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| author | Steve Kipisz <s-kipisz2@ti.com> | 2013-07-18 15:13:04 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-07-30 09:21:41 -0400 |
| commit | c5c7a7c32d552592ac49749e5c184c89bd50c098 (patch) | |
| tree | 69c906c589a0a6c5e9c02a35a3719699cb7397f6 /arch | |
| parent | cd8845d7a49687e9e7f727c9d821accf22854dd3 (diff) | |
| download | blackbird-obmc-uboot-c5c7a7c32d552592ac49749e5c184c89bd50c098.tar.gz blackbird-obmc-uboot-c5c7a7c32d552592ac49749e5c184c89bd50c098.zip | |
am335x_evm: Add support to boot from NOR.
NOR requires that s_init be within the first 4KiB of the image so that
we can perform the rest of the required pinmuxing to talk with the rest
of NOR that we are found on. When NOR_BOOT is set we save our
environment in NOR at 512KiB and a redundant copy at 768KiB. We avoid
using SPL for this case and u-boot.bin is written directly to the start
of NOR.
We enclose the DMM-related parts of arch/arm/cpu/armv7/am33xx/emif4.c
with TI81xx checks as at this time U-Boot does not discard unused
sections in the main build and this code relies on functions specific to
(and only provided in) ti81xx-related code.
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/board.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 07ab91c3ee..f1623db13d 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -142,7 +142,7 @@ int arch_misc_init(void) return 0; } -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) void rtc32k_enable(void) { struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE; diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index ad7b70f93a..55dc3212ab 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -35,9 +35,11 @@ void dram_init_banksize(void) } -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) +#ifdef CONFIG_TI81XX static struct dmm_lisa_map_regs *hw_lisa_map_regs = (struct dmm_lisa_map_regs *)DMM_BASE; +#endif static struct vtp_reg *vtpreg[2] = { (struct vtp_reg *)VTP0_CTRL_ADDR, (struct vtp_reg *)VTP1_CTRL_ADDR}; @@ -45,6 +47,7 @@ static struct vtp_reg *vtpreg[2] = { static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif +#ifdef CONFIG_TI81XX void config_dmm(const struct dmm_lisa_map_regs *regs) { enable_dmm_clocks(); @@ -59,6 +62,7 @@ void config_dmm(const struct dmm_lisa_map_regs *regs) writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1); writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0); } +#endif static void config_vtp(int nr) { |
