCM_BASE 0x01f01400 #define SUN6I_CPUCFG_BASE 0x01f01c00 #define SUNXI_R_UART_BASE 0x01f02800 diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h index c58971d..9072e68 100644 --- a/arch/arm/include/asm/arch-sunxi/dram.h +++ b/arch/arm/include/asm/arch-sunxi/dram.h @@ -15,7 +15,11 @@ #include <linux/types.h>
/* dram regs definition */ +#if defined(CONFIG_MACH_SUN6I) +#include <asm/arch/dram_sun6i.h> +#else #include <asm/arch/dram_sun4i.h> +#endif
unsigned long sunxi_dram_init(void);
diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun6i.h b/arch/arm/include/asm/arch-sunxi/dram_sun6i.h new file mode 100644 index 0000000..2024bbc --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/dram_sun6i.h @@ -0,0 +1,359 @@ +/* + * Sun6i platform dram controller register and constant defines + * + * (C) Copyright 2007-2012 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * Berg Xing bergxing@allwinnertech.com + * Tom Cubie tangliang@allwinnertech.com + * + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SUNXI_DRAM_SUN6I_H +#define _SUNXI_DRAM_SUN6I_H + +struct sunxi_mctl_com_reg { + u32 cr; /* 0x00 */ + u32 ccr; /* 0x04 controller configuration register */ + u32 dbgcr; /* 0x08 */ + u32 dbgcr1; /* 0x0c */ + u32 rmcr[8]; /* 0x10 */ + u32 mmcr[16]; /* 0x30 */ + u32 mbagcr[6]; /* 0x70 */ + u32 maer; /* 0x88 */ + u8 res0[0x14]; /* 0x8c */ + u32 mdfscr; /* 0x100 */ + u32 mdfsmer; /* 0x104 */ + u32 mdfsmrmr; /* 0x108 */ + u32 mdfstr0; /* 0x10c */ + u32 mdfstr1; /* 0x110 */ + u32 mdfstr2; /* 0x114 */ + u32 mdfstr3; /* 0x118 */ + u32 mdfsgcr; /* 0x11c */ + u8 res1[0x1c]; /* 0x120 */ + u32 mdfsivr; /* 0x13c */ + u8 res2[0x0c]; /* 0x140 */ + u32 mdfstcr; /* 0x14c */ +}; + +struct sunxi_mctl_ctl_reg { + u8 res0[0x04]; /* 0x00 */ + u32 sctl; /* 0x04 */ + u32 sstat; /* 0x08 */ + u8 res1[0x34]; /* 0x0c */ + u32 mcmd; /* 0x40 */ + u8 res2[0x08]; /* 0x44 */ + u32 cmdstat; /* 0x4c */ + u32 cmdstaten; /* 0x50 */ + u8 res3[0x0c]; /* 0x54 */ + u32 mrrcfg0; /* 0x60 */ + u32 mrrstat0; /* 0x64 */ + u32 mrrstat1; /* 0x68 */ + u8 res4[0x10]; /* 0x6c */ + u32 mcfg1; /* 0x7c */ + u32 mcfg; /* 0x80 */ + u32 ppcfg; /* 0x84 */ + u32 mstat; /* 0x88 */ + u32 lp2zqcfg; /* 0x8c */ + u8 res5[0x04]; /* 0x90 */ + u32 dtustat; /* 0x94 */ + u32 dtuna; /* 0x98 */ + u32 dtune; /* 0x9c */ + u32 dtuprd0; /* 0xa0 */ + u32 dtuprd1; /* 0xa4 */ + u32 dtuprd2; /* 0xa8 */ + u32 dtuprd3; /* 0xac */ + u32 dtuawdt; /* 0xb0 */ + u8 res6[0x0c]; /* 0xb4 */ + u32 togcnt1u; /* 0xc0 */ + u8 res7[0x08]; /* 0xc4 */ + u32 togcnt100n; /* 0xcc */ + u32 trefi; /* 0xd0 */ + u32 tmrd; /* 0xd4 */ + u32 trfc; /* 0xd8 */ + u32 trp; /* 0xdc */ + u32 trtw; /* 0xe0 */ + u32 tal; /* 0xe4 */ + u32 tcl; /* 0xe8 */ + u32 tcwl; /* 0xec */ + u32 tras; /* 