sun8i (A23) introduces a new bus for communicating with the pmic, the rsb, the rsb is also used to communicate with the pmic on the A80, and is documented in the A80 user manual.

This commit adds support for this based on the rsb driver from the allwinner u-boot sources.

Signed-off-by: Hans de Goede hdegoede@redhat.com --- arch/arm/cpu/armv7/sunxi/Makefile | 1 + arch/arm/cpu/armv7/sunxi/rsb.c | 158 +++++++++++++++++++++++++++++++++ arch/arm/include/asm/arch-sunxi/cpu.h | 1 + arch/arm/include/asm/arch-sunxi/gpio.h | 2 + arch/arm/include/asm/arch-sunxi/prcm.h | 3 +- arch/arm/include/asm/arch-sunxi/rsb.h | 55 ++++++++++++ 6 files changed, 219 insertions(+), 1 deletion(-) create mode 100644 arch/arm/cpu/armv7/sunxi/rsb.c create mode 100644 arch/arm/include/asm/arch-sunxi/rsb.h

diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile index 1337b60..3e8975a 100644 --- a/arch/arm/cpu/armv7/sunxi/Makefile +++ b/arch/arm/cpu/armv7/sunxi/Makefile @@ -15,6 +15,7 @@ obj-y += pinmux.o obj-$(CONFIG_MACH_SUN6I) += prcm.o obj-$(CONFIG_MACH_SUN8I) += prcm.o obj-$(CONFIG_MACH_SUN6I) += p2wi.o +obj-$(CONFIG_MACH_SUN8I) += rsb.o obj-$(CONFIG_MACH_SUN4I) += clock_sun4i.o obj-$(CONFIG_MACH_SUN5I) += clock_sun4i.o obj-$(CONFIG_MACH_SUN6I) += clock_sun6i.o diff --git a/arch/arm/cpu/armv7/sunxi/rsb.c b/arch/arm/cpu/armv7/sunxi/rsb.c new file mode 100644 index 0000000..b72bb9d --- /dev/null +++ b/arch/arm/cpu/armv7/sunxi/rsb.c @@ -0,0 +1,158 @@ +/* + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * Based on allwinner u-boot sources rsb code which is: + * (C) Copyright 2007-2013 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * lixiang lixiang@allwinnertech.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <errno.h> +#include <asm/arch/cpu.h> +#include <asm/arch/gpio.h> +#include <asm/arch/prcm.h> +#include <asm/arch/rsb.h> + +static void rsb_cfg_io(void) +{ + sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_GPL0_R_RSB_SCK); + sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_GPL1_R_RSB_SDA); + sunxi_gpio_set_pull(SUNXI_GPL(0), 1); + sunxi_gpio_set_pull(SUNXI_GPL(1), 1); + sunxi_gpio_set_drv(SUNXI_GPL(0), 2); + sunxi_gpio_set_drv(SUNXI_GPL(1), 2); +} + +static void rsb_set_clk(void) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + u32 div = 0; + u32 cd_odly = 0; + + /* Source is Hosc24M, set RSB clk to 3Mhz */ + div = 24000000 / 3000000 / 2 - 1; + cd_odly = div >> 1; + if (!cd_odly) + cd_odly = 1; + + writel((cd_odly << 8) | div, &rsb->ccr); +} + +void rsb_init(void) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + + rsb_cfg_io(); + + /* Enable RSB and PIO clk, and de-assert their resets */ + prcm_apb0_enable(PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_RSB); + + writel(RSB_CTRL_SOFT_RST, &rsb->ctrl); + rsb_set_clk(); +} + +static int rsb_await_trans(void) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + unsigned long tmo = timer_get_us() + 1000000; + u32 stat; + int ret; + + while (1) { + stat = readl(&rsb->stat); + if (stat & RSB_STAT_LBSY_INT) { + ret = -EBUSY; + break; + } + if (stat & RSB_STAT_TERR_INT) { + ret = -EIO; + break; + } + if (stat & RSB_STAT_TOVER_INT) { + ret = 0; + break; + } + if (timer_get_us() > tmo) { + ret = -ETIME; + break; + } + } + writel(stat, &rsb->stat); /* Clear status bits */ + + return ret; +} + +int rsb_set_device_mode(u32 device_mode_data) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + unsigned long tmo = timer_get_us() + 1000000; + + writel(RSB_DMCR_DEVICE_MODE_START | device_mode_data, &rsb->dmcr); + + while (readl(&rsb->dmcr) & RSB_DMCR_DEVICE_MODE_START) { + if (timer_get_us() > tmo) + return -ETIME; + } + + return rsb_await_trans(); +} + +static int rsb_do_trans(void) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + + setbits_le32(&rsb->ctrl, RSB_CTRL_START_TRANS); + return rsb_await_trans(); +} + +int rsb_set_device_address(u16 device_addr, u16 runtime_addr) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + + writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_addr) | + RSB_DEVADDR_DEVICE_ADDR(device_addr), &rsb->devaddr); + writel(RSB_CMD_SET_RTSADDR, &rsb->cmd); + + return rsb_do_trans(); +} + +int rsb_write(const u16 runtime_device_addr, const u8 reg_addr, u8 data) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + + writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_device_addr), &rsb->devaddr); + writel(reg_addr, &rsb->addr); + writel(data, &rsb->data); + writel(RSB_CMD_BYTE_WRITE, &rsb->cmd); + + return rsb_do_trans(); +} + +int rsb_read(const u16 runtime_device_addr, const u8 reg_addr, u8 *data) +{ + struct sunxi_rsb_reg * const rsb = + (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; + int ret; + + writel(RSB_DEVADDR_RUNTIME_ADDR(runtime_device_addr), &rsb->devaddr); + writel(reg_addr, &rsb->addr); + writel(RSB_CMD_BYTE_READ, &rsb->cmd); + + ret = rsb_do_trans(); + if (ret) + return ret; + + *data = readl(&rsb->data) & 0xff; + + return 0; +} diff --git a/arch/arm/include/asm/arch-sunxi/cpu.h b/arch/arm/include/asm/arch-sunxi/cpu.h index adf203a..bcfa00d 100644 --- a/arch/arm/include/asm/arch-sunxi/cpu.h +++ b/arch/arm/include/asm/arch-sunxi/cpu.h @@ -129,6 +129,7 @@ #define SUNXI_R_UART_BASE 0x01f02800 #define SUNXI_R_PIO_BASE 0x01f02c00 #define SUN6I_P2WI_BASE 0x01f03400 +#define SUNXI_RSB_BASE 0x01f03400

