[U-Boot] [PATCH v4 1/4] stv0991: Add basic stv0991 architecture support
Vikas Manocha
vikas.manocha at st.com
Tue Nov 18 02:30:25 CET 2014
stv0991 architecture support added. It contains the support for
following blocks
- Timer
- uart
Signed-off-by: Vikas Manocha <vikas.manocha at st.com>
---
Changes in v4:
- added maintainers info
- rebased to current master
Changes in v3:
- removed period from commit message
Changes in v2:
- corrected files license to GPL-2.0+
- replaced printf() usage with puts() for string print
arch/arm/Kconfig | 5 +
arch/arm/cpu/armv7/stv0991/Makefile | 9 ++
arch/arm/cpu/armv7/stv0991/clock.c | 27 +++++
arch/arm/cpu/armv7/stv0991/lowlevel.S | 12 +++
arch/arm/cpu/armv7/stv0991/pinmux.c | 48 +++++++++
arch/arm/cpu/armv7/stv0991/reset.c | 26 +++++
arch/arm/cpu/armv7/stv0991/timer.c | 114 ++++++++++++++++++++
arch/arm/include/asm/arch-stv0991/hardware.h | 73 +++++++++++++
arch/arm/include/asm/arch-stv0991/stv0991_cgu.h | 80 ++++++++++++++
arch/arm/include/asm/arch-stv0991/stv0991_creg.h | 82 ++++++++++++++
arch/arm/include/asm/arch-stv0991/stv0991_defs.h | 16 +++
arch/arm/include/asm/arch-stv0991/stv0991_gpt.h | 43 ++++++++
arch/arm/include/asm/arch-stv0991/stv0991_periph.h | 43 ++++++++
arch/arm/include/asm/arch-stv0991/stv0991_wdru.h | 28 +++++
board/st/stv0991/Kconfig | 23 ++++
board/st/stv0991/Makefile | 8 ++
board/st/stv0991/stv0991.c | 54 ++++++++++
configs/stv0991_defconfig | 3 +
include/configs/stv0991.h | 58 ++++++++++
19 files changed, 752 insertions(+)
create mode 100644 arch/arm/cpu/armv7/stv0991/Makefile
create mode 100644 arch/arm/cpu/armv7/stv0991/clock.c
create mode 100644 arch/arm/cpu/armv7/stv0991/lowlevel.S
create mode 100644 arch/arm/cpu/armv7/stv0991/pinmux.c
create mode 100644 arch/arm/cpu/armv7/stv0991/reset.c
create mode 100644 arch/arm/cpu/armv7/stv0991/timer.c
create mode 100644 arch/arm/include/asm/arch-stv0991/hardware.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_creg.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_defs.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_gpt.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_periph.h
create mode 100644 arch/arm/include/asm/arch-stv0991/stv0991_wdru.h
create mode 100644 board/st/stv0991/Kconfig
create mode 100644 board/st/stv0991/Makefile
create mode 100644 board/st/stv0991/stv0991.c
create mode 100644 configs/stv0991_defconfig
create mode 100644 include/configs/stv0991.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3955978..71faf5e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -339,6 +339,10 @@ config TARGET_SPEAR600
bool "Support spear600"
select CPU_ARM926EJS
+config TARGET_STV0991
+ bool "Support stv0991"
+ select CPU_V7
+
config TARGET_X600
bool "Support x600"
select CPU_ARM926EJS
@@ -932,6 +936,7 @@ source "board/spear/spear600/Kconfig"
source "board/spear/x600/Kconfig"
source "board/st-ericsson/snowball/Kconfig"
source "board/st-ericsson/u8500/Kconfig"
+source "board/st/stv0991/Kconfig"
source "board/sunxi/Kconfig"