0xf0 */ + u32 trc; /* 0xf4 */ + u32 trcd; /* 0xf8 */ + u32 trrd; /* 0xfc */ + u32 trtp; /* 0x100 */ + u32 twr; /* 0x104 */ + u32 twtr; /* 0x108 */ + u32 texsr; /* 0x10c */ + u32 txp; /* 0x110 */ + u32 txpdll; /* 0x114 */ + u32 tzqcs; /* 0x118 */ + u32 tzqcsi; /* 0x11c */ + u32 tdqs; /* 0x120 */ + u32 tcksre; /* 0x124 */ + u32 tcksrx; /* 0x128 */ + u32 tcke; /* 0x12c */ + u32 tmod; /* 0x130 */ + u32 trstl; /* 0x134 */ + u32 tzqcl; /* 0x138 */ + u32 tmrr; /* 0x13c */ + u32 tckesr; /* 0x140 */ + u32 tdpd; /* 0x144 */ + u8 res8[0xb8]; /* 0x148 */ + u32 dtuwactl; /* 0x200 */ + u32 dturactl; /* 0x204 */ + u32 dtucfg; /* 0x208 */ + u32 dtuectl; /* 0x20c */ + u32 dtuwd0; /* 0x210 */ + u32 dtuwd1; /* 0x214 */ + u32 dtuwd2; /* 0x218 */ + u32 dtuwd3; /* 0x21c */ + u32 dtuwdm; /* 0x220 */ + u32 dturd0; /* 0x224 */ + u32 dturd1; /* 0x228 */ + u32 dturd2; /* 0x22c */ + u32 dturd3; /* 0x230 */ + u32 dtulfsrwd; /* 0x234 */ + u32 dtulfsrrd; /* 0x238 */ + u32 dtueaf; /* 0x23c */ + u32 dfitctldly; /* 0x240 */ + u32 dfiodtcfg; /* 0x244 */ + u32 dfiodtcfg1; /* 0x248 */ + u32 dfiodtrmap; /* 0x24c */ + u32 dfitphywrd; /* 0x250 */ + u32 dfitphywrl; /* 0x254 */ + u8 res9[0x08]; /* 0x258 */ + u32 dfitrdden; /* 0x260 */ + u32 dfitphyrdl; /* 0x264 */ + u8 res10[0x08]; /* 0x268 */ + u32 dfitphyupdtype0; /* 0x270 */ + u32 dfitphyupdtype1; /* 0x274 */ + u32 dfitphyupdtype2; /* 0x278 */ + u32 dfitphyupdtype3; /* 0x27c */ + u32 dfitctrlupdmin; /* 0x280 */ + u32 dfitctrlupdmax; /* 0x284 */ + u32 dfitctrlupddly; /* 0x288 */ + u8 res11[4]; /* 0x28c */ + u32 dfiupdcfg; /* 0x290 */ + u32 dfitrefmski; /* 0x294 */ + u32 dfitcrlupdi; /* 0x298 */ + u8 res12[0x10]; /* 0x29c */ + u32 dfitrcfg0; /* 0x2ac */ + u32 dfitrstat0; /* 0x2b0 */ + u32 dfitrwrlvlen; /* 0x2b4 */ + u32 dfitrrdlvlen; /* 0x2b8 */ + u32 dfitrrdlvlgateen; /* 0x2bc */ + u8 res13[0x04]; /* 0x2c0 */ + u32 dfistcfg0; /* 0x2c4 */ + u32 dfistcfg1; /* 0x2c8 */ + u8 res14[0x04]; /* 0x2cc */ + u32 dfitdramclken; /* 0x2d0 */ + u32 dfitdramclkdis; /* 0x2d4 */ + u8 res15[0x18]; /* 0x2d8 */ + u32 dfilpcfg0; /* 0x2f0 */ +}; + +struct sunxi_mctl_phy_reg { + u8 res0[0x04]; /* 0x00 */ + u32 pir; /* 0x04 */ + u32 pgcr; /* 0x08 phy general configuration register */ + u32 pgsr; /* 0x0c */ + u32 dllgcr; /* 0x10 */ + u32 acdllcr; /* 0x14 */ + u32 ptr0; /* 0x18 */ + u32 ptr1; /* 0x1c */ + u32 ptr2; /* 0x20 */ + u32 aciocr; /* 0x24 */ + u32 dxccr; /* 0x28 DATX8 common configuration register */ + u32 dsgcr; /* 0x2c dram system general config register */ + u32 dcr; /* 0x30 */ + u32 dtpr0; /* 0x34 dram timing parameters register 0 */ + u32 dtpr1; /* 0x38 dram timing parameters register 1 */ + u32 dtpr2; /* 0x3c dram timing parameters register 2 */ + u32 mr0; /* 0x40 mode register 0 */ + u32 