* [PATCH 1/2] S5P DRAM support
2012-07-02 15:53 [PATCH 0/2] Very minimal support S5PV210 board (Tiny210) Alexey Galakhov
@ 2012-07-02 15:53 ` Alexey Galakhov
2012-07-02 15:53 ` [PATCH 2/2] Add FriendlyArm Tiny210 board (S5PV210) Alexey Galakhov
2012-07-04 6:51 ` [PATCH 0/2] Very minimal support S5PV210 board (Tiny210) Sascha Hauer
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Galakhov @ 2012-07-02 15:53 UTC (permalink / raw)
To: barebox; +Cc: Alexey Galakhov
Signed-off-by: Alexey Galakhov <agalakhov@gmail.com>
---
arch/arm/mach-samsung/Makefile | 2 +-
arch/arm/mach-samsung/include/mach/s3c-generic.h | 6 +
arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h | 3 +
arch/arm/mach-samsung/mem-s5pcxx.c | 320 +++++++++++++++++++++
4 files changed, 330 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/mach-samsung/mem-s5pcxx.c
diff --git a/arch/arm/mach-samsung/Makefile b/arch/arm/mach-samsung/Makefile
index d7344c8..6020587 100644
--- a/arch/arm/mach-samsung/Makefile
+++ b/arch/arm/mach-samsung/Makefile
@@ -2,5 +2,5 @@ obj-y += s3c-timer.o generic.o
obj-lowlevel-$(CONFIG_ARCH_S3C24xx) += lowlevel-s3c24x0.o
obj-lowlevel-$(CONFIG_ARCH_S5PCxx) += lowlevel-s5pcxx.o
obj-$(CONFIG_ARCH_S3C24xx) += gpio-s3c24x0.o s3c24xx-clocks.o mem-s3c24x0.o
-obj-$(CONFIG_ARCH_S5PCxx) += gpio-s5pcxx.o clocks-s5pcxx.o
+obj-$(CONFIG_ARCH_S5PCxx) += gpio-s5pcxx.o clocks-s5pcxx.o mem-s5pcxx.o
obj-$(CONFIG_S3C_LOWLEVEL_INIT) += $(obj-lowlevel-y)
diff --git a/arch/arm/mach-samsung/include/mach/s3c-generic.h b/arch/arm/mach-samsung/include/mach/s3c-generic.h
index 11b083d..329c2b4 100644
--- a/arch/arm/mach-samsung/include/mach/s3c-generic.h
+++ b/arch/arm/mach-samsung/include/mach/s3c-generic.h
@@ -24,6 +24,8 @@
* MA 02111-1307 USA
*/
+#include <common.h>
+
uint32_t s3c_get_mpllclk(void);
uint32_t s3c_get_upllclk(void);
uint32_t s3c_get_fclk(void);
@@ -40,4 +42,8 @@ void s3c24xx_disable_second_sdram_bank(void);
#ifdef CONFIG_ARCH_S5PCxx
void s5p_init_pll(void);
+void s5p_init_dram_bank_lpddr(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16);
+void s5p_init_dram_bank_lpddr2(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16);
+void s5p_init_dram_bank_ddr2(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16);
+uint32_t s5p_get_memory_size(void);
#endif
diff --git a/arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h b/arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h
index cb05527..248f868 100644
--- a/arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h
+++ b/arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h
@@ -47,3 +47,6 @@
#define S3C_UART3_SIZE 0x400
#define S3C_UART_HAS_UBRDIVSLOT
#define S3C_UART_HAS_UINTM
+
+#define S5P_DMC0_BASE 0xF0000000
+#define S5P_DMC1_BASE 0xF1400000