/* CoreSight Debug Module */ #define SUNXI_CSDM_BASE 0x3f500000 diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h index 9f972ce..6623f15 100644 --- a/arch/arm/include/asm/arch-sunxi/gpio.h +++ b/arch/arm/include/asm/arch-sunxi/gpio.h @@ -176,6 +176,8 @@ enum sunxi_gpio_number { #define SUN6I_GPL0_R_P2WI_SCK 3 #define SUN6I_GPL1_R_P2WI_SDA 3

+#define SUN8I_GPL0_R_RSB_SCK 2 +#define SUN8I_GPL1_R_RSB_SDA 2 #define SUN8I_GPL2_R_UART_TX 2 #define SUN8I_GPL3_R_UART_RX 2

diff --git a/arch/arm/include/asm/arch-sunxi/prcm.h b/arch/arm/include/asm/arch-sunxi/prcm.h index 88de1ff..82ed541 100644 --- a/arch/arm/include/asm/arch-sunxi/prcm.h +++ b/arch/arm/include/asm/arch-sunxi/prcm.h @@ -50,7 +50,8 @@ #define PRCM_APB0_GATE_PIO (0x1 << 0) #define PRCM_APB0_GATE_IR (0x1 << 1) #define PRCM_APB0_GATE_TIMER01 (0x1 << 2) -#define PRCM_APB0_GATE_P2WI (0x1 << 3) +#define PRCM_APB0_GATE_P2WI (0x1 << 3) /* sun6i */ +#define PRCM_APB0_GATE_RSB (0x1 << 3) /* sun8i */ #define PRCM_APB0_GATE_UART (0x1 << 4) #define PRCM_APB0_GATE_1WIRE (0x1 << 5) #define PRCM_APB0_GATE_I2C (0x1 << 6) diff --git a/arch/arm/include/asm/arch-sunxi/rsb.h b/arch/arm/include/asm/arch-sunxi/rsb.h new file mode 100644 index 0000000..95a595a --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/rsb.h @@ -0,0 +1,55 @@ +/* + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * Based on allwinner u-boot sources rsb code which is: + * (C) Copyright 2007-2013 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * lixiang lixiang@allwinnertech.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __SUNXI_RSB_H +#define __SUNXI_RSB_H + +#include <common.h> +#include <asm/io.h> + +struct sunxi_rsb_reg { + u32 ctrl; /* 0x00 */ + u32 ccr; /* 0x04 */ + u32 inte; /* 0x08 */ + u32 stat; /* 0x0c */ + u32 addr; /* 0x10 */ + u8 res0[8]; /* 0x14 */ + u32 data; /* 0x1c */ + u8 res1[4]; /* 0x20 */ + u32 lcr; /* 0x24 */ + u32 dmcr; /* 0x28 */ + u32 cmd; /* 0x2c */ + u32 devaddr; /* 0x30 */ +}; + +#define RSB_CTRL_SOFT_RST (1 << 0) +#define RSB_CTRL_START_TRANS (1 << 7) + +#define RSB_STAT_TOVER_INT (1 << 0) +#define RSB_STAT_TERR_INT (1 << 1) +#define RSB_STAT_LBSY_INT (1 << 2) + +#define RSB_DMCR_DEVICE_MODE_START (1 << 31) + +#define RSB_CMD_BYTE_WRITE 0x4e +#define RSB_CMD_BYTE_READ 0x8b +#define RSB_CMD_SET_RTSADDR 0xe8 + +#define RSB_DEVADDR_RUNTIME_ADDR(x) ((x) << 16) +#define RSB_DEVADDR_DEVICE_ADDR(x) ((x) << 0) + +void rsb_init(void); +int rsb_set_device_mode(u32 device_mode_data); +int rsb_set_device_address(u16 device_addr, u16 runtime_addr); +int rsb_write(const u16 runtime_device_addr, const u8 reg_addr, u8 data); +int rsb_read(const u16 runtime_device_addr, const u8 reg_addr, u8 *data); + +#endif

Based on the register / dram_para headers from the Allwinner u-boot / linux sources + the init sequences from boot0.