mr1; /* 0x44 mode register 1 */ + u32 mr2; /* 0x48 mode register 2 */ + u32 mr3; /* 0x4c mode register 3 */ + u32 odtcr; /* 0x50 */ + u32 dtar; /* 0x54 data training address register */ + u32 dtd0; /* 0x58 */ + u32 dtd1; /* 0x5c */ + u8 res1[0x60]; /* 0x60 */ + u32 dcuar; /* 0xc0 */ + u32 dcudr; /* 0xc4 */ + u32 dcurr; /* 0xc8 */ + u32 dculr; /* 0xcc */ + u32 dcugcr; /* 0xd0 */ + u32 dcutpr; /* 0xd4 */ + u32 dcusr0; /* 0xd8 */ + u32 dcusr1; /* 0xdc */ + u8 res2[0x20]; /* 0xe0 */ + u32 bistrr; /* 0x100 */ + u32 bistmskr0; /* 0x104 */ + u32 bistmskr1; /* 0x108 */ + u32 bistwcr; /* 0x10c */ + u32 bistlsr; /* 0x110 */ + u32 bistar0; /* 0x114 */ + u32 bistar1; /* 0x118 */ + u32 bistar2; /* 0x11c */ + u32 bistupdr; /* 0x120 */ + u32 bistgsr; /* 0x124 */ + u32 bistwer; /* 0x128 */ + u32 bistber0; /* 0x12c */ + u32 bistber1; /* 0x130 */ + u32 bistber2; /* 0x134 */ + u32 bistwcsr; /* 0x138 */ + u32 bistfwr0; /* 0x13c */ + u32 bistfwr1; /* 0x140 */ + u8 res3[0x3c]; /* 0x144 */ + u32 zq0cr0; /* 0x180 zq 0 control register 0 */ + u32 zq0cr1; /* 0x184 zq 0 control register 1 */ + u32 zq0sr0; /* 0x188 zq 0 status register 0 */ + u32 zq0sr1; /* 0x18c zq 0 status register 1 */ + u8 res4[0x30]; /* 0x190 */ + u32 dx0gcr; /* 0x1c0 */ + u32 dx0gsr0; /* 0x1c4 */ + u32 dx0gsr1; /* 0x1c8 */ + u32 dx0dllcr; /* 0x1cc */ + u32 dx0dqtr; /* 0x1d0 */ + u32 dx0dqstr; /* 0x1d4 */ + u8 res5[0x28]; /* 0x1d8 */ + u32 dx1gcr; /* 0x200 */ + u32 dx1gsr0; /* 0x204 */ + u32 dx1gsr1; /* 0x208 */ + u32 dx1dllcr; /* 0x20c */ + u32 dx1dqtr; /* 0x210 */ + u32 dx1dqstr; /* 0x214 */ + u8 res6[0x28]; /* 0x218 */ + u32 dx2gcr; /* 0x240 */ + u32 dx2gsr0; /* 0x244 */ + u32 dx2gsr1; /* 0x248 */ + u32 dx2dllcr; /* 0x24c */ + u32 dx2dqtr; /* 0x250 */ + u32 dx2dqstr; /* 0x254 */ + u8 res7[0x28]; /* 0x258 */ + u32 dx3gcr; /* 0x280 */ + u32 dx3gsr0; /* 0x284 */ + u32 dx3gsr1; /* 0x288 */ + u32 dx3dllcr; /* 0x28c */ + u32 dx3dqtr; /* 0x290 */ + u32 dx3dqstr; /* 0x294 */ +}; + +/* + * DRAM common (sunxi_mctl_com_reg) register constants. + */ +#define MCTL_CR_RANK_MASK (3 << 0) +#define MCTL_CR_RANK(x) (((x) - 1) << 0) +#define MCTL_CR_BANK_MASK (3 << 2) +#define MCTL_CR_BANK(x) ((x) << 2) +#define MCTL_CR_ROW_MASK (0xf << 4) +#define MCTL_CR_ROW(x) (((x) - 1) << 4) +#define MCTL_CR_PAGE_SIZE_MASK (0xf << 8) +#define MCTL_CR_PAGE_SIZE(x) ((fls(x) - 4) << 8) +#define MCTL_CR_BUSW_MASK (3 << 12) +#define MCTL_CR_BUSW16 (1 << 12) +#define MCTL_CR_BUSW32 (3 << 12) +#define MCTL_CR_SEQUENCE (1 << 15) +#define MCTL_CR_DDR3 (3 << 16) +#define MCTL_CR_CHANNEL_MASK (1 << 19) +#define MCTL_CR_CHANNEL(x) (((x) - 1) << 19) +#define MCTL_CR_UNKNOWN ((1 << 22) | (1 << 20)) +#define MCTL_CCR_CH0_CLK_EN (1 << 0) +#define MCTL_CCR_CH1_CLK_EN (1 << 1) +#define