diff --git a/arch/arm/mach-samsung/mem-s5pcxx.c b/arch/arm/mach-samsung/mem-s5pcxx.c
new file mode 100644
index 0000000..943f691
--- /dev/null
+++ b/arch/arm/mach-samsung/mem-s5pcxx.c
@@ -0,0 +1,320 @@
+/*
+ * Copyright (C) 2012 Alexey Galakhov
+ *
+ * Based on code from u-boot found somewhere on the web
+ * that seems to originate from Samsung
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <io.h>
+#include <init.h>
+#include <mach/s3c-generic.h>
+#include <mach/s3c-iomap.h>
+
+#define S5P_DMC_CONCONTROL 0x00
+#define S5P_DMC_MEMCONTROL 0x04
+#define S5P_DMC_MEMCONFIG0 0x08
+#define S5P_DMC_MEMCONFIG1 0x0C
+#define S5P_DMC_DIRECTCMD 0x10
+#define S5P_DMC_PRECHCONFIG 0x14
+#define S5P_DMC_PHYCONTROL0 0x18
+#define S5P_DMC_PHYCONTROL1 0x1C
+#define S5P_DMC_PWRDNCONFIG 0x28
+#define S5P_DMC_TIMINGAREF 0x30
+#define S5P_DMC_TIMINGROW 0x34
+#define S5P_DMC_TIMINGDATA 0x38
+#define S5P_DMC_TIMINGPOWER 0x3C
+#define S5P_DMC_PHYSTATUS 0x40
+#define S5P_DMC_MRSTATUS 0x54
+
+/* DRAM commands */
+#define CMD(x) ((x) << 24)
+#define BANK(x) ((x) << 16)
+#define CHIP(x) ((x) << 20)
+#define ADDR(x) (x)
+
+/**
+ * MR definition:
+ * 1 11
+ * 2 1098 7654 3210
+ * | | ^^^- burst length, 010=4, 011=8
+ * | | ^- burst type 0=sequnential, 1=interleaved
+ * | ^^^-- CAS latency
+ * | ^----- test, 0=normal, 1=test
+ * |^---- DLL reset, 1=yes
+ * ^^^----- WR, 1=2, 2=3 etc.
+ * ^------- PD, 0=fast exit, 1=low power
+ *
+ * EMR1 definition:
+ * 1 11
+ * 2 1098 7654 3210
+ * | ^- DLL, 0=enable
+ * | ^-- output strength, 0=full, 1=reduced
+ * |^.. .^--- Rtt, 00=off, 01=75, 10=150, 11=50 Ohm
+ * | ^^ ^-- Posted CAS# AL, 0-6
+ * ^^ ^------ OCD: 000=OCD exit, 111=enable defaults
+ * ^------ DQS#, 0=enable, 1=disable
+ * ^------- RDQS enable, 0=no, 1=yes
+ * ^-------- outputs, 0=enabled, 1=disabled
+ *
+ * EMR2 definition:
+ * bit 7
+ * 1 1
+ * 2 1098 7654 3210
+ * ^-- SRT, 0=1x (0-85 deg.C), 1=2x (>85 deg.C)
+ * all other bits = 0
+ *
+ * EMR3 definition: all bits 0
+ */
+
+#define MRS CMD(0x0)
+#define PALL CMD(0x1)
+#define PRE CMD(0x2)
+#define DPD CMD(0x3)
+#define REFS CMD(0x4)
+#define REFA CMD(0x5)
+#define CKEL CMD(0x6)
+#define NOP CMD(0x7)
+#define REFSX CMD(0x8)
+#define MRR CMD(0x9)
+
+#define EMRS1 (MRS | BANK(1))
+#define EMRS2 (MRS | BANK(2))
+#define EMRS3 (MRS | BANK(3))
+
+/* Burst is (1 << S5P_DRAM_BURST), i.e. S5P_DRAM_BURST=2 for burst 4 */
+#ifndef S5P_DRAM_BURST
+/* (LP)DDR2 supports burst 4 only, make it default */
+# define S5P_DRAM_BURST 2
+#endif
+
+/**
+ * Initialization sequences for different kinds of DRAM
+ */
+#define dcmd(x) writel((x) | CHIP(chip), base + S5P_DMC_DIRECTCMD)
+
+static void __bare_init s5p_dram_init_seq_lpddr(phys_addr_t base, unsigned chip)
+{
+ const uint32_t emr = 0x400; /* DQS disable */
+ const uint32_t mr = (((S5P_DRAM_WR) - 1) << 9)