source "board/syteco/jadecpu/Kconfig"
source "board/syteco/zmx25/Kconfig"
diff --git a/arch/arm/cpu/armv7/stv0991/Makefile b/arch/arm/cpu/armv7/stv0991/Makefile
new file mode 100644
index 0000000..95641d3
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/Makefile
@@ -0,0 +1,9 @@
+#
+# (C) Copyright 2014
+# Vikas Manocha, ST Microelectronics, vikas.manocha at stcom
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := timer.o clock.o pinmux.o reset.o
+obj-y += lowlevel.o
diff --git a/arch/arm/cpu/armv7/stv0991/clock.c b/arch/arm/cpu/armv7/stv0991/clock.c
new file mode 100644
index 0000000..aca6aba
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/clock.c
@@ -0,0 +1,27 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/stv0991_cgu.h>
+#include<asm/arch/stv0991_periph.h>
+
+static struct stv0991_cgu_regs *const stv0991_cgu_regs = \
+ (struct stv0991_cgu_regs *) (CGU_BASE_ADDR);
+
+void clock_setup(int peripheral)
+{
+ switch (peripheral) {
+ case UART_CLOCK_CFG:
+ writel(UART_CLK_CFG, &stv0991_cgu_regs->uart_freq);
+ break;
+ case ETH_CLOCK_CFG:
+ break;
+ default:
+ break;
+ }
+}
diff --git a/arch/arm/cpu/armv7/stv0991/lowlevel.S b/arch/arm/cpu/armv7/stv0991/lowlevel.S
new file mode 100644
index 0000000..6dafba3
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/lowlevel.S
@@ -0,0 +1,12 @@
+/*
+ * (C) Copyright 2014 stmicroelectronics
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <linux/linkage.h>
+
+ENTRY(lowlevel_init)
+ mov pc, lr
+ENDPROC(lowlevel_init)
diff --git a/arch/arm/cpu/armv7/stv0991/pinmux.c b/arch/arm/cpu/armv7/stv0991/pinmux.c
new file mode 100644
index 0000000..6d4414a
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/pinmux.c
@@ -0,0 +1,48 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <asm/arch/stv0991_creg.h>
+#include <asm/arch/stv0991_periph.h>
+#include <asm/arch/hardware.h>
+
+static struct stv0991_creg *const stv0991_creg = \
+ (struct stv0991_creg *)CREG_BASE_ADDR;
+
+int stv0991_pinmux_config(int peripheral)
+{
+ switch (peripheral) {
+ case UART_GPIOC_30_31:
+ /* SSDA/SSCL pad muxing to UART Rx/Dx */
+ writel((readl(&stv0991_creg->mux12) & GPIOC_31_MUX_MASK) |
+ CFG_GPIOC_31_UART_RX,
+ &stv0991_creg->mux12);
+ writel((readl(&stv0991_creg->mux12) & GPIOC_30_MUX_MASK) |
+ CFG_GPIOC_30_UART_TX,
+ &stv0991_creg->mux12);
+ /* SSDA/SSCL pad config to push pull*/
+ writel((readl(&stv0991_creg->cfg_pad6) & GPIOC_31_MODE_MASK) |
+ CFG_GPIOC_31_MODE_PP,
+ &stv0991_creg->cfg_pad6);
+ writel((readl(&stv0991_creg->cfg_pad6) & GPIOC_30_MODE_MASK) |
+ CFG_GPIOC_30_MODE_HIGH,
+ &stv0991_creg->cfg_pad6);
+ break;
+ case UART_GPIOB_16_17:
+ /* ethernet rx_6/7 to UART Rx/Dx */
+ writel((readl(&stv0991_creg->mux7) & GPIOB_17_MUX_MASK) |
+ CFG_GPIOB_17_UART_RX,
+ &stv0991_creg->mux7);
+ writel((readl(&stv0991_creg->mux7) & GPIOB_16_MUX_MASK) |
+ CFG_GPIOB_16_UART_TX,
+ &stv0991_creg->mux7);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
diff --git a/arch/arm/cpu/armv7/stv0991/reset.c b/arch/arm/cpu/armv7/stv0991/reset.c