MCTL_CCR_MASTER_CLK_EN (1 << 2) + +/* + * DRAM control (sunxi_mctl_ctl_reg) register constants. + * Note that we use constant values for a lot of the timings, this is what + * the original boot0 bootloader does. + */ +#define MCTL_SCTL_CONFIG 1 +#define MCTL_SCTL_ACCESS 2 +#define MCTL_MCMD_NOP 0x88000000 +#define MCTL_MCMD_BUSY 0x80000000 +#define MCTL_MCFG_DDR3 0x70061 +#define MCTL_TREFI 78 +#define MCTL_TMRD 4 +#define MCTL_TRFC 115 +#define MCTL_TRP 9 +#define MCTL_TPREA 0 +#define MCTL_TRTW 2 +#define MCTL_TAL 0 +#define MCTL_TCL 9 +#define MCTL_TCWL 8 +#define MCTL_TRAS 18 +#define MCTL_TRC 23 +#define MCTL_TRCD 9 +#define MCTL_TRRD 4 +#define MCTL_TRTP 4 +#define MCTL_TWR 8 +#define MCTL_TWTR 4 +#define MCTL_TEXSR 512 +#define MCTL_TXP 4 +#define MCTL_TXPDLL 14 +#define MCTL_TZQCS 64 +#define MCTL_TZQCSI 0 +#define MCTL_TDQS 1 +#define MCTL_TCKSRE 5 +#define MCTL_TCKSRX 5 +#define MCTL_TCKE 4 +#define MCTL_TMOD 12 +#define MCTL_TRSTL 80 +#define MCTL_TZQCL 512 +#define MCTL_TMRR 2 +#define MCTL_TCKESR 5 +#define MCTL_TDPD 0 +#define MCTL_DFITPHYRDL 15 +#define MCTL_DFIUPDCFG_UPD (1 << 1) +#define MCTL_DFISTCFG0 5 + +/* + * DRAM phy (sunxi_mctl_phy_reg) register values / constants. + */ +#define MCTL_PIR_CLEAR_STATUS (1 << 28) +#define MCTL_PIR_STEP1 0xe9 +#define MCTL_PIR_STEP2 0x81 +#define MCTL_PGCR_RANK (1 << 19) +#define MCTL_PGCR 0x018c0202 +#define MCTL_PGSR_TRAIN_ERR_MASK (3 << 5) +/* constants for both acdllcr as well as dx#dllcr */ +#define MCTL_DLLCR_NRESET (1 << 30) +#define MCTL_DLLCR_DISABLE (1 << 31) +/* ptr constants these are or-ed together to get the final ptr# values */ +#define MCTL_TITMSRST 10 +#define MCTL_TDLLLOCK 2250 +#define MCTL_TDLLSRST 23 +#define MCTL_TDINIT0 217000 +#define MCTL_TDINIT1 160 +#define MCTL_TDINIT2 87000 +#define MCTL_TDINIT3 433 +/* end ptr constants */ +#define MCTL_ACIOCR_DISABLE ((3 << 18) | (1 << 8) | (1 << 3)) +#define MCTL_DXCCR_DISABLE ((1 << 3) | (1 << 2)) +#define MCTL_DXCCR 0x800 +#define MCTL_DSGCR_ENABLE (1 << 28) +#define MCTL_DSGCR 0xf200001b +#define MCTL_DCR_DDR3 0x0b +/* dtpr constants these are or-ed together to get the final dtpr# values */ +#define MCTL_TCCD 0 +#define MCTL_TDQSCKMAX 1 +#define MCTL_TDQSCK 1 +#define MCTL_TRTODT 0 +#define MCTL_TFAW 20 +#define MCTL_TAOND 0 +#define MCTL_TDLLK 512 +/* end dtpr constants */ +#define MCTL_MR0 0x1a50 +#define MCTL_MR1 0x4 +#define MCTL_MR2 ((MCTL_TCWL - 5) << 3) +#define MCTL_MR3 0x0 +#define MCTL_DX_GCR_EN (1 << 0) +#define MCTL_DX_GCR 0x880 +#define MCTL_DX_GSR0_RANK0_TRAIN_DONE (1 << 0) +#define MCTL_DX_GSR0_RANK1_TRAIN_DONE (1 << 1) +#define MCTL_DX_GSR0_RANK0_TRAIN_ERR (1 << 4) +#define MCTL_DX_GSR0_RANK1_TRAIN_ERR (1 << 5) + +#endif /* _SUNXI_DRAM_SUN6I_H */