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authorWolfgang Denk <wd@denx.de>2012-07-08 19:26:33 +0200
committerWolfgang Denk <wd@denx.de>2012-07-08 19:26:33 +0200
commit50cd93b25033764dcda9bb47aa68be778f94d36e (patch)
treeb8606a377b805952d533300dfa1e98e42951678e /arch/arm/cpu/armv7/omap5/hwinit.c
parent8246ff864de38935ff34108856a37a2caf6cbefc (diff)
parentd702b0811df53a1fc2d8049e35431e4591d093c6 (diff)
downloadu-boot-50cd93b25033764dcda9bb47aa68be778f94d36e.tar.gz
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: (212 commits) ARM: cache: Move the cp15 CR register read before flushing the cache. ARM: introduce arch_early_init_r() PXA: Enable CONFIG_PREBOOT on zipitz2 ARM: mx28: Remove CONFIG_ARCH_CPU_INIT No need to define CONFIG_ARCH_CPU_INIT. add new board vl_ma2sc MTD: SPEAr SMI: Add write support for length < 4 bytes i2c: designware_i2c.c: Add support for the "i2c probe" command rtc/m41t62: Add support for M41T82 with HT (Halt Update) SPL: ARM: spear: Add SPL support for SPEAr600 platform Makefile: Add u-boot.spr build target (SPEAr) SPL: ARM: spear: Remove some objects from SPL build SPL: lib/Makefile: Add crc32.c to SPL build SPL: common/Makefile: Add image.c to SPL build arm: Don't use printf() in SPL builds GPIO: Add SPEAr GPIO driver net: Multiple updates/enhancements to designware.c cleanup/SPEAr: Define configuration flags more elegantly cleanup/SPEAr: Remove unnecessary parenthesis SPEAr: Correct SoC ID offset in misc configuration space SPEAr: explicitly select clk src for UART SPEAr: Remove CONFIG_MTD_NAND_VERIFY_WRITE to speed up NAND access SPEAr: Enable ONFI nand flash detection for spear3xx and 6xx and evb SPEAr: Enable CONFIG_SYS_FLASH_EMPTY_INFO macro SPEAr: Correct the definition of CONFIG_SYS_MONITOR_BASE SPEAr: Enable CONFIG_SYS_FLASH_PROTECTION SPEAr: Enable dcache for fast file transfer SPEAr: Enable autoneg for ethernet SPEAr: Enable udc and usb-console support only for usbtty configuration SPEAr: Enable usb device high speed support SPEAr: Initialize SNOR in early_board_init_f SPEAr: Change the default environment variables SPEAr: Remove unused flag (CONFIG_SYS_HZ_CLOCK) SPEAr: Add configuration options for spear3xx and spear6xx boards SPEAr: Add basic arch related support for SPEAr SoCs SPEAr: Add interface information in initialization SPEAr: Add macb driver support for spear310 and spear320 SPEAr: Configure network support for spear SoCs SPEAr: Place ethaddr write and read within CONFIG_CMD_NET SPEAr: Eliminate dependency on Xloader table SPEAr: Fix ARM relocation support st_smi: Fixed page size for Winbond W25Q128FV flash st_smi: Change timeout loop implementation st_smi: Fix bug in flash_print_info() st_smi: Change the flash probing method st_smi: Removed no needed dependency on ST_M25Pxx_ID st_smi: Fix smi read status st_smi: Move status register read before modifying ctrl register st_smi: Read status until timeout happens st_smi: Enhance the error handling st_smi: Change SMI timeout values st_smi: Return error in case TFF is not set st_smi: Add support for SPEAr SMI driver mtd/NAND: Remove obsolete SPEAr specific NAND drivers SPEAr: Configure FSMC driver for NAND interface mtd/NAND: Add FSMC driver support arm/km: remove calls to kw_gpio_* in board_early_init_f arm/km: add implementation for read_dip_switch arm/km: support the 2 PCIe fpga resets arm/km: skip FPGA config when already configured arm/km: redefine piggy 4 reg names to avoid conflicts arm/km: cleanup km_kirkwood boards arm/km: enable BOCO2 FPGA download support arm/km: remove portl2.h and use km_kirkwood instead arm/km: convert mgcoge3un target to km_kirkwood arm/km: add kmcoge5un board support arm/km: add kmnusa board support arm: bugfix: save_boot_params_default accesses uninitalized stack when -O0 cm-t35: fix incorrect NAND_ECC layout selection ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls. ARM: OMAP4/5: Move USB pads to essential list. ARM: OMAP4/5: Move USB clocks to essential group. ARM: OMAP4/5: Move gpmc clocks to essential group. ARM: OMAP4+: Move external phy initialisations to arch specific