+ | ((S5P_DRAM_CAS) << 4)
+ | (S5P_DRAM_BURST);
+ /* TODO this sequence is untested */
+ dcmd(PALL); dcmd(REFA); dcmd(REFA);
+ dcmd(MRS | ADDR(mr));
+ dcmd(EMRS1 | ADDR(emr));
+}
+
+static void __bare_init s5p_dram_init_seq_lpddr2(phys_addr_t base, unsigned chip)
+{
+ const uint32_t mr = (((S5P_DRAM_WR) - 1) << 9)
+ | ((S5P_DRAM_CAS) << 4)
+ | (S5P_DRAM_BURST);
+ /* TODO this sequence is untested */
+ dcmd(NOP);
+ dcmd(MRS | ADDR(mr));
+ do {
+ dcmd(MRR);
+ } while (readl(base + S5P_DMC_MRSTATUS) & 0x01); /* poll DAI */
+}
+
+static void __bare_init s5p_dram_init_seq_ddr2(phys_addr_t base, unsigned chip)
+{
+ const uint32_t emr = 0x400; /* DQS disable */
+ const uint32_t mr = (((S5P_DRAM_WR) - 1) << 9)
+ | ((S5P_DRAM_CAS) << 4)
+ | (S5P_DRAM_BURST);
+ dcmd(NOP);
+ /* FIXME wait here? JEDEC recommends but nobody does */
+ dcmd(PALL); dcmd(EMRS2); dcmd(EMRS3);
+ dcmd(EMRS1 | ADDR(emr)); /* DQS disable */
+ dcmd(MRS | ADDR(mr | 0x100)); /* DLL reset */
+ dcmd(PALL); dcmd(REFA); dcmd(REFA);
+ dcmd(MRS | ADDR(mr)); /* DLL no reset */
+ dcmd(EMRS1 | ADDR(emr | 0x380)); /* OCD defaults */
+ dcmd(EMRS1 | ADDR(emr)); /* OCD exit */
+}
+
+#undef dcmd
+
+static inline void __bare_init s5p_dram_start_dll(phys_addr_t base, uint32_t phycon1)
+{
+ uint32_t pc0 = 0x00101000; /* the only legal initial value */
+ uint32_t lv;
+
+ /* Init DLL */
+ writel(pc0, base + S5P_DMC_PHYCONTROL0);
+ writel(phycon1, base + S5P_DMC_PHYCONTROL1);
+
+ /* DLL on */
+ pc0 |= 0x2;
+ writel(pc0, base + S5P_DMC_PHYCONTROL0);
+
+ /* DLL start */
+ pc0 |= 0x1;
+ writel(pc0, base + S5P_DMC_PHYCONTROL0);
+
+ /* Find lock val */
+ do {
+ lv = readl(base + S5P_DMC_PHYSTATUS);
+ } while ((lv & 0x7) != 0x7);
+
+ lv >>= 6;
+ lv &= 0xff; /* ctrl_lock_value[9:2] - coarse */
+ pc0 |= (lv << 24); /* ctrl_force */
+ writel(pc0, base + S5P_DMC_PHYCONTROL0); /* force value locking */
+}
+
+static inline void __bare_init s5p_dram_setup(phys_addr_t base, uint32_t mc0, uint32_t mc1,
+ int bus16, uint32_t mcon)
+{
+ mcon |= (S5P_DRAM_BURST) << 20;
+ /* 16 or 32-bit bus ? */
+ mcon |= bus16 ? 0x1000 : 0x2000;
+ if (mc1)
+ mcon |= 0x10000; /* two chips */
+
+ writel(mcon, base + S5P_DMC_MEMCONTROL);
+
+ /* Set up memory layout */
+ writel(mc0, base + S5P_DMC_MEMCONFIG0);
+ if (mc1)
+ writel(mc1, base + S5P_DMC_MEMCONFIG1);
+
+ /* Open page precharge policy - reasonable defaults */
+ writel(0xFF000000, base + S5P_DMC_PRECHCONFIG);
+
+ /* Set up timings */
+ writel(DMC_TIMING_AREF, base + S5P_DMC_TIMINGAREF);
+ writel(DMC_TIMING_ROW, base + S5P_DMC_TIMINGROW);
+ writel(DMC_TIMING_DATA, base + S5P_DMC_TIMINGDATA);
+ writel(DMC_TIMING_PWR, base + S5P_DMC_TIMINGPOWER);
+}
+
+static inline void __bare_init s5p_dram_start(phys_addr_t base)
+{
+ /* Reasonable defaults and auto-refresh on */