Signed-off-by: Hans de Goede hdegoede@redhat.com --- arch/arm/cpu/armv7/sunxi/Makefile | 1 + arch/arm/cpu/armv7/sunxi/board.c | 3 +- arch/arm/cpu/armv7/sunxi/dram_sun8i.c | 346 ++++++++++++++++++++++++++ arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 4 + arch/arm/include/asm/arch-sunxi/dram.h | 2 + arch/arm/include/asm/arch-sunxi/dram_sun8i.h | 266 ++++++++++++++++++++ board/sunxi/Kconfig | 3 +- include/configs/sun8i.h | 2 + 8 files changed, 625 insertions(+), 2 deletions(-) create mode 100644 arch/arm/cpu/armv7/sunxi/dram_sun8i.c create mode 100644 arch/arm/include/asm/arch-sunxi/dram_sun8i.h

diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile index 3e8975a..1e89937 100644 --- a/arch/arm/cpu/armv7/sunxi/Makefile +++ b/arch/arm/cpu/armv7/sunxi/Makefile @@ -33,6 +33,7 @@ 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 +obj-$(CONFIG_MACH_SUN8I) += dram_sun8i.o ifdef CONFIG_SPL_FEL obj-y += start.o endif diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c index 9b3e80c..bc98c56 100644 --- a/arch/arm/cpu/armv7/sunxi/board.c +++ b/arch/arm/cpu/armv7/sunxi/board.c @@ -114,7 +114,8 @@ void reset_cpu(ulong addr) /* do some early init */ void s_init(void) { -#if defined CONFIG_SPL_BUILD && defined CONFIG_MACH_SUN6I +#if defined CONFIG_SPL_BUILD && \ + (defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I) /* Magic (undocmented) value taken from boot0, without this DRAM * access gets messed up (seems cache related) */ setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800); diff --git a/arch/arm/cpu/armv7/sunxi/dram_sun8i.c b/arch/arm/cpu/armv7/sunxi/dram_sun8i.c new file mode 100644 index 0000000..df9ff1f --- /dev/null +++ b/arch/arm/cpu/armv7/sunxi/dram_sun8i.c @@ -0,0 +1,346 @@ +/* + * Sun8i platform dram controller init. + * + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * Note this code uses a lot of magic hex values, that is because this code + * simply replays the init sequence as done by the Allwinner boot0 code, so + * we do not know what these values mean. There are no symbolic constants for + * these magic values, since we do not know how to name them and making up + * names for them is not useful. + * + * The register-layout of the sunxi_mctl_phy_reg-s looks a lot like the one + * found in the TI Keystone2 documentation: + * http://www.ti.com/lit/ug/spruhn7a/spruhn7a.pdf + * "Table4-2 DDR3 PHY Registers" + * This may be used as a (possible) reference for future work / cleanups. + */ + +#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> + +static const struct dram_para dram_para = { + .clock = CONFIG_DRAM_CLK, + .type = 3, + .zq = CONFIG_DRAM_ZQ, + .odt_en = 1, + .para1 = 0, /* not used (only used when tpr13 bit 31 is set */ + .para2 = 0, /* not used (only used when tpr13 bit 31 is set */ + .mr0 = 6736, + .mr1 = 4, + .mr2 = 16, + .mr3 = 0, + /* tpr0 - 10 contain timing constants or-ed together in u32 vals */ + .tpr0 = 0x2ab83def, + .tpr1 = 0x18082356, + .tpr2 = 0x00034156, + .tpr3 = 0x448c5533, + .tpr4 = 0x08010d00, + .tpr5 = 0x0340b20f, + .tpr6 = 0x20d118cc, + .tpr7 = 0x14062485, + .tpr8 = 0x220d1d52, + .tpr9 = 0x1e078c22, + .tpr10 = 0x3c, + .tpr11 = 0, /* not used */ + .tpr12 = 0, /* not used */ + .tpr13 = 0x30000, +}; + +static void mctl_sys_init(void) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + + /* enable pll5, note the divide by 2 is deliberate! */ + clock_set_pll5(dram_para.clock * 1000000 / 2, 1, 2, + dram_para.tpr13 & 0x40000); + + /* deassert ahb mctl reset */ + setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL); + + /* enable ahb mctl clock */ + setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL); +} + +static void mctl_apply_odt_correction(u32 *reg, int correction) +{ + int val; + + val = (readl(reg) >> 8) & 0xff; + val += correction; + + /* clamp */ + if (val < 0) + val = 0; + else if (val > 255) + val = 255; + + clrsetbits_le32(reg, 0xff00, val << 8); +} + +static void