new file mode 100644
index 0000000..3384b32
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/reset.c
@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/stv0991_wdru.h>
+void reset_cpu(ulong ignored)
+{
+ puts("System is going to reboot ...\n");
+ /*
+ * This 1 second delay will allow the above message
+ * to be printed before reset
+ */
+ udelay((1000 * 1000));
+
+ /* Setting bit 1 of the WDRU unit will reset the SoC */
+ writel(WDRU_RST_SYS, &stv0991_wd_ru_ptr->wdru_ctrl1);
+
+ /* system will restart */
+ while (1)
+ ;
+}
diff --git a/arch/arm/cpu/armv7/stv0991/timer.c b/arch/arm/cpu/armv7/stv0991/timer.c
new file mode 100644
index 0000000..8654b8b
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/timer.c
@@ -0,0 +1,114 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch-stv0991/hardware.h>
+#include <asm/arch-stv0991/stv0991_cgu.h>
+#include <asm/arch-stv0991/stv0991_gpt.h>
+
+static struct stv0991_cgu_regs *const stv0991_cgu_regs = \
+ (struct stv0991_cgu_regs *) (CGU_BASE_ADDR);
+
+#define READ_TIMER() (readl(&gpt1_regs_ptr->cnt) & GPT_FREE_RUNNING)
+#define GPT_RESOLUTION (CONFIG_STV0991_HZ_CLOCK / CONFIG_STV0991_HZ)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define timestamp gd->arch.tbl
+#define lastdec gd->arch.lastinc
+
+int timer_init(void)
+{
+ /* Timer1 clock configuration */
+ writel(TIMER1_CLK_CFG, &stv0991_cgu_regs->tim_freq);
+ writel(readl(&stv0991_cgu_regs->cgu_enable_2) |
+ TIMER1_CLK_EN, &stv0991_cgu_regs->cgu_enable_2);
+
+ /* Stop the timer */
+ writel(readl(&gpt1_regs_ptr->cr1) & ~GPT_CR1_CEN, &gpt1_regs_ptr->cr1);
+ writel(GPT_PRESCALER_128, &gpt1_regs_ptr->psc);
+ /* Configure timer for auto-reload */
+ writel(readl(&gpt1_regs_ptr->cr1) | GPT_MODE_AUTO_RELOAD,
+ &gpt1_regs_ptr->cr1);
+
+ /* load value for free running */
+ writel(GPT_FREE_RUNNING, &gpt1_regs_ptr->arr);
+
+ /* start timer */
+ writel(readl(&gpt1_regs_ptr->cr1) | GPT_CR1_CEN,
+ &gpt1_regs_ptr->cr1);
+
+ /* Reset the timer */
+ lastdec = READ_TIMER();
+ timestamp = 0;
+
+ return 0;
+}
+
+/*
+ * timer without interrupts
+ */
+ulong get_timer(ulong base)
+{
+ return (get_timer_masked() / GPT_RESOLUTION) - base;
+}
+
+void __udelay(unsigned long usec)
+{
+ ulong tmo;
+ ulong start = get_timer_masked();
+ ulong tenudelcnt = CONFIG_STV0991_HZ_CLOCK / (1000 * 100);
+ ulong rndoff;
+
+ rndoff = (usec % 10) ? 1 : 0;
+
+ /* tenudelcnt timer tick gives 10 microsecconds delay */
+ tmo = ((usec / 10) + rndoff) * tenudelcnt;
+
+ while ((ulong) (get_timer_masked() - start) < tmo)
+ ;
+}
+
+ulong get_timer_masked(void)
+{
+ ulong now = READ_TIMER();
+
+ if (now >= lastdec) {
+ /* normal mode */
+ timestamp += now - lastdec;
+ } else {
+ /* we have an overflow ... */
+ timestamp += now + GPT_FREE_RUNNING - lastdec;
+ }
+ lastdec = now;
+
+ return timestamp;
+}
+
+void udelay_masked(unsigned long usec)
+{
+ return udelay(usec);
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On ARM it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+ return get_timer(0);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+ return CONFIG_STV0991_HZ;