+ writel(0x0FFF1070, base + S5P_DMC_CONCONTROL);
+ /* Reasonable defaults */
+ writel(0xFFFF00FF, base + S5P_DMC_PWRDNCONFIG);
+}
+
+/*
+ * Initialize LPDDR memory bank
+ * TODO: this function is untested, see also init_seq function
+ */
+void __bare_init s5p_init_dram_bank_lpddr(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16)
+{
+ /* refcount 8, 90 deg. shift */
+ s5p_dram_start_dll(base, 0x00000085);
+ /* LPDDR type */
+ s5p_dram_setup(base, mc0, mc1, bus16, 0x100);
+
+ /* Start-Up Commands */
+ s5p_dram_init_seq_lpddr(base, 0);
+ if (mc1)
+ s5p_dram_init_seq_lpddr(base, 1);
+
+ s5p_dram_start(base);
+}
+
+/*
+ * Initialize LPDDR2 memory bank
+ * TODO: this function is untested, see also init_seq function
+ */
+void __bare_init s5p_init_dram_bank_lpddr2(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16)
+{
+ /* refcount 8, 90 deg. shift */
+ s5p_dram_start_dll(base, 0x00000085);
+ /* LPDDR2 type */
+ s5p_dram_setup(base, mc0, mc1, bus16, 0x200);
+
+ /* Start-Up Commands */
+ s5p_dram_init_seq_lpddr2(base, 0);
+ if (mc1)
+ s5p_dram_init_seq_lpddr2(base, 1);
+
+ s5p_dram_start(base);
+}
+
+/*
+ * Initialize DDR2 memory bank
+ */
+void __bare_init s5p_init_dram_bank_ddr2(phys_addr_t base, uint32_t mc0, uint32_t mc1, int bus16)
+{
+ /* refcount 8, 180 deg. shift */
+ s5p_dram_start_dll(base, 0x00000086);
+ /* DDR2 type */
+ s5p_dram_setup(base, mc0, mc1, bus16, 0x400);
+
+ /* Start-Up Commands */
+ s5p_dram_init_seq_ddr2(base, 0);
+ if (mc1)
+ s5p_dram_init_seq_ddr2(base, 1);
+
+ s5p_dram_start(base);
+}
+
+
+#define BANK_ENABLED(base) (readl((base) + S5P_DMC_PHYCONTROL0) & 1)
+#define NUM_EXTRA_CHIPS(base) ((readl((base) + S5P_DMC_MEMCONTROL) >> 16) & 0xF)
+
+#define BANK_START(x) ((x) & 0xFF000000)
+#define BANK_END(x) (BANK_START(x) | ~(((x) & 0x00FF0000) << 8))
+#define BANK_LEN(x) (BANK_END(x) - BANK_START(x) + 1)
+
+static inline void sortswap(uint32_t *x, uint32_t *y)
+{
+ if (*y < *x) {
+ *x ^= *y;
+ *y ^= *x;
+ *x ^= *y;
+ }
+}
+
+uint32_t s5p_get_memory_size(void)
+{
+ int i;
+ uint32_t len;
+ uint32_t mc[4] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
+ /* Read MEMCONFIG registers */
+ if (BANK_ENABLED(S5P_DMC0_BASE)) {
+ mc[0] = readl(S5P_DMC0_BASE + S5P_DMC_MEMCONFIG0);
+ if (NUM_EXTRA_CHIPS(S5P_DMC0_BASE) > 0)
+ mc[1] = readl(S5P_DMC0_BASE + S5P_DMC_MEMCONFIG1);
+ }
+ if (BANK_ENABLED(S5P_DMC1_BASE)) {
+ mc[2] = readl(S5P_DMC1_BASE + S5P_DMC_MEMCONFIG0);
+ if (NUM_EXTRA_CHIPS(S5P_DMC1_BASE) > 0)
+ mc[3] = readl(S5P_DMC1_BASE + S5P_DMC_MEMCONFIG1);
+ }
+ /* Sort using a sorting network */
+ sortswap(mc + 0, mc + 2);
+ sortswap(mc + 1, mc + 3);
+ sortswap(mc + 0, mc + 1);
+ sortswap(mc + 2, mc + 3);
+ sortswap(mc + 1, mc + 2);
+ /* Is at least one chip enabled? */