mctl_init(u32 *bus_width) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + struct sunxi_mctl_phy_reg * const mctl_phy = + (struct sunxi_mctl_phy_reg *)SUNXI_DRAM_PHY0_BASE; + int correction; + + if (dram_para.tpr13 & 0x20) + writel(0x40b, &mctl_phy->dcr); + else + writel(0x1000040b, &mctl_phy->dcr); + + if (dram_para.clock >= 480) + writel(0x5c000, &mctl_phy->dllgcr); + else + writel(0xdc000, &mctl_phy->dllgcr); + + writel(0x0a003e3f, &mctl_phy->pgcr0); + writel(0x03008421, &mctl_phy->pgcr1); + + writel(dram_para.mr0, &mctl_phy->mr0); + writel(dram_para.mr1, &mctl_phy->mr1); + writel(dram_para.mr2, &mctl_phy->mr2); + writel(dram_para.mr3, &mctl_phy->mr3); + + if (!(dram_para.tpr13 & 0x10000)) { + clrsetbits_le32(&mctl_phy->dx0gcr, 0x3800, 0x2000); + clrsetbits_le32(&mctl_phy->dx1gcr, 0x3800, 0x2000); + } + + /* + * All the masking and shifting below converts what I assume are DDR + * timing constants from Allwinner dram_para tpr format to the actual + * timing registers format. + */ + + writel((dram_para.tpr0 & 0x000fffff), &mctl_phy->ptr2); + writel((dram_para.tpr1 & 0x1fffffff), &mctl_phy->ptr3); + writel((dram_para.tpr0 & 0x3ff00000) >> 2 | + (dram_para.tpr2 & 0x0003ffff), &mctl_phy->ptr4); + + writel(dram_para.tpr3, &mctl_phy->dtpr0); + writel(dram_para.tpr4, &mctl_phy->dtpr2); + + writel(0x01000081, &mctl_phy->dtcr); + + if (dram_para.clock <= 240 || !(dram_para.odt_en & 0x01)) { + clrbits_le32(&mctl_phy->dx0gcr, 0x600); + clrbits_le32(&mctl_phy->dx1gcr, 0x600); + } + if (dram_para.clock <= 240) { + writel(0, &mctl_phy->odtcr); + writel(0, &mctl_ctl->odtmap); + } + + writel(((dram_para.tpr5 & 0x0f00) << 12) | + ((dram_para.tpr5 & 0x00f8) << 9) | + ((dram_para.tpr5 & 0x0007) << 8), + &mctl_ctl->rfshctl0); + + writel(((dram_para.tpr5 & 0x0003f000) << 12) | + ((dram_para.tpr5 & 0x00fc0000) >> 2) | + ((dram_para.tpr5 & 0x3f000000) >> 16) | + ((dram_para.tpr6 & 0x0000003f) >> 0), + &mctl_ctl->dramtmg0); + + writel(((dram_para.tpr6 & 0x000007c0) << 10) | + ((dram_para.tpr6 & 0x0000f800) >> 3) | + ((dram_para.tpr6 & 0x003f0000) >> 16), + &mctl_ctl->dramtmg1); + + writel(((dram_para.tpr6 & 0x0fc00000) << 2) | + ((dram_para.tpr7 & 0x0000001f) << 16) | + ((dram_para.tpr7 & 0x000003e0) << 3) | + ((dram_para.tpr7 & 0x0000fc00) >> 10), + &mctl_ctl->dramtmg2); + + writel(((dram_para.tpr7 & 0x03ff0000) >> 16) | + ((dram_para.tpr6 & 0xf0000000) >> 16), + &mctl_ctl->dramtmg3); + + writel(((dram_para.tpr7 & 0x3c000000) >> 2 ) | + ((dram_para.tpr8 & 0x00000007) << 16) | + ((dram_para.tpr8 & 0x00000038) << 5) | + ((dram_para.tpr8 & 0x000003c0) >> 6), + &mctl_ctl->dramtmg4); + + writel(((dram_para.tpr8 & 0x00003c00) << 14) | + ((dram_para.tpr8 & 0x0003c000) << 2) | + ((dram_para.tpr8 & 0x00fc0000) >> 10) | + ((dram_para.tpr8 & 0x0f000000) >> 24), + &mctl_ctl->dramtmg5); + + writel(0x00000008, &mctl_ctl->dramtmg8); + + writel(((dram_para.tpr8 & 0xf0000000) >> 4) | + ((dram_para.tpr9 & 0x00007c00) << 6) | + ((dram_para.tpr9 & 0x000003e0) << 3) | + ((dram_para.tpr9 & 0x0000001f) >> 0), + &mctl_ctl->pitmg0); + + setbits_le32(&mctl_ctl->pitmg1, 0x80000); + + writel(((dram_para.tpr9 & 0x003f8000) << 9) | 0x2001, + &mctl_ctl->sched); + + writel((dram_para.mr0 << 16) | dram_para.mr1, &mctl_ctl->init3); + writel((dram_para.mr2 << 16) | dram_para.mr3, &mctl_ctl->init4); + + writel(0x00000000, &mctl_ctl->pimisc); + writel(0x80000000, &mctl_ctl->upd0); + + writel(((dram_para.tpr9 & 0xffc00000) >> 22) | + ((dram_para.tpr10 & 0x00000fff) << 16), + &mctl_ctl->rfshtmg); + + if (dram_para.tpr13 & 0x20) + writel(0x01040001, &mctl_ctl->mstr); + else + writel(0x01040401, &mctl_ctl->mstr); + + if (!