place. omap4: Use a smaller M,N couple for IVA DPLL da850/omap-l138: Enable auto negotiation in RMII mode omap: am33xx: accomodate input clocks other than 24 Mhz omap: emif: fix bug in manufacturer code test omap: emif: deal with rams that return duplicate mr data on all byte lanes OMAP4+: Force DDR in self-refresh after warm reset OMAP4+: Handle sdram init after warm reset ARM: OMAP3+: Detect reset type arm: bugfix: Move vector table before jumping relocated code Kirkwood: Add support for Ka-Ro TK71 arm/km: use spi claim bus to switch between SPI and NAND arm/kirkwood: protect the ENV_SPI #defines ARM: don't probe PHY address for LaCie boards lacie_kw: fix CONFIG_SYS_KWD_CONFIG for inetspace_v2 lacie_kw: fix SDRAM banks number for net2big_v2 Kirkwood: add lschlv2 and lsxhl board support net: add helper to generate random mac address net: use common rand()/srand() functions lib: add rand() function kwboot: boot kirkwood SoCs over a serial link kw_spi: add weak functions board_spi_claim/release_bus kw_spi: support spi_claim/release_bus functions kw_spi: backup and reset the MPP of the chosen CS pin kirkwood: fix calls to kirkwood_mpp_conf kirkwood: add save functionality kirkwood_mpp_conf function km_arm: use filesize for erase in update command arm/km: enable mii cmd arm/km: remove CONFIG_RESET_PHY_R arm/km: change maintainer for mgcoge3un arm/km: fix wrong comment in SDRAM config for mgcoge3un arm/km: use ARRAY_SIZE macro arm/km: rename CONFIG option CONFIG_KM_DEF_ENV_UPDATE arm/km: add piggy mac adress offset for mgcoge3un arm/km: add board type to boards.cfg AT91SAM9*: Change kernel address in dataflash to match u-boot's size ATMEL/PIO: Enable new feature of PIO on Atmel device ehci-atmel: fix compiler warning AT91: at91sam9m10g45ek : Enable EHCI instead OHCI Atmel : usb : add EHCI driver for Atmel SoC Fix: AT91SAM9263 nor flash usage Fix: broken boot message at serial line on AT91SAM9263-EK board i.MX6 USDHC: Use the ESDHC clock mx28evk: Fix boot by adjusting HW_DRAM_CTL29 register i.MX28: Add function to adjust memory parameters mx28evk: Fix PSWITCH key position mx53smd: Remove CONFIG_SYS_I2C_SLAVE definition mx53loco: Remove CONFIG_SYS_I2C_SLAVE definition mx53evk: Remove CONFIG_SYS_I2C_SLAVE definition mx53ard: Remove CONFIG_SYS_I2C_SLAVE definition mx35pdk: Remove CONFIG_SYS_I2C_SLAVE definition imx31_phycore: Remove CONFIG_SYS_I2C_SLAVE definition mx53ard: Remove unused CONFIG_MII_GASKET mx6: Avoid writing to read-only bits in imximage.cfg m28evk: use same notation to alloc the 128kB stack ... Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv7/omap5/hwinit.c')
-rw-r--r--arch/arm/cpu/armv7/omap5/hwinit.c123
1 files changed, 103 insertions, 20 deletions
diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index d01cc81333..d0c3ff7021 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -35,6 +35,7 @@
#include <asm/sizes.h>
#include <asm/utils.h>
#include <asm/arch/gpio.h>
+#include <asm/emif.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -52,6 +53,81 @@ static struct gpio_bank gpio_bank_54xx[6] = {
const struct gpio_bank *const omap_gpio_bank = gpio_bank_54xx;
#ifdef CONFIG_SPL_BUILD
+/* LPDDR2 specific IO settings */
+static void io_settings_lpddr2(void)
+{
+ struct omap_sys_ctrl_regs *ioregs_base =
+ (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
+
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
+ &(ioregs_base->control_ddrch1_0));
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
+ &(ioregs_base->control_ddrch1_1));
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
+ &(ioregs_base->control_ddrch2_0));
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
+ &(ioregs_base->control_ddrch2_1));
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_CK_CKE_NCS_CA_PULL_DOWN,
+ &(ioregs_base->control_lpddr2ch1_0));
+ writel(DDR_IO_I_34OHM_SR_FASTEST_WD_CK_CKE_NCS_CA_PULL_DOWN,
+ &(ioregs_base->control_lpddr2ch1_1));
+ writel(DDR_IO_0_DDR2_DQ_INT_EN_ALL_DDR3_CA_DIS_ALL,
+ &(ioregs_base->control_ddrio_0));
+ writel(DDR_IO_1_DQ_OUT_EN_ALL_DQ_INT_EN_ALL,
+ &(ioregs_base->control_ddrio_1));