+}
diff --git a/arch/arm/include/asm/arch-stv0991/hardware.h b/arch/arm/include/asm/arch-stv0991/hardware.h
new file mode 100644
index 0000000..3f6bcaf
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/hardware.h
@@ -0,0 +1,73 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, STMicroelectronics, <vikas.manocha at st.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_HARDWARE_H
+#define _ASM_ARCH_HARDWARE_H
+
+/* STV0991 */
+#define SRAM0_BASE_ADDR 0x00000000UL
+#define SRAM1_BASE_ADDR 0x00068000UL
+#define SRAM2_BASE_ADDR 0x000D0000UL
+#define SRAM3_BASE_ADDR 0x00138000UL
+#define CFS_SRAM0_BASE_ADDR 0x00198000UL
+#define CFS_SRAM1_BASE_ADDR 0x001B8000UL
+#define FAST_SRAM_BASE_ADDR 0x001D8000UL
+#define FLASH_BASE_ADDR 0x40000000UL
+#define PL310_BASE_ADDR 0x70000000UL
+#define HSAXIM_BASE_ADDR 0x70100000UL
+#define IMGSS_BASE_ADDR 0x70200000UL
+#define ADC_BASE_ADDR 0x80000000UL
+#define GPIOA_BASE_ADDR 0x80001000UL
+#define GPIOB_BASE_ADDR 0x80002000UL
+#define GPIOC_BASE_ADDR 0x80003000UL
+#define HDM_BASE_ADDR 0x80004000UL
+#define THSENS_BASE_ADDR 0x80200000UL
+#define GPTIMER2_BASE_ADDR 0x80201000UL
+#define GPTIMER1_BASE_ADDR 0x80202000UL
+#define QSPI_BASE_ADDR 0x80203000UL
+#define CGU_BASE_ADDR 0x80204000UL
+#define CREG_BASE_ADDR 0x80205000UL
+#define PEC_BASE_ADDR 0x80206000UL
+#define WDRU_BASE_ADDR 0x80207000UL
+#define BSEC_BASE_ADDR 0x80208000UL
+#define DAP_ROM_BASE_ADDR 0x80210000UL
+#define SOC_CTI_BASE_ADDR 0x80211000UL
+#define TPIU_BASE_ADDR 0x80212000UL
+#define TMC_ETF_BASE_ADDR 0x80213000UL
+#define R4_ETM_BASE_ADDR 0x80214000UL
+#define R4_CTI_BASE_ADDR 0x80215000UL
+#define R4_DBG_BASE_ADDR 0x80216000UL
+#define GMAC_BASE_ADDR 0x80300000UL
+#define RNSS_BASE_ADDR 0x80302000UL
+#define CRYP_BASE_ADDR 0x80303000UL
+#define HASH_BASE_ADDR 0x80304000UL
+#define GPDMA_BASE_ADDR 0x80305000UL
+#define ISA_BASE_ADDR 0x8032A000UL
+#define HCI_BASE_ADDR 0x80400000UL
+#define I2C1_BASE_ADDR 0x80401000UL
+#define I2C2_BASE_ADDR 0x80402000UL
+#define SAI_BASE_ADDR 0x80403000UL
+#define USI_BASE_ADDR 0x80404000UL
+#define SPI1_BASE_ADDR 0x80405000UL
+#define UART_BASE_ADDR 0x80406000UL
+#define SPI2_BASE_ADDR 0x80500000UL
+#define CAN_BASE_ADDR 0x80501000UL
+#define USART1_BASE_ADDR 0x80502000UL
+#define USART2_BASE_ADDR 0x80503000UL
+#define USART3_BASE_ADDR 0x80504000UL
+#define USART4_BASE_ADDR 0x80505000UL
+#define USART5_BASE_ADDR 0x80506000UL
+#define USART6_BASE_ADDR 0x80507000UL
+#define SDI2_BASE_ADDR 0x80600000UL
+#define SDI1_BASE_ADDR 0x80601000UL
+#define VICA_BASE_ADDR 0x81000000UL
+#define VICB_BASE_ADDR 0x81001000UL
+#define STM_CHANNELS_BASE_ADDR 0x81100000UL
+#define STM_BASE_ADDR 0x81110000UL
+#define SROM_BASE_ADDR 0xFFFF0000UL
+
+#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h b/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
new file mode 100644
index 0000000..4926395
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_cgu.h