(dram_para.tpr13 & 0x20000)) { + writel(0x00000002, &mctl_ctl->pwrctl); + writel(0x00008001, &mctl_ctl->pwrtmg); + } + + writel(0x00000001, &mctl_ctl->rfshctl3); + writel(0x00000001, &mctl_ctl->pimisc); + + /* deassert dram_clk_cfg reset */ + setbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_RST); + + setbits_le32(&mctl_com->ccr, 0x80000); + + /* zq stuff */ + writel((dram_para.zq >> 8) & 0xff, &mctl_phy->zqcr1); + + writel(0x00000003, &mctl_phy->pir); + udelay(10); + mctl_await_completion(&mctl_phy->pgsr0, 0x09, 0x09); + + writel(readl(&mctl_phy->zqsr0) | 0x10000000, &mctl_phy->zqcr2); + writel(dram_para.zq & 0xff, &mctl_phy->zqcr1); + + /* A23-v1.0 SDK uses 0xfdf3, A23-v2.0 SDK uses 0x5f3 */ + writel(0x000005f3, &mctl_phy->pir); + udelay(10); + mctl_await_completion(&mctl_phy->pgsr0, 0x03, 0x03); + + if (readl(&mctl_phy->dx1gsr0) & 0x1000000) { + *bus_width = 8; + writel(0, &mctl_phy->dx1gcr); + writel(dram_para.zq & 0xff, &mctl_phy->zqcr1); + writel(0x5f3, &mctl_phy->pir); + udelay(10000); + setbits_le32(&mctl_ctl->mstr, 0x1000); + } else + *bus_width = 16; + + correction = (dram_para.odt_en >> 8) & 0xff; + if (correction) { + if (dram_para.odt_en & 0x80000000) + correction = -correction; + + mctl_apply_odt_correction(&mctl_phy->dx0lcdlr1, correction); + mctl_apply_odt_correction(&mctl_phy->dx1lcdlr1, correction); + } + + mctl_await_completion(&mctl_ctl->statr, 0x01, 0x01); + + writel(0x08003e3f, &mctl_phy->pgcr0); + writel(0x00000000, &mctl_ctl->rfshctl3); +} + +unsigned long sunxi_dram_init(void) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + const u32 columns = 13; + u32 bus, bus_width, offset, page_size, rows; + + mctl_sys_init(); + mctl_init(&bus_width); + + if (bus_width == 16) { + page_size = 8; + bus = 1; + } else { + page_size = 7; + bus = 0; + } + + if (!(dram_para.tpr13 & 0x80000000)) { + /* Detect and set rows */ + writel(0x000310f4 | MCTL_CR_PAGE_SIZE(page_size), + &mctl_com->cr); + setbits_le32(&mctl_com->swonr, 0x0003ffff); + mctl_mem_fill(); + for (rows = 11; rows < 16; rows++) { + offset = 1 << (rows + columns + bus); + if (mctl_mem_matches(offset)) + break; + } + clrsetbits_le32(&mctl_com->cr, MCTL_CR_ROW_MASK, + MCTL_CR_ROW(rows)); + } else { + rows = (dram_para.para1 >> 16) & 0xff; + writel(((dram_para.para2 & 0x000000f0) << 11) | + ((rows - 1) << 4) | + ((dram_para.para1 & 0x0f000000) >> 22) | + 0x31000 | MCTL_CR_PAGE_SIZE(page_size), + &mctl_com->cr); + setbits_le32(&mctl_com->swonr, 0x0003ffff); + } + + /* Setup DRAM master priority? If this is left out things still work */ + writel(0x00000008, &mctl_com->mcr0_0); + writel(0x0001000d, &mctl_com->mcr1_0); + writel(0x00000004, &mctl_com->mcr0_1); + writel(0x00000080, &mctl_com->mcr1_1); + writel(0x00000004, &mctl_com->mcr0_2); + writel(0x00000019, &mctl_com->mcr1_2); + writel(0x00000004, &mctl_com->mcr0_3); + writel(0x00000080, &mctl_com->mcr1_3); + writel(0x00000004, &mctl_com->mcr0_4); + writel(0x01010040, &mctl_com->mcr1_4); + writel(0x00000004, &mctl_com->mcr0_5); + writel(0x0001002f, &mctl_com->mcr1_5); + writel(0x00000004, &mctl_com->mcr0_6); + writel(0x00010020, &mctl_com->mcr1_6); + writel(0x00000004, &mctl_com->mcr0_7); + writel(0x00010020, &mctl_com->mcr1_7); + writel(0x00000008, &mctl_com->mcr0_8); + writel(0x00000001, &mctl_com->mcr1_8); + writel(0x00000008, &mctl_com->mcr0_9); + writel(0x00000005, &mctl_com->mcr1_9); + writel(0x00000008, &mctl_com->mcr0_10); + writel(0x00000003, &mctl_com->mcr1_10); + writel(0x00000008, &mctl_com->mcr0_11); + writel(0x00000005, &mctl_com->mcr1_11); + writel(0x00000008, &mctl_com->mcr0_12); + writel(0x00000003, &mctl_com->mcr1_12); + writel(0x00000008, &mctl_com->mcr0_13); + writel(0x00000004, &mctl_com->mcr1_13); + writel(0x00000008, &mctl_com->mcr0_14); + writel(0x00000002, &mctl_com->mcr1_14); + writel(0x00000008, &mctl_com->mcr0_15); + writel(0x00000003, &mctl_com->mcr1_15); + writel(0x00010138, &mctl_com->bwcr); + + return 1 << (rows + columns + bus); +} diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h index 7d61216..45a199c 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h @@ -273,7 +273,11 @@ struct sunxi_ccm_reg { #define CCM_HDMI_CTRL_DDC_GATE (0x1 << 30) #define CCM_HDMI_CTRL_GATE (0x1 << 31)

