Merge patch series "global_data: Reduce size of struct global_data"

Simon Glass <sjg@chromium.org> says:

The global data structure has grown quite a lot over the years, being
the best place to put an important pointer or something that must be
accessed before and after relocation.

This series attempts to reduce the size a little, by moving some things
out and shrinking and aligning some fields.

Some fields are needed during init but not afterwards. To deal with this
a new 'boardf' structure is created, which sits on the stack and is only
present during board_init_f(). It is possible that more fields could
move to this struct, but for now only 4 are moved.

An assumption is made that an int is 32-bits wide on all architectures,
which seems to be true, but maintainers should be able to confirm.

Mostly the code-size impact is neutral, but the patch
'Use less space for environment fields' does increase U-Boot's size by
about 30 bytes on aarch64.

For firefly-rk3399 (64-bit) the size of global reduces from 456 to 368
bytes. For SPL it reduces from 416 to 272 bytes.

There are other things which could be attempted, for example:
- Using hlist instead of list for some lists
- Checking that only necessary fields are present in SPL

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c
index d71ab0a6385..05691a38d2e 100644
--- a/arch/x86/cpu/ivybridge/cpu.c
+++ b/arch/x86/cpu/ivybridge/cpu.c
@@ -55,7 +55,6 @@ int arch_cpu_init(void)
 
 static int ivybridge_cpu_init(void)
 {
-	struct pci_controller *hose;
 	struct udevice *bus, *dev;
 	int ret;
 
@@ -65,10 +64,6 @@ static int ivybridge_cpu_init(void)
 	if (ret)
 		return ret;
 	post_code(0x72);
-	hose = dev_get_uclass_priv(bus);
-
-	/* TODO(sjg@chromium.org): Get rid of gd->hose */
-	gd->hose = hose;
 
 	ret = uclass_first_device_err(UCLASS_LPC, &dev);
 	if (ret)