@@ -0,0 +1,80 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _STV0991_CGU_H
+#define _STV0991_CGU_H
+
+struct stv0991_cgu_regs {
+ u32 cpu_freq; /* offset 0x0 */
+ u32 icn2_freq; /* offset 0x4 */
+ u32 dma_freq; /* offset 0x8 */
+ u32 isp_freq; /* offset 0xc */
+ u32 h264_freq; /* offset 0x10 */
+ u32 osif_freq; /* offset 0x14 */
+ u32 ren_freq; /* offset 0x18 */
+ u32 tim_freq; /* offset 0x1c */
+ u32 sai_freq; /* offset 0x20 */
+ u32 eth_freq; /* offset 0x24 */
+ u32 i2c_freq; /* offset 0x28 */
+ u32 spi_freq; /* offset 0x2c */
+ u32 uart_freq; /* offset 0x30 */
+ u32 qspi_freq; /* offset 0x34 */
+ u32 sdio_freq; /* offset 0x38 */
+ u32 usi_freq; /* offset 0x3c */
+ u32 can_line_freq; /* offset 0x40 */
+ u32 debug_freq; /* offset 0x44 */
+ u32 trace_freq; /* offset 0x48 */
+ u32 stm_freq; /* offset 0x4c */
+ u32 eth_ctrl; /* offset 0x50 */
+ u32 reserved[3]; /* offset 0x54 */
+ u32 osc_ctrl; /* offset 0x60 */
+ u32 pll1_ctrl; /* offset 0x64 */
+ u32 pll1_freq; /* offset 0x68 */
+ u32 pll1_fract; /* offset 0x6c */
+ u32 pll1_spread; /* offset 0x70 */
+ u32 pll1_status; /* offset 0x74 */
+ u32 pll2_ctrl; /* offset 0x78 */
+ u32 pll2_freq; /* offset 0x7c */
+ u32 pll2_fract; /* offset 0x80 */
+ u32 pll2_spread; /* offset 0x84 */
+ u32 pll2_status; /* offset 0x88 */
+ u32 cgu_enable_1; /* offset 0x8c */
+ u32 cgu_enable_2; /* offset 0x90 */
+ u32 cgu_isp_pulse; /* offset 0x94 */
+ u32 cgu_h264_pulse; /* offset 0x98 */
+ u32 cgu_osif_pulse; /* offset 0x9c */
+ u32 cgu_ren_pulse; /* offset 0xa0 */
+
+};
+
+/* CGU Timer */
+#define CLK_TMR_OSC 0
+#define CLK_TMR_MCLK 1
+#define CLK_TMR_PLL1 2
+#define CLK_TMR_PLL2 3
+#define MDIV_SHIFT_TMR 3
+#define DIV_SHIFT_TMR 6
+
+#define TIMER1_CLK_CFG (0 << DIV_SHIFT_TMR \
+ | 0 << MDIV_SHIFT_TMR | CLK_TMR_MCLK)
+
+/* Clock Enable/Disable */
+
+#define TIMER1_CLK_EN (1 << 15)
+
+/* CGU Uart config */
+#define CLK_UART_MCLK 0
+#define CLK_UART_PLL1 1
+#define CLK_UART_PLL2 2
+
+#define MDIV_SHIFT_UART 3
+#define DIV_SHIFT_UART 6
+
+#define UART_CLK_CFG (4 << DIV_SHIFT_UART \
+ | 1 << MDIV_SHIFT_UART | CLK_UART_MCLK)
+
+#endif
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_creg.h b/arch/arm/include/asm/arch-stv0991/stv0991_creg.h
new file mode 100644
index 0000000..045dbfe
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_creg.h
@@ -0,0 +1,82 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _STV0991_CREG_H
+#define _STV0991_CREG_H
+
+struct stv0991_creg {
+ u32 version; /* offset 0x0 */
+ u32 hdpctl; /* offset 0x4 */
+ u32 hdpval; /* offset 0x8 */
+ u32 hdpgposet; /* offset 0xc */
+ u32 hdpgpoclr; /* offset 0x10 */
+ u32 hdpgpoval; /* offset 0x14 */
+ u32 stm_mux; /* offset 0x18 */
+ u32 sysctrl_1; /* offset 0x1c */
+ u32 sysctrl_2; /* offset 0x20 */
+ u32 sysctrl_3; /* offset 0x24 */
+ u32 sysctrl_4; /* offset 0x28 */
+ u32 reserved_1[0x35]; /* offset 0x2C-0xFC */
+ u32 mux1; /* offset 0x100 */
+ u32 mux2; /* offset 0x104 */
+ u32 mux3; /* offset 0x108 */
+ u32 mux4; /* offset 0x10c */