+#ifndef CONFIG_MACH_SUN8I #define MBUS_CLK_DEFAULT 0x81000001 /* PLL6 / 2 */ +#else +#define MBUS_CLK_DEFAULT 0x81000003 /* PLL6 / 4 */ +#endif

#define CCM_PLL5_PATTERN 0xd1303333

diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h index a8a37d5..8d78029 100644 --- a/arch/arm/include/asm/arch-sunxi/dram.h +++ b/arch/arm/include/asm/arch-sunxi/dram.h @@ -18,6 +18,8 @@ /* dram regs definition */ #if defined(CONFIG_MACH_SUN6I) #include <asm/arch/dram_sun6i.h> +#elif defined(CONFIG_MACH_SUN8I) +#include <asm/arch/dram_sun8i.h> #else #include <asm/arch/dram_sun4i.h> #endif diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun8i.h b/arch/arm/include/asm/arch-sunxi/dram_sun8i.h new file mode 100644 index 0000000..246e009 --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/dram_sun8i.h @@ -0,0 +1,266 @@ +/* + * Sun8i platform dram controller register and constant defines + * + * (C) Copyright 2007-2013 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * CPL cplanxy@allwinnertech.com + * Jerry Wang wangflord@allwinnertech.com + * + * (C) Copyright 2014 Hans de Goede hdegoede@redhat.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SUNXI_DRAM_SUN8I_H +#define _SUNXI_DRAM_SUN8I_H + +struct dram_para { + u32 clock; + u32 type; + u32 zq; + u32 odt_en; + u32 para1; + u32 para2; + u32 mr0; + u32 mr1; + u32 mr2; + u32 mr3; + u32 tpr0; + u32 tpr1; + u32 tpr2; + u32 tpr3; + u32 tpr4; + u32 tpr5; + u32 tpr6; + u32 tpr7; + u32 tpr8; + u32 tpr9; + u32 tpr10; + u32 tpr11; + u32 tpr12; + u32 tpr13; +}; + +struct sunxi_mctl_com_reg { + u32 cr; /* 0x00 */ + u32 ccr; /* 0x04 controller configuration register */ + u32 dbgcr; /* 0x08 */ + u8 res0[0x4]; /* 0x0c */ + u32 mcr0_0; /* 0x10 */ + u32 mcr1_0; /* 0x14 */ + u32 mcr0_1; /* 0x18 */ + u32 mcr1_1; /* 0x1c */ + u32 mcr0_2; /* 0x20 */ + u32 mcr1_2; /* 0x24 */ + u32 mcr0_3; /* 0x28 */ + u32 mcr1_3; /* 0x2c */ + u32 mcr0_4; /* 0x30 */ + u32 mcr1_4; /* 0x34 */ + u32 mcr0_5; /* 0x38 */ + u32 mcr1_5; /* 0x3c */ + u32 mcr0_6; /* 0x40 */ + u32 mcr1_6; /* 0x44 */ + u32 mcr0_7; /* 0x48 */ + u32 mcr1_7; /* 0x4c */ + u32 mcr0_8; /* 0x50 */ + u32 mcr1_8; /* 0x54 */ + u32 mcr0_9; /* 0x58 */ + u32 mcr1_9; /* 0x5c */ + u32 mcr0_10; /* 0x60 */ + u32 mcr1_10; /* 0x64 */ + u32 mcr0_11; /* 0x68 */ + u32 mcr1_11; /* 0x6c */ + u32 mcr0_12; /* 0x70 */ + u32 mcr1_12; /* 0x74 */ + u32 mcr0_13; /* 0x78 */ + u32 mcr1_13; /* 0x7c */ + u32 mcr0_14; /* 0x80 */ + u32 mcr1_14; /* 0x84 */ + u32 mcr0_15; /* 0x88 */ + u32 mcr1_15; /* 0x8c */ + u32 bwcr; /* 0x90 */ + u32 maer; /* 0x94 */ + u8 res1[0x4]; /* 0x98 */ + u32 mcgcr; /* 0x9c */ + u32 bwctr; /* 0xa0 */ + u8 res2[0x4]; /* 0xa4 */ + u32 swonr; /* 0xa8 */ + u32 swoffr; /* 0xac */ +}; + +struct sunxi_mctl_ctl_reg { + u32 mstr; /* 0x00 */ + u32 statr; /* 0x04 */ + u8 res0[0x08]; /* 0x08 */ + u32 mrctrl0; /* 0x10 */ + u32 mrctrl1; /* 0x14 */ + u32 mrstatr; /* 0x18 */ + u8 res1[0x04]; /* 0x1c */ + u32 derateen; /* 0x20 */ + u32 deratenint; /* 0x24 */ + u8 res2[0x08]; /* 0x28 */ + u32 pwrctl; /* 0x30 */ + u32 pwrtmg; /* 0x34 */ + u8 res3[0x18]; /* 0x38 */ + u32 rfshctl0; /* 0x50 */ + u32 rfshctl1; /* 0x54 */ + u8 res4[0x8]; /* 0x58 */ + u32 rfshctl3; /* 0x60 */ + u32 rfshtmg; /* 0x64 */ + u8 res6[0x68]; /* 0x68 */ + u32 init0; /* 0xd0 */ + u32 init1; /* 0xd4 */ + u32 init2; /* 0xd8 */ + u32 init3; /* 0xdc */ + u32 init4; /* 0xe0 */ + u32 init5; /* 0xe4 */ + u8 res7[0x0c]; /* 0xe8 */ + u32 rankctl; /* 0xf4 */ + u8 res8[0x08]; /* 0xf8 */ + u32 dramtmg0; /* 0x100 */ + u32 dramtmg1; /* 0x104 */ + u32 dramtmg2; /* 0x108 */ + u32 dramtmg3; /* 0x10c */ + u32 dramtmg4; /* 0x110 */ + u32 dramtmg5; /* 0x114 */ + u32 dramtmg6; /* 0x118 */ + u32 dramtmg7; /* 0x11c */ + u32 dramtmg8; /* 0x120 */ + u8 res9[0x5c]; /* 0x124 */ + u32 zqctl0; /* 0x180 */ + u32 zqctl1; /* 0x184 */ + u32 zqctl2; /* 0x188 */ + u32 zqstat; /* 0x18c */ + u32 pitmg0; /* 0x190 */ + u32 pitmg1; /* 0x194 */ + u32 plpcfg0; /* 0x198 */ + u8 res10[0x04]; /* 0x19c */ + u32 upd0; /* 0x1a0 */ + u32 upd1; /* 