+ if (mc[0] == 0xFFFFFFFF)
+ return 0;
+ /* Determine maximum continuous region at start */
+ len = BANK_LEN(mc[0]);
+ for (i = 1; i < 4; ++i) {
+ if (BANK_START(mc[i]) == BANK_END(mc[i - 1]) + 1)
+ len += BANK_LEN(mc[i]);
+ else
+ break;
+ }
+ return len;
+}
--
1.7.10
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^ permalink raw reply [flat|nested] 4+ messages in thread* [PATCH 2/2] Add FriendlyArm Tiny210 board (S5PV210)
2012-07-02 15:53 [PATCH 0/2] Very minimal support S5PV210 board (Tiny210) Alexey Galakhov
2012-07-02 15:53 ` [PATCH 1/2] S5P DRAM support Alexey Galakhov
@ 2012-07-02 15:53 ` Alexey Galakhov
2012-07-04 6:51 ` [PATCH 0/2] Very minimal support S5PV210 board (Tiny210) Sascha Hauer
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Galakhov @ 2012-07-02 15:53 UTC (permalink / raw)
To: barebox; +Cc: Alexey Galakhov
Signed-off-by: Alexey Galakhov <agalakhov@gmail.com>
---
arch/arm/Makefile | 1 +
arch/arm/boards/tiny210/Makefile | 1 +
arch/arm/boards/tiny210/config.h | 19 ++++++
arch/arm/boards/tiny210/lowlevel.c | 72 +++++++++++++++++++++++
arch/arm/boards/tiny210/tiny210.c | 113 ++++++++++++++++++++++++++++++++++++
arch/arm/configs/tiny210_defconfig | 17 ++++++
arch/arm/mach-samsung/Kconfig | 20 +++++--
7 files changed, 237 insertions(+), 6 deletions(-)
create mode 100644 arch/arm/boards/tiny210/Makefile
create mode 100644 arch/arm/boards/tiny210/config.h
create mode 100644 arch/arm/boards/tiny210/lowlevel.c
create mode 100644 arch/arm/boards/tiny210/tiny210.c
create mode 100644 arch/arm/configs/tiny210_defconfig
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1225df7..89cd1cb 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -137,6 +137,7 @@ board-$(CONFIG_MACH_TX51) := karo-tx51
board-$(CONFIG_MACH_MX6Q_ARM2) := freescale-mx6-arm2
board-$(CONFIG_MACH_TOSHIBA_AC100) := toshiba-ac100
board-$(CONFIG_MACH_CCMX51) := ccxmx51
+board-$(CONFIG_MACH_TINY210) := tiny210
machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
diff --git a/arch/arm/boards/tiny210/Makefile b/arch/arm/boards/tiny210/Makefile
new file mode 100644
index 0000000..9c38e60
--- /dev/null
+++ b/arch/arm/boards/tiny210/Makefile
@@ -0,0 +1 @@
+obj-y += tiny210.o lowlevel.o
diff --git a/arch/arm/boards/tiny210/config.h b/arch/arm/boards/tiny210/config.h
new file mode 100644
index 0000000..86aedf0
--- /dev/null
+++ b/arch/arm/boards/tiny210/config.h
@@ -0,0 +1,19 @@
+#define S5PCXX_CLOCK_REFERENCE 24000000
+
+#define set_pll(mdiv, pdiv, sdiv) (1<<31 | mdiv<<16 | pdiv<<8 | sdiv)
+
+#define BOARD_APLL_VAL set_pll(0x7d, 0x3, 0x1)
+#define BOARD_MPLL_VAL set_pll(0x29b, 0xc, 0x1)
+#define BOARD_EPLL_VAL set_pll(0x60, 0x6, 0x2)
+#define BOARD_VPLL_VAL set_pll(0x6c, 0x6, 0x3)
+
+#define BOARD_CLK_DIV0_MASK 0xFFFFFFFF
+#define BOARD_CLK_DIV0_VAL 0x14131440