+ u32 mux5; /* offset 0x110 */
+ u32 mux6; /* offset 0x114 */
+ u32 mux7; /* offset 0x118 */
+ u32 mux8; /* offset 0x11c */
+ u32 mux9; /* offset 0x120 */
+ u32 mux10; /* offset 0x124 */
+ u32 mux11; /* offset 0x128 */
+ u32 mux12; /* offset 0x12c */
+ u32 mux13; /* offset 0x130 */
+ u32 reserved_2[0x33]; /* offset 0x134-0x1FC */
+ u32 cfg_pad1; /* offset 0x200 */
+ u32 cfg_pad2; /* offset 0x204 */
+ u32 cfg_pad3; /* offset 0x208 */
+ u32 cfg_pad4; /* offset 0x20c */
+ u32 cfg_pad5; /* offset 0x210 */
+ u32 cfg_pad6; /* offset 0x214 */
+ u32 cfg_pad7; /* offset 0x218 */
+ u32 reserved_3[0x39]; /* offset 0x21C-0x2FC */
+ u32 vdd_pad1; /* offset 0x300 */
+ u32 vdd_pad2; /* offset 0x304 */
+ u32 reserved_4[0x3e]; /* offset 0x308-0x3FC */
+ u32 vdd_comp1; /* offset 0x400 */
+};
+
+/* CREG MUX 12 register */
+#define GPIOC_30_MUX_SHIFT 24
+#define GPIOC_30_MUX_MASK ~(1 << GPIOC_30_MUX_SHIFT)
+#define CFG_GPIOC_30_UART_TX (1 << GPIOC_30_MUX_SHIFT)
+
+#define GPIOC_31_MUX_SHIFT 28
+#define GPIOC_31_MUX_MASK ~(1 << GPIOC_31_MUX_SHIFT)
+#define CFG_GPIOC_31_UART_RX (1 << GPIOC_31_MUX_SHIFT)
+
+/* CREG MUX 7 register */
+#define GPIOB_16_MUX_SHIFT 0
+#define GPIOB_16_MUX_MASK ~(1 << GPIOB_16_MUX_SHIFT)
+#define CFG_GPIOB_16_UART_TX (1 << GPIOB_16_MUX_SHIFT)
+
+#define GPIOB_17_MUX_SHIFT 4
+#define GPIOB_17_MUX_MASK ~(1 << GPIOB_17_MUX_SHIFT)
+#define CFG_GPIOB_17_UART_RX (1 << GPIOB_17_MUX_SHIFT)
+
+/* CREG CFG_PAD6 register */
+
+#define GPIOC_31_MODE_SHIFT 30
+#define GPIOC_31_MODE_MASK ~(1 << GPIOC_31_MODE_SHIFT)
+#define CFG_GPIOC_31_MODE_OD (0 << GPIOC_31_MODE_SHIFT)
+#define CFG_GPIOC_31_MODE_PP (1 << GPIOC_31_MODE_SHIFT)
+
+#define GPIOC_30_MODE_SHIFT 28
+#define GPIOC_30_MODE_MASK ~(1 << GPIOC_30_MODE_SHIFT)
+#define CFG_GPIOC_30_MODE_LOW (0 << GPIOC_30_MODE_SHIFT)
+#define CFG_GPIOC_30_MODE_HIGH (1 << GPIOC_30_MODE_SHIFT)
+
+#endif
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_defs.h b/arch/arm/include/asm/arch-stv0991/stv0991_defs.h
new file mode 100644
index 0000000..1151378
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_defs.h
@@ -0,0 +1,16 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __STV0991_DEFS_H__
+#define __STV0991_DEFS_H__
+#include <asm/arch/stv0991_periph.h>
+
+extern int stv0991_pinmux_config(enum periph_id);
+extern int clock_setup(enum periph_clock);
+
+#endif
+
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h b/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h
new file mode 100644
index 0000000..abd7257
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h
@@ -0,0 +1,43 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _STV0991_GPT_H
+#define _STV0991_GPT_H
+
+#include <asm/arch-stv0991/hardware.h>
+
+struct gpt_regs {
+ u32 cr1;
+ u32 cr2;
+ u32 reserved_1;
+ u32 dier; /* dma_int_en */
+ u32 sr; /* status reg */
+ u32 egr; /* event gen */
+ u32 reserved_2[3]; /* offset 0x18--0x20*/
+ u32 cnt;
+ u32 psc;
+ u32 arr;
+};
+
+struct gpt_regs *const gpt1_regs_ptr =
+ (struct gpt_regs *) GPTIMER1_BASE_ADDR;
+