0x1a4 */ + u32 upd2; /* 0x1a8 */ + u32 upd3; /* 0x1ac */ + u32 pimisc; /* 0x1b0 */ + u8 res11[0x1c]; /* 0x1b4 */ + u32 trainctl0; /* 0x1d0 */ + u32 trainctl1; /* 0x1d4 */ + u32 trainctl2; /* 0x1d8 */ + u32 trainstat; /* 0x1dc */ + u8 res12[0x60]; /* 0x1e0 */ + u32 odtcfg; /* 0x240 */ + u32 odtmap; /* 0x244 */ + u8 res13[0x08]; /* 0x248 */ + u32 sched; /* 0x250 */ + u8 res14[0x04]; /* 0x254 */ + u32 perfshpr0; /* 0x258 */ + u32 perfshpr1; /* 0x25c */ + u32 perflpr0; /* 0x260 */ + u32 perflpr1; /* 0x264 */ + u32 perfwr0; /* 0x268 */ + u32 perfwr1; /* 0x26c */ +}; + +struct sunxi_mctl_phy_reg { + u8 res0[0x04]; /* 0x00 */ + u32 pir; /* 0x04 */ + u32 pgcr0; /* 0x08 phy general configuration register */ + u32 pgcr1; /* 0x0c phy general configuration register */ + u32 pgsr0; /* 0x10 */ + u32 pgsr1; /* 0x14 */ + u32 dllgcr; /* 0x18 */ + u32 ptr0; /* 0x1c */ + u32 ptr1; /* 0x20 */ + u32 ptr2; /* 0x24 */ + u32 ptr3; /* 0x28 */ + u32 ptr4; /* 0x2c */ + u32 acmdlr; /* 0x30 */ + u32 acbdlr; /* 0x34 */ + u32 aciocr; /* 0x38 */ + u32 dxccr; /* 0x3c DATX8 common configuration register */ + u32 dsgcr; /* 0x40 dram system general config register */ + u32 dcr; /* 0x44 */ + u32 dtpr0; /* 0x48 dram timing parameters register 0 */ + u32 dtpr1; /* 0x4c dram timing parameters register 1 */ + u32 dtpr2; /* 0x50 dram timing parameters register 2 */ + u32 mr0; /* 0x54 mode register 0 */ + u32 mr1; /* 0x58 mode register 1 */ + u32 mr2; /* 0x5c mode register 2 */ + u32 mr3; /* 0x60 mode register 3 */ + u32 odtcr; /* 0x64 */ + u32 dtcr; /* 0x68 */ + u32 dtar0; /* 0x6c data training address register 0 */ + u32 dtar1; /* 0x70 data training address register 1 */ + u32 dtar2; /* 0x74 data training address register 2 */ + u32 dtar3; /* 0x78 data training address register 3 */ + u32 dtdr0; /* 0x7c */ + u32 dtdr1; /* 0x80 */ + u32 dtedr0; /* 0x84 */ + u32 dtedr1; /* 0x88 */ + u32 pgcr2; /* 0x8c */ + u8 res1[0x70]; /* 0x90 */ + u32 bistrr; /* 0x100 */ + u32 bistwcr; /* 0x104 */ + u32 bistmskr0; /* 0x108 */ + u32 bistmskr1; /* 0x10c */ + u32 bistmskr2; /* 0x110 */ + u32 bistlsr; /* 0x114 */ + u32 bistar0; /* 0x118 */ + u32 bistar1; /* 0x11c */ + u32 bistar2; /* 0x120 */ + u32 bistupdr; /* 0x124 */ + u32 bistgsr; /* 0x128 */ + u32 bistwer; /* 0x12c */ + u32 bistber0; /* 0x130 */ + u32 bistber1; /* 0x134 */ + u32 bistber2; /* 0x138 */ + u32 bistber3; /* 0x13c */ + u32 bistwcsr; /* 0x140 */ + u32 bistfwr0; /* 0x144 */ + u32 bistfwr1; /* 0x148 */ + u32 bistfwr2; /* 0x14c */ + u8 res2[0x30]; /* 0x150 */ + u32 zqcr0; /* 0x180 zq control register 0 */ + u32 zqcr1; /* 0x184 zq control register 1 */ + u32 zqsr0; /* 0x188 zq status register 0 */ + u32 zqsr1; /* 0x18c zq status register 1 */ + u32 zqcr2; /* 0x190 zq control register 2 */ + u8 res3[0x2c]; /* 0x194 */ + u32 dx0gcr; /* 0x1c0 */ + u32 dx0gsr0; /* 0x1c4 */ + u32 dx0gsr1; /* 0x1c8 */ + u32 dx0bdlr0; /* 0x1cc */ + u32 dx0bdlr1; /* 0x1d0 */ + u32 dx0bdlr2; /* 0x1d4 */ + u32 dx0bdlr3; /* 0x1d8 */ + u32 dx0bdlr4; /* 0x1dc */ + u32 dx0lcdlr0; /* 0x1e0 */ + u32 dx0lcdlr1; /* 0x1e4 */ + u32 dx0lcdlr2; /* 0x1e8 */ + u32 dx0mdlr; /* 0x1ec */ + u32 dx0gtr; /* 0x1f0 */ + u32 dx0gsr2; /* 0x1f4 */ + u8 res4[0x08]; /* 0x1f8 */ + u32 dx1gcr; /* 0x200 */ + u32 dx1gsr0; /* 0x204 */ + u32 dx1gsr1; /* 0x208 */ + u32 dx1bdlr0; /* 0x20c */ + u32 dx1bdlr1; /* 0x210 */ + u32 dx1bdlr2; /* 0x214 */ + u32 dx1bdlr3; /* 0x218 */ + u32 dx1bdlr4; /* 0x21c */ + u32 dx1lcdlr0; /* 0x220 */ + u32 dx1lcdlr1; /* 0x224 */ + u32 dx1lcdlr2; /* 0x228 */ + u32 dx1mdlr; /* 0x22c */ + u32 dx1gtr; /* 0x230 */ + u32 dx1gsr2; /* 0x234 */ +}; + +/* + * DRAM common (sunxi_mctl_com_reg) register constants. + */ +#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) ((x) << 8) + +#endif /* _SUNXI_DRAM_SUN8I_H */ diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig index 5bb2f58..5a88ba0 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -29,10 +29,11 @@ config MACH_SUN7I config MACH_SUN8I bool "sun8i (Allwinner A23)" select CPU_V7 + select SUPPORT_SPL

