From b18d220e48e7e0678dd104ec04faaaa11303fb8a Mon Sep 17 00:00:00 2001 From: Michael Sparmann Date: Sun, 14 Nov 2010 15:18:05 +0000 Subject: iPod Nano 2G: Use sane (150 microseconds) PLL locking delays and properly set a third CLKCON register I just discovered git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28588 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/s5l8700/crt0.S | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'firmware/target/arm') diff --git a/firmware/target/arm/s5l8700/crt0.S b/firmware/target/arm/s5l8700/crt0.S index 5fd959cf91..bcd26ffcf7 100644 --- a/firmware/target/arm/s5l8700/crt0.S +++ b/firmware/target/arm/s5l8700/crt0.S @@ -136,9 +136,11 @@ start_loc: ldr r0, =0x1ad200 // pdiv=0x1a, mdiv=0xd2 sdiv=0 #endif str r0, [r1,#0x04] // PLL0PMS - ldr r0, =8100 + mov r0, #0 + str r0, [r1,#0x08] // PLL1PMS + ldr r0, =280 str r0, [r1,#0x14] // PLL0LCNT - mov r0, #1 + mov r0, #3 str r0, [r1,#0x24] // PLLCON 1: ldr r0, [r1,#0x20] // PLLLOCK @@ -148,6 +150,8 @@ start_loc: str r0, [r1,#0x3c] // CLKCON2 ldr r0, =0x20803180 // FCLK_CPU = 200MHz, HCLK = 100MHz, PCLK = 50MHz, other clocks off str r0, [r1] // CLKCON + mov r0, #0x37 // SCLK = 25MHz + str r0, [r1,#0x10] // CLKCON3 ldr r2, =0xc0000078 mrc 15, 0, r0, c1, c0, 0 -- cgit v1.2.3