+/* Timer control1 register */
+#define GPT_CR1_CEN 0x0001
+#define GPT_MODE_AUTO_RELOAD (1 << 7)
+
+/* Timer prescalar reg */
+#define GPT_PRESCALER_128 0x128
+
+/* Auto reload register for free running config */
+#define GPT_FREE_RUNNING 0xFFFF
+
+/* Timer, HZ specific defines */
+#define CONFIG_STV0991_HZ 1000
+#define CONFIG_STV0991_HZ_CLOCK (27*1000*1000)/GPT_PRESCALER_128
+
+#endif
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_periph.h b/arch/arm/include/asm/arch-stv0991/stv0991_periph.h
new file mode 100644
index 0000000..f723771
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_periph.h
@@ -0,0 +1,43 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARM_ARCH_PERIPH_H
+#define __ASM_ARM_ARCH_PERIPH_H
+
+/*
+ * Peripherals required for pinmux configuration. List will
+ * grow with support for more devices getting added.
+ * Numbering based on interrupt table.
+ *
+ */
+enum periph_id {
+ UART_GPIOC_30_31 = 0,
+ UART_GPIOB_16_17,
+ PERIPH_ID_I2C0,
+ PERIPH_ID_I2C1,
+ PERIPH_ID_I2C2,
+ PERIPH_ID_I2C3,
+ PERIPH_ID_I2C4,
+ PERIPH_ID_I2C5,
+ PERIPH_ID_I2C6,
+ PERIPH_ID_I2C7,
+ PERIPH_ID_SPI0,
+ PERIPH_ID_SPI1,
+ PERIPH_ID_SPI2,
+ PERIPH_ID_SDMMC0,
+ PERIPH_ID_SDMMC1,
+ PERIPH_ID_SDMMC2,
+ PERIPH_ID_SDMMC3,
+ PERIPH_ID_I2S1,
+};
+
+enum periph_clock {
+ UART_CLOCK_CFG = 0,
+ ETH_CLOCK_CFG,
+};
+
+#endif /* __ASM_ARM_ARCH_PERIPH_H */
diff --git a/arch/arm/include/asm/arch-stv0991/stv0991_wdru.h b/arch/arm/include/asm/arch-stv0991/stv0991_wdru.h
new file mode 100644
index 0000000..7e555a2
--- /dev/null
+++ b/arch/arm/include/asm/arch-stv0991/stv0991_wdru.h
@@ -0,0 +1,28 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _STV0991_WD_RST_H
+#define _STV0991_WD_RST_H
+#include <asm/arch-stv0991/hardware.h>
+
+struct stv0991_wd_ru {
+ u32 wdru_config;
+ u32 wdru_ctrl1;
+ u32 wdru_ctrl2;
+ u32 wdru_tim;
+ u32 wdru_count;
+ u32 wdru_stat;
+ u32 wdru_wrlock;
+};
+
+struct stv0991_wd_ru *const stv0991_wd_ru_ptr = \
+ (struct stv0991_wd_ru *)WDRU_BASE_ADDR;
+
+/* Watchdog control register */
+#define WDRU_RST_SYS 0x1
+
+#endif
diff --git a/board/st/stv0991/Kconfig b/board/st/stv0991/Kconfig
new file mode 100644
index 0000000..8bda349
--- /dev/null
+++ b/board/st/stv0991/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_STV0991
+
+config SYS_CPU
+ string
+ default "armv7"
+
+config SYS_BOARD
+ string
+ default "stv0991"
+
+config SYS_VENDOR
+ string
+ default "st"
+
+config SYS_SOC
+ string
+ default "stv0991"
+
+config SYS_CONFIG_NAME
+ string
+ default "stv0991"
+
+endif
diff --git a/board/st/stv0991/Makefile b/board/st/stv0991/Makefile
new file mode 100644
index 0000000..fb5169a
--- /dev/null
+++ b/board/st/stv0991/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2014
+# Vikas Manocha, ST Microelectronics, vikas.manocha at stcom
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := stv0991.o
diff --git a/board/st/stv0991/stv0991.c b/board/st/stv0991/stv0991.c
new file mode 100644
index 0000000..bdeb53c
--- /dev/null
+++ b/board/st/stv0991/stv0991.c