endchoice

-if MACH_SUN6I +if MACH_SUN6I || MACH_SUN8I

config DRAM_CLK int "sun6i dram clock speed" diff --git a/include/configs/sun8i.h b/include/configs/sun8i.h index 6f1fc48..792422d 100644 --- a/include/configs/sun8i.h +++ b/include/configs/sun8i.h @@ -12,6 +12,8 @@ /* * A23 specific configuration */ +#define CONFIG_CLK_FULL_SPEED 1008000000 + #define CONFIG_SYS_PROMPT "sun8i# "

/*

Now that we've sun8i dram-init support we can enable the SPL for sun8i boards.

While at it also replace CONFIG_DEFAULT_DEVICE_TREE with CONFIG_FDTFILE, the former is for u-boot's own fdt usage, which we do not use (yet), the later specifies the fdt to pass to the kernel, which is the one we want.

Signed-off-by: Hans de Goede hdegoede@redhat.com --- configs/Ippo_q8h_v5_defconfig | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/configs/Ippo_q8h_v5_defconfig b/configs/Ippo_q8h_v5_defconfig index 50c2f93..b8d3afe 100644 --- a/configs/Ippo_q8h_v5_defconfig +++ b/configs/Ippo_q8h_v5_defconfig @@ -1,8 +1,16 @@ +CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="CONS_INDEX=5" -CONFIG_ARM=y -CONFIG_ARCH_SUNXI=y -CONFIG_MACH_SUN8I=y -CONFIG_TARGET_IPPO_Q8H_V5=y -CONFIG_DEFAULT_DEVICE_TREE="sun8i-a23-ippo-q8h-v5.dtb" +CONFIG_FDTFILE="sun8i-a23-ippo-q8h-v5.dtb" CONFIG_VIDEO=n CONFIG_USB_KEYBOARD=n ++S:CONFIG_ARM=y ++S:CONFIG_ARCH_SUNXI=y ++S:CONFIG_MACH_SUN8I=y ++S:CONFIG_TARGET_IPPO_Q8H_V5=y ++S:CONFIG_DRAM_CLK=480 +# zq = 0xf777 ++S:CONFIG_DRAM_ZQ=63351 +# Wifi power ++S:CONFIG_AXP221_DLDO1_VOLT=3300 +# aldo1 is connected to VCC-IO, VCC-PD, VCC-USB and VCC-HP ++S:CONFIG_AXP221_ALDO1_VOLT=3000