+ writel(DDR_IO_2_CA_OUT_EN_ALL_CA_INT_EN_ALL,
+ &(ioregs_base->control_ddrio_2));
+}
+
+/* DDR3 specific IO settings */
+static void io_settings_ddr3(void)
+{
+ u32 io_settings = 0;
+ struct omap_sys_ctrl_regs *ioregs_base =
+ (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
+
+ writel(DDR_IO_I_40OHM_SR_SLOWEST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddr3ch1_0));
+ writel(DDR_IO_I_40OHM_SR_FAST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddrch1_0));
+ writel(DDR_IO_I_40OHM_SR_FAST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddrch1_1));
+
+ writel(DDR_IO_I_40OHM_SR_SLOWEST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddr3ch2_0));
+ writel(DDR_IO_I_40OHM_SR_FAST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddrch2_0));
+ writel(DDR_IO_I_40OHM_SR_FAST_WD_DQ_NO_PULL_DQS_NO_PULL,
+ &(ioregs_base->control_ddrch2_1));
+
+ writel(DDR_IO_0_VREF_CELLS_DDR3_VALUE,
+ &(ioregs_base->control_ddrio_0));
+ writel(DDR_IO_1_VREF_CELLS_DDR3_VALUE,
+ &(ioregs_base->control_ddrio_1));
+ writel(DDR_IO_2_VREF_CELLS_DDR3_VALUE,
+ &(ioregs_base->control_ddrio_2));
+
+ /* omap5432 does not use lpddr2 */
+ writel(0x0, &(ioregs_base->control_lpddr2ch1_0));
+ writel(0x0, &(ioregs_base->control_lpddr2ch1_1));
+
+ writel(SDRAM_CONFIG_EXT_RD_LVL_11_SAMPLES,
+ &(ioregs_base->control_emif1_sdram_config_ext));
+ writel(SDRAM_CONFIG_EXT_RD_LVL_11_SAMPLES,
+ &(ioregs_base->control_emif2_sdram_config_ext));
+
+ /* Disable DLL select */
+ io_settings = (readl(&(ioregs_base->control_port_emif1_sdram_config))
+ & 0xFFEFFFFF);
+ writel(io_settings,
+ &(ioregs_base->control_port_emif1_sdram_config));
+
+ io_settings = (readl(&(ioregs_base->control_port_emif2_sdram_config))
+ & 0xFFEFFFFF);
+ writel(io_settings,
+ &(ioregs_base->control_port_emif2_sdram_config));
+}
+
/*
* Some tuning of IOs for optimal power and performance
*/
@@ -115,25 +191,10 @@ void do_io_settings(void)
(sc_fast << 17) | (sc_fast << 14);
writel(io_settings, &(ioregs_base->control_smart3io_padconf_1));
- /* LPDDR2 io settings */
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
- &(ioregs_base->control_ddrch1_0));
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
- &(ioregs_base->control_ddrch1_1));
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
- &(ioregs_base->control_ddrch2_0));
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_DQ_NO_PULL_DQS_PULL_DOWN,
- &(ioregs_base->control_ddrch2_1));
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_CK_CKE_NCS_CA_PULL_DOWN,
- &(ioregs_base->control_lpddr2ch1_0));
- writel(DDR_IO_I_34OHM_SR_FASTEST_WD_CK_CKE_NCS_CA_PULL_DOWN,
- &(ioregs_base->control_lpddr2ch1_1));
- writel(DDR_IO_0_DDR2_DQ_INT_EN_ALL_DDR3_CA_DIS_ALL,
- &(ioregs_base->control_ddrio_0));
- writel(DDR_IO_1_DQ_OUT_EN_ALL_DQ_INT_EN_ALL,
- &(ioregs_base->control_ddrio_1));
- writel(DDR_IO_2_CA_OUT_EN_ALL_CA_INT_EN_ALL,
- &(ioregs_base->control_ddrio_2));
+ if (omap_revision() <= OMAP5430_ES1_0)
+ io_settings_lpddr2();
+ else
+ io_settings_ddr3();
/* Efuse settings */
writel(EFUSE_1, &(ioregs_base->control_efuse_1));
@@ -143,6 +204,20 @@ void do_io_settings(void)
}
#endif
+void config_data_eye_leveling_samples(u32 emif_base)
+{
+ struct omap_sys_ctrl_regs *ioregs_base =
+ (struct omap_sys_ctrl_regs *) SYSCTRL_GENERAL_CORE_BASE;
+
+ /*EMIF_SDRAM_CONFIG_EXT-Read data eye leveling no of samples =4*/
+ if (emif_base == EMIF1_BASE)
+ writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
+ &(ioregs_base->control_emif1_sdram_config_ext));
+ else if (emif_base == EMIF2_BASE)
+ writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
+ &(ioregs_base->control_emif2_sdram_config_ext));
+}
+
void init_omap_revision(void)
{
/*
@@ -154,7 +229,15 @@ void init_omap_revision(void)
switch (rev) {
case MIDR_CORTEX_A15_R0P0:
- *omap_si_rev = OMAP5430_ES1_0;
+ switch (readl(CONTROL_ID_CODE)) {
+ case OMAP5430_CONTROL_ID_CODE_ES1_0:
+ *omap_si_rev = OMAP5430_ES1_0;
+ break;
+ case OMAP5432_CONTROL_ID_CODE_ES1_0:
+ default:
+ *omap_si_rev = OMAP5432_ES1_0;
+ break;
+ }
break;
default:
*omap_si_rev = OMAP5430_SILICON_ID_INVALID;