+#define BOARD_APLL_LOCKTIME 0x2cf
+
+#define S5P_DRAM_WR 3
+#define S5P_DRAM_CAS 4
+#define DMC_TIMING_AREF 0x00000618
+#define DMC_TIMING_ROW 0x2B34438A
+#define DMC_TIMING_DATA 0x24240000
+#define DMC_TIMING_PWR 0x0BDC0343
diff --git a/arch/arm/boards/tiny210/lowlevel.c b/arch/arm/boards/tiny210/lowlevel.c
new file mode 100644
index 0000000..19739d8
--- /dev/null
+++ b/arch/arm/boards/tiny210/lowlevel.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 Alexey Galakhov
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <init.h>
+#include <io.h>
+#include <asm/barebox-arm.h>
+#include <asm/sections.h>
+#include <mach/s3c-iomap.h>
+#include <mach/s3c-clocks.h>
+#include <mach/s3c-generic.h>
+
+/*
+ * iROM boot from MMC
+ * TODO: replace this by native boot
+ */
+
+#define ADDR_V210_SDMMC_BASE 0xD0037488
+#define ADDR_CopySDMMCtoMem 0xD0037F98
+
+int __bare_init s5p_irom_load_mmc(void *dest, uint32_t start_block, uint16_t block_count)
+{
+ typedef uint32_t (*func_t) (int32_t, uint32_t, uint16_t, uint32_t*, int8_t);
+ uint32_t chbase = readl(ADDR_V210_SDMMC_BASE);
+ func_t func = (func_t)readl(ADDR_CopySDMMCtoMem);
+ int chan = (chbase - 0xEB000000) >> 20;
+ if (chan != 0 && chan != 2)
+ return 0;
+ return func(chan, start_block, block_count, (uint32_t*)dest, 0) ? 1 : 0;
+}
+
+
+void __bare_init board_init_lowlevel(void)
+{
+ uint32_t r;
+
+#ifdef CONFIG_S3C_PLL_INIT
+ s5p_init_pll();
+#endif
+
+ if (get_pc() < 0xD0000000) /* Are we running from iRAM? */
+ return; /* No, we don't. */
+
+ s5p_init_dram_bank_ddr2(S5P_DMC0_BASE, 0x20E00323, 0, 0);
+
+ if (! s5p_irom_load_mmc((void*)TEXT_BASE - 16, 1, (barebox_image_size + 16 + 511) / 512))
+ while (1) { } /* hang */
+
+ /* Jump to SDRAM */
+ r = (unsigned)TEXT_BASE;
+ __asm__ __volatile__("mov pc, %0" : : "r"(r));
+ while (1) { } /* hang */
+}
diff --git a/arch/arm/boards/tiny210/tiny210.c b/arch/arm/boards/tiny210/tiny210.c
new file mode 100644
index 0000000..1277649
--- /dev/null
+++ b/arch/arm/boards/tiny210/tiny210.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2012 Alexey Galakhov
+ * Based on Mini6410 code by Juergen Beisert
+ *
+ * Copyright (C) 2012 Juergen Beisert, Pengutronix
+ *
+ * In some ways inspired by code
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <init.h>
+#include <sizes.h>
+#include <generated/mach-types.h>
+#include <dm9000.h>
+#include <gpio.h>
+#include <led.h>
+#include <io.h>
+#include <nand.h>
+#include <asm/armlinux.h>
+#include <mach/s3c-iomap.h>
+#include <mach/s3c-clocks.h>
+#include <mach/s3c-generic.h>
+
+
+static const unsigned pin_usage[] = {
+ /* TODO */
+};
+
+static struct gpio_led leds[] = {
+ {
+ .gpio = GPJ20,
+ .led = {
+ .name = "led1",
+ }
+ }, {
+ .gpio = GPJ21,
+ .led = {
+ .name = "led2",
+ }
+ }, {