@@ -0,0 +1,54 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, ST Micoelectronics, vikas.manocha at st.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <asm/arch/stv0991_periph.h>
+#include <asm/arch/stv0991_defs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+void show_boot_progress(int progress)
+{
+ printf("%i\n", progress);
+}
+#endif
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+int board_init(void)
+{
+ return 0;
+}
+
+int board_uart_init(void)
+{
+ stv0991_pinmux_config(UART_GPIOC_30_31);
+ clock_setup(UART_CLOCK_CFG);
+ return 0;
+}
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int board_early_init_f(void)
+{
+ board_uart_init();
+ return 0;
+}
+#endif
+
+int dram_init(void)
+{
+ gd->ram_size = PHYS_SDRAM_1_SIZE;
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+}
diff --git a/configs/stv0991_defconfig b/configs/stv0991_defconfig
new file mode 100644
index 0000000..a05e991
--- /dev/null
+++ b/configs/stv0991_defconfig
@@ -0,0 +1,3 @@
+CONFIG_SYS_EXTRA_OPTIONS="stv0991"
+CONFIG_ARM=y
+CONFIG_TARGET_STV0991=y
diff --git a/include/configs/stv0991.h b/include/configs/stv0991.h
new file mode 100644
index 0000000..864a63f
--- /dev/null
+++ b/include/configs/stv0991.h
@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2014
+ * Vikas Manocha, STMicroelectronics, <vikas.manocha at st.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_STV0991_H
+#define __CONFIG_STV0991_H
+
+#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_EXCEPTION_VECTORS_HIGH
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_SYS_CORTEX_R4
+
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_SYS_NO_FLASH
+
+/* ram memory-related information */
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM_1 0x00000000
+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
+#define PHYS_SDRAM_1_SIZE 0x00198000
+
+#define CONFIG_ENV_SIZE 0x10000
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_ADDR \
+ (PHYS_SDRAM_1_SIZE - CONFIG_ENV_SIZE)
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 16 * 1024)
+
+/* serial port (PL011) configuration */
+#define CONFIG_SYS_SERIAL0 0x80406000
+#define CONFIG_PL011_SERIAL
+#define CONFIG_CONS_INDEX 0
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_PL01x_PORTS {(void *)CONFIG_SYS_SERIAL0}
+#define CONFIG_PL011_CLOCK (2700 * 1000)
+
+/* user interface */
+#define CONFIG_SYS_PROMPT "STV0991> "
+#define CONFIG_SYS_CBSIZE 256/* Console I/O Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
+ +sizeof(CONFIG_SYS_PROMPT) + 16)
+
+/* MISC */
+#define CONFIG_SYS_LOAD_ADDR 0x00000000
+#define CONFIG_SYS_INIT_RAM_SIZE 0x2000
+#define CONFIG_SYS_INIT_RAM_ADDR 0x00190000
+#define CONFIG_SYS_INIT_SP_OFFSET \
+ (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+/* U-boot Load Address */
+#define CONFIG_SYS_TEXT_BASE 0x00010000
+#define CONFIG_SYS_INIT_SP_ADDR \
+ (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+#endif /* __CONFIG_H */
--
1.7.9.5
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