+ .gpio = GPJ22,
+ .led = {
+ .name = "led3",
+ }
+ }, {
+ .gpio = GPJ23,
+ .led = {
+ .name = "led4",
+ }
+ }
+};
+
+static int tiny210_mem_init(void)
+{
+ arm_add_mem_device("ram0", S3C_SDRAM_BASE, s5p_get_memory_size());
+ return 0;
+}
+mem_initcall(tiny210_mem_init);
+
+static int tiny210_console_init(void)
+{
+ /*
+ * configure the UART1 right now, as barebox will
+ * start to send data immediately
+ */
+ s3c_gpio_mode(GPA00_RXD0 | ENABLE_PU);
+ s3c_gpio_mode(GPA01_TXD0);
+ s3c_gpio_mode(GPA02_NCTS0 | ENABLE_PU);
+ s3c_gpio_mode(GPA03_NRTS0);
+
+ add_generic_device("s3c_serial", -1, NULL,
+ S3C_UART1_BASE, S3C_UART1_SIZE,
+ IORESOURCE_MEM, NULL);
+ return 0;
+}
+console_initcall(tiny210_console_init);
+
+static int tiny210_devices_init(void)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(pin_usage); i++)
+ s3c_gpio_mode(pin_usage[i]);
+
+ for (i = 0; i < ARRAY_SIZE(leds); i++) {
+ leds[i].active_low = 1;
+ gpio_direction_output(leds[i].gpio, leds[i].active_low);
+ led_gpio_register(&leds[i]);
+ }
+
+ armlinux_set_bootparams((void*)S3C_SDRAM_BASE + 0x100);
+ armlinux_set_architecture(MACH_TYPE_MINI210);
+
+ return 0;
+}
+device_initcall(tiny210_devices_init);
diff --git a/arch/arm/configs/tiny210_defconfig b/arch/arm/configs/tiny210_defconfig
new file mode 100644
index 0000000..e9708bf
--- /dev/null
+++ b/arch/arm/configs/tiny210_defconfig
@@ -0,0 +1,17 @@
+CONFIG_ARCH_S5PCxx=y
+CONFIG_CPU_V7=y
+CONFIG_CPU_32v7=y
+CONFIG_BOARDINFO="Tiny 210"
+CONFIG_ARCH_BAREBOX_MAX_BARE_INIT_SIZE=0x1ff0
+CONFIG_ARCH_SAMSUNG=y
+CONFIG_CPU_S5PV210=y
+CONFIG_MACH_TINY210=y
+CONFIG_S3C_LOWLEVEL_INIT=y
+CONFIG_S3C_PLL_INIT=y
+CONFIG_S3C_SDRAM_INIT=y
+CONFIG_CMD_LED=y
+CONFIG_CMD_LED_TRIGGER=y
+CONFIG_DRIVER_SERIAL_S3C=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_LED_TRIGGERS=y
diff --git a/arch/arm/mach-samsung/Kconfig b/arch/arm/mach-samsung/Kconfig
index c60f5ed..90cda30 100644
--- a/arch/arm/mach-samsung/Kconfig
+++ b/arch/arm/mach-samsung/Kconfig
@@ -8,11 +8,13 @@ config ARCH_TEXT_BASE
default 0x31fc0000 if MACH_MINI2440
default 0x31fc0000 if MACH_A9M2440
default 0x31fc0000 if MACH_A9M2410
+ default 0x23e00000 if MACH_TINY210
config BOARDINFO
default "Mini 2440" if MACH_MINI2440
default "Digi A9M2440" if MACH_A9M2440
default "Digi A9M2410" if MACH_A9M2410
+ default "Tiny 210" if MACH_TINY210
config ARCH_BAREBOX_MAX_BARE_INIT_SIZE
hex
@@ -92,12 +94,18 @@ config CPU_S5PC110
config CPU_S5PV210
bool
-#choice
-#
-# prompt "S5PCxx board type"
-#
-#
-#endchoice
+choice
+
+ prompt "S5PCxx board type"
+
+config MACH_TINY210
+ bool "Tiny 210"
+ select CPU_S5PV210
+ select MACH_HAS_LOWLEVEL_INIT
+ select MACH_DO_LOWLEVEL_INIT
+ select S3C_SDRAM_INIT
+
+endchoice
endif